Passive House Raises the Performance Bar

The adoption of Passive House principles is accelerating across both residential and commercial sectors, driven by a demand for long-term building resilience. For example, while R-value has been the standard prescriptive measurement in measuring a material’s resistance to heat flow, it only tells you how a single component performs in a vacuum. In Passive House, U-Factor becomes the superior metric, representing the rate of heat loss through an entire assembly (studs, air gaps, fasteners, and insulation).

Because Passive House U-factors are significantly more stringent than standard IECC codes, exterior wall design must evolve. What these stricter thermal targets mean for external wall design is a shift from prescriptive insulation levels to holistic, performance-based solutions that account for more than just independent factors.

The Impact of Thermal Bridging

In standard commercial construction, steel framing is one of the primary culprits for energy loss. As a highly conductive material, when it penetrates an insulation layer, it creates “thermal highways” that allow heat to bypass the insulation entirely. This thermal bridging creates a massive discrepancy between nominal and effective R-values.

For example, while a fiberglass batt might be labeled as R-25 (nominal), the presence of steel studs every 16 inches can reduce the assembly’s performance to an effective R-7 or R-8. This represents a 60–70% loss in thermal efficiency. Passive House standard demands very low U-factors, relying on methods such as cavity insulation alone cannot achieve Passive House targets. No matter how much insulation is stuffed between the studs, the steel remains a constant leak that prevents the assembly from ever reaching high-performance benchmarks.

This relationship between framing, thermal conductivity and overall U-factor is a key reason why continuous exterior insulation is essential.

Why Continuous Exterior Insulation Is Essential

To eliminate the problem of thermal bridging and achieve Passive House targets, Sto Corp. systems are engineered to provide a thermal shield that acts as a “blanket” of continuous insulation to wrap the building envelope. These systems effectively neutralize the “thermal highways” created by steel studs in traditional insulation.

This approach offers critical hygrothermal benefits. By moving the insulation to the exterior, Sto systems shift the dew point outside the structural wall cavity, protecting the building from moisture accumulation and mold. Sto’s integrated system approach, incorporating the StoGuard® air and water-resistive barrier, ensures the assembly is both airtight and thermally efficient. Another benefit is that continuous insulation allows for superior performance without the extreme wall depths required by deep-cavity designs; this maintains constructability and maximizes usable interior square footage. Sto provides a reliable way to achieve the ultra-low U-factors essential for high-performance envelopes required by Passive House by focusing on the system rather than individual components.

EIFS as a Practical Path to Passive House

When it comes to EIFS, it is best to think of them not just as cladding, but as a sophisticated building envelope system. When properly designed, EIFS can achieve R-40+ wall assemblies. They are the ideal delivery method for continuous insulation.

Sto’s EIFS systems, StoTherm, are available with a variety of insulation materials that include expanded polystyrene (EPS), mineral wool, extruded polystyrene (XPS), and graphite polystyrene (GPS). As the newest offering in the StoTherm family, StoTherm ci GPS offers unique benefits for Passive House projects.

Sto GPS Board contains high-purity graphite that reflects radiant heat, providing a higher R-value per inch. This allows designers to achieve R-40+ wall assemblies with thinner profiles, maintaining code compliance while meeting Passive House standards. The board is recyclable and does not contain fluorocarbon blowing agents, resulting in long-term R-value stability, low global warming potential and zero ozone depletion potential.

In addition to being an integral part of the StoTherm ci system, a prefabricated finished wall panel, StoPanel GPS ci, incorporates Sto GPS Board for projects that require schedule certainty and factory-controlled quality.

These solutions leverage a system approach combining the AWRB, insulation, and aesthetic finish into a single assembly, creating cost-effective solutions for projects where maximizing thermal resistance per square inch is a critical objective.

Other StoTherm systems, such as StoTherm ci Mineral – as well as StoPanel systems, including StoPanel Classic NExT ci and StoPanel Mineral ci – also create a means to achieve Passive House standards.

Achieving Passive House thermal performance is not theoretical. With thoughtful wall assembly design and continuous exterior insulation, projects can realistically meet stringent Passive House energy targets while maintaining constructability and cost efficiency.

Sto is a trusted building science authority focused on real-world performance. For real world examples of projects using Sto building envelopes that were designed to Passive House standards, please visit our Project Gallery and Case Studies: Atrium at Sumner, Fairfax City Net Zero, and Knickerbocker Commons.

More technical, in-depth information related to achieving Passive House standards with Sto wall systems can be found in Tech Hotline 1125BSc . For assistance with your project, contact us online or call 800-221-2397.

The post To Exceed the Standard: Meeting Passive House Requirements with Continuous Insulation appeared first on Sto Corp..

In fact, because these revolutionary systems are so efficient and deliver significant long-term savings, demand for them is growing across all types of construction, including affordable housing.

That’s right, these advanced systems are ideal for affordable housing. No, correction: they’re a necessity. Let’s think about the unique demands of affordable housing for a moment. These types of buildings face some of the most demanding performance requirements. They are owned long-term and have limited funding for maintenance. The high occupancy results in frequent wear and tear. A high-performance building envelope is the obvious solution.

This article explores how these high-performance systems support durability, energy efficiency, and long-term value in affordable housing and the importance of lifecycle performance over first cost.

System Thinking as a Risk-Reducing Strategy

Historically, upfront costs were the most important factor in affordable housing construction. This led to material-by-material decision-making, resulting in a low-cost structure that was often low-performing. Insulation was sub-standard. Walls were drafty. And the operational costs were through the cheaply built roof.

System solutions perform better because all components are designed to work in harmony. System-based design leads to superior results, including:

• Reduced moisture intrusion and air leakage
• Improved energy efficiency and occupant comfort
• Minimized callbacks and repairs

Sto is a leader in systemized solutions. We design for how buildings are built, exposed, and maintained, reducing risks and improving durability. Our integrated components are designed to work together under real-world conditions. And our tested assemblies reduce uncertainty. Some features of our integrated approach include:

• Continuous insulation
• Air and water-resistive barriers
• Durable finishes engineered to work together

But how do these systems perform at scale? Our high-performance systems have been deployed in some of the most challenging urban environments. Wind-driven rain. Extreme freeze-thaw cycles. Accidental impacts. These are just a few of the challenges. As you’ll see, our systems are up to the task.

New York and New Jersey: Leading the Way

With its climate exposure, dense urban conditions, and stringent fire and energy codes, New York is probably one of the most daunting places for a building. New Jersey is likely a close second. Here are a few real-world case studies that demonstrate the building community’s confidence in our products and solutions.

Project: Atrium at Sumner

Photographer: ©Hufton+Crow

Location: Brooklyn, NY
Building Type: Multi-Family
Construction Type: New

Constructed as part of the NextGeneration NYCHA (New York City Housing Authority) initiative, the Atrium at Sumner is an 11-story building with 132,418 square feet of affordable senior housing and a ground-level community facility of 8,309 square feet along Marcus Garvey Boulevard. Due to the project’s rigorous demands, the design team chose StoTherm^® ci, a high-performance, energy-efficient EIFS with Drainage continuous insulation wall system that integrates StoGuard^® air and water-resistive barrier, EPS insulation, and drainage. This tested-and-proven system will save on energy costs for years to come. It also provides exceptional design flexibility, which was essential for this unique building, featuring a dynamic yet rational geometric form punctuated by a pattern of open and solid elements.

Read the entire case study here.

Project: Georgia King Village

Location: Newark, NJ
Building Type: Multi-Family
Construction Type: Renovation

Built in 1976, Georgia King Village in Newark, New Jersey, needed a makeover. The owners, L+M Development Partners, acquired the two 18-story affordable housing towers in July 2016. The complex was in distress, requiring improvements to individual units and to its structural integrity. Rehab priorities included installing a new facade/envelope/exterior to replace the uninsulated precast concrete facade. Heat and cold were leaking through the walls, and a livable temperature could not be properly maintained. As a result, the Georgia King Village residents were suffering.

With eight facades, multiple drops and a difficult design pattern to follow, this wasn’t an easy project. The building owner selected StoTherm^® ci, a system that combines StoTherm^® technology with a StoGuard^® waterproof air barrier, providing air, water, and vapor control layers to protect against moisture intrusion. Reinforced basecoat and mesh, along with a durable finish, added strength to the exterior. The makeover marks the official re-emergence of the residential complex as a symbolic cornerstone in Newark’s West Ward.

Read the entire case study here.

Project: Casa Celina

Location: Bronx, NY
Building Type: Multi-Family
Construction Type: New

Casa Celina is an affordable senior housing project that was constructed on an underutilized parking lot in the Bronx, NY. StoPanel MVES ci prefabricated panels were used for the exterior façade of this 17-story tower.

The original design called for a much heavier and less energy-efficient brick facade panel, with 7” of mineral wool outbound of the AWRB. Thermal modeling and some very creative design assistance moved the job to the StoPanel MVES ci, which provided a similar R-value with reduced insulation thickness. This system was the right choice for aesthetics, schedule delivery, cost savings, and improved energy efficiency for the building.

Read the entire case study here.

To learn more about Sto’s system solutions in affordable housing applications, check out these case studies as well as Knickerbocker Commons, Ocean Village (now Averne View), 111 Church Street, and The Heritage.

StoTherm^® – Revolutionizing Energy Performance

As a trusted partner, Sto delivers durability, resilience, and long-term value at scale. StoTherm^® ci systems is one of our most popular high-performance solutions. This proven system contributes to:

• Reduced thermal bridging
• Improved indoor comfort
• Lower operational energy costs
• Long-term benefits for owners and housing authorities

StoTherm^® ci systems also deliver design flexibility, allowing for visual variety while maintaining envelope continuity. Sto systems support:

• Brick, stone, textured, and contemporary aesthetics
• Multi-cladding designs within one compatible system
• Options for traditional, field-applied systems or prefabricated, finished wall panels

StoPanel^® systems provide a systemized approach to panelized construction, offering many benefits over traditional pre-cast panels, including speed, value and superior performance. All panels are lightweight, energy efficient, durable, and are available in a wide variety of aesthetic options. StoPanel systems are the preferred choice for new construction and renovation projects.

Making Affordable Housing More Affordable

High-performance envelope systems are not a luxury in affordable housing—they are essential infrastructure. They reduce maintenance and repair costs, improve durability and service life, and enhance residents’ comfort and livability, all while delivering long-term value for owners.

As you’ve learned, Sto’s system-based approach is a proven solution in some of the most demanding affordable housing environments. We invite you to learn more about these high-performance systems and to partner with Sto early to align on performance goals, code requirements, and long-term durability.

The post High-Performance Systems in Affordable Housing appeared first on Sto Corp..

Modern building envelopes are increasingly complex due to higher performance demands, tighter codes and layered assemblies. Complexity alone does not create risk, but uncoordinated systems do.

This blog post explores how uncoordinated systems can compromise an envelope and why a single-source envelope system is a better, more strategic decision.

Where Envelope Risk Typically Begins

So, what exactly is an “uncoordinated system”? An uncoordinated system is an envelope comprised of products and solutions from different manufacturers, pieced together in an attempt to create a unified system. The problem is that those products and solutions weren’t designed to work together. Even in a best-case scenario, there will be gaps in your envelope.

Gaps at transitions are only one potential issue. These piecemeal solutions often increase coordination challenges and liability. Other common failure points in multi-manufacturer assemblies include:

• Incompatible materials
• Unclear responsibility for transitions
• Conflicting installation requirements
• Warranty gaps

So, what’s the solution? Simplicity via single-source envelope systems.

What “Single-Source” Really Means

A single-source system is a system where components have been engineered to work together, and there is verified compatibility across all control layers. Integrated components reduce coordination challenges, improve performance reliability and limit long-term risk. At the highest level, single-source envelope systems are a practical risk-reduction strategy. And if anything goes wrong, there is zero confusion about which product manufacturer is responsible.

Many may think there must be drawbacks, such as sacrificing design flexibility. But there really aren’t any drawbacks. Single-source envelope systems simplify design (and can even enhance design freedom), reduce risk and improve long-term performance.

Sto’s Unified Envelope System Approach

Sto’s integrated approach includes proven technology such as StoGuard^® air and water-resistive barriers (AWRBs) and StoVentec^® rainscreen systems, and EIFS continuous insulation solutions with StoTherm^® ci, including noncombustible options. Plus, we offer field applied and prefabricated solutions, all with system harmony across all air, water, thermal and durability control layers.

These systems simplify design and specification with:

• Specification development
• Detail coordination
• Submittal review
• Reduced need for field-level problem solving due to tested assemblies

Benefits for contractors and installers include:

• Fewer incompatible materials onsite
• Clear sequencing and installation guidance
• Reduced rework and schedule disruption
• Trained application and consistent system execution

And for architects and designers, Sto provides flexibility without fragmentation. Our systems support multiple cladding types within a single envelope strategy and deliver design-driven aesthetics with consistent performance.

Why Simplicity Matters More as Codes Get Stricter

The simplicity of a unified system ensures continuity across transitions and penetrations, improving durability and long-term performance. But simplicity is important for other reasons as well. As building codes get stricter, simplicity will be key. Here’s why:

• Increasing performance and fire code requirements raise the stakes
• Simpler, tested systems reduce compliance risk
• Early collaboration ensures performance goals are achieved without overcomplication
• Simplicity is easier to maintain and adapt as requirements change

Simplicity as a Strategy

Clearly, simplicity is a strategic advantage in envelope design. Single-source envelope systems reduce risk, clarify responsibility and make high-performance buildings easier to design, build and maintain.

Sto has been a longtime champion of the system approach. We encourage you to prioritize coordination and accountability from the start and discover the power of simplicity.

We invite you to engage Sto early to simplify envelope design and reduce project risk. To learn more or request a project-specific consultation, explore our Wall Selector, contact us online or call 800-221-2397.

The post Single-Source Envelope Systems: Simplifying Performance and Reducing Risk appeared first on Sto Corp..

In this article, we challenge the perception that lighter exterior finishes are less durable. The weight alone of the exterior cladding or finish doesn’t determine performance; the system design does. And nobody does system design better than Sto. Get ready to rethink weight as a performance advantage.

The Problem with Traditional “Heavy Equals Durable” Thinking

As beautiful as some traditional cladding materials are, they come at a price and with tradeoffs. That’s why there’s a need for finishes that reduce weight without sacrificing resilience.

The tradeoffs of using masonry, brick and stone include:

• Structural load – The heavier the cladding, the stronger the structural framework needs to be which leads to more materials and increased costs
• Installation time and labor – Traditional cladding materials require skilled labor and take more time to install and set
• Cracking, efflorescence and long-term maintenance – Traditional materials are often not engineered for weather tightness and incur efflorescence, leading to more maintenance being required over time. Plus, rigid claddings can crack and fracture under impact.

There are situations where traditional cladding options make sense. But now more than ever, building owners are seeking durability by design, not mass.

Durability by Design, Not Mass

There’s more than one way to achieve durability. As we’ve already discussed, you can create a heavy-duty exterior using traditional, bulky materials. But now we can also achieve durability by design. Here are just a few of the ways we’re now doing that:

• Reinforced acrylic composition
• Flexibility that absorbs impact rather than transferring stress
• Integration with Sto’s reinforced basecoat and mesh assemblies

Sto’s products and systems are designed with considerations of the building process, use and maintenance of the structure over its lifecycle. The systemized approach reduces risks and improves the lifespan and durability of the building. By providing an engineered and tested system, our finishes and exterior claddings allow for seamless transitions that create a monolithic barrier against the elements.

StoCast: A Lightweight Finish Built for the Real World

StoCast is a family of prefabricated, flexible resin cast shapes that capture the natural beauty of traditional cladding in astonishing detail. This innovative cladding creates thin, lightweight profiles that offer flexible construction and adhesive application without mechanical fasteners. When integrated with StoTherm^® ci (or one of Sto’s other cladding systems), StoCast delivers proven durability, reduced risk and long-term maintenance advantages over traditional claddings.

StoCast also offers sustainability benefits, including:

• Reduced material usage
• Lower transportation energy
• Reduced structural demands
• Silica-free handling

StoTherm^® ci is an EIFS with Drainage continuous insulation wall system that integrates StoGuard^® air and water-resistive barrier, GPS, EPS or mineral wool insulation. It can achieve a variety of aesthetic appearances using Sto textured finishes, Sto Specialty finishes, or StoCast surface components. When StoCast is engineered as part of this complete wall system, even lightweight finishes can outperform traditional claddings.

StoCast Brick Durability Demonstration

Anyone can claim that a thinner, lighter material is just as durable as traditional claddings. We’re willing to show you. Below is a link to a video where we absolutely punish StoCast Brick, which is installed over StoTherm^® ci GPS with Sto Armor Mat XX mesh. (That’s our StoTherm complete wall system.)

To simulate real-world abuse scenarios, we conducted three different tests. These tests were:

• 20-foot steel weighted ball drop
• Baseball bat impact
• Hammer strike

So how did the StoCast Brick perform? The system remained undamaged with only minor, repairable aesthetic surface marks. This video clearly demonstrates StoCast Brick’s:

• Incredible impact resistance
• System integrity
• Repairability without replacement

It’s time for you to see for yourself. Watch this video to see StoCast Brick in action.

Durability in High-Risk and High-Traffic Applications

High-performance claddings and finishes are great anywhere, but they’re especially needed in high-risk and high-traffic applications. These include:

• Schools and campuses
• Multifamily and mixed-use buildings
• Renovation and recladding projects
• Areas prone to impact, vandalism or frequent contact

When used as part of a complete wall system, these cladding and finishes offer several advantages over traditional brick and wood:

• Reduced cracking and efflorescence
• Lower maintenance burden
• Faster repair when damage occurs

Design Flexibility Without Performance Compromise

Sto Corp. believes in developing products that deliver design freedom by providing architects, designers and contractors with a wide array of customizable, high-performance building materials and facade systems. StoCast Brick and Wood are perfect examples. Here are some of the ways they provide design flexibility without compromise:

StoCast Brick

• Traditional and custom brick aesthetics
• Flexible shapes and patterns
• Proven 20+ year project history

StoCast Wood

• Authentic wood grain without warping or fading
• Interior and exterior use
• Curved surfaces, soffits and ceilings
• Ideal for multi-cladding facades using one integrated Sto system.

Why System Integration Matters

An exterior cladding or finish is only as robust as its transitions and other wall components. Material-only approaches create a piecemeal solution that inevitably results in gaps between incompatible products.

Sto’s integrated approach includes proven technology such as StoGuard AWRBs, StoTherm ci EIFS with drainage, and StoVentec rainscreen systems. Plus, we offer continuous insulation, including noncombustible options. And our comprehensive, systematized approach means one manufacturer, coordinated responsibility and reduced risk.

Lightweight Doesn’t Mean Less Durable

Creating durability through material mass is the old way. The new way to achieve durability is as a function of system design. System design can endow a lightweight cladding or finish with super performance powers. StoCast is proof. It’s a lightweight finish that delivers resilience, repairability and long-term performance.

Sto is a trusted authority in building science focused on real-world performance. We invite you to collaborate with our experts early in your next project to help you select the right reinforcement and wall assembly for impact-resistant designs or learn more about StoCast finishes.

The post Lightweight Finishes that Deliver Real-World Durability appeared first on Sto Corp..

Durability as a Path to Sustainability

With the unpredictability of today’s weather, all buildings are exposed to risk. But there are some buildings that face very specific challenges every day. Known as high-risk buildings, schools, hospitals, multifamily housing and civic facilities are prone to everyday wear, accidental impacts and vandalism.

For all these at-risk structures, durability and impact resistance are critical factors in resilient, sustainable and future-ready building design. Here are just a few reasons why:

• Long-lasting materials reduce replacement cycles, cutting embodied carbon and construction waste
• Durable facades directly support ESG (Environmental, Social and Governance) goals by lowering lifecycle emissions
• Impact-resistant envelopes reduce repair costs, operational downtime and insurance risks
• Impact resistance is now an integral part of an owner’s risk management strategy

But how can we increase the durability and impact resistance of our buildings without significantly driving up the cost? Is this future technology we’re talking about? Or are there proven solutions already in use? Let’s find out.

The Future of Durability is Here

There are some individual products that can help address specific risks. At Sto, we take a system approach to problems to ensure that all components work cohesively, optimizing the building’s performance. StoTherm^® ci is one of those systems that delivers outstanding durability while addressing multiple industry challenges.

An EIFS with Drainage continuous insulation wall system, StoTherm^® ci is a high-performance, energy-efficient wall cladding that integrates StoGuard^® air and water-resistive barrier, EPS insulation and drainage.

StoTherm^® ci systems combine energy efficiency (continuous insulation) with high impact resistance for a dual sustainability benefit. In fact, StoTherm ci can be as durable and impact resistant as you want it to be. The standard basecoat and mesh can be exchanged for more flexible or resilient components, depending on the specific building requirements.

These incredible systems have been tested far beyond the 150 inch-lb. ASTM maximum, achieving over 300 inch-lb. They have demonstrated resilience, ensuring compliance today and future-readiness for tomorrow’s climate and regulatory standards.

Design Freedom with Performance Assurance

Architects want creative control. Unfortunately, performance requirements often limit material options. That’s not the case with StoTherm^® ci systems.

Sto offers a wide selection of finishes in a variety of textures and an extensive range of color options to enhance your design and harmonize with the surrounding environment. You can choose from Sto textured finishes, Sto Specialty finishes or StoCast Prefabricated resin cast shapes. All these options are durable, resist dirt and water and are manufactured to high-quality standards. They serve to protect the building in addition to providing outstanding curb appeal.

That’s the beauty of a system, literally.

The Ultimate Real-Word Test of Durability: Kids

How durable are StoTherm^® ci systems? Durable enough to stand up to hundreds of kids being kids, as you’ll see in the highlighted case study below.

Location: Bronx, NY
Building Type: Education
Construction Type: New

LUBRANO CIAVARRA Architects (LCA) faced two significant challenges when designing Grand Concourse Academy Charter School. One, they needed to make the school stand out amidst the sea of red brick that pervades the Bronx neighborhood. And two, they had to design a building that would stand up to the elements – wind, rain, snow and, of course, kids being kids.

Sto was tapped to help. After reviewing the challenges, the company recommended ultra-high impact, double-strand, open-weave glass-fiber mesh embedded in the EIFS basecoat as a fortification layer to resist frequent abuse. (Give it your best try, kids!)

This super impact-resistant layer would be hidden beneath a beautiful design – inspired by a box of crayons – that incorporated vertical bands of contrasting colors. To create this signature, multi-hued, multi-panel look, Masucci Construction used a trowel, a roller, the complete StoTherm ci Lotusan system and a little creativity.

The completed installation featured one of the most durable facades with a vibrant, textured finish, all backed by a single full-system warranty.

To read the full case study, click here.

Impact Resistance as a Long-Term Value Strategy

Impact resistance is not a niche specification; it is a cornerstone of sustainable, resilient and cost-effective construction. And StoTherm^® ci systems demonstrate that durability, energy efficiency and design freedom can align in one complete envelope solution. It’s more than a technical solution. It’s a long-term value strategy for owners, architects and communities.

Discover a whole new level of durability and impact resistance that’s proven to stand up to the elements, heavy use and kids. Learn more about StoTherm ci systems today. Visit our StoTherm ci system page or download the StoTherm ci brochure or Contact Us for assistance with your project.

The post The Next Standard in Building Durability appeared first on Sto Corp..

In recent years, there has been a growing demand for deep, bold colors in modern architecture. Dark colors add depth and dimension, creating a sense of sophistication, luxury, and exclusivity that can be appealing to high-end clients. Dark colors can also help create a unique brand identity. Standing out is difficult today. Using darker colors can help create a one-of-a-kind aesthetic with a strong visual impact.

Before you go to the dark side, however, there are a few things to be aware of. Let’s start with performance.

Considerations for Dark Colors

We all know that lighter colors reflect more light. For darker colors, the opposite is true: they absorb more light. This exposes the exterior facade to more ultraviolet radiation, which can result in faster fading and the breakdown of organic pigments. Depending on your geography, UV exposure may or may not be a concern. After all, places like Las Vegas have greater UV intensity than places like Toronto.

If darker colors absorb more light, they also, by extension, absorb more heat. In geographies with wide temperature fluctuations, expansion and contraction due to heat and cold cycles can lead to cracking, creating maintenance challenges. Certain systems or materials may also recommend against the use of dark colors. Some wall systems, such as EIFS, that use foam plastic insulation as the continuous insulation can experience deformation when the surface reaches a temperature higher than 167°F. Therefore, it is recommended to use colors with an LRV above 20. An EIFS system using mineral wool is a viable solution when wanting to use EIFS with a dark color, as mineral wool insulation isn’t impacted by the higher surface temperature. (See Tech Hotline 1294 Restrictions on the Use of Dark Colors on EIFS systems).

Also, darker exterior colors tend to exacerbate moisture retention. So, while areas with high humidity or consistent rainfall exposure create ideal conditions for mold and mildew growth on any color coating, darker colors are especially vulnerable.

How LRV Factors Into the Equation

Light Reflectance Value (LRV) also plays a role here. LRV is the total amount of visible and usable light reflected by a surface in all directions when illuminated by a light source. This is measured as a percentage between 0 and 100, with absolute black having an LRV of 0 and white having an LRV of 100. Lighter colors typically have higher numbers than darker colors. The more light is reflected by a color, the higher the LRV; the more light is absorbed by a color, the lower the LRV.

In short, a lower LRV – typically associated with darker colors – absorbs more heat, which contributes to greater overall material stress, potentially shortening the product’s lifespan, fading colors, or impacting other materials in the building envelope, like the insulation.

The Science behind Pigment/Binder Choices for Finishes and Coatings

Inorganic pigments are less affected by light because they are more stable, resisting UV fade for longer periods. Organic pigments, on the other hand, allow for bold, custom hues but tend to fade faster.

Pigment Volume Concentration (PVC) refers to the ratio of pigment volume to the volume of solids in the paint film after drying. It’s a key factor influencing paint performance and properties, such as durability, gloss, and permeability. A higher PVC indicates that the paint has been formulated with more pigment and less binder. Because dark colors require more pigment, chalking is more visible. The aggregate volume in finishes drives the High PVC, making it impossible to fully encapsulate with polymer, and therefore, breaking down the coating or finish quicker.

The Basics of Bases

It is imperative to use the correct base when tinting a coating. TSW (Tint Station White) is not recommended as the base for all colors, especially dark or bold colors. Deep, dark bases are specifically designed to produce darker colors when tinted. Manufacturers often create bases designed for use with bold or dark colors. Just defaulting to what’s in stock can offer a “quick solution,” but is likely not the best solution for long-term performance. Using the manufacturer’s recommended base ensures that the final color is rich and vibrant without the need to add excessive amounts of colorant.

Now for the Good News

Sure, lighter colors perform better. But all is not lost. There are performance enhancers that address many of these issues. Building design alone can help. Roof overhangs and other shading design elements can greatly reduce UV and moisture exposure. Additionally, today’s coatings are becoming increasingly advanced. For example, coatings with fungal resistance can help mitigate the issues of mold and mildew commonly found in humid climates.

One of the easiest ways to extend durability and enhance performance when using dark colors is to use Sto^® Clear Coat Sealer and to specify colors that do not contain organic pigments, as these pigments are less affected by light.

Benefits of Sto Clear Coat Sealer include:

• Maximum Fade Resistance: 8-12+ years (dark organic colors)
• Improved dirt pick-up resistance (easy to clean)
• Improved Mar Resistance
• Improved Fungal and Algal Resistance
• Can be used over standard finishes
• Significantly extends service life vs standard finish

Another great solution is to use StoColor^® Acryl Plus, an acrylic-based, high-performance coating that protects against weather, salts, and environmental pollutants.

StoColor Acryl Plus (Eggshell and Flat) benefits include:

• Excellent Fade Resistance: 6-10 years (dark organic colors)
• Improved dirt pick-up resistance
• Improved Mar Resistance
• Improved Fungal and Algal Resistance
• Can be used over standard and textured finishes for a textured look with a dark color
• More forgiving application than CCS
• Offers much longer service life vs standard finish

Welcome to the Dark Side

Like many others, you’ve heard the call of the dark. Now, you’re aware of the drawbacks and the solutions to those drawbacks, so you’re able to thoughtfully integrate darker colors into your design. In other words, you’re no longer in the dark about darker colors. Welcome to the dark side.

To explore our high-performance dark color options, visit stocorp.com.

The post Welcome to the Dark Side: The Rise of Dark, Vibrant, and Saturated Colors in Exterior Design. appeared first on Sto Corp..

Building with Conscience isn’t just a tagline for Sto. It’s a guiding principle for the company that serves as a basis for our strategy to pursue products and solutions that are responsible, sustainable and innovative. In other words, our existing products align with modern energy performance standards and set new standards in the industry for better buildings.

Why Energy-Efficiency Matters

There are a range of reasons why we as an industry need to pursue energy efficiency relentlessly. The first and most obvious reason is the more energy efficient the building, the lower the cost to maintain it. Every owner wants that. In addition to reducing operating costs, energy efficiency maximizes occupant comfort and safety.

Not only does Sto strive to create energy-efficient buildings but also buildings that are more durable, require less maintenance, and have longer life cycles while still allowing for design freedom. Sto high-performance wall systems provide superior air and weather tightness and excellent long-lasting thermal performance, thus helping lower energy costs and reducing the carbon footprint of buildings.

So, what are these energy-efficient solutions, and how are they different? Let’s get to it.

A Holistic Approach

Sto takes a holistic approach to energy-efficient and sustainable design. What we mean by that is our products are designed to seamlessly work together, maximizing energy savings while enhancing durability and sustainability. Our comprehensive lineup of energy-efficient solutions includes systems that incorporate Sto GPS Board, Sto Lamellas and our iQ Technology products–StoColor^® Lotusan^®, StoLit^® Lotusan^®, and StoColor^® Dryonic^®.

Sto Intelligent Technology + Design™ (iQ Technology™) interweaves innovation with design to offer high-performance finish and coatings with unique attributes based on biomimicry principles that allow facades to stay clean longer than conventional paints and coatings, reducing maintenance and the operational carbon footprint of the building. The functionality behind each of these coatings is inspired by nature and designed to address the true needs of a building, not just the standards. Because these coatings deliver improved function through optimized product attributes, property owners will realize greater durability and lower lifecycle costs.

But our advanced coatings and finishes are only the beginning. Sto offers a number of other solutions that support energy efficiency, including:

Sto GPS Board

A graphite-enhanced, expanded polystyrene (GPS) insulation board that is recyclable, fluorocarbon-free, boasting a 4.7 R-value and allowing for thinner walls. It is intended for use in StoTherm^® ci, StoPowerwall^® ci, and StoPanel^® GPS systems.

StoTherm^® ci Systems

StoTherm^® ci Systems integrate the following key elements – continuous insulation (ci), air and water-resistive barrier, drainage and a variety of finish options to create a superior, sustainable wall cladding. As proven in the EIMA Exterior Wall Cladding Performance Study, this high-performing, lightweight, and eye-catching system saves energy and stays attractive for years. StoTherm^® ci improves indoor comfort and air quality while maintaining maximum curb appeal and lowering overall lifecycle costs. Sto also offers advanced stucco wall systems that include continuous insulation and StoGuard, an air and water-resistive barrier system that protects buildings against air leakage and moisture intrusion.

StoGuard^® Air and Water-Resistive Barriers

Fully tested and compliant with the most stringent green construction codes, StoGuard^® systems protect buildings against air leakage and moisture intrusion and are an ideal choice for design professionals who wish to employ one continuous, fully compatible air and water-resistive barrier system for all exterior walls on multi-cladding buildings.

StoGuard Detail Components are a set of fully compatible accessories designed for use with Sto products that provide continuous air and water-resistive barriers for all exterior walls. StoGuard Detail Components are typically installed first, then overcoated with the fluid-applied membrane, adding extra protection at critical areas such as movement joints, substrate transitions, penetrations, and rough openings, ensuring a durable barrier.

Sto Fireblocking

Sto Fireblocking is a unique, patent-pending solution designed to meet the stringent 2022 New York City Building Code for exterior wall assemblies. Built on technology trusted in Europe for over twenty years, Sto Fireblocking features the use of Sto Lamellas, a non-combustible fireblocking product, and is engineered and tested for use with Sto EIFS, stucco and rainscreen systems.

Energy Efficiency and Aesthetic Brilliance. See for Yourself.

Not only do our energy-efficient solutions deliver outstanding performance, but they also look incredible, and the versatility allows you to achieve virtually any look. But don’t take our word for it. Check out our project gallery to see for yourself. We’ve highlighted a few of our favorite projects below if you want to take a quick peek.

Bell Bank

Location: Fargo, North Dakota
Building Type: Commercial
Construction Type: Renovation

See how Sto’s energy-efficient solutions converted an old slip-form concrete structure into a modern work of art that is capable of withstanding Fargo’s brutal winter weather.

The Heritage

Location: New York, New York
Building Type: Multi-Family
Construction Type: Renovation

See how StoTherm^® ci helped transport these iconic residential towers that overlook Central Park into the age of efficiency.

Georgia King Village

Location: Newark, New Jersey
Building Type: Multi-Family
Construction Type: Renovation

Discover how StoTherm^® helped modernize this affordable housing development project that included eight facades, multiple drops and a difficult design pattern to follow.

The Atrium at Sumner

Location: Brooklyn, New York
Building Type: Multi-Family
Construction Type: New

Learn how the StoTherm^® ci system aided the New York City Housing Authority in incorporating Passive House energy efficiency standards into this new senior housing building.

Edgewater Condominiums

Location: North Myrtle Beach, South Carolina
Building Type: Multi-Family
Construction Type: Renovation

Read how all the old stucco was replaced with 250,000 SF of StoTherm^® ci Lotusan^® continuous insulation wall system, which led to more energy-efficient and newer-looking buildings.

White Castle

Location: Orlando, Florida
Building Type: Retail
Construction Type: New

To build their largest restaurant to date, White Castle used a combination of StoTherm^® systems to increase energy efficiency and provide protection against Florida’s frequent tropical.

Innovative Energy-Efficient Solutions from an Industry Leader

At Sto, we’re building smarter so you can too. It’s part of our mission and it’s our commitment to you. Our energy-efficient solutions are helping building owners create high-performance building envelopes that will reduce maintenance, lower operational costs, and increase longevity. And because Sto designs the products to work together seamlessly, you don’t have to piecemeal a system together. Sto can be your single-source provider, with everything falling under one warranty.

To learn more about Sto’s energy-efficient solutions, visit www.stocorp.com or call (800) 221-2397.

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Municipalities nationwide are scrutinizing fire regulations, especially for combustible exterior wall assemblies. In 2022, New York City introduced the NYC Building Code (BC), section BC 718.2.6, for constructing exterior wall assemblies containing combustible components. New York City authorities enacted these changes because of the density of high-rise structures in the city and their belief that current NFPA 285 testing did not address all concerns regarding the spread of fire where foam plastic and other combustible materials are used in exterior wall assemblies. Additional municipalities are likely to follow the New York Code, which requires non-combustible fireblocking to be incorporated into EIFS, MCM, HPL, FRP, and any other cladding with foam plastic insulation.

A Fireblocking Breakthrough Engineered by Sto

Driven by a commitment to innovation and safety, Sto Corp. developed a fireblocking solution to meet the latest rigorous fireblocking requirements for combustible exterior wall assemblies.

Sto Fireblocking is a unique, patent-pending solution that incorporates the use of Sto Lamellas, a non-combustible mineral wool product. Sto Lamellas are 48 inches long and 4 inches tall, precision cut and available in various thicknesses to accommodate R-value requirements. The product is adhered and, therefore, does not create any thermal bridging. It seamlessly integrates into StoTherm ci GPS/EPS, StoPowerwall ci, and StoVentec Rainscreen systems, offering a complete fireblocking solution for a wide range of applications.

Sto’s fireblocking solution is fully compliant with the new 2022 New York City Building Code (BC), section BC 718.2.6).

Fully Tested and Trusted Technology

To develop this innovative fireblocking solution, Sto leveraged over two decades of proven technology already utilized overseas. Lamellas have been fully tested and trusted across Europe for over two decades. Sto Lamella allows architects to design an energy-efficient building with lightweight cladding that is adhered to the substrate and, therefore, penetration-free. Plus, with Sto’s innovative solutions, virtually any aesthetic can be achieved, and as always with Sto, the systems include a complete air and water-resistive barrier.

Wall Systems that Meet the Most Stringent Fireblocking Requirements

These new building codes impact all exterior wall assemblies with wall coverings or claddings composed of other combustible materials, such as Metal Composite Materials (MCM), High-Pressure Laminates (HPL), Fiber-reinforced Plastic (FRP). When incorporated into StoTherm ci systems, StoPowerwall ci, or StoVentec Rainscreen systems, Sto Lamella provides a 2022 NYC BC code-compliant building envelope, tested in accordance with NFPA 285. Sto Fireblocking gives architects, contractors, and owners the confidence and ability to use wall systems that offer innovative design, are highly efficient, and meet the most rigorous building codes for fireblocking.

Engineered by Sto Corp. Approved by NYC.

The way in which the fireblocking layer in Sto Lamella is engineered using lamellas represents a significant advancement in fire safety technology. It is, quite literally, where safety meets innovation.

While it was engineered by Sto, the innovative world leader in claddings, air barriers, coatings, and restoration systems, this fireblocking breakthrough has been approved by New York City, the city with the most stringent building codes in the world.

For more information on Sto Lamella, please visit Stocorp.com or call (800) 221-2397.

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At Sto Corp., we admit we are a little obsessed with impact-resistant building materials. After all, the world can be a tough place—heat domes, drought, flash flooding, and woodpeckers. These persistent birds often cause unnecessary damage by pecking at the exterior of buildings.

Introducing Sto Strike Defense, an ultra-high impact resistance solution designed to protect EIFS (Exterior Insulation and Finish Systems) from blunt or sharp objects and mitigate damage caused by woodpeckers. We tapped (get it?) deep into our industry-leading innovation to develop a solution that’s easy to install and lives up to the promise of advanced protection. Sorry, woodpeckers.

Deterring Woodpeckers is Just the Beginning

Woodpeckers aren’t the only cause of blunt-force impacts. Punctures from vandalism and blunt and sharp objects are also a problem. Entryways, staircases, and lower sections are most susceptible to accidental impacts and punctures. Such damages can lead to water infiltration and system failures. Sto Strike Defense provides an additional layer of defense, preserving the look of the building and protecting the systems behind the cladding.

The Technology Behind the Product

Sto Strike Defense is a fortification option specifically engineered to offer outstanding impact and puncture resistance to new and existing EIFS. The key component of Sto Strike Defense is StoArmat Classic Plus, a patent-pending, organic, high-build acrylic plaster. This cement-free product means additional benefits of no efflorescence, less maintenance, and a smaller carbon footprint.

In restoration applications, fortification is achieved by embedding Sto Mesh in StoArmat Classic Plus over the existing EIFS. For new construction, the StoArmor Mat must be embedded in the basecoat along with the fortification layer.

Intelligent Solutions from an Industry Leader

Sto Corp. is the world’s leading innovator in claddings, air barriers, coatings, and restoration systems. So, it’s no surprise that we are developing impact-resistant solutions like Sto Strike Defense that help to improve building performance by reducing repairs and maintenance costs. But impact-resistant systems are only the beginning. Our portfolio includes special wall assemblies engineered to meet very particular design and performance requirements of the building enclosure and the ability to achieve a wide variety of aesthetic appearances using Sto textured finishes, Sto Specialty finishes, or StoCast prefabricated resin cast shapes.

For more information about Sto Strike Defense or Sto Corp., please visit www.stocorp.com or call (800) 221-2397. To find the perfect Sto system for your project, check out the Sto System Finder.

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Insulation Evolved

So, what exactly is GPS? GPS (graphite polystyrene) is a rigid thermal insulation material. The primary difference between GPS and traditional insulation products is that GPS insulating boards are thinner. In fact, they are up to 20% thinner than other rigid insulation boards. That means less material is required to achieve the same results. And the product itself is recyclable, making it more environmentally friendly.

What Makes the Sto GPS Insulation Unique?

It’s all about the graphite. Sto GPS Board is a rigid, graphite-enhanced, 100% closed-cell expanded polystyrene insulation board. We use graphite because it is the most stable form of carbon – safe and chemically inert. Plus, it reduces thermal conductivity and increases the R-value by as much as 25%.

Technically Speaking

So, how does the use of graphite and closed-cell construction impact performance? We’re glad you asked. It provides R4.7 per inch of thermal resistance at 75°F. In other words, our GPS Board enables you to achieve a higher R-value in thinner walls without the use of fluorocarbon blowing agents. Sto GPS Board complies with ASHRAE 90.1-2019 prescriptive continuous insulation requirements.

“Fluorocarbon Blowing Agents?”

It’s how some traditional polyurethane foam insulation panels are made. And some blowing agents are harmful to the environment. Sto GPS (and EPS) do not use blowing agents to achieve their thermal performance. As a result, the R-value is more stable than insulation that uses blowing agents, and they are better for the environment with no off gassing.

How Does a Thinner Board Affect Design?

Achieving a higher R-value in a thinner product gives design professionals new options for exterior wall configurations. Walls can be made thinner with equal thermal resistance, creating a larger interior for a given building footprint. Or wall thickness can remain the same, and thermal resistance can be substantially increased.

Another Sto Difference: Board Size

Sto GPS Board is available in larger sizes than most traditional panels and in various thicknesses. That means you’ll use fewer boards, and the boards are easier to work with. Plus, Sto GPS Board is installed using Sto TurboStick or Sto TurboStick Mini, so there are no mechanical fasteners, which means faster, easier installation and no thermal bridging.

Excels in Extreme Climates

The thermal resistance of the Sto GPS Board gets better as temperatures drop. It is rated at R4.7 per inch at 75°F per ASTM C578; at 40°F, it attains R4.9 per inch. In addition, the closed-cell design is moisture vapor semi-permeable. This allows a board in contact with water to dry out, helping preserve high insulation performance and facilitating moisture egress from wall systems.

Better for the Environment

As a result of the manufacturing method and the slimmer size of the panels, Sto GPS Board has excellent long-term R-value stability. With Sto GPS Board, very little additional material is needed, and the cost difference is negligible. The payoff is reduced building energy consumption, better building operating economics, and reduced emission of greenhouse gases. Did we mention that it’s also recyclable? Sto GPS insulation can be reused to make other products, so it never has to end up in a landfill.

Compatible with Sto’s Advanced Wall Systems

StoGPS Board is an integral part of our perfect wall, but it’s only the beginning. Sto GPS Board can be used as part of StoTherm^® ci GPS, StoTherm^® ci MVES, StoPowerwall^® ci, and StoPanel GPS ci.

Innovation, Inside and Out

We’ve talked about the innovation inside the walls, but what about the cladding and finishes on the outside? Sto GPS insulation works beautifully with StoCast Wood and StoCast Brick, which creates an authentic look while reducing costs, installation time, and the impact on our environment. Don’t forget about Sto’s high performance coatings and finishes, including Stolit Lotusan and StoColor Lotusan. These products mimic the self-cleaning capabilities of the lotus leaf, resisting dirt pick-up while keeping walls clean and attractive. Sto’s Specialty Finishes may also be used with GPS systems. For a complete look at Sto’s finish options, visit our website.

In addition to being compatible with StoTherm ci system, Sto GPS Board is also compatible with StoPowerwall, a premium integrated stucco wall system featuring a superior drainage plane and R5.0 or R10 Sto GPS Board continuous exterior Insulation; StoTherm ci MVES, designed for thin brick, natural stone, ceramic tile, or cultured stone; and StoPanel GPS ci, a lightweight prefabricated wall panel system.

Sto GPS Insulation: Protecting Our Future

Sto GPS insulation is the future of insulation. It not only offers superior, efficient insulation but is also recyclable.  By choosing Sto GPS Boards, you are making a commitment to a greener, more sustainable future. To see a comparison between GPS and other traditional insulation, visit our blog. To learn more about Sto’s Wall systems, visit our system finder page. Or to find the best Sto Wall System for your project, check out the Sto Wall Selector.

The post GPS Insulation: Leaner and Greener appeared first on Sto Corp..

The Climate Mobilization Act – Local Law 97 (LL97) was passed by the New York City Council and went into effect on November 15, 2019 as part of New York City’s Green New Deal. This legislation sets limits on greenhouse gas (GHG) emissions for nearly 50,000 of New York City’s largest buildings. At the same time, the Department of Buildings created the Office of Building Energy and Emissions Performance (OBEEP) to oversee the implementation and compliance of the NYC Local Law 97.

Building Emission Limits

In December 2022, the NYC Department of Buildings (DOB) set building emissions limits (carbon ft2) based on property type, size, and compliance year. Beginning in 2024, the law assigns emissions limits that reflect the variation in energy use between 60 different property types from the ENERGY STAR Portfolio Manager. The limits take effect over four compliance periods, from 2024 to 2049, with stricter requirements as time goes by and allows for a gradual reduction in a building’s carbon emissions.

Why NYC Adopted Local Law 97

Buildings generate over two-thirds of New York’s greenhouse gas emissions. Reducing greenhouse emissions will improve air quality, benefit human health and prevent economic losses due to lower agricultural yields, reduced labor productivity, and decreased industrial output.

By focusing LL97 on the city’s most prominent buildings, the Climate Mobilization Act predicts the following outcomes in New York City by 2030:

• Reduction in New York City’s overall emissions by 10 percent
• Lessening of the city’s dependency on fossil fuels
• Saving building owners money by reducing energy bills
• Removal of 6 million tons of greenhouse gas emissions is equivalent to taking 1.3 million cars off the road yearly
• Creation of 26,700 green jobs
• Lessening of the community’s exposure to harmful air pollution that causes respiratory illnesses
• Preventing 50 to 130 premature deaths annually
• Eliminating 150 hospital visits annually

Which Buildings Must Comply with Local Law 97?

Local Law 97 aims to reduce emissions produced by New York City’s buildings by 40 percent by 2030, and 80 percent by 2050. Local Law 97 applies to the following covered buildings, with some exceptions:

• Buildings with more than 25,000 gross ft2
• Two or more buildings on the same tax lot that together surpass 50,000 ft2
• Two or more buildings governed by the same condo association board of managers and together exceed 50,000 ft2. 

Buildings Exempt from NYC’s LL97

Local law exempts the following buildings from carbon emission limits:

• Industrial facility primarily used to generate electric power or steam
• Multi-family dwellings of 3 stories or lower, with no central HVAC or hot water system
• City buildings
• Non-profit hospitals and healthcare facilities
• New York Housing Authority’s housing developments or land
• Buildings classified as a group A-3 religious house of worship
• Rent regulated housing
• Real estate owned by a housing development fund company and organized by Article 11 of the private housing finance law and the business corporation law 
• Properties that participate in a project-based federal housing program

Affordable Housing Pathways

LL97 mandates that covered buildings with rent-regulated and/or affordable units should follow one of three pathways. The pathway depends on several factors, primarily based on the percentage of units in the building subject to rent regulation and if the units participate in a federal project-based housing program:

1. Prescriptive Pathway (Article 321): The pathway for buildings with 35 percent or more rent-regulated units or one or more units participating in a federal project-based housing program.

The Prescriptive Pathway (Article 321) mandates that by 2024, the buildings must achieve emissions below the applicable 2030 limits or prove full implementation of relevant Prescriptive Energy Conservation Measures. In addition, building owners must file a one-time report by May 2025.

2. 2026 Compliance Pathway: The pathway for buildings with between one and 35 percent rent-regulated units.

The 2026 Compliance Pathway mandates that by 2026, buildings must meet emission limits or face penalties. In addition, building owners must file annual reports starting May 2027.

3. 2035 Compliance Pathway: The pathway for Mitchell-Lama buildings with no federal project-based housing program or rent-regulated units. The building can have one plus income-restricted units through certain loans, grants, and real property tax benefits.

The 2035 Compliance Pathway mandates that buildings must meet emission limits starting in 2035 or face penalties. Building owners must file annual reports beginning May 2036.

Impact of LL97

The cost to upgrade a building’s energy efficiency in compliance with LL97 may challenge some building owners. However, the law will improve energy management and provide many long-lasting advantages for businesses, properties, and tenants:

• Enhances tenant satisfaction and lessens turnover by improving comfort and keeping rents affordable
• Increases the marketability and value of properties by installing high-performance equipment
• Lowers the building’s carbon footprint and contributes to a healthier, cleaner community
• Improves the building’s bottom line by lessening operating expenses

When Does Compliance to LL97 Start?

Starting January 1, 2024, building owners for the 60 different covered building types must comply with the first round of carbon emission limits. Compliance with emission standards will change over time until it reaches zero in 2050.

In addition, beginning May 1, 2025, building owners must file an annual report with the Office of Building Energy and Emissions Performance (OBEEP) detailing their yearly greenhouse gas emissions. A Registered Design Professional, like a professional engineer or registered architect, must submit the report.

Penalties for Non-Compliance to LL97

Building owners not complying with emission limits and reporting can face civil penalties and fines: 

• If a building exceeds its annual emission limit, the fine can amount to the difference between the building emissions limit and the LL97 emission limit, multiplied by $268.
• Not submitting your building’s annual emissions report can result in a civil penalty of $0.50 per gross ft2/month.
• Making a false statement can result in a Misdemeanor with a fine of up to $500K and prison for up to 30 days.

As with most extensive legislation, the NYC Department of Buildings has continued to clarify and define requirements to be in compliance with Local Law 97, including the newest packaging of rules from December 18, 2023.​

Timeline and Targets For LL97

Carbon emissions caps will become stricter over a series of compliance periods: 2024-2029, 2030-2034, 2035-2039, 2040-2049, and 2050 – outward.

December 31, 2024: The Prescriptive Pathway for regulated and affordable units mandates that building owners take specific energy conservation measures like upgrading lighting, weatherization, and air sealing or demonstrate compliance with 2030 emissions limits.

January 2024: Limited annual emissions for covered buildings for 2024 to 2029 begins. However, types of affordable housing and buildings (under the law’s Article 321 prescriptive path) have altered or delayed requirements. 

May 1, 2025: Building owners must submit their first detailed, compliance buildings emission report.

June 2025: City-owned buildings must achieve an emissions reduction target of 40 percent below fiscal year 2006.

January 1, 2026: OBEEP must submit the first annual compliance report on covered buildings to the mayor. Buildings with at least one, but no more than 35 percent rent-regulated units must begin complying with carbon emission limits. 

January 2030: Covered buildings must comply with new stricter emissions limits for calendar years 2030 – 2034. Also, after 2030, a building must lower its carbon associated with electricity use. In addition, the NYCHA must reduce greenhouse gas emissions by 40 percent below 2005 levels.

June 2030: City-owned buildings must achieve an emissions reduction target of 50 percent below fiscal year 2006.

January 2035: Three significant mandates begin in 2035:

1. Covered buildings must comply with new stricter emissions limits for calendar years 2035 – 2039.
2. A building must lower its carbon associated with electricity use in line with projected renewable energy deployment in NYS after 2035.
3. Income-restricted housing, like Mitchell Lama rentals, must begin complying with carbon emissions limits.

January 2050: All covered buildings must show compliance with an emission factor of 0.00. In addition, NYCHA must attempt to lower greenhouse gas emissions 80 percent below 2005 levels.

How To Prepare for Local Law 97

Ensuring that your building will meet carbon emission limits in 2024 requires evaluating your building’s status, improving its energy efficiency by applying new sustainable technologies, and educating yourself on carbon emissions.

Determine Your Building Current Energy Usage and Carbon Emissions

Determining your building’s current emissions compared to the 2024 carbon emission limits will help identify areas of improvement and prepare for meeting LL97 targets.

Building owners can measure and track greenhouse emissions as well as energy and water consumption using the ENERGY STAR Portfolio Manager® online tool, with just your energy bills and basic information about your building. 

A design professional (energy auditor) can help evaluate your building’s energy consumption, suggest ways to improve its energy efficiency, and navigate the complex reporting requirements of Local Law 97.

Begin Reducing Your Building Energy Use

Lessening your building’s energy use within can help prepare for LL97:

Install Sensors

Installing sensors can optimize a room’s lights based on occupancy and more efficiently control building comfort by enabling improved HVAC zone controls.

Replace Windows and Doors 

Installing ENERGY STAR-storm skylights, windows, and doors can lessen heat loss by 25 to 50 percent. In addition, automatically darkening windows can control glare and brightness from direct sunlight. Shades and louvers can block out the summer’s heat, but can let the warmth in during the cold months.

Energy-Efficient Lighting

Lighting contributes up to ten percent of a building’s annual electricity costs. Installing controls like dimmers, timers, or photocells that turn unused lights off and energy-efficient lighting, like halogen incandescent, light-emitting diodes (LEDs), and compact fluorescent lamps (CFLs) will lessen energy use.

High-Efficiency Ventilation Systems and HVAC 

A building’s heating and cooling system accounts for 34 percent of the structure’s energy use; therefore, consider replacing an old, inefficient HVAC system with a properly installed high-efficiency heating and cooling system. In addition, an energy recovery ventilation system can also manage ventilation and lower energy loss by transferring energy from outgoing conditioned, polluted air to fresh incoming air. 

Upgrade the Building Envelope

Upgrading the building envelope to include continuous insulation, an air and water-resistive barrier, and a durable, protective facade will create an energy-efficient, code-compliant, durable, and attractive commercial building that can contribute significantly towards achieving LL97 carbon emission limits.

Sto Corp. offers a variety of energy-efficient, code-compliant building envelope solutions that include continuous insulation and air and water-resistive barriers applicable for renovation projects and new construction.

Contact Sto Corp building envelope experts today to improve your building’s energy efficacy and work towards LL97 compliance.

Georgia King Village

Sto Products: StoTherm® ci Essence
Applicator: AA Construction
Architect: L+M Development
Distributor: Sto of New Jersey

L+M Development chose StoTherm® ci Essence to upgrade the nearly 50-year-old Georgia King Village affordable housing’s building envelope. Utilizing Sto Products helped to create a more efficient, comfortable, and attractive structure with improved structural integrity. 

75th Street, New York City’s Upper West Side

Sto Products: StoTherm ci with Stolit® Milano
Applicator: ProLine Finishes
Architect: Jeffrey Cole Architects
General Contractor: Source Construction Management, LLC

Entire sections of the original elegant porcelain tile facade of this seven-story, seven-unit residential building began falling off due to improper installation and water infiltration, requiring a Level 4 Remove and Reclad. The architects and contractor chose to replace the crumbling porcelain with StoTherm® ci system using Stolit® Milano porcelain finish. The Sto solution created an ultra-smooth, porcelain tile finish, mimicking grout lines with precisely drawn trowel marks.

333 Grand St

Sto Products: StoTherm® ci with StoSignature™ Stone & StoSignature™
Brick Applicator: Simpson Plastering
Distributor: Sto of NJ
Architect: Urban Architecture
Owner: Liberty Harbor

New Jersey developer chose to replace the original cladding of the 333 Grand, 18-story apartment building with StoTherm® ci wall system with StoSignature Stone and StoSignature Brick to improve the building envelope’s energy-efficiency and resilience while minimizing its carbon footprint and achieving higher LEED certification results. In addition, Sto products allowed for multiple cladding types and shapes, preserving the building’s unique aesthetics.

Lido Beach Towers, Long Island, NY U.S.A.

Sto Products: StoThermTM Premier NExT®
StoGuard Engineer: P.E. Consulting Engineers
Contractor: Flag Waterproofing & Restoration

Rehabilitation of the 100-year-old Lido Beach Towers condominium highlights the benefits of StoTherm® ci as a renovation method for degrading buildings. The aesthetically pleasing second-skin approach of EIFS significantly enhanced the building’s energy efficacy, health, and sustainability.

Ocean Village

General Contractor: L+M Development
Applicator: Acies Group, LLC, M&A Projects Inc., AA Construction
Architect: OCV Architects
Distributor: Sto Eastern

Sto Corp. products revived the former Ocean Village (now the Arverne View), a low-income complex in NY, by enhancing its energy efficiency, durability, and curb appeal: 

Sto Products:

• StoTherm® ci Lotusan®: Exterior continuous insulation wall system
• StoLit® Lotusan®: Tintable ultra-hydrophobic textured wall finish with superior self-cleaning properties
• StoGuard®: Fluid applied air and water-resistive barrier
• StoColor® Acryl Plus and StoColor® Silcolastic (on its balcony)

Sto Corp Products for Enhancing Energy Efficiency and Resilience

StoTherm® EIFS cladding systems integrate continuous insulation (CI), air and water-resistant barriers, and numerous textured finishes to create high-performance, sustainable wall cladding. The durable and unique systems maximize curb appeal and save money through lower energy bills. Impressively, architects and contractors and architects have used our products worldwide for decades for new construction and renovations.

StoTherm®ci GPS

Durable, high-performance, energy-efficient StoTherm ci GPS EIFS wall system provides up to R56 continuous exterior insulation. It incorporates a StoGuard Air and Water-resistive Barrier (AWRB), and high-performance Sto finishes in a fully tested wall cladding system.

StoTherm ci MVES

StoTherm ci MVES (masonry veneer engineered system) in natural stone, ceramic tile, or manufactured stone meets applicable building code requirements. It incorporates air and water-resistant barrier and continuous exterior insulation with Sto’s high-strength masonry veneer adhesive.

StoTherm® ci

StoTherm® ci Wall Systems combine continuous insulation, moisture, drainage, and air barrier to ensure an energy-efficient and durable wall system to save money on repairs, utilities, and maintenance. In addition, sustainable StoTherm® ci Wall Systems enhance indoor comfort and air quality. StoTherm® offers various textured finish options to meet your aesthetic and architectural needs.

StoTherm® ci Mineral

The StoTherm® ci Mineral EIFS System includes a non-combustible, mineral wool exterior CI and continuous air and water-resistant barrier with Sto’s high-quality finishes to create an advanced cladding assembly. 

StoTherm® ci XPS

Durable and high-performing StoTherm® ci XPS includes high R-value extruded polystyrene insulation into the wall system and Guard® fluid-applied water and air-resistant barrier to create water and airtight air walls, ensuring thermal efficiency and durability. 

Financial Incentives for LL97 Compliance

To help commercial building owners comply with LL97 and reduce carbon emissions, New York City established programs and services through NYSERDA and local utilities:

• The New York State Affordable Multifamily Energy Efficiency Program (a combined effort of the New York State Energy Research and Development Authority and Joint Utilities of New York) offers incentives for installing energy-efficient equipment and technology in affordable multifamily buildings with five or more units. 
• The Multifamily Buildings Low-Carbon Pathways offer incentives ranging from $700-$5,000 per installation of low-carbon upgrades. 
• The NY-SUN program will help New Yorkers access solar energy and lower their energy costs with incentives per watt through approved NY-SUN contractors. 
• The NYC Accelerator PACE Program offers financing options for owners of multifamily buildings with three or more units. 
• The Clean Heating Fuel Credit gives cooperatives and condominiums credits, or cash rebates 
• The Con Edison Multifamily Energy Efficiency Program offers financial incentives for approved equipment upgrades for residential multifamily buildings with five or more units. 
• The NYS Affordable Multifamily Energy Efficiency Program provides energy-efficient incentives of up to $2,000 per dwelling unit, if qualified. 

New York City’s Local Law 97

Reducing greenhouse gas emissions through compliance with LL97 will create a more sustainable, productive, and healthier environment for future generations. In addition, lower emissions can increase a building’s resale value, reduce operating costs, and contribute to longer tenant retention. 

The first round of carbon emission limits for qualified covered buildings starts in 2024, with compliance periods lasting through 2050. For free assistance on complying with LL97 on time, to avoid fines, and help with energy efficiency and renewable energy upgrades, contact NYC Accelerator. 

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While stucco facades as a whole weigh on average 142 pounds per square foot, one layer of a brick facade weighs about 509 pounds. As a lighter alternative to stucco and brick, fiber cement facade weighs 2.5 pounds per square feet. However, the problem is that it remains more delicate and, therefore, less durable and can only be used in specific locations.

This leads to the necessity of a profound lightweight facade option—one weighing 8–10 pounds per square foot on average—that provides style, durability, and function  simultaneously.

Modern Lightweight Facade Options with Sto Corp.

Sto Corp’s lightweight facade options can help architects and builders meet their projects’ aesthetic and performance challenges for commercial, residential, industrial, and institutional building projects. The design, details, and engineering of StoTherm® ci exterior insulation and finish system (EIFS) facades create a high-performing, eye-catching system that saves energy and stays attractive for years. StoTherm® ci improves indoor comfort and air quality while maintaining maximum curb appeal and lowering overall life-cycle costs.

Lightweight StoTherm® EIFS cladding systems combine continuous insulation, StoGuard® air and water-resistant barrier, and drainage to protect against moisture infiltration and enhance energy efficiency. Architects and builders can achieve various aesthetic goals for new and retrofit construction using Sto finishes, including StoCast resin-cast shapes, StoSignature®, and Sto Specialty Aesthetic Finishes.

StoTherm® ci EIFS Creates a Net Zero Energy Home 

David Peabody of Peabody Architects chose StoTherm® ci EIFS for its lower installation costs than high-pressure laminate panels and traditional mineral wool batts to meet the Passive House design principles. They also utilized Stolit® Lotusan®, a super hydrophobic textured finish with self-cleaning properties, to create a clean, crisp, appearance to achieve the homeowner’s and architect’s aesthetic vision.

Click here to download this case study today for free.

Complete Aesthetic Freedom with Sto Finishes

Sto finishes offer architects a wide variety of textures, shapes and color options to enhance the building’s design and blend in with the surrounding environment for new and retro projects. Sto manufactures its finishes to the highest standards to create durable finishes that resist dirt and water, protect the building, and enhance its curb appeal and value while achieving the desired aesthetic, including wood, brick, stone, stucco, and concrete.

StoCast – Custom Cast Resin Shapes

Lightweight, flexible, prefabricated StoCast resin cast shapes mimic natural textures, such as bricks and wood, while integrating enhanced performance qualities. Builders and architects can use SoCast products on various Sto-engineered wall cladding systems.

Benefits of StoCast Resin Shapes

Sustainable

StoCast offers lightweight, thinner cladding options than traditional claddings, to significantly lessen energy used in manufacturing and transportation and reduce structural waste and load. StoCast also lacks silica which makes it safe to handle. 

Quick to Apply

Fast and easy-to-apply prefabricated StoCast shapes do not require specialized training. In addition, StoCast shapes do not require fasteners, which speeds up the application process in the field or offsite construction.

Low-Maintenance and Durable

The durable, UV-resistant coatings and finishes used to make StoCast products do not warp, chip, or effloresce (like their traditional counterparts), which minimizes maintenance and recoating needs.

Perfect for Multi-Cladding Aesthetic Designs

StoCast products combined with traditional Sto finishes and used with Sto’s engineered wall systems can achieve various looks without complex transitions, to help ensure the continuity and compatibility of all the building envelope’s control layers.

StoCast Brick

For over 40 years, lightweight StoCast Brick has created beautiful natural brick designs. 

Benefits and features of StoCast Brick include:

• Sustainability: StocCast Brick uses significantly less energy for manufacturing and transportation than traditional brick. In addition, StoCast Brick lacks silica and dust which makes it safe to handle.
• Aesthetics: StoCast Brick offers 30 standard colors plus project-specific colors, patterns, and textures, along with numerous flexible shapes to achieve unique designs 
• Easy-to-Install: StoCast Brick comes in preformed shapes that are adhered to substrate and can be easily cut using shears.
• Low-Maintenance: StoCast Brick and its adhesive are cement free which will reduce the risk of efflorescence.
• Lightweight: Lower structural requirements and reduce transportation and shipping costs versus traditional brick.

StoCast Brick for Mixed-Use Building

Architect: Nick Swerdfeger Architects
General Contractor: Wilkinson Construction Services Inc.
Wall Panel Engineer: SkyRise Prefab Building Solutions

Panel Type: StoPanel® Classic NExT ci, StoCast Brick and StoSignature® Stone

The design intent for the 109 King Street project was to match the look and feel of the heritage brick facades on nearby historical buildings. Large windows with very little panel surface area created unusual design challenges. The use of StoCast Brick accommodated the large windows that offered no room to support a heavy wall of traditional brick without compromising the desired aesthetic.

StoCast Wood

Lightweight, flexible StoCast Wood delivers a natural wood appearance with resin-cast wood grain planks. Builders and architects can install StoCast Wood over Sto engineered building enclosure systems, concrete, stucco, concrete masonry walls, ceilings, and soffits.

Benefits and Features of StoCast Wood include:

• Aesthetics: StoCast Wood offers architects design flexibility with 45 different wood grains, non-repeating patterns, and flexible planks to achieve unique designs. In addition, the planks can be stained with StoColor® Wood Stain, available in 25 standard colors in glossy or matte finish, or may be coated with any of Sto’s high performance architectural coatings.
• East to Apply: Builders can easily cut with shears and attach preformed planks to the substrate with adhesive without fasteners.
• Sustainable: StoCast Wood uses significantly less energy for manufacturing and transportation than natural or engineered wood. 
• Low-Maintenance: Durable, reinforced StoCast Wood acrylic planks won’t chip, fade, or warp.

StoCast Wood for The B-Line Condominium Development 

General Contractor: Skyrise Prefab Building Solutions
Architect: John Romanov | Romanov and Romanov Architects
Applicator: Skyrise Prefab Building Solutions

The B-Line condominium development project had several challenges to overcome in order to meet the demands of the client:

• The need to accommodate a complicated design with multiple finishes
• The client/developer desired a continuous insulation solution 
• A tight, constricted job site

The StoPanel® Classic NExT ci panel system with Sto’s nearly endless aesthetic selections provided a complete solution to these challenges. The use of a StoPanel Classic NExT ci system with StoCast Wood and StoCast Brick created the desired aesthetics easily on one continuous system without the need to concerns of challenging transitions.

StoSignature®

StoSignature® makes it easy to create unique aesthetics with an endless blend of customized and high-quality color, texture, and profile finishes applicable to any Sto tested and trusted engineered wall system. 

• StoSignature® Impression Finishes subtly evoke the impression of other materials, like stone, brick, wood, and concrete. 
• StoSignature® Texture utilizes various aggregate sizes to create stippled or rilled textures: linear, fine, or rough. 
• StoSignature® Color offers architects an elaborate color system for complete design freedom. There are subtly tinted or bold colors, transparent or stain, for an endless variety of combinations of tone and texture accents that highlight the unique surface structure of the facade.

Learn more about StoSignature at https://www.stocorp.com/stosignature/.

StoSignature® Stone and Lightweight EIFS 

Location: New York, New York USA
Building Type: Hospitality
System Type: Aesthetics, EIFS
Systems & Products: EIFS, Stolit Lotusan, StoSignature Stone, StoTherm ci
Construction Type: New
Construction Method: Field-Built
Case Study: Click Here

The slender 32-story tower, designed by Nobutaka Ashihara Architect P.C. and developed by Lexin Capital, is a striking sight. Its abundance of smoky glass windows alternates with vertical strips that have the look and feel of traditional limestone. The stone at the building’s base is comprised of two-inch manufactured limestone panels, while the cladding on the upper stories of the 300-foot building consists of StoTherm® ci Lotusan® with StoSignature® Stone to achieve the limestone aesthetic. “Using the StoSignature Stone application technique with Stolit Lotusan finish gave us the ability to mimic other cladding types,” said Anjo Duffy, project manager with ECI Contracting in Mount Vernon, New York. “StoTherm ci Lotusan with the StoSignature Stone aesthetic proved easier and lighter to work with, and there was no on-site engineering required.

Specialty Aesthetic Finishes

Sto Specialty Aesthetic Finishes offer endless design possibilities with cost savings and long-term performance. These lightweight finishes by Sto reduce structural requirements and require fewer specialty trades, further reducing costs of construction.

Trowel-applied, lightweight StoCreativ® Granite looks like polished or cut granite. Builders can use acrylic-based, durable, low-maintenance StoCreativ® Granite for interior and exterior wall finish for renovation and new construction.

StoCreativ® Lux combines the depth and texture of natural stone with reflective material’s luster at a fraction of the cost of real metal or stone. Architects can choose from six looks to create durable and intricate architectural shapes. Builders can use lightweight and trowel-applied StoCreativ® Lux for exterior and interior applications.

Sto Decocoat is known for its incredible durability and low maintenance. Coming in 32 different colors, the advanced wall coating is engineered to perform exceptionally well in areas of high-traffic. Sto Decocoat is easy to clean and easy to patch.

Available in 15 different colors, StoColor® Metallic can be applied over smooth or textured surfaces, creating a custom metallic appearance at a fraction of the cost of metal panels.

Although Stolit® Milano is very fine, sandable and is an extremely workable finish for interior or exterior wall surfaces. Having the ability to yield more coverage than other products on the market, Stolit® Milano can be used for a variety of decorative textures, ranging from fine grit to ultra smooth metallic.

Often used over existing EIFS, stucco, or Sto finish, StoTique is a stain used to achieve mottled and variegated effect. Not to mention, it can be used for interior or exterior coating, labeling it as a versatile coating both in both decorative design and function.

As an acrylic-based interior and exterior wall finish, Sto GraniTex™ is durable and requires little maintenance, making it an excellent choice for construction and renovation projects. It is also available in a range of color combinations to help create the aesthetic qualities of natural stone. Architects and builders can apply this as a finish  coating for Sto cladding systems.

Case Study: 309 East Paces Ferry Rd

Location: Atlanta, Georgia USA
Building Type: Mixed Use
System Type: Aesthetics, Prefabricated Wall Panels
Systems & Products: StoCreativ Granite, StoPanel Classic NExT ci, StoSignature Brick
Construction Type: Renovation
Construction Method: Prefabrication
Case Study: Click Here

Originally having an outdated appearance and building structure, the 309 East Paces required modifications to help it withstand the test of time—both physically and aesthetically. Because brick and granite were part of the design choices made for the building’s upgrade, StoSignature®  Brick and StoCreativ Granite finishes were used to help the designers and architects complete a modern exterior appearance in record time—one that could endure decades more of exterior intolerances.

Sto Lightweight Facade Options For Your Building’s Exterior

Sto Corp’s lightweight, durable, energy-efficient facade options will help you meet your project’s aesthetic and performance challenges. StoTherm ci creates a high-performing, eye-catching system that saves energy and stays attractive for years. StoTherm® ci improves indoor comfort and air quality while maintaining maximum curb appeal and lowering overall life-cycle costs. Sto finishes, including StoCast, StoSignature®, and Sto Specialty Aesthetic Finishes, will help you achieve all your aesthetic goals!

Contact the team of Sto professionals today at (800) 221-2397 for more on Sto’s lightweight facade options.

The post Lightweight Facade Options appeared first on Sto Corp..

A tight building envelope relies on keeping it air and weather-tight. The use of a quality sealant should be used as perimeter weather seal around windows, doors, and other through wall penetrations, thermal expansion and contraction joints, and control joints to prevent air and moisture infiltration. Sto’s sealant, StoSeal STPE Sealant provides a high-movement, low-odor, non-sag sealant for use in new construction or renovation projects from a single manufacturer.

Why Are Sealants Needed?

EIFS systems, like all wall claddings, require sealants around doors, windows, service openings, and between dissimilar materials to help ensure a water-resistant and airtight building envelope. Sealants also absorb thermal expansion and contraction.

Sealant Issues with EIFS Cladding

Inadequate application or missing sealants to EIFS or any claddings will provide a path for unwanted air and moisture into EIFS cladding that can lead to premature deterioration and failure of the EIFS finish coat, which typically is not covered by manufacturers’ warranties.

Failures commonly occur when the sealant is applied to the finish coat instead of the mesh-reinforced base coat, the sealant is not regularly inspected after reaching its life expectancy, commonly five to ten years, if the sealant was applied over a dirty substrate, the wrong modulus was used, and more.

Properly Sealing EIFS Projects

The airtightness of the EIFS system’s joints depends on the sealant’s adhesion, durability, and compatibility with the EIFS. Therefore, when constructing an EIFS system, it is vital to use a high-quality sealant, like StoSeal STPE™ Sealant. In addition, applicators must follow the manufacturer’s application instructions to achieve the EIFS project’s performance requirements and avoid sealant failure. 

Why Use STPE Sealants for EIFS Projects

High-performing EIFS sealants offer flexibility, durability, sustainability, and ease of application. The building industry utilizes several sealants, including polyurethane, silicone, and Silyl Terminated Polyether (STPE).

Polyurethane and silicone lack characteristics that impact their effectiveness and durability: 

• Polyurethane sealants lack adequate weather resistance.
• Silicone’s bonding properties may fail under strong shear forces.
• Non-sustainable, non-recyclable polyurethane and silicone break into unhealthy chemicals if heated past their maximum operating temperatures. 

Fortunately, sustainable and fast-curing STPE sealants combine silicone’s weather resistance and polyurethane’s strength to produce a long-lasting sealant with superior adhesion, strength, and flexibility. Fast-curing STPE sealants also maintain their color by minimizing exposure to debris and dust, which can cling to the sealant.

Silyl Terminated Polyether (STPE) Sealants for EIFS Projects

A tight building envelope keeps outside elements (e.g. air and moisture) from infiltrating a structure. Correctly applying a high-performing STPE joint sealant is a vital step towards weatherproofing an EIFS building’s exterior and protecting its health and integrity. 

Silyl Terminated Polyether (STPE) sealant technology provides several superior high-performance features that will contribute to a long-lasting, energy-efficient EIFS system:

Durable and long-lasting STPE sealants for EIFS

• Durable and Weather Resistant: STPE sealants perform well in most weather conditions and at low temperatures (unlike polyurethane sealants) with little adhesion failures, cracking, splitting, or discoloration.
• Flexibility: STPE sealants’ elongation characteristics can endure structural movement and withstand substrate vibrations or oscillations more effectively than silicone sealants.
• UV Resistant: STPE sealants will not crack or yellow after extended periods of UV-light exposure, unlike polyurethane sealants.
• Non-Reactive: STPE sealants will not corrode or oxidize metals.
• Storage Stability: STPE sealants have an excellent shelf life when not exposed to moisture.
• Cold Resistant: STPE sealants retain their properties to -50°F (-45°C).
• Adhesion: STPE sealants have excellent cohesive strength that adheres more effectively to many substrates, like metals, concrete, wood, plastics, and ceramics, compared to polyurethane and silicone sealants.

STPE sealants for EIFS Ease of Application

STPE sealants may not require priming on most substrates and can create a continuous smooth surface. In addition, you can paint STPE sealants after 24 hours. 

Environmentally-Friendly

Recyclable STPE products contain extremely low or no VOCs, unlike other sealants prone to off-gassing, like polyurethane and silicone, which will break into unhealthy chemicals if heated past their maximum operating temperatures. 

StoSeal STPE™ High-Quality, Versatile Adhesive Sealant

StoSeal STPE™ Sealant from Sto® Corp. is a high-performing, low-odor, isocyanate-free, one-part hybrid sealant with a VOC content of 8 grams per liter. It is a durable, flexible, low-modulus, non-sag sealant with excellent moisture and weathering resistance.

StoSeal STPE™ Sealant bonds to most building materials (masonry, concrete, wood, stone, fiber cement, vinyl, stucco) and can seal gaps and joints around floor lines, wall penetrations, fixtures, etc., for a tight building envelope.

The superior adhesive properties of StoSeal STPE™ Sealant work effectively with 

StoVentec®, StoTherm® ci, StoPowerwall®, and StoQuik® exterior wall systems 

and with StoGuard® Air and Water-Resistive Barrier systems for vertical above-grade building restoration applications and new opaque walls.

The Best Sealant for EIFS – StoSeal STPE™ Sealant

Applying StoSeal STPE™ Sealant for EIFS projects, according to the manufacturer’s instructions, will contribute significantly to creating a tight building envelope.

When correctly applied, StoSeal STPE™Sealant produces a durable, long-lasting, sustainable sealant that contributes significantly to a tight building envelope.

For more on the importance of sellers for EIFS projects and the benefits of StoSeal STPE™, contact our professionals at (800) 221-2397!

The post Importance of Sealer for EIFS Projects appeared first on Sto Corp..

• Quality-built and installed EIFS, like StoTherm® ci Wall Systems, contain continuous insulation that minimizes thermal bridging and a fluid-applied moisture and water-resistive barrier to create higher-performing buildings with less energy consumption, and also contains a drainage plane.
• Durable EIFS also complies with NFPA 285 (referenced in 2021 IBC Section 1403.5) to minimize fire spread, vertically and horizontally.
• EIFS offers numerous aesthetic choices and design flexibility.

Outdated ideas about EIFS, however, make some in the building community question the validity of modern EIFS systems as trusted and proven building products. These outdated attitudes may also affect the ability of building owners and contractors to get EIFS insurance.

Myths About EIFS Systems and Understanding Modern Systems

Misconceptions about EIFS primarily stem from issues that occurred over 30 years ago when EIFS systems were called Barrier EIFS. Modern (drainable) EIFS has proven to be a moisture-resistant, low-maintenance, lightweight, inexpensive, durable, and energy-efficient exterior wall cladding system. 

NOTE: The long-term success of an EIFS system requires an experienced, qualified installer who follows the manufacturer’s instructions. As with any wall system, correct design, detailing and installation is critical to the longevity of an external cladding solution.

Myth 1: EIFS does not drain water, which leads to moisture issues – False.

Barrier EIFS

Early EIFS was face-sealed (barrier) EIFS, with an insulation board fastened to the structural wall surface, typically made of gypsum. Unfortunately, barrier EIFS did not include the capability to drain water that may get into the wall system. The lack of drainage and the use of moisture-sensitive sheathing (such as wood-based) made buildings and homes built with barrier EIFS more prone to rot, mold, and insect problems. 

Development of Drainage EIFS

By the mid-1990s, in response to these problems, the International Conference of Building Officials (ICBO) and EIFS Industry Members Association (EIMA) implemented tighter requirements to stop moisture issues in EIFS. The requirements led to the development of drainable EIFS. 

Drainable EIFS has a secondary moisture barrier and a drainage plane that allows water to escape, created by the ribbons of adhesive used to adhere the insulation. This drainage plane significantly reduces the moisture issues with EIFS. Furthermore, the EIFS insulation thickness should prevent the interior air from reaching the dew point, to minimize condensation within the wall system.

The International Building Code (IBC) recognizes drainable EIFS as an allowable building material and also mandates the application of a water-resistive barrier to EIFS. The IBC mandates the application of a water-resistive barrier to EIFS, like Sto’s StoGuard family of products.  In addition, drainage EIFS creates an energy-efficient wall system that meets the requirements of the American Society of Heating, Refrigerating, and Air-Conditioning Engineers ASHRAE 90.1.

Myth 2: EIFS isn’t as good as traditional stucco – False.

Grand Concourse Academy, Bronx, New York, USA

Traditional stucco and EIFS both create an aesthetically pleasing, long-lasting exterior facade. Both also offer about 70 percent ROI.

• Traditional stucco assemblies are mechanically fastened and include natural ingredients, such as Portland cement, lime and sand basecoats (called Scratch & Brown coats) with acrylic or cementitious finishes. These assemblies also use metal laths and weigh between 10-12 lbs/ft2.
• Drainable EIFS includes an air and water-resistive barrier, adhesive, continuous insulation, fiberglass mesh, basecoat, primer and finish. EIFS is approximately eighty percent lighter than traditional stucco at about 2 lbs/ft2 and is adhered to the substrate in the majority of cases.
• EIFS includes synthetic materials that are applied in coats over rigid foam insulation, a fiberglass mesh, and an acrylic finish, which creates a product 80 percent lighter than traditional stucco.

EIFS vs. Traditional Stucco

• Lightweight EIFS offers more flexibility, durability, and energy efficiency (R-value between 4 and 5.6) compared to traditional stucco. 
• Low-maintenance EIFS only requires regular cleaning, while traditional stucco often needs patching, caulking, and repainting.
• EIFS resists cracking, while traditional stucco being cement-based typically will have hairline cracks.

Myth 3: Builders only use EIFS on low-cost projects – False.

Lido Beach Towers, Long Island, NY, USA

Modern, drainable EIFS can accommodate all aesthetic and performance needs for new and retrofit construction, to help achieve superior design performance, flexibility, and sustainability levels. Architects and builders can use drainable EIFS for institutional buildings, distinctive hospitality structures, and homes – from high-end to low-cost projects.

Myth 4: EIFS is high maintenance and lacks durability – False

Fairfax City Net Zero Home

EIFS offers several low-maintenance and durable features:

• Simple to clean, EIFS requires only a low-pressure wash and a manufacturer-approved detergent.
• Advanced technology in finishes has allowed for the creation of self-cleaning finishes like Stolit Lotusan , making a more sustainable and longer-lasting facade.
• Durable EIFS resists cracks and crumbling resulting from shifting foundations, thermal expansion, or freeze/thaw cycles. 
• The design and use of a high-impact mesh with EIFS creates a durable, high-impact facade.
• Drainable EIFS allows water to escape, to prevent structurally damaging mold growth.

Myth 5: EIFS is combustible – False

Because EIFS most commonly uses combustible foam plastic insulation, the systems are subjected and pass industry mandated standard test for ignitability, fire resistance, intermediate multi-story, and flame spread tests

• Fire-resistant EIFS passes major tests required by building codes for:
• Ignitability (NFPA 268)
• Fire resistance (ASTM E119)
• Intermediate multi-story fire test (NFPA 285)
• Full-scale multi-story, corner test (ANSI FM 4880). 

Myth 6: EIFS lacks aesthetic appeal – False

The Greenhouse Dispensary – Skokie, Illinois, USA

EIFS comes in nearly any color, texture or aesthetic including brick, wood, granite, stone, concrete, stucco and more. In addition, the use of an EIFS system easily allows for the use of multiple aesthetics without concern for transition between materials.

StoTherm® ci Wall Systems Drainable EIFS 

Durable and distinctive StoTherm® ci cladding systems combine continuous insulation, fluid-applied air and water-resistive barrier, drainage, and numerous color and textured finishes to create sustainable, high-quality wall cladding. The durable and unique system maximizes curb appeal and saves money through lower energy bills. Sto® offers five StoTherm® ci Systems and four StoTherm ci Hurricane Impact Systems that comply with Miami-Dade Notice of Acceptance.

StoTherm ci Systems

Energy-Efficient StoTherm®ci GPS

StoTherm® ci GPS provides up to R56 continuous exterior insulation. It includes a StoGuard® fluid-applied air and water-resistive barrier, and high-performance Sto® finishes in a fully tested wall cladding system. GPS offers thinner walls thanks to higher insulation r-value, long lasting and stable r-value of 4.7inch, and reduced green gas emission since it does not contain any fluorocarbon blowing agents.

StoTherm® ci Mineral 

StoTherm® ci Mineral System includes non-combustible, mineral wool exterior CI and continuous moisture and air barrier with Sto® quality finishes to create an advanced cladding assembly. 

StoTherm® ci 

StoTherm® ci combines the StoGuard® waterproof air barrier system and StoTherm® to protect against moisture infiltration and enhance energy efficiency. StoTherm® ci uses EPS with a long lasting and stable r-value of 3.6/inch

StoTherm ci MVES

StoTherm ci MVES (masonry veneer engineered system) in ceramic tile, manufactured stone, and natural stone achieves applicable building code requirements.

StoTherm® ci XPS

StoTherm® ci XPS contains high R-value extruded polystyrene insulation and StoGuard® fluid-applied moisture and air barrier, to produce water and airtight walls to help ensure durability and thermal efficiency. XPS offers thinner walls thanks to higher insulation r-value of 4.9.

StoTherm® ci Hurricane Impact Systems

StoTherm® ci 1177-SM exterior wall cladding combines a seamless, fluid-applied air and moisture barrier with advanced drainage capabilities over glass mat gypsum sheath. StoTherm® ci 1177-SM achieves the testing requirements for Small Missile impacts.

Durable StoTherm® ci 1177-LM

StoTherm® ci 1177-LM exterior wall cladding is a fluid-applied moisture and air barrier with continuous insulation, advanced drainage, and Sto® Armor Mat XX Mesh for reinforcement and impact resistance over glass mat gypsum sheathing. StoTherm® ci 1177-LM meets the testing mandates for small and large missile impact performance on 16-gauge steel studs with gypsum sheathing.

Energy-Efficient StoTherm® ci HI-LM 180

StoTherm® ci HI-LM 180 is a continuous insulation wall cladding that includes StoGuard® waterproof air barrier and StoTherm® insulated cladding and drainage over concrete masonry unit (CMU) substrates. StoTherm® ci HI-CM 180’s engineering achieves the testing requirements for small and large missile impacts.

High-Performing StoTherm® ci HI-PLY

StoTherm® ci HI-PLY exterior wall cladding integrates a seamless, fluid-applied moisture and air barrier with continuous insulation and advanced drainage capabilities over CDX exterior plywood sheathing. StoTherm® ci HI-Ply achieves the testing requirements for small and large missile impacts.

Sto® EIFS Products Debunk The Myths About EIFS Systems

The design, details, and engineering of StoTherm® ci EIFS systems offer a high-performing system that debunks the negative myths about modern EIFS systems. 

Drainable, low-maintenance, and non-combustible StoTherm® ci combines continuous insulation, fluid-applied air/moisture barrier, drainage, and attractive color and textured finishes to create moisture-resistant wall cladding with more durability and energy efficiency (R-value between 4 and 5.6) compared to traditional stucco. Builders can use our EIFS systems for all new and retrofit residential, commercial, industrial, and institutional construction levels. 

For more about EIFS systems and understanding Sto’s modern systems, don’t hesitate to contact Sto® professionals at (800) 221-2397!

The post Myths About EIFS (Exterior Insulation and Finish Systems) and Understanding Modern Systems appeared first on Sto Corp..

Builders can choose from several insulation materials, including Expanded Polystyrene (EPS), Extruded Polystyrene (XPS), Mineral Wool, and Graphite Polystyrene (GPS). Understanding the features and benefits of each of the different insulations will help you choose the best high-performing product for your building project.

Graphite Polystyrene Insulation

Manufacturers produce graphite polystyrene insulation (GPS) like EPS, but with the infusion of high-purity graphite particles into the polystyrene beads, which creates Neopor beads. Neopor gives GPS insulation a dark gray appearance and a greater R-value (4.7) than traditional EPS insulation products. Builders can use GPS insulation on wood or steel frame construction.

Benefits and Features of GPS Insulation

• Increased Thermal Resistance: The graphite particles reflect and absorb radiant energy, which slows heat transfer and produces 18 percent more insulation capacity than EPS. 
• Increased Board Strength and Flexibility: Manufacturers laminate the foam with a reflective film, which increases its strength and flexibility.
• Moisture Resistance: The reflective, micro-perforated laminated surfaces give the panel a high water vapor permeance (perm rating of up to 5.0), which reduces the chance of trapped moisture. 
• Improved Job Site Efficiency: The larger panels and laminated film enhance job site efficiency and lessen labor costs.
• Design Flexibility: Manufacturers can form GP into many different shapes during manufacturing.

Sto GPS Board

Builders and architects can use Sto GPS Board in StoTherm® ci GPS and StoPowerwall® ci systems. It offers the following benefits and features:

• Energy Efficiency: Sto GPS Board provides continuous exterior insulation for reduced energy consumption and cost. The higher R-value than standard EPS allows for thinner wall sections.
• Sustainable: Sto GPS has lower global warming and zero ozone depletion potential due to their manufacturing process not using fluorocarbon-blowing agents (HFC, HCFC, or CFC). Recyclable GPS boards limit their environmental impact.
• Moisture Resistance: The water vapor semi-permeable of Sto GPS Board aids in drying water in walls.

Extruded Polystyrene (XPS) Insulation

Extruded polystyrene offers closed-cell insulation for interior and exterior walls for new construction and remodeling. The manufacturing of XPS insulation involves combining polystyrene crystals with additives and a gas-blowing agent. An extruding machine then mixes and melts the mixture into a thick liquid before processing it through a die. The die expands the liquid into foam, then shapes and trims it into rectangular or standard square boards. 

Benefits and Features of XPS Insulation

XPS High Compressive Resistance

The high compressive strength (15-100 psi) of XPS insulation can withstand high pressure, so that it is able to withstand 6,144 lbs ft2 with a maximum deformation of 10 percent. 

Sustainable

• Recyclable: 100-percent recyclable, which allows manufacturers to melt and reform the thermoplastic polystyrene resin into new XPS foam insulation.
• Energy-Efficient: XPS closed cell insulation gives it a high thermal resistance value to provide an R-value of 4.6 and 5.0, depending on their density, which makes it extremely energy efficient, to save energy in buildings and reduce CO2 emissions. 

Moisture-Resistant

• Moisture-resistant XPS has an absorption rate of 0.3 percent to resist moisture infiltration during and after application. XPS insulation offers freeze-thaw resistance to protect the insulation’s thermal performance and to prevent damaging and unhealthy mold. The low permeability makes it perfect for laundry rooms and other high-moisture spaces. 

Straightforward to Install 

Simple to apply, lightweight XPS insulation does not irritate the worker’s skin.

StoTherm® ci XPS

Builders and architects can use StoTherm® ci XPS in residential or commercial wall construction where energy efficiency, superior aesthetics, and air and moisture control are essential in the climate extremes of North America. StoTherm® ci XPS is an EIFS with drainage and continuous insulation wall system that integrates the StoGuard® air and water-resistive barrier, XPS insulation, and drainage to produce the following benefits and features:

• Aesthetic Versatility: StoTherm®ci XPS can achieve various aesthetic appearances like brick, wood, stucco, concrete or stone using Sto textured finishes, Sto Specialty finishes, or StoCast surface components.
• Energy-Efficiency: StoTherm®ci XPS continuous exterior insulation achieves R-5 per inch with no mechanical fasteners to lower cooling and heating costs.
• Fast Installation: StoTherm®ci XPS provides quick-set adhesive, with no mechanical fasteners, decreasing thermal bridging.
• Moisture Resistance: StoTherm®ci XPS’s continuous air and water-resistive barrier protects against mold and moisture issues.
• Code Compliance: Fully tested building code compliant StoTherm®ci XPS assembly is ICC-ES listed and evaluated.

Expanded Polystyrene (EPS) Insulation 

Lightweight expanded polystyrene (EPS) foam is a rigid, closed-cell wall insulation. EPS manufacturing involves expanding raw polystyrene beads with steam up to 50 times their volume. The beads go into a mold where steam and pentane further expand them to form a rectangular block. 

Benefits and Features of EPS Insulation

High Compressive Strength

The compressive strength of EPS insulation ranges between 10 – 60 psi that increases with density. 

The high compressive strength provides:

• Thickness recovery after excessive construction load exposures.
• Absorption of substrate irregularities.
• Absorption of the substrate and facing movement due to structural deflections and temperature changes.
• Sufficient subgrade reaction for effective load distribution.

Sustainable

• EPS does not contain toxic ozone chemicals like formaldehyde, hydrochlorofluorocarbon (HCFC), hydrofluorocarbon (HFC), and chlorofluorocarbon (CFC). 
• EPS has a thermal resistant R-value of 3.6 to 4.2, which saves energy and money.
• You can recycle EPS.  

Moisture-Resistant

• EPS boards are available in several densities to meet specific project needs, from 0.75 to 2.0 psi. 
• The tightly packed cells stop voids, contributing to EPS’s moisture resistance and making it suitable for wet environments. 

Installation Benefits

• EPS provides installation versatility by cutting quickly and accommodating unfinished interior and exterior walls for new construction and retrofits. 
• EPS is lightweight and simple to apply.

Sto EPS Insulation Board

Builders can use StoTherm® ci in residential or commercial wall construction where energy efficiency, superior aesthetics, and moisture and air control are crucial.

Rigid cellular Sto EPS Insulation Board offers several benefits and features for use in StoTherm® ci Wall Systems, an EIFS with drainage continuous insulation wall system.

•  Aesthetic Flexibility: Workers can easily cut, score, shape, and rasp lightweight Sto EPS insulation board.
• Energy-Efficient: EPS offers continuous insulation to achieve the required R-value or U-factor in wall construction when used in StoTherm® ci Systems.
• Long Lasting: Fully tested for fire exposure and durability in StoTherm® ci Systems.
• Code Compliance: Made by licensed Sto EPS Insulation Board molders per ASTM E2430 and ASTM C578 requirements for Type 1 EPS. 

Mineral Wool Insulation 

Mineral wool continuous insulation contributes to energy-efficient building design and non-combustible construction. Manufacturers typically use steel by-products (blast furnace slag) made of spent iron ore and limestone to make mineral wool. 

Manufacturers melt slag and rock in cupola furnaces at over 2,600℉ (1426°C), then spin the molten lava into fibers using high-speed spinning wheels and compressed air. The manufacturing process produces mineral wool fibers that can withstand high temperatures, which gives them excellent fire-resistant properties. Builders can apply mineral wool continuous insulation behind non-combustible and combustible cladding types ranging from glass panels (opaque), EIFS, masonry veneer, resin cast shapes, metal panels, and fiber cement.

Benefits and Features of Mineral Wool

• Non-Combustible: Mineral wool insulation will not burn or release hot gasses and harmful smoke during a fire, which makes it a superior choice for multistory construction. Mineral wool in cavity walls and open-joint facade systems can significantly minimize fire spread across a building’s exterior wall surfaces.

The ASTM E119 test determines the fire performance of building materials based on fire temperature and time. It illustrates that mineral wool remains intact after five hours and temperatures over 2,000℉ (1093°C). 

• Energy Efficient: Mineral wool insulation, with an R-value of 4.3 per inch, easily meets the specified R-value requirements of the ASHRAE 90.1 to prevent thermal bridging and create an effective R-value in a wall system. In addition, moisture exposure will not diminish mineral wool’s R-value, and declining temperatures cause mineral wool’s thermal conductivity to decrease, which enhances its R-value. 

• Moisture Resistance: The engineering of mineral wool repels and drains moisture in continuous insulation applications. The design of mineral wool can handle driving rain, condensation, and other moisture on the wall system. 

• Permeable: Air and vapor-permeable mineral wool CI (perm of 50) permits condensation/moisture/water within the wall cavity to dry towards the outside.

• Sustainable: Using slag allows mineral wool to achieve one of the industry’s highest recycled contents, which minimizes its environmental impact. After one month of use, one pound of mineral wool insulation saves the amount of energy used in its manufacturing.

• Sound Attenuation: Mineral wool products provide sound attenuation by absorbing and blocking sound between partition walls and floor/ceiling applications to enhance the indoor environmental quality for the structure’s occupants.

• Durability: Durable mineral wool repels water and resists UV rays, ice, rain, sleet, snow, and other weather-related events. 

StoTherm® ci Mineral Wool Insulation

StoTherm® ci Mineral incorporates a high density non-combustible continuous exterior insulation and a continuous air and water-resistive barrier with Sto high-performance finishes to produce an advanced wall cladding system. Builders can use StoTherm® ci Mineral in residential or commercial wall construction.

The StoTherm® ci Mineral EIFS System offers the following features and benefits:

• Non-combustible, mineral wool exterior CI is a thermal control layer that resists fire and above 2000°F (1093°C).
• It is a continuous-seamless air, water, and vapor-resistant barrier from a single source.
• Sto high-performance finishes come in multiple textures and unlimited finish color selections. 
• The Sto Thermo Dowel is a pre-assembled washer and fastener designed to minimize thermal conductivity.
• They include an EPS plug and can be countersunk and topped with a mineral wool cap to greatly minimize thermal bridging.

StoTherm® ci Mineral complies with vital fire standards for fire resistance and combustibility:

• ASTM E119: Maintains hourly fire resistance rating of non-load bearing steel frame concrete, concrete masonry wall assemblies.
• ASTM E84: Insulation has zero flame spread and smoke development.
• NFPA 285: System complies with requirements for use on all construction types without height limitation.
• NFPA 268: System does not ignite to radiant heat exposure and complies with mandates for use on all construction types without setback or height limitations.
• NFPA 220: Non-combustible insulation as defined by NFPA 220.

For more information on Sto systems and the various insulation options, contact a Sto professional today at (800) 221-2397 or via the website.

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Drainable EIFS includes an air and water-resistive barrier and a drainage plane that allows incidental moisture to exit the wall assembly. The drainage cavity is achieved by applying vertical ribbons of adhesive that adheres the insulation to the air and water-resistive barrier, providing an effective exit path for any incidental moisture that penetrates the wall assembly (ASTM E2273).

Not only can EIFS achieve most of the desired aesthetic styles, including brick, wood, stone, granite, stucco, metal and concrete. EIFS also allows for multiple finish options with the compatibility challenges associated with combining different building materials on a facade. Creating and accommodating different sizes, shapes, angles and configurations is another facet of the design flexibility that EIFS offers.

In addition to the cost of the EIFS itself, the lightweight nature of EIFS compared to heavyweight cladding like brick, precast, etc. can also reduce structural requirements, providing additional cost savings for the project.

EIFS systems offer a variety of insulation options – including GPS (graphite-enhanced, expanded polystyrene), mineral wool, EPS (expanded polystyrene), and XPS (extruded polystyrene) to create a high-performing, energy-efficient cladding.

Design of EIFS with Drainage

Unlike original EIFS, modern EIFS with drainage is not a barrier system. EIFS with drainage includes a sustainable cladding assembly with an air and water-resistive barrier, drainage-utilizing adhesive applied in vertical ribbons to create channels that allow for water drainage – and continuous insulation that lessens thermal loads on the building’s exterior wall and contributes towards current energy code goals and compliance. Durable EIFS also complies with NFPA 285 (referenced in 2021 IBC Section 1403.5) to limit vertical and horizontal fire spread.

EIFS Design Freedom with Sto Corp Products, Services, and Tools

Sto Corp. offers endless aesthetic options for drainable EIFS building enclosures. In addition, our Sto Studio professional services and tools (StoInspire, Sto Color, Aesthetic+Product Selector, and Finish Selector Tool) can assist you with facade materials, colors, and texture options to create attractive, high-performing, sustainable, and fully engineered cladding systems. 

Submit your project today, and let’s start working towards achieving your aesthetic visions and performance goals for your new construction or renovation project.

StoTherm® ci EIFS Wall Systems

StoTherm® ci EIFS cladding systems combine continuous insulation, and air- and water-resistant barriers to create sustainable, high-performance wall claddings that include drainage. The systems offer many colors and textured finishes, including brick, concrete, wood, traditional plaster, and stone, to achieve attractive and unique facades. Sto EIFS systems also offer a variety of insulation depending on the requirements for a specific project including: GPS, mineral wool, EPS, and XPS.  Durable and energy-efficient StoTherm® ci EIFS sustains maximum curb appeal and saves money through lower energy, maintenance, and repair bills. For decades, architects and builders have used Sto products worldwide to achieve their aesthetic visions for new construction. The Sto Wall Selector Tool can walk users through the decision process to determine the best EIFS system to meet their needs.

StoTherm ci GPS

1. Structural Wall Assembly
2. Air and Water-Resistive Barrier – Wall Membrane: Sto Gold Coat®
3. StoGuard® Detail Component – Sheathing Joints and Corners, Flashing and Rough Opening Protection, Penetrations: Sto RapidGuard®
4. StoGuard® Detail Component – Static Joints and Seams: Sto RapidGuard®
5. StoGuard® Detail Component – Dynamic Joints: StoGuard® Conformable Membrane
6. Adhesive: Sto TurboStick
7. Insulation: Sto GPS Board
8. Mesh: Sto Mesh
9. Basecoat: Sto BTS® Plus
10. Primer: StoPrime® Sand
11. StoTherm® ci Finish Options: StoTherm® Finish Selector

EIFS Creates Magnificent Curves and Colors 

The Center of Hope Hill Country Community Clinic of Redding, CA, chose a StoTherm ci EIFS system due to its lightweight nature and the ability to design straight and curved walls. In addition, the architect utilized Sto’s tools to integrate their color palettes into his design software, which allowed him to create an accurate color representation of the finished structure.

The clinic and architect were also impressed with Sto’s easy installation and sustainability features, including:

• Durability: Long-lasting exterior enclosure resists damage from hot and cold temperatures, moisture, wind, and other external forces.
• Energy-Efficiency: The continuous insulation of the EIFS system creates an energy-efficient building enclosure in a climate that experiences very warm summers and cool, wet winters.

Create Multiple Aesthetics with EIFS

Sto Products: StoTherm®ci, StoCast Wood, Sto® Essence Finish
Architect: Klingner & Associates, P.C.
Applicator: Burgener Plastering, Inc.
Contractor: Hein Construction Co.

For crafting the new River Bend Food Bank, priority number one was taking the previously uninsulated block building and turning it into a high-performing, sustainable structure. The north and east facades featured brick walls with masonry backup, while the south and west walls were all cement masonry units (CMU). According to architect Melissa Goodwin with Klingner & Associates, the CMU walls were in “pretty bad shape.” The original walls were repaired and repointed to create a suitable substrate for the application of the continuous insulation component of the EIFS system on a previously uninsulated block building. 

The StoTherm ci is finished with 12,000 square feet of Sto’s Essence, an acrylic finish with dirt pick-up resistance in a Medium Sand texture in two colors, Jersey Cream and Superior Bronze. “That is one of the best things about EIFS for remodeling, you can do so much from a visual perspective with these types of systems,” said Chuck Burgener (Burgener Plastering, Inc.). However, the architects designed the building for a different type of cladding for the two main entrances on its northeast corner. Originally searching for a cement board product, architects instead settled on StoCast Wood, which enabled them to deliver this time-honored and desirable aesthetic and something that was available from the same manufacturer.

Sto’s exterior wall systems are equipped with the same control layers behind the cladding materials, all of which are designed to keep buildings dry and thermally efficient. Therefore, with Sto, architects can design high-performing structures with contemporary visual appeal even when numerous cladding materials are required, which is now becoming a mandate in cities across the country. For River Bend Food Bank and FISH of Galesburg, architects were able to specify multiple claddings from a single supplier. This eased the specification process and reduced the number of trades needed on site to install materials, saving both time and money

Stunning Curves 

The Greenhouse Dispensary 

Sto Products: StoTherm® ci and Stolit® Milano
General Contractor: Pacific Construction
Applicator: G & J Services, Inc.
Architect: Camburas & Theodore, Ltd.

To renovate this nearly 70-year-old Greenhouse dispensary, the building team used the StoTherm® ci EIFS system to create stunning, flowing curves, then applied a Stolit® Milano finish to make the building shine. 3D modeling and precision laser cutting of the complicated forms allowed the structure to come together in pieces to produce a unique design. 

StoTherm ci is noted for its enhanced energy efficiency and protection against moisture intrusion. To be sure, it serves those purposes in this project, but that is not what is noteworthy here. What’s groundbreaking was the way the Sto EPS insulation board component of the system was used to create the design’s organic shapes. Traditionally, those shapes would have been rendered by skilled artisans, working tediously with their hands, literally shaving away material until the desired forms emerged. Instead it was done with incredible efficiency and accuracy in the applicator, G & J Services’ facility. Drawings from Camburas Theodore were converted into 3D computer models, and then, using CNC laser cutting technology, G & J shaped the foam, outputting it in two-foot sections which were dutifully numbered and delivered to the jobsite. Once there, it was a simple matter for the applicator to assemble them following the original design. A smooth texture adds to the free-flowing feel of the facade. It was achieved with a Stolit Milano finish in bright white that makes the flowing organic forms pop even more, especially when illuminated at night by white LED lights. The overall effect of the building is soothing and striking.

High-Rise Construction with EIFS

New York’s Hyatt House 32-story hotel construction project presented several challenges, including the building’s irregular concrete substrate and design, which made it necessary to work on one floor at a time. Fortunately, StoTherm® ci Lotusan® with the StoSignature® Stone (and the help of the Sto engineer and distributor) provided a solution to the building’s irregular surface conditions. The expanded polystyrene utilized in the StoTherm ci Lotusan system allowed the construction team to make custom adjustments in the insulation thickness to account for the uneven concrete substrate.

Georgia King Village

L+M Development chose StoTherm® ci Essence to upgrade the nearly 50-year-old, 18-story Georgia King Village affordable housing’s building envelope. The complex was in distress needing various improvements to both individual units and the structural integrity. Rehab priorities included installing a new facade/envelope/exterior to replace the uninsulated precast concrete facade. Heat and cold were leaking through the walls, and a livable temperature could not be properly maintained. As a result, the Georgia King Village residents were suffering. Utilizing a StoTherm ci system helped to create a more efficient, comfortable, and attractive structure with improved structural integrity. 

Unique Colors

Grand Concourse Academy in Bronx, New York

Sto Systems & Products: StoGuard®, Sto Armor Mat Mesh, Stolit® Lotusan, StoSignature Stone, StoTherm® ci Lotusan®, StoTurboStick
Applicator: Masucci Construction
Developer: Turner-Agassi Charter School Facilities Fund
General Contractor: McGowan Builders
Building Envelope Consultant: Frank Seta & Associates
Architect: LUBRANO CIAVARRA Architects

The Grand Concourse Academy Charter School included the StoTherm® ci Lotusan® wall system in the building’s design to achieve two challenges: performance and unique colors. The textured finish and brilliant color choices created an eye-catching and impressive building. In addition, the high-performing protective system ensures it will stand up to wind, rain, debris, etc.

Achieving Design Freedom with Sto EIFS Wall Systems

Sto offers many drainable EIFS wall system options to fit all your aesthetic and performance requirements for new construction and renovation. Utilizing Sto products for your projects will ensure you achieve your aesthetic visions, performance requirements, and sustainability levels.

Sto EIFS cladding systems combine continuous insulation, air and water-resistive barriers, drainage, and many textured finishes and colors to create a sustainable, high-performance wall system.

For more on design freedom with EIFS construction, don’t hesitate to contact the Sto professionals today at (800) 221-2397!

The post Design Freedom with Modern, Drainage EIFS appeared first on Sto Corp..

The system provides architects, builders, and developers an ideal solution for restoring the exterior facade of commercial, residential, industrial, and institutional buildings while also improving energy efficiency and durability of the building and allowing for a wide variety of facade aesthetics. EIFS systems also pass ignitability, fire resistance, and intermediate multi-story (NFPA-285) and full-scale multi-story corner tests, both meeting and surpassing the test’s standards.

The design flexibility of EIFS, with a wide range of colors and textures, including wood, brick, stone, concrete and traditional plaster, allows architects to achieve the aesthetic requirements of most restoration projects.

StoTherm® EIFS Wall Systems with Drainage

StoTherm® EIFS cladding systems combine continuous insulation (CI), water- and air-resistant barriers, and a wide variety of finishes to create high-performing, sustainable, and aesthetically pleasing wall cladding. EIFS systems allow for the use of a variety of insulation types: GPS (graphite-enhanced expanded polystyrene), mineral wool, XPS (extruded polystyrene) and EPS (expanded polystyrene). The aesthetically flexible and durable system maximizes curb appeal and saves money through lower energy bills.

Architects and contractors have used Sto products globally for decades for restoration and new construction.

Historical Restoration with EIFS

Sto Products: StoTherm™ Premier NExT® and StoGuard

The flexibility of StoTherm™ Premier NExT® EIFS (also known as EIFS-with-Drainage) allowed architects to restore the 100-year-old Lido Beach Towers facade to its former glory while also enhancing its sustainability, energy efficiency, and aesthetics.

EIFS Restoration of a Concrete Block Building

Sto Products: StoTherm®ci, StoCast Wood, Sto® Essence Finish

When the non-profits River Bend Food Bank and FISH of Galesburg, Illinois, set out to restore an old, 15,000 ft2 uninsulated concrete block building for their newest food pantry, they wanted to transform it into a high-performing, aesthetically pleasing structure. Upon the architect’s suggestion, they utilized StoTherm ci EIFS with StoCast Wood and Sto Essence Finish, which significantly improved the building’s thermal performance and overall aesthetics.

Residential Apartment Building Restoration with EIFS

Mocco and Urban Architecture chose the StoTherm® ci EIFS wall system with StoSignature Stone and StoSignature Brick for the restoration of the 333 Grand at Liberty Harbor, an 18-story, 80,000 ft2 multi-family, mixed-use complex with a stunning curved facade, oversized windows, multiple textured surfaces, and vibrant colors. Sto EIFS products ensured an energy-efficient, durable envelope with a significantly lower carbon footprint and greater LEED certification results.

Retail Store Renovation with Sto EIFS

Greenhouse Dispensary utilized the StoTherm ci EIFS system to produce flowing, organic shapes and rescue the building from the architectural mess created by prior additions and renovations of the almost 70-year-old building.

Implementation of this much-admired design included 3D modeling and precision laser cutting of complicated forms that allowed the structure to come together in pieces. The Stolit® Milano finish makes the building shine!

Multi-Family Restoration – Ocean Village

Sto Corp. products revived and improved the former Ocean Village (now the Arverne View), a 1000+ unit apartment, low-income complex in NY, by enhancing its energy efficiency, durability, and curb appeal with StoTherm® ci Lotusan® cladding. The wall system includes three proven components:

• StoGuard®: Fluid applied air and water-resistive barrier,
• StoTherm® ci Lotusan®: Exterior continuous insulation wall system and
• StoLit® Lotusan®: Tintable ultra-hydrophobic textured wall finish with superior self-cleaning properties.

Religious Building Restoration with EIFS

StoTherm® ci Essence (water-drainage EIFS system) provided this unique restoration project with a protective and decorative exterior wall cladding that combined the StoTherm® technology with a StoGuard® waterproof air barrier to improve protection against moisture infiltration and enhance thermal performance and durability.

Sto’s Complete Solution for Building Restoration

Sto has an innovative solution to building facade restoration – the A.R.T. of reStore™ – aesthetics, repair, and transformation. The A.R.T. of reStore™ offers all the services and materials needed to maintain and restore your building’s facade. The engineering can also enhance the building’s energy efficiency, safety, and occupant comfort level.

Vast Aesthetic Options

Sto offers aesthetic flexibility of wood, brick, stone, concrete and more, with complete design freedom in endless colors and textures as well as material options. In addition, Sto Studio can help with suggestions on textures, colors, and materials to help restore a building with a high-performing, fully-engineered, sustainable, and beautiful facade.

Sto Studio

Sto Studio will help your architectural design process and ensure that your building restoration will attain its maximum potential. We can generate various color renderings that will help determine the best facade to meet the desired aesthetics of your building.

Sto EIFS – The Best Solution for Restoration

Sto EIFS wall systems, including drainable EIFS, is the best solution for restoring residential, industrial, commercial, or institutional buildings. Sto EIFS cladding systems combine CI, water- and air-resistant barriers, and endless textured finishes to create sustainable, energy-efficient wall cladding. The aesthetically unique and durable system maximizes curb appeal and saves money through reduced energy bills and maintenance costs.

For more on how EIFS offers an ideal restoration solution for improving a building’s energy efficiency and aesthetics, don’t hesitate to contact the Sto professionals at (800) 221-2397!

The post EIFS: Flexible and Energy Efficient, a Great Solution for Restoration appeared first on Sto Corp..

Sto Masonry Veneer Engineered Systems (MVES) offer solutions allowing designers to achieve the look and performance they seek. These systems also allow for a vast array of building facade textures and colors while maintaining a continuous building envelope to help ensure a sustainable, energy-efficient building.

Sto Masonry Veneer Engineered Systems

Sto Masonry Veneer Engineered Systems (MVES) are fully engineered and tested systems that include the various control layers of the building envelope to ensure compatibility for a long-lasting, durable structure. Sto performed rigorous system-level structural, fire, and wind-load testing to ensure code-compliant and high-performing systems for any construction type.

All Sto’s MVES include the following components:

StoGuard® Air and Water-Resistive Barrier

The StoGuard® Air and Water-Resistive Barrier provides long-term protection against moisture intrusion and promotes excellent indoor air quality, unlike building wrap typically used in traditional masonry cladding, which can tear, puncture, or rip.

StoColl

High-performing, polymer-modified StoColl Portland cement thin set masonry veneer adhesive provides superior freeze-thaw resistance and high bond strength.

MVES Allows for Multiple Facades to Single System Designs

Sto Masonry Veneer Engineered Systems (MVES) allows architects and builders to apply a combination of masonry veneers like thin brick, natural stone, cultured stone, or ceramic tiles, along with a vast array of colors and textures coatings provided by Sto’s high-performance finishes, to their fully engineered and tested systems. The system type depends on the building’s performance needs (e.g., a continuous insulation system (EIFS), traditional stucco, cement board stucco, or rainscreen systems)).

Sto’s EIFS, stucco, cement board stucco and rainscreen systems include StoTherm® ci MVES, StoPowerwall DrainScreen MVES, StoQuik Silver DrainScreen MVES, StoPowerwall ExtraSeal MVES, and StoVentec for masonry veneer facades.

The systems provide several significant benefits:

• Durability
• Water and vapor protection
• Complete compatibility with other Sto architectural surfaces or systems

StoTherm® ci MVES

Sto Products: StoTherm® ci, StoTherm® ci MVES with stone, StoGuard®

White Castle built their largest restaurant with a combination of StoTherm® systems to provide superior protection against Florida’s frequent tropical storms and hurricanes while still being able to match the White Castle restaurants’ stucco and stone aesthetics.

Light-weight, energy-efficient StoTherm® ci MVES incorporates continuous exterior insulation to meet the most stringent energy codes. It also complies with NFPA 268 and 285 standards for Types I-IV construction, IBC, IRC, IECC (2012, 2015, 2018), ASHRAE 90.1-2016, and passed the ASTM E119 1-hour load-bearing rated assembly.

1. Structural Wall Assembly
2. Air and Water-Resistive Barrier
3. Sto RapidGuard® sheathing joints and corners, flashings, and rough opening protections
4. Sto RapidGuard® static joints and seams
5. StoGuard® Conformable Membrane
6. Adhesive: Sto TurboStick
7. Insulation: DuPont™ Panel Core 20/ ST-100 – XPS
8. Mesh: Sto 6 oz. Reinforcing Mesh
9. Basecoat: Sto Primer/Adhesive
10. Attachment: Fastener by others
11. Masonry Veneer Adhesive: StoColl
12. Masonry Veneer Grout
13. Masonry Veneer, thin brick, thin natural stone, ceramic tile, or manufactured stone in conformance with applicable building code requirements

StoPowerwall® MVES

StoPowerwall® MVES is a three-coat stucco system with superior impact resistance:

1. Air and Water-Resistive Barrier – Wall Membrane: Sto Gold Coat® – Substrate Drive
2. Sto RapidGuard®: sheathing joints and corners, flashing and rough opening protection
3. Sto RapidGuard®: Static Joints and Seams
4. Dynamic Joints: StoGuard® Conformable Membrane
5. Code Compliant Paper or Felt WRB
6. Code Compliant Metal Lath
7. Stucco Scratch Coat: StoPowerwall Stucco
8. Stucco Brown Coat: StoPowerwall Stucco
9. Masonry Veneer Adhesive: StoColl
10. Masonry Veneer Grout
11. Masonry Veneer, thin brick, thin natural stone, ceramic tile, or manufactured stone in conformance with applicable building code requirements

StoPowerwall® DrainScreen® MVES

StoPowerwall® DrainScreen® MVES includes Sto DrainScreen for advanced moisture management. The Sto DrainScreen drainage mat provides additional ventilation to evacuate incidental moisture. It complies with IRC, IBC, IECC (2012, 2015, 2018), and NFPA 285 for Types I-V construction.

1. Air and Water-Resistive Barrier – Wall Membrane: Sto Gold Coat®– Substrate Drive
2. Sto RapidGuard®: sheathing joints and corners, flashing and rough opening protection
3. Sto RapidGuard®: Static Joints and Seams
4. Dynamic Joints: StoGuard® Conformable Membrane
5. Code Compliant Paper or Felt WRB
6. Drainage: Sto DrainScreen 6mm
7. Code Compliant Metal Lath
8. Stucco Scratch Coat: StoPowerwall Stucco
9. Stucco Brown Coat: StoPowerwall Stucco
10. Masonry Veneer Adhesive: StoColl
11. Masonry Veneer Grout
12. Masonry Veneer, thin brick, thin natural stone, ceramic tile, or manufactured stone in conformance with applicable building code requirements

StoQuik® Silver DrainScreen® MVES

StoQuik® Silver DrainScreen® MVES is a fast and easy-to-install, superior impact-resistant system with Sto DrainScreen® technology to promote drainage and drying of the wall system. StoQuik® Silver DrainScreen® MVES complies with IBC, IRC, IECC (2012, 2015, 2018), and NFPA 285 for Types l-V construction – an ideal design solution for residential, low-rise commercial or institutional buildings

1. Structural Wall Assembly
2. Air and Water-Resistive Barrier – Wall Membrane: Sto Gold Coat® – Substrate Drive
3. Sto RapidGuard®: Sheathing Joints and Corners, Flashing and Rough Opening
4. Static Joints and Seams: Sto RapidGuard®
5. Dynamic Joints: StoGuard® Conformable Membrane
6. Dynamic Joints: StoGuard® Conformable Membrane
7. Drainage: Sto DrainScreen® 6mm
8. PermaBase™ Cement Board ASTM C 1325 (min. ½ inch or 13 mm)
9. Joint Reinforcement: StoGuard® Fabric 9
10. Joint Reinforcement Air & Water-Resistive Barrier – Wall Membrane: Sto Gold Coat® – Substrate Driven
11. Skim Coat: StoColl
12. Masonry Veneer Adhesive: StoColl
13. Masonry Veneer Grout
14. Masonry Veneer

StoPowerwall® – ExtraSeal MVES

StoPowerwall ExtraSeal MVES is a direct applied portland cement stucco wall system with Adhered Masonry Veneer (AMV) – thin brick, natural stone, ceramic tile, or manufactured stone. Sto ExtraSeal offers air and moisture protection with the strength and durability of Portland cement stucco.

1. Air and Water-Resistive Barrier – Wall Membrane: Sto ExtraSeal®
2. StoGuard Detail Component – Flashing and Rough Opening Protection, Penetrations: Sto RapidGuard®
3. StoGuard Detail Component- Static Joints and Seams: Sto RapidGuard®
4. StoGuard Detail Component- Dynamic Joints: StoGuard Conformable Membrane
5. Stucco Scratch Coat: Sto ExtraSeal®
6. Stucco Brown Coat: StoPowerwall Stucco
7. Masonry veneer adhesive: StoColl
8. Masonry Veneer Grout
9. Masonry Veneer

StoVentec® for Masonry Veneer Facades

Drained, fully-engineered, back-ventilated StoVentec for masonry veneer facades Rainscreen® wall system features a thin brick facade. The complete system includes continuous insulation, sub-construction, and air and water-resistive barrier. StoVentec for masonry veneer facades combines the high performance of the StoVentec rainscreen system with the durability of thin brick masonry veneer.

1. Structural Wall Assembly
2. Air & Moisture Barrier – Wall Membrane: Sto AirSeal® – Substrate Driven
3. Air & Moisture Barrier – Sheathing Joints & Corners: Sto RapidGuard®
4. Air & Moisture Barrier – Rough Opening Protection: Sto RapidGuard®
5. Air & Moisture Barrier – Flashing and Penetration: Sto RapidGuard®
6. Insulation: =Owens Corning Thermafiber® Rainbarrier 45
7. Sub-construction: StoVentro Subconstruction
8. Carrier Board: StoVentec® Carrier Board A+
9. Primer: StoPrime
10. Base Coat: Sto Primer/Adhesive
11. Reinforcing Mesh: Sto 6 oz. Mesh
12. Masonry Veneer Adhesive: StoColl
13. Masonry Veneer Grout (by others)
14. Masonry Veneer (by others)

StoTherm ci MVES Case Studies

Sunnyslope High School Phoenix, AZ

Sto products used: StoTherm ci MVES

Encompass Health Owasso, OK

Sto products used: StoPanel Classic NExT ci and StoTherm ci MVES

PayCom Headquarters Grapevine, TX

Sto products used: StoTherm ci and StoTherm ci MVES

The Benefits of Sto Masonry Veneer Engineered Systems

Sto Masonry Veneer Engineered Systems provides architects and builders with multiple options for combining masonry veneer surfaces (natural stone, thin brick, cultured stone, or ceramic tiles ) and Sto’s high-performance finishes with Sto fully engineered EIFS, stucco, or cement board systems: StoTherm® ci MVES, StoPowerwall DrainScreen MVES, StoQuik Silver DrainScreen MVES, StoPowerwall ExtraSeal MVES, and StoVentec for masonry veneer facades. Together, the Sto products create one complete system to ensure the continuity and compatibility of the building envelope and the designer’s and building owners’ aesthetic goals.

Contact Sto today for more on how Sto MVES and specialty finishes can help you achieve all your building’s performance and aesthetic goals.

The post Enhancing Architectural Appeal: Exploring Sto Masonry Veneer Engineered Systems (MVES) appeared first on Sto Corp..

Insulated Metal Wall Panels

Manufacturers make insulated metal panels (MIPs) from copper, aluminum, steel, or zinc. IMPs provide several benefits, including durability, fire resistance (according to NFPA 285 and ASTM E119), and design versatility. However, IMPs are costly, especially those made of copper and zinc. In addition, steel and aluminum IMPs may degrade over time due to corrosion.

Exterior Insulation and Finish Systems

EIFS wraps a building with continuous insulation (R-value between 4 and 5.6 per inch), which lessens thermal bridging, improves air and moisture infiltration, and lowers energy consumption. In addition, EIFS complies with NFPA 285 (referenced in 2021 IBC Section 1403.5) and all other major fire-resistant tests that are required by building codes to limit fire spread horizontally and vertically.

Components of EIFS

EIFS cladding includes several layers over the exterior sheathing that creates superior insulation and moisture protection compared to IMPs. The components (layers) of EIFS typically include:

A water-resistive barrier over the substrate that prevents moisture from infiltrating the wall system
Dual purpose ribbons of adhesive that also provide drainage capability for any moisture
An insulation layer of expanded polystyrene (EPS), mineral wool, graphite polystyrene (GPS) or extruded polystyrene (XPS)
A layer of fiberglass mesh embedded in the base coat that protects against cracks due to thermal expansion, freeze/thaw cycles, and shifting foundations and adds additional durability
A base coat in the glass-fiber reinforcing mesh that is applied on top of the insulation
A finishing coat that gives the exterior surface color, texture, and protection

Structural and Aesthetic Advantages of EIFS

EIFS insulation cladding’s structural and aesthetic appeal makes it a superior choice for new and retrofitted construction. In addition, builders can apply these multilayered cladding systems to wood, concrete, or steel substrates in any climate.

Specific design and structural benefits include:

• Energy-efficient EIFS with drainage and CI meet the mandates of ASHRAE 90.1.
• EIFS resists flames spreading within the combustible component/core of panels from one story to the next. EIFS also limits the lateral spreading of flames from the compartment fire origin to adjacent spaces (NFPA 285).
• Fire-resistant, passes building code requirements for ignitability (NFPA 268) and fire resistance (ASTM E119).
• Low-maintenance EIFS resists structurally unhealthy and damaging mold.
• Aesthetically versatile, EIFS can mimic brick, wood, granite, stone or concrete. There are also EIFS systems for use with thin brick, natural stone, ceramic tile, or cultured stone.

Achieving Energy Efficiency and Comfort with StoTherm® ci Cladding Wall Systems Drainable EIFS

StoTherm® ci Wall Systems Drainable EIFS offers an innovative approach to EIFS technology with drainage that helps to stop moisture accumulation within the wall cavity. The straightforward application of durable StoTherm® ci Wall Systems Drainable EIFS provides excellent energy efficiency, condensation prevention, design flexibility, and impact and fire resistance.

Durability

Durable StoTherm® ci EIFS will last a structure’s lifetime, with proper maintenance. In addition, you can repair EIFS with the help of an experienced EIFS professional. For information on repairing EIFS, refer to the StoTherm® EIFS Reference Guide or contact one of our qualified representatives at 1-800-221-2397.

Energy-Efficiency

All EIFS have ci, which lowers energy use, saves money, and satisfies today’s energy codes and customer demands.

Condensation Resistance

EIFS insulation thickness helps prevent the interior air from reaching the dew point (the temperature when water vapor turns to water) to limit, if not eliminate, condensation within the wall system.

Fully-adhered, StoGuard® fluid-applied air and water-resistive barrier’s seamless monolithic exterior wall air and moisture barrier protects against moisture intrusion and unwanted air movement – ideal for all types of construction.

Impact Resistance

The use of high-impact mesh for EIFS installations can add additional impact resistance. EIFS systems meeting the stringent Miami-Dade Notice of Acceptance (NOA) are also available for use in areas where there is risk for tropical storms and hurricanes.

Fire Resistance

Fire-resistant EIFS passes the mandated building code tests for ignitability (NFPA 268), fire resistance (ASTM E119), and intermediate multi-story fire test (NFPA 285). Click here or contact one of our qualified representatives at 1-800-221-2397 for more on NFPA 285 testing of Sto cladding systems.

Quality Sealants

Preventing water intrusion into the wall assembly must include the use of quality sealants, like StoSeal STPE Sealant (link to: https://www.stocorp.com/stoseal-stpe-sealant/) in the following areas:

• Perimeter weather seal around windows, doors, scuppers, and other through wall penetrations
• Perimeter weather seal around fixture attachments
• Deflection joint sealant at floor lines
• Thermal expansion and contraction joints
• Control joints
• Panel-to-Panel joints between precast, metal frame, and other prefabricated wall construction
• Bedding sealant for flashing, flanged windows, and similar applications
• Air seal at interior or exterior joints and seams for air barrier continuity

Design Flexibility

EIFS allows you to customize the cladding’s aesthetic to fit your project’s design needs.
StoTherm® ci Systems advanced integrated wall systems combine protective and aesthetic components into a superior wall insulation cladding.

The system’s high-performance features include the following elements:

StoTherm® ci cladding systems combine air and water-resistive barriers, CI, drainage, textured finishes, and coatings to create sustainable, high-performance wall cladding. The durable and attractive system maximizes curb appeal and saves money by reducing energy bills.

Sto’s architectural coatings offer all the features of high-quality EIFS paints; excellent protection against fading, mildew, mold, crack bridging, self-cleaning properties, low VOC, and vapor permeability. The coatings come in an assortment of textures and sheens. We can also tint them in various colors to fit all of your exterior design requirements.

Sto’s high-performance finishes provide designers and architects with an expansive selection of color and texture options, including brick and wood. Sto manufactures durable finishes to the highest standards in order to resist dirt and water and protect your building and home while also creating attractive curb appeal

Drainable EIFS – StoTherm® ci Wall Systems

Sto offers eight drainable, continuous insulation EIFS StoTherm® ci Systems, including four StoTherm® ci Hurricane Impact Systems:

1. StoTherm® ci

Lightweight StoTherm® ci combines StoTherm® and the StoGuard® waterproof air barrier to improve energy efficiency, protect against moisture infiltration, and create comfort in your building.

Multi-story residential complex utilized StoTherm® ci with StoSignature™ Stone & StoSignature™ Brick

2. StoTherm® ci XPS

High-performing and durable StoTherm® ci XPS incorporates high R-value extruded polystyrene insulation into the wall system and the StoGuard® fluid-applied moisture and air barrier to create water and air-resistant walls for enhanced thermal efficiency and comfort.

3. StoTherm® ci MVES

The StoTherm® ci MVES(masonry veneer engineered system) utilizes masonry veneer, natural stone, ceramic tile, or manufactured stone as the facade finish. It also meets applicable building code requirements.

Retail store utilized StoTherm ci MVES

4. StoTherm® ci Mineral

The StoTherm® ci Mineral system includes a non-combustible, mineral wool exterior insulation and continuous moisture and air barrier with Sto’s high-performance finish to produce an advanced insulation cladding system.

This medical building utilized StoTherm Mineral

5. StoTherm® ci HI-PLY

StoTherm® ci HI-PLY, is a high-performing exterior wall cladding system that combines CI with a seamless air and moisture barrier and innovative drainage capabilities over CDX exterior plywood sheathing. In addition, StoTherm® ci HI-PLY’s engineering also meets the testing requirements for small and large missile impacts.

6. StoTherm® ci HI-CM 180

Energy-efficient and hurricane-resistant StoTherm® ci HI-CM 180 CI wall cladding integrates StoTherm® insulated cladding, StoGuard® waterproof air barrier, and drainage capabilities. In addition, StoTherm® ci HI-CM 180’s engineering meets the testing requirements for small and large missile impacts.

7. StoTherm® ci 1177-LM

StoTherm® ci 1177-LM exterior wall cladding systems offer a seamless air and moisture barrier with CI, advanced drainage capabilities, and Sto Armor Mat XX Mesh for added impact and reinforcement resistance over glass mat gypsum sheathing. In addition, the engineering of StoTherm® ci 1177-LM meets the testing requirements for small and large-impact performance on 16-gauge steel studs with gypsum sheathing.

8. StoTherm® ci 1177-SM

StoTherm® ci 1177-SM exterior wall cladding assemblies combine seamless air and moisture barrier with innovative drainage capabilities over glass mat gypsum sheathing. The engineering of StoTherm® ci 1177-SM meets the testing requirements for small missile impacts.

Key to Energy Efficiency and Comfort in Your Building – StoTherm® ci EIFS Systems

Utilizing StoTherm® ci cladding systems is the key to energy efficiency and comfort in your building. StoTherm® ci cladding systems combine continuous insulation, air and water-resistive barrier, drainage, and various textured finishes to create attractive, energy-efficient wall cladding that saves money and ensures a comfortable indoor environment. The durable system also maintains its maximum curb appeal, which preserves its resale value.

Sto offers architects various Continuing Education classes with additional information about designing with Sto’s envelope systems. Click here to see the full list of available courses, online courses, and the schedule for upcoming courses.

Contact one of our experienced representatives today or at 1-800-221-2397 to learn more about achieving energy efficiency and comfort with EIFS in your building.

The post Insulation Cladding: The Key to Energy Efficiency and Comfort in Your Building appeared first on Sto Corp..

Retrofitting buildings for energy efficiency includes significant upgrades to an existing building:

The design of a green retrofit should include significant building-envelope upgrades of all air-sealing and insulation systems, including the walls, foundation, roofing, doors, windows, and skylights. For example, installing StoTherm® ci Wall Systems Drainable EIFS can contribute tremendously to achieving a tight building envelope and to the goals of a deep energy retrofit.

The deep energy retrofit includes upgrades to heating and cooling systems: duct-system redesign, zoning, thermostat replacement, installation of on-demand heat pumps and water heaters, and use of energy recovery ventilation (ERV) systems.

Installation or upgrading of renewable energy mechanisms: small “hybrid” electric systems, solar photovoltaic (PV) panels, wind systems, or microhydropower.

A Deep Energy Retrofit of the Edgewater Condominiums, North Myrtle Beach, SC

Applying StoTherm® ci stopped water intrusion and improved the energy efficiency of this 260-unit condominium.

Applicator: Premier Exteriors
Architect: Construction Science and Engineering
Distributor: Capitol Materials Coastal
General Contractor: Prime South
Owner‘s Representative: Jason Smith

The entire building team for the green building retrofit of the Edgewater Condominium project worked together to develop the best solution to optimize the structure’s waterproofing and energy efficiency. They decided on the complete StoTherm system with a fluid-applied air and water resistive barrier and an adhered, drainable, continuously insulated system. The air and water resistive barrier serves as the first line of defense to stop moisture intrusion issues. In addition, the lack of fasteners prohibits potential moisture intrusion and thermal bridging.

The project involved the removal of all existing stucco. Applicators then reclad the structures with 250,00 ft2 of StoTherm® ci Lotusan® continuous insulation wall system. Applying the Sto system lowered the condominium’s utility bills and reduced upkeep to maintenance.

The Benefits of Deep Energy Retrofits

Retrofitting existing buildings offer many benefits to property owners and the environment:

Energy Savings

A retrofit home for energy efficiency can reduce energy use by 58 to 79 percent (depending on the home’s age and regional climate). Simple weatherization only cuts energy use by 10 to 20 percent.
Some deep energy retrofits achieve net-zero energy use, with homes and buildings producing as much energy as they use from on-site renewable resources.

Improved Indoor Air Quality

Indoor air contains about 2 to 5 times more pollution than outdoor air, a concerning health issue, considering many spend 90 percent of their time indoors. A home energy retrofit with improved ventilation systems helps control indoor temperature and humidity, both significant factors that affect indoor contaminant levels.

Enhances Indoor Environmental Quality (IEQ)

A deep energy retrofit contributes to excellent indoor environmental quality (IEQ) by creating comfortable, mold-free buildings and homes with controlled acoustics.

Lowers Maintenance Cost

Deep energy retrofits help to manage moisture and air infiltration in a building’s wall system to lessen the risk of corrosion and decay and significantly lower the cost of maintenance and repairs.

Lower Carbon Emissions

A deep energy retrofit can lower carbon emissions by 32 to 56 percent.

Higher Property Values

A deep energy retrofit increases a property’s resale value.

Energy Codes Guide Deep Energy Retrofit Buildings

Building codes help to guide builders, architects, engineers, and energy retrofit companies to design deep energy retrofits.

In the U.S. building teams use the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) Standard 90 and the International Energy Conservation Code (IECC) for design guidance of deep energy retrofits. Canadians can refer to the National Building Code of Canada (NBC) and the National Energy Code for Buildings (NECB).

Deep Energy Retrofit Cost

The costs of deep energy retrofit projects depend significantly on the project’s size and objectives. In addition, you can implement deep energy retrofit upgrades all at once or phase them in over several years, depending on your budget.

Planning a Deep Energy Retrofit to Optimize Energy Savings

To ensure financially successful deep energy retrofits, Sto strongly recommends hiring a skilled, experienced energy contractor to perform a professional energy audit and help you develop an innovative, energy-efficiency building retrofit program and solution to achieve your energy-saving goals.

In addition, a deep energy retrofit solution should include the whole-building approach and applying Building Energy Modeling (BEM).

Whole-Building Approach

Successfully retrofitting existing buildings involves a whole-building system approach that strives to use natural resources efficiently, lessen energy use, and enhance the building’s value. The whole-building system approach treats a building as a single energy system, where each component affects the entire building’s efficiency.

The design phase of retrofitting buildings for energy efficiency requires the building team, including the architects, builders, developers, and engineers, to collaborate and participate in all parts of the structure’s design and construction. In addition, they should select construction products and systems that use renewable energy sources and limit energy use.

Building Energy Modeling

Building Energy Modeling helps architects and builders optimize energy savings. BEMs use project-specific features like orientation, window location, weather, building methods and materials, and more. BEMs help to estimate a building’s energy efficiency and to meet energy codes. The BEM can also minimize building costs by identifying required insulation levels to achieve performance goals cost-effectively and offset costly, higher-quality envelope solutions by requiring a smaller HVAC system.

Sto’s All-In-One Continuous Insulation Wall System for Deep Energy Retrofit

A deep energy retrofit should include an application of continuous insulation (CI) in the exterior walls. Fortunately, energy-efficient, code-compliant exterior insulation and finish systems (EIFS), like StoTherm® ci Wall Systems Drainable EIFS, provide an all-in-one CI solution for achieving deep energy retrofit goals.

StoTherm® ci Wall Systems Drainable EIFS

StoTherm® ci cladding systems combine continuous insulation, drainage, air and water resistive barrier, and many surfaces and textured finish choices to create a sustainable wall cladding. The durable and unique design sustains curb appeal and saves money by minimizing energy bills and maintenance costs. Sto has several StoTherm® ci cladding systems, including StoTherm ci Hurricane Impact systems that meet Miami-Dade NOA standards.

Deep Energy Retrofit of Union Towers I in Weymouth, MA

In the first year after installing the Sto system as part of the project’s deep energy retrofit, Union Towers I reduced their heating and cooling energy costs by 30 to 40 percent.

Sto Products: StoTherm® ci Lotusan®
Owner: Union Congregational Church Homes, Inc.
Applicator: Rima Design, LLC
Contractor: Dellbrook Construction
Architect: McKinnelle & Taylor, Inc.
Distributor: Kamco Supply of Boston

The brick, 60,000 ft.2, 11-story, 50-year-old, mixed-use Union Towers I suffered from moisture intrusion and heat loss due to improper insulation and drafty windows.

After consulting with Sto distributors, the owners decided that Sto reStore Level 3 Overclad with a StoTherm® ci system would provide the best cost-effective solution to their deep energy retrofit project. Overcladding the brick with the StoTherm® ci Lotusan® from top to bottom creates an energy-efficient, air-tight envelope.

StoTherm® ci

StoTherm® ci combines the StoTherm® and StoGuard® waterproof air and water resistive barrier system to prevent moisture infiltration and enhance energy efficiency.

StoTherm® ci XPS

StoTherm® ci XPS combines high-performing R-value XPS insulation into the wall assembly and StoGuard® fluid-applied air and water resistive barrier to ensure a wall’s durability and thermal efficiency.

StoTherm® ci MVES

StoTherm® ci MVES (masonry veneer engineered system) features ceramic tile, manufactured stone, and masonry veneer in natural stone to meet building codes.

StoTherm® Mineral ci

The StoTherm® ci Mineral System includes a non-combustible mineral wool continuous insulation and air and water resistive barrier with Sto’s high-performance finishes for an advanced cladding system.

StoTherm® ci HI-CM 180

Energy-efficient StoTherm® ci HI-CM 180 is a CI wall cladding assembly that combines StoTherm® insulated cladding, StoGuard® air and water resistive barrier, and drainage over concrete substrates. StoTherm® ci HI-CM 180 engineering meets the testing requirements for missile impacts (large and small).

StoTherm® ci 1177-SM

StoTherm® ci 1177-SM exterior wall cladding assembly includes a seamless air and water resistive barrier with innovative drainage capabilities over glass mat gypsum sheathing. In addition, the engineering of StoTherm® ci 1177-SM fulfills the testing mandates for small missile impacts.

StoTherm® ci 1177-LM

StoTherm® ci 1177-LM exterior wall cladding creates a seamless air and water resistive barrier with continuous insulation, advanced drainage, and Sto Armor Mat XX Mesh for added impact resistance and reinforcement compared to glass mat gypsum sheathing. StoTherm® ci 1177-LM engineering fulfills the testing mandates for missile impact (small and large) performance on 16-gauge steel studs with gypsum sheathing.

StoTherm® ci HI-PLY

StoTherm® ci HI-PLY exterior wall cladding integrates a seamless air and water resistive barrier with CI and advanced drainage over CDX exterior plywood sheathing. In addition, StoTherm® ci HI-Ply engineering also fulfills the testing mandates for large and small missile impacts.

Why Use StoTherm® ci Cladding Systems for Deep Energy Retrofits?

Deep energy retrofits offer many long-term benefits:

• Reduced energy use
• Improved indoor environmental quality
• Lower global-warming greenhouse gas emissions
• Reduced utility and maintenance bills
• Increased resale value
• Adhered – no thermal bridging
• Continuous insulation and airtight envelope

Incorporation of StoTherm® ci Wall Systems Drainable EIFS into the design of a deep energy retrofit will significantly contribute to optimizing a building’s energy efficiency. Sto systems also provide durable, safe, and sustainable walls with beautiful, unique aesthetics.

For more on the benefits of deep energy retrofits, contact Sto Corp today.

The post The Benefits of Deep Energy Retrofits: Saving Money and the Environment appeared first on Sto Corp..

Restoring old buildings should aim to protect the property’s historical significance and aesthetics by preserving its original materials. However, components that are damaged beyond repair or do not meet current building codes, safety, and sustainability needs will require upgrading or replacement. In these cases, architects and builders should strive, as much as possible, to maintain the original aesthetics and character of the building.

For example, for old building facade replacement or restoration, Sto’s The A.R.T. of reStore® program provides an innovative solution for restoring old buildings’ facades to their original aesthetics. In addition, our products enhance a structure’s sustainability, safety, and occupant comfort level.

Preserving the Past By Old Building Restoration

The restoration of old buildings provides many cultural, economic, and sustainable benefits to a community; however, achieving these benefits successfully often requires the help of an experienced and qualified historic building restoration expert.

NOTE: Contact Sto Studio for design suggestions to help restore your historic old building with a high-performing, sustainable, aesthetically pleasing, and fully engineered cladding system.

Cultural Benefits of Restoring Old Buildings

Restoration of old buildings helps retain a community’s history, culture, aesthetics, and legacy for the current and future generations.

The National Historic Preservation Act (NHPA)

Nearly fifty years ago, the U.S. Congress recognized the cultural, educational, aesthetic, inspirational, sustainable, and economic importance of restoring old buildings to our country’s heritage by enacting the National Historic Preservation Act (NHPA).

After it passed, the Secretary of the Interior instituted the Standards for the Treatment of Historic Properties to direct the restoration of old buildings in America. Furthermore, National Historic Preservation Fund grant-in-aid projects must follow the Standards for the Treatment of Historic Properties, according to 36 CFR 68.

The Standards provide four approaches to treating historic old building properties: preservation, rehabilitation, restoration, and reconstruction. The treatment depends on the building’s historical significance, proposed use, physical condition, and planned interpretation. All approaches permit code-required work to make the old buildings functional, including upgrading mechanical, plumbing, and electrical systems.

Preservation

Preservation involves applying measures necessary to maintain the existing integrity, materials, and form of a historic, old building. The work includes steps to protect and stabilize the building, and focusing on ongoing maintenance and repairs of historic features and materials rather than extensive replacement and new construction and exterior additions.

Rehabilitation

Rehabilitation involves altering, repairing, and adding to an old building while preserving those features which convey its historical, architectural, or cultural values. Rehabilitation allows for replacing deteriorated parts; however, the replacements must match the original design, color, texture, and materials, if possible.

Restoration

Restoration depicts a property’s character, features, and form from a particular time. To achieve this, builders remove old, deteriorated building components, and replace them with new features that match the original design, color, materials, and texture.

Reconstruction

Reconstruction involves designing and building a new structure to match the building’s appearance from a specific historical time.

Economic Benefits of Restoring Old Buildings

• Encourages local businesses to grow and increases real estate values, which helps the economic viability of historic spaces.
• Allows architects and builders to include energy-efficient, durable building materials in the restoration design of old buildings.
• Rehabilitation often costs less than new construction.
• Existing usable space – faster occupancy.

Sustainable Benefits of Restoration of Old Buildings

Recycling of Building Materials

• Lessens the need for new materials to save natural resources
• Reduces landfill waste and construction, demolition, and hazardous material debris

Energy Savings

• Eliminates the use of energy for demolition and new construction
• Allows for reuse of embodied energy in building materials and systems
• Retrofitting allows for more energy-efficient products, like wall systems, windows, doors, etc.

Sto’s Complete Approach to Old Building Restoration

Sto offers an innovative solution to restoring old building’s facades – The A.R.T. of reStore – aesthetics, repair, and transformation. It offers all the products and services needed to maintain and restore your old building’s facade.

Our product’s engineering will also enhance the building’s sustainability, energy efficiency, safety, and occupant comfort level.

ReStore offers four levels of restoration, from elementary maintenance removing dirt and mold to an entire facade restoration with all of the needed products and support:

1. Clean and Recoat: A simple program to remove dirt, mold, and mildew to update and refresh the facade’s color.
2. Repair and Refinish: A program to repair small deterioration or damage to EIFS or stucco facades.
3. Overclad: A cost-effective program to fix moisture intrusion problems and improve the facade’s energy efficiency and aesthetic appeal.
4. Remove and Reclad: New cladding offers a more efficient solution for unrepairable deteriorated exterior walls.

Restoring the Lido Beach Towers, Long Island, NY

Applying StoTherm ci to the 100-year-old Lido Beach Towers facade helped restore the old building to its former glory while also enhancing its sustainability and energy efficiency.

StoTherm ci

StoTherm ci EIFS provides an energy-efficient, high-performance thermal wrap with proven components: continuous insulation, an air-and water resistive barrier, and textured finish options to complete your design.

Sto’s Comprehensive Repair Guide

Sto’s Comprehensive Repair Guide identifies 30 common problems affecting EIFS, masonry, concrete, and stucco with step-by-step illustrated solutions. Click here to download Sto’s Repair Guide.

Endless Aesthetic Choices

Sto provides the aesthetic flexibility to replicate any old building facade, including stone, brick, concrete, and more, with complete design freedom in endless color, material, and texture options.

Sto Studio

Sto Studio offers architectural design assistance to ensure the maximum potential of your old building restoration. We work to create a complete facade concept, including color and material options, to preserve the original character and aesthetics of the property. In addition, we can generate color renderings of your building that will help determine the best facade to maintain the cultural integrity of the building.

Villa Renaissance, Turks and Caicos

System Type: Aesthetics, Coatings
Sto Systems & Products: StoColor® Dryonic™, Stolit® 3.0
Construction Type: Renovation
Building Type: Hospitality

Villa Renaissance’s general manager chose StoColor® Dryonic™ exterior coating with Intelligent Technology + Design to refresh and update the resort’s existing coral facade. The distinctive, cohesive color palette, designed with the assistance of Sto Studio, matched the island’s coral aesthetic and provided the durability and moisture protection to survive its punishing conditions. In addition, they applied Stolit 3.0 on all existing coral renderings.

Restoring Old Buildings for Future Generations with Sto Corp. Products

Old building restoration should preserve the original aesthetics of a structure while repairing and retaining the original building’s features. However, the restoration design should include new equipment and innovative technologies to meet modern codes, ensure occupants’ safety and comfort, and protect the environment through sustainable building materials and methods.

Contact Sto professionals today on how our A.R.T. of reStore™ and Sto Studio can assist you with your old building restorations.

The post Preserving the Past: Restoring Old Buildings for Future Generations appeared first on Sto Corp..

However, while facade restoration encourages the preservation of original materials, building components that are damaged beyond repair or don’t meet current codes will need upgrading or replacement. In addition, all improvements must strive to maintain the original aesthetics and building’s character, by preserving the structure’s and surroundings’ architectural style.

Sto Products has a superior-innovative solution for building facade restoration for preserving architecture – Sto’s The A.R.T. of reStore® program. Sto products also enhance a building’s sustainability, energy efficiency, safety, durability, and occupant comfort level.

The Renovation of Union Towers

A StoTherm® ci System overclad gave the Union Towers multi-family high rise an energy efficient facelift.

Architect Bob MacLeod, RA, of McKinnell, McKinnell & Taylor Inc. chose Sto reStore® Level 3 Overclad with StoGuard®, Stolit® Lotusan®, and StoTherm® ci to provide a cost-effective solution to deliver the additional insulation that was needed to upgrade the 50-year-old structure’s energy efficiency.

The Pros of Preserving Architecture

Historic architecture preservation and restoration can provide sustainable, economic, and cultural advantages to building owners and the community. However, achieving these benefits often requires a qualified, experienced historic building restoration professional.

Don’t hesitate to contact one of Sto’s facade restoration experts for preserving architecture at (800) 221-2397 or click here.

Economic Benefits of Historic Facade Restoration

• Facade restoration is done with high-quality, durable building materials. For instance, historic masonry restoration preserves historic facades’ character and cultural value.
• Rehabilitation typically costs less than new construction.
• Facade restoration increases the structure’s resale values and attracts business, which can help the economic viability of historic spaces.
• Facade restoration uses existing space, which quickens occupancy.

Sustainability Advantages of Facade Restoration

Energy Savings

• No energy needed for new construction and demolition
• Reuse of embodied energy in building systems and materials
• Retrofitting allows for more energy-efficient building products, like wall systems, doors, windows, etc.

Recycling of Building Products

• Lessens the need for new materials, saving natural resources
• Reduces construction and demolition debris to decrease landfill waste
• Reduces hazardous debris

Cultural Benefits of Facade Restoration

Facade restoration for preserving architecture helps retain a community’s history, appeal, and aesthetics.

The National Historic Preservation Act (NHPA)

In 1966, Congress instituted the National Historic Preservation Act (NHPA) to mandate the use of historic structures for the public’s benefit and to preserve our national heritage. After it passed, the Secretary of the Interior created the Standards for the Treatment of Historic Properties to guide historic building preservation practice and design in America. Moreover, all grant-in-aid projects assisted through the National Historic Preservation Fund need the Standards for the Treatment of Historic Properties (codified in 36 C.F.R. 68).

The Standards provide four approaches to treating historic properties: Preservation, Rehabilitation, Reconstruction, and Restoration. The approach depends on the property’s historical significance, proposed use, intended interpretation, and physical condition. The standards allow for code-required work to make properties functional, including the sensitive and limited upgrading of electrical, plumbing, and mechanical systems.

Preservation

Preservation measures aim to sustain a historic structure’s integrity, form, and products. The work includes protecting and stabilizing the building, focusing on ongoing maintenance and repairs of historical components and materials rather than large-scale replacement and new construction.

NOTE: Preservation does not include new exterior additions.

Rehabilitation

Rehabilitation involves repairing, adding, and altering a historic building while preserving those portions which convey its architectural, cultural, or historical values. Notably, rehabilitation allows for replacing deteriorated features; however, the replacements must match the old color, texture, design, and materials, if possible.

Reconstruction

Reconstruction involves designing and building a new structure to match a building’s aesthetics from a specific historical time.

Restoration

Restoration involves accurately depicting a property’s character, features, and form from a particular time. The process consists in removing building parts from other periods and reconstructing missing components from the restoration time. Additionally, builders can replace deteriorated features with new ones that match the original color, texture, design, and materials.

Sto’s Complete Approach to Facade Restoration for Preserving Architecture

Sto Corp. offers an innovative solution to building facade restoration for preserving architecture – the Sto A.R.T. of reStore® – aesthetics, transformation, and repair. The A.R.T. of reStore® has all the materials and services needed to maintain and restore a building’s facade. Furthermore, our product’s engineering can improve the building’s sustainability, energy efficiency, integrity, safety, and occupant comfort level.

ReStore® provides four levels of restoration, from simple maintenance to dirt and mold removal as well as a complete facade restoration with all the necessary products and support.

• Clean and Recoat: A program to remove dirt, mold, and mildew while updating or refreshing the facade’s color.
• Repair and Refinish: The program repairs minor damage to EIFS or stucco facades before significant damage happens.
• Overclad: A cost-effective program to fix moisture intrusion problems and enhance the facade’s energy efficiency and aesthetic appeal.
• Remove and Reclad: New cladding offers a cost-efficient solution for deteriorated exterior walls beyond repair.

Sto’s Comprehensive Repair Guide

Sto’s Comprehensive Repair Guide addresses 30 common problems affecting EIFS, stucco, concrete, and masonry with step-by-step illustrated solutions.

Click here to download Sto’s Repair Guide.

Sto’s Endless Aesthetic Options

Sto provides the aesthetic flexibility to replicate any historic facade with complete design freedom in endless texture, color and material choices. Sto’s newest finishes, StoCast prefabricated resin cast shapes, offer the ability to replicate historic brick or wood facades with a high-efficiency, tested and code-compliant Sto wall system. Sto Studio can also assist with suggestions on materials, colors, and textures to help preserve your historic building’s architecture with an attractive, high-performing, sustainable, fully-engineered cladding system.

Sto Studio

Sto Studio can assist your design process to ensure that your historic facade restoration will attain its maximum potential. We work to create a complete facade concept, including color and material options, to preserve the original character and aesthetics of the building. Additionally, we generate a series of color renderings that will help determine the most acceptable facade to preserve the cultural architecture of the building.

Restoration of the Lido Beach Towers, Long Island, NY USA

Restoration of the century-old Lido Beach Towers condominium community preserved its original architecture. It also showcases StoTherm® ci Lotusan® EIFS potential as a retrofit method for deteriorating buildings. The aesthetically pleasing second skin approach of EIFS tremendously improved the structure’s sustainability and energy efficiency.

StoTherm® ci

Sto’s continuous insulation wall system, StoTherm ci, is an energy-efficient, high-performance wall cladding. It combines proven components: StoGuard® (a water-resistive air barrier), StoTherm® insulated cladding and drainage, and allows for the use of a wide variety of Sto textured finishes, Sto Specialty finishes, or StoCast surface components.

Best Practices for Facade Restoration for Preserving Architecture

The best practices for facade restoration should preserve the structure’s architecture while repairing and retaining the original building’s aesthetic features. It should also allow new equipment and technologies to meet applicable codes, ensure occupants’ safety and comfort, and protect the environment through sustainable building products and practices.

Don’t hesitate to contact the Sto professionals for more on how our A.R.T. of reStore™ solutions and Sto Studio can help you with facade restoration and preserving architecture.

The post The Importance of Facade Restoration for Preserving Architecture appeared first on Sto Corp..

• Fully engineered wall system that includes air and water-resistive barrier and continuous insulation
• Energy efficiency
• Fire-resistance
• A low-maintenance structure

EIFS also offers versatile, attractive, and sophisticated exterior finishes. Periodically, EIFS finishes require cleaning to remove dirt, algae, or mildew that accumulates on the surface or recoating to refresh the look of the cladding or change the color. Choosing the suitable coating will determine how often you need to maintain the EIFS.

Benefits of EIFS Painting (Recoating)

Properly painting EIFS can add several significant benefits to a building’s exterior

• Aesthetic Versatility: You can paint EIFS with endless colors and textures.
• Longevity: EIFS paint creates a long-lasting, new, and fresh appearance with lasting weather- and wind-proofing protection.
• Flexibility: EIFS elastomeric paint coating can expand and contract seven times its original size in a flat sheen appearance.
• Easy Maintenance: You can quickly repair tiny cracks from settling, and they do not peel, like paint on wood.

Eight Tips for a Successful EIFS Painting Project

As with any cladding, EIFS also needs routine maintenance. Choosing the right coating will determine the maintenance schedule. Fresh paint will improve the structure’s curb appeal, increase resale value, and attract clients and tenants. In addition, due to the complexity and importance of the proper application of EIFS paint, we strongly recommend hiring an experienced, qualified EIFS paint professional.

1. Gather Your Tools and Materials Before Starting

Tools

• Caulk gun
• Extension ladder
• Paint brushes
• Paint roller cage
• Pressure washer or garden hose
• Roller covers (thick-napped)

Materials

• Acrylic exterior caulk
• Polyurethane exterior caulk
• Acrylic latex exterior paint, flat finish

2. Inspect the Building

1. Check the EIFS for stress cracks (due to settling), particularly around the windows and doors.
2. Check the gutter system and repair it if needed. An ineffective gutter system can lead to discoloration or deterioration of the EIFS.
3. Make sure the sprinkler system doesn’t directly hit the EIFS.

3. Clean and Gently Pressure Wash the Building

Apply a product or use a recommended cleaning method for EIFS, then gently rinse off with a pressure washer (on its lowest setting) or a garden hose. Applying too much water pressure to EIFS can harm the finish or allow water to infiltrate. NOTE: Mix cleaners and detergents according to the manufacturer’s directions.

Safe products and methods for cleaning EIFS:

• Specialized EIFS cleaner
• Light detergent like dish soap
• Water and vinegar
• Diluted bleach
• Borax
• Pressure washer on low setting
• Soft-bristled brush

Products and methods not safe for cleaning EIFS:

• Heavy duty paint
• Paint or rust-removing solvent not meant for EIFS
• Sandblasting
• Pressure washer on high settings
• Steam
• Do not use abrasive cleaning techniques or caustic chemicals, which will permanently damage the finish

4. Repair the EIFS

For cracks larger than 7 millimeters, fill the voids with an elastomeric exterior caulk to create a texture similar to the rest of the surface. In addition, repair and seal with caulk around the doors, windows, and other projections.

5. Only Use Paints Specifically Made for EIFS

Successfully painting an EIFS wall requires the right coating or paint, like those available from Sto Architectural Coatings: traditional Acrylic, Elastomeric, Sto iQ Technology, and Specialty Aesthetic coatings. In addition, select flat, low-sheen colors for EIFS, and avoid high-gloss.

StoColor® Acryl Plus and Flat Coatings

Acrylic-based, high-performing StoColor® Acryl Plus (satin sheen) and StoColor® Acryl Flat coating for vertical above-grade applications come in any color from the Sto Color palette. Both coatings offer unique features that enhance their durability and lifespan when used over prepared concrete, masonry, plaster/stucco and EIFS.

StoColor® Acryl Plus provides excellent protection against the following:

• Wind-driven rain
• Severe sun, heat, humidity, salt, dirt, and rain
• Salts and environmental pollutants.
• Blistering and mold and mildew growth due to its high permeability
• Fade resistance

StoColor® Acryl Flat offers protection against the following:

• Protects against severe weather conditions: sun, salt, heat, humidity, rain, and dirt
• Vapor permeable resists mold and blisters caused by moisture
• CO2 diffusion resistance, which protects against steel corrosion

Sto Elastomeric Coatings

The high-elongation properties of Sto Elastomeric coatings make it an excellent choice for EIFS painting. Sto Elastomeric coatings:

• Cover hairline cracked caused by thermal changes in the substrate
• Resist wind-driven rain and water absorption on vertical surfaces
• Provide superior UV resistance
• Curtail mold and mildew growth

Sto iQ Technology

Nature-inspired Sto iQ Technology Coatings offer superior functionality and durability and will keep the facade clean, dry, and bright to reduce maintenance.

• StoColor® Lotusan®, with Lotus-Effect® technology, offers super hydrophobic and self cleaning properties for EIFS wall systems.
• StoColor® Dryonic®, with its quick drying properties, provides optimum resistance to algae, fungi, and weathering, protecting an EIFS’s buildings’ color, material, and original design for the lifetime of the structures.

Specialty Aesthetic

Specialty Aesthetic coatings create unique aesthetics to elevate a building’s design: StoColor® Metallic, StoColor Wood Stain, StoTique (antique look), and StoColor® Texture.

6. Applying Paint to EIFS

Applying Sto Architectural Coatings for new or recoating wall surfaces will preserve your building’s value by providing a breathable, durable, and attractive layer of protection against environmental elements. Application may vary by coatings or substrate condition.

• Apply only to:
  • Sound and clean, dry, properly prepared, frost-free surfaces.
  • At ambient and surface temperatures of 40°F (4°C) and rising, and below 100°F (38°C).
• Do not apply:
  • Over damp surfaces or during rain, hail, or snow events or if rain, hail, or snow is imminent.
  • At a surface temperature of less than 5°F (2.8°C) above the ambient dew point temperature
  • At below grades or in areas subjected to hydrostatic pressure, water immersion, ponding, or puddling
  • on wood or metal surfaces
• Prepare or prime EIFS substrate according to Sto primer product bulletin.
• Apply in two uniform coats by brush, roller, or with proper spray equipment.
• Apply coating in a continuous application – do not overcoat. Work away from a wet edge or architectural break to eliminate cold joints. Back roll open texture surfaces, like concrete masonry.
• Allow sufficient time for drying between coats.

Additional Tips for Successful EIFS Painting:

• Avoid heavy-duty paints that may seal the EIFS and create a vapor barrier that will trap moisture in the building envelope. These paints may also contain powerful solvents that can erode EIFS.
• Never add color additives to the EIFS stucco mixture because future repairs due to small cracks from settling will not match the exterior color. Painting the exterior of EIFS after installation will ensure uniform color when repairing the exterior.
• Colors with light reflectance values (LRV) of 20 or greater are generally recommended for EIFS systems that do not incorporate mineral wool insulation.

7. Clean Up

Immediately clean tools and equipment with water after use to avoid material drying, which will require mechanical removal.

8. Maintain EIFS

Maintaining and adequately cleaning EIFS will increase its lifespan and beauty for years. Sto recommends annual inspections of the EIFS to look for cracks, discoloration, or moisture issues and to touch up as needed.

Sto Corp. products helped revive the former Ocean Village, now the Arverne View, by improving its energy efficiency and curb appeal:

Sto Products:

• StoColor® Acryl Plus and StoColor® Silcolastic (on its balcony)
• StoTherm® ci Lotusan®: Exterior continuous insulation wall system
• StoLit® Lotusan®: Tintable ultra-hydrophobic textured wall finish with superior self-cleaning properties
• StoGuard®: Fluid applied air and water-resistive barrier

Elastomeric, silicone-enhanced StoColor® Silcolastic decorative coating waterproofs, resists dirt and mildew, and bridges hairline cracks.

You can use it to protect vertical EIFS, concrete, stucco, masonry, or previously acrylic-coated smooth/textured surfaces. Its roller and spray application creates a smooth finish in various colors, making it easy to improve a substrate’s appearance quickly. However, Sto recommends avoiding dark-colored coatings over using foam plastic insulation. Instead, select finish colors with a lightness value of 20 or greater.

Benefits of StoColor® Silcolastic

• Silicone-enhanced StoColor® Silcolastic resists dirt and mildew growth better than standard acrylic elastomeric coatings.
• Vapor permeability allows the substrate to breathe naturally, which resists the blistering caused by trapped vapor.
• Weatherproofing features include:
  • Repels water
  • Provides hot and cool temperature stability
  • Protects against ultraviolet light
• Easy application increases job-site productivity.
• Low VOC contributes to a safe job site and protects the environment.
• Reusable tools clean up with only water, so there is no need for hazardous solvents.
• Available in Sto’s standard colors and custom colors to match existing project colors.

Note: The substrate’s pH, texture, absorption, and desired aesthetic look may require an application of StoPrime Sand primer over the substrate.

StoColor® Lastic

Elastomeric, acrylic-based StoColor® Lastic decorative coating waterproofs, and bridges hairline cracks. You can use it to protect vertical EIFS, concrete, stucco, masonry, or previously acrylic-coated smooth/textured surfaces.

Benefits of StoColor® Lastic:

• Acrylic base provides excellent adhesion, weather-resistant, and color stability.
• Roller and spray application creates a smooth finish in various colors, making it easy to improve a substrate’s appearance quickly.
• Flexibility bridges hairline cracks.
• Weatherproofing features include:
  • Repels water
  • Provides hot and cool temperature stability
  • Protects against ultraviolet light
• Vapor permeability allows the substrate to breathe naturally, which resists blistering caused by trapped vapor.
• Easy application increases job-site productivity.
• Low VOC contributes to a safe job site and protects the environment.

Tip for a Successful EIFS Paint Project – Use Sto Architectural Coatings

Sto Architectural coatings will help you successfully paint your EIFS building to significantly improve and freshen its aesthetics, increase its resale value, attract customers and tenants, and protect the integrity of the building. However, the project’s success depends on properly preparing the substrate and following the manufacturer’s instructions.

For more on the do’s and don’ts of EIFS painting, contact a Sto professional today at (800) 221-2397.

The post The Do’s and Don’ts of EIFS Painting: 8 Tips for a Successful Project appeared first on Sto Corp..

B-Line Condominiums in Toronto, Canada, utilized StoPanel® Classic NExT ci and StoCast Wood, StoCast Brick, StoSignature® Stone, and StoColor® Acryl Plus to achieve modern, multi-facade aesthetics with continuous insulation.

Modern-Sustainable Buildings Need Unique Aesthetics and Continuous Insulation

Stricter building codes and customers’ demands for sustainable and aesthetically pleasing facades prompt architects and builders to aim for structures that balance beauty, durability, and efficiency.

Why Building Aesthetics Matter

The facade sets the building’s style, from a welcoming front with warm brick, expansive windows, and a large porch to a distinctive facade with glass cladding and asymmetrical windows. An aesthetically pleasing, well-designed building can help attract clients and customers. It can also improve the building’s resale value.

Why Sustainability Matters

Before deciding on a building’s outside aesthetics, the architect and builder must ensure the building’s design includes all the control layers (e.g., CI thermal layer) needed to ensure an energy-efficient and durable building with excellent indoor environmental quality (IEQ) and manageable long-term maintenance, repair, and utility costs.

The Five Control Layers of a Sustainable-Durable Building

Achieving a sustainable building envelope that protects a building’s occupants and integrity requires applying various control layers. When properly designed, integrated, and tested, the five control layers of a building’s exterior will repel rain, wind, snow, ultraviolet (UV) rays, temperature changes, etc., to ensure an efficient, durable, and safe building:

1. A thermal barrier (most effectively achieved with CI) lessens energy loss and stops thermal bridging.
2. An air- and water-resistive barrier reduces energy and condensation loss by minimizing the uncontrolled airflow from the wall system.
3. A water penetration barrier flashed to the cladding’s exterior prevents water from infiltrating the wall cavity.
4. A vapor retarder limits condensation by controlling water vapor flow as it shifts from high to low-pressure spaces.
5. A durable, water-shedding facade protects the exterior wall against pollutants, environmental elements, impacts, UV rays, and more.

Continuous Insulation, Thermal Barrier Control Layer

Evolving consumer demands and energy standards have made installing continuous insulation (CI) in exterior walls a standard practice. Thermally insulating with CI outside the wall eliminates thermal bridging and helps maintain the building wall cavity’s temperature above the dew point, to effectively minimize condensation caused by water vapor diffusion.

In addition, for 30-plus years, the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE 90.1) and the International Energy Conservation Code (2021 IECC) have mandated CI, as defined by the ASHRAE 90.1-2010:

• CI covers all structural components without thermal bridges other than fasteners and service openings. Installers must apply CI on the exterior or interior of any opaque building envelope surface.

Sto Products Achieve Continuous Insulation and Aesthetics

Sto Corp’s high-performance architectural coatings and finishes applied to Sto CI wall systems (StoTherm® ci, StoVentec®, and StoPanel®) offer architects and builders distinctive-stunning aesthetics in many colors, sizes, and textures to create sustainable, energy-efficient, and safe buildings.

Sto’s High-Performance Finishes

Sto’s high-performance finishes offer architects complete design freedom with a wide selection of finishes in many color and texture options, including flexible brick and wood resin cast shapes. Sto manufactures durable finishes to the highest quality standards to resist dirt and water, in order to protect a building while also providing attractive curb appeal.

StoCast Flexible Resin Cast Shapes

StoCast flexible resin cast shapes enhance performance functionality.

Specialty Aesthetic Finishes

Specialty finishes offer the look of other materials with the benefit of cost savings and additional performance.

StoSignature

StoSignature finishes offer an endless blend of color, profiles, texture, and effects utilizing Sto products.

Sto iQ Technology

Inspired by nature, Stolit® Lotusan offers superior functionality and durability.

Traditional Finishes

Traditional finishes offer a variety of textured wall finishes that meet the performance needs of the building.

Sto’s Architectural Coatings

Sto’s architectural coatings provide all the features of high-quality paints:

• Superior protection against fading, crack bridging, mold, and mildew
• Self-cleaning properties
• Low VOC
• Vapor permeability

Our coatings come in multiple sheens and textures, or we can tint them in various colors to fit any exterior design requirements.

Sto iQ Technology

Nature-inspired Sto iQ Technology Coatings provide superior functionality and durability and are designed to keep the facade dry, clean, and bright to lessen maintenance.

Specialty Aesthetic

Specialty Aesthetic coatings create unique aesthetics to enhance a building’s design.

Traditional

Traditional coatings preserve a building’s value by serving as a durable, breathable, attractive layer of protection.

Elastomeric

Elastomeric coatings bridge hairline cracks and enhance weather resistance.

StoTherm® Continuous Insulation Cladding Systems

StoTherm® ci cladding systems combine CI, air and water-resistive barriers, drainage, and many textured finishes and coatings to produce sustainable, high-performance wall cladding. The durable and attractive design creates maximum curb appeal and saves money through reduced energy bills.

This Sto project showcases StoSignature Brick 10 and StoSignature Stone 10

StoSignature™ Finishes and StoTherm® ci wall system create an iconic exterior for a new multi-family complex.

StoVentec® Rainscreen®

StoVentec® Rainscreen® systems are a complete, fully-tested, and code-approved, back-ventilated wall system that provides strong mineral wool continuous insulation (CI) and an excellent air and moisture barrier.

StoVentec® Masonry Veneer Facades

The drained, fully-engineered, and back-ventilated StoVentec® Rainscreen® complete wall system features a thin brick facade, CI, sub-construction, and a continuous air and moisture barrier.

Hotel Messerschmitt in Germany utilized StoVentec® Masonry Veneer Facades.

StoVentec® Glass

Back-ventilated and open joint drained StoVentec® Glass combines superior air and weather tightness with exceptional thermal performance and non-combustible continuous exterior insulation and StoVentec® Glass Panel to produce an advanced high-performance wall system.

Zislis Residence: A successful entrepreneur chose the StoVentec® Glass Rainscreen® System in Pastel Blue, Light Blue, and Azure Blue to create an impressive, eye-catching home for his family.

StoVentec® Render

The back-ventilated and drained StoVentec® Render Rainscreen® wall system provides superior air and weather tightness with non-combustible continuous exterior insulation for excellent thermal performance and fire protection.

The StoVentec® Render carrier board combines lightweight and high compressive strength, for seamless walls and curved surfaces.

Sto Panel® Technology

Sto’s prefabricated Sto Panel® Technology finished exterior wall panels will create a high-performing building envelope. The StoPanel® system panels contain cold-formed metal framing and other vital components, including CI, moisture and air barrier, glass mat sheathing, sub-framing, and beautiful facade aesthetics.

Sto Panel® Technology branded, proven, tested, and warranted prefabricated finished wall panel designs offer the building industry a recognizable, high-quality standard for producing and installing commercial building exterior walls.

Inspira Medical Center & Medical Office Building utilized StoPanel® Metal ci, Classic NExT ci, and StoPanel® Brick ci using Stone Veneer to create a multi-textured facade.

Achieve Continuous Insulation and Aesthetics with Sto High-Performing Products

Customers’ demands and evolving building codes for more sustainable and eye-catching-aesthetically pleasing facades prompt the building industry to balance beauty, durability, and efficiency in their construction designs and construction.

Sto Corp’s high-performance finishes and architectural coatings applied to Sto continuous insulation wall systems (StoTherm® ci, StoVentec®, StoPowerwall® ci, and StoPanel®) provide architects and builders with an efficient solution to achieving continuous insulation and beautiful aesthetics to create energy-efficient, sustainable, and healthy buildings.

Contact our helpful Sto professionals today for more on achieving continuous insulation and beautiful aesthetics for your commercial building.

The post The Perfect Combination: How to Achieve Both Aesthetics and Energy Efficiency with Continuous Insulation appeared first on Sto Corp..

The National Interagency Fire Center reported 68,988 wildfires in 2022 (consuming 7,577,183 acres), compared to 58,985 wildfires in 2021 (consuming 7,125,643 acres). Many scientists blame the increased wildfires on higher global temperatures, drier forests, and early snow melts due to climate change. Protecting a building and its occupants from dangerous fires requires non-combustible construction.

Maggie’s Center in London utilized StoTherm® Mineral ci, made with non-combustible mineral wool insulation for their new, field-built healthcare center.

What is Non-Combustible Construction?

Non-combustible construction includes non-combustible materials, like mineral wool insulation, incorporated into the building’s structural elements, including structural framing, roof, floor construction, supporting features, and wall systems.

A building’s structural elements and fire-resistance ratings determine its construction type and classification, including non-combustible construction.

An Ideal Solution to Non-Combustible Wall Construction

StoTherm® ci Mineral creates non-combustible wall systems for residential, commercial, industrial, and institutional structures. StoTherm® ci Mineral incorporates non-combustible, mineral wool exterior CI into its high-performing, durable, and sustainable cladding system that passes NFPA testing.

Non-Combustible Construction Types and Classifications

Three governing bodies provide building construction types and classifications:

1. The National Fire Protection Association (NFPA) defines construction types and classifications in the NFPA 220, Standard on Types of Building Construction
2. The International Building Code (IBC) defines construction types and classifications in Chapter 6, Types of Construction.
3. The Insurance Services Office (ISO) defines construction types and classifications on its website’s Construction Briefs page.

Type I and II – Fire Resistive, Non-Combustible Construction

• NFPA: Firewalls, structural elements, floors, walls, arches, and roofs with approved non-combustible or limited combustible materials
• IBC: Construction types with non-combustible building elements
• ISO Class 6 (Fire Resistive): The non-combustible or masonry exterior bearing walls and load-bearing portions of exterior walls. However, exterior nonbearing walls and wall panels may be combustible, slow-burning, or with no fire-resistance rating.
• ISO Class 5 (Modified Fire Resistive): Building construction consists of fire-resistive materials like masonry and protected steel materials not less than 4 inches thick
• ISO Class 4 (Masonry Non-combustible): Masonry non-combustible construction consists of concrete blocks or reinforced masonry combined with steel framing
• ISO Class 3 (Non-combustible): Buildings with non-combustible or slow-burning exterior walls, roofs, and floors

Type III – Ordinary

• NFPA: Portions of the exterior walls and structural elements with approved non-combustible or limited-combustible materials- firewalls, walls, arches, interior structural elements, floors, and roofs entirely or partially made of wood
• IBC: Exterior wall construction made of non-combustible materials and the interior building elements made of any material permitted by this code
• ISO Class 2 (Joisted Masonry): Masonry or fire-resistive constructed buildings with exterior walls rated for not less than one hour and with combustible roofs and floors

Type IV – Heavy Timber

• NFPA: Firewalls, exterior walls, interior bearing walls, and structural elements made of approved non-combustible or limited combustible materials. Solid or laminated wood interior structural elements without concealed space and with allowable dimensions of the NFPA code
• IBC: Construction with exterior walls made of non-combustible materials and interior building elements made of solid or laminated wood without concealed spaces

Type V – Wood Frame

• NFPA: Construction with structural elements, walls, arches, floors, and roofs made entirely or partially of wood
• IBC: Construction with structural elements, exterior walls, and interior walls made of code-permitted materials
• ISO Class 1 (Frame): Buildings with exterior walls, floors, and roofs made of combustible material

Mineral Wool Insulation for Non-Combustible Construction

Mineral wool continuous insulation contributes to non-combustible construction and meets stringent code requirements for energy-efficient building design.

Initially, manufacturers used mined natural rocks to make mineral wool. However, over the years, lower-cost alternatives, like a steel by-product (blast furnace slag) made of spent iron ore and limestone, took natural rock’s place.

Sustainable Slag

Using slag allowed mineral wool to achieve one of the industry’s highest recycled contents, thereby minimizing its environmental impact. The mineral wool industry recycles millions of tons of waste slag every year. Unlike foam plastic insulation, mineral wool does not use blowing agents or flame retardants in its production. In addition, after one month of use, one pound of mineral wool insulation saves the same amount of energy used in its manufacture.

Manufacturing of Mineral Wool

Manufacturers melt rock and slag in cupola furnaces at temperatures above 2,600 ℉, then spin the molten lava into fibers using compressed air and high-speed spinning wheels. The manufacturing process creates mineral wool fibers that can withstand high temperatures, which gives them excellent fire-resistant properties.

The Benefits of Mineral Wool Continuous Insulation

Builders can place mineral wool continuous insulation behind combustible and non-combustible cladding types ranging from high-pressure laminate and fiber cement to brick veneer and single-skin metal panels. Mineral wool CI has several features and benefits that often make it a good choice for a building design: fire performance, thermal performance, moisture resistance, sound attenuation, durability, and permeability.

Mineral Wool CI Contributes to Non-Combustible Construction

Mineral wool insulation will not burn or release harmful smoke and hot gasses during a fire, which makes it an excellent choice for multistory construction. For example, builders often use semi-rigid mineral wool in fire-rated curtain wall systems to minimize the passage of hot gasses and flames from the floor of origin to the above floors.

Mineral wool CI in cavity walls and open-joint facade systems can significantly limit the spread of fire across the exterior wall surfaces of a building.

Mineral Wool Provides Superior Fire Performance

The ASTM E119 test determines the fire performance of building materials based on time and fire temperature. The chart below compares the fire performance of different products. It illustrates that only mineral wool remained intact after five hours and temperatures over 2,000 ℉.

NFPA 285 Fire Test

Manufacturers use the NFPA 285 fire test as an intermediate-scale wall system fire test to measure what happens during a fire when using combustible materials such as foam plastic ci, air barriers, or claddings as part of the exterior wall system. The NFPA 285 test aims to limit fire spread through exterior wall surfaces, to enhance occupant safety and protect the building. Mineral wool is exempt from this test because it is a non combustible material.

The International Building Code (IBC) has recognized NFPA 285 in multiple sections for several years. However, it gained increased awareness when energy standards, like the ASHRAE 90.1, began prescribing CI and requiring air barriers, which are sometimes combustible.

Thermal Performance of Mineral Wool

Mineral wool insulation, with an R-value of 4.3 per inch, can easily meet the specified R-value requirements of the ASHRAE 90.1 to stop thermal bridging and establish an effective R-value in a wall assembly. Moisture exposure will not diminish mineral wool’s R-value. Declining temperatures cause the thermal conductivity of mineral wool to decrease, which improves its R-value.

Moisture Resistance of Mineral Wool

The engineering of mineral wool repels and drains moisture in CI applications. In addition, the design of mineral wool can handle condensation, driving rain, and other moisture on the wall assembly.

Sound Attenuation of Mineral Wool

Mineral wool products provide sound attenuation by blocking and absorbing sound that passes between partition walls and floor/ceiling applications, to improve the indoor environmental quality for the building’s occupants.

Durable Mineral Wool

Durable mineral wool CI repels water and resists UV rays, sleet, rain, snow, ice, and other weather-related events.

Permeable Mineral Wool

Air and vapor-permeable mineral wool CI (perm of 50) allows water/condensation/moisture within the wall cavity to dry towards the exterior.

StoTherm® ci Mineral for Non-Combustible Construction

The StoTherm® ci Mineral EIFS System incorporates the following features to create an advanced cladding system for non-combustible construction with superior thermal performance and advanced acoustic dampening:

• The Sto Thermo Dowel – a pre-assembled fastener and washer designed to minimize thermal conductivity
• Non-combustible, mineral wool exterior CI provides a thermal control layer that resists fire and temperatures exceeding 2000°F (1093°C)
• Continuous-seamless air, vapor, and water-resistant barrier from a single source
• Sto’s high-performance finishes in unlimited finish color selections and multiple textures

StoTherm® ci Mineral complies with crucial fire standards for combustibility and fire resistance:

• NFPA 220: Non-combustible insulation as defined by NFPA 220
• NFPA 285: System complies with mandates for use on all types of construction without height limitation
• NFPA 268: System does not ignite with exposure to radiant heat and complies with requirements for use on all types of construction without setback or height limitations
• ASTM E119: Maintains hourly fire resistance rating of concrete masonry, concrete, and non-load bearing steel frame wall systems
• ASTM E84: Insulation has zero flame spread, zero smoke development

Substrate: Glass mat gypsum sheathing in compliance with ASTM C1177, code-compliant OSB or plywood sheathing, concrete or concrete masonry, existing structurally sound, uncoated brick or masonry wall construction:

1. Air and Water-Resistive Barrier: Sto Gold Coat®
2. Adhesive: Sto BTS® Plus
3. Insulation: Owens Corning Thermafiber® CI-C SC18
4. Attachment System: Sto Thermo Dowel with Sto Thermo Cap Wool
5. Reinforcing Mesh: Sto Mesh (embedded in Sto BTS Plus)
6. Base Coat: Sto BTS® Plus – at least two coats
7. Primer: StoPrimer – Sand or Smooth (optional)
8. Aesthetic choices: Sto Textured Finishes, Sto Custom Cast Finish:
Brick or Wood, Sto Signature Series, and Sto Specialty Finishes

StoTherm® ci Mineral for Non-Combustible Construction

Builders and architects can use StoTherm® ci Mineral for residential, commercial, industrial, institutional, and more for wall non-combustible construction – vital to protecting buildings and occupants from increasing wildfire seasons. StoTherm® ci Mineral incorporates non-combustible, mineral wool exterior CI to create a high-performing cladding system for non-combustible construction with excellent thermal performance.

For more on non-combustible construction with mineral wool systems, contact our Sto professionals today at (800) 221-2397.

The post Exploring Non-Combustible Construction: What You Need to Know appeared first on Sto Corp..

StoTherm® ci is a single-source, fast-to-install approach to commercial construction. It combines CI, water and air-resistive barrier, drainage, and many finish options to create a high-performing, sustainable, attractive wall cladding. The durable and unique system will help create a more sustainable society for future generations.

Why We Need Airtight Buildings

In the U.S., commercial buildings account for 19 percent of the primary energy consumed. Constructing airtight buildings will save money and combat fossil fuel dependency. Airtightness also reduces CO2 emissions, a known cause of global change and climate change.

Achieving Airtightness in Buildings with Air Barriers

Air barriers include one or more products that create a continuous plane around a building or home, to prevent uncontrolled air, moisture, and heat flow in and out of the building envelope. The building enclosure includes the above- and below-grade components that physically separate the structure’s interior and exterior environments.

High-Performing air barriers should include these four vital components:

1. Continuous over the entire building enclosure

2. Airflow impermeability

3. The stiffness and strength to resist forces acting on them during and after construction

4. Structural durability over the expected lifetime of the structure

When tested according to ASTM E 2178, an air barrier’s air permeance should not exceed 0.02 L/(s·m²) at a pressure difference of 75 Pa (0.004 cfm ft2 at a pressure difference of 1.56 lb ft2). Air permeance represents air flow through a material. In contrast, air leakage flows through holes and gaps.

Air Barrier Code Requirements

The International Building Code (Section C402.5.1) and International Residential Code (Table R402.4.1.1) list code requirements for commercial and residential structures.

Five Tips for Achieving Airtightness in Buildings

Architects, builders, and developers can achieve airtightness in buildings by utilizing innovative materials and methods.

1. The Whole-Building System Approach to Airtight Buildings

Implementing the whole-building system approach treats a building as a single energy system, where each component impacts the entire building’s airtightness and efficiency. During the design phase, the building team works together to select construction materials and systems that maximize airtightness and minimize energy use throughout the building envelope.

2. Install an All-In-One Continuous Insulation Wall System

Achieving airtightness requires CI in the exterior walls. The ASHRAE 90.1 and the 2021 IECC require CI, as defined in the ASHRAE 90.1-2010.

Fortunately, energy-efficient, code-compliant exterior insulation and finish systems (EIFS), like StoTherm® ci Wall Systems Drainable EIFS, provide a superior solution for achieving CI and air tightness.

StoTherm® ci Wall Systems Drainable EIFS

StoTherm® ci facade systems combine continuous insulation (CI), air and water-resistive barrier, drainage, and various surfaces and textured finishes to create a sustainable wall system. The unique and durable system saves money by minimizing energy bills and sustains curb appeal. Sto offers a variety of StoTherm® ci cladding systems to meet every need:

StoTherm® ci

StoTherm® ci includes the StoGuard® air and water-resistive barrier system and energy-efficient EPS insulation.

StoTherm® Mineral ci

The StoTherm® ci Mineral System includes a non-combustible mineral wool exterior CI and air and water-resistive barrier with Sto’s quality finishes.

StoTherm® ci XPS

StoTherm® ci XPS combines high R-value XPS insulation into the wall system and StoGuard® fluid-applied air and water-resistive barrier.

StoTherm® ci MVES

The StoTherm® ci MVES (masonry veneer engineered system) features manufactured masonry veneer in cultured stone, thin brick, natural stone, and ceramic tile, fully integrated seamless air and water-resistive barrier, and either EPS or XPS insulation.

StoTherm® ci HI-LM 180

The energy-efficient StoTherm® ci HI-LM 180 CI wall system includes StoTherm® insulated cladding, StoGuard® waterproof air and water-resistive barrier, and drainage over concrete masonry unit substrates. StoTherm® ci HI-LM 180’s engineering achieves the testing requirements for large and small missile impacts.

StoTherm® ci 1177- LM

StoTherm® ci 1177- LM exterior wall cladding provides seamless air and moisture resistance with CI, advanced drainage, and Sto Armor Mat XX Mesh for additional impact resistance and reinforcement over glass mat gypsum sheathing. StoTherm® ci 1177-LM meets the testing requirements for large and small missile impacts.

StoTherm® ci 1177-SM

The StoTherm® ci 1177-SM exterior wall cladding system includes seamless continuous insulation, air and water-resistive barrier with advanced drainage capabilities over glass mat gypsum sheathing.

StoTherm® ci HI-PLY

StoTherm® ci HI-PLY exterior wall cladding combines seamless moisture and air barrier with CI and advanced drainage over CDX exterior plywood sheathing.

3. Insulated Roofs

High-performing roofing insulation reduces heat loss during the winter by 25 percent. It also minimizes moisture intrusion through the roof and stops the growth of unhealthy and structurally damaging mold. In addition, cool and insulated roofs lower energy bills and enhance the building’s indoor environmental quality.

4. Windows and Doors for Airtightness

About 20 percent of heat loss happens through cracks in doors, skylights, and windows. Achieving airtightness should include ENERGY STAR-certified skylights, windows, and doors, to reduce heat loss by 25 to 50 percent. In addition, darkening windows can control glare and brightness from direct sunlight, and shades and louvers can block out the summer’s heat, but let the warmth in during the cold months.

5. Building Energy Modeling (BEM)

Building Energy Modeling (BEM) helps architects and builders achieve airtightness. BEMs use project-specific features like creating orientation, window location, weather, building methods and materials, and more. BEMs help to estimate a building’s energy efficiency and to meet energy codes. The BEM can also minimize building costs by identifying insulation levels needed to achieve performance targets cost-effectively and offset an expensive, higher-quality envelope by requiring a smaller HVAC system.

Achieve Airtightness in Buildings with Sto Building Products

Achieving airtightness in buildings requires architects, buildings, and developers to incorporate innovative methods and materials, like StoTherm® ci cladding systems.

An energy-efficient, code-compliant, durable, and attractive StoTherm® ci Wall System is a superior wall solution for achieving airtightness in buildings. Check out our Georgia King Village Case Study for a great example.

Contact our experienced representatives today at 1-800-221-2397 for more on how to achieve airtightness in buildings. To learn more about the benefits of using a building enclosure system, download, “The Case for Engineered Building Enclosure Systems“.

The post How to Achieve Airtightness in Buildings appeared first on Sto Corp..

Achieving net zero buildings requires commercial architects, builders, and developers to incorporate innovative technologies, like StoTherm® ci® continuous insulation (CI) wall systems (EIFS).

StoTherm® ci® is an all-in-one, quick-to-install approach to commercial construction. It combines CI, air and water-resistive, drainage, and numerous finish options to create a sustainable, high-performance, attractive wall cladding. The unique and durable system helps achieve net zero energy-efficient buildings, to decrease energy use, save money, and create a greener and more sustainable society.

Why We Need Net-Zero Energy-Efficient Buildings

In the U.S., commercial buildings account for 19 percent of the primary energy consumed. Building NZEBs will save money and combat our fossil fueldependency. NZEBs also lessen CO2 emissions, a known cause of climate change and global warming.

Energy Codes Guide Net Zero Energy Efficient Buildings

Building codes help to guide builders and architects to design sustainable NZEBs.

In the U.S., building teams use the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) Standard 90 and the International Energy Conservation Code (IECC) for design guidance of NZEB. Canadians refer to the National Building Code of Canada (NBC) and the National Energy Code for Buildings (NECB).

Nine Steps for Achieving a Net-Zero-Energy-Efficient Building

Architects, builders, and developers can achieve NZEB by utilizing innovative materials and methods.

1. The Whole-Building System Approach to NZEB

The whole-building system approach strives to construct NZEBs that efficiently use natural resources and lessen waste. The whole-building system approach treats a building as a single energy system, where each component impacts the entire building’s efficiency. During the design phase of an NZEB, the building team works together to select construction materials and systems that utilize renewable energy sources and minimize energy use.

The success of the whole-building system approach depends on all the building team members, including the architects, builders, developers, and engineers, participating in all parts of the structure’s design and construction.

2. Install an All-In-One Continuous Insulation Wall System

Achieving an NZEB requires the application of continuous insulation (CI) in exterior walls. The ASHRAE 90.1 and the 2021 IECC require CI, as defined in the ASHRAE 90.1-2010.

Fortunately, energy-efficient, code-compliant exterior insulation and finish systems (EIFS), like StoTherm® ci Wall Systems Drainable EIFS, provide a superior solution for achieving CI and NZEB.

StoTherm® ci Wall Systems Drainable EIFS

StoTherm® ci cladding systems combine CI, moisture/air barrier, drainage, and numerous surfaces and textured finish options to create a sustainable wall cladding. The durable and unique system sustains curb appeal and saves money by minimizing energy bills. Sto provides several StoTherm® ci cladding systems, including StoTherm® ci Hurricane Impact Systems.

StoTherm® ci

StoTherm® ci includes the StoTherm® and StoGuard® waterproof air barrier system, to protect against moisture intrusion and improve energy efficiency.

StoTherm® ci XPS

StoTherm® ci XPS combines high R-value XPS insulation into the wall system and StoGuard® fluid-applied moisture and air barrier, for water- and air-tight walls to ensure thermal efficiency and durability.

StoTherm® ci MVES

StoTherm® ci MVES (masonry veneer engineered assembly) features manufactured stone, masonry veneer in natural stone, and ceramic tile to meet building code requirements.

StoTherm® Mineral ci

The StoTherm® ci Mineral System combines a non-combustible mineral wool exterior CI and continuous air and moisture barrier with Sto’s high-quality finishes, for an advanced high-performance cladding assembly.

StoTherm® ci HI-CM 180

Energy-efficient, high-performing StoTherm® ci HI-CM 180 is a CI wall cladding system that includes StoTherm® insulated cladding, StoGuard® waterproof air barrier, and drainage over concrete masonry unit substrates. StoTherm® ci HI-CM 180’s engineering meets the testing mandates for small and large missile impacts.

StoTherm® ci 1177-SM

StoTherm® ci 1177-SM exterior wall cladding system includes a seamless moisture and air barrier with innovative drainage capabilities over glass mat gypsum sheathing. The engineering of StoTherm® ci 1177-SM achieves the testing mandates for small missile impacts.

StoTherm® ci 1177-LM

StoTherm® ci 1177-LM exterior wall cladding provides a seamless moisture and air barrier with CI, advanced drainage, and Sto Armor Mat XX Mesh for additional impact resistance and reinforcement compared to glass mat gypsum sheathing. StoTherm® ci 1177-LM’s engineering achieves the testing mandates for large and small missile impact performance on 16-gauge steel studs with gypsum sheathing.

StoTherm® ci HI-PLY

StoTherm® ci HI-PLY exterior wall cladding combines a seamless moisture and air barrier with CI and advanced drainage over CDX exterior plywood sheathing. Sto Therm® ci HI-Ply engineering achieves the testing mandates for large and small missile impacts.

3. Passive Solar Design

Passive solar design works with nature, resulting in lower energy use. Specifically, a building’s orientation on its site, and glazing placement, should take advantage of the Sun’s energy by minimizing or maximizing solar gains.

4. Windows and Doors of an NZEB

About 20 percent of heat loss happens through cracks in doors, skylights, and windows. An NZEB should include ENERGY STAR-certified skylights, windows, and doors, to reduce heat loss by 25 to 50 percent. In addition, darkening windows can control glare and brightness from direct sunlight and shades and louvers can block out the summer’s heat, but let the warmth in during the cold months.

5. Insulated and Cool Roofs for an NZEB

Insulated and cool roofs protect a building against solar heat in the summer and keep it warm in the cold months. These types of roofs also lengthen the roof’s service life and enhance indoor air quality and comfort. Dense roofing materials, like slate, tiles, or clay, can reflect the sunlight with light-colored or reflexive pigments.

High-performing roofing insulation lessens heat loss during the winter by 25 percent. It also minimizes moisture intrusion through the roof, and stops the growth of unhealthy and structurally damaging mold. Cool and insulated roofs lower energy bills and enhance the building’s indoor environmental quality.

6. Renewable Energy Systems

NZEB must produce as much energy as it uses with renewable energy systems, like small “hybrid” electric systems, solar photovoltaic (PV) panels, wind systems, or microhydropower.

7. NZEB Lighting

Lighting adds up to ten percent of a building’s annual electricity costs. Therefore, the NZEB design should include controls like dimmers, timers, or photocells that turn unused lights off in order to reduce energy use. Examples of energy-efficient lighting include halogen incandescent, light-emitting diodes (LEDs), and compact fluorescent lamps (CFLs).

8. High-Efficiency Ventilation Systems and HVAC

A building’s heating and cooling system accounts for a large portion of the structure’s energy use. Therefore, an NZEB should include energy-conserving, properly installed high-efficiency heating and cooling systems.

In addition, an NZEB requires an energy recovery ventilation system because the airtightness can trap pollutants. An energy recovery ventilation system also manages ventilation and lowers energy loss by transferring energy from outgoing conditioned air to fresh incoming air.

9. Building Energy Modeling (BEM)

Building Energy Modeling (BEM) helps architects and builders achieve NZEBs. BEMs use project-specific features like creating orientation, window location, weather, building methods and materials, and more. BEMs help to predict/estimate a building’s energy efficiency and to meet energy codes. The BEM can also minimize building costs by identifying insulation levels needed to achieve performance targets cost-effectively and offset an expensive, higher-quality envelope by requiring a smaller HVAC system.

Achieve Net Zero Energy Efficient Buildings Design with Sto Building Products

Achieving NZEB requires architects, buildings, and developers to incorporate innovative materials and methods, like StoTherm® ci cladding systems.

Energy-efficient, code-compliant, durable, and attractive StoTherm® ci Wall System Drainable EIFS are a superior wall solution for achieving CI, which is vital to the design of an NZEB.

Contact our experienced representatives today at 1-800-221-2397 for more on how Sto Building Products can help you achieve net-zero energy-efficient building.

The post Steps for Achieving Net Zero Energy Efficient Buildings appeared first on Sto Corp..

Building restoration of the exterior cladding can maximize a structure’s health with improved sustainability and indoor environmental quality (IEQ). Building rehab can enhance sustainability and IEQ, and provide several significant environmental, occupant, and financial benefits.

Healthy, sustainable construction protects the environment by:

Saving energy

• Building retrofit allows for addition of more energy-efficient products, like wall and cladding systems, windows, doors, etc.
• Building rehabilitation reduces energy use that would be needed for demolition and new construction.
• It allows for reuse of embodied energy in building systems and materials.

Recycling of building materials

• Less need for new materials, saving natural resources
• Minimizes construction and demolition debris, so reduces landfill waste
• Restoration reduces hazardous material debris
• Improves building durability

Sustainable design improves the durability and longevity of a rehab building, to preserve natural resources and lessen maintenance costs by promoting fire-, wind-, moisture-, and termite resistance, and save money through lower repair, maintenance, and replacement.

Healthy, sustainable buildings improve the IEQ by:

Enhancing Indoor Air Quality

• Decreases moisture infiltration that can lead to unhealthy mold and mildew
• Avoids materials with high volatile organic compounds (VOC) emissions that can cause eye, nose, and throat irritations, headaches, nausea, and damage to the central nervous system, kidney, and liver

Improving Comfort

• Improves the comfort level of the occupants by stabilizing temperatures within the building

Economic Advantages of Retrofitting and Restoring

• Increases real estate values
• Allows for quick occupancy of existing usable space
• Often costs less than new construction
• Commercial building restoration that improves sustainability and IEQ can reduce employee sick days and improve their productivity.

Sto’s A.R.T. of reStore® Program

Successfully achieving all of these benefits typically requires the help of qualified and experienced building restoration services or building restoration companies that implement innovative solutions for the restoration of buildings and monuments, like Sto’s The A.R.T. of reStore® program. Our easy-to-apply, safe, durable, and non-toxic products can also maximize the health and energy efficiency of a building by creating a tight building envelope that limits air and moisture infiltration.

The Four Treatment Levels of Restoration

In 1966, following the National Historic Preservation Act (NHPA) passage, the Secretary of the Interior developed the Standards for the Treatment of Historic Properties to guide historic building preservation practice and design. Moreover, all grant-in-aid projects assisted through the National Historic Preservation Fund mandate the Standards for the Treatment of Historic Properties, as described in 36 CFR 68.

The Standards cover four treatment levels of restoration for historic properties: preservation, rehabilitation, restoration, and reconstruction. The treatment level depends on the property’s historical significance, proposed use, physical condition, and intended interpretation. All levels permit code-required work to make properties functional, including the sensitive and limited upgrading of plumbing, mechanical, and electrical systems.

1. Preservation

Preservation involves installing measures needed to sustain the materials, existing form, and integrity of a historic building. The work involves steps to protect and stabilize the structure, focusing on ongoing maintenance and repairs of historical components and materials rather than new construction and large-scale replacement. Preservation does not involve new exterior additions.

2. Rehabilitation

Rehabilitation comprises repairing, adding, and altering a historic structure while preserving those components or portions which contribute to its architectural, historical, or cultural values. Rehabilitation permits the replacement of deteriorated features; however, the replacements must match the old design, color, texture, and, if possible, materials.

3. Restoration

Restoration should accurately represent a building’s character, form, and components from a particular time. To accomplish this, a builder must first remove building components from other periods and then reconstruct the removed parts to match the restoration period. In addition, builders can replace deteriorated features with new components that match the original design, color texture, and, if possible, materials.

4. Reconstruction

Reconstruction includes designing and constructing a new structure to match the aesthetics or appearance of a building from a specific historical time.

Sto’s Complete Approach to Building Restoration and Rehabilitation

Sto’s A.R.T. of reStore® offers an innovative solution that provides all the services and materials required to restore and maintain your building’s facade. Our product’s engineering can also improve the building’s health, energy efficiency, occupant comfort level, and safety.

ReStore® provides four levels of restoration, from superficial dirt and mold removal to a complete facade restoration or rehabilitation with all the needed products and support:

1. Clean and Recoat: A simple program to remove dirt, mildew, and mold, while updating or refreshing the facade’s color.
2. Repair and Refinish: A program to repair minor damage to EIFS facades or stucco before it becomes a bigger problem.
3. Overclad: A cost-effective program to fix moisture intrusion problems and enhance the facade’s energy efficiency and aesthetic appeal.
4. Remove and Reclad: New cladding is a more efficient solution for exterior walls deteriorating beyond repair.

Sto’s Comprehensive Repair Guide

Sto’s Comprehensive Repair Guide includes 30 common problems affecting EIFS, stucco, masonry, and concrete, with detailed illustrated solutions.

To download a copy of Sto’s Repair Guide, Click here.

Sto’s Vast Aesthetic Choices

Sto provides the aesthetic flexibility to replicate any facade, including concrete, stone, brick, and wood, with complete design freedom in endless texture, color, and material options. Sto Studio can also help with suggestions on textures, colors, and materials to help maximize the health of your building with a sustainable, high-performing, fully-engineered, and beautiful cladding system.

Sto Design Tools

Sto will help you with your architectural design process, ensuring that your building restoration will maximize the health of the building. We aim to produce a total facade concept, including color and material options, to preserve the original character and aesthetics of the building. In addition, we can create an array of color renderings to determine the most acceptable facade to ensure the cultural integrity of the historic building.

Sto’s website features two tools engineered to assist you with your creative visions: the StoInspire and Aesthetic+Product Selector tools.

• The StoInspire tool aids you in the visualization stage by allowing you to apply selected Sto aesthetic colors and surfaces to building models. The tool allows you can save your project renderings and even order material samples.
• The Aesthetic+Product Selector tool makes it simple to understand how Sto allows you to achieve a desired aesthetic. You can select based on the desired aesthetic, the material type or process, or the texture or pattern you want on your project.

Restoration of the Lido Beach Towers, Long Island, NY U.S.A.

Restoration of the 100-year-old Lido Beach Towers condominium community showcases the potential of StoTherm® ci as a retrofit method for deteriorating buildings. The aesthetically pleasing second-skin approach of EIFS significantly improved the building’s health, sustainability, and energy efficiency.

StoTherm® ci

Sto’s continuous insulation wall system (EIFS), the StoTherm® ci, is a high-performing, energy-efficient wall cladding that improves the health of the building. It combines several proven elements: StoGuard® air and water-resistive barrier system, StoTherm® ci insulated cladding and drainage, and Stolit® Lotusan®, a textured finish with self-cleaning properties.

Best Practices for Maximizing a Buildings Health by Restoration and Rehabilitation

The best practices for maximizing building health must allow new technologies and equipment to meet applicable codes, improve the building’s health, ensure occupants’ safety and comfort, and protect the environment through sustainable building practices and materials. Fortunately, retrofitting and restoring the exterior facade of a building with Sto’s A.R.T. of reStore™ innovative solutions can help to maximize your building’s health through improved sustainability and I.E.Q.

Don’t hesitate to contact Sto professionals for more on how our A.R.T. of reStore® solutions and Sto Studio can help you maximize the health of your building.

The post How to Maximize the Health of a Building Through Retrofit and Restoration appeared first on Sto Corp..

To achieve an NZE-sustainable home with a passive house design, the Conner family chose StoTherm® ci, Sto’s continuous insulation wall system. The wall system includes an integrated air and water-resistive barrier, StoTherm insulated cladding and drainage, and StoLit® Lotusan (a self-cleaning textured finish with self-cleaning properties). It provides an all-in-one, quick-to-install approach to the building envelope.

What is a Sustainable Home?

A sustainable home strives to minimize its environmental impact during and after construction by reducing carbon emissions and conserving natural resources, like energy, water, raw materials, and land, saving money and helping preserve natural resources for generations.

What is Passive Design?

A Passive House design requires that the wall system and other building envelope components work together with the home’s ori­en­ta­tion, window and room placement, shading, and ven­ti­la­tion to lower energy use.

What is a Net-Zero Energy Home?

Net-zero energy (NZE) homes make enough renewable energy to meet their annual energy consumption needs. An NZE home’s design typically includes continuous insulation (CI), high thermal mass products, energy-efficient glazings, roofing, and foundation, sustainable building products, and a renewable energy source.

What is Continuous Insulation?

The design of a sustainable and net-zero energy home often includes continuous insulation (CI). Continuous insulation prevents thermal bridging, significantly lessening energy consumption. In addition, the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE 90.1) and the International Energy Conservation Code (2021 IECC) mandate CI, as defined by the ASHRAE 90.1-2010.

The ASHRAE 90.1-2010 defines CI as insulation covering all structural members without thermal bridges other than service openings and fasteners. Builders must install CI on the interior or exterior of any opaque building envelope surface.

Net Zero Energy Home in Fairfax, Virginia

Sto Products: StoTherm® ci and StoLit® Lotusan® 1.0
Applicator: Robert A Aird, Inc.
General Contractor: O’Neill Development
Architect: Peabody Architects

David Peabody of Peabody Architects initially selected StoTherm® ci, an exterior insulation and finish system (EIFS), for its lower installation costs than traditional mineral wool batts and high-pressure laminate panels. StoTherm® ci also offered his client a superior water-resistant finish modeled after natural processes. Its exterior finish sheds water from the surface (like lotus plant leaves), extending the cleaning and re-coating cycles and reducing maintenance costs.

It’s important to note that by using a StoTherm ci system the time-consuming need to separately air seal the walls of the house was not needed.StoTherm ci includes a liquid-applied air and water-resistive barrier.

Architects selected Stolit® Lotusan®, a textured finish with self-cleaning properties. Applicator Robert A Aird, Inc. saved time by using a hand-troweled method with the Stolit® Lotusan® 1.0 to create the crisp, clean, industrial appearance for the house’s exterior that was the aesthetic vision shared by the architect, David Peabody, and the homeowners.

You can download this case study today for free, right here.

StoTherm® ci

High-performing, energy-efficient StoTherm® ci all-in-one building envelope systems include:

• StoGuard® liquid-applied air and water-resistive barrier, achieving an air infiltration number of 0.45 ACH@50 pascals
• StoTherm® insulated cladding, and drainage, making it Sto’s best continuous insulation wall system (EIFS).
• In addition, StoTherm® ci allows a builder or architect to adjust the insulation value without altering the stud width, reducing material and labor costs.

Stolit® Lotusan® Finish

Stolit® Lotusan® Finish with Lotus-Effect® technology offers builders a ready-mixed exterior textured finish coat in dazzling color choices. It mimics the self-cleaning capabilities of the lotus leaf, resisting dirt while keeping walls clean and attractive. The high-performing protective system also ensures it will stand up to whatever nature brings.

Builders and architects can apply Stolit® Lotusan® with Lotus-Effect® technology as a finish coat over StoTherm® ci wall claddings, prepared vertical concrete, masonry, and plaster substrates.

The Best Continuous Insulation System for Sustainability and Net-Zero Energy Construction

StoTherm® ci continuous insulation (CI) wall systems (EIFS) create sustainable, net zero, and aesthetically attractive homes. The StoTherm® ci all-in-one and quick-to-install system includes:

• A waterproof air and water-resistive barrier
• StoTherm® insulated cladding and drainage
• A choice of Sto Performative aesthetic finishes in a wide variety of aesthetics, colors and performance characteristics, including StoLit® Lotusan® finish.

Our fully-engineered, high-performing systems provide unmatched versatility with various design options, including unique colors, textures, shapes, and materials for any creative vision.

Contact one of our experienced representatives today at 1-800-221-2397 for more on achieving the best CI systems for sustainability and net-zero energy construction.

The post Understanding Continuous Insulation Systems for Sustainability and Net-Zero Energy Construction appeared first on Sto Corp..

In addition, for the past 30+ years, the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE 90.1) and the International Energy Conservation Code (2021 IECC) have required CI, as defined by the ASHRAE 90.1-2010.

The ASHRAE 90.1-2010 defines CI as insulation covering all structural members without thermal bridges other than service openings and fasteners. Builders must install CI on the interior or exterior of any opaque building envelope surface.

Fortunately, there are energy-efficient, code-compliant exterior insulation and finish systems (EIFS), like StoTherm® ci Wall Systems Drainable EIFS, that provide a superior solution for achieving CI.

EIFS can be either field applied or panelized in a complete factory-assembled wall system (cladding system, framing, and sheathing) that contains CI and an air barrier to comply with modern energy code goals. It is an ideal solution for both new construction and renovation, providing a cost and energy efficient solution to achieving performance goals while not compromising on the facade aesthetics.

The Evolution of Continuous Insulation in Exterior Wall Systems

For many years, builders placed batt insulation between the studs in the wall’s cavities to insulate exterior wall systems. Unfortunately, this insulating method failed to consider the thermal transmission of cold and heat through the studs, which significantly diminishes the R-value of the insulation.

To alleviate this, builders began applying cladding with continuous insulation (CI) to the exterior wall system (the beginnings of EIFS), which more effectively maintained a consistent interior temperature and lessened energy use.

Barrier EIFS

The first type of EIFS, face-sealed (barrier), consisted of an insulation board fastened to the structural wall surface, typically gypsum. However, when water got into the system, face-sealed EIFS did not allow it to drain. Also, many parts of the barrier EIFS absorbed and held moisture. A lack of drainage and the use of moisture-sensitive components made buildings constructed with barrier EIFS prone to mold problems and insect damage, and led to the development of Drainable EIFS systems backed up with air and water-resistive barrier components that protect the building from moisture intrusion.

Drainable EIFS

About 30 years ago, the EIFS Industry Members Association (EIMA) and International Conference of Building Officials (ICBO) addressed the problems of barrier EIFS by implementing stricter requirements to prevent moisture issues in EIFS, leading to the development of drainable EIFS.

Drainable EIFS includes a secondary moisture barrier and vertical drainage channels with weep holes in the bottom to drain collected water, significantly reducing moisture issues.

Scientific Study Validates Using Drainage EIFS

From 2005 and 2007, the Oak Ridge National Laboratory (ORNL) studied the energy efficiency, moisture intrusion, and temperature control between EIFS, stucco, brick, cementitious fiberboard, and stucco siding. It concluded that drainage EIFS with CI provides superior moisture and temperature control performance when compared to brick, cementitious fiberboard siding, and stucco.

Drainage EIFS expanded in 2009 when the International Building Code (IBC) recognized EIFS as an acceptable building product and directed applying a water-resistive barrier to EIFSs. Today, improvements in moisture resistance and retention of EIFS make it a superior choice for a cladding system.

Achieving Continuous Insulation with EIFS

The exterior CI of EIFS wraps a building with insulation (R-value between 4 and 5.6 per inch), unlike conventional cavity batt insulation installed between the studs. Providing CI with EIFS lessens thermal bridging and improves air and moisture infiltration management to create higher-performing buildings with reduced energy consumption. In addition, durable EIFS complies with NFPA 285 (referenced in 2021 IBC Section 1403.5) to limit fire spread both horizontally, and vertically. Depending on the insulation type used, R-Values of up to R43 can be achieved with code compliant EIFS systems.

Components of EIFS

EIFS contains multiple layers over exterior sheathing, providing superior insulation and moisture protection. The standard components (layers) of EIFS include:

1. A water-resistive barrier over the substrate stops moisture from infiltrating the wall assembly.
2. A layer of mineral wool, expanded polystyrene (EPS), or extruded polystyrene (XPS) gives added insulation.
3. A layer of fiberglass mesh adds reinforcement and crack resistance. It protects against crumbling and cracks due to freeze/thaw cycles, shifting foundations, and thermal expansion.
4. A water-resistant base coat implanted into the glass-fiber reinforcing mesh and applied on top of the insulation acts as a weather barrier.
5. A finishing coat furnishes the texture, color, and protective nature of the exterior surfaces of the buildings or homes.

Structural and Aesthetic Benefits of EIFS

EIFS’s structural and aesthetic appeal makes it an ideal product for retrofitting and new construction. In addition, builders can apply these multilayered systems to concrete, wood, or steel substrates in any climate. Specific design and structural advantages include:

• Aesthetically versatile EIFS can mimic marble, brick, granite, and stone.
• Energy-efficient drainage EIFS with CI meets the requirements of ASHRAE 90.1.
• Fire-resistant EIFS passes the required building codes for ignitability  (NFPA 268), fire resistance (ASTM E119), and intermediate multi-story fire test (NFPA 285).
• EIFS resists flames spreading within the combustible component/core of panels from one story to the next. EIFS also limits the lateral spreading of flames from the origin of the compartment fire to adjacent spaces.
• Low-maintenance EIFS resists structurally damaging and unhealthy mold.

Achieving CI with StoTherm® ci Wall Systems Drainable EIFS

Unlike some EIFS systems, StoTherm® ci Wall Systems Drainable EIFS offers a more modern approach to EIFS technology with drainage that helps to prevent moisture intrusion into the wall cavity. The straightforward application of long-lasting StoTherm® ci Wall Systems Drainable EIFS provides excellent energy efficiency, condensation, impact, and fire resistance, and design flexibility.

Durability

Durable StoTherm CI EIFS will last the life of the building with proper maintenance. In addition, you can repair EIFS with the help of an EIFS professional. For information on repairing EIFS, you can refer to the StoTherm® EIFS Reference Guide or contact one of our experienced representatives at 1-800-221-2397.

Energy-Efficiency

All EIFS provide CI, which reduces energy use, saves money, and complies with today’s energy codes.

Condensation Resistance

EIFS insulation thickness should prevent the interior air from reaching the dew point (the temperature when water vapor turns to water) to minimize condensation within the wall assembly.

Impact Resistance

Designing EIFSs with a high-impact mesh tremendously improves impact resistance.

Fire Resistance

Fire-resistant EIFS pass the required building code tests for ignitability (NFPA 268), fire resistance (ASTM E119), and intermediate multi-story fire test (NFPA 285). Click here or contact one of our experienced representatives at 1-800-221-2397 for more on NFPA 285 testing of Sto wall systems.

Quality Sealants

Stopping water intrusion into the wall system must include properly installing quality sealants.

Design Flexibility

EIFS allows you to customize the cladding system’s aesthetic to fit your project’s needs.
StoTherm® ci Systems advanced integrated wall assemblies combine protective and aesthetic components into a superior wall cladding. The system’s high-performance features include:

StoGuard® fluid-applied air and water-resistive barriers are a fully-adhered seamless monolithic exterior wall air and moisture barrier that protects against moisture infiltration and unwanted air movement – perfect for all types of construction.

StoTherm® ci cladding systems combine CI, air and water-resistive barrier, drainage, and many textured finishes and coatings in order to produce a sustainable, high-performance wall cladding. The durable and attractive system creates maximum curb appeal and saves money through reduced energy bills.

Sto’s architectural coatings provide all the features of high-quality EIFS paints; superior protection against fading, mold, mildew, and crack bridging, self-cleaning properties, vapor permeability, and low VOC. In addition, the coatings come in an assortment of sheens and textures, or we can tint them in a vast array of colors to fit all your exterior design requirements.

Sto’s high performance finishes provide architects with the complete design freedom of an expansive selection of finishes in many color and texture options. We manufacture durable Sto finishes to the highest quality standards, to resist dirt and water and protect your home or building while providing attractive curb appeal.

Drainable EIFS – StoTherm® ci Wall Systems

Sto offers eight drainable EIFS StoTherm® ci Systems, including four StoTherm® ci Hurricane Impact Systems – all systems achieve continuous insulation.

StoTherm® ci XPS

Durable and high-performing StoTherm® ci XPS incorporates high R-value extruded polystyrene insulation into the wall assembly and StoGuard® fluid-applied moisture and air barrier, to create water and air-resistant walls for thermal efficiency.

StoTherm® ci

Lightweight StoTherm® ci integrates StoTherm® and the StoGuard® waterproof air barrier, to enhance energy efficiency and protect against moisture infiltration.

StoTherm® ci Mineral

The StoTherm® ci Mineral system includes a non-combustible, mineral wool exterior insulation and continuous air and moisture barrier with Sto’s high-performance finish to produce an advanced cladding system.

StoTherm® ci MVES

StoTherm ci® MVES (masonry veneer engineered system) is a StoTherm® ci system with masonry veneer, natural stone, ceramic tile, or manufactured stone used as the facade finish. It also meets relevant building code requirements.

StoTherm® ci HI-PLY

The high-performing StoTherm® ci HI-PLY exterior wall cladding system combines CI with seamless moisture and air barrier and advanced drainage capabilities over CDX exterior plywood sheathing. StoTherm® ci HI-Ply’s engineering archives the testing requirements for large and small missile impacts.

StoTherm® ci HI-CM 180

High-performing, energy-efficient, and hurricane-resistant StoTherm® ci HI-CM 180 is a CI wall cladding that integrates StoTherm® insulated cladding, StoGuard® waterproof air barrier, and drainage capabilities over CMU substrates. In addition, StoTherm® ci HI-CM 180’s engineering meets the testing requirements for large and small missile impacts.

StoTherm® ci 1177-SM

StoTherm® ci 1177-SM exterior wall cladding systems combine seamless moisture and air barrier with advanced drainage capabilities over glass mat gypsum sheathing. The engineering of StoTherm® ci 1177-SM meets the testing requirements for small missile impacts.

StoTherm® ci 1177-LM

StoTherm® ci 1177-LM exterior wall cladding systems provide a seamless moisture and air barrier with CI, advanced drainage capabilities, and Sto Armor Mat XX Mesh for additional impact and reinforcement resistance over glass mat gypsum sheathing. The engineering of StoTherm® ci 1177-LM fulfills the testing requirements for large and small missile impact performance on 16-gauge steel studs with gypsum sheathing.

The Benefits of StoTherm ci EIFS Systems

StoTherm® ci cladding systems combine CI, air/moisture barrier, drainage, and many textured finishes to create a sustainable, high-performance wall cladding. The durable system maintains its maximum curb appeal and saves money through lower energy bills.

Sto offers a variety of Continuing Education classes to provide designers with additional information about designing with Sto’s envelope system. Click here to see our upcoming schedule of online training sessions.

Click here or contact one of our experienced representatives at 1-800-221-2397 to learn more about achieving continuous insulation with EIFS.

The post Achieving Continuous Insulation with EIFS appeared first on Sto Corp..

Lightweight, versatile, and simple to install, extruded polystyrene sheets typically come in 8-foot and 5-foot lengths, ranging from 16 inches to 4 feet wide and ¾-inch to 4-inches wide. The sheets come unfaced, and are covered with a foil facing, or laminated with plastic. The facing adds water resistance, and the lamination offers strength, but neither affects the sheets’ R-value. XPS sheets come in an array of colors (typically blue, green, and pink), based on the manufacturer, not insulating quality.

What is an XPS Insulation Board Used For?

Flexible XPS boards come in various compressive strengths, making them ideal for numerous applications in all areas of the building envelope:

• Above-grade insulation applications (walls, attics, ceilings, floors, and roofs)
• Below-grade walls (basements and foundation)
• Cool/refrigerated rooms
• In addition, you can use high compressive strength XPS panels to insulate rooftop parking garages and decks.

How is XPS Insulation Made?

Manufacturing XPS insulation involves combining polystyrene crystals with special additives and a gas blowing agent. Manufacturers feed the mixture into an extruding machine that blends and melts it into a thick liquid. The liquid then gets processed through a die, which expands it into foam, shapes, cools, and trims it into standard-sized rectangular or square boards, with surfaces according to the intended use.

XPS Surfaces

Specially designed machines produce XPS boards in smooth, rough, and grooved surfaces.

XPS Smooth Edge Panels

Demanding applications, like below-grade installation, utilize smooth XPS panels. Smooth, closed-cell XPS panels protect against absorption and diffusion due to long-term water exposure.

XPS Rough Surface Panels

Rough surfaces increase the adhesion of the facade plaster.

XPS Panels with Grooves

Grooves in the XPS panel enhance wall drainage and thermal insulation for foundations.

The Benefits of XPS Insulation

XPS insulation offers many benefits contributing to an eco-friendly, healthy, durable, and safe building envelope.

Energy-Efficient

XPS closed cell insulation, with an R-value of 4.6 and 5.0, gives it a high thermal resistance value, making it extremely energy efficient, by saving energy in buildings and reducing CO2 emissions.

Recyclable

100-percent recyclable XPS allows manufacturers to melt and reform the thermoplastic polystyrene resin into new XPS foam insulation.

XPS High Compressive Resistance

XPS insulation’s high compressive strength allows it to withstand a high pressure of >300 kPa, so it can withstand more than 6144 lbs ft2 (30,000 kilos m2) with a maximum deformation of 10 percent, making it ideal for challenging applications:

• Below-grade walls – foundations, basements, crawl spaces
• Perimeter insulation – protecting foundation walls from the side of the ground
• Inverted roofs – applying the waterproofing layer beneath instead of above the insulation
• Cavity walls – a wall with a hollow center
• Pitched roofs – roofs that slope downwards, often in two parts at an angle from a central ridge
• Walkable plates – the strength of XPS insulation makes it ideal for horizontal applications like floors, flat roofs, and heavily trafficked areas

Moisture-Resistant XPS Insulation

XPS insulation provides water and freeze-thaw resistance, to protect the insulation’s thermal performance from damaging rot and unhealthy mold. In addition, the high permeability of XPS insulation makes it ideal for bathrooms and other high-moisture rooms.

Simple to Install XPS Insulation

Lightweight XPS insulation allows for easy application without irritating the worker’s skin.

Problems with XPS Insulation

• The  combustibility of polystyrene foam makes XPS’s proper installation vital to avoiding a fire hazard and the emission of toxic fumes.
• The blowing agents in the manufacturing process may deplete over time, lessening the insulation value.
• XPS’s low-permeability can lead to condensation and mold problems.
• Over time, the gas bubbles within the XPS leak out, leaving air that lessens the panels’ insulation value.
• Most building professionals do not recommend XPS insulation on flat roofs because it will deform above 80 degrees.

How to Install XPS Boards

Applying XPS insulation boards involves gluing the lightweight sheets to the substrate, which is much simpler than batts, blown-in fibers, or spray foam insulation. It is important to only use the manufacturer’s recommended foam-safe adhesive. The wrong glue can melt the foam. In addition, butt the sheets snugly together and seal joints with a manufacturer-recommended adhesive seam tape.

Tips for Filling Wall and Ceiling Cavities

To insulate the stud, joist, and rafter cavities, cut the sheets to fit snug in the cavities, inserting them flush with the framing. To prevent airflow that can diminish the R-value, fill gaps along the edges with expandable insulation foam, safe for use with XPS. You can increase the R-value in two-by-six and larger dimension framing by inserting an additional layer of rigid foam insulation.

Tips for Cutting the XPS Boards

You can simply cut thin XPS sheets (less than 2-inches) by holding the straight edge of a utility knife along the cut line, scoring it about 3/4-inch deep. After scoring, lay the sheet on a table scored side up with the cut about 1-inch off the table. Firmly hold the sheet down and snap along the line. Trim the rough edges with the utility knife

For thicker sheets (greater than 2-inch), you will need a handheld drywall saw, or a table saw.

Tips for Installing XPS on Exterior Sheathing

Installing 2-inch EPS boards on exterior sheathing requires additional furring strips or other structural supports. In addition, 2-inch XPS does not supply the strength needed to support the weight of the siding. Therefore, Sto strongly recommends that you check with your local building authority to determine the required type of additional support before installing 2-inch XPS as exterior sheathing.

Sto XPS Continuous Insulation Wall Systems

Sto offers superior, simple-to-apply cladding solutions for applying XPS to an exterior wall system compared to XPS insulation boards: StoTherm ci XPS and StoPanel XPS ci. In addition, Sto XPS CI wall systems meet the requirements of fire, energy, and green building codes.

Sto XPS Wall Systems meets the requirements of NFPA 285 and NFPA 268 for use on non-combustible construction (Types I-IV).

Sto XPS Wall Systems 2021 International Building Codes (IBC)

• Ch. 26: Types I-IV (non-combustible) Construction, Ignition Resistance, Surface Burning Characteristics
• Ch. 17: Special Inspections, Types I-IV (non-combustible) Construction
• Ch. 16: Structural – Transverse Wind Load Resistance
• Ch. 14: Exterior Insulation and Finish Systems, Weather Resistance
• Ch. 7: Fire Resistance Rated Construction

Sto XPS Wall Systems 2021 International Energy Conservation Code (IECC)

• Ch. 4: Continuous Insulation (ci) over Metal Frame Walls – All Climate Zones (with sufficient ci thickness)
• Ch. 4: Continuous Air Barrier

Sto XPS Wall Systems 2021 International Green Construction Code (IGCC)

Ch. 6: Energy Conservation, Efficiency and Atmospheric Quality (Section 606: Building Thermal Envelope insulation and Air Sealing) Alternative Compliance Path: ASHRAE 189.1-2009

Sto XPS Wall Systems 2021 ASHRAE 90.1

• Section 5: Building Envelope Continuous Insulation (ci) over Metal Frame Walls – All Climate Zones (with sufficient ci thickness)
• Section 5: Continuous Air Barrier

Sto XPS Wall Systems 2021 ASHRAE 189.1 Green Building Standards Compliance

• Normative Appendix A: Building Envelope
• Continuous Insulation (ci) over Metal Frame Walls – All Climate Zones (with sufficient ci thickness) Normative Appendix B: Continuous Air Barrier

StoTherm® ci XPS 

Durable StoTherm® ci XPS, one of StoTherm® ci wall systems, is a drainable exterior insulation finishing system that incorporates high R-value XPS insulation into the wall system, and StoGuard® fluid-applied air and moisture barrier, with Owens Corning Foamular CI-C or Dow STYROFOAM™ Panel Core 20 insulation. StoTherm® ci XPS produces water and airtight air walls to ensure superior durability and thermal efficiency.

The unique, durable system sustains maximum curb appeal and lowers energy bills to save money. In addition, StoTherm® ci XPS can be finished with a variety of Sto textured finishes or specialty aesthetic finishes to accommodate your building’s design needs.

StoPanel XPS ci Wall System

Lightweight StoPanel XPS ci prefabricated panels incorporate extruded insulation within the panel assembly, and create exterior wall cladding with excellent air and weather tightness, superior thermal performance, and long-lasting durability. In addition, architects and designers can choose from Sto’s numerous decorative and protective color and finish options.

StoPowerwall® ci with Crack Defense option

StoPowerwall® ci energy-efficient stucco wall systems include StoGuard® air and water-resistive barrier, Owens Corning or Dow Type IV XPS insulation board, Sto DrainScreen, and Sto textured finishes.
StoPowerwall ci integrates continuous XPS insulation, air/moisture barrier, drainage, and Sto’s extensive collection of aesthetic surfaces in a hard coat stucco system.

Sto Colors

Designers can use Sto’s unique Color System as a planning tool for choosing the colors for their architectural designs. The Sto Color System provides several benefits:

• Clear, logical system makes it quick and easy to understand
• Ensures reliable application of Sto’s endless and harmonic colors for use on exterior and interior
• Efficient, perception-oriented presentation media for all phases of color design

Sto Traditional Finishes

Sto’s extensive selection of finishes features pure white marble aggregate, acrylic polymers in various textures, and a wide range of color options to boost your design and harmonize with the surrounding environment. In addition, durable, high-performing Sto finishes resist dirt and water, protect the building’s facade, and enhance its curb appeal. Sto high-quality finishes include:

StoCast Finishes

Specialty Aesthetic Finishes

StoSignature

Sto Traditional Finishes

iQ Technology

Sto Has the Best XPS Wall Insulation Solutions

Sto offers superior, sustainable, simple-to-apply, multiple code-compliant cladding solutions for applying XPS to an exterior wall system compared to XPS insulation boards. Drainable StoTherm® ci XPS and StoPanel XPS ci create high-performing, sustainable, and attractive cladding systems, improve indoor comfort and air quality, save both money and energy, and ensure long-term durability:

• StoTherm® ci XPS integrates continuous XPS insulation, air/moisture barrier, drainage, and Sto’s extensive collection of aesthetic surfaces.
• StoPanel XPS ci incorporates XPS insulation within the panel assembly, to create a prefabricated finished exterior wall solution with a wide range of high-end aesthetic options.
• StoPowerwall ci integrates continuous XPS insulation, air/moisture barrier, drainage, and Sto’s extensive collection of aesthetic surfaces in a hardcoat stucco system.

Don’t hesitate to contact the Sto professionals for everything you need to know about XPS insulation.

The post Everything You Need to Know About XPS Insulation appeared first on Sto Corp..

Base floor systems
Foundation wall systems
Above-grade wall systems
Doors and windows
Roof systems

Each component provides a multi-material, multi-layer assembly that extends from the interior layer (wallpaper or paint) to the outermost exterior layer (roof shingles, facade). Together, all the adjoining enclosure sub-systems make up the enclosure system in architecture.

Building Enclosure Design Considerations

Optimizing the building enclosure’s performance requires quality building enclosure solutions, like Sto’s integrated building enclosure systems, that consider interior and exterior environments, loadings, physical functions, and performance attributes of the enclosure. These also apply to the other physical components of the building.

Interior and Exterior Loadings

Loading refers to any event or characteristic that affects the enclosure, typically related to:

Gravity
Ground
Heat (thermal)
Moisture
Air

Interior-Environment Loadings

Interior-environmental loadings mainly result from the occupants, natural occurrences, or conditioning. Managing interior-environment loadings involves space conditioning to maintain temperature and humidity levels and fire prevention. Therefore, the success of the building enclosure depends on addressing the interior environment.

Exterior-Environmental Loadings

Exterior environment loadings occur due to climate (weather, hurricanes, flooding), human (smog, global warming), or nature (fire, seismic, pests). Therefore a high-performing building enclosure must provide resistance against water, wind, fire, radon, flood, earthquake, termites, and hydrostatic pressure. The durability and long-term integrity of the building or home depend on a building enclosure with all these protections.

Building Enclosure Functions

Building enclosures provide three physical functions:

Support Functions resist, transfer, and accommodate all the structural forms of loading imposed by the interior and exterior environments, the enclosure, and the building, often acting as an integral part of the building superstructure.
Control Functions regulate and moderate all the loadings due to the separation of the interior and exterior environments – the flow of mass (moisture, air, etc.) and energy (sound, heat, UV, etc.).
Finish Functions of the enclosure surface ⎯ the envelope interfaces with the exterior and interior environments. Each interface must meet the relevant visual, aesthetic, durability, and other performance requirements.

Attributes of a High-Performing Building Enclosure

A high-quality building enclosure must manage every loading to ensure long-term, successful performance and include both physical and qualitative attributes.

Simple and quick construction
Durability and long-term integrity
Superior aesthetics
Sustainability
Safety to occupants
Low-maintenance and repair needs
Financial savings during and after construction

Sto Building Enclosure Wall Systems

Sto’s integrated building enclosure systems effectively deliver a single solution for all the requirements of a high-performing building enclosure wall system, streamlining the process for contractors and installers and saving time and money. In addition, our building enclosure wall systems offer endless choices in styles, textures, and colors for creating aesthetically pleasing facades with eye-catching curb appeal. You can combine several facades in a single system without product compatibility design and transition challenges.

Sto building enclosure systems include control layers that protect the building from exterior environmental elements and also create a healthy, comfortable interior for the occupants.

• An air barrier lessens energy use and condensation by limiting unwanted airflow through the wall system.
• A permeable or impermeable (per designer specification) vapor retarder minimizes condensation by stopping the flow of water vapor as it moves from high to low-pressure areas.
• A water-resistant barrier flashes to the cladding’s exterior to stop water from infiltrating the wall cavity.
• A thermal barrier minimizes energy loss and stops thermal bridging.
• A water-shedding and durable facade protects against weather, UV exposure, pollutants, and more.

Sto products are also dependability fortified by third-party testing and code compliance, including fire testing (NFPA-285). We cover all of our wall systems with a single-source warranty.

1. StoPanel Systems Prefabricated Exterior Wall Panels

Sto’s prefabrication solution, Sto Panel® Technology, provides finished exterior wall panels. The StoPanel® system panels consist of an air barrier, water-resistant barrier, cold-formed metal framing, and applicable components, including continuous insulation (ci), sub-framing, glass mat sheathing, and facade aesthetic.

Prefabrication provides many significant advantages:

• Helps to stay on budget
• ݈Lessens delivery time and labor needs
• Improves quality control and assurance
• Boosts job site safety
• Reduces construction waste

StoPanel® Classic NExT ci

StoPanel® Classic NExT ci prefabricated wall panel is comprised of gypsum sheathing, steel framing, and StoTherm® ci facade

StoPanel® MVES

StoPanel® MVES prefabricated wall panel includes gypsum sheathing, steel framing, and Sto’s Masonry Veneer Engineered System (MVES) facade with Adhered Masonry Veneer (AMV) – natural stone, ceramic tile, cultured stone, or thin brick.

StoPanel® Mineral ci

StoPanel® Mineral ci prefabricated wall panels include gypsum sheathing, steel framing, and StoTherm® Mineral ci facade.

StoPanel® Dri-Design®

StoPanel® Dri-Design® prefabricated wall panels include gypsum sheathing, steel framing, and Dri-Design® metal facade.

StoPanel® Swisspearl®

StoPanel® Swisspearl® prefabricated wall panels include gypsum sheathing, steel framing, and Swisspearl fiber cement facade.

StoPanel® Impact ci

StoPanel® Impact ci prefabricated wall panels comprise steel framing, gypsum sheathing, and StoTherm ci system, designed specifically for small and large missile impact performance.

StoPanel® 3DP Powered by Branch Technology

Sto Panel Technology® and Branch Technology work together to create a superior 3-dimensional design for exterior walls. Prefabricated, panelized walls combine the building enclosure layers into a customizable 3D printed lightweight, strong, and simple-to-install composite shape. In addition, the Branch’s unique Cellular Fabrication (C-Fab®) 3D printing process permits you to produce a unique and highly functional architectural facade panel in endless forms or shapes.

StoPanel® Brick

StoPanel® Brick prefabricated wall panels include gypsum sheathing, steel framing, thin masonry veneers, or thin brick.

StoPanel® XPS

StoPanel® XPS prefabricated wall panels include gypsum sheathing, steel framing, and StoTherm® ci facade that includes Extruded Polystyrene Foam Insulation.

StoPanel® Metal

StoPanel® Metal prefabricated wall panels include gypsum sheathing, steel framing, and metal cladding.

StoPanel® Backup

StoPanel® Backup prefabricated wall panels include an air barrier, steel framing, gypsum sheathing, and water-resistant barrier. Builders apply the facade on-site.

StoPanel® Precast

StoPanel® Precast prefabricated wall panel includes gypsum sheathing, steel framing, gypsum sheathing, and various integral decorative and protective finish options to replicate precast concrete.

2. StoVentec® Rainscreen® Systems

Rainscreen claddings protect against moisture damage (especially essential with water-absorbing claddings) by providing a ventilation gap between the siding and air and water-resistant barrier. The small gap (as tiny as ½-inch) permits adequate drainage and drying.

StoVentec® Systems provide a complete, code-approved, fully-tested, high-performance ventilated Rainscreen® system comprised of air and water-resistant barrier, non-combustible mineral wool insulation, an easy-to-install, adjustable sub-framing assembly, and our impressive StoVentec® Rainscreen® cladding.

In the U.S., StoVentec® back-ventilated rainscreen cladding systems offer numerous finishes, providing architects with many aesthetic choices to create distinctive building facades with exceptional engineered performance features.

StoVentec® Masonry Veneer Facades

StoVentec® for masonry veneer facades offer a back-ventilated rainscreen wall system with aesthetic options of tile, thin brick, and masonry.

StoVentec® Glass

StoVentec® Glass provides an open joint, drained, and back-ventilated rainscreen wall system with an opaque glass facade, offering aesthetic choices of back-colored glass, frosted glass, and custom printed glass.

StoVentec® Render

StoVentec® Render drained and back-ventilated rainscreen wall system offers aesthetic opinions of Stolit Lotusan self-cleaning textured finish, Sto textured finish, and StoCast, Sto’s prefabricated resin cast shapes.

3. StoPowerwall® Stucco Systems

StoPowerwall® Stucco Systems combine aesthetic and protective elements into a superior wall system, including StoGuard® fluid-applied air and water-resistant barrier, StoPowerwall® Stucco, and Sto textured coatings and finishes that keep out moisture while furnishing many choices in design. In addition, Sto systems include the Sto DrainScreen drainage mat for additional moisture protection and optional Sto Crack Defense, a fortification layer for crack prevention.

StoPowerwall® DrainScreen MVES

The StoPowerwall® DrainScreen MVES stucco wall assembly with masonry, thin brick, tile, or cultured stone veneer, includes the moisture protection of StoGuard® air and water-resistant barrier and Sto DrainScreen to minimize the risk of water accumulation.

StoPowerwall® DrainScreen

The StoPowerwall® DrainScreen Stucco wall system combines the strength and durability of traditional stucco with StoGuard moisture protection, Sto high-performance finishes, and Sto DrainScreen; however, it does not include insulation.

StoPowerwall® ExtraSeal®

The StoPowerwall® ExtraSeal® stucco wall system applies directly to concrete masonry units, with Sto ExtraSeal moisture and air protection.

StoPowerwall® HI Wall Panel System

The StoPowerwall® HI stucco wall system includes continuous air and moisture barrier and drainage. It combines the durability and strength of traditional stucco with StoGuard moisture protection and Sto Armor Mat XX Mesh for additional impact resistance and reinforcement. It also meets the testing requirements for large and small missile impacts.

4. StoQuik® Silver Systems Cement Board Stucco

StoQuik® Silver Systems combines the moisture protection of StoGuard air and water-resistant barrier with the strength of a cement board substrate, a drainage mat for draining and drying, and the versatile performance and design choices of Sto’s textured finishes – reducing the moisture exposure, complex installation, and labor steps of traditional stucco.

StoQuik® Silver DrainScreen™MVES

The weather-resistant, high-impact StoQuik® Silver DrainScreen™ MVES cement board stucco system offers excellent moisture protection with natural stone, ceramic tile, manufactured stone, or thin brick stone veneer for exterior vertical above-grade walls in low-rise commercial, institutional, and residential construction.

StoQuik® Silver DrainScreen™

Durable, StoQuik® Silver DrainScreen™ cement board stucco system provides improved water drainage and superior energy efficiency.

5. Drainable EIFS (Exterior Insulation Finishing System) – StoTherm® ci Wall Systems

StoTherm® ci cladding systems integrate continuous insulation, air and water-resistant barriers, drainage, and many aesthetic finish options to create a high-performance, sustainable building enclosure system. The durable and eye-catching system maintains maximum curb appeal and saves money through reduced energy bills.

StoTherm® ci MVES

StoTherm® ci MVES (masonry veneer engineered system) integrate continuous insulation, air and water-resistant barrier, drainage and Sto’s high strength masonry veneer adhesive.. It can be used with thin brick, natural stone, ceramic tile, or manufactured stone that is in conformance with applicable building code requirements.

StoTherm® ci Mineral

The StoTherm® ci Mineral system incorporates non-combustible, mineral wool insulation and continuous air and water-resistant barrier with Sto’s high-quality finishes to produce an advanced high-performance building enclosure wall system.

StoTherm® ci XPS

High-performance, durable StoTherm® ci XPSincorporates high R-value extruded polystyrene insulation into the wall assembly and StoGuard® fluid-applied air and water-resistant barrier, to create a watertight air wall ensuring superior durability and thermal efficiency.

StoTherm® ci

StoTherm® ci combines StoTherm® and the StoGuard® waterproof air barrier systems for improved energy efficiency and protection against moisture infiltration.

StoTherm® ci HI-LM CMU 180

Hurricane-resistant, high-performing, and energy-efficient StoTherm® ci HI-LM CMU 180 provides a continuous insulation wall system that integrates StoGuard® waterproof air barrier and StoTherm® insulated cladding and drainage abilities over concrete masonry unit substrates. In addition, the StoTherm® ci HI-LM CMU 180’s engineering meets the strict Miami-Dade County, Florida NOA criteria for small and large missile impact resistance, wind load resistance, and air and water infiltration.

StoTherm® ci 1177-LM

High-performance StoTherm® ci 1177-LM exterior wall cladding system integrates a seamless air and water-resistant barrier with continuous insulation, advanced drainage abilities, and Sto® Armor Mat XX Mesh for added reinforcement and impact resistance compared to glass mat gypsum sheathing. The engineering of StoTherm® ci 1177-LM meets the strict Miami-Dade County, Florida NOA testing standards for small and large and missile impact resistance and performance on 16-gauge steel studs with gypsum sheathing.

StoTherm® ci 1177-SM

High-performance StoTherm® ci 1177-SM exterior wall cladding assembly integrates a seamless air and water-resistant barrier with continuous insulation and advanced drainage abilities compared to glass mat gypsum sheathing. In addition, the engineering of StoTherm® ci 1177-SM meets the strict Miami-Dade County, Florida NOA standards for small missile impact resistance, wind load resistance, and air and water infiltration.

StoTherm® ci HI-PLY

High-performance StoTherm® ci HI-PLY exterior wall cladding assembly combines a seamless air and water-resistant barrier with continuous insulation and advanced drainage abilities over CDX exterior plywood sheathing. In addition, the engineering of StoTherm® ci HI-PLY meets the strict Miami-Dade County, Florida NOA testing standards for large and small missile impact resistance, wind load resistance, and air and water infiltration.

6. Sto Masonry Veneer Engineered Systems

Sto Masonry Veneer Engineered Systems (MVES) offer various choices for integrating popular masonry veneer surfaces into any architectural layout. These thoroughly engineered, high-performance, and lightweight systems give you the endless design flexibility to showcase the aesthetic of brick, tile, brick, or a combination with Sto’s expansive range of architectural surfaces.

StoTherm® ci MVES

Lightweight, energy-efficient system StoTherm® ci MVES offers an engineered insulating wall system with Adhered Masonry Veneer (AMV) – natural stone, thin brick, stone, ceramic tile, or cultured stone. It combines superior weather and air tightness with outstanding thermal performance and durability.

StoPowerwall® DrainScreen MVES

StoPowerwall DrainScreen MVES comprises a Portland cement stucco wall system with Adhered Masonry Veneer (AMV) – natural stone, thin brick, ceramic tile, or cultured stone. It combines the durability and strength of portland cement stucco with Sto’s enhanced strength masonry veneer adhesive and the moisture protection of Sto’s innovated cavity wall design with StoGuard® air and water-resistant barriers.

StoQuik® Silver DrainScreen™ MVES

High-impact, weather-resistant StoQuik® Silver DrainScreen™ cement board stucco system provides superior moisture protection for exterior vertical above-grade walls in low-rise commercial, institutional, and residential construction. It also achieves the beautiful aesthetic of masonry veneers like ceramic tiles, thin bricks, natural stone, manufactured stone, and culture stones. It combines the high strength of cement board substrate with StoGuard® air and water-resistant barrier and features Sto DrainScreen technology to promote excellent drainage and drying of the wall system. It also includes StoColl masonry veneer adhesive, a high-performance polymer modified Portland cement thin-set adhesive to create an advanced engineered building enclosure system.

StoVentec® for masonry veneer facades

Drained and back ventilated StoVentec® for masonry veneer facades offers a fully engineered Rainscreen® wall system with a thin brick facade. The complete system includes continuous insulation, sub-construction, and continuous air and water-resistant barrier. Combining the internationally proven performance of the StoVentec® rainscreen system with the durability of thin brick masonry veneer offers building enclosure designers both the flexibility of form and function when combined with Sto’s other engineered wall systems.

StoPanel MVES

StoPanel® MVES prefabricated wall panels include gypsum sheathing, steel framing, and Adhered Masonry Veneer (AMV) – thin brick, ceramic tile, and natural or cultured stone. The complete wall system combines outstanding air and weather tightness with superior thermal performance and durability with Sto high-strength masonry veneer adhesive.

7. Specialty Building Enclosure Systems

Our building enclosure systems include a series of special wall assemblies engineered to meet particular building enclosure design requirements and accommodate different building substrates like Aerated Autoclave Concrete or Insulated Concrete Forms.

StoQuik® Gold System for Soffits and Ceilings

Sto provides a direct-applied Exterior Finish System (DEFS) for weather-protecting walls and un-insulated exterior soffit and ceiling applications.

Sto Interior Finish System for Pool Rooms

Sto offers a specialized decorative and protective finished system for interior walls and ceilings of residential or commercial indoor swimming pool rooms.

Sto ICF Coating System

A Sto decorative and protective finish system for Insulated Concrete Form (ICF) construction

Sto AAC Finish System

Sto offers a decorative and protective finish system for above-grade exterior AAC wall construction.

Sto ICF Insulated Finish System

Sto provides a decorative and protective finish system for Insulated Concrete Form (ICF) construction.

Why Choose Sto’s High-Performance Building Enclosure Systems?

Sto’s building enclosure systems include all the control layers required for a high-performance system. Easy to install, time-saving Sto systems combine all the wall components in a single unit:

• Continuous insulation
• Sub-framing system
• Air barriers
• Water-resistant barriers
• Endless aesthetic facade surface options accommodating all your designs

For more on high-performance building enclosure systems, don’t hesitate to contact our knowledgeable Sto professionals today.

The post Building Enclosure Systems in Architecture appeared first on Sto Corp..

What is a Brick Facade Wall?

Brick veneer exterior wall systems contain one non-loadbearing wythe on the exterior for aesthetic purposes. Brick facades also provide an exterior barrier for protection against elements. Specific features of a brick facade wall include:

• A structural shelf mechanically attached to the interior wythe supports the brick veneer panels.
• The structural support of the brick veneer section comes from an interior wythe made of steel, concrete, or wood that makes up the backup wall.
• The open cavity between the brick and backup walls provides space to add insulation and mortar collection devices.
• The brick veneer details must include proper flashings and weep devices to enable water to exit the cavity to the building’s exterior.

Brick Veneer vs. Solid Brick Wall Systems

The differences between solid brick and brick veneer walls results from how the builder assembles the brick in the wall system and the brick veneer details – both have an impact on the walls’ structural and thermal performance.

Up until the mid-1900s, many builders used solid brick construction. Solid brick (solid brick, double brick, or brick and block) construction uses several layers (wythes) of brick, held together by holder rows or metal ties. Both the interior and exterior wythes carry horizontal and vertical loads. It was also common to substitute the unseen inner layer with concrete or cinder blocks.

The thick, solid brick walls provide the building’s structural support. They can support a wide variety of roofing. However, solid brick construction does not provide thermal insulation, so today’s builders use it primarily for structures that do not require energy efficiency.

The Benefits of Brick Veneer Over Solid Brick Walls

Brick veneer walls offer several advantages over solid brick exterior walls:

Energy-Efficiency

The thermal properties of brick make it an ineffective insulator. Adding insulation to the veneer cavity walls significantly increases the wall’s energy efficiency compared to solid brick walls.

Water Drainage

Brick veneer cavity walls use weep systems to remove the water from behind the bricks to the exterior. Solid brick walls resist moisture infiltration by shedding bulk water at the surface and by absorbing, storing, and then releasing moisture. However, if the brick becomes saturated (due to improper detailing or lack of maintenance), the masonry will deteriorate, affecting materials in the building’s interior.

Sto Masonry Veneer Wall Systems

Sto offers several simple-to-apply solutions to achieve brick veneer wall systems: Sto Masonry Veneer Engineered Systems and StoPanel Brick ci. Builders and architects appreciate the significant advantages of Sto brick veneer systems. Our complete wall systems include air and water-resistant barriers, thermal insulation, reinforcements, and many aesthetic facade options, like brick veneer. In addition, our brick veneer walls offer a sustainable, complete wall system with fire resistance.

StoPanel Brick ci

Lightweight, energy-efficient, and fire-resistant StoPanel® Brick prefabricated wall panels include gypsum sheathing, steel framing, exterior insulation, and continuous air barrier, with thin brick or masonry veneers, all at a fraction of the weight of traditional thick brick veneer. In addition, StoPanel® Brick meets or exceeds numerous building codes and sustainable standards.

StoPanel® Brick provides building code compliance for,

• 2021 IBC
  • Chapter 7: Fire Resistance Rated Construction
  • Chapter 16: Structural – Transverse Wind Load Resistance
  • Chapter 26: Types I-IV (noncombustible) Construction, Ignition Resistance, Surface Burning Characteristics
• NFPA 285 and NFPA 268 for noncombustible construction (Types I-IV). Refer to ICC ESR 1233 and HAI Project No. 1JJB05184.001.
• 2021 IECC
  • Chapter 4: Continuous Air Barrier
• 2021 IGCC
• • Chapter 6: Energy Conservation, Efficiency and Atmospheric Quality (Section 606: Building Thermal Envelope insulation and Air Sealing) Alternative Compliance Path: ASHRAE 189.1-2009

Sustainable StoPanel® Brick complies with,

• 2021 Energy Standards Compliance ASHRAE 90.1 Section 5: Continuous Air Barrier
• Green Building Standards Compliance ASHRAE 189.1 – 2009 Normative Appendix B: Continuous Air Barrier
• LEED Eligibility Eligible contributing towards credits in the following NC (New Construction) categories: Energy and Atmosphere (EA) Materials and Resources (MR) Innovation in Design (ID)

StoPanel Brick ci Project

Lightweight, energy-efficient StoPanel® Brick ci provides a complete prefabricated exterior wall panel with a continuous air and water-resistant barrier and exterior insulation with a veneer, like a thin brick.

Westwood Storage, Westwood, New Jersey.
Sto Products: StoPanel® Classic ci, StoPanel® Brick ci

Owner: The Hampshire Companies
General Contractor: Hollister Construction
Architect: SNS Architects & Engineers
PC Engineer: SNS Architects & Engineers

Contractors installed prefabricated StoPanels quickly and efficiently, despite the tight working conditions of this job site. In addition, architects accomplished the building’s complex finish design goals, including multiple textures, with a combination of two different StoPanel® systems: StoPanel® Classic ci and StoPanel® Brick ci.

StoTherm® ci MVES Brick Veneer

Fully tested, code-compliate StoTherm ci MVES offers an engineered insulating wall system with Adhered Masonry Veneer (AMV) – thin brick, ceramic tile, and cultured and natural stone. It incorporates continuous exterior insulation and air and water-resistant barrier with Sto high-strength masonry veneer adhesive to provide superior air and weather tightness with outstanding thermal performance and durability.

StoTherm® ci MVES creates energy-efficient, air- and water-resistant, and aesthetically pleasing commercial and residential or commercial walls, ideal for the climate extremes of North America. In addition, it offers an endless blend of color, texture, profiles, and effects to create customizable finished surfaces, including brick, applicable to any Sto wall system.

Sto Offers the Best Brick Veneer Systems

Lightweight, Sto brick veneer systems ( Sto Masonry Veneer Engineered Systems and StoPanel Brick ci.) provide architects and contractors with a single-source system that offers many brick patterns and colors for mortar and finished layers – perfect for retrofitting and new construction. In addition, our complete brick veneer systems contribute towards energy-efficient, moisture and fire-resistant, safe, and healthy buildings and homes.

Don’t hesitate to contact the Sto professionals today for more on brick veneer wall systems.

The post Brick Veneer Wall Systems Explained [Ultimate Guide] appeared first on Sto Corp..

What is Sustainable Design?

Sustainable design seeks to lessen the building’s negative impacts on the environment and improve the health and comfort of the occupants. More specifically, sustainable design decreases consumption of non-renewable resources, minimizes waste, and creates productive, healthy environments. Fortunately, EIFS architecture offers a superior building method for sustainable design.

What is EIFS Architecture?

The design, details, and engineering of exterior insulation and finish systems (EIFS) create a complete system (framing, cladding, and sheathing materials). The EIFS panels include a sustainable cladding system with a water-resistant barrier, drainage, and Continuous Insulation (CI) that reduces thermal loads on the structure’s exterior wall. In addition, fire-resistant EIFS passes fire resistance, ignitability, intermediate multi-story (NFPA-285), and full-scale multi-story corner tests, meeting and exceeding the standards set forth with each test.

StoTherm® EIFS Wall Systems

StoTherm® EIFS cladding systems combine continuous insulation (CI), air and water-resistant barrier, and many textured finishes to create a sustainable, high-performance wall cladding. The unique and durable system sustains maximum curb appeal and saves money through reduced energy bills. Impressively, architects and builders have used our products worldwide for decades for new and retrofit construction.

The Greenhouse Dispensary – Skokie, Illinois USA

Sto Products: StoTherm® ci and Stolit® Milano

Applicator: G & J Services, Inc.
Architect Camburas & Theodore, Ltd.:
General Contractor: Pacific Construction

The renovation of this nearly 70-year-old Greenhouse dispensary used the StoTherm® ci EIFS system to create flowing organic shapes. In the execution of a much-admired design, 3D modeling and precision laser cutting of complicated forms allowed the building to come together in pieces. Our Stolit® Milano finish literally makes the building shine.

StoTherm ci MVES

StoTherm ci MVES (masonry veneer engineered system) with masonry veneer in ceramic tile, natural stone, or manufactured stone meets applicable building code requirements. It incorporates continuous exterior insulation and air and water-resistant barrier with Sto high-strength masonry veneer adhesive.

White Castle, in Orlando, Florida USA

Sto Products: StoTherm® ci, StoTherm® ci MVES with stone, StoGuard®

Applicator: Rue Quality Systems
Distributor: FBM Orlando
General Contractor: Arlington Construction
Architect: MS Consultants

White Castle built their largest restaurant with a combination of StoTherm® systems to provide superior protection against Florida’s frequent tropical storms and hurricanes while matching the stucco and stone aesthetics of White Castle restaurants.

StoTherm® ci

Lightweight StoTherm combines the StoTherm® and the StoGuard® waterproof air barrier systems to improve energy efficiency and protect against moisture intrusion.

Ark Encounter, Williamstown, Kentucky USA

Sto Products: StoTherm® ci Essence

The renovation of this religious building utilized the Sto EIFS system

StoTherm® ci Essence

StoTherm® ci Essence (water-drainage EIFS system) provided this unique project with a decorative and protective exterior wall cladding, by combining the StoTherm® technology with StoGuard® waterproof air barrier to enhance protection against moisture infiltration and improve thermal performance and durability.

Maggie’s Center, London, UK

Sto Product: StoTherm® Mineral ci

Maggie’s Center in London utilized StoTherm® Mineral ci for their new, field-built healthcare center.

StoTherm® ci Mineral

The StoTherm® ci Mineral EIFS System incorporates non-combustible, mineral wool exterior CI and continuous water-resistant and air barrier with Sto’s high-performance finishes to create an advanced cladding assembly. 

Lido Beach Towers, Long Island, NY USA

Sto Products: StoGuard®, StoTherm Premier NExT

Renovation of the Lido Beach Towers condominium community restored it to her former glory. It also showcases the potential of EIFS as a retrofit method for deteriorating and aging buildings. The aesthetically pleasing second skin approach of EIFS significantly boosts the structure’s energy efficiency and sustainability.

StoTherm ci Lotusan®

Sto’s best continuous insulation wall system (EIFS), the StoTherm ci Lotusan® offers a high-performance, energy-efficient wall cladding that integrates several proven components – StoGuard®, waterproof air barrier, StoTherm® insulated cladding and drainage, and Stolit® Lotusan, a textured finish with self-cleaning properties.

Grand Concourse Academy, Bronx, New York, USA

Sto Systems & Products: StoGuard®, Sto Armor Mat Mesh, Stolit® Lotusan, StoSignature Stone, StoTherm® ci Lotusan, StoTurboStick

Applicator: Masucci Construction
Developer: Turner-Agassi Charter School Facilities Fund
General Contractor: McGowan Builders
Building Envelope Consultant: Frank Seta & Associates
Architect: LUBRANO CIAVARRA Architects

The Grand Concourse Academy Charter School used the StoTherm® ci Lotusan® wall system to meet two significant challenges: performance and aesthetics. The textured finish and dazzling color choices make the school stand out in a Bronx neighborhood dominated by red brick. The high-performing protective system also ensures it will stand up to whatever Mother Nature and the students throw at it.

StoTherm® ci Lotusan® Wall System

High-performing, energy-efficient StoTherm ci Lotusan® wall cladding integrates several proven components – StoGuard®, waterproof air barrier, StoTherm® insulated cladding, and drainage, making it Sto’s best continuous insulation wall system (EIFS). Furthermore, StoLit® Lotusan provides a textured finish with self-cleaning properties.

StoTherm® ci XPS

High-performing and durable StoTherm® ci XPS incorporates high R-value extruded polystyrene insulation into the wall assembly and Guard® fluid-applied air and water-resistant barrier, to produce water and airtight air walls ensuring thermal efficiency and durability.

StoTherm® ci HI-CM 180

Energy-efficient, high-performing, and hurricane-resistant Sto Therm® ci HI-LM CMU 180 offer a CI wall cladding that combines StoGuard® waterproof air barrier and StoTherm® insulated cladding and drainage capabilities over concrete masonry unit substrates. In addition, StoTherm® ci HI-CM 180’s engineering satisfies the testing requirements for large and small missile impacts.

StoTherm® ci 1177 -SM

High-performing StoTherm® ci 1177-SM exterior wall cladding assemblies combine a seamless air and water-resistant barrier with advanced drainage capabilities over glass mat gypsum sheathing. The engineering of StoTherm® ci 1177-SM fulfills the testing requirements for Small Missile impacts.

StoTherm® ci 1177 -LM

High-performing StoTherm® ci 1177-LM exterior wall cladding assembly provides a seamless air and water-resistant barrier with CI, advanced drainage capabilities, and Sto Armor Mat XX Mesh for added reinforcement and impact resistance over glass mat gypsum sheathing. The engineering of StoTherm® ci 1177-LM achieves the testing requirements for small and large missile impacts performance on 16-gauge steel studs with gypsum sheathing.

StoTherm® ci HI-PLY

High-performing StoTherm® ci HI-PLY exterior wall cladding assembly integrates a seamless air and moisture barrier with CI and advanced drainage capabilities over CDX exterior plywood sheathing. The engineering of Sto
Therm® ci HI-Ply meets the testing requirements for small and large missile impacts.

Why Choose Sto EIFS for Your Next Building or Renovation Project?

Sto offers many EIFS wall systems options, including drainable EIFS, to fit all your aesthetic and performance needs for new and retrofit construction, to help you achieve the best design performance, flexibility, and sustainability levels.

Sto EIFS cladding systems combine CI, air and water-resistant barriers, and numerous textured finishes to create a sustainable, high-performance wall cladding. The distinctive and durable system sustains maximum curb appeal and saves money through lower energy bills.

For more on EIFS architecture, don’t hesitate to contact the Sto professionals today at (800) 221-2397.

The post EIFS Architecture: Everything You Should Know appeared first on Sto Corp..

The effectiveness of the exterior finish depends entirely on installing it correctly and professionally. Therefore, ICF exterior finishings that install simply and efficiently will improve your chances of the long-term durability of the wall system. Fortunately, Sto ICF Finish Systems offer a single-source solution for creating an ICF exterior wall and finishing solution, to ensure its appealing, long-lasting curb appeal.

Sto Offers the Best ICF Exterior Finishing Solutions

Sto’s specialized finish systems offer an ICF above-grade wall assembly in three finish system options for new construction. Each option offers long-lasting protection, to provide endless exterior finishing solutions with an expansive range of color and texture choices.

Sto ICF Exterior Finishing Options

Sto recommends the finishing option based on the shape of the wall, the ties location on the foam, and the need for extra insulation and a harder finishing surface.

Option 1: Sto ICF – Coating System

We recommend Option 1, a multiple-layer decorative and protective finish system, for straight, flat ICF walls requiring little leveling, with ties embedded at least 1/2 inch inside the ICF form. Option 1 utilizes a Sto base coat, an optional Sto primer, reinforcing mesh, and a Sto finish.

Sto ICF Coating System provides,

• Direct application on exterior above-grade ICF wall construction
• Barrier wall construction drainage
• Energy efficiency with the continuous exterior insulation of the ICF
• Air and moisture protection with ICF Barrier wall construction with a concrete air barrier
• The reinforcing mesh embedded in the base coat provides standard impact resistance.

Option 2: StoTherm® ci Cladding Systems

We recommend Option 2 for non-straight and non-flat walls requiring leveling and ties less than 1/2 inch inside the foam. Option 2 also works best if you need additional continuous insulation on the building’s exterior. The insulation will help promote energy efficiency and meet the current building codes of your climate zone.

StoTherm® ci cladding systems add continuous insulation to the exterior and include reinforcing mesh, an optional Sto Primer, and one of the many Sto textured finishes to create a sustainable, high-performance wall cladding. The unique and durable system sustains maximum curb appeal and saves money through lower energy bills.

StoTherm® ci Cladding Systems offer,

• StoTherm® ci Cladding Systems apply on the exterior above-grade ICF wall for new construction
• Drainage wall construction, when properly integrated with flashing
• Premium energy efficiency due to the addition of exterior CI to the ICF
• Air and moisture protection with ICF backup wall construction with StoTherm® continuous insulation system
• The reinforcing mesh embedded in the base coat provides medium impact resistance.

Option 3: Sto ICF – Stucco System

We recommend the Stucco Coating System if you need a harder finishing surface. StoPowerwall Stucco includes stucco, a metal lath, Sto Primer, and a Sto finish. The combination ensures the long-term durability and strength of traditional stucco with StoGuard moisture protection and Sto high-performance with finishes and coatings that keep moisture out. The system also provides a variety of design options.

Sto ICF Stucco System provides,

• Sto ICF Stucco System applies on exterior above-grade ICF new wall construction with metal lath and paper backing anchored into ICF web ties or concrete.
• Limited drainage when integrated adequately with flashing
• High energy efficiency due to the continuous insulation of the ICF
• Moisture and air protection with the ICF backup wall construction and code-compliant WRB with StoPowerwall® Stucco Finish System

Sto’s Architectural Coatings and Textured Finishes for ICF

Sto offers a wide range of attractive, durable, and dirt- and water-resistant finishes that produce a flexible, strong layer of protection. We manufacture our finishes in ISO-certified facilities to meet strict quality control standards. Our finishing products contain pure white marble aggregate and 100-percent acrylic polymers that come in a variety of textures, profiles, and an extensive range of colors, to enhance your design and harmonize with the surrounding environment.

Sto Specialty ICF Finishes

Sto Specialty Finishes offer durability, long-term performance, and substantial cost savings. In addition, our lightweight, easy-to-install finishes lessen structural requirements, require fewer specialty trades, and save money compared to traditional cladding material. Sto Specialty Finishes come in endless design choices to accommodate the aesthetics and designs for the exterior of any home or building.

StoCast Brick

Lightweight, flexible, easy-to-apply, and durable custom-made resin cast bricks come in 30 standard brick colors, patterns, and textures, providing an ideal solution for projects calling for the look of traditional or customized “classic” brick.

StoCast Wood

Lightweight, flexible, resin-cast wood grain planks stained with StoColor® Wood Stain
(available in a wide range of colors in glossy or matte finish) or coated with Sto’s high-performance architectural coatings create an authentic wood appearance. Durable StoCast provides a low-maintenance alternative to natural or engineered wood cladding.

StoColor Metallic

StoColor® Metallic achieves a metallic panel appearance in various colors and textures by combining StoColor Metallic Top Coat (a lightweight acrylic-based coating with metallic effect pigments) applied over StoColor Metallic Base. The two layers create luminous depth, allowing subtle light-induced color shifts to produce a dynamic metal look.

StoTique®

StoTique coating achieves an antique-speckled or another custom decorative effect. You can use it over existing EIFS, stucco, painted wall surfaces, or any Sto textured or smooth finish coating.

StoCreativ® Lux

StoCreativ® Lux wall finish combines the texture and depth of natural stone with the luster of reflective materials, costing just a fraction of real stone or metal. The versatility of this lightweight, trowel-applied finish allows for use in interior and exterior design applications. Durable StoCreativ® Lux comes in six different looks and works well with extremely intricate architectural shapes.

StoCreativ® Granite

Durable and low-maintenance StoCreativ® Granite offers an acrylic-based exterior and interior wall finish for new construction or renovation. The design of trowel-applied StoCreativ® Granite gives it the look of cut or polished granite but in a lightweight, versatile finish coating.

Sto GraniTex™

Low-maintenance, durable, Sto GraniTex™ provides an acrylic-based interior and exterior wall finish for new construction and renovation. Spray-applied Sto GraniTex™ comes in various color combinations designed to feel and look like natural stones.

Sto Offers the Best ICF Exterior Finishing Solution

Easy-to-install Sto ICF Finish Systems offer a single-source solution to creating aesthetically beautiful exterior buildings and homes. Sto ICF exterior finishing options also produce durable, low-maintenance, long-lasting, and energy-efficient wall systems in an extensive range of colors, textures, and profiles to meet all your aesthetic and performance requirements.

For more on the best ICF exterior finishing solution, contact the Sto professionals today at (800) 221-2397.

The post The Best ICF Exterior Finishing Solution appeared first on Sto Corp..

The design of the cladding system must ensure durability, sustainability, and energy efficiency. The building cladding influences the look and feel of the surrounding area, so it should give visitors a memorable first impression of the building.

What is a Cladding System?

The building cladding refers to all the building components that are attached to its primary structure (parts that keep it standing), that form the external, non-structural surfaces. Often, cladding attaches to the building’s structural frame as prefabricated panels, whether it’s cladding systems for high-rise buildings or residential homes.

A high-performing cladding for buildings provides more than just a building’s exterior facade and aesthetics. Quality building cladding systems:

• Protect the structures from external elements (rain, snow, wind, ice)
• Minimize the spread of fire
• Provide thermal insulation to create air tight building envelope to manage the inside environment
• Transfer impact and wind loads to the structural framework
• Provide privacy and security and prevent the transmission of sound
• Provide openings for ventilation, daylight, and access

Properly-installed, high-quality, well-designed cladding materials for buildings minimize air leakage, maximize thermal performance, and optimize natural daylight. These features lessen the need for electrical and mechanical systems and contribute toward a sustainable, energy-efficient, safe, and durable building.

The Four D’s of High-Quality Cladding Systems

High-quality cladding systems must provide consistent deflection, drainage, drying, and durability:

1. Drainage refers to cladding materials’ capacity to allow water that gets behind the outer surface to drain. Applying a water-resistant barrier over the sheathing and a drainage gap between the sheathing and the cladding can provide adequate drainage. However, stucco cladding, which can’t handle large volumes of water, often needs enhanced drainage, requiring a drainage mat to increase the space between the cement membrane and WRB. The space permits more accessible water flow down and out from within the cladding.
2. Deflection refers to the cladding’s ability to consistently deflect ice, snow, and rain that attacks the outside wall surface. In addition, you can assist the water deflection with gutters and overhangs.
3. Drying refers to a cladding system’s permeability or ability to permit ventilation within the system to encourage drying. Building codes often require vapor-permeable exterior cladding to permit moisture or condensation to travel through it as a vapor when heated by the sun. Including open space at the top and base of the wall cladding will allow airflow and additional drying.
4. Durability refers to the cladding system’s ability to resist continuous exposure to ultraviolet (UV) rays, thermal contraction and expansion, and wetting-and-drying cycles. Durable cladding systems will help stop leaks and protect the building envelope’s integrity.

Other essential features to consider when choosing a high-performance cladding system include:

• Ease of installation
• Continuous insulation, adequate airtightness, and control of thermal movement
• Low-maintenance
• Fire resistance

Sto High-Performance Cladding Systems

Sto offers various simple and quick-to-install, high-quality cladding systems that meet the requirements for water drainage and deflection, permeability, airtightness, fire resistance, low maintenance, and long-lasting durability, to preserve a building’s integrity for its lifetime. We cover every feature of our wall systems under a single-system warranty.

Our systems combine all of the wall components into one tested, code-compliant system: continuous thermal insulation, air and water-resistive barrier, and endless aesthetic facade surface choices to meet all the needs of your design. In addition, you can combine several facade aesthetics into one system without transitions and product compatibility design difficulties.

Our tested systems at Sto also ensure that all components work together as mandated by today’s building codes:

• Sto high-performance wall systems provide air leakage below 0.04 cfm/ft2 at 1.57 psf (0.2 L/s•m2 at 75Pa) when tested according to ASTM E2357 – a feature that potentially saves 40 percent in cooling and heating costs.
• Sto’s wall cladding’s high R-value ( e.g. StoTherm® has an R-Value of 3.6 per inch) limits thermal bridging and lessens energy use. 
• Sto products achieve a Class A rating when tested in accordance with ASTM 84 for Flame Spread and Smoke Development.
• Sto walls have achieved several sustainable credentials:
  • Manufactured in ISO 9001 (Quality) and ISO 14001 (Environmental)  certified factories
  • SCAQMD (South Coast Air Quality Management District) VOC requirements
  • C-ES durability and fire protection criteria
• Sto wall systems that contain combustible insulation or other combustible elements meet the requirements of:
  • NFPA 268 fire testing, which offers a method to assess the chance for a fire in one building to ignite a nearby building.
  • NFPA 285 fire testing, which evaluates the fire performance of wall assemblies with combustible insulation or other combustible components in noncombustible construction.
  • ASTM E 119 fire testing, which establishes the hourly fire-resistance rating of the wall assembly.

30 Sto High-Performance Cladding Systems

Drainable EIFS (Exterior Insulation Finishing System) – StoTherm® ci Wall Systems

StoTherm® ci cladding systems combine continuous insulation (ci), drainage, air and water-resistive barrier, and many aesthetic finish options to create a sustainable, high-performance wall cladding. The beautiful and durable system maintains long-lasting curb appeal and saves money through reduced energy bills.

1. StoTherm® ci MVES

StoTherm® ci MVES (masonry veneer engineered systems) with masonry veneer in ceramic tile, natural stone, or manufactured stone conforms to relevant building code requirements.

2. StoTherm® ci Mineral

The StoTherm® ci Mineral system incorporates non-combustible, mineral wool insulation and continuous water-restrictive and air barrier with Sto’s high-performance finishes to create an advanced high-quality wall cladding system.

3. StoTherm® ci XPS

High-performance and durable StoTherm® ci XPS incorporates elevated R-value extruded polystyrene insulation into the wall assembly and StoGuard® fluid-applied air and water-resistive barrier, to produce a water and airtight wall, and ensure thermal efficiency and superior durability.

4. StoTherm® ci

StoTherm® ci combines StoTherm® and the StoGuard® air and water-resistive barrier system for increased energy efficiency and protection against moisture infiltration.

5. StoTherm® ci HI-LM CMU 180

Energy-efficient, high-performing, and hurricane-resistant StoTherm® ci HI-LM CMU 180 is a continuous insulation wall cladding that combines StoGuard® waterproof air barrier, StoTherm® insulated cladding, and drainage. In addition, the StoTherm® ci HI-LM CMU 180’s engineering meets the strict Miami-Dade County, Florida NOA criteria for small and large missile impact resistance, water and air infiltration, and wind load resistance.

6. StoTherm® ci 1177-LM

The high-performance StoTherm® ci 1177-LM exterior wall cladding system combines seamless air and water-resistive barrier with continuous insulation, advanced drainage potential, and Sto® Armor Mat XX Mesh for added reinforcement and impact resistance over glass mat gypsum sheathing. The engineering of StoTherm® ci 1177-LM meets the strict Miami-Dade County, Florida NOA testing criteria for small and large missile impact resistance and performance on 16-gauge steel studs with gypsum sheathing.

7. StoTherm® ci 1177-SM

The StoTherm® ci 1177-SM exterior wall cladding system combines seamless water and air barrier with continuous insulation and advanced drainage potential over glass mat gypsum sheathing. In addition, the engineering of StoTherm® ci 1177-SM meets the stringent Miami-Dade County, Florida NOA standard for small missile impact resistance, water and air infiltration, and wind load resistance.

8. StoTherm® ci HI-PLY

The StoTherm® ci HI-PLY exterior wall cladding system combines seamless water-restrictive and air barrier with continuous insulation and advanced drainage potential over CDX exterior plywood sheathing. In addition, the engineering of StoTherm® ci HI-Ply meets the strict Miami-Dade County, Florida NOA testing standard for small and large missile impact resistance, water and air infiltration, and wind load resistance.

StoVentec® Rainscreen Systems

Rainscreen claddings protect against damaging moisture (especially crucial with water-absorbing claddings) by providing a ventilation gap between the siding and water and air barrier. A small gap (as tiny as ½-inch) permits adequate drainage and drying.

StoVentec® Systems are a complete, fully-tested, and code-approved high-quality ventilated Rainscreen® system that includes water-restrictive and air barrier, non-combustible mineral wool insulation, an installer-friendly, adjustable sub-framing system, and our outstanding StoVentec® Rainscreen® cladding.

In the U.S., StoVentec® ventilated rainscreen cladding systems come in several finishes to provide designers with a range of aesthetic options to create unique building facades with high-performance engineered characteristics.

9. StoVentec® for Masonry Veneer Facades

StoVentec® masonry veneer facades provide a drained and back-ventilated rainscreen wall system with aesthetic options of thin brick, tile, and masonry.

10.StoVentec® Glass

StoVentec® Glass is an open joint, drained, and back-ventilated rainscreen wall system with an opaque glass facade in aesthetic options of back-colored glass, custom printed glass, and frosted glass.

11. StoVentec® Render

StoVentec® Render is a drained and back-ventilated rainscreen wall assembly that offers performative aesthetics including Sto textured finishes, Stolit Lotusan self-cleaning textured finish, Sto specialty finishes and Sto Cast, Sto’s prefabricated resin cast shapes.

StoPanel Technology Systems Prefabricated Exterior Wall Panels

Sto’s prefabrication solution, Sto Panel Technology®, is finished exterior wall panels. The StoPanel® system panels contain cold-formed metal framing and other applicable components, including glass mat sheathing, continuous insulation, water-restrictive and air barrier, sub-framing, and a facade aesthetic. Thermally insulating the exterior of the wall structure with continuous insulation makes them compliant with the latest standards and codes (ASHRAE 90.1-2019 and IBC, IRC, and IECC – 2018 and 2021).

Prefabrication provides several significant benefits:

• Helps to stay on budget
• Lessens change orders
• ݈Lowers delivery time and labor needs
• Improves quality control and assurance
• Boosts job site safety
• Reduces construction wastes

12. StoPanel® Classic NExT ci

StoPanel® Classic NExT ci prefabricated wall panels include gypsum sheathing, steel framing, and StoTherm® ci facade.

13. StoPanel® Mineral ci

StoPanel® Mineral ci prefabricated wall panels include gypsum sheathing, steel framing, non-combustible continuous insulation, continuous air and water-resistive barrier and a wide variety of Sto textured and specialty finishes.

14. StoPanel MVES

StoPanel® MVES prefabricated wall panels include gypsum sheathing, steel framing, and Adhered Masonry Veneer (AMV) – thin brick, ceramic tile, natural stone, or cultured stone.

15. StoPanel® Impact ci

StoPanel® Impact ci prefabricated wall panel includes gypsum sheathing, steel framing, and a StoTherm ci system, designed to meet the Miami-Dade small and large missile impact requirements.

16. StoPanel® Dri-Design®

StoPanel® Dri-Design® prefabricated wall panel includes gypsum sheathing, steel framing, and Dri-Design® metal facade.

17. StoPanel® Swisspearl®

StoPanel® Swisspearl® prefabricated wall panel includes gypsum sheathing, steel framing, and Swisspearl fiber cement facade.

18. StoPanel® 3DP Powered by Branch Technology

Sto Panel Technology® and Branch Technology creates a superior 3-dimensional design for exterior walls. The prefabricated, panelized wall combines the building envelope layers into a customizable 3D printed lightweight, easy-to-install, robust, and composite shape. In addition, the branch’s unique Cellular Fabrication (C-Fab®) 3D printing process can create a highly unique and functional architectural facade panel in virtually any form or shape.

19. StoPanel® XPS

StoPanel® XPS prefabricated wall panels include gypsum sheathing, steel framing, and StoTherm® ci facade that includes Extruded Polystyrene Foam Insulation.

20. StoPanel® Brick

StoPanel® Brick prefabricated wall panels include gypsum sheathing and steel framing, with thin masonry or brick veneers.

21. StoPanel® Precast

StoPanel® Precast prefabricated wall panels include gypsum sheathing, steel framing, and various integral decorative and protective finish choices to replicate precast concrete.

22. StoPanel® Metal

StoPanel® Metal prefabricated wall panels include gypsum sheathing, steel framing, and metal facade.

23. StoPanel® Backup

StoPanel® Backup prefabricated wall panels contain steel framing, gypsum sheathing, and an air/water-restrictive barrier. Builders apply the facade on-site.

StoQuik® Silver Systems Cement Board Stucco

StoQuik® Silver Systems combine the moisture protection of StoGuard air and water-resistive barrier with the draining and drying of a drainage mat, the strength of a cement board substrate, and the versatile performance and selections of Sto’s textured finishes – without complicated installation, moisture exposures, and labor steps of traditional stucco.

24. StoQuik® Silver DrainScreen™

Durable StoQuik® Silver DrainScreen™ cement board stucco system provides excellent energy efficiency and improved water drainage.

25. StoQuik Silver® DrainScreen™ MVES

High-impact and weather-resistant StoQuik® Silver DrainScreen™ cement board stucco system provides superior moisture protection for exterior vertical above-grade walls in low-rise commercial, institutional, and residential construction. It combines the StoGuard® air and water-restrictive barrier with the strength of cement board substrate while achieving the aesthetic of masonry veneers such as thin bricks, natural stone, ceramic tiles, and manufactured and culture stones

In addition, StoQuik® Silver DrainScreen™ features Sto DrainScreen technology to promote superior drainage and drying of the wall system. It also incorporates StoColl masonry veneer adhesive, a high-performance polymer modified portland cement thin-set adhesive to produce an advanced engineered wall cladding system.

StoPowerwall® Stucco Systems

26. StoPowerwall® Stucco Systems

StoPowerwall® Stucco Systems provide fully-tested stucco systems with superior moisture management and comprehensive design options, to ensure low-maintenance and durable claddings with all the protection and energy efficiency of StoGuard®.

StoPowerwall® Stucco Systems combine protective and aesthetic elements into a superior wall cladding, including StoGuard® fluid-applied moisture and air barrier, StoPowerwall® Stucco, and Sto textured finishes and coatings that keep out moisture while furnishing many design options. In addition, Sto systems include the Sto DrainScreen drainage mat for added moisture protection and optional Crack Defense, an added fortification layer for preventing cracking.

27. StoPowerwall® DrainScreen MVES

The StoPowerwall® DrainScreen MVES stucco wall assembly with masonry, thin brick, tile, or cultured stone veneer, includes the moisture protection of StoGuard® water-restrictive and air barrier and Sto DrainScreen to lessen the risk of water accumulation.

28. StoPowerwall® ci

StoPowerwall® ci energy-efficient stucco wall assemblies include continuous insulation of outbound extruded polystyrene (EPS).

29. StoPowerwall® ExtraSeal®

The StoPowerwall® ExtraSeal® stucco wall system applies directly to concrete masonry units with Sto ExtraSeal moisture and air protection.

30. StoPowerwall® DrainScreen

The StoPowerwall® DrainScreen stucco wall systems integrate the durability and strength of traditional stucco with StoGuard moisture protection, Sto DrainScreen, and Sto high-performance finishes. However, it does not include insulation.

Why Select Sto’s High-Performance Cladding Systems?

Sto’s 30 cladding systems offer all the crucial components a high-performance cladding system needs to provide moisture protection through deflecting, draining, and evaporating moisture on the inside and outside of the wall assembly. They also create energy-efficient, long-lasting, and durable cladding systems.

Furthermore, quick and easy-to-install, Sto systems integrate all the wall components into one unit:

• Air and water-resistive barrier
• Continuous insulation
• Reinforcement system
• Endless aesthetic facade surface options to accommodate all the needs of your designs without the design challenges of transitions between systems

Download our comprehensive guide on engineered building enclosures today for more on high-performance cladding systems.

The post 30 High Performance Cladding Systems appeared first on Sto Corp..

Exterior Insulation Finishing Systems (EIFSs) provide an insulated, finished surface that creates exterior walls with superior moisture and temperature control performance over other cladding products like brick, stucco, and cement fiberboard siding.

Simple-to-install, EIFS siding applies in multiple layers over an exterior sheathing to produce an energy-efficient, low-maintenance, fire-resistance, beautiful, and versatile exterior cladding. The typical layers (components) of EIFS include:

• An air and water-resistive barrier over the substrate that stops air leaks and moisture from infiltrating the system.
• Expanded polystyrene (EPS), extruded polystyrene (XPS), or mineral wool layers that add insulation and enhance energy efficiency.
• A layer of fiberglass mesh that adds crack-resistance and provides reinforcement. It also protects against crumbling and cracks due to thermal expansion, shifting foundations, and freeze/thaw cycles.
• A water-resistant base coat, embedded into the glass-fiber reinforcing mesh, applies insulation’s top, to provide a weather barrier.
• A finishing coat or cladding surface that creates the color, texture, and protective nature of the structures’ exterior surfaces.

Unlike some EIFS systems, StoTherm® ci Wall Systems Drainable EIFS provides a more modern approach to EIFS technology with drainage that helps to prevent moisture from entering the wall cavity.

All long-lasting EIFS types should provide straightforward application and offer impact and condensation resistance, excellent energy efficiency, and design flexibility.

Impact Resistance

Designing EIFSs with a high-impact mesh substantially improves their impact resistance.

Condensation Resistance

EIFS insulation thickness should stop the interior air from reaching the dew point (the temperature that water vapor turns to water), in order to minimize condensation within the wall system.

Quality Sealants

Preventing water intrusion to the wall system must include proper installation of quality sealants.

Energy-Efficiency

All EIFS provide continuous insulation (CI) which lessens energy use, saves money, and meets today’s energy codes.

Design Flexibility

EIFS allows you to customize the aesthetic of the cladding system to fit the needs of your project.

A Modern Approach to the EIFS Technology Drainable StoTherm® ci Wall Systems EIFS

The International Building Code and ASTM International define traditional EIFS as a non-load bearing, exterior wall cladding system with an insulation board attached either adhesively or mechanically to the substrate, a reinforced base coat, and a textured protective finish coat.

StoTherm® ci Wall Systems Drainable EIFS improves on traditional EIFS technology by adding drainage to their wall systems. Our systems also include continuous insulation (ci), air and water-resistive barrier, and many performative aesthetics to create a sustainable, high-quality wall cladding. The durable and unique system sustains its curb appeal and saves money through lower energy bills.

Sto offers several StoTherm ci Systems, including four StoTherm ci Hurricane Impact Systems.

StoTherm® ci XPS

Long-lasting and high-performing StoTherm® ci XPS incorporates high R-value extruded polystyrene insulation into the wall system and StoGuard® air and water-resistive barrier, ensuring durability and thermal efficiency.

StoTherm ci MVES

Builders can use StoTherm ci MVES (masonry veneer engineered system) system with masonry veneer, ceramic tile, natural stone, or manufactured stone as a facade finish to acheive masonry aesthetics while meeting applicable building code requirements.

StoTherm® ci

Lightweight StoTherm® ci combines the StoTherm® and the StoGuard® air and water-resistive barrier systems to improve energy efficiency and protect against moisture intrusion.

StoTherm® ci Mineral

The StoTherm® ci Mineral System incorporates non-combustible, mineral wool exterior insulation and continuous air and water-resistive barrier with Sto’s high-performance finishes to produce an advanced high-performance cladding system.

StoTherm® ci HI-CM 180

High-performing, hurricane-resistant, and energy-efficient, StoTherm® ci HI-LM CMU 180 provides a CI wall cladding by combining several components to enhance its performance over concrete masonry substrates: StoGuard® air and waterproof barrier, StoTherm® insulated cladding, and drainage capabilities. Additionally, StoTherm® ci HI-CM 180’s engineering satisfies the testing requirements for small and large missile impacts.

StoTherm® ci 1177 -SM

High-performing StoTherm® ci 1177-SM exterior wall cladding systems combine a seamless air and water-resistive barrier with advanced drainage capabilities compared to glass mat gypsum sheathing. In addition, the engineering of StoTherm® ci 1177-SM complies with the testing requirements for small missile impacts.

StoTherm® ci 1177 -LM

High-performing StoTherm® ci 1177-LM exterior wall cladding system combines seamless air and water-resistive barrier with CI, advanced drainage capabilities, and Sto Armor Mat XX Mesh for added impact resistance and reinforcement compared to glass mat gypsum sheathing. The engineering of StoTherm® ci 1177-LM achieves the testing requirements for large and small missile impact performance on 16-gauge steel studs with gypsum sheathing.

StoTherm® ci HI-PLY

High-performing StoTherm® ci HI-PLY exterior wall cladding systems integrate seamless air and water-resistive barrier with CI and advanced drainage capabilities for use with CDX exterior plywood sheathing. The engineering of StoTherm® ci HI-Ply also meets the testing requirements for large and small missile impacts.

Why Choose StoTherm ci EIFS Systems?

StoTherm ci Systems advanced integrated wall assemblies combine aesthetic and protective components into high-performing wall cladding, that features:

StoTherm® ci Cladding Systems

StoTherm® ci combines drainage, CI, air and water-resistive barrier, and endless choices of textured finishes and surfaces to produce a sustainable, high-quality wall cladding. The durable system maintains its attractive curb appeal and saves money through reduced energy bills. Sto offers eight StoTherm ci Systems, including four StoTherm ci Hurricane Impact Systems.

StoGuard® Fluid-applied air and water-resistive barrier

StoGuard®’s fully-adhered seamless monolithic exterior wall air and water-resistive barrier system protects against unwanted air movement and moisture infiltration – ideal for all types of construction. You can apply StoGuard® with airless spray or a roller, which speeds up the application and simplifies integration with other wall system components.

Sto Textured Finishes

Sto Performative Aesthetics provide architects with complete design freedom with an expansive selection of finishes in endless textures and color options. We manufacture durable Sto finishes to the highest quality standards to resist dirt and water in order to protect your home or building while providing long-lasting curb appeal.

Sto Offers the Best EIFS Siding Options

StoTherm ci Systems checks all the boxes for a high-quality EIFS siding option – excellent moisture management, durability, low maintenance, the energy efficiency of the StoGuard® air and water-resistive barrier system, and comprehensive design options.

Learn more about EIFS siding options within our selection of inspirational case studies and don’t hesitate to contact one of our knowledgeable representatives today. 

The post The Best EIFS Siding and Cladding Options appeared first on Sto Corp..

What is EIFS?

The design, details, and engineering of StoTherm® EIFS create a sustainable, durable complete exterior wall system that contains all five planes of control (air and water-resistive barrier, thermal insulation, reinforcement, and aesthetic facade surface). EIFS brick exterior walls provide many benefits:

• Quick and Simple Construction: StoTherm® EIFS brick offers the composition and versatility of a complete wall cladding system that provides contractors, architects, and engineers with a single-source and simple-to-use solution for compliance with current energy codes.
• Energy Efficiency: StoTherm® EIFS brick solution offers increased-continuous insulation that lessens thermal bridging and improves air and water infiltration management to create a higher-performing structure with lower energy consumption.
• Fire Resistance: StoTherm® EIFS also complies with NFPA 285 (referenced in 2021 IBC Section 1403.5) and limits fire spread horizontally and vertically.
• Durable and Low Maintenance: StoTherm® EIFS systems ensure consistent and superior quality, improved durability, and reduced maintenance costs.
• Design Flexibility: StoTherm® EIFS brick’s design flexibility allows for custom sizes and shapes with many finish options. It’s important to note that some situations may limit the size.

Benefits of Sto EIFS Brick Construction

Sto offers three easy-to-apply solutions to achieving brick aesthetics with EIFS: StoSignature Brick, StoCast Brick, and StoTherm MVS. Each solution provides significant benefits during and after its application.
StoSignature Brick for Sto EIFS

Applying StoSignature Brick over StoTherm® EIFS offers a modern approach to EIFS technology that creates the classic look of brick with:

• lower structural costs due to cladding’s weight of less than 2 lb ft2
• continuous insulation, and
• an integrated water-proof air barrier.

The Benefits of StoSignature Brick

Installing StoSignature Brick over StoTherm EIFS panels offers builders, architects, and designers three benefits over traditional brick cladding for new construction or renovation of commercial, residential, or institutional projects:

1. It is quick and easy to apply, which saves builders time and money:

• Self-adhering stencils are applied over a primer layer to produce a mortar look, which saves both time and money by reducing labor and materials.
• It lessens the need for structural support required by heavier claddings.
• Easily installs in tight spaces, unlike heavy brick, making it ideal for restoring buildings in urban areas.
• It can be installed on your timeline to avoid time delays due to subcontractors and manufacturers.
• Combines with other Sto finishes for multi-cladding aesthetics to avoid the hassles of dealing with multiple suppliers and trades on the job site.

2. It is made with sustainable materials that provide increased energy efficiency:

• Builders can install StoSignature Brick over any Sto continuous insulation (ci) wall system for a proven and single-source solution that meets ASHRAE design standard 90.1-2010 and the new IGCC/IECC energy code requirements.
• The production and end-of-life of lightweight materials create less solid waste than heavier claddings.
• It provides an environmentally-friendly solution to a heavier brick that creates CO2 during manufacturing and transportation. Natural brick also requires mining raw materials that pollute nearby rivers and streams and destroy the surrounding ecosystem.

3. It offers exceptional design flexibility and aesthetic choices:

• It comes in a wide range of decorative and protective 100-percent acrylic wall finishes in unlimited colors.
• It allows you to match any brick veneer textures (including aged brick found in building restoration) by varying application techniques and finish color combinations.
• The lightweight wall finish system can create decorative custom shapes that are impossible to achieve with heavy claddings.

How to Apply StoSignature Brick

Builders can simply and quickly apply StoSignature Brick over any prepared surface, like StoTherm Next EIFS (which effectively levels the wall system) to create the classic appearance of brick.

1. Apply StoPrime® UV 80806 primer over Sto base coat. Weather-resistant StoPrime® UV 80806 primer replicates the color and texture of mortar joints.
2. Apply the Sto Brick Stencil to the dry primer. The most popular stencil is the NY brick ⅜-inch, 28PT. The overall look of the brick requires careful and proper application of the stencil, with the border joints lining up with the window, doors, and other details, just like an application of brick.
3. Go over the applied stencils with a steam or paint roller, being careful not to tear the stencil.
4. Secure the individual stencils with a ⅜-inch piece of filament tape.
5. Apply the Sto finish up and down, then left and right to ensure that you fill the stencil cells. Sto architectural coatings come in multiple sheens, textures, and colors. The vapor permeability and low VOC coatings provide fade- and mold-resistance, crack bridging, and self-cleaning properties.
6. Trowel horizontally along the border joints, carefully positioning the trowels so that all trowel lines fall on the border joints.
7. Allow the finish to dry for 10 to 15 minutes, depending on the weather conditions.
8. Use a damp, soft sponge to remove large irregularities.
9. Let the finish dry for 24 hours.
10. After completely drying the finish, you can add aesthetic touches to enhance and alter the color of the brick.
11. Carefully remove and discard the single-use Sto Stencil.

StoCast Brick

Lightweight, thin, sustainable, flexible, easy-to-apply, and durable StoCast Brick comes in 30 standard bricks or project-specific colors, patterns, and textures. It works well with any building style – modern, traditional or rustic design. In addition, StoCast Brick bonds to the substrate instead of bricklaying, providing an ideal solution for achieving the look of conventional brick. StoCast Bricks come in flat, corner, and lintel shapes. It installs on Sto wall systems and prepared vertical above-grade concrete, concrete masonry units (CMU), stucco walls, ceilings, and soffits.

The Benefits of StoCast Brick

• Design Flexibility: StoCast Brick’s custom-made resin cast bricks create unique designs and achieve the authentic look of brick in any color and texture on a variety of wall systems, ceilings, and soffits in both new and existing constructions.
• Easy Application: StoCast Brick easily applies at the job site and offsite, serving as a finishing component in creating manufactured prefabricated panels, like Sto Panel Technology®. Furthermore, you can easily cut dust-free StoCast Brick, making them adaptable to any design.
• Sustainable: Thin and lightweight StoCast Brick significantly reduces manufacturing and transportation energy use, lessens wastes, and allows for more significant conservation of natural resources.
• Made with Acrylic Polymers: Durable, freeze/thaw, and UV resistant, StoCast Brick offers superior flexural strength and resists cracking.
• Organic Mortar: StoCast Brick dramatically lessens the risk of efflorescence associated with Portland cement-based masonry mortars.
• Prefabricated: Quick to install, StoCast Brick offers consistent quality and aesthetics.

StoTherm ci MVES

StoTherm ci MVES provides an excellent solution for creating energy-efficient, air- and water-resistant, and aesthetically pleasing residential or commercial walls in the climate extremes of North America. In addition, it offers an endless blend of color, texture, profiles, and effects to create customizable finished surfaces, including brick.

StoTherm ci MVES offers an engineered insulating wall system with Adhered Masonry Veneer (AMV) – thin brick, ceramic tile, natural stone, or cultured stone. It incorporates continuous exterior insulation and air/water barrier with Sto high-strength masonry veneer adhesive to provide excellent air and weather tightness with superior thermal performance and durability.

The Benefits of StoTherm ci MVES

• Design Versatility: StoTherm ci MVES comes in various masonry veneers on a single, compatible substrate that integrates seamlessly with Sto finishes.
• Energy-Efficient: StoTherm ci MVES provides continuous exterior insulation, reducing heating and cooling costs.
• Fire-Resistant: StoTherm ci MVES improves occupant safety.
• Lightweight: StoTherm ci MVES lowers structural costs over thick and heavy traditional masonry veneer.
• Air and Water Resistance: StoTherm ci MVES’s continuous air and water barrier stops water infiltration, helping to reduce energy use.
• Code Compliant: Fully tested and building code compliant with all construction types, StoTherm ci MVES gives builders and architects peace of mind.
• Durability: To ensure long-lasting durability and performance, StoTherm ci MVES underwent thorough system-level structural, wind, and fire load testing

The Best EIFS Brick Solutions – StoCast Brick, StoTherm ci MVES, and StoSignature Brick

Lightweight, StoCast Brick, StoTherm ci MVES, and StoSignature Brick provide builders and architects with a single-source system that is available in many brick patterns and colors for mortar and finished layers – perfect for restoration and new construction.

In addition, you can apply cost-efficient, sustainable, and easy-to-use StoCast Brick or StoSignature Brick over many prepared surfaces, including StoTherm EIFS to achieve the classic brick look in a lightweight, energy-efficient wall cladding. StoTherm ci MVES is a complete EIFS wall cladding that allows for the use of adhered thin brick veneer.

Don’t hesitate to contact the Sto professionals today for the best EIFS brick solutions.

The post The Best Brick Solution for EIFS appeared first on Sto Corp..

Over the years, significant improvements have solidified it as an excellent choice for a durable, energy-efficiency cladding system:

• In the mid-1990s, the EIFS Industry Members Association (EIMA) and the International Conference of Building Officials (ICBO) mandated moisture resistance and retention improvements in EIFS.

In 2009 the International Building Code (IBC) recognized EIFS as an acceptable cladding product, requiring the application of a water-resistive barrier.

National Study Validates the Use of Drainage EIFS

Between 2005 and 2007, the Oak Ridge National Laboratory (ORNL) conducted a study comparing the energy efficiency, moisture intrusion, and temperature control between EIFS, brick, stucco, and cementitious fiberboard siding. It concluded that drainage EIFS is a far superior moisture and temperature control performance than brick, stucco, and cementitious fiberboard siding.

EIFS vs. Traditional Stucco

EIFS, commonly referred to as synthetic stucco,  and traditional stucco both provide fire resistance and a good sound barrier. However, while similar in looks, several characteristics change how the two stucco systems function. EIFS weighs 80 percent less than traditional stucco. In addition, EIFS offers more energy efficiency with an R-value between 4 and 5.6, compared to stucco, with an R-value of 0.2.

Traditional Stucco

The composition of traditional stucco includes a mixture of Portland cement, limestone powder, sand, and water. Builders install a base mesh to apply stucco to the building, then spread the stucco over it with a trowel, using a three-coat system. The stucco dries to a rock-hard finish for an affordable, long-lasting, attractive siding. 

EIFS

EIFS is applied in multiple layers over exterior sheathing, providing more insulation and moisture protection than traditional stucco. The typical components (layers) of EIFS include:

• A water-resistive barrier over the substrate prevents moisture from infiltrating the system. 
• A layer of expanded polystyrene (EPS) , extruded polystyrene (XPS), or mineral wool provides added insulation. 
• A layer of fiberglass mesh provides reinforcement and adds crack resistance. It will also protect against cracks and crumbling due to shifting foundations, thermal expansion, and freeze/thaw cycles. 
• A water-resistant base coat, embedded into the glass-fiber reinforcing mesh, applies on top of the insulation, and serves as a weather barrier.
• A finishing coat furnishes the color, texture, and protective nature of the structures’ exterior surfaces.

StoTherm® ci Wall Systems Drainable EIFS  

StoTherm® ci cladding systems combine continuous insulation (ci), air/moisture barrier, drainage, and many textured finishes to create a sustainable, high-performance wall cladding. The unique and durable system sustains maximum curb appeal and saves money through reduced energy bills. Sto offers several StoTherm ci Systems, including four StoTherm ci Hurricane Impact Systems.

• StoTherm® ci 

Lightweight StoTherm combines StoTherm® and the StoGuard® waterproof air barrier system, improving energy efficiency and protecting against moisture intrusion.

• StoTherm® ci XPS

High-performing and durable StoTherm® ci XPS incorporates high R-value extruded polystyrene insulation into the wall assembly and StoGuard® fluid-applied air and moisture barrier, producing water and airtight walls ensuring thermal efficiency and durability. 

• StoTherm ci MVES

StoTherm ci MVES (masonry veneer engineered system) a StoTherm ci system with masonry veneer, ceramic tile, natural stone, or manufactured stone used as the facade finish.  Meets applicable building code requirements.

• StoTherm® Mineral ci

The StoTherm® ci Mineral System incorporates non-combustible, mineral wool exterior insulation and continuous moisture and air barrier with Sto’s high-performance finishes to create an advanced high-performance cladding assembly. 

• StoTherm® ci HI-CM 180

Energy-efficient, high-performing, and hurricane-resistant StoTherm® ci HI-LM CMU 180 offer a CI wall cladding that combines StoGuard® waterproof air barrier and StoTherm® insulated cladding and drainage capabilities over concrete masonry unit substrates. In addition, StoTherm® ci HI-CM 180’s engineering satisfies the testing requirements for large and small missile impacts. 

• StoTherm® ci 1177 -SM

High-performing StoTherm® ci 1177-SM exterior wall cladding assemblies combine a seamless air and moisture barrier with advanced drainage capabilities over glass mat gypsum sheathing. The engineering of StoTherm® ci 1177-SM fulfills the testing requirements for Small Missile impacts. 

• StoTherm® ci 1177 -LM

High-performing StoTherm® ci 1177-LM exterior wall cladding assembly provides a seamless air and moisture barrier with CI, advanced drainage capabilities, and Sto Armor Mat XX Mesh for added reinforcement and impact resistance over glass mat gypsum sheathing. The engineering of StoTherm® ci 1177-LM achieves the testing requirements for small and large missile impact performance on 16-gauge steel studs with gypsum sheathing.

• StoTherm® ci HI-PLY

High-performing StoTherm® ci HI-PLY exterior wall cladding assembly integrates a seamless air and moisture barrier with CI and advanced drainage capabilities over CDX exterior plywood sheathing. The engineering of StoTherm® ci HI-Ply meets the testing requirements for small and large missile impacts.

Structural and Aesthetic Benefits of EIFS

EIFS’s structural benefits and aesthetic appeal make it an ideal product for new and retrofitted construction. Builders can apply these ‘synthetic stucco’ multilayered systems to wood, steel  or concrete substrates in any climate. Specific structural and design benefits include: 

1. Energy-efficient drainage EIFS meets the requirements of ASHRAE 90.1.
2. Fire-resistant EIFS pass the significant tests required by building codes for fire resistance (ASTM E119), ignitability (NFPA 268), intermediate multi-story fire test (NFPA 285), and full-scale multi-story, corner test (ANSI FM 4880). 
3. EIFS resists the spread of flames within the combustible core/component of panels from one story to the next. In addition, EIFS limits the lateral spreading of flames from the origin of the compartment fire to nearby spaces. 
4. Low-maintenance EIFS resists unhealthy and structurally damaging mold.
5. Aesthetically versatile, it can mimic brick, granite, stone, marble.

EIFS FAQs

Is EIFS the Same as Traditional Stucco?

No. While EIFS (synthetic stucco) and traditional stucco look similar, several significant differences change how the stucco systems function:

• Traditional stucco is installed directly to the substrate with a base lath attachment. EIFS stucco is applied in multiple layers over exterior sheathing, making it more expensive and less suitable for DIY than traditional stucco.
• EIFS weighs 80 percent less than traditional stucco. 
• EIFS offers more energy efficiency with an R-value between 4 and 5.6 than traditional stucco, with 0.2.
• EIFS’s layer of fiberglass mesh provides added resistance to cracking. It also helps protect against hurricane-strength winds, cracks, and crumbling due to shifting foundations, thermal expansion, and freeze/thaw cycles.

How Long Does EIFS Last?

If properly maintained, EIFS will last the life of the building. For example, StoTherm ci EIFS synthetic stucco systems applied in 1979 to U.S. buildings remain intact today. Proper maintenance includes:

• Periodic cleaning
• Repair of impact damage or punctures to restore surface integrity
• Inspection and maintenance of cladding abutting elements such as sealant and flashing

Can EIFS Be Repaired?

Yes. However, EIFS repairs often require a professional with EIFS experience to avoid further damage and potential water infiltration. You can refer to the StoTherm® EIFS Reference Guide for information on repairing EIFS or contact one of our experienced representatives at 1-800-221-2397. 

What Is the Best Paint for Recoating EIFS?

The best paint for EIFS should enhance your building’s character while providing superior protection against fading, mold, mildew, and crack bridging. The paint should also offer self-cleaning properties, vapor permeability, and low VOC. 

Fortunately, Sto’s architectural coatings provide all the features of a high-quality EIFS paint. We offer everything from acrylic-based permeable coatings to superhydrophobic coatings. Superhydrophobic coatings have self-cleaning properties and a biomimetic principle for fast drying after rain or dew. In addition, the coatings come in an assortment of textures and sheen, or we can tint them in an endless array of colors to fit all the needs of your exterior design. Click here to learn more about our high-performing coatings.

How Is EIFS Installed?

EIFS stucco is applied in multiple layers over the exterior sheathing. The typical components (layers) of an EIFS include:

• A water-resistive barrier covers the substrate to protect moisture from infiltrating the system. 
• A drainage plane located between the water-resistive barrier and the insulation board provides a drainage space (air gap) and weep openings. The drainage space allows moisture to drain between the drainage plane and the exterior cladding. The weep openings direct the draining moisture to the exterior outside the wall system.
• A polystyrene foam board or mineral wool provides added insulation.
• A layer of fiberglass mesh provides reinforcement and adds resistance to cracking. It will also protect against hurricane-strength winds, cracks, and crumbling due to shifting foundations, thermal expansion, and freeze/thaw cycles. 
• A water-resistant base coat, embedded into the  glass-fiber reinforcing mesh, applied on top of the insulation serves as a weather barrier.
• A finishing coat furnishes the color, texture, and protective nature of the structures’ exterior surfaces.

An experienced professional typically installs EIFSs due to their complexity. Click here for Sto’s StoTherm® ci Install Guide or contact one of our experienced representatives at 1-800-221-2397.

Is EIFS Fire-Resistant?

All EIFS manufacturers in the Industry Members Association (EIMA) have passed ignitability, fire resistance, intermediate multi-story, and flame spread tests, meeting the standards of each test. EIFS and drainage EIFS generally utilize foam plastic as the insulation, making them combustible assemblies. Therefore, according to Chapter 26 of the 2021 IBC, they must test for all building heights. Furthermore, the IBC also mandates the testing of exterior walls to prove compliance with the acceptance criteria of NFPA 285 (Section 2603.5.5). However, Sto also offers StoTherm ci Mineral EIFS with non-combustible Mineral Wool insulation.

Click here for more on NFPA 285 testing of Sto wall systems, or contact one of our experienced representatives at 1-800-221-2397.

What Is an Exterior Insulation and Finish System?

EIFSs apply in multiple layers over exterior sheathing, to create energy-efficient, fire-resistant, low-maintenance, beautiful, and versatile exterior cladding. Over the years, significant improvements have solidified EIFSs as a superior choice for a durable, energy-efficiency cladding system.

Click here to learn more about Sto’s StoTherm® ci systems, drainable EIFS, or contact one of our experienced representatives at 1-800-221-2397.

Is EIFS in Commercial Building Codes?

Yes. The 2021 IBC (Section 1407) outlines the requirements for EIFS construction. For more information on StoTherm® ci code compliance, click here. 

Do Insurance Companies Cover EIFS Projects?

Yes. Fortunately, the EIFS Industry Members Association (EIMA) website offers updates, education, and resources to help EIFS applicators obtain affordable EIFS insurance with a list of knowledgeable EIFS insurance brokers.

What EIFS Finishes Do You Offer?

Sto Textured Finishes provide architects, buildings, and homeowners complete design freedom with an extensive selection of finishes in many textures and color options, enhancing your design and harmonizing with the surrounding environment. We manufacture durable Sto finishes to the highest quality standards, to resist water and dirt to protect your building or home while providing outstanding curb appeal.

Click here for more information on Sto’s aesthetics.

What to Look For in a High-Quality EIFS System

The design of a long-lasting EIFS system should allow straightforward application, and limit long-term problems due to improper installation. A high-performing EIFS system should also provide impact and condensation resistance, all features offered by StoTherm ci EIFSSystems.

• Impact Resistance: Designing EIFSs with a high-impact mesh will substantially improve their impact resistance.
• Condensation Resistance: EIFS insulation thickness should stop the interior air from reaching the dew point (the temperature that water vapor turns to water), minimizing condensation within the wall system.
• Quality Sealants: Preventing water intrusion to the wall system must include proper installation of quality sealants. 

Why Choose StoTherm ci EIFS Systems? 

StoTherm ci Systems check all the boxes for a high-quality synthetic stucco cladding product – excellent moisture management, low maintenance, durability, the energy efficiency of StoGuard® air and moisture barrier system, and comprehensive design options.

StoTherm ci Systems advanced integrated wall systems combine protective and aesthetic components into superior wall cladding. The system’s high-performance features include:

• StoGuard® fluid-applied air and moisture barrier: Ideal for all types of construction, StoGuard® ‘s fully-adhered seamless monolithic exterior wall air and moisture barrier protects against moisture infiltration and unwanted air movement. You can apply StoGuard® with a roller or airless spray, which speeds up the application and simplifies integration with other wall assembly components. 
• StoTherm® ci cladding systems:  StoTherm® ci combines CI, air/moisture barrier, drainage, and numerous textured finishes to produce a sustainable, high-performance wall cladding. The durable and eye-catching system maintains maximum curb appeal and saves money through lower energy bills. Sto offers eight StoTherm ci Systems, including four StoTherm ci Hurricane Impact Systems.
• Sto Textured Finishes: Sto Textured Finishes provides architects, builders, and homeowners with complete design freedom with an extensive selection of finishes in many textures and color options, to enhance your design and harmonize with the surrounding environment. We manufacture durable Sto finishes to the highest quality standards to resist water and dirt, and protect your building or home while providing outstanding curb appeal.

Don’t hesitate to reach out to one of our experienced representatives today to learn more about EIFS, or synthetic stucco.

The post Exterior Insulation Finishing Systems (EIFS), Commonly Known as Synthetic Stucco Ultimate Guide appeared first on Sto Corp..

The design must ensure the building cladding systems’ durability, energy efficiency, and sustainability. The cladding’s aesthetic appeal for high-rise buildings or modest homes provides the structure’s first impression and influences the feel and look of the surrounding environment.

What Is a Cladding System?

The building cladding refers to all the components attached to the building’s primary structure (parts that keep a structure standing), and form the non-structural, external surfaces. Often, cladding attaches to the structural frame of the building as prefabricated panels.

A high-performing cladding system provides much more than just a building’s exterior facade and aesthetics. Quality cladding systems:

• Transfer wind and impact loads to the structural framework
• Protect the structures from external elements (rain, wind, snow, ice)
• Provide thermal insulation to create an airtight building envelope, to control the inside environment
• Provide security and privacy, and prevent the transmission of sound
• Limit the spread of fire
• Provide openings for daylight, ventilation, and access

High-quality, properly-installed, and well-designed cladding materials for buildings minimize air leakage, maximize thermal performance, and optimize natural daylighting. These features lessen the need for mechanical and electrical service, and contribute towards a sustainable, energy-efficient, safe, and durable building.

The Four D’s of High-Performance Cladding Systems

High-performance cladding systems must provide effective deflection, drainage, drying, and durability:

1. Deflection refers to an exterior building’s cladding’s ability to deflect rain, ice, and snow that hits the outer wall surface. Designers can assist the cladding’s water deflection with overhangs and gutters. 
2. Drainage refers to cladding materials for buildings’ capacity to permit water that finds its way behind the outer surface to drain. Architects and builders can handle this with an application of a water-resistant barrier over the sheathing and a drainage gap between the sheathing and the cladding. However, stucco cladding, which can’t deal with large volumes of water, requires enhanced drainage that uses a drainage mat to increase the space between the WRB and cement membrane. The space allows more accessible water flow down and within the cladding.
3. Drying refers to a cladding system’s permeability or ability to allow ventilation within the system to encourage drying. Building codes typically require vapor-permeable exterior cladding, to allow moisture or condensation to pass through it as a vapor when warmed by the sun. Including open space at the base and top of the wall cladding will allow airflow and additional drying. 
4. The durability of a cladding refers to the system and its components’ ability to withstand continued and repeated exposure to ultraviolet rays, thermal expansion and contraction, and wetting-and-drying cycles. Durable cladding systems will help prevent leaks and protect the building envelope.

However, other vital features you should consider when selecting a high-performance cladding system include:

• Sufficient airtightness, continuous insulation, and control of thermal movement
• Fire resistance
• Low maintenance
• Ease of installation

5 Sto High-Performance Cladding Systems for Buildings

Sto offers various easy-to-install, high-performance cladding systems, that all meet the requirements for water deflection and drainage, the ability to dry out, airtightness, fire resistance, low maintenance, and the durability to last the lifetime of the building.

Our systems integrate all the wall components into one tested, code compliant system: air and moisture barrier, continuous thermal insulation, and numerous aesthetic facade surface options to accommodate all your design needs. You can combine multiple facades in a single system without transitions and product compatibility design challenges. 

Our tested systems also ensure that all components work together as mandated by today’s building codes. We cover all the features of our wall systems under a single system warranty.

1. StoVentec® Rainscreen Systems

Rainscreen claddings protect against the effects of moisture (especially vital with water-absorbing claddings) by providing a ventilation gap between the siding and air and moisture barrier. The small gap (as little as ½-inch) allows for proper drainage and drying.

StoVentec® Systems offer a complete, fully-tested, and code-approved high-performance ventilated Rainscreen® system that includes an air and moisture barrier, non combustible mineral wool insulation, an installer-friendly, adjustable sub-framing system, and our impressive StoVentec® Rainscreen® cladding. 

In the U.S., StoVentec® ventilated rainscreen cladding systems come in several finishes, in order to provide designers with a range of aesthetic choices to create distinctive building facades with highly engineered performance characteristics.

StoVentec® Masonry Veneer Facades

StoVentec® masonry veneer facades offer a drained and back-ventilated rainscreen wall system with aesthetic options of thin brick, masonry, and tile.

StoVentec® Glass

StoVentec® Glass provides an open joint, drained, and back-ventilated rainscreen wall system with an opaque glass facade, offering aesthetic choices of back-colored glass, frosted glass, and custom printed glass.

StoVentec® Render

StoVentec® Render is a drained and back-ventilated rainscreen wall system, offering aesthetic opinions of Sto textured finish, Stolit Lotusan self-cleaning textured finish, and StoCast, Sto’s prefabricated resin cast shapes.

2. StoPanel Systems Prefabricated Exterior Wall Panels

Sto’s prefabrication solution, Sto Panel Technology®, features finished exterior wall panels. The StoPanel® system panels consist of cold-formed metal framing and other applicable components, including continuous insulation (ci), glass mat sheathing, air and moisture barrier, sub-framing, and facade aesthetic.

Prefabrication provides several significant benefits:

• ݈Reduces delivery time and labor needs
• Helps to stay on budget
• Boost quality control and assurance
• Improves job site safety
• Reduces change orders
• Lessens construction wastes

StoPanel® Classic NExT ci

StoPanel® Classic NExT ci prefabricated wall panel includes steel framing, gypsum sheathing, and StoTherm® ci facade

StoPanel MVES

StoPanel® MVES prefabricated wall panel includes steel framing, gypsum sheathing, and Adhered Masonry Veneer (AMV) – thin brick, natural stone, ceramic tile, or cultured stone.. 

StoPanel® Mineral ci

StoPanel® Mineral ci prefabricated wall panels include steel framing, gypsum sheathing, and StoTherm® Mineral ci facade. 

StoPanel® Dri-Design®

StoPanel® Dri-Design® prefabricated wall panels include steel framing, gypsum sheathing, and Dri-Design® metal facade.

StoPanel® Swisspearl®

StoPanel® Swisspearl® prefabricated wall panels include steel framing, gypsum sheathing, and Swisspearl fiber cement facade.

StoPanel® Impact ci®

StoPanel® Impact ci® prefabricated wall panels include steel framing, gypsum sheathing, and StoTherm ci system, designed specifically for large and small missile impact performance.

StoPanel® 3DP Powered by Branch Technology

Working together, Sto Panel Technology® and Branch Technology created an exceptional 3-dimensional design for exterior walls. The prefabricated, panelized wall integrates the building envelope layers into a customizable 3D printed lightweight, robust, and easy-to-install composite shape. Branch’s unique Cellular Fabrication (C-Fab®) 3D printing process allows you to create a highly functional and unique architectural facade panel in virtually any shape or form.

StoPanel® XPS

StoPanel® XPS prefabricated wall panels include steel framing, gypsum sheathing, and StoTherm® ci facade that includes Extruded Polystyrene Foam Insulation 

StoPanel® Brick

StoPanel® Brick prefabricated wall panels include steel framing, gypsum sheathing, thin masonry veneers, or thin brick.

StoPanel® Precast

StoPanel® Precast prefabricated wall panel includes steel framing, gypsum sheathing, and a variety of integral decorative & protective finish options to replicate precast concrete. 

StoPanel® Metal

StoPanel® Metal prefabricated wall panels include steel framing, gypsum sheathing, and metal facade

StoPanel® Backup

StoPanel® Backup prefabricated wall panels include steel framing, gypsum sheathing, and air/moisture barrier. Builders apply facade on-site.

3. Drainable EIFS (Exterior Insulation Finishing System) – StoTherm® ci Wall Systems

StoTherm® ci cladding systems combine continuous insulation (ci), air/moisture barrier, drainage, and numerous aesthetic finish options to create a high-performance, sustainable wall cladding. The eye-catching and durable system maintains maximum curb appeal, and saves money through lower energy bills.

StoTherm ci MVES

StoTherm® ci MVES (masonry veneer engineered system) with masonry veneer in natural stone, ceramic tile, or manufactured stone which conforms to applicable building code requirements.

StoTherm® Mineral ci

The StoTherm® Mineral ci system incorporates non-combustible, mineral wool insulation and continuous air and moisture barrier with Sto’s high-performance finishes to produce an advanced high-performance wall cladding assembly. 

StoTherm® ci XPS

Durable, high-performance StoTherm® ci XPS incorporates high R-value extruded polystyrene insulation into the wall system and StoGuard® fluid-applied air and moisture barrier, creating an air and watertight wall ensuring thermal efficiency and excellent durability. 

StoTherm® ci

StoTherm® ci combines StoTherm® and the StoGuard® waterproof air barrier system for enhanced energy efficiency and protection against moisture intrusion. 

StoTherm® ci HI-LM CMU 180

High-performing, energy-efficient, and hurricane-resistant StoTherm® ci HI-LM CMU 180 provides a continuous insulation wall cladding that integrates StoGuard® waterproof air barrier and StoTherm® insulated cladding and drainage capabilities over concrete masonry unit substrates. The StoTherm® ci HI-LM CMU 180’s engineering meetsthe stringent Miami-Dade County, Florida NOA criteria for large and small missile impact resistance, air and water infiltration, and wind load resistance.

StoTherm® ci 1177-LM

High-performance StoTherm® ci 1177-LM exterior wall cladding system integrates a seamless air and moisture barrier with continuous insulation, advanced drainage capabilities, and Sto® Armor Mat XX Mesh for additional reinforcement and impact resistance over glass mat gypsum sheathing. The engineering of StoTherm® ci 1177-LM meets the stringent Miami-Dade County, Florida NOA testing criteria for large and small missile impact resistance, performance on 16-gauge steel studs with gypsum sheathing.

StoTherm® ci 1177-SM

High-performance StoTherm® ci 1177-SM exterior wall cladding system integrates a seamless air and moisture barrier with continuous insulation and advanced drainage capabilities over glass mat gypsum sheathing. The engineering of StoTherm® ci 1177-SM meets the stringent Miami-Dade County, Florida NOA criteria for small missile impact resistance, air and water infiltration, and wind load resistance.. 

StoTherm® ci HI-PLY

High-performance StoTherm® ci HI-PLY exterior wall cladding system integrates a seamless air and moisture barrier with continuous insulation and advanced drainage capabilities over CDX exterior plywood sheathing. The engineering of StoTherm® ci HI-Ply meets the the stringent Miami-Dade County, Florida NOA testing criteria for large and small missile impact resistance, air and water infiltration, and wind load resistance.

4. StoPowerwall® Stucco Systems

StoPowerwall® Stucco Systems provide fully-tested stucco systems with superior moisture management and comprehensive design options, ensuring low maintenance and durable claddings with all of the protection and energy efficiency of StoGuard®.

StoPowerwall® Stucco Systems combines protective and aesthetic elements into a superior wall cladding, including StoGuard® fluid-applied moisture and air barrier, StoPowerwall® Stucco, and Sto textured finishes and coatings that keep out moisture while furnishing many design options. Sto systems include the Sto DrainScreen drainage mat for added moisture protection and optional Crack Defense, an additional fortification layer for crack prevention. 

StoPowerwall® DrainScreen MVES

The StoPowerwall® DrainScreen MVES stucco wall system with thin brick, masonry, tile, or cultured stone veneer, includes the moisture protection of StoGuard® air and moisture barrier and Sto DrainScreen to reduce the risk of water accumulation. 

StoPowerwall® ci

StoPowerwall® ci energy-efficient stucco wall systems include continuous insulation of outbound extruded polystyrene (EPS).

StoPowerwall® DrainScreen

The StoPowerwall® DrainScreen Stucco wall assembly combines the durability and strength of traditional stucco with StoGuard moisture protection,Sto DrainScreen and Sto high-performance finishes; however, it does not include insulation. 

StoPowerwall® ExtraSeal®

The StoPowerwall® ExtraSeal® stucco wall system applies directly to CMU with Sto ExtraSeal air and moisture protection.

5. StoQuik® Silver Systems Cement Board Stucco

StoQuik® Silver Systems combines the strength of a cement board substrate with moisture protection of StoGuard air and moisture barrier, draining and drying of a drainage mat, and the versatile performance and design options of Sto’s textured finishes – without the moisture exposures, complicated installation, and labor steps of traditional stucco. 

StoQuik® Silver DrainScreen™MVES

The high-impact, weather-resistant StoQuik® Silver DrainScreen™ MVES cement board stucco system provides superior moisture protection with thin brick, natural stone, ceramic tile, or manufactured stone veneer for exterior vertical above-grade walls in residential, low-rise commercial, and institutional construction. 

StoQuik® Silver DrainScreen™

StoQuik® Silver DrainScreen™ is a durable, cement board stucco system that provides superior energy efficiency and improved water drainage.

Why Choose Sto’s High-Performance Cladding Systems?

Sto’s cladding systems have all the vital features that a high-performance system needs: moisture protection by deflecting, draining, and evaporating moisture on the outside and inside of the wall system, long-lasting durability, and energy efficiency.

Simple to install, time-saving Sto systems combine all the wall components into one unit: continuous insulation, air and moisture barrier, sub-framing system, and many aesthetic facade surface options to accommodate all your designs needs.

Learn more about engineered building enclosures today by downloading this comprehensive guide.

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Considerations for Building a High-Performance Architectural Facades

A building’s facade architecture design impacts the building’s energy efficiency, durability, and the occupant’s experience. The facade you choose will affect your building costs, long-term maintenance, and utility expenses. 

We offer five considerations when building a high-performance architecture facade:

Energy Efficiency and Sustainable Facades

The facade’s design and how much you implement active and passive strategies will dramatically impact the energy use of your building. Architects can significantly lessen energy costs by utilizing sustainable facade strategies and materials, like those offered by Sto Corp. 

We commit to providing sustainable, safe, and healthy products and services, emphasizing long-term protection for our communities and planet.

Embodied Carbon

Choosing building products that reduce embodied and emitted carbon can reduce your building’s embodied energy by 80 percent. Fortunately, the engineering of Sto’s innovative wall systems reduces carbon emission through durability, energy efficiency, recycling, and the retrofitting of existing building stock as an aesthetic, economical, and energy-saving sustainable alternative to new facade construction.

Durability

A durable facade will maintain its integrity and aesthetics over time, by resisting wind, impact, fading, rain, snow, pollution, ice, hail, etc. A damaged or deteriorated facade can allow water to penetrate, which can lead to severe structural damage.

Acoustic Comfort

Background noise can significantly deteriorate one’s concentration ability and impact a business’s productivity. Facades that contribute to a building’s acoustic comfort by reducing exterior noise will improve the building’s work environment.

Impact on Daylight and Views

The windows of a building’s facade should add to the building’s beauty and also provide daylight and natural ventilation to the occupants. Workers with window views perform 10 to 25 percent better on memory and mental health tests and 6 to 12 percent quicker than employees in windowless rooms.

9 Unique Facade Construction Design Ideas

Interesting building facades represent an architect’s creative vision to give a building life, character, and personality. Sto Corp offers many products and systems to create sustainable, durable, inspiring, and thought-provoking wall envelope solutions with beautiful commercial building facade design.

1. Greenhouse Dispensary – Chicago

StoTherm® ci and computer modeling tools allowed architects to create this “of its time” design for the Greenhouse dispensary. The unique facade showcases fluid lines, giving the illusion of motion with flowing waves rising to meet at a center point, and framing a two-story wall of windows. An application of Stolit® Milano finish adds shine to the completed building.

StoTherm® ci

StoTherm® ci Wall Systems combine continuous insulation, drainage, moisture, and air barrier, to ensure a durable and energy-efficient wall system, to save money on utilities, repairs, and maintenance. In addition, sustainable StoTherm® ci Wall Systems improve air quality and indoor comfort. StoTherm® offers a wide variety of textured finish options to meet your aesthetic and architectural needs. 

Stolit® Milano 

Stolit® Milano is an easy-to-apply, ultra-smooth exterior or interior decorative and protective wall finish. In two to three coats, Stolit® Milano can achieve many decorative looks, from an industrial feel of ultra-smooth metal panels to a fine grit texture. Breathable Stolit® Milano resists structurally damaging and unhealthy mold. It can also provide additional abrasion protection when applied as a topcoat.

2. 207 W. 75th Street, New York City’s Upper West Side

The original elegant porcelain tile facade of this seven-story, seven-unit, residential building was replaced. Large voids had formed due to improper installation, allowing water to seep into the structure. The architect and builder agreed that applying a new facade, using StoTherm® ci with Stolit® Milano, provided the best solution for simulating the ultra-smooth finish of the porcelain tile, and could mimic the grout lines with precisely drawn trowel marks. Installation of the facade:

• First, they applied a layer of Sto Gold Coat®, fluid-applied air and moisture barrier over the original substrate and mortar. Sto designed vapor-permeable, fluid-applied Sto Gold Coat® for application under ci wall systems. 
• Next, a layer of StoTherm ci EPS rigid foam, intended for use in Sto ci Wall Systems, provided a smooth surface to apply the final finish. It also boosts the building’s energy efficiency.
• They applied the topcoat of Stolit Milano with a porcelain finish.
• To match the appearance of the original porcelain tile, they used a trowel to score the joints, in order to replicate the look of grout joints.

3. City Hyde Park, Chicago, Illinois

Architects designed the facade of the lower two-story retail portions of this Chicago residential midrise tower with a sophisticated tile mosaic that wraps around the building, interpreting the four seasons. Sto Panel Technology, Sto’s prefabricated exterior finished wall panels, proved to be an excellent choice to achieve the design vision of the project. The complex job required 20,660 ft² of StoPanel® Backup with mosaic tile, StoPanel® Classic ci, and StoPanel Metal ci. The design also included punched windows to give the tower facade an appearance of ribbon windows.

StoPanel® Classic ci

Lightweight and sustainable StoPanel® Classic ci provides an energy-efficient and durable prefabricated exterior wall panel with continuous exterior insulation, StoGuard waterproof air barrier, and multiple options for metal wall coverings. In addition, StoPanel® Metal ci provides compliance for a continuous air barrier and fire- and wind resistance. LEED eligible StoPanel® Classic ci complies with Energy Standards (ASHRAE 90.1) and Green Building Standards (ASHRAE 189.1).

In addition, versatile Sto finishes permit almost any design aesthetic on lightweight prefabricated StoPanel® Classic ci.

StoPanel® Backup

Energy-efficient and lightweight StoPanel Backup is a prefabricated exterior wall panel with an exterior continuous air and moisture barrier – it is the backbone of StoPanel Technology. StoPanel Backup consists of cold-formed steel, glass-mat-faced gypsum sheathing, and StoGuard air and moisture barrier.

StoGuard Air and Moisture Barrier

Fast and easy to install StoGuard®’s fluid-applied air and moisture barrier system forms a fully-adhered seamless monolithic moisture and air barrier on the exterior wall, to protect against air and moisture infiltration.

4. Cherese Mari Laulhere Children’s Village at Miller Children’s & Women’s Hospital

The architects designed the exterior envelope of this children’s hospital to reflect the theme of light, color, and energy. A few challenges included accommodating California seismic requirements, precise alignment of Dri-Design metal panel joints with EIFS reveals, and extensive wall penetrations. At the recommendation of a commercial wall systems contractor (Nevell Group), they decided on prefabricating the exterior walls with StoPanel Classic NExT ci and StoPanel Dri-Design. The panel’s design meets seismic needs, addresses visual alignments, delivers the textures and intense colors needed in the design theme and allowed for the project to meet the targeted open time. 

Lightweight, prefabricated StoPanel Classic NExT ci offers an energy-efficient and durable with continuous insulation, StoGuard waterproof air barrier, and the patented “Sto Wedge,” to provide drainage. In addition, StoPanel Classic NExT ci allows for a wide variety of Sto’s premium standard and specialty textured finishes.

Easy to install, the StoPanel Dri-Design® system provides a continuous air and moisture barrier, exterior insulation, and a fully customizable, endless design option.

5. Apex Entertainment Facility

The Apex project had two significant challenges: a quick timeline and environmental regulations.

While workers framed the Apex project, Atlanta Prefab manufactured off site 50,000 ft² of StoPanel® Classic ci panels for the Apex Entertainment Facility, allowing them to enclose the building in only six weeks. Furthermore, manufacturing of the panels offsite reduced the risk of airborne construction contaminants, which could potentially affect the adjacent wetlands.

6. Conductive Education Centre

To make young students feel at home when learning at school, RPM Architects designed the Conductive Education Centre with eye-catching, colorful interesting facades that beautifully incorporate a StoVentec® Glass Rainscreen® system. 

​​StoVentec Glass Rainscreen Cladding Systems

StoVentec® Glass Rainscreen® systems create facades that combine performance and durability with the beauty and allure of glass. They offer design flexibility, accommodating endless, and unique facades, with many textures, shapes, colors, and material types. In addition, easy-to-install glass rainscreen breathable systems provide thermally efficient insulation that lowers the cost of heating and air-conditioning, limits damaging condensation, and reduces heating and air-conditioning costs. At the same time, its structural frame enhances safety against fire and wind loads.

7. MP09 Black Panther, Graz, Austria

GSarchitects designed the mixed-use building with energy-efficient StoVentec® Glass: black glass panels that reflect their environment. As they rest on its bases with the spectacular protruding bow, it gives the appearance of a panther ready to pounce – giving it its name, Black Panther.

8. Palma Aquarium, Palma de Mallorca, Spain

Built-in 2007, the bent facade of the Palma Aquarium gives the impression of a living organism. Architects accomplished this with StoVentec® Glass Rainscreen®, which allowed for custom sizes of the sweeping design. In addition, the non-visible StoVentro™ Agraffe profile permitted the attachment of glass-colored panels to the rear side, to create a visual flow of color and curve.

9. Reston Town Center, Reston, Virginia USA

Duda Paine Architects chose StoVentec® Glass to create a bold, reflective, geometric ceiling to connect the towers of Reston Town Center. StoVentec® allowed contractors to use a single system from one manufacturer to construct a geometric structure on an exterior ceiling. Maintaining the flatness of the prisms required nearly 3000 ft² of StoVentec® Glass Panels attached to a marine-grade plywood substrate. One-hundred thirty-two glass panels of different sizes and finishes make up the three diamond-shaped prisms of the bridge.

The StoVentec components used for the Reston Town Center included the StoVentec Glass panel assembly, StoVentro Sub-construction, and StoTherm ci.

Choose Sto Products to Create Interesting Facade Architecture Design

Sto can help you achieve unique, interesting, and attainable architectural facades with our wide range of aesthetic possibilities and building envelope solutions. Our products also promote sustainability, durability, safety, and enhanced indoor environmental quality. 

Don’t hesitate to contact our facade professionals or explore more examples of unique architectural facades amongst our inspirational case studies!

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Sto Corp. is proud to be the manufacturing partner on six of the projects that received accolades for exemplary work showcasing exterior walls that are efficient, aesthetically flexible, and incredibly durable.

A digital recording of the awards ceremony can be found on EIMA’s YouTube channel.

2020 Hero of the Year Award
Long Beach Memorial Pediatric M.O.B.

Location:
2701 Atlantic Ave.
Long Beach, CA

Project Team:
Manufacturer: Sto Corp. / Sto Panel Technology
Contractor: Nevell Group, Inc. (A Sto Panel Technology Affiliate)
Distributor: FBM
Owner: Long Beach Medical Center
GC: Turner Construction
Architect: C-A Architects

Why this is a HERO hidden in plain sight:

The design team’s flexibility and openness for prefabrication made this project a great opportunity for EIFS. Panelizing the exterior cut the project skin schedule by 3 months and resulted in a 19-day dry in rather than the expected 120-day duration. Seven unique bright colors were used on the facade, which is very eye-catching. The juxtaposition of the shapes combined with the contrasting colors make this project a testament to the strength of EIFS.

Hero Award in the category of “Other”
Greenhouse

Location:
1000 Skokie Blvd
Skokie, IL

Project Team:
Manufacturer: Sto Corp.
Distributor: L&W Elk Grove, IL
Owner: Curaleaf
GC: Pacific Construction
Architect: Camburas & Theodore, Ltd

Why this is a HERO hidden in plain sight:

This project was originally built in 1956, and after several additions, needed an updated, more contemporary look. The fluid lines in the design give the illusion of motion, with flowing waves that converge at a center point, framing a two-story wall of windows. The use of EIFS as the cladding material, along with sophisticated computer-modeling tools, made execution of the design’s organic shapes possible. This project really showcases the endless design possibilities of EIFS.

Award of Merit in the category of “Mixed-use”
Peace Raleigh Apartments

Location:
417 West Peace St.
Raleigh, NC

Project Team:
Manufacturer: Sto Corp. 
Contractor: Premier Stucco (NC)
Distributor: Guaranteed Supply
GC: Clancy & Theys
Architect: Cline Design Associates

Why this is a HERO hidden in plain sight:

This project, with multiple types of claddings that blend well with the surrounding built environment, is an excellent example of using EIFS alongside metal panel and brick to obtain a modern, eclectic look.

Award of Merit in the category of “Residential”
Houston House

Location:
298 East 2nd Street
New York, NY

Project Team:
Manufacturer: Sto Corp.
Contractor: Imperiex Construction Inc
Distributor: Sto Eastern
Owner: Matthew Lee
Architect: Jeff Cole Architects

Why this is a HERO hidden in plain sight:

This 8-story building is in New York City’s trendy East Village neighborhood. The project team addressed both the practical and aesthetic issues it faced because of its location. With the use of EIFS as an exterior cladding, the project has a design evoking the aesthetic of metal panels that is stylish enough for its East Village residents, while at the same time addressing the traffic noise, cold winters and brutal summers of New York City.

Award of Merit in the category of “Residential”
Imperial

Location:
123-30 83rd Avenue
Kew Gardens, NY

Project Team:
Manufacturer: Sto Corp.
Contractor: Elite Wall Systems
Distributor: Sto of N.J. Inc.
Owner/Developer Realty: Operations Group
General Contractor: AWR Group Inc.
Architect: Chris Benedict

Why this is a HERO hidden in plain sight:

This renovation project is a complete exterior re-clad of a 7-story apartment building in Queens, New York. By covering the entire brick exterior with EIFS, the owner found a solution to the recurring maintenance issue of masonry repair. The project has a fresh look, and uses different sizes of EPS board to add depth and dimension to the once flat facade. This project really showcases the versatility of EIFS!

Honorable Mention in the category of “High-rise”
Gentry Buckhead Village

Location:
3172 Roswell Rd
Atlanta, GA

Project Team:
Manufacturer: Sto Corp.
Contractor: Johnson & Sons Plastering
Distributor: Capitol Materials Atlanta
Owner: LMC
GC: HOAR Construction
Architect: Preston Partnership

Why this is a HERO hidden in plain sight:

This is an excellent example of utilizing the energy efficient, high performance qualities of EIFS, and the unique aesthetics to suit the design intent of a project. The 21-story multi-family and mixed-use property sits in a densely populated area of Atlanta; a very busy and high traffic zone with minimal lay-down area.

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