Let’s discuss this.

A Brief Evolution of the Rainscreen

In the article, Hohenstern traces the evolution of the rainscreen. The idea dates back to the 12th century, when the “open-jointed barn technique” first appeared in Norway. The name originates from its use, primarily in the construction of barns. It involved timber cladding adjoined to stone walls and incorporated closed joints on the sides and open joints at the top and bottom to allow rain to drain and evaporate.

The concept evolved through the years into a more modern version, as seen in the 1952 Alcoa Building in Pittsburgh, an early example of a structure with a “pressure-moderated” ventilated outer wall.

According to Hohenstern, by 1971, the American Architectural Manufacturer’s Association (AAMA) published the first formal guide for pressure-equalizing designs. It wasn’t long before the rainscreen we know today became widely used throughout Europe and the U.S.

This evolution transitioned the conversation from one of materials to one of systems— from whether a material can handle rain to how a system manages air and water.

What a Modern Rainscreen Actually Manages

Photography by Brian Phelps

Contrary to what it may sound like, the primary water barrier on a building is the air and water resistive barrier (AWRB), not the rainscreen. The rainscreen is actually designed to limit the amount of water that can come into contact with the WRB.

The rainscreen’s job is to resist five forces:

• Kinetic Energy: Rain drives raindrops through gaps and joints in the cladding.
• Gravity: Water hitting the facade will move downward and into unprotected horizontal openings or defects in the assembly.
• Capillary Action: Surface tension can “suck” the moisture into a wall if water encounters a tiny crack or narrow space between materials.
• Surface Tension: Similar to capillary action, water tends to cling to the underside of horizontal surfaces’ it can then crawl across the bottom of a panel and into the interior.
• Pressure Gradients: When air pressure is higher outside the building than inside the wall cavity, it creates a suction effect that pulls moisture through small breaches.

Because a rainscreen is required to protect against such varied issues, not one material can do everything on its own.

The Five Components That Have to Work in Concert

Five forces require five components, working in concert to get the job done.

• Outer Cladding: Aside from the aesthetic factor, the cladding’s job is to take the brunt of the weather. In a system, it is designed with specific joint widths or breathability to allow the internal cavity to function.
• The Ventilated Cavity: This equalizes air pressure between the outside and the interior cavity to neutralize the force (pressure gradients) that sucks moisture in. The air gap in the ventilated cavity also dries out any moisture that gets through.
• The Air and Water Resistive Barrier: The AWRB ensures that the building remains dry and airtight. In an intelligent system, the AWRB is tested together with the remaining components to make sure they are compatible.
• Continuous Exterior Insulation: Continuous Insulation (CI) keeps the structural wall at a consistent temperature, moving the dew point to the exterior. This prevents interstitial condensation, which can be the hidden killer of many building envelopes.
• Specialized Venting and Flashing: These profiles at the top and bottom of the wall allow enough air in to ventilate the cavity while acting as a barrier against pests and rain.

Because every component has its role, if one fails, the whole system fails. Choosing the right system-based solution ensures the best results.

System Intelligence in Practice—The Sto Approach

Photography by Brian Phelps

Sto provides a system-based solution that takes the guesswork and risks of a “Frankenstein” assembly out of the equation.

• StoVentec^® Rainscreen Systems:
  • These are engineered as a complete rainscreen system, designed to perform across every layer of the wall.
  • With a thermally broken sub-construction and adjustable design, they solve both the energy problem and the challenge of installation with a single solution.
• StoGuard^® and StoShield^® SA:
  • Fluid-applied or self-adhered AWRBs are directly applied onto the building’s substrate.
  •  This single, seamless layer and offering of detail components integrate with the cladding to work as a system.
• Mineral Wool Continuous Insulation:
  • A layer of mineral wool sits on the outside of the building’s studs.
  • Putting the insulation on the outside wraps the building in a thermal “blanket” engineered to work with the rainscreen layers.
• StoVentec^® Facade Finishes:
  • Sto offers a robust selection of fully tested options, including glass, render, fiber cement, and masonry veneer.
  • They are designed to work seamlessly with the underlying cavity and sub-construction while delivering complete design freedom.

Using Sto’s solutions provides the benefits and peace of mind that come with one manufacturer, one warranty, and one accountable system.

How to Evaluate a Rainscreen System

When choosing a rainscreen system, what should you look for?

Does the Manufacturer Offer a Complete System?

This mitigates having to choose between different sources for different elements. It simplifies installation and jobsite coordination, minimizes risks of incompatibility, and streamlines warranty concerns.

Has the Assembly Been Tested Under Aama 509 (The North American Standard for Drained-and-Back-Ventilated Rainscreens)?

This ensures the entire assembly manages moisture and air pressure as intended.

Is On-Site Technical Support Available with Thermal Modeling?

Experts who provide thermal modeling and on-site technical support can help calibrate a system to the actual climate conditions to ensure everything works as intended, preventing issues in the future and costly fixes down the line.

How Wide Is the Design Language—Colors, Textures, Claddings?

The system should support many different colors, textures, and claddings without needing to change the underlying engineering. More possibilities make meeting aesthetic goals today and implementing updates in the future easier.

Does the System Support Sustainability, Recycled Content, and Low-Embodied Energy?

Environmental concerns and code compliance should be an important consideration. Recycled materials, sustainable components, and energy- efficient solutions are key to building with conscience.

Intelligence Is the Differentiator

From the 12th century to the 21st, from barns to assemblies, rainscreens have evolved with time to improve and adapt to modern requirements. System intelligence is the natural endpoint to that evolution. Choosing integrated systems that get the job done—as more than the sum of their parts—reduces risk, simplifies coordination, and protects long-term performance.

Explore the StoVentec rainscreen family by clicking here. You can also reach out to Sto’s technical team for project-specific assistance online or by calling 800-221-2397.

The post System Intelligence in Rainscreens: Why Modern Cladding Performance Comes From the Whole, Not the Pieces appeared first on Sto Corp..

Traditional materials often fall short in these conditions, which is why sustainable urban resilience requires an integrated, system-based approach.

Sustainability Challenges Unique to Urban Environments

Cities present unique challenges that architects must address when making design choices. Sto Corp.’s system-based solutions are engineered with these challenges in mind, balancing sustainability goals with cost and constructability by using an integrated system approach.

Improving Envelope Performance

Surface temperature is more than just a heat issue. Thermal stress causes the envelope to expand and contract excessively, which means more maintenance and less durability. Facade materials have a direct impact on surface temperature.

• Continuous Insulation (CI): Systems that utilize StoTherm^® ci, StoVentec^® Rainscreen^® Systems or prefabricated finished wall panels like StoPanel^® systems avoid thermal bridging caused by metal studs in traditional alternatives by placing the insulation outside of the studs. This creates a sort of thermal blanket that eliminates thermal “leaks.”
• Occupant Comfort & HVAC: Envelope stability allows for more consistent humidity control and a quieter indoor environment by preventing HVAC systems from working too hard to keep the temperature at the right levels.

Envelope design at the system level avoids issues while accomplishing more in high-rise and multifamily structures typical of city living.

Aligning with Passive House and Urban Energy Standards

Passive House standards, such as low energy consumption, thermal comfort, and high indoor air quality, have found increased adoption in both new construction and renovations, particularly in urban environments. Sto’s systems allow architects to achieve Passive House performance and regulatory requirements by using a single-source solution. Here’s how:

• Effective Continuous Insulation (CI): Achieving the ultra-low U-factors required by codes in dense cities is possible through use of properly engineered CI. The use of StoTherm ci, StoPanel or StoVentec systems allow architects to choose from various insulation types (GPS, mineral wool, or EPS) with thicknesses tailored to specific climate or project requirements while keeping the assembly lightweight and easy to install. These systems are also ideal for either new construction or renovation projects.
• Air and Moisture Control: StoGuard^® air and water-resistive systems provide a continuous barrier across the entire building enclosure that resists both air and water intrusion. Not only are StoGuard solutions engineered and tested as part of Sto’s building envelope systems, but there is also a variety of products to choose from depending on project requirements – from liquid-applied barriers to self-adhered barriers or solutions for particular climate or geographic needs. StoGuard Detail Components are also available for detailing at joints, seams, and rough openings.
• Navigating “Stretch Codes”: Many sites adopt codes which are more aggressive than national standards. Sto’s systems are tested as complete assemblies. This gives architects the data they need to achieve these requirements without the guesswork of mixing and matching components that may not work well together. Sto offers systems comparisons on its website as well as the Sto Wall Selector^® to assist in identifying the most appropriate solution for a project.

Carbon-Conscious Facade Design

Building with conscience is at the heart of Sto’s philosophy. The carbon footprint of a building doesn’t need to be massive to look good and perform at peak efficiency. Sto systems help accomplish architect goals for performance and aesthetics while remaining environmentally conscious.

• Operational Carbon Reduction Through Energy Performance: Sto’s CI solutions and the use of continuous air and water-resistive barrier system make the building energy efficient. Less energy spent heating and cooling every day means a massive reduction over its lifetime.
• Reduced Embodied Carbon in Material Selection: By using lightweight materials, less fuel is used for shipping, and less heavy structural steel or concrete is needed to hold the building up, lowering the overall “embodied” footprint of the whole project.
• Extending Building Lifespan Through Moisture-Managed Systems: A facade that lasts longer means less carbon footprint spent replacing it. Using systems like StoVentec, a drained and back-ventilated rainscreen system, provides for air movement and water drainage behind the cladding. StoTherm ci and StoPanel systems also incorporate a drainage plane that allows incidental moisture to exit the wall assembly.
• Less Lifecycle Repainting and Replacement: Coatings like StoColor^® Lotusan^®, with its Lotus Effect^® technology that self-cleans with rain, reduce repainting cycles and its environmental impact.
• Decarbonization Without Aesthetic Compromise: Sustainable doesn’t have to mean ugly or boring. A building facade can have the appearance of heavy, high-carbon stone or wood, while being a lightweight, carbon-conscious Sto solution like StoCast^® Brick, StoCast^® Wood, or StoSignature finish.

Smart Retrofits in Dense City Contexts

In cities, there is rarely a blank slate when it comes to construction. Often, the reality is fixing or upgrading existing buildings that are inefficient, ugly, or failing code. Using Sto system-based solutions, these issues can be overcome without the downsides that come with traditional retrofitting.

Attaching a Sto system like StoTherm ci over an existing facade, for example, reduces waste and disruption. Because they’re lightweight, they typically don’t require expensive structural reinforcements to the existing building.

Insulation can also be tricky. In a dense city, widening a building is often not an option. Using high-performance exterior insulation, you improve insulation power from the outside. This allows the owner to keep their available interior space while hitting modern energy targets.

When it comes to maintaining architectural character, using StoCast Brick to mimic traditional masonry, or StoCast Wood to give a warm, organic look, is a good option to upgrade a building without losing its historic look.

Urban sustainability requires solutions that are compact, high-performing, and adaptable. Facade systems designed for continuous insulation, durability, and carbon-conscious performance help cities move toward long-term resilience.

Explore the Sto Wall Selector to find a solution that fits your project’s requirements. You can also contact our team online or call 800-221-2397 for a project-specific consultation.

The post Surviving the Concrete Jungle: Sustainability Strategies for Urban Building 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..

You may have heard the catch-all term “pressure-equalized rainscreen” used as a standard generic description for all rainscreens. Unfortunately, it isn’t that easy. Performance depends on design intent, exposure conditions and system execution—not labels. With this in mind, there are two general types of rainscreens that differ in execution, risk and durability: drained, back-ventilated rainscreens and pressure-equalized rainscreens. In this blog post, we examine both, highlighting the key differences and the pros and cons of each.

The Purpose of Rainscreen Systems

Before we zoom in on the differences between the two types of rainscreens, let’s zoom out for a second and review why rainscreens are so important. As mentioned earlier, rainscreens reduce moisture and enhance durability and energy efficiency. But how do they do this?

A rainscreen cavity serves as a crucial differentiator, creating a ventilated drainage gap between the outer cladding and the building’s weather-resistive barrier (WRB). This design achieves several things, including:

• Manages bulk water
• Controls air pressure differentials
• Supports drying and moisture resilience
• Reduces hydrostatic pressure
• Prevents rot, mold and corrosion, and protects the building’s inner structure

Now that we’ve established the purpose of the rainscreen, let’s peel back the layers and take a closer look at the different types.

What Is a Drained and Back-Ventilated Rainscreen?

First, let’s cover the drained and back-ventilated rainscreens. These systems are intended to allow bulk water in (especially if they are open joint systems); they must therefore allow for the water to drain and dry out. Additionally, instead of full pressure neutralization, there is pressure moderation.

The benefits of drained and back-ventilated rainscreens include:

• Robust moisture management in real-world conditions
• Greater tolerance for construction variability
• Effective across a wide range of climates and building types

Our StoVentec^® rainscreen systems, specifically designed as drained, back-ventilated rainscreens for high-performance wall assemblies, provide the necessary channels for air movement and water drainage behind the cladding. They incorporate insulation, an air/moisture barrier and a framework to create a complete, energy-efficient and weather-resistant facade system. Plus, you get a range of options from thin masonry veneer cladding, versatile fiber cement, traditional textured finishes, and even brilliant back-painted glass cladding that allows for full-color HD digitally printed glass for a truly one-of-a-kind building facade.

What Is a Pressure-Equalized Rainscreen?

The theory behind the pressure-equalized rainscreen is to balance air pressure in the cavity behind the cladding with the outside wind pressure. A pressure-equalized rainscreen is designed so that wind pressure outside the cladding is equalized with the pressure inside the cavity. This prevents the wind from “pushing” water through joints and cracks. Minimizing pressure differences prevents water from being drawn into the cladding, allowing gravity and drainage to manage it effectively, even in high-wind conditions such as hurricanes.

The benefits of the pressure-equalized rainscreen include:

• Can reduce wind-driven rain intrusion when properly designed and executed
• May support thermal performance goals in tightly controlled assemblies
• Potential for long-term durability when airtightness and compartmentalization are maintained over time

Because of these dependencies, true pressure-equalized performance can be difficult to achieve consistently across typical construction environments.

At-a-Glance Performance Tradeoffs

The following comparison reflects general performance tendencies based on design intent and execution complexity. It is not a design guide or a guarantee of performance.

Climate, Height and Exposure Considerations

Choosing the right rainscreen for your project depends on several variables. Climate, height and exposure are three critical factors.

Scenarios where drained and back-ventilated systems are typically preferred:

• Mixed-humid, coastal or variable climates
• Retrofit and recladding projects
• Projects prioritizing durability and drying capacity

Scenarios where pressure-equalized design principles may be appropriate, typically limited to projects with stringent quality control and long-term maintenance strategies.

• Tall buildings with extreme wind exposure
• Highly controlled construction environments

Regardless of the rainscreen system your project requires, Sto can provide project-specific recommendations. We also provide engineering guidance for the installation of our tested rainscreen assemblies to ensure long-term performance.

Why System Design Matters More Than Terminology

To fully realize the benefits of any rainscreen system, it must be part of a systemized assembly. Material-only approaches create a piecemeal solution that inevitably results in gaps between incompatible products. in most real-world applications, durability, drying capacity and tolerance for construction variability are more reliable predictors for long-term performance than theoretical pressure neutralization.

Sto designs for how buildings are built, exposed and maintained as a systemized approach, reducing risks and improving durability. Our integrated components are designed to work together under real-world conditions. And our tested assemblies reduce uncertainty.

Critical Factors for Maximum Rainscreen Performance:

• Continuity of the air and water-resistive barrier
• Proper cavity design
• Compatible materials and detailing

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

Selecting the Right Rainscreen for Performance Longevity

As you’ve seen, rainscreens are not all the same. Both drained and back-ventilated rainscreens and pressure-equalized systems have value when properly applied. To effectively select the right rainscreen for your application, evaluate project conditions, not trends or shorthand terminology.

Sto is a trusted building science authority focused on real-world performance. We invite you to consult Sto’s team for project-specific rainscreen guidance. To learn more or request a project-specific consultation, explore our Wall Selector, or contact us online or call 800-221-2397.

The post Drained and Back-Ventilated Rainscreens vs Pressurized-Equalized Rainscreens appeared first on Sto Corp..

As a leader in rainscreen innovation, efficiency and performance-based engineering, Sto has been actively working on solutions to overengineering, with a focus on fiber-cement applications. StoVentec^® Fiber Cement is the result of those efforts.

StoVentec^® Fiber Cement: A Smarter Structural Approach

A forward-thinking solution that helps architects and contractors reduce overdesign and optimize facade performance, StoVentec^® Fiber Cement offers unparalleled versatility and design freedom for your projects. As an extension of our trusted Rainscreen^® systems, this durable, aesthetically flexible cladding solution empowers architects to create facades as unique as the buildings they design.

One of the design tools available with this system is the StoVentec Fiber Cement Design Guide and Detail Booklet. This powerful guide enables lean framing layouts with 24″ on-center spacing. That’s an 8” difference compared to traditional fiber-cement systems, reducing material requirements by up to one-third! The benefits of this lean framing approach are clear:

• Material Efficiency: Fewer studs and connection points mean lower material costs and lighter wall assemblies without sacrificing performance or durability
• Labor Savings: Wider spacing reduces installation time and simplifies layout coordination between trades
• Smarter Engineering: Reduces overdesign and optimizes facade performance, saving time and money
• High Performance: StoVentec Fiber Cement still meets or exceeds performance standards for durability, fire and moisture management
• Design Flexibility: Allows architects to specify fiber cement with the same confidence as denser framing systems, enabling clean, modern facade designs
• Competitive Advantage: Gives building owners and contractors an edge by combining efficiency with proven Sto engineering

Performance and System Validation

StoVentec^® Fiber Cement maintains performance, structural stability and design flexibility while simplifying installation and reducing engineering time and costs. These aren’t talking points. They’ve been proven. StoVentec^® has been rigorously tested for wind load, deflection and indention resistance, and is currently undergoing everyday impact testing.

The StoVentec Fiber Cement Design Guide and Detail Booklet provides:

• Clear parameters and documentation to verify compliance with project requirements.
• Predictable outcomes and streamlined coordination through pre-engineered, tested details
• Design tables and testing data supporting 24″ OC spacing, tested sub-framing and performance results for wind resistance and system integrity
• Details on how the system integrates with air and moisture management layers to deliver a complete, high-performance rainscreen solution from one manufacturer with a single source warranty
• Verified compatibility between the fiber cement panels, sub-framing and StoVentec components for complete system assurance

Leaner. Smarter. Stronger.

Overengineering is inefficient in all the ways we’ve outlined. It’s time to go leaner, meaner and stronger with lean framing solutions. StoVentec Fiber Cement proves that efficiency and performance can coexist, delivering high-value facades with lean framing and uncompromised quality.

To learn more about StoVentec^® Fiber Cement, visit our website or contact us to speak with a representative.

The post Lean Framing Solutions for Fiber Cement Cladding appeared first on Sto Corp..

Maybe not.

While most of these buildings have outlived their useful lives and underperform in virtually every area – energy efficiency, aesthetically, building codes – the bones are usually solid. And that presents the opportunity for another solution: recladding.

The Benefits of Recladding

When you have an older structure, there are pressures from all sides to renovate. The regulatory bodies want it to be brought up to current code. Management wants higher energy standards. Tenants and the community want a more modern aesthetic. Fortunately, recladding can modernize even the oldest dinosaur, enhancing sustainability, lowering costs, and improving performance. Let’s explore each of these benefits a little further.

Sustainability

Obviously, sustainability is a priority whether it’s a renovation or a rebuild. And believe it or not, it is possible to turn an antiquated structure into a sustainable one. In fact, that is one of recladding’s strengths. Here are a few other sustainability benefits of recladding:

• Extends the life of existing building stock
• Avoids embodied carbon from demolition debris and new materials
• Supports climate goals with improved envelope performance

Cost Efficiency

Cost is always an important factor and can, at times, be the determining factor. The cost to demolish and rebuild is not cheap. By choosing to reclad, you can realize there is the potential for some significant cost efficiencies, including:

• Lower upfront costs compared to full rebuild
• Faster schedules minimize revenue loss for occupied buildings
• Reduced permitting and disruption

Design and Performance

One might believe that only rebuilding gives architects and designers the freedom to create a one-of-a-kind marvel of modern science. But you don’t have to rebuild to achieve design freedom. Recladding delivers the ability to:

• Completely transform aesthetics
• Upgrade thermal and moisture performance with modern rainscreen and ci systems
• Improve tenant comfort, acoustic control, and property value

As you can see, recladding offers several benefits and may even prove cost-effective in the long term. Let’s talk recladding specifics by reviewing Sto’s proven recladding solutions.

Sto Recladding Solutions: Proof Positive

Sto is the innovative world leader in building envelope solutions, including wall cladding systems, air barriers, coatings, and restoration systems. Among these innovative solutions are many that can you transform those dinosaurs we’ve been talking about. Let’s begin with StoVentec^® Rainscreen Systems.

StoVentec^® Rainscreen Systems – Ideal for overclad retrofits, these advanced systems are complete, with all the system components – including the air and water-resistive barrier, thermal insulation, sub-construction, and facade panel – engineered to perform together. The StoVentro sub-construction is an integral component of the StoVentec systems. It’s adjustable to accommodate uneven substrates and absorbs both the wind load and dead loads present on the facade. The StoVentec Rainscreen Systems are available in a variety of colors, shapes, textures, and materials, including glass and fiber cement, all in a single-source system backed by a 10-year system warranty.

The StoTherm^® ci Mineral system is the first decorative and protective exterior wall cladding in the U.S. designed around the performance and advantages of mineral wool. Not only does mineral wool provide advanced acoustic dampening and limits thermal conductivity, but it can also withstand temperatures of 2000 degrees Fahrenheit while still resisting fire.

StoTherm^® ci Systems – For energy upgrades, Sto offers StoTherm^® ci Systems, an EIFS with Drainage continuous insulation wall system. These systems are comprised of a high-performance, energy-efficient wall cladding that integrates StoGuard^® air and water-resistive barrier, GPS, EPS, XPS or mineral wool insulation, and drainage. The nearly limitless aesthetic appearances that can be achieved using Sto textured finishes, Sto Specialty Finishes, or StoCast Brick or Wood custom prefabricated shapes allow for complete design freedom.

Sto offers a few other solutions to aid in your reclad project as well. These include:

• Cladding versatility – Sto’s systemized approach allows for you to select the system most appropriate for your project. Choices of cladding include StoTherm ci systems, StoVentec Rainscreen systems or one of Sto’s other engineered and tested systems.
• Variety of aesthetic options – The vast range of materials, finishes, and design options, include fiber cement, glass, traditional textured finishes, finishes that mimic stone, concrete, metal, masonry veneer, or Sto’s lightweight, custom resin-cast shapes, StoCast Brick and StoCast Wood.
• StoPanel^® Systems – Offering a wide range of aesthetics and finishes to meet your design vision without compromise, StoPanel^® Systems save time with pre-assembled panels ready to install on-site, reducing labor, material waste, and weather-related delays.
• The A.R.T. of reStore^® – For complete facade renewal strategies (aesthetics, repair, transformation), Sto’s reStore program has a program level specific to your restoration needs, offering a single source for materials and services to meet all your maintenance and restoration requirements.

You’ve heard the benefits. You’ve learned a little about our recladding solutions. Now, it’s time to show you what these systems are truly capable of by sharing some of our most recent case studies.

Sounds Compelling, Looks Incredible: Recladding Transformations

The two featured projects below could have easily been total rebuilds. But the owners discovered that they could achieve all their sustainability, performance and design goals with the help of Sto.

Cafesjian Art Trust

Location: Shoreview, MN
Building Type: Entertainment and Cultural
Construction Type: Renovation

A renowned Minnesota businessman and philanthropist, Gerald Cafesjian established the Cafesjian Art Trust to share his collection of modern art with the public. When the trust prepared for a change of address, they realized that the building was well past its prime. Instead of a total rebuild, they opted to reclad and upgrade the facade to better reflect the museum’s mission and artwork.

StoVentec Glass enabled architects to create a customized, visually compelling building facade that could be installed over the existing ribbed concrete and brick exterior walls. The non-combustible continuous exterior insulation and continuous air and water-resistive barrier with StoVentro™ sub-construction produces an advanced high-performance wall assembly. Additionally, the architect’s vision of a brilliant, colorful building exterior was brought to life with varying shades of blue StoVentec Glass.

To read the entire case study and see project photos, visit https://www.stocorp.com/sto_project_gallery/cafesjian-art-trust/.

The Heritage

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

Rising 35 stories above Fifth Avenue and overlooking Central Park, The Heritage is part of the Empire Building Challenge, an innovative partnership between the New York State Energy Research and Development Authority (NYSERDA) and the private sector, setting out to demonstrate the feasibility of retrofitting tall buildings to comply with low-carbon standards.

To answer the Empire Building Challenge and bring these iconic residential towers into the age of efficiency, the architectural firm employed StoTherm ci, the benefits of which went beyond the great looks and exceptional efficiency. According to King Contracting president Brett Steinberg. “StoTherm ci was the most cost-efficient option for the developer, as metal panels would be almost double the cost, and to rip the facade off and redo it with a brick veneer would be almost triple.”

The result has been a success for everyone involved. The building owner was able to retrofit its aging property, bringing it up to and beyond modern efficiency standards, and the residents now enjoy lower utility costs and a more comfortable living environment.

To read the entire case study and see project photos, visit https://www.stocorp.com/sto_project_gallery/the-heritage/.

Decision Point: Reclad or Demolish?

So, when should you reclad versus demolish and rebuild? It’s the million-dollar question. There are certain scenarios where recladding provides clear advantages. A few examples of these scenarios are:

• Structurally sound buildings needing envelope performance upgrades
• Projects constrained by budget or schedule
• Sites with historic or community value worth preserving
• Desire to minimize disruption to building occupants (tenants, patients, etc.)

Recladding: A Sustainable Path Forward

It may seem easier to just wipe out an old building and start over. But a complete rebuild is expensive and can lead to an extended out-of-use time. Our innovative recladding solutions can transform those old dinosaurs into a modern structure in virtually every sense of the term. Increased sustainability. Lower long-term cost. And enhanced energy-efficiency and performance. Recladding offers all these benefits and more. And Sto is the perfect partner with proven reclad solutions that align with climate goals, code compliance, and design aspirations.

On that next renovation project, consider Sto recladding solutions instead of a full demo and rebuild. To learn more about Sto’s recladding solutions or to discuss your project with our specialists, contact us at 800-221-2397 or via the website.

The post Why Recladding is the Smarter Path to Sustainable Renewal appeared first on Sto Corp..

In short, the weather is growing more extreme and, as a result, there’s an increasing demand from municipalities, insurers, and property owners for storm-ready and energy-efficient construction. Climate resilience as a design imperative is becoming a mandate. And in high-risk zones, there is a growing emphasis on building performance over cost.

With comprehensive systems for protecting buildings in extreme weather conditions and a reputation as a trusted partner to architects, building owners, and GCs, Sto is ready to help.

Extreme Weather Solutions from the Envelope Experts

Sto Corp. is the innovative world leader in building envelope solutions, including wall cladding systems, air barriers, coatings, and restoration systems. We offer integrated, tested systems that support resilient design across a range of climate stressors, including wind, moisture, and temperature extremes. These systems help reduce long-term building damage, improve occupant safety, and simplify compliance with climate-driven codes and insurance standards.

A few examples of our proven systems include StoGuard^® air and moisture barrier system, StoVentec^® Rainscreen^® Systems, and Sto’s High Velocity Hurricane Zone Systems (HVHZ). Let’s cover each system, one at a time.

StoGuard^®: Airtight and Watertight Protection

The StoGuard^® family of air and water-resistive barrier systems protects buildings against air leakage and moisture intrusion and is featured in all Sto wall systems.

Fully tested and compliant with the most stringent green construction codes, StoGuard^® systems 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 whether single cladding or multi-cladding.

Features of the StoGuard^® system include:

• Fluid-applied or self-adhered air and water-resistive barrier
• A range of detail components to accommodate wall assembly penetrations like rough openings, scuppers, and dryer vents.
• Prevents moisture intrusion and uncontrolled air leakage
• Withstands wind-driven rain and pressure cycling
• May be used behind non-Sto claddings or be integrated into Sto’s fully engineered exterior wall systems to allow for complete continuity and compatibility of the air and water resistive barrier across the exterior wall.

StoVentec^®: For Buildings that Look Great and Perform Even Better

StoVentec^® Rainscreen^® systems are complete, with all the system components – including the air and water-resistive barrier, thermal insulation, sub-construction, and facade panel – engineered to perform together. And they offer the widest variety of aesthetic options available, including colors, shapes, textures, including glass and fiber cement – in a single source system backed by a 10-year system warranty.

StoVentec^® Rainscreens: Engineered for Moisture and Thermal Control

• Drained and back-ventilated system that protects wall assemblies from water and condensation
• Mineral wool continuous insulation provides thermal stability in hot or cold climates
• Adjustable sub-framing adapts to irregular substrates and supports pressure-equalized rainscreen design
• Noncombustible cladding options, including render, fiber cement, glass, and masonry veneer
• Pre-engineered options with render and fiber cement that allow for reduced engineering time and money

Explore StoVentec^® Rainscreens^® with our comprehensive design guides. Download our guides to discover a redefined Rainscreen^® system that delivers on performance, durability, and the unique blends of glass, render, masonry veneer facades (MVF), and fiber cement from one supplier.

Sto High Velocity Hurricane (HVHZ) Systems: Impact and Pressure Tested

Sto High Velocity Hurricane Zone Systems provide a full range of exterior cladding options to protect against hurricane and tropical storm winds, water intrusion, and wind-borne debris: a leading cause of building envelope failure. All of Sto’s HVHZ Systems are fully engineered and tested, and compliant with Miami-Dade County, Florida NOA criteria for wind load, impact resistance, air leakage, and water resistance.

Features of Sto Hurricane Systems include:

• Options for Rainscreen, EIFS, Stucco HVHZ systems
• Fully tested and fire-resistance rated wall assemblies
• Lightweight and easy to install
• Field applied or prefabricated
• Wide range of aesthetic possibilities from glass, brick, wood, smooth fiber cement or plaster finish
• Tested for Miami-Dade or Florida Product Approval

Sto Support Systems: Ready to Assist

These field-tested, proven systems are ideal for a range of applications and scenarios. A few examples include:

• Coastal buildings requiring wind and water protection, like Seminole Brighton Bay Hotel & Casino and Lido Beach Towers
• Projects focused on energy efficiency and freeze-thaw durability like Bell Bank and Georgia King Village
• Healthcare or essential facilities in storm-exposed areas like UCF Lake Nona Medical Center and HCA Westside Regional Medical Center

Plus, our technical support staff is always available to ensure that you can feel confident in choosing Sto for your building envelope solutions. Sto systems and products undergo extensive and rigorous testing to confirm compliance with regulatory requirements. Our staff is happy to assist in resolving complex details, avoiding code conflicts, and identifying practical construction alternatives through a variety of services, including plan reviews, wall analysis, an extensive details library, application guides, and technical publications.

Building Smarter for a Changing Climate

Extreme weather is becoming the norm. Fortunately, Sto has developed comprehensive resilient design systems that achieve long-term value, occupant safety, and reduced climate-related risk. And that means, despite the unpredictability of the weather, your building’s performance will remain very predictable.

To learn more about Sto’s resilient design systems or request a project-specific consultation, explore our Sto Wall Selector or call 800-221-2397.

The post Designing for Extreme Weather appeared first on Sto Corp..

But that is the wrong question.

The right question is: How can we strategically design this retrofit so that not only is it brought up to current building standards, but it’s also equipped to meet climate, code, and performance demands well into the future?

Because that is what a retrofit is. It is an opportunity. But it’s only an opportunity if you are familiar with and have access to the right tools.

Retrofit Rainscreens and Futureproofing

Current retrofit initiatives are driven by the desire for a new, modern look, updated code requirements, environmental goals, and increased awareness of occupant health and building resilience. Influential factors include:

• Energy codes such as IECC, Title 24, and New York Local Law 97
• ESG expectations from investors and tenants
• Insurance pressures related to weather durability and fire safety

These drivers set the baseline for expectations. But we can do better. Much better.

Retrofit rainscreens are strategic infrastructure upgrades that help property owners meet evolving energy codes, climate goals, and durability standards. According to Performance Validation, a company that offers services to help clients meet cGMP and FDA regulations, these performance-enhancing systems have been proven to reduce heating and cooling energy usage by up to 40%! Plus, they reduce mechanical loads and lower condensation risk, resulting in a longer envelope lifespan and a more stable indoor environment.

Rainscreens contribute to higher-performing envelopes by providing:

• Continuous insulation that helps limit thermal bridging
• Improved control of air leakage and bulk water intrusion
• Better thermal comfort and interior humidity regulation

In other words, retrofit rainscreens can transform a relic of the past into a paragon of future performance. Especially if you specify the most advanced, most trusted rainscreen system on the market today: StoVentec^® Rainscreen Systems.

StoVentec^®: A Complete Retrofit System

By definition, A StoVentec^® Rainscreen System is a comprehensive rainscreen solution that offers aesthetic and energy upgrades. But it’s much more than that. It’s a strategic solution for retrofit applications where performance, compliance, and future readiness are top priorities.

• StoVentec^® includes all major wall components engineered to work together:
• Air and water-resistive barrier
• Noncombustible mineral wool insulation
• StoVentro adjustable sub-framing
• Cladding options including fiber cement, glass, render, and masonry veneer

Plus, StoVentec^® has been subjected to rigorous testing, complying with even the most stringent codes, including:

• ICC ESR 1233
• NYC 2022 fireblocking requirements
• Structural wind load, ventilation, and water penetration ratings
• Miami-Dade and Florida Product Approval

StoVentec^® is so advanced and comprehensive that it supports retrofit strategies aligned with Passive House and net-zero energy goals, deep energy retrofits in urban or climate-sensitive zones, and code compliance upgrades for affordable housing, hospitals, and schools.

Below are highlights from a couple of retrofit projects where StoVentec^® transformed the property.

Projects that Leveraged Rainscreens to Futureproof

Cafesjian Art Trust

A renowned Minnesota businessman and philanthropist, Gerald Cafesjian established the Cafesjian Art Trust in greater Minneapolis to share his collection of modern art with the public. When the trust prepared for a change of address, they realized that the building’s facade needed a substantial upgrade.

Mohagen Hansen Architectural Group had a vision for a brilliant, colorful building exterior. StoVentec^® made it possible to achieve both the architect’s vision and create an envelope that is future-ready. The StoVentro subconstruction attached to the existing substrate with bracket connections, enabling the 1,700 square feet of StoVentec^® glass panels to deliver a customized, visually compelling building facade while optimizing envelope performance.

Read the full Cafesjian Art Trust case study.

Innovation Outpost

Built on the former site of Amarillo High School, Innovation Outpost is a new hub for innovation on the campus of Amarillo College. With an eye toward creating a building that would define innovation, Parkhill, the architectural firm, and the college turned to Sto Corp. for the precise aesthetic they sought, which centered around the idea of a mirrored facade that would allow passersby to see the rich history surrounding the building by looking at the structure itself.

Ultimately, Parkhill specified StoVentec^® Glass with mirrored Stopsol finish to eliminate window openings and deliver a continuous, high-performance facade system. This allowed them to flawlessly execute on their design vision, while simultaneously providing ease of installation and long-term performance, all in a single integrated system.

Read the full Innovation Outpost case study.

A Trusted Partner for Full-System Rainscreen Solutions in Retrofit Applications

Sto Corp. is the innovative world leader in building envelope solutions, including wall cladding systems, air barriers, coatings, and restoration systems. And they’ve proven time and again that they are a trusted partner for full system rainscreen solutions in retrofit applications. Sto Corp. is committed to creating solutions that enable architects to execute their vision while providing building owners with the long-term performance they expect.

One reason for the reputation as a trusted partner is that Sto also provides a range of support tools and data to facilitate the design and construction process. This support includes:

• RIB Speclink specification sections
• Fully tested system assemblies
• Technical support for design development and system integration

No matter what the challenge, Sto is a partner you can depend on.

Elevating Retrofit Outcomes with Complete Systems

Retrofits are a fact of life in our business. Without question, there are challenges when working with an existing structure. But there are also opportunities. StoVentec^® systems help you to seize that opportunity, providing a clear path for modernizing aging buildings while meeting today’s code and performance standards. The system approach improves efficiency, simplifies project delivery, and supports long-term building value.

To learn more about StoVentec Rainscreen Systems, visit our website or contact a rainscreen specialist to discuss your next project.

The post A Retrofit Isn’t About Patching the Past, It’s About Preparing for the Future appeared first on Sto Corp..

This blog post aims to answer this question from a technical and building science perspective. But first, let’s discuss some of the variables that make some climates more challenging for exterior claddings.

Climate-Specific Performance Considerations

Everyone in our industry is familiar with the climate zone map. The map exists because different zones present different challenges for construction materials and the construction process itself. Some of the primary challenges include:

• Thermal cycling (freeze-thaw, heat gain)
• Persistent moisture (coastal, tropical, or mixed-humid zones)
• Wind pressures (tall structures, open exposure zones, hurricane-prone areas)
• Combustibility requirements (code compliance in WUI and multi-story)

Those are the primary challenges of some of these zones. But let’s dig a little deeper. What are some of the specific challenges that may be encountered by zone or hazard? We’re glad you asked.

Examples of Challenges by Zone/Hazard Include:

• Hot/Dry – A hot, dry climate significantly impacts UV stability and requires thermal insulation to reduce cooling loads
• Mixed-Humid or Marine – An area that has high humidity and/or is coastal usually battles moisture management via cavity drainage
• Cold – Those zones to the far north that experience long, cold winters encounter thermal breaches that require freeze-thaw durability and continuous insulation
• High Wind/Hurricane – Zones that encounter hurricanes or high seasonal winds test structural strength that can be addressed by mechanical fastening and reinforced sub-framing options.
• WUI/Fire-Prone – Areas that are at risk of wildfires obviously require fire resistance and non-combustible materials

Some of these hazards occur in multiple zones. And every zone has challenges. Now that we have reviewed what some of those hazards are, it’s time to get to our question: can fiber cement perform in all these climate zones and stand up to these hazards?

Fiber Cement: Resilient by Design

The short answer to the question is yes, fiber cement is resilient enough to be used in all these climates. But we’re going to put an asterisk by that statement because there are a couple of important considerations.

First, the fiber cement must be specified for performance in more challenging climates and not just chosen for appearance. This may be obvious, but it’s imperative to prioritize functionality in harsh climates. If the balance tips too far to the design side, you risk exposure to the elements and compromise the structure.

Second: extreme weather has a way of finding the weakest point in your envelope. The way to prevent that is to shift your thinking away from material selection to engineered integration. What we mean by that is you need a system-based approach. By choosing a system over a bunch of random components that may or may not work well together, you’re implementing a systemized enclosure strategy designed to create as tight an envelope as possible.

A system approach provides the best defense against the elements for building owners, but there are other benefits as well. Warranty cohesion is a big one. By having one warranty that covers the entire system, you have single-source responsibility, which means no finger-pointing and the manufacturer has nowhere to hide. Also, when you invest in an integrated system as opposed to individual products, you get performance-tested compatibility. Each component in that system is designed to work cohesively and has been tested to ensure that it does.

Sto’s StoVentec^® Fiber Cement

Sto employs a systemized approach for all our envelope and rainscreen systems to deliver both envelope performance and aesthetic integrity, particularly in demanding conditions. Our fiber cement system includes insulation to AWRBs and sub-construction, reducing field guesswork. It provides the resilience, versatility, and engineering support necessary for today’s performance-driven projects. Our solution is called StoVentec^® Fiber Cement.

StoVentec^® Fiber Cement is the latest innovation in the StoVentec^® line, designed to bring unparalleled versatility and design freedom to your projects. As an extension of our trusted Rainscreen^® systems, this durable and aesthetically flexible cladding solution empowers architects to create facades that are as unique as the buildings they represent.

With a wide range of finishes, textures, and colors, StoVentec^® Fiber Cement seamlessly integrates into any design vision—whether bold and contemporary or timeless and understated. Beyond its visual appeal, the system combines exceptional durability, outstanding wind load resistance, and low maintenance to deliver high-performance facades built to last.

What Differentiates Sto’s Fiber Cement Solution?

Grade IV, High-Density Panels

• Enhanced dimensional stability
• Resistant to moisture, impact and damage
• Ideal for high wind loads and humid climates

Ventilated Rainscreen Design

• Allows pressure equalization and back ventilation
• Efficient moisture drainage and thermal performance

Continuous Insulation Options

• Meets or exceeds prescriptive energy code requirements
• Reduces thermal bridging, critical in colder climates

Cold-Weather Installation

Materials suitable for low-temp application without compromising performance (including new self-adhered membrane as an option)

Wind and Structural Integrity

• Engineering support available to meet site-specific pressures and impact zones
• Complies with Florida Building Code for High Velocity Hurricane Zones

Non-Combustible Cladding

• Meets ASTM E136 performance requirements
• Suitable for use in NFPA 285-compliant assemblies

Sto’s offering provides the resilience, versatility, and engineering support necessary for today’s performance-driven projects. And because StoVentec Fiber Cement is a complete system, it can certainly work in all climates.

Fiber Cement: Battle-Tested and Proven

Fiber cement cladding remains a popular choice for a reason. It’s been battle-tested. It’s proven its durability. And as part of an integrated system, yes, it can perform in virtually any climate zone and stand up to nearly any environmental challenge.

Our rainscreen specialists are available to answer your technical questions at 800-221-2397 or via our contact form.

The post Is Fiber Cement a Good Fit for All Climates? appeared first on Sto Corp..

Fiber Cement Systems: A Game-Changer in Modern Cladding

For decades, fiber cement cladding has proven to be a durable and affordable cladding option in residential construction. Its fire-resistance and low-maintenance properties, combined with the addition of dense, high-quality panels, have made the use of fiber cement a more popular choice in commercial construction.

Fiber cement has always been an exceptional product, no question. With the launch of the StoVentec^® Fiber Cement Rainscreen System, the possibilities get even better. With this new system, fiber cement is an integral component of a revolutionary rainscreen system. And it is a total game-changer.

StoVentec Fiber Cement is a high-performance, fully integrated rainscreen system that enhances moisture control, improves energy efficiency, and increases fire resistance, while offering design flexibility. Engineered for modern construction, this robust system offers advanced thermal performance, fire protection, and weather resistance. Its features include non-combustible continuous insulation, a weather-tight air and water–resistive barrier, and high-density, non-combustible fiber cement panels—all from one manufacturer.

Durability and So Much More

Typical fiber cement panels are known for their durability and low maintenance. The benefits of the StoVentec Fiber Cement Panels, however, go much further.

Advantages of the StoVentec Fiber Cement Rainscreen^® System include:

Moisture Control & Durability

• Drained and back-ventilated design allows for continuous airflow, preventing trapped moisture.
• Reduces mold, mildew, and water damage, extending the lifespan of the facade.
• Creates a stable, long-lasting building envelope that can withstand harsh weather conditions.

Energy Efficiency & Thermal Performance

• Incorporates non-combustible continuous exterior insulation to enhance thermal efficiency.
• Minimizes thermal bridging, reducing heating and cooling costs.
• Contributes to improved indoor comfort and energy savings for both commercial and residential buildings.

Fire Resistance & Safety

• High-density fiber cement panels are non-combustible, providing a safer facade option.
• Meets stringent fire safety regulations, making it ideal for high-rise buildings and commercial applications.
• Adds an extra layer of protection without compromising on design and performance.

Design Flexibility & Aesthetic Possibilities

• Available in a variety of colors, textures, and finishes for modern and traditional designs.
• Can be paired with Sto finishes for additional customization and branding opportunities.
• Compatible with StoColor systems, ensuring color vibrancy and long-term performance.

Innovative Fiber Cement Panels

The StoVentec Fiber Cement Grade IV panels offer higher flexural strength than most current fiber cement panels on the market, making them more resistant to moisture, impact, and temperature fluctuations. They are ideal for high wind loads and humid climates. In contrast, Grade II panels may have limitations for certain building heights or applications due to reduced strength and durability.

Unmatched Aesthetic Versatility

The StoVentec Fiber Cement Rainscreen System offers unmatched versatility, blending customizable dimensions with curated color collections to meet a wide range of architectural needs. Panels are available in sizes up to 4’ x 10’ (1220 x 3050 mm) and thicknesses of 8–10 mm and can be cut into virtually any shape or size, providing design flexibility for both facades and interiors. Additionally, two distinct color collections further enhance creative possibilities. The Primara Line features a grey-bodied core with an opaque surface finish, offering a smooth texture with a light, sanded grain that provides subtle depth and a refined look. The Strata Line, featuring a pigmented core and an opaque finish, offers an ultra-smooth texture with a delicate linear effect, resulting in a sleek and modern aesthetic.

StoVentec Fiber Cement: A Complete Wall System

StoVentec is more than a stand-alone system; it’s a fully integrated system. Optimized for both new construction and renovation projects, this advanced system seamlessly integrates with StoVentec Fiber Cement Panels, StoVentro™ sub-construction, Sto air and water-resistive barriers, and continuous exterior insulation. Additionally, since StoVentec Fiber Cement is a full system, it is tested as a full system, and specification, coordination, and installation are simplified through one manufacturer.

Request a Sample Today

Maximizing building performance is as simple as selecting the right system from a reputable manufacturer. Unlike standard fiber cement installations, StoVentec Fiber Cement offers superior moisture management, higher energy efficiency, proven fire safety performance, and greater design flexibility. It’s the one system that can make everyone happy.

For detailed product specifications, to learn more, or to request a sample, visit us online. To speak to a rainscreen specialist, call (800) 221-2397.

The post Maximizing Building Performance with Fiber Cement appeared first on Sto Corp..

A Fully Engineered Rainscreen System for Lasting Performance

StoVentec Fiber Cement is a complete ventilated rainscreen cladding system that seamlessly integrates sustainability, design flexibility, and superior performance. Engineered for modern construction, this robust system offers advanced thermal performance, fire protection, and weather resistance. Its features include non-combustible continuous insulation, a weather-tight air and water-resistive barrier, and high-density, non-combustible fiber cement panels.

Advantages of an advanced Rainscreen^® cladding system include:

• Easily accommodates uneven substrates with adjustable sub-construction
• Improved thermal and fire protection with noncombustible mineral wool insulation
• Substrate protected from wind, rain & snow, enhancing the lifespan of the building
• Improved acoustic insulation
• Better internal humidity & moisture control
• Low maintenance

Unmatched Versatility, Unmatched Performance

StoVentec^® Rainscreen^® systems offer an extensive range of colors, textures, and materials from fiber cement and thin masonry veneer to stunning back-painted glass cladding with HD digital printing. Combined with recognized compliance under AAMA and NFPA standards, StoVentec provides the proven versatility and performance that architects trust. Mix and match any cladding texture, material, shape, or color to create a true original.

The StoVentec Fiber Cement Rainscreen System is no different. Offering a fully tested assembly with a single-source warranty simplifies the construction of the facade. The StoVentec team provides project support throughout the project to ensure seamless execution and total satisfaction.

One of the World’s Most Advanced Rainscreen Systems

This advanced rainscreen system features StoGuard^® Air and Water-resistive Barrier (AWRB), exterior insulation, and design flexibility, functionality, and innovation with rainscreen design benefits that add lasting weather protection and superior value. StoVentro sub-construction provides a structural system that carries the dead load of the cladding and resists wind load.

Fully tested and compliant with the most stringent green construction codes, StoGuard^® systems 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.

Pre-Engineered Solutions for Easier Installation

Pre-engineered means you provide us with your design pressure requirements, and we deliver an easy-to-install, high-performance rainscreen system. The pre-engineered installation design includes options for high, medium, and low wind-pressure applications, eliminating the need for extensive engineering and streamlining installation, ensuring optimal results with minimal effort. Plus, you don’t have to worry about piecing together a solution and then figuring out how to make all the components work together. Our system is designed to work cohesively as a single unit.

Innovative Fiber Cement Panels for Maximum Durability

The StoVentec Fiber Cement Panels Grade IV panels offer higher flexural strength than most current fiber cement panels on the market, making them more resistant to moisture, impact, and damage. They are ideal for high wind loads and humid climates. In contrast, Grade II panels may have limitations for certain building heights or applications due to reduced strength and durability.

Panels are available in 4’ x 8’ or 4’ x 10’ with thicknesses of 8 or 10 mm and may be installed vertically or horizontally, with visible or concealed attachments, and can be fabricated into virtually any shape or size, providing design flexibility for both facades and interiors.

Distinct Color Collections for Creative Freedom

Two unique color collections are available to further enhance creative possibilities.

• The Primara Line features a grey-bodied core with an opaque surface finish, offering a smooth texture with a light sanded grain, providing subtle depth and a refined look.
• The Strata Line, designed with a pigmented core and an opaque finish, delivers an ultra-smooth texture with a delicate linear effect, creating a sleek and modern aesthetic.

The system allows you to achieve striking, lasting designs for contemporary facades or artistic interiors.

A Complete System Backed by Sto’s Single-Sourced Warranty

The StoVentec Fiber Cement Rainscreen Systems means you don’t have to sort through a hodge-podge of wall components like cladding, sub-framing, insulation, air and water-resistive barrier (AWRB), etc. Instead, architects, owners, and contractors get a fully tested, code-approved, high-performance ventilated Rainscreen system. This includes a best-in-class AWRB, robust mineral wool continuous insulation, the most installer-friendly, adjustable sub-framing system available, and – of course – amazing StoVentec^® Rainscreen cladding.

Best of all, every system is backed with a 10-year warranty by Sto, manufacturer of StoVentec^® Original Rainscreen Systems. Our local technical specialists are ready to help you create a lasting, high-performance work of art in cladding.

A Leader in Innovative, Sustainable Building Solutions

At Sto, we are focused on addressing the evolving needs of modern construction. We are committed to creating sustainable solutions that perform at the highest level. StoVentec Fiber Cement is precisely what you would expect from the leader in innovative, sustainable building solutions. To learn more about StoVentec Rainscreen Systems, visit https://www.stocorp.com/stoventec-rainscreens-support/.

The post Fiber Cement Systems: A Game-Changer in Contemporary Cladding appeared first on Sto Corp..

A Fully Engineered Rainscreen System for Lasting Performance

StoVentec Fiber Cement is a complete ventilated rainscreen cladding system that seamlessly integrates sustainability, design flexibility, and superior performance. Engineered for modern construction, this robust system offers advanced thermal performance, fire protection, and weather resistance. Its features include non-combustible continuous insulation, a weather-tight air and water-resistive barrier, and high-density, non-combustible fiber cement panels..

Advantages of an advanced Rainscreen^® cladding system include:

• Easily accommodates uneven substrates with adjustable sub-construction
• Improved thermal and fire protection with noncombustible mineral wool insulation
• Substrate protected from wind, rain & snow, enhancing the lifespan of the building
• Improved acoustic insulation
• Better internal humidity & moisture control
• Low maintenance

Unmatched Versatility, Unmatched Performance

StoVentec^® Rainscreen^® systems offer an extensive range of colors, textures, and materials from fiber cement and thin masonry veneer to stunning back-painted glass cladding with HD digital printing. Combined with recognized compliance under AAMA and NFPA standards, StoVentec provides the proven versatility and performance that architects trust. Mix and match any cladding texture, material, shape, or color to create a true original.

The StoVentec Fiber Cement Rainscreen System is no different. Offering a fully tested assembly with a single-source warranty simplifies the construction of the facade. The StoVentec team provides project support throughout the project to ensure seamless execution and total satisfaction.

One of the World’s Most Advanced Rainscreen Systems

This advanced rainscreen system features StoGuard^® Air and Water-resistive Barrier (AWRB), exterior insulation, and design flexibility, functionality, and innovation with rainscreen design benefits that add lasting weather protection and superior value. StoVentro sub-construction provides a structural system that carries the dead load of the cladding and resists wind load.

Fully tested and compliant with the most stringent green construction codes, StoGuard^® systems 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.

Pre-Engineered Solutions for Easier Installation

Pre-engineered means you provide us with your design pressure requirements, and we deliver an easy-to-install, high-performance rainscreen system. The pre-engineered installation design includes options for high, medium, and low wind-pressure applications, eliminating the need for extensive engineering and streamlining installation, ensuring optimal results with minimal effort. Plus, you don’t have to worry about piecing together a solution and then figuring out how to make all the components work together. Our system is designed to work cohesively as a single unit.

Innovative Fiber Cement Panels for Maximum Durability

The StoVentec Fiber Cement Panels Grade IV panels offer higher flexural strength than most current fiber cement panels on the market, making them more resistant to moisture, impact, and damage. They are ideal for high wind loads and humid climates. In contrast, Grade II panels may have limitations for certain building heights or applications due to reduced strength and durability.

Panels are available in 4’ x 8’ or 4’ x 10’ with thicknesses of 8 or 10 mm and may be installed vertically or horizontally, with visible or concealed attachments, and can be fabricated into virtually any shape or size, providing design flexibility for both facades and interiors.

Distinct Color Collections for Creative Freedom

Two unique color collections are available to further enhance creative possibilities.

• The Primara Line features a grey-bodied core with an opaque surface finish, offering a smooth texture with a light sanded grain, providing subtle depth and a refined look.
• The Strata Line, designed with a pigmented core and an opaque finish, delivers an ultra-smooth texture with a delicate linear effect, creating a sleek and modern aesthetic.

The system allows you to achieve striking, lasting designs for contemporary facades or artistic interiors.

A Complete System Backed by Sto’s Single-Sourced Warranty

The StoVentec Fiber Cement Rainscreen Systems means you don’t have to sort through a hodge-podge of wall components like cladding, sub-framing, insulation, air and water-resistive barrier (AWRB), etc. Instead, architects, owners, and contractors get a fully tested, code-approved, high-performance ventilated Rainscreen system. This includes a best-in-class AWRB, robust mineral wool continuous insulation, the most installer-friendly, adjustable sub-framing system available, and – of course – amazing StoVentec^® Rainscreen cladding.

Best of all, every system is backed with a 10-year warranty by Sto, manufacturer of StoVentec^® Original Rainscreen Systems. Our local technical specialists are ready to help you create a lasting, high-performance work of art in cladding.

A Leader in Innovative, Sustainable Building Solutions

At Sto, we are focused on addressing the evolving needs of modern construction. We are committed to creating sustainable solutions that perform at the highest level. StoVentec Fiber Cement is precisely what you would expect from the leader in innovative, sustainable building solutions. To learn more about StoVentec Rainscreen Systems, visit https://www.stocorp.com/stoventec-rainscreens-support/.

The post Introducing a Versatile Fiber Cement Rainscreen System for Modern Design and Performance 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.

The post Building Smarter: Energy-Efficient Solutions for Modern Construction appeared first on Sto Corp..

Give That Building a Jacket

This may be stating the obvious but older buildings often lack the thermal efficiency of newer buildings. So, chances are, your retrofit could use a new jacket. Humans adapt their clothing to environmental conditions. Our personal attire is dynamic, or at least that’s a good reason for a diverse wardrobe. Windbreakers, rain jackets, wool overcoats, and insulated, puffy jackets perform different roles for us, providing performance for certain conditions. Some jackets are multipurpose, keeping us warm and dry yet ventilated in adverse weather conditions. Exterior wall assemblies are much like these multi-tasking performance jackets, enduring longer lifespans while protecting against changing weather conditions, safeguarding interior environments, and promoting occupant health and well-being.

But sometimes, a building needs a new jacket, and retrofitting for an aesthetic refresh also provides an opportunity to enhance the wall assembly’s performance. Critical components include proper continuous air sealing and water-resistive barriers, thermal insulation, and a rainscreen ventilation cavity. As we’ll cover in greater detail in this article, these elements collectively form a high-performance exterior wall assembly.

A Modern Rainscreen System: The Perfect Jacket

When retrofitting an old building with a new jacket, air sealing is essential. A continuous air seal is best achieved with careful detailing of the air barrier, particularly at openings and corners and transitions to the roof and foundation. The addition of a rainscreen system then protects inner walls from weather exposure and prevents water and moisture from penetrating the building envelope. The benefits of a modern rainscreen system include:

• Energy efficiency: Rainscreen cladding improves thermal performance, reducing heating and air conditioning costs by up to 40% annually.
• Insulation: When done correctly, an added insulation layer enhances thermal efficiency and limits condensation.
• Protection: The cladding protects the building’s exterior from wind, rain, and snow, extending its lifespan and reducing maintenance costs.
• Structural stability: The air cavity in the rainscreen mitigates temperature variations, reducing structural movements and the risk of cracks.
• Acoustic insulation: An additional insulation layer helps block outside noise, which is beneficial in urban environments.
• Design freedom: With a rainscreen system, you get an exoskeletal system that supports a variety of architectural finishes, such as Sto’s StoCast resin cast shapes that replicate textures found in nature, and StoVentec Glass, a glass-faced composite panel that can be used in StoVentec Glass Rainscreen systems, as well as other beautiful finishes that allow you to create a smooth, textured, or patterned surface.

Components of a Modern Rainscreen System

A rainscreen is made up of several key structural components that work together to manage airflow and moisture effectively; these components usually include:

• Outer cladding material: The cladding is your building’s first line of defense. Depending on the climate zone and local environment of the building, you’ll want to choose the cladding type–fiber cement, metal panel, HPL, specialized render systems, etc.–based on the desired aesthetic, hazards present, and the level of protection that is needed.
• Air gap or cavity: A ventilated space behind the cladding that helps manage moisture. A modern rainscreen system incorporates a more significant air gap than traditional drainscreens to promote drainage and drying of wall assemblies.
• Air and water-resistive barrier (AWRB): This is attached directly to the building’s frame and is the last line of defense against air leakage and moisture intrusion. The AWRB may be permeable or impermeable to water vapor, depending on the climate.
• Exterior Insulation (a building’s overcoat): This outer insulation layer can handle moisture and drying without degrading or reducing its R-value. Depending on the building owner’s thermal requirements and targets, this layer may be supplemented. Also, energy codes require different degrees of exterior wall thermal performance.
• Venting Profiles: Several ventilation options are available to help direct moisture away from the wall surfaces and keep out pests.

Beware the Frankenstein System

As noted above, the fewer manufacturers you have to deal with, the better. Ideally, you’ll have one manufacturer that offers all the components required for your rainscreen system. It is a system, after all. A Frankenstein system is the total opposite. Often, one manufacturer is hired for the aesthetics, another for the air and moisture barrier, and another for sub-construction. A Frankenstein system sets you up for failure in the long term. If something goes wrong, all the manufacturers will point at each other, and you’ll be stuck in the middle. Keep it simple. Find one manufacturer that can provide you with a total solution from the sheathing out because that way, there’s no question about who to contact for questions during design, installation, or after completion of the project.

Seeing is Believing

When sourced and installed correctly, a rainscreen system can be transformative. It functions beautifully, saving you money starting on day one. But what does a modern rainscreen system look like? Something that functional must be ugly, right? Quite the opposite. The right rainscreen system gives your architect the freedom to achieve virtually any look. But don’t take our word for it; see for yourself. Here are a few real-world examples of the possibilities. Keep in mind every one of these examples is a retrofit. It makes the finished product even more incredible.

Cafesjian Art Trust

A renowned Minnesota businessman and philanthropist, Gerald Cafesjian established the Cafesjian Art Trust in greater Minneapolis to share his collection of modern art with the public. Cafesjian had a particular passion for the medium of glass, inspiring him to assemble an extensive collection of contemporary glass sculptures from artists such as Victor Vasarely, Georges Braque, Joan Miro, Arshile Gorky, and more. When the trust prepared for a change of address, they realized that the building’s facade needed a substantial upgrade to reflect the museum’s mission and artwork better. Mohagen Hansen Architectural Group envisioned a brilliant, colorful building exterior brought to life with varying shades of blue StoVentec Glass.

In three shades of blue–Dienes Sari, Lemanus Blue, and Sapphire Splash–StoVentec Glass allowed architects to deliver a customized, visually compelling building facade that could be installed over the previous exterior walls, which comprised ribbed concrete and brick. StoVentec Glass is an open-joint drained, back-ventilated rainscreen wall system that combines superior air and weather tightness with thermal performance. The non-combustible continuous exterior insulation and continuous air and water-resistive barrier with StoVentro™ sub-construction produces an advanced high-performance wall assembly. StoVentec Glass panels are manufactured by fusing colors directly into the glass before toughening to create a permanent color that will not wear, scratch, fade, or incur water damage.

As a retrofit project, the StoVentro subconstruction is attached to the existing sound substrate with bracket connections, enabling the 1,700 square feet of StoVentec Glass panels to connect to a flat plate.

StoVentro sub-construction is an adjustable, thermally efficient structural system of brackets, rails, fasteners, and accessories for rainscreen wall cladding assemblies. The sub-construction absorbs wind and dead loads on the facade and incorporates corrosion resistance.

“The solutions from Sto enabled us to keep the exterior envelope intact, so we avoided energy and water intrusion concerns. We were able to dress up the exterior without being invasive or labor-intensive. The grid system allowed the freedom to choose sizes and colors to create our vision with a unique pattern.”

Neil Missling | Mohagen Hansen Architecture Associate

To read the entire case study and see project photos, visit https://www.stocorp.com/sto_project_gallery/cafesjian-art-trust/.

Innovation Outpost

Innovation drives progress. And in Amarillo, TX, there is a new hub for innovation on the campus of Amarillo College. It is called Innovation Outpost, and the building’s renovation nods to the past with an eye on the future. The structure, which was the former site of Amarillo High School, holds significant meaning in the community, and it has now been rehabbed with innovative, high-performance, industry-leading products that illustrate the purpose of the new space.

The project needed to be a “large box” with no windows, tailored initially to meet the needs of the proposed first tenants that would utilize the space as a visual effects studio with 360° cameras. Natural light from window openings would have disrupted such an atmosphere. There was also interest from local film studios, but the building ultimately served as a performance space, similar to a Ted Talk environment.

The architect specified a StoVentec^® Glass Rainscreen facade with a Stopsol mirrored glass finish. This allowed them to flawlessly execute their design vision–priority number one–while providing ease of installation and long-term performance. The result is an advanced, high-performance wall assembly incorporating all the necessary control layers, sub-construction, insulation, and exterior cladding from a single source: Sto. For the project team and installers, this means one supplier, warranty, and point of contact for the exterior facade. This translates to time, labor, cost savings, and valuable peace of mind.

Innovation Outpost mirrors what Amarillo College wanted in a building representative of innovation. With the help of Sto, the structure is a campus standout, catching the eye of onlookers while reflecting Amarillo’s surrounding built environment, including the Sante Fe Building and the vivid neon sign bearing its name.

To read the entire case study and see project photos, visit https://www.stocorp.com/sto_project_gallery/innovation-outpost/.

Learn More About Rainscreens in Retrofits

On your next retrofit, consider proposing a modern, proven rainscreen system. As you’ve heard and seen, the right one can transform even the oldest building into a modern, thermally efficient work of art. Plus, it will perform and save money for the building owner well into the future.

To learn more about rainscreens in general or to receive information on StoVentec^® Rainscreen^® Systems, visit www.stocorp.com/rainscreen/.

The post Rainscreens for Retrofitting appeared first on Sto Corp..

Fortunately, there’s a comprehensive, proven solution that delivers on these fronts and others. It’s called a Rainscreen System.

A complete Rainscreen System is comprised of several key structural components that work together to manage airflow and moisture effectively; these components include:

• Outer cladding material: The cladding is your building’s first line of defense. Depending on the building’s climate zone and local environment, you’ll want to choose the cladding type–fiber cement, metal panel, HPL, specialized render systems, etc.–based on the hazards present and the level of protection needed.
• Sub-construction: a structural system of brackets, rails, fasteners, and accessories that serves as the framework for the outer cladding material. This system absorbs both the wind and dead loads on the facade and is adjustable, accommodating uneven substrates and various facade cladding materials.
• Air gap or cavity: A ventilated space behind the cladding that helps manage moisture. A modern rainscreen system incorporates a larger air gap to promote drainage and drying of wall assemblies.
• Exterior insulation: This outer layer of insulation is capable of handling some moisture and drying without degrading or reducing its R-value. Depending on the thermal requirements and targets, this layer may be supplemented. Also, Energy codes require different degrees of exterior wall thermal performance.
• Air and water-resistive barrier (AWRB): This is attached directly to the building’s substrate and is the last line of defense against air leakage and moisture intrusion. Depending on the climate, the AWRB may be permeable or impermeable to water vapor.
• Venting profiles: There are several ventilation options available to help direct moisture away from the wall surfaces and to keep out pests.

Today’s rainscreens are nothing short of marvels of modern science. If you’re considering installing one, you’ll want to be aware of building codes that have impacted the implementation of these systems.

An Evolving Building Code

In recent years, we’ve seen a wave of new building codes. Many of these provide specifications that impact the implementation of a rainscreen system. Below are a couple of examples.

2021 Building Code Changes for Water-Resistive Barriers

Evolving building codes aim to create more resilient buildings. The 2021 International Building Code (IBC) and International Energy Conservation Code (IECC) made several changes to air and water-resistive barriers (WRBs) and air leakage, including:

• WRB compliance methods can include materials other than #15 felt.
• Registered design professionals or approved agencies must verify and commission air barriers when not testing
• Air barrier and air sealing details must be included on project drawings
• Air leakage testing requirements now include residential and non-residential buildings
• Performance verification is now required for buildings that are not tested
• Requirements to seal basements, slabs, and unvented crawlspaces at any penetration in the foundation or slab

Section BC 718.2.6

This New York City Building Code outlined the requirements for fireblocking within concealed spaces of exterior wall coverings, including the conditions and locations where fireblocking is required. Fireblocking must be installed within exterior wall assemblies that contain combustible components even when the wall assembly has previously passed the NFPA 285.

Assembly testing is becoming more and more critical in these new fire codes. Buildings must have a cohesive assembly designed to minimize fire risk, such as StoVentec, which is a fully tested assembly. Multiple wall claddings from various suppliers will be more heavily scrutinized in the years ahead.

The Importance of Proactive Moisture Management

Moisture accumulation within a building structure can cause problems such as water stains, ice damage, peeling paint, wood deterioration, mold, and mildew. Liquid water forms when water vapor in the building meets a surface with a temperature lower than the dew point of the air.

Whether or not the building is air and weather-tight can considerably affect thermal performance. A drafty, leaky building will undermine efforts to insulate, as heat will escape through the gaps that cause drafts and leaks.

For all these reasons and considering that water intrusion is a growing problem, the industry is pushing building owners to be more proactive in controlling moisture.

According to the E.P.A., a building’s design must include three features to control moisture. These features are:

• Controls bulk liquid water from snow, rain, etc.
• Stops a buildup of indoor humidity and water vapor migration by diffusion and airflow to minimize condensation and moisture absorption into cool surfaces and materials
• Made with moisture-resistant building materials

These features can be found in a modern rainscreen system like StoVentec^® Rainscreen^® Systems. Qualitative and quantitatively measured for rainscreen performance via AAMA 509 which tests wall assemblies against both static and dynamic air pressure with water spray simulating severe weather conditions and rates each system with classifications for water and ventilation.

An Innovative Solution that Meets Expectations and Standards

StoVentec^® Rainscreen^® Systems aim to exceed building code requirements by providing superior moisture management and resilience against severe weather, ensuring long-term building performance and durability.

StoVentec Systems are a complete, fully-tested, and code-approved high-performance ventilated Rainscreen system. This includes a best-in-class air and water-resistive barrier, robust mineral wool continuous insulation, the most installer-friendly, adjustable sub-framing system available, and StoVentec Rainscreen cladding.

Benefits of StoVentec Rainscreen include:

• High-quality air and water-resistive barriers
• Non-combustible insulation
• Adjustable sub-framing
• Accommodates a wide variety of finishes and aesthetics

System Versus Component Approach

A system approach is when you specify a complete system from one manufacturer, and the components are all designed to work together. Sto offers a complete Rainscreen System with comprehensive testing, third-party code compliance evaluations, Florida Approvals and Miami-Dade NoAs. For example, Intertek Code Compliance Research Report 0454 evaluates the StoVentec Render and Masonry Veneer Facades systems for physical properties, weather resistance, wind resistance, surface burning characteristics, fire-resistance-rated construction, and use in Types I, II, III, and IV construction against the IBC, IRC, Florida Building Codes, and California Building Codes. The report also references and incorporates the independent evaluations dedicated specifically to the various Sto air and water-resistive barrier options, the all-important last line of defense in rainscreen wall systems. Further, the evaluation is built on a quality assurance program with independent random audits of production facilities which verifies the StoVentec system components are manufactured according to strict quality controls.

Other manufacturers only offer wall components, e.g., a single element in the system, such as cladding or insulation, leaving it up to architects and contractors to determine how these various bits and pieces should all come together. The component approach presents a range of challenges.

Challenges with the Component Approach

• Components aren’t always designed to work together, resulting in design collisions
• Many materials, players, and warranties often result in no party accepting full ownership of a problem
• Achieving aesthetic goals while meeting code requirements can strain a budget
• Misalignment of metal panels due to incompatibility/improper use of facade layer with sub-structure layer

Benefits of the System Approach

• Seamlessly connects design and construction
• Fewer products and subcontractors
• Improved constructability and project delivery
• One warranty – single supplier
• Compatibility of components
• Fully tested assemblies
• Weathertight transitions due to a single AWRB

When you select a complete Rainscreen System, you should receive details from the manufacturer defining:

• Air & water-resistive barrier
• Support structure, including attachment to the substrate
• Exterior insulation
• System ventilation
• Finish cladding
• Testing & warranty information

Real-World Applications and Compliance

It’s a harsh world out there, and StoVentec is up to the challenge. Here are some highlights from a couple of projects that demonstrate the possibilities.

Zislis Residence

Location: Manhattan Beach, California, USA
Building Type: Residential
Construction Type: New

When Michael Zislis, a successful entrepreneur, hotelier and restaurateur, was ready to build a home on the California coast for his young family, he wanted the exterior to be bold. When he learned about the enhanced aesthetic value and advanced performance properties of StoVentec Glass, Zislis was immediately intrigued.

With the home’s beachside location, StoVentec Glass was the ideal product. The multiple-sized panels of StoVentec Glass in varying shades of blue provide a unique appearance for a residential home. Because the product is tempered glass, it maintains reflective properties for a dazzling, durable exterior finish. The glass-faced panels integrate with thermal insulation and an air and moisture barrier to create one complete system that delivers stunning curb appeal and optimal performance characteristics.

Read the entire case study here.

Kalamazoo Justice Center

Location: Kalamazoo, Michigan USA
Building Type: Institutional
Construction Type: New

Located in downtown Kalamazoo, MI, the Kalamazoo Justice Center appeared to be a construction challenge. The building design featured a large glass expanse on the south side of the building, a curtainwall that would maximize natural lighting for the interior spaces. That same south-facing side of the building was to include a ground-floor pre-screening lobby. For the fascia of the one-story lobby space, the architects needed a product that visually extended the aesthetic of the modern glass curtainwall.

StoVentec Glass was the perfect fit since it is an insulated glass panel rainscreen system without visible hardware, so the fascia doesn’t feel like a framed curtainwall with hardware on the top, bottom, and sides. The fascia band on the lobby entrance area features nearly 700 square feet of StoVentec^® Glass in an Ad Weiss Optiwhite™ Glass (9001W) color.

StoVentec^® provides the striking visual effect the architects desired with the added bonus of delivering on performance and durability.

Read the entire case study here.

Want to see and read more real-world examples of how our robust Rainscreen System meets building codes and delivers superior protection for today’s buildings? Explore our full Project Gallery. From the functionality inside to the finish outside, this incredible system will help you meet your thermal and moisture goals while delivering a one-of-a-kind aesthetic.

Intelligent Solutions from an Industry Leader

Sto Corp. is the world’s leading innovator in claddings, air barriers, coatings, and restoration systems. By offering advanced rainscreens, such as StoVentec^® Rainscreen^® Systems, we are helping architects and builders achieve code compliance, enhance building longevity, and reduce maintenance costs.

For more information about StoVentec or Sto Corp., please visit www.stocorp.com or call (800) 221-2397.

The post Rainscreen Systems and the Building Code appeared first on Sto Corp..

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.

The post Fireblocking Regulations on the Rise appeared first on Sto Corp..

A significant development in the evolution of building protection occurred in the 19th century during the Industrial Revolution. Construction became recognized as separate from design. Physics, mathematics, chemistry and thermodynamics were all being developed and applied to create building science as a discipline. At the same time, architecture, engineering and construction were all becoming more defined. Suddenly building protection was about much more than insulation.

A Highrise Changes the Game

Often referred to as the world’s first skyscraper, the Home Insurance Building in Chicago was erected in 1885 and stood until 1931. The building was designed by William Le Baron Jenney and weighed as much as one-third of typical masonry buildings, which concerned city officials.

According to History.com, “His revolutionary design utilized an inner skeleton of vertical columns and horizontal beams made out of steel. This was in stark contrast to earlier structures, which were supported by heavy masonry walls. Steel was not only lighter than brick, but it could carry more weight. With this new method of construction, lighter masonry walls could be “hung,” a bit like curtains, from the steel frame. As a result, the walls of the building didn’t have to be as thick, and the structure could be much higher without collapsing under its own weight. Buildings with this type of frame could also have more windows, as the steel frame supported the building’s weight and the stone or brick exterior merely acted as a “skin” to protect against weather.”

The emergence of building science led to this project, marking the building envelope’s beginning.

Science Fills in the Insulation Gaps

While insulation had improved since the days of mud and fur, it was still built on the idea that the Greeks had developed hundreds of years before. Fortunately, science and technology would also benefit this necessary building material.

One of the most significant developments was the widespread use of fiberglass insulation in the 1930s. More recently, it was the increased use of polyurethane foams for filling the cavities between walls. These more advanced products helped our homes and buildings achieve greater comfort while improving energy efficiency.

Insulation That Achieves More with Less

At Sto Corp., sustainable construction is ingrained in our company’s DNA. This commitment guides us in our decision-making and product development. Our GPS insulation is the perfect example of our continuous pursuit of greener products, representing the future of insulation. GPS (graphite polystyrene) 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%.

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 R-value. And the product itself is recyclable, making it more environmentally friendly.

For additional information on the various types of insulation offered by Sto and to compare the features and benefits of each, visit our insulation comparison web page.

Advancement in Material Science and Engineering

With each passing year, breakthroughs in materials science and technology push the boundaries of what’s possible, leading to stronger, more sustainable and more resilient buildings. Nanotechnology is enhancing construction materials with improved strength, durability and thermal conductivity. The result is layer upon layer of building protection that is more advanced than ever.

Smarter, Longer-Lasting Coatings and Finishes

At Sto^®, we have a long, proven history of developing innovative coating technologies. Now, we’ve developed a group of architectural coatings that provide more value by providing more functionality. Sto Intelligent Technology + Design™ (iQ Technology™) interweaves innovation with design to offer high-performance coatings with unique attributes based on biomimicry principles that enhance aesthetics and improve occupant comfort.

The functionality behind StoColor^® Dryonic^® and StoColor^® Lotusan^® 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. This technology is also available in StoLit Lotusan, a textured finish that captures the look of traditional plaster, brick, or limestone with self-cleaning properties.

State-of-the-Art Rainscreens

Today’s rainscreens are nothing short of marvels of modern science. They are comprised of several key structural components that work together to manage airflow and moisture effectively; these components include:

• Outer cladding material: The cladding is your building’s first line of defense. Depending on the building’s climate zone and local environment, you’ll want to choose the cladding type–fiber cement, metal panel, HPL, specialized render systems, etc.–based on the hazards present and the level of protection needed.
• Air gap or cavity: A ventilated space behind the cladding that helps manage moisture. A modern rainscreen system incorporates a larger air gap to promote drainage and drying of wall assemblies.
• Air and water-resistive barrier (AWRB): This is attached directly to the building’s frame and is the last line of defense against air leakage and moisture intrusion. The AWRB may be permeable or impermeable to water vapor, depending on the climate.
• Exterior Insulation: This outer layer of insulation is capable of handling some moisture and drying without degrading or reducing its R-value. Depending on the building owner’s thermal requirements and targets, this layer may be supplemented. Also, Energy codes require different degrees of exterior wall thermal performance.
• Venting Profiles: There are several ventilation options available to help direct moisture away from the wall surfaces and to keep out pests.

The Perfect Wall

Technology advancements have also allowed modern construction to achieve the perfect wall, a complete, engineered system that performs better and saves money over the long term. The perfect wall contains all four building enclosure control layers:

• Air Control Layer – To limit the uncontrolled flow of air through the wall assembly, reducing condensation and energy loss.
• Water Penetration Control Layer – Barrier inbound of the cladding, flashed to the exterior, designed and installed to prevent liquid water from entering the wall cavity.
• Vapor Control Layer – Vapor permeable or impermeable per designer specification, controls the flow of water vapor from areas of high to low pressure, minimizing condensation.
• Thermal Control Layer – Insulation to significantly reduce thermal bridging.

Sto offers a wide range of wall systems, from prefabricated wall panels to EIFS with drainage, plus many more. From superior performance and sustainability to inspired aesthetics, your perfect wall is just a few clicks away with the Sto^® Wall Selector.

Material Science: The Next Generation of Building Products

The pace at which material science is advancing is ever-accelerating. Lightweight cladding is the next big thing for the construction industry. With lightweight cladding, it’s no longer necessary to use heavy materials such as masonry, concrete, metal panels, precast, porcelain, or even fiber cement to achieve the look of brick, wood, concrete, or metal. The benefits of lightweight cladding include:

• Smaller carbon footprint
• On-the-wall energy performance
• Authentic aesthetics
• Simpler and safer for construction crews
• Lower energy bills
• Near limitless design freedom for architects

StoCast, one of our most exciting and popular new products, is an example of this innovative new cladding. StoCast Wood is a resin cast product that can be applied to a variety of Sto wall systems to deliver a real wood aesthetic. StoCast Brick replicates the look of traditional brick and is available in 30 standard bricks or project-specific colors, patterns and textures.

The Future of Building Protection is Here

Building protection has come a long way since the days of mud and fur. At Sto, we are proud to be a leader in innovative, sustainable building solutions that enhance aesthetic value, durability and energy efficiency, addressing the evolving needs of modern construction. We invite you to learn more about our rainscreens, coatings and finishes. For more information about Sto Corp. and our building envelope solutions, visit Stocorp.com.

The post The Evolution of Building Protection appeared first on Sto Corp..

StoVentec Render is an innovative rainscreen cladding solution that improves building performance with economical construction. This system features a ventilated cavity for effective drainage, continuous insulation for energy efficiency and sound dampening, and a unique carrier board that enables the creation of curved surfaces. With Sto’s diverse finishes, architects and designers can easily achieve their desired aesthetic. The system also comes pre-engineered, simplifying installation and saving time. As part of a comprehensive rainscreen system, StoVentec Render is tested, proven, and trusted from a single source supplier.

Finally, A Complete Rainscreen System

There are so many components to a rainscreen system that it can feel complex. But it doesn’t have to be overwhelming. StoVentec Render is unlike most rainscreen solutions. In addition to being one of the most advanced, thoroughly tested systems on the market, it can simplify life for the architect, the applicator, the general contractor, and the building owner.

The most apparent difference between StoVentec Render and other solutions is that StoVentec^® is a complete system, with all the components – including the air and water-resistive barrier, thermal insulation, sub-construction, carrier board, and a wide variety of architectural finishes, textures, shapes, and colors.

Since Sto manufactures all these components, coordination and construction are easier. After all, you are dealing with one company instead of four or five different suppliers. Plus, StoVentec Render is covered by a single 10-year system warranty.

StoVentec Render: An Ideal Blend of Art, Economics and Performance

StoVentec Render combines rainscreen technology with Sto’s well-known, tested, and trusted line of architectural finishes, including StoCast resin cast shapes and unique StoSignature options. Our beautiful finishes allow you to create a smooth, textured, or patterned surface.

These finishes, which also have waterproofing and fire-rating qualities, are applied directly onto the StoVentec Carrier Board- a lightweight, flexible, and impact-resistant glass composite board that can span up to 82 feet without architectural breaks.

The combination of the StoVentec Carrier Board and StoVentro sub-construction allows for the creation of unique curved surfaces, removing the barriers to the artistry of form and shape.

Designing your entire facade is easy with StoColor. The StoColor System is a unique planning tool for using color in architecture. It can be used with StoVentec to create customizable aesthetics. By integrating StoColor finishes and StoCast, you can make a one-of-a-kind exterior design.

To explore the possibilities, see the StoVentec Render Design Guide.

StoCast Looks So Real, It’s Unreal

Another design possibility is StoCast. The StoCast products are flexible, prefabricated resin-cast shapes that celebrate traditional facade textures while integrating enhanced performance functionality.

StoCast Wood features resin-cast wood grain planks that create an authentic wood appearance. Achieving the desired finish is easy when using any of the 25 standard colors available in StoColor Wood Stain.

Free of both dust and silica, StoCast Brick offers 30 standard bricks or project-specific colors, patterns, and textures. StoCast Brick is ideal when the project calls for a traditional or customized “classic” brick look.

Both products are more lightweight and durable than their traditional counterparts, minimizing time and energy in transportation and installation and allowing for greater conservation of natural material resources.

A Durable, Sustainable Solution

StoVentec Render is a high-quality system designed for durability. All system components working together will improve building performance significantly, saving short-term and long-term energy. StoVentec Render Rainscreen walls perform well because they effectively manage moisture by preventing most precipitation from entering the wall and allowing convective air movement within the air gap to promote drying.

All of this depends on an effective air barrier to keep outdoor air out and indoor air in. Sto AirSeal fluid-applied water-resistive barrier is vapor permeable, offers 500% elongation, meets the requirements of ASTM C1305 Low-Temperature Crack Bridging Test, and provides building code compliance confirmed by ICC-ESR 1233. It is suitable for all substrates, from porous lightweight CMU to gypsum and wood-based sheathing.

Insulation is also a critical component. StoVentec Render uses mineral wool, an effective, noncombustible insulation that can reduce sound by up to 10db.

Tested and Proven

Since the early 2000s, millions of square feet of StoVentec Rainscreen wall systems have been installed on countless buildings across Europe. What’s more, StoVentec Render is tested and proven. This outstanding system meets or exceeds all the following building codes and requirements:

• NFP285 (fire testing)
• ASTM E330 (structural performance)
• AAMA 509 (testing standard for drained and back-ventilated rainscreen cladding related to the interaction of the AWRB airtightness and the resistance to water penetration through the wall cladding system)
• Miami-Dade NOA for large and small missile impact resistance

What Does Pre-Engineered Mean?

Pre-engineered means you provide us with your design pressure requirements, and we deliver an easy-to-install, high-performance StoVentec Render rainscreen system. The pre-engineered installation design includes options for high, medium, and low wind-pressure applications, eliminating the need for extensive engineering. Plus, you don’t have to worry about piecing together a solution and then figuring out how to make all the components work together. Our system is designed to work cohesively as a single unit. We even have a quick-start guide that includes all the essential information you’ll need from start to finish. Pre-engineered makes the project easier for everyone.

A Leader in Innovative, Sustainable Building Solutions

At Sto, we are focused on addressing the evolving needs of modern construction. We are committed to creating sustainable solutions that perform at the highest level. StoVentec Render is precisely what you would expect from the leader in innovative, sustainable building solutions. To learn more about StoVentec Render and StoVentec Rainscreen Systems, visit https://www.stocorp.com/stoventec-rainscreens-support/. To place an order, visit our website.

The post A Rainscreen System Unlike Any Other appeared first on Sto Corp..

Buildings are imperfect. Whether it’s new construction or an existing building, they have crooked exterior walls/substrates or are smothered in layers of coating from previous renovations. While new buildings have the potential to have straight exterior walls, the requirements of those walls in the future are uncertain. How is the future uncertain? There are shifting weather patterns and more extreme weather events that buildings must endure. Building codes also evolve. New design trends can impact exterior walls as well. These things can force cladding changes that must be installed over the sub-construction. And that’s a few reasons why an adjustable sub-construction is a smart decision. We’ll get to the others, but first, let’s talk about what this future-friendly system looks like.

How Does an Adjustable Sub-Construction System Work

Imagine a comprehensive system of brackets, rails, fasteners, and other accessories that work together to create a framing system that can be adjusted as needed to make a perfectly flat, square surface to install the facade cladding. At Sto, that system is StoVentro™. Part of our innovative StoVentec®Rainscreen® System, StoVentro absorbs both the wind loads and dead loads present on the facade. Alongside structural suitability, the design of the sub-construction incorporates corrosion resistance and a reduction in thermal bridging while also being quick and easy to install.

Installation Made Simple

The good news for general contractors: StoVentro is easy to install in three straightforward steps.

Align Brackets

First, you’ll want to align brackets to proper (loading design-specific) horizontal and vertical spacings. Anchor to structure with substrate-appropriate fasteners.

Align Vertical Profiles (T’s and L’s)

If cutting the rails, be sure to deburr the edges. Use clamps to temporarily secure vertical rails to the brackets. Install the first and last profiles on each facade plane, then use a horizontal reference line to align the remaining profiles. Or use a laser or spirit level to align the exterior axes (front flanges of the T and L profiles).

Fasten Profiles

Use StoVentro sub-construction screws to fasten the profiles to the brackets. Utilize oblong fastener slots on the small brackets for sliding point fastening and the circular holes on the large brackets for fixed point fastening. This allows the profiles to thermally expand and contract.

Now that the sub-construction is in (wow, that was easy!), let’s talk about the cladding.

Adaptable to Different Material Types and Thicknesses

We’ve mentioned how an adjustable sub-construction can turn imperfect walls into perfectly square walls. But what about the cladding that will, inevitably, sit atop this sub-construction? That system of brackets, rails, and fasteners all make for a very adaptable, flexible system. That means no matter what external cladding materials you use and how thick they may be, the sub-construction can accommodate it. That’s one of the primary purposes of the system. Who knows what future building design will look like? With an adaptable sub-construction system, you will be ready for what’s next.

Built for Design Flexibility and Originality

If you are building over an old wall without a sub-construction system, your cladding options are limited. But with a modern sub-construction system, the possibilities are unlimited. The StoVentro system serves as the foundation for all StoVentec systems, allowing for the use of glass, a wide variety of Sto architectural finishes, and masonry veneer. It is so adaptable that you can use virtually any cladding system, even one made by other manufacturers. The design possibilities are endless!

Improved Building Performance

We’ve covered several benefits of a sub-construction system, but there are a few significant benefits we haven’t yet covered. One critical benefit to building performance is that the StoVentro system allows for ventilation and drainage. Another advantage of an adjustable sub-construction system is that it can improve the thermal and acoustic performance of the building envelope. By incorporating an adjustable system, you can address any issues quickly and efficiently, minimizing “downtime” and ensuring consistent, maximum performance. Plus, the combination of the rainscreen and cladding systems used on top of the StoVentro system can help maximize energy efficiency by making space for exterior thermal insulation.

A Leader in Innovative, Sustainable Building Solutions

At Sto, we are focused on addressing the evolving needs of modern construction. We are committed to creating solutions that perform at the highest level and are sustainable. The StoVentro system is one of our most innovative systems. It is an easily installed, adjustable sub-construction that can compensate for existing walls or substrates that aren’t straight and make using multiple materials on the facade easier. To learn more about StoVentro, visit https://www.stocorp.com/sto_systems/stoventro/. Ready to explore designs? Download our design guide or our installation guide.

The post The Benefits of Adjustable Sub-Construction appeared first on Sto Corp..

Which fabricated glass product, toughened glass or tempered glass, offers the most benefits over annealed (regular) glass? The answer is neither – tempered glass and toughened glass are different in name alone, and they provide homes, businesses, and institutions with the following benefits and features:

Strength

The manufacturing of tempered and toughened glass involves processing glass under controlled thermal or chemical treatments to increase its strength. Heat treatment can make the glass six times stronger and more impact, wind, and weather resistant than untreated glass – for a safer consumer product. In addition, the code of federal regulations (Consumer Product Safety Commission) cites ANSI Z97.1, which crosslinks to ASTM C1048, mandating that fully tempered glass (Kind FT) achieve a surface compression of 10,000 lbs. in2 (psi) or more, which protects it from breakage up to 24,000 psi. In contrast, annealed glass will break at only 6,000 psi.

Safety

Increasing the compressive stresses on the glass’s surface creates tension in the interior. If the glass breaks, the mechanical stresses cause the glass to crumble into small, smoothed-edged granules that are much less dangerous than regular glass that splinters into jagged shards of plate glass.

U.V. Protection

Tempered (toughened) glass blocks nearly all of the sun’s UVB rays; however only a portion of UVA rays. 

Thermal Resistant

Toughened glass can withstand high temperatures or significant temperature differences (thermal shock) without damage compared to regular glass. 

Design Versatility

Designers can use versatile tempered glass for many applications, including:

• Balusters, escalators, handrails, staircases, etc.
• Partition for airports, offices, resorts, homes, etc.
• Sliding doors and windows
• Decorative panels in interior design
• A building’s facade

Location: Shoreview, Minnesota USA
Building Type: Entertainment & Cultural
System Type: Rainscreen
Systems & Products: StoVentec Glass
Construction Type: Renovation
Construction Method: Field-Built
Case Study: Click Here

Will Tempered Glass Break?

Thermal stress can cause tempered (toughened) glass to break during installation. In addition, a chipped edge can develop into a more extensive break.

How to Make Toughened (Tempered) Glass?

Manufacturers transform annealed (conventional) glass into toughened (tempered) glass by heat or chemical treatments.

Heat Treatment

• Before tempering, fabricators cut the annealed glass to the desired size.

NOTE:  Etching or edging tempered glass will reduce its strength, which can potentially lead to product failure. 

• Fabricators examine the glass for imperfections that could lead to breakage during tempering. 
• Next, the glass moves through a tempering oven that heats the regular glass to a uniform temperature of 600 to 700°C (1112 to 1292 °F) – the industry standard is 620 °C (1148 °F).
• After heating, the glass is placed in an annealing lehr (long kiln), where it undergoes a high-pressure cooling procedure (quenching) in which high-pressure air blasts the glass from an array of nozzles in various positions, cooling it to 60 °C (140 °F). Quenching cools the glass’s outer surface faster than its center.
• As the center cools, it pulls away from the outer surface, which creates tension in the center, compresses the outer surface, and strengthens the tempered glass.

Chemical Treatment

Fabricators use various chemical exchange ions on the surface of the glass to create compression. However, this method produces less strength than the heat treatment.  It is also more costly than heat treatments.

Identifying Toughened or Tempered Glass

A stamp in the corner of the sheet of glass identifies the glass as tempered (toughened). The identifier will show the manufacturer’s name and the CPSC (Consumer Product Safety Commission) standards.

To classify as tempered glass, it must achieve a minimum compressive stress on its surface of 69 MPa (10,000 psi). To be considered a safety glass, its compressive stress on its surface must exceed 100 Mpa (15,000 psi), which makes it safe for high-pressure and explosion-proof applications. 

StoVentec® Glass Rainscreen® Systems

The StoVentec® Glass Rainscreen® System is a straightforward-to-install toughened (tempered) glass rainscreen opaque architecture system that helps ensure a successful, long-lasting wall assembly of thermally-efficient insulation that limits damaging condensation and lowers the cost of heating and air-conditioning. At the same time, the tempered glass structural frame improves safety against high impact, wind, and fire.

Location: Lake Anna, Virginia USA
Building Type: Residential
System Type: Rainscreen
Systems & Products: StoVentec Glass
Construction Type: New
Construction Method: Field-Built
Case Study: Click Here

StoVentec® Glass Rainscreen® System Components

The StoVentec® Glass Rainscreen® System consists of toughened (tempered) glass-faced composite panels (outer layer) to keep the weather out. Mounting brackets between the panels produce a gap that permits air circulation (ventilation), moisture evaporation, and drainage. Thermal insulation is added within the rainscreen cavity, and a Water Resistive Barrier (WRB) is applied on the exterior wall surface.

Decorative Glass Panel

The durable and decorative toughened glass panel can withstand the weather, and it has four to five times more strength than regular glass. If broken, the toughened glass will break into smaller, safer pieces and stay bonded to the backing board.

Support Structure

The aluminum rails and galvanized or stainless steel brackets carry the panel system and resist wind loads. Aluminum provides a greater strength-to-weight ratio (at less cost), while stainless steel enhances thermal performance. The thermal conductivity of stainless steel is 17 W/m K versus aluminum’s 210 W/m K. Combining aluminum rails and galvanized or stainless steel brackets maximizes performance and cost. The number of brackets depends on the wind loads, the system’s depth, and the substrate’s properties. 

Insulation

Insulation (typically made of mineral fibers) insulates the substrate and surrounds the brackets. The insulation minimizes condensation (to eliminate structurally damaging and unhealthy mold), lessens temperature fluctuations, and helps to keep the wall warm.

Continuous Air and Water-Resistive Barrier

A continuous air and water-resistive barrier stops moisture from infiltrating the structural wall. The 2021 IBC mandates a weather-resistant exterior wall envelope for all structures, with a few exceptions like concrete and masonry walls.

However, leaks can occur due to improper installation or deterioration that permits water to flow through tiny openings by gravity, surface tension, capillarity, air pressure differences, and momentum (kinetic energy). A rainscreen cladding system will limit water intrusion by providing a drainage plane.

Improved Safety 

Blast-Tested

The strength and integrity of the StoVentec® Glass Rainscreen® System can pass rigorous blast tests, which makes it suitable for public spaces like airports and railway stations.

Wind Resistance

Properly installed galvanized or stainless-steel wall brackets and aluminum horizontal and vertical rails create the sub-construction that form a solid structural link between the supporting wall construction and the facade. This structural design absorbs dead loads and wind and transfers them to the supportive wall construction.

Fire Breaks

Rainscreen installation must comply with fire-resistance testing mandates, like the ASTM E119 and NFPA 285 standards.

Why Choose StoVentec® Glass Rainscreen® Systems?

Robust StoVentec® Glass Rainscreen® Systems contribute significantly towards energy-efficient, safe, low maintenance, and comfortable buildings with healthy I.E.Q. 

The StoVentec® Glass Rainscreen® consists of toughened (tempered) glass-faced composite panels (outer layer) that can enhance a building’s safety, strength, U.V. protection, thermal resistance, and design versatility. 

Zislis Residence

California entrepreneur Michael Zislis chose StoVentec® Rainscreen® System in Pastel Blue, Light Blue and Azure Blue to make a bold, eye-catching statement for his family’s home. 

Atlanta Plant Tank Farm Wall StoVentec Glass Rainscreen System

Download the StoVentec® Glass Design Guide & Detail Booklet today for more on tempered or toughened glass cladding solutions for buildings.

The post Breaking Down the Differences: Tempered Glass vs. Toughened Glass appeared first on Sto Corp..

Adequate moisture management will fortify the structure’s long-term integrity and ensure good indoor air quality.

Rainscreens Control Moisture Within a Wall System

According to the E.P.A., a building’s design must include three features to control moisture. Fortunately, a quality rainscreen system, like StoVentec® Rainscreen® Systems, provides all these features:

1. Controls bulk liquid water from snow, rain, etc.
2. Stops a buildup of indoor humidity and water vapor migration by diffusion and airflow to minimize condensation and moisture absorption into cool surfaces and materials
3. Made with moisture-resistant building materials

Are Rainscreen Systems Appropriate for My Climate?

Building codes may require a rainscreen, especially in regions that experience heavy rain. Designing structures according to current building codes and standards provides some assurance that the building will stand up to severe weather events. However, building code compliance alone does not guarantee protection since the codes are typically based on historical climate and weather data, which may not consider the increasing hazards of recent decades.

Therefore, regardless of the location and code mandates, installing a rainscreen, like StoVentec® Rainscreen® Systems, will provide superior moisture protection to building envelopes, particularly against catastrophic events.

StoVentec® Rainscreen for Render Facades

StoVentec Render proved to be the ideal solution for the facade renovation of the Omaha Henry Doorly Zoo & Aquarium Dome and Theater.

Climate Change Escalating Severe Weather Events

Global temperatures climbed to record levels over the last two decades, intensifying worldwide water-related disasters, including lengthy droughts and severe flooding, according to a study from NASA scientists.

For example, this year, atmospheric rivers in California brought severe-extensive rainfall and snow, which caused significant flooding, mudslides, unusable roads, and collapsed bridges. The same region also experienced extreme drought in the past several years. These combined events put thousands of homes and buildings at high risk of flooding.

To protect against increasingly severe weather events, the building community must provide adequate waterproofing components in all future new and remedial construction.

2021 Building Code Changes for Water-Resistive Barriers

Evolving building codes aim to create more resilient buildings. For instance,
the 2021 International Building Code updated water-resistive barrier requirements for cementitious barriers, like exterior plaster (stucco), that continually get wet and dry throughout its lifespan, and made water drainage vital. The need for a water-resistive barrier typically depends on the project’s climate zone or geographical location.

The 2021 International Building Code (Section 2510.6) updates to water resistive barriers (W.R.B.) section for stucco over wood-based sheathing includes:

For Climate Zones A (Moist) and C (Marine):

• Option 1: 3/16″ (4.8mm) drainage cavity over the W.R.B. when applying stucco on wood-based sheathings like O.S.B. and plywood.
• Option 2: Minimum drainage efficiency of 90 percent as measured by ASTM E2273 or Annex A2 of ASTM E2925

StoCorp. Systems Solution for Climate Zones A and C

Fully tested StoVentec® Ventilated Rainscreen® Cladding Systems are an innovative solution for code compliance in climate zones A and C. An evaluation by Intertek, a respected, independent, and accredited agency, found that StoVentec Render and StoVentec for masonry veneer facades are fully code-compliant for water, wind, and fire resistance and compliant with the following codes:

• 2021 and 2018 International Building Code® (IBC®)
• 2021 and 2018 International Residential Code® (IRC®)
• 2020 Florida Building Code (FBC) (see Section 9)
• 2019 California Building Code (CBC) (see Section 9)
• 2020 Los Angeles Building Code (LABC) (see Section 9)

StoVentec® Rainscreen® Systems

StoVentec® Systems offers a completely ventilated Rainscreen® system with vast design possibilities. Our Rainscreen® systems include:

• A high-quality air and water-resistive barrier
• Non-combustible mineral wool continuous insulation (CI)
• An adjustable sub-framing system
• StoVentec® Rainscreen® cladding

In addition, lightweight and energy-efficient, StoVentec® Rainscreen® Systems reduce the cost of heating and air-conditioning and minimize condensation that can cause damaging and unhealthy mold.

StoVentec® Rainscreen® comes in Render, Glass, and Masonry veneer finishes with endless aesthetic choices – including brick, wood, and traditional textured finishes – that achieve beautiful and distinct looks for building Rainscreen® facades combined with Sto’s other highly-engineered performance features.

The StoVentro™ Rainscreen® sub-construction is a system for uneven substrates that provides flush transitions between different claddings.

Applying Sto Corp Rainscreen® Systems in All Climate Zones and Regions

Worldwide, the building industry must consider methods and products that help protect against weather-related hazards, particularly when it comes to moisture management, even in locations with lower levels of flood, hurricane, atmospheric river, etc. risks.

The StoVentec® Rainscreen® System provides architects with endless aesthetic choices to achieve beautiful and distinct looks for building rainscreen facades combined with Sto’s other highly-engineered performance features. The StoVentro™ Rainscreen® sub-construction is a system for uneven substrates that provides flush transitions between different claddings.

Builders will save money and time during construction by choosing a simple, fast-to-install, complete rainscreen cladding system over traditional building techniques. To learn more about rainscreen systems, download Understanding Rainscreen Walls here.

Contact us today for more information on choosing Rainscreen® systems for your climate.

The post Are Rainscreen Systems Appropriate in My Climate? 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..

However, complete external render cladding systems (like the StoVentec® Render Rainscreen® wall assembly) provide all the exterior wall system components (air and water-resistive barrier, insulation, sub-construction, and rendered facade panel) into one straightforward-to-install system, which will save builders money and time.

The StoVentec® Render complete Rainscreen® cladding system produces superior air and water resistance, excellent thermal performance, wind, fire, and impact protection, and attractive render aesthetics. Each component contributes to the building’s long-term integrity and indoor comfort, safety, and air quality.

What is Exterior Rendering?

Installers apply a render coating to a facade to create a smooth or textured surface, in order to improve a building’s aesthetics and extend the exterior wall’s lifespan.

Types of Render Finish

The success of a rendering project depends on choosing a suitable render material:

Lime Render

Breathable lime render expands and contracts without damage, and is particularly suited to older buildings that cannot use cement render.

Cement Render

Easy-to-apply, quick curing, and durable cement render prevents water damage and provides walls with added strength. However, its rigidity makes it prone to cracking, so installers typically avoid its use on older structures.

Acrylic Render

Acrylic render sets in just 24 hours, faster than other renders. Various aggregate sizes allow for a variety of aesthetic ranging from smooth to coarse

Monocouche Render

Installers often use easy-to-use, single-layer monocouche rendering on new houses and buildings.

Polymer Render

Installers often use polymer render, which allows the substrate to breathe on most wooden or brick buildings.

Other tips for successfully installing render include:

• Mix the render with room-temperature water.
• Do not apply in extremely hot weather because the render mix will set in too fast, and lead to cracks.
• Do not apply in frigid weather because it will cause the render mix to slide down, and make it messy.
• Mild-cloudy and rain-free days are the best days for using render.

Six Benefits of External Rendering

Properly applied external rendering can provide a building with several long-lasting, significant benefits. However, successful rendering depends on thoughtfully designing and hiring a reputable and skilled installer.

1. Protects a Property Against Rain and Wind

Exterior wall rendering is the first defense against harsh weather and moisture infiltration in a building’s envelope. It can also protect against mold and algae growth.

2. Enhances a Building’s Appearance

External render cladding creates a modern look of luxury. It can also hide unattractive-old brickwork, and give a building a crisp new appearance. Furthermore, rendering allows architects to combine additions to an existing building.

3. Adds Value to a Property

Render facades enhance a building’s curb appeal, which adds value to the property.

4. Cost-Effective Rendering

External rendering offers builders a cost-effective cladding solution. However, it depends on the render type, surface preparation, project location, project size, and the tradesman’s experience. To be cost effective, the climate zone and exposure must be taken into consideration. Opting for a higher end render can save money on the long run with superior durability and fading resistance.

5. Breathable Renders

The breathability of silicon and mineral render facades allows moisture generated from the indoors to evaporate to the outside, which helps to minimize condensation within the wall cavity.

6. Low-Maintenance

Low-maintenance, UV-stable, pre-colored renders can last up to 10 years depending on the climate zone and exposure. Using a super hydrophobic render will also reduce maintenance with its self cleaning properties. In addition, applying the render to a flexible-thin fiberglass mesh base layer allows it to move with the building, which makes it less prone to cracking.

StoVentec® for Render Facades

Queensbridge Quarter combined StoVentec® Render and Glass systems to deliver a stunning multi-family building in London.

The traditional method of installing render protects the exterior wall’s durability; however, on its own, it does not improve the building envelope’s thermal performance.

Fortunately, the ®StoVentec® Render Rainscreen® wall system is a complete, fully-tested, code-approved, back-ventilated wall system that provides a superior air and water-resistive barrier and strong mineral wool continuous insulation (CI).

In addition, the drained and back-ventilated StoVentec® Render rainscreen wall assembly offers the aesthetics of Stolit® Lotusan®, Sto textured finish, self-cleaning textured finish, and StoCast prefabricated resin cast shapes.

StoVentec® Rainscreen® Systems

StoVentec® Render Rainscreen® Systems are a complete, fully-tested, and code-approved, ventilated system with extensive design options. Sto’s Rainscreen® systems include a water and air-resistive barrier, an adjustable sub-framing system, non-combustible mineral wool continuous insulation (CI), and our high-quality StoVentec® Rainscreen® cladding. In addition, the lightweight and energy-efficient StoVentec® Rainscreen® Systems reduce heating and air-conditioning costs and limit condensation that can cause unhealthy and damaging rot and mold.

The back-ventilated and drained StoVentec® Render Rainscreen® wall assembly provides the aesthetics of Sto textured finish, self-cleaning textured finish, and StoCast prefabricated resin cast shapes.

1. Air and Water-resistive Barrier – Wall Membrane: Sto AirSeal®

2. Air and Water-resistive Barrier – Sheathing Joints and Corners: Sto RapidGuard®

3. Air and Water-resistive Barrier – Rough Opening Protection: Sto RapidGuard®

4. Air and Water-resistive Barrier – Flashing and Penetration: Sto RapidGuard®

5. Insulation: Owens Corning Thermafiber® Rainbarrier® 45

6. Sub-construction: StoVentro® Subconstruction

7. Carrier Board: StoVentec® Carrier Board A+

8. Base Coat: StoArmat Classic Plus

9. Reinforcing Mesh: Sto Mesh

10. Primer: StoPrime® Sand

11. Textured Finish: Stolit Lotusan 1.5

Alternatives

Stolit 1.5
Stolit Lotusan Freeform
Sto Essence Medium Sand Finish
Sto Essence Swirl Finish
Stolit Freeform

Click here to see all Sto finishes for StoVentec® Render.

Alternatives to Rendering – StoVentec® Render Rainscreen® Systems

StoVentec® Render Rainscreen® systems are a superior solution to beautiful render cladding. StoVentec® Render Rainscreen® produces energy-efficient, sustainable, healthy, comfortable, long-lasting exterior walls. They are complete, thoroughly tested, code-approved, back-ventilated systems that offer:

• A superior air and moisture barrier
• Strong mineral wool CI
• Straightforward installation with an adjustable sub-framing system
• Sto’s high-performing StoVentec® Render Rainscreen® cladding options

In addition to rendering finishes, StoVentec® Rainscreen® systems are also available in glass and masonry veneer, which provides building owners and architects an expansive range of aesthetic options for rainscreen facades combined with Sto’s other highly-engineered components.
The StoVentro™ Rainscreen® sub-construction has a system for uneven substrates that furnishes flush transitions between different rainscreen claddings.

Contact Sto today for more on our superior alternative to traditional rendering facade systems – the StoVentec® Render Rainscreen® systems.

The post The Art of Exterior Design: A Guide to External Render Cladding Systems appeared first on Sto Corp..

Rainscreen and curtain wall construction requires experienced and knowledgeable subcontractors to ensure the project’s safety and success – often a time-consuming, labor-intensive task.

Fortunately, builders and architects can lessen the construction time, labor needs, and complexity of traditional glass cladding by utilizing a complete glass cladding rainscreen system, like StoVentec® Rainscreen® systems. StoVentec® Rainscreen® systems provide all the exterior wall system components (air and water-resistive barrier, insulation, sub-construction, and facade panel) into one easy-to-install system – to save both money and time.

Zislis Residence: A successful California entrepreneur chose the StoVentec® Rainscreen® System to create an impressive, eye-catching home for his family.

Rainscreen vs. Curtain Wall

Builders can choose from two types of glass claddings: rainscreen or curtain walls. Both systems strive, to varying success, to provide construction and maintenance benefits and help improve a structure’s sustainability and indoor environmental quality (IEQ). However, rainscreens provide several benefits over curtain walls: more energy efficiency and less need for maintenance.

Curtain Walls

Non-structural curtain walls offer an aesthetically pleasing facade for a building’s wall system. Builders and architects often use curtain walls in multi-story developments. In addition, manufacturers offer curtain walls in prefabricated systems or more costly specialized custom wall assemblies.

A curtain wall involves fixing glazed or opaque infill panels to lightweight aluminum frames attached to the building’s frame, to create the look of floor-to-ceiling windows. Curtain walls don’t support the weight of a roof or floor’s weight—instead, wind resistance and gravity loads transfer from the surface to the building’s floor line.

Curtain walls offer several functions that protect the wall system:

• Lightweight curtain walls allow natural light to infiltrate a building.
• Curtain walls prevent moisture and air infiltration into a building.
• Curtain walls act as a fire stop, to prevent or slow fire spread between the building’s floor.

Unfortunately, curtain walls can create several issues for the contractor and building owner.

• Low Efficiency: Curtain walls can tremendously diminish the building envelope’s energy efficiency. As a result, architects must adjust the entire envelope’s (e.g., roof, foundation) design to compensate for the energy and carbon loss through the clear glass wall cladding.
• Complex Installation: The curtain wall’s success depends on a qualified building team to ensure the correct installation.
  • Builders must carefully integrate the curtain walls with adjacent structural components like the wall, facades, and roof details to prevent significant problems from water and air leaks and falling trim covers.
  • Curtain walls utilizing the stick system take a tremendous amount of time to assemble.
• High Maintenance: The curtain wall’s perimeter requires sealant to keep out moisture and wind. Buildings and homeowners must replace the sealant every ten years.

Rainscreens

A rainscreen includes a ventilation gap to the building’s exterior of the water-resistive barrier. The gap provides a space for drainage and drying to protect the wall system from structurally and unhealthy damaging mold.

A high-performing rainscreen includes:

• Flashings at penetrations and vulnerable spaces
• Non-combustible, continuous insulation
• A water-resistive barrier (WRB)
• An air space between the siding’s back and WRB

In addition, building codes may mandate a rainscreen, particularly in heavy rain locations.

The rainscreen also offers various functions that protect the wall system:

• The rainscreen protects the wall’s interior from the sun rays, air pressure (wind) variations, and other extreme weather conditions.
• A rainscreen protects the exterior walls from snow, rain, and other bulk liquid water.
• Rainscreens provide superior thermal performance and wind, impact, and fire protection. All features contribute to the glass facade’s long-term integrity and the occupants’ air quality, comfort, and safety.
• Rainsceens prevent indoor humidity and vapor migration accumulation by diffusion and airflow – limiting condensation and moisture absorption into cool surfaces.
• The ventilated rainscreen increases a wall’s capacity to dry, to prevent it from infiltrating the building envelope.
• Ventilated StoVentec® Glass Facade Rainscreen® systems lessen the structural movements of the building, and increase its life expectancy with nearly zero maintenance costs.

Downside of Rainscreens

Labor-intensive and costly rainscreens require experienced and knowledgeable subcontractors to ensure the project’s safety and success.

Solution: Contractors will save time and money by selecting a fast-to-install, straightforward, complete rainscreen facade system over traditional building methods, like StoVentec® Rainscreen® systems. StoVentec™ Rainscreen® systems provide all the exterior wall system components to save time and money.

StoVentec® for Glass Facades

Robust and stable StoVentec® Glass Rainscreen® systems contribute significantly towards energy-efficient, safe, low-maintenance, and comfortable buildings with excellent IEQ. StoVentec® Glass Rainscreen® systems also offer extensive design flexibility, with many shape, texture, color, and material choices to fit any architectural and aesthetic need.

The StoVentec® Glass Rainscreen® includes glass-faced composite panels (outer layer) to keep out outdoor elements, like rain and snow. Mounting brackets between the panels create a gap that allows drainage, air circulation (ventilation), and moisture evaporation. In addition, thermal insulation is installed over a weather-resistive barrier that is applied over the substrate.

Sto’s straightforward-to-install glass Rainscreen® system ensures a long-lasting wall assembly that provides thermally-efficient insulation that minimizes damaging condensation and reduces heating and air-conditioning expenses. The glass facade’s structural frame also improves safety against fire, wind, and high impact.

The open joint drained and back-ventilated StoVentec® Glass Rainscreen® wall system provides superior weather and air tightness with excellent fire protection and thermal performance. A single source system combines continuous air and water-resistive barrier and non-combustible continuous exterior insulation with StoVentro™ sub-construction and StoVentec® Glass Panel to create an advanced high-performance wall assembly.

High-performing glass facade buildings, like those built with StoVentec® Glass, offer:

• Thermal insulation for enhanced building energy efficiency
• Durability with weather resistance
• Enhanced safety with fire, wind, and blast resistance
• Superior Indoor environmental quality
• Support structure for glass panels

Why Choose StoVentec® Rainscreen® Systems?

StoVentec® Rainscreen® systems produce a sustainable, energy-efficient, comfortable, and healthy IEQ for residential, commercial, and institutional exterior and interior wall construction. They offer a fully texted, complete, back-ventilated, and code-compliant system that provides an excellent air and water-resistive barrier, strong/durable mineral wool CI, straightforward installation with an adjustable sub-framing system, and our high-performing StoVentec® Rainscreen® cladding options.

StoVentec® Rainscreen® (available in glass, render, and masonry veneer finishes) provides architects and designers a wide range of aesthetic choices to achieve distinctive looks for constructing Rainscreen® facades combined with Sto’s other highly-engineered performance components.

Don’t hesitate to reach out to an experienced StoVentec specialist at (800) 221-2397 for more on rainscreens vs. curtain walls. Additional information on rainscreens can be found by downloading one of these articles: Understanding Rainscreen Walls or Rising Trends in Ventilated Rainscreen.

The post The Difference Between Rainscreens vs. Curtain Walls appeared first on Sto Corp..

High-performing glass facade buildings, like those built with StoVentec® Glass, offer:

• Durability with weather resistance and enhanced safety with wind, fire, and blast resistance
• Thermal insulation for improved building energy efficiency
• Excellent Indoor environmental quality (IEQ)

Conductive Education Centre, Munich, Germany

RPM Architects designed the Conductive Education Centre with stunning, colorful glass facades that uniquely incorporate a StoVentec® Glass Rainscreen® system.

What is a Glass Facade?

Glass facade details include the different materials used to cover a building’s exterior that protect the exterior and frame and also enhance its aesthetic attractiveness. An exterior glass facade serves many functions:

• Protects the building from external conditions
• Creates an external facade with glass panes
• Furnishes security and privacy
• Limits the transmission of sound
• Provides thermal insulation
• Reduces the spread of fire
• Provides openings for ventilation, access, and daylight

What Are the Advantages of Glass Facades?

Manufacturers can use several products to construct facades (metal, plywood, plastic, natural stone, and glass). However, only glass facades give architects vast design versatility to create distinct, unique, and stunning buildings. It also provides significant construction and maintenance advantages and helps enhance a structure’s IEQ and sustainability.

Aesthetic Benefits

• Produces a durable, exquisite, and functional design with textured glass through glass fusing
• Creates modern, aesthetically pleasing exteriors with eye-catching and unique designs, dazzling colors, textures, and shapes.
• Provides further design flexibility with translucency or transparency

IEQ Benefits

• Offers significant sound insulation to improve occupants’ productivity and comfort
• Enhances indoor air quality

Sustainable Benefits

• Provides thermal insulation, which lessens energy use and lowers the loads on the HVAC system. This in turn lowers operating expenses of a building as you don’t have as many heating/cooling demands.
• Impact-resistant glass facades further enhance a building’s durability
• Protects a building from the elements, which improves its durability and longevity

Construction Benefits

• Doesn’t increase a structure’s dead load, which makes glass facades ideal for high-rise steel structures
• Speeds up the building process with fast and easy-to-install prefabricated panels, unlike other facade materials which may require a specific curing time

Maintenance Benefits

• Glossy and smooth surface that cleans easily in wet and dry environments
• Rust-resistance that doesn’t react when exposed to oxygen and moisture, unlike rust-prone steel
• Resists the effects of sun, rain, and wind without losing its appearance or integrity
• Bird-safe

Types of Glass Facades?

Architects and builders can typically choose between curtain walls and rainscreen glass facades.

Curtain Walls

Curtain walls are a non-structural, aesthetically pleasing facade system for a structure’s wall assembly, often used in multi-story developments. Manufacturers offer curtain walls in prefabricated systems or more expensive specialized custom wall systems.

A curtain wall involves fixing opaque or glazed infill panels to lightweight aluminum frames that are attached to the building skeleton. It creates the look of floor-to-ceiling windows.

The success of a curtain wall depends on a qualified building team to ensure proper installation. In addition, builders must carefully integrate the curtain walls with adjacent structural components like roofs, wall facades, and wall details to prevent significant problems from air and water leaks and falling trim covers.

One big disadvantage of curtain walls is a greatly reduced energy efficiency. This forces designers to have to make adjustments in other parts of the building design, such as the roof, to make up for high amounts of energy and carbon loss through the clear glass.

Rainscreens

Palma Aquarium, Palma de Mallorca, Spain

Architects designed the Palma Aquarium with StoVentec® Glass Rainscreen® to create the impression of a living organism.

A rainscreen acts as a ventilation gap to the exterior of the water-resistive barrier. The gap creates a space for drainage and drying to protect the wall from unhealthy and structurally damaging mold. The rainscreen also furnishes several functions that protect the wall assembly:

• Rainscreens provide superior thermal performance and wind, impact, and fire protection. All features contribute to the glass facade’s long-term integrity and the occupants’ air quality, comfort, and safety.
• The rainscreen protects the wall’s interior from the sun rays, air pressure (wind) variations, and other extreme weather conditions.
• A rainscreen protects the exterior walls from snow, rain, and other bulk liquid water.
• The ventilated rainscreen increases a wall’s capacity to dry, stopping it from infiltrating the building envelope.
• Rainsceens prevent indoor humidity and vapor migration accumulation by diffusion and airflow – limiting condensation and moisture absorption into cool surfaces.

A high-quality rainscreen includes the following:

• A water-resistive barrier (WRB)
• Non-combustible, continuous insulation
• An air space between the siding’s back and WRB
• Flashings at penetrations and vulnerable spaces

Contractors will save money and time by selecting a straightforward, quick-to-install, complete rainscreen facade system over conventional building methods. Some building codes may require a rainscreen, particularly in heavy rain regions.

MP09 Black Panther, Graz, Austria

GSarchitects architects designed this mixed-use building with energy-efficient StoVentec® Glass to reflect their environment.

StoVentec® Glass Rainscreen® Systems

Stable and strong StoVentec® Glass Facade Rainscreen® systems contribute significantly towards safe, energy-efficient, comfortable, and low-maintenance buildings with superior IEQ. StoVentec® Glass Rainscreen® systems also provide wide design flexibility, with many color, shape, texture, and materials options to fit any aesthetic and architectural requirements.

The StoVentec® Glass Rainscreen system consists of glass-faced composite panels (outer layer) to keep out snow and rain. Mounting brackets between the panels produce a gap that permits air circulation (ventilation), moisture evaporation, and drainage. Thermal insulation is installed over the liquid-applied WRB and between the rails of the StoVentro subconstruction that fastens directly to the building structure.

Sto’s simple-to-install glass rainscreen system ensures a long-lasting wall system that furnishes thermally-efficient insulation that limits damaging condensation and lessens heating and air-conditioning costs. The glass facade’s structural frame also enhances safety against wind, high impact, and fire.

Why Choose StoVentec® Rainscreen® Facade Systems?

In a single-source, tested system, the StoVentec® Glass Rainscreen® facade includes eight components that produce an open joint and back-ventilated rainscreen wall system.

The StoVentec® Glass Facade Rainscreen® system ensures superior air and water tightness, thermal performance, and blast, fire, and wind protection to improve a building’s longevity, integrity, and IEQ.

With so many options for glass panel shapes, sizes, and colors that fit all aesthetic and architectural designs, you’re sure to find the perfect StoVentec® Glass Facade Rainscreen® system for your building! Contact the experts at Sto Corp today. Click here to learn more about Rainscreen wall systems.

The post Aesthetic Versatility with Glass Facade Buildings appeared first on Sto Corp..

• Thermal insulation for improved building energy efficiency.
• Weather resistance
• Support structure
• Durability
• Improved safety with wind, fire, and blast resistance
• Excellent Indoor environmental quality (IEQ)

Palma de Mallorca, Aquarium

StoVentec® Glass Cladding Ventilated Rainscreen®

What is Glass Cladding?

Glass cladding refers to the different materials that are used to cover a building’s exterior in order to protect its exterior and frame and enhance its aesthetic appeal. Exterior glass cladding serves many functions:

• Creates an external facade with glass panes
• Protects the structure from external conditions
• Furnishes privacy and security
• Minimizes the transmission of sound
• Provides thermal insulation
• Reduces the spread of fire
• Provides openings for ventilation, access, and daylight

What Are the Benefits of Glass Cladding?

Manufacturers and builders can use various materials to construct cladding (plywood, metal, natural stone, plastic, and glass). However, only glass cladding gives architects and designers the extensive design verticality to create unique and eye-catching buildings. It also provides significant construction and maintenance benefits and helps building teams improve a structure’s sustainability and indoor environmental quality (IEQ).

Aesthetic Advantages

• Creates a modern, aesthetically pleasing exterior with breathtaking and unique designs, captivating colors, shapes, textures, and designs
• Provides further design flexibility with transparency or translucency
• Creates an exquisite, functional, and durable design with textured glass by glass fusing

Construction Advantages

• Doesn’t increase a building’s dead load, like heavy stones, which makes glass cladding ideal for high-rise steel structures
• Speeds up the construction process with quick and easy to install prefabricated panels, unlike concrete which requires adequate curing time
• Saves contractors money with glass cladding because installing the prefabricated panels requires less specialized trades, reduces job site labor, and minimizes scaffolding use

Maintenance Advantages

• Smooth and glossy surface cleans easily in wet and dry environments without needing regular maintenance
• Resists the effects of rain, sun, and wind without losing its integrity or appearance
• Rust-resistant, so it doesn’t react when exposed to moisture and oxygen, unlike rust-prone steel

Sustainable Advantages

• Provides thermal insulation, which lowers energy use and reduces the loads on the HVAC system
• Protects a building from the elements, which improves its durability and longevity
• Impact-resistant glass cladding further enhances a building’s durability.

IEQ Advantages

• Provides sound insulation, which improves occupants’ comfort and productivity
• Allows daylight to enter a building to enhance occupants’ comfort and reduce energy costs
• Improves indoor air quality

Types of Glass Cladding?

Architects and builders typically can choose between two glass cladding types: curtain walls and rainscreen cladding.

Curtain Walls

Curtain walls provide a non-structural, aesthetically pleasing cladding system for the structure’s building envelope or wall system. Architects often use curtain walls in large, multi-story developments that are available in standard prefabricated systems or more costly specialized custom wall units.

Constructing a curtain wall involves fixing glazed or opaque infill panels to lightweight aluminum frames that are attached to a building skeleton to create the appearance of floor-to-ceiling windows. Curtain walls don’t support the weight of a roof or floor’s weight. Instead, wind resistance and gravity loads transfer from the surface to the building’s floor line.

The success of curtain walls requires a qualified-experienced building team and quality control to ensure the proper implementation of the curtain wall. Builders must carefully integrate the curtain walls with adjacent structural elements like wall claddings, roofs, and wall details to prevent significant problems from water and air leakage to falling trim covers.

Rainscreens

Atlanta Plant Tank Farm Wall
Atlanta, Georgia USA

Building Type: Office / Warehouse
Sto System Type: StoVentec® Glass Cladding Rainscreen®

A rainscreen includes a ventilation gap to the exterior of the water-resistive barrier that creates a space for drainage and drying, to protect the wall from structurally damaging and unhealthy mold. In addition, the rainscreen provides several functions that protect the wall system.

A rainscreen protects the wall’s interior from the Sun’s ultraviolet rays, air pressure (wind) variations, and other severe weather conditions.

A rainscreen protects the exterior walls from bulk liquid water from snow, rain, etc.
If moisture enters the outer shell of the rainscreen, a ventilated rainscreen increases a wall’s capacity to dry, and stops it from entering the building envelope.

Rainsceens stop the buildup of indoor humidity and vapor migration by diffusion and airflow to minimize condensation and moisture absorption into cool surfaces and materials.

In addition, rainscreens provide excellent thermal performance and wind, fire, and impact protection. These features contribute to the glass cladding’s long-term integrity and the occupants’ comfort, safety, and air quality.

A well-designed rainscreen system includes the following:

• A water-resistive barrier (WRB)
• An air space between the WRB and the back of the siding
• Flashings at penetrations and vulnerable areas
• Non-combustible, continuous insulation

Builders will save time and money during construction by choosing an easy and fast-to-install, complete rainscreen cladding system over traditional building techniques. Some building codes may mandate a rainscreen, particularly in areas of heavy rain.

StoVentec® Glass Rainscreen® Systems

Secure and robust StoVentec® Glass Cladding Rainscreen® systems contribute significantly towards energy-efficient, safe, low maintenance, and comfortable buildings with healthy IEQ. StoVentec® Glass Rainscreen® systems also offer extensive design flexibility, with many choices in color, texture, shape, and materials to fit your architectural and aesthetic requirements.

Our straightforward-to-install glass rainscreen architecture system ensures a successful, long-lasting wall system that provides thermally-efficient insulation that minimizes damaging condensation and reduces the cost of heating and air-conditioning. At the same time, the glass cladding’s structural frame improves safety against wind, fire, and high impact.

StoVentec® Glass Rainscreen® System Components

The StoVentec® Glass Cladding Rainscreen® consists of glass-faced composite panels (outer layer) to keep out most of the rain and snow. Mounting brackets between the panels create a gap that allows air circulation (ventilation), moisture evaporation, and drainage. Thermal insulation attaches to a WRB that fastens directly to the building structure.

Decorative Glass Panel

The durable decorative glass panel (laminated, solid, or toughened) can withstand the weather. The toughened glass offers four to five times more strength than standard glass. If smashed, the toughened glass also will break into smaller, safer pieces, yet remain bonded to the backing board.

Support Structure

The stainless steel and aluminum support structure carries the panel system and withstands wind loads. Aluminum offers a high strength-to-weight ratio (at a lower cost), while stainless steel improves thermal performance. Stainless steel brackets provide an equal U-value with half the insulation layer thickness as aluminum. Combining the stainless steel brackets and aluminum rails optimizes cost and performance.

The number of brackets depends on the substrate’s properties, the system’s depth, and wind loads. For example, low-strength substrates, like light-gauge steel, lightweight blockwork, or wood, need more fixed-point brackets to carry the system’s weight.

Insulation

Insulation (often made of mineral fibers) insulates the substrate and surrounds the brackets. The insulation keeps the wall warm, minimizes condensation (to eliminate structurally damaging and unhealthy mold), and lessens temperature fluctuations.

Continuous Air and Water-Resistive Barrier

A continuous air and water-resistive barrier prevents unwanted moisture from entering the cladding. The 2021 I.B.C. requires a weather-resistant exterior wall envelope for all buildings, with a few exceptions like masonry walls and concrete.

However, leaks happen due to improper installation or deterioration, that allow water to flow through tiny openings by surface tension, gravity, air pressure differences, momentum (kinetic energy), or capillarity. A rainscreen cladding system will minimize water infiltration by providing a drainage plane.

Improved Safety

Wind Resistance

Correctly installed stainless-steel wall brackets and aluminum horizontal and vertical brackets support the sub-construction, to form a solid structural link between the supporting wall construction and facade. This structural design absorbs wind and dead loads and transfers them to the supportive wall construction.

Fire Breaks

Like most exterior walls in the U.S., rainscreen installation must comply with fire-resistance testing requirements, like ASTM E119 and NFPA 285.

Blast-Tested

The integrity and strength of the StoVentec® Glass Cladding Rainscreen® system can pass the most rigorous blast tests, which makes it suitable for public spaces like railway stations and airports .

Why Choose StoVentec® Glass Rainscreen® Cladding Systems?

In one complete, tested system, StoVentec® Glass Rainscreen® Cladding combines eight components to create an open joint and back-ventilated rainscreen wall assembly:

• Sto AirSeal® air and water-resistive barrier for wall assemblies
• Sto RapidGuard® air and water-resistive detail component for sheathing corners and joints
• Sto RapidGuard™ detail component for rough opening protections
• Sto RapidGuard™ detail component for penetrations and flashing
• Owens Corning Thermafiber® Rainbarrier® 45 continuous mineral wool insulation
• StoVentro™ Sub-construction
• StoVentec® Glass Panel prefabricated wall panel

The StoVentec® Glass Cladding Rainscreen® system ensures superior water and air tightness, excellent thermal performance, and fire, wind, and blast protection to enhance a building’s integrity and longevity.

The StoVentec® Glass Cladding Rainscreen® creates superior IEQ by ensuring a comfortable indoor climate, to prevent the growth of unhealthy mold, and lessen sound.

StoVentec® Glass Cladding Rainscreen®’s expansive glass panel shapes, sizes, and colors fit all architectural and aesthetic designs.

Download the StoVentec® Glass Design Guide & Detail Booklet today for more information on glass cladding solutions for buildings.

The post Glass Cladding Solutions for Commercial Buildings appeared first on Sto Corp..

Aesthetically attractive and versatile StoVentec® Rainscreen® comes in glass, masonry veneer, and a variety of render finishes, to provide building owners and architects with a range of unique aesthetic options for building rainscreen facades in combination with Sto’s high-performance, engineered products.

What Are Ventilated Rainscreens?

Ventilated rainscreen facades provide high-performance cladding for public and private, new and restoration construction. Ventilated rainscreen facades combine high thermal performance with aesthetic quality, functionality, lightness, and strength.

Ventilated rainscreen systems are cladding systems with air circulation space and water drainage between the cladding and the weather-resistive barrier (WRB) that effectively control moisture within the wall cavity. Today’s ventilated rainscreens offer optimal performance, superior weather protection, thermal protection, and expansive design flexibility for outstanding curb appeal. High-performing ventilated facade rainscreen systems contain five layers:

1. Air and water-resistive barriers (like fluid-applied, adhered membranes, or factor-bonded with the barrier) that keep moisture outside the structure
2. Sub-construction, or furring, with mounting brackets anchored into the substrate to connect the cladding
3. As required by code, insulation between brackets, rails, and sub-construction provides thermal resistance
4. Air and ventilation cavity that acts as a drain and vent space in the envelope
5. Durable and water-shedding cladding protects against environmental elements, pollutants, UV-exposure, and more.

Why Is Ventilation Important?

Ventilated rainscreens allow air to circulate behind the siding, which promotes drying within the cladding system.

In the past, wall insulation levels allowed heat to infiltrate and dry out the moisture within the wall cavity. However, today’s high-performing structures, with higher insulation values, don’t allow heat to penetrate the walls and dry out moisture, especially in colder climates. Moisture in the wall cavity can lead to structurally damaging and unhealthy mold.

Ventilation in the rainscreen systems allows moisture to dry, stopping mold growth. In addition, ventilation within the rainscreen increases the durability of the siding. The gap for ventilation in the rainscreen does not diminish the wall system’s R-value.

What Problems Do Ventilated Rainscreen Systems Solve?

Ventilated rainscreens hasten the construction timeline and help prevent several problems within the wall system:

1. In the past, the rainscreens five layers required different manufacturers and installers, complicating the construction process and adding time to the building process. The single-solution ventilated rainscreens contain all the layers, to simplify installation and save time and money.
2. The ventilation cavity to the exterior of the WRB protects the building envelope from moisture accumulation by allowing for drying and drainage.
3. A rainscreen helps protect the wall’s interior from the Sun’s UV rays, air pressure (wind) variations, and other extreme weather conditions.
4. The exterior rainscreen facade furnishes the wall’s first line of defense against wind, rain, snow, cold, heat, moisture, and more.

Is a Ventilated Rainscreen Worth the Investment? – Yes

Building codes may mandate a rainscreen, especially in areas of heavy rain. However, even in regions with less rainfall, installing a rainscreen provides construction and sustainability benefits that save building owners money during and after construction.

Benefits of Ventilated Rainscreens

Ventilated rainscreens increase a structure’s durability and prevent water damage to homes and buildings. In addition, rainscreens protect and extend the life of the exterior cladding and their finishes (paint or stain), reducing maintenance.

• Keep Rain off the Waterproofing Membrane
  The ventilated rainscreen provides a backup barrier to the entire cladding against bulk water, allowing the weather-resistant barrier to shedding residual water more effectively and with less stress.
• Limit UV Damage to Water Resistant Membrane
  Ventilated rainscreen shades the weather-resistant barrier from direct solar heat and radiation, significantly extending its service life.
• Offer Optimum Drying Potential of Enclosure
  Ventilated rainscreens help dry out the wall cavity, stopping the growth of unhealthy and structurally damaging mold.
  • A vented rainscreen maximizes the walls’ outward drying potential, removing moisture quicker than it can enter the building cavity.
  • When moisture can accumulate in the wall cavity during cold weather, ventilated rainscreens help the sheathing dry out.
  • The gap provides a capillary break between the WRB and siding, allowing moisture redistribution in the siding and sheathing to nearby materials by evaporation and diffusion, thereby minimizing water damage at the leak points.
• Maximize Performance and Life Expectancy of the Wall Components
  A ventilated rainscreen helps protect the WRB and insulation layers from physical abuse so they perform optimally for a maximum life expectancy.

StoVentec® Rainscreen® Systems

StoVentec® Systems offers a complete, code-approved, and fully-tested ventilated Rainscreen® system with endless design options. Our Rainscreen® systems include a high-performing air and water-resistive barrier, non-combustible mineral wool continuous insulation, an adjustable sub-framing assembly, and our high-quality StoVentec® Rainscreen® cladding from one manufacturer.

In addition, energy-efficient and lightweight StoVentec® Rainscreen® Systems reduce the cost of air-conditioning and heating and minimize condensation that can lead to unhealthy and damaging mold and rot.

StoVentec® Rainscreen® comes in render, masonry veneer, and glass cladding surfaces, to provide designers and architects with an extensive range of aesthetic choices to achieve unique and beautiful facades combined with Sto’s other highly-engineered performance characteristics. In addition, the StoVentro™ Rainscreen® sub-construction offers a system for uneven substrates and flush transitions between different rainscreen claddings.

Sto Product: StoVentec® Glass Ventilated Rainscreen® cladding system
Owner: Stiftung Pfennigparade
Architect: RPM Architekten + Stadtplaner GmbH

To make young students feel comfortable when at school, RPM Architekten + Stadtplaner GmbH designed the Conductive Education Centre with colorful, unique facades that beautifully incorporate the StoVentec® Glass Rainscreen® system.

Additionally, Glass Rainscreen® systems provide several advantages that contribute toward an attractive, energy-efficient, comfortable, and safe building: simple and fast installation, high-thermal performance, design flexibility, and enhanced safety against winds, fire, and even bombs.

StoVentec® for Masonry Veneer Facades

• Thin brick
• Masonry
• Tile

Easy-to-install, StoVentec®’s drained and back-ventilated, fully-engineered Rainscreen® system for masonry veneer facades combines all the building envelope components essential to all climates, from frigid northeast to humid and hot tropics:

• Continuous insulation (CI)
• StoVentro™ sub-construction
• Continuous air and water-resistive barrier
• Robust masonry veneer adhesive

StoVentec® for Glass Facades

• Back-colored glass
• Frosted glass
• Custom printed glass

The back-ventilated and open-joint drained StoVentec® Glass Rainscreen® wall offers excellent weather and air tightness with excellent thermal performance and fire protection. A one-source system combines non-combustible continuous exterior insulation and continuous air and water-resistive barrier with StoVentro™ sub-construction and StoVentec® Glass Panels to create an advanced high-performance wall assembly.

StoVentec® for Render Facades

• Sto textured finish
• Stolit® Lotusan® self-cleaning textured finish
• StoCast

Drained and back-ventilated StoVentec® Render rainscreen wall assembly provides aesthetic choices of Sto textured finishes, Sto Specialty finishes, or StoCast prefabricated resin cast shapes.

The single-source StoVentec® Render Rainscreen® wall system combines superior air and weather tightness with quality thermal performance and fire protection. The wall system includes non-combustible continuous exterior insulation and continuous air and water-resistive barrier with StoVentro™ Sub-construction and Sto finish systems to produce an advanced high-performance wall system. The StoVentec® carrier board also combines lightweight and high compressive strength to allow for seamless walls and curved surfaces.

Effective Ventilated Rainscreen Systems

StoVentec® Ventilated Rainscreen® systems effectively manage water, air, thermal, mechanical, and fire performance. The easy-to-install, integrated building envelope solution saves time and money and contributes to a healthy building with superior energy efficiency, long-term durability, and excellent IEQ. For more information on rainscreens, download additional articles Understanding Rainscreen Walls and Rising Trends in Ventilated Rainscreen Systems.

StoVentec® Rainscreen® comes in glass, render, and masonry veneer finishes to give architects and building owners a wide range of aesthetic choices to achieve unique looks for constructing ventilated rainscreen facades combined with Sto’s other highly-engineered performance components. Contact one of our Ventec specialists today.

The post Are Ventilated Rainscreen Systems Effective? appeared first on Sto Corp..

StoVentec® Rainscreen® comes in glass, render, and masonry veneer finishes, providing architects and building owners with a range of aesthetic choices to achieve distinctive looks for constructing rainscreen facades combined with Sto’s other highly-engineered performance features.

What is a Rainscreen?

A rainscreen aims to effectively manage moisture within the wall system. According to the E.P.A., a building’s design must include three specific features to control moisture, protect the structure’s long-term durability, and ensure good indoor air quality. Fortunately, a quality rainscreen system provides all these features:

1. Control bulk liquid water from rain, snow, etc.
2. Stop an excessive buildup of indoor humidity and water vapor migration by air flow and diffusion to limit condensation and moisture absorption into cool materials and surfaces.
3. Moisture-resistant materials

Rainscreen Vs. Drainable Housewrap

A house wrap with raised patterns or wrinkles may provide some drainage, but it does not create a ventilation cavity like a rainscreen. A rainscreen with a ventilation cavity provides for both drainage and drying of moisture that gets past the exterior facade.

What is a Rainscreen System?

A rainscreen wall system includes a ventilation cavity to the exterior of the water-resistive barrier allowing for drainage and drying and protecting the exterior walls from moisture intrusion. If moisture infiltrates the outer shell of the rain screen, the gap will prevent it from penetrating the building envelope.

Furthermore, ventilating the wall increases its capacity to dry, which adds further protection. In addition to controlling moisture, a rainscreen helps protect the wall’s interior from air pressure (wind) variations, the sun’s ultraviolet rays, and other severe weather conditions.

Every well-designed rainscreen system needs:

• A water-resistive barrier (W.R.B.),
• An air gap between the W.R.B. and the back of the siding,
• Flashings at all penetrations and vulnerable areas; and often
• Continuous, non-combustible insulation.

Does a Rainscreen Lessen the Wall System’s R-Value?

Many building envelopes include rigid insulation with taped seams to meet the requirements of new energy codes. These wall systems must have a drainage gap placed between the exterior of the rigid insulation and the veneer. The gap does not affect the wall system’s R-value.

What is a Rainscreen?

Adding a rainscreen drainage plane to a building envelope mitigates the risk of moisture intrusion and accumulation into the wall system from imperfect wall materials and construction. Moisture can lead to structurally damaging and unhealthy rot and mold.

Building codes may mandate the need for a rainscreen, particularly in regions of heavy rain. However, even in areas with less rainfall, installing a rainscreen will provide superior moisture protection to the building envelope.

What is Rainscreen Siding?

A rainscreen siding wall system contains a drainage gap between the siding and the water-resistive barrier (e.g., asphalt felt, house wrap) with ventilation gaps at the top and the bottom of the wall.

What is a Rainscreen Facade?

The rainscreen facade, like brick, stone, or masonry veneer, provides the wall’s first line of defense against moisture. A rainscreen facade on the exterior wall faces the weather (outside environment). Behind the facade, a ventilation gap of 20 – 50 mm separates the facade and the moisture-resistant structural backup wall.

What is Rainscreen Cladding?

Rainscreen cladding systems provide builders and architects with a flexible design for creating attractive facades. In addition, the cladding systems offer an excellent air and water-resistive barrier, superior thermal performance, and fire, wind, and impact protection. These components contribute to the cladding’s long-term integrity and the comfort, air quality, and safety of the structure’s occupants.

Additionally, builders will save time and money during construction by choosing an easy and fast-to-install, complete rainscreen cladding system over traditional building techniques.

StoVentec® Rainscreen® Systems

StoVentec® Systems offers a complete, fully-tested, and code-approved ventilated Rainscreen® system with endless design possibilities. Our Rainscreen® systems include a superior air and water-resistive barrier, non-combustible mineral wool continuous insulation, adjustable sub-framing system, and our high-performing StoVentec® Rainscreen® cladding. Furthermore, lightweight and energy-efficient, StoVentec® Rainscreen® Systems lowers the cost of heating and air-conditioning and limits condensation that can lead to damaging and unhealthy rot and mold.

StoVentec® Rainscreen® comes in glass, render, and masonry veneer finishes, providing architects with a range of aesthetic choices to achieve unique looks for building rainscreen facades combined with Sto’s other highly-engineered performance characteristics. In addition, the StoVentro™ Rainscreen® sub-construction provides a system for uneven substrates and furnishes flush transitions between different rainscreen claddings.

StoVentec® for Masonry Veneer Facades

Installer-friendly, StoVentec®’s drained and back-ventilated, fully engineered Rainscreen® masonry cladding wall assembly combines all the building envelope components vital to all climates, from frigid Canadian Rockies to humid and hot topics:

• CI
• Sto Ventro™ sub-construction,
• continuous air and water-resistive barrier,
• and robust masonry veneer adhesive.

StoVentec® for Glass Facades

The open joint drained and back-ventilated StoVentec® Glass rainscreen wall system provides excellent air and weather tightness with superior thermal performance and fire protection. In a single source system, it combines noncombustible continuous exterior insulation and continuous air and moisture barrier with StoVentro™ sub-construction and StoVentec® Glass Panel to produce an advanced high-performance wall system.

StoVentec® for Render Facades

Drained and back-ventilated StoVentec® Render rainscreen wall system offers aesthetic opinions of Sto textured finish, Stolit® Lotusan® self-cleaning textured finish, and StoCast prefabricated resin cast shapes.

Moreover, the single-source StoVentec® Render Rainscreen® wall assembly combines excellent air and weather tightness with high-quality thermal performance and fire protection. The system incorporates noncombustible continuous exterior insulation and continuous air and moisture barrier with StoVentro™ Sub-construction and Sto finish systems to create an advanced high-performance wall assembly. In addition, the StoVentec® carrier board combines lightweight and high compressive strength to allow for seamless walls and curved surfaces.

Why Choose StoVentec® Rainscreen Systems?

StoVentec® Rainscreen systems help create a sustainable, comfortable, energy-efficient, and healthy IEQ) for commercial, residential, and institutional interior and exterior wall construction. They offer a complete, fully-tested, and code-approved, back ventilated system that provides a superior air and moisture barrier, robust mineral wool CI, straightforward installation with an adjustable sub-framing system, and our high-performing StoVentec® Rainscreen® cladding options.

StoVentec® Rainscreen®, available in glass, render, and masonry veneer finishes, offer architects and building owners an expansive range of aesthetic choices to achieve unique looks for constructing rainscreen facades combined with Sto’s other highly-engineered performance components.

Contact us today for more information on StoVentec® Glass, Render, and Masonry veneer systems.

The post What is a Rainscreen System? 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..

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..

Along with aesthetics, your choice for a building’s facade impacts the structure’s durability, energy efficiency, and the occupant’s experience. It also affects your long-term maintenance and utility costs and your structure’s impact on the environment.

Therefore, besides facade aesthetics, architects and builders should consider the facade’s sustainability (energy use and embodied and emitted carbon), durability, and how it affects the structure’s indoor environmental quality (daylight, acoustics, and air quality).

Fortunately, Sto Corp.’s StoVentec® Rainscreen® systems can meet all these demands. Our easy to install Rainscreen® cladding systems help create energy-efficient, safe, and comfortable buildings with healthy indoor environmental quality (IEQ). Our established and proven Rainscreen® cladding systems also offer architects and builders extensive design flexibility with many choices in shape, texture, color, and materials to fit your aesthetic and architectural needs.

In addition, our Rainscreen® system provides thermally-efficient insulation that limits damaging condensation and lessens the cost of heating and air-conditioning. And StoVentec glass cladding systems provide protection against wind, fire, and high impact.

17 Building Facades to Achieve Multiple Glass Aesthetics on a Building

StoVentec® Rainscreen® Systems provided architects and builders of these 17 building facades with extensive design flexibility and many choices in shape, texture, color, and materials to fit all their aesthetic and architectural requirements. The StoVentec Rainscreen® cladding systems created safe, energy-efficient, and comfortable buildings with healthy indoor environmental quality (IEQ).

Residential Homes

1. Davenport House, Louisa County, Virginia

StoVentec® Glass’s reflective properties create a home that takes on different qualities and appearances throughout the day (and seasons), allowing the family to see their home through a different lens every time they look at it.

Architect, Jeff Davenport, chose the StoVentec® Glass panel system for his home’s exterior cladding due to its superior thermal and sound insulation and striking aesthetics. In addition, the advanced Rainscreen® cladding offered a high-tech, back-ventilated system and air cavities for drainage.

2. Zislis Residence, California

Entrepreneur, hotelier, and restaurateur Micheal Zislis selected the StoVentec® Rainscreen® System for his young family’s new 4,500 ft2 home for its enhanced aesthetic value and advanced performance properties. The home’s striking facade includes 900 ft2 of StoVentec® Glass in Azure Blue, Light Blue, and Pastel Blue.

Educational Buildings

3. Wolverhampton Girl’s High School, Wolverhampton, England

The Wolverhampton Girl’s High School chose StoVentec® Glass for its Sixth Form hub building for its strong visual appeal, and it brings stunning, contemporary aesthetics to the historical campus. In addition, they wanted a durable facade, resistant to scratching and denting, like metal. The StoVentec® Glass facade harmonizes with the campus’s surroundings, to reflect the beautiful landscaping of the site, as well as the school’s original buildings, dating back to 1911.

4. Conductive Education Centre, Munich, Germany

To make young students feel comfortable and at home when at school learning, RPM Architekten + Stadtplaner GmbH designed the Conductive Education Centre with unique, colorful facades that beautifully incorporate a StoVentec® Glass Rainscreen® system.

In addition, StoVentec® Glass Rainscreen® systems provide several benefits that contribute toward an aesthetically beautiful, energy-efficient, safe, and comfortable building: quick installation, design flexibility, high-thermal performance, and enhanced safety against fire, winds, and impacts.

Offices and Warehouses

5. 338 Euston Rd, London, England

In England, a renovated office building utilized StoVentic® Glass Rainscreen® to update its facade, which creates a sleek, modern look.

6. MP09 Black Panther, Graz, Austria

GSarchitects designed this mixed-use office building with energy-efficient StoVentec® Glass and utilized black glass panels to reflect its surrounding environment. The unique structure rests on bases with a striking protruding bow, to give the appearance of a panther ready to pounce – hence its name, Black Panther.

7. Reston Town Center, Reston, Virginia

Duda Paine Architects selected StoVentec® Glass to create a reflective, bold, geometric ceiling connecting the Reston Town Center towers. StoVentec® permitted builders to use a single system to construct a geometric building on an exterior ceiling. Maintaining the flatness of the prisms required almost 3000 ft2 of StoVentec® Glass Panels attached to a marine-grade plywood substrate. One-hundred thirty-two glass panels of different finishes and sizes make up the bridge’s three diamond-shaped prisms.

8. Sto Corp. Atlanta Plant Tank Farm Wall, Atlanta, Georgia

Healthcare Buildings

9. Lausitzer Seenland Clinic, Hoyerswerda, Germany

The refurbishment and extension of the Lausitzer Seenland Clinic utilized the StoVentec® Glass Ventilated Rainscreen® cladding system for its high degree of durability and functionality while creating a unique facade, unlike typical healthcare construction. Note the rectangular glass body on the building roof protruding into the air. In addition, the glass facade tilts forward by approximately four degrees towards the building’s top, to provide an unusual view for spectators.

10. Sheltering Arms, Richmond, Virginia

Architects choose StoVentro™ Sub-Construction for the facade of the new
Sheltering Arms Institute (an in-patient rehabilitation 200,000 ft2, 114-bed hospital). They decided on a mix of terracotta and metal panels for the building’s facade in order to create a modern, sophisticated look.

Utilizing the StoVentro™ Sub-Construction simplified the installation of the two claddings, which came from different manufacturers. Using one sub-construction system that worked with both claddings allowed builders to streamline the order, delivery, and installation, to save both time and effort.

Multi-family Housing

11. Queensbridge Quarter, London, England

Architects combined StoVentec® Glass and Render systems to deliver a stunning apartment building in an up-and-coming London borough. To create a visual illusion at the building’s top, they chose blue and green facade colors to match the sky. The innovative StoVentro™ Sub-Construction allowed for quick and easy installation. The StoVentec® Glass Rainscreen® cladding system worked well with the render system.

Entertainment and Cultural Structures

Archaeological Museum, Schwerin, Germany

State Building Authority Mecklenburg-Western Pomerania architects designed the State Archaeological Museum with black enameled glass from the StoVentec® Glass ventilated Rainscreen® cladding system. The design creates a modern-uniform, shiny black cube with no windows or other visual distractions except the side entrance.

13. Forum Barcelona, Barcelona, Spain

14. Palma Aquarium, Palma de Mallorca, Spain

Gebaeude des Aquariums von Palma de Mallorca

Architects designed the facade of the Palma Aquarium with a bent facade, to convey the impression of a living organism. They accomplished this with StoVentec® Glass Rainscreen®, which permitted custom sizes for the sweeping design. In addition, the non-visible StoVentro™ Agraffe profile allowed the attachment of colored glass panels to the rear side, which allows for a visual flow of curve and color.

15. Plymouth Life Center, Plymouth, UK

Plymouth Life Center architects used multiple Sto facade systems to introduce variety into a potentially severe monolithic structure. Across the facade they seamlessly combined the StoVentec® Glass Rainscreen® system with a high performing StoTherm™ ci continuous insulation wall system. The projects utilized 519 glass panels (1,102 m2) of various shapes, from uniform to rectangular, to those with sloping edges. The design included yellow and blue colors with eight different colors of rendered StoTherm™ ci.

Hospitality

16. Hotel Messerschmitt, Bamberg, Germany

The newly-built Hotel Messerschmitt utilized the StoVentec® Ventilated Rainscreen® cladding system to create a long-lasting, energy-efficient, and aesthetically pleasing structure. The StoVentec® Ventilated Rainscreen® cladding system contributes to the acoustic comfort of the hotel’s visitors by lessening exterior noise.

Retail Structures

17. Einkaufszentrum Letmo (Letmo Shopping Center), Brünn, Czech Republic

For the Letmo Shopping Center renovation, architects utilized StoColor Lotusan, Stolit 1.5 MP, and StoVentec Render.

• Drained, back-ventilated, single-source StoVentec® Render Rainscreen® wall system combines superior air and weather tightness with outstanding thermal performance and fire protection. It combines noncombustible continuous exterior insulation and continuous air and moisture barrier with StoVentro™ Sub-construction and Sto finish systems to produce an advanced high-performance wall system. The StoVentec® carrier board combines lightweight and high compressive strength, to allow for seamless walls and curved surfaces, not achievable by other claddings.
• Stolit® applies over Sto Claddings, concrete, masonry, and plaster substrate as a decorative and protective exterior and interior wall coating.
• StoColor® Lotusan® above-grade exterior wall coating with Lotus-Effect® technology mimics the lotus leaf’s self-cleaning capabilities.

Why Choose StoVentec® Rainscreen® Systems?

Sto Corp’s inspiring and thought-provoking facades will give a building life, character, and personality, to help architects achieve their creative vision. Our proven products give you unmatched freedom and the ability to achieve your vision in any color, form, texture, or material.

StoVentec® Rainscreen® Systems also create sustainable and durable facades that enhance a structure’s safety and contribute to superior IEQ.

For more on how you can achieve attractive and unique facades for your commercial, residential, or institutional building, don’t hesitate to contact our Sto professionals today!

The post 17 Building Facades to Show How You Can Achieve Multiple Aesthetics on a Building appeared first on Sto Corp..

Simple-to-install, StoVentec® drained and back ventilated, fully engineered Rainscreen® brick cladding wall systems combine continuous insulation (CI), Sto Ventro™ sub-construction, a continuous air and moisture barrier, and high-strength masonry veneer adhesive. They are all essential building envelope components in all climates, from the hot and humid tropics, to the frigid Canadian Rockies.

Lightweight and energy-efficient, StoVentec® for masonry veneer facades provides a superior air and weather barrier with excellent thermal performance, that lowers the cost of heating and air-conditioning and limits condensation that can lead to damaging and unhealthy mold.

What Are Brick Cladding Systems & Rainscreens?

Brick rainscreen cladding systems provide architects and builders with a flexible design for creating beautiful facades. In addition, the cladding systems offer a superior air and water-resistive barrier, excellent thermal performance, and wind, fire, and impact protection. These features contribute to its long-term integrity and the comfort, air quality, and safety of the home or building occupants.

In addition, builders will save time and money during construction by choosing a simple and quick-to-install brick rainscreen cladding system over traditional building methods.

StoVentec® for Masonry Veneer Facades

Lightweight and energy-efficient StoVentec® for Masonry Veneer Facades provides a drained and back-ventilated fully engineered Rainscreen® wall system for masonry veneer facades that features a thin brick facade. The complete Rainscreen® system includes five main components:

1. Air and water-resistive barrier
2. Adjustable sub-construction
3. Non-combustible thermal insulation
4. A lightweight composite carrier board made from recycled glass granulate
5. Reinforcement layer for added durability
6. Adhesive mortar
7. Thin brick masonry veneer
8. Masonry veneer grout

Builders and architects that aim to design an energy-efficient, air and moisture-resistant building with a beautiful and unique facade can use StoVentec® for Masonry Veneer Facades for exterior and interior residential, commercial, and institutional wall construction.

StoVentec® for Masonry Veneer Facades Provides Design Flexibility

A long-lasting StoVentec® Rainscreen® system with a thin brick masonry veneer offers building envelope designers extensive flexibility of form and function when integrated with Sto’s other engineered wall systems. StoVentec® Rainscreen® systems provide an endless creative range of aesthetic options – including truly custom-made open joint glass rainscreen panels and limitless combinations of shapes, colors, textures, and colors. Our innovative complete cladding system allows designers to achieve distinctive building facades coupled with Sto’s highly-engineered performance characteristics.

Components of the StoVentec® for Masonry Veneer Facades

Sto’s advanced high-performance wall assembly for masonry veneer facades incorporates noncombustible mineral wool continuous exterior insulation, StoGuard air and water-resistive barrier, StoVentro™ sub-construction, StoVentec lightweight composite carrier board, and high-strength StoColl KM masonry veneer adhesive. When combined with code compliant thin brick masonry veneer and masonry grout, the result is a high performance fire, wind, impact, and puncture-resistant cladding.

It’s important to know that Sto Corp. covers all Sto components with a single-source warranty.

1. Air and Moisture Barrier: Sto AirSeal®

Fluid-applied Sto AirSeal® vapor permeable air and moisture barrier is made to be applied behind StoVentec® RainScreen®, StoTherm® ci, StoPowerwall®, StoQuik® Silver, and other wall claddings like masonry, stone, stucco, and fiber cement.

2. Sub-construction: StoVentro™ Bracket, StoVentro™ T-Profile, and StoVentro™ L-Profile

Quick to install and adjustable, StoVentro™ Sub-construction absorbs the wind and dead loads of the facade. It also includes corrosion-resistance and helps to lessen thermal bridging.

3. Thermal Insulation: Owens Corning Thermafiber® RainBarrier 45®

4. Carrier Board: StoVentec® Carrier Board A+

Lightweight StoVentec® Carrier Board A+ composite board, made of recycled glass granulate and double-sided glass fiber mesh reinforcement, can be used as part of the StoVentec® Render Rainscreen® and StoVentec® for masonry veneer facade systems.

5. Primer: StoPrime®

Builders use StoPrime® for priming prepared concrete, plaster, masonry, StoTherm® base coat, or drywall surfaces before applying Sto Finishes and Coatings and as a block-filling concrete masonry primer.

6. Base Coat: Sto Primer/Adhesive

Acrylic-based Sto Primer/Adhesive provides an adhesive and base coat in the StoVentec Rainscreen System.

7. Reinforcement: Sto Mesh 6oz

Specially designed Sto Reinforcing Mesh utilizes coated glass fiber fabrics to provide reinforcement and impact resistance.

8. Masonry Veneer Adhesive: StoColl

StoColl KM is a high-performance, polymer-modified, portland cement thin-set adhesive with superior freeze-thaw resistance and high bond strength, that produces an advanced engineered wall cladding system.

Sto Corps.’ shear bond strength tests all customer-submitted thin brick masonry veneers to ensure system compatibility and required performance with StoColl KM.

9. Masonry Veneer Grout: ANSI 118.7 compliant portland cement-based grout (by others)

10. Masonry Veneer: thin brick in conformance with ASTM C1088 (by others)

Why Choose StoVentec® for Masonry Veneer Facades?

Easy and fast to install, StoVentec® for Masonry Veneer Facades provides an engineered wall system designed to support code compliant thin brick veneer surfaces. It incorporates noncombustible exterior CI and continuous air and moisture barrier with Sto Ventro™ Sub-construction and Sto’s high strength masonry veneer adhesive to produce an advanced high-performance wall system.

StoVentec® for Masonry Veneer Facades help create sustainable, energy-efficient, comfortable, and healthy IEQ residential, commercial, and institutional wall construction (interior and exterior).

Don’t hesitate to Download the StoVentec® for masonry veneer facades Design Guide today for more specifics on high quality brick rainscreen cladding.

The post Understanding Brick Rainscreen Cladding Systems 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.

The post 5 Cladding Systems for High Performance Buildings appeared first on Sto Corp..

In addition, our easy-to-install glass rainscreen architecture system provides thermally efficient insulation that limits damaging condensation and lowers the cost of heating and air-conditioning. At the same time, the structural frame of glass cladding systems enhances safety against fire, wind, and high impact.

In Germany, State Building Authority Mecklenburg-Western Pomerania architects designed the State Archaeological Museum with a black enameled glass StoVentec® Glass ventilated rainscreen cladding system. The scheme presents a modern-monolithic, shiny black cube, with no windows or other visual differentiation, except the side entrance.

What Are Glass Wall Cladding Systems?

Glass cladding provides a strong and safe system with design flexibility, thermally efficient insulation, and a weather-resistant facade that stops water from penetrating the wall system.

When choosing a glass rainscreen cladding system, besides aesthetics, you should consider its long-term integrity by choosing one with superior air and water tightness, excellent thermal performance, and fire, wind, and impact protection. These features will also help improve the indoor comfort and air quality for the occupants of the building. In addition, selecting an easy and quick-to-install product will save time and money during construction.

Components of the StoVentec® Glass Rainscreen® System

Glass rainscreen cladding consists of glass-faced composite panels (outer layer) that keep out most of the rain. Mounting brackets between the panels create a cavity that permits air circulation (ventilation), drainage, and moisture evaporation. Thermal insulation attaches to a weather-resistant barrier that mounts directly to the building structure.

Decorative Glass Panel

The decorative glass panel (solid, laminated, or toughened) resists the weather. The toughened glass provides four to five times more durability than standard glass. In addition, toughened glass will break into smaller,safer fragments yet remain bonded to the backing board if shattered. 

To toughen glass, manufacturers reheat and expose high concentrations of nickel sulfide impurities (which expand the glass) to the toughened glass. The process lessens the risk of cracking from 1 in 4,000 to 1 in 40,000 over 20 to 30 years.

Support Structure

The support structure, made of aluminum and stainless steel, carries the panel system, and resists wind loads. 

Aluminum provides a high strength-to-weight ratio (at a low cost), while stainless steel enhances thermal performance. Stainless steel brackets achieve the same U-value without thermal breaks with half the insulation layer thickness as aluminum. Therefore, combining aluminum rails and stainless steel brackets optimizes performance and cost.

The number of brackets depends on wind loads, the substrate’s properties, and the system’s depth. For example, low-strength substrates, such as lightweight blockwork, wood, or light-gauge steel, require additional fixed-point brackets to carry the system’s weight.

Insulation

Insulation, commonly made of mineral fibers, surrounds the brackets and insulates the substrate. Insulation keeps the wall warm, lessens condensation (eliminating unhealthy and structurally damaging mold), and minimizes temperature fluctuations.

Continuous Air and Moisture Barrier

A continuous air and moisture barrier will stop unwanted moisture that infiltrates cladding. The 2021 IBC requires all buildings to provide a weather-resistant exterior wall envelope, with a few exceptions like concrete and masonry walls.

However, leaks can occur due to deterioration or improper installation, allowing water to migrate through small openings by gravity, surface tension, air pressure differences, capillarity, and momentum (kinetic energy). A rainscreen cladding system will minimize water intrusion by providing a drainage plane.

The Benefits of StoVentec® Glass Rainscreen® Cladding Systems

To make young students feel at home when learning at school, RPM Architekten + Stadtplaner GmbH designed the Conductive Education Centre, in Germany, with eye-catching, colorful facades that beautifully incorporate a StoVentec® Glass Rainscreen® system.

Glass Rainscreen® systems provide several benefits that contribute towards an aesthetically beautiful, energy-efficient, safe, and comfortable building.

Quick Installation

Easy and straightforward to install in any season, Glass Rainscreen® systems reduce the need for labor, which is vital during worker shortages.

Design Flexibility

StoVentec® Glass Rainscreen® cladding comes in different glass panel sizes, suiting the needs of most projects. At Sto, we can manufacture a vast variety of forms because we shape them before the toughening process, which allows for better control for creating grids, lines, joints, and recess designs. Once toughened, you can not cut the panels.

To apply our many color options (and graphics or reflective coating), we fuse it to the back of the glass panel of the rainscreen cladding system, and melt it at >600°C, to create a permanent color that will not damage or fade from exposure to UV light.

High Thermal Performance

Correctly installed StoVentec® Glass Rainscreen® cladding, with proper detailing of the insulation layer, eliminates or minimizes thermal bridging to achieve the target R-value of the insulation.

Enhanced Safety

Fire Breaks

Like most exterior walls in the U.S., acceptable installation of rainscreens must comply with fire-resistance testing requirements, such as ASTM E119 and NFPA 285.

Blast-Tested

The strength and integrity of the StoVentec® glass rainscreen cladding system pass the most stringent blast tests, making it suitable for public spaces such as airports and railway stations.

Wind Resistance

Sufficiently installed stainless-steel wall brackets and aluminum vertical and horizontal support profiles of sub-construction will form a solid structural link between the facade and the supporting wall construction, to absorb wind and dead loads and transfer them to the supportive wall construction.

In Virginia, architect Jeff Davenport chose the StoVentec® Glass Rainscreen® system for his Davenport House due to its tough-modern visual appeal, to reflect the attractive, surrounding landscape.

Why Choose StoVentec® Glass Rainscreen Architecture Systems?

In a single source, StoVentec® Glass rainscreen cladding combines eight components to provide an open joint and back ventilated rainscreen wall system.

1. Sto AirSeal® air and moisture barrier for wall systems
2. Sto RapidGuard™ air and moisture barrier for sheathing joints and corners 
3. Sto RapidGuard™ for rough opening protections
4. Sto RapidGuard™ for flashings and penetrations 
5. Owens Corning Thermafiber® Rainbarrier 45 insulation
6. StoVentro™ Subconstruction
7. StoVentec® Glass Panel prefabricated wall panel

StoVentec® Glass rainscreen cladding ensures excellent air and water tightness, superior thermal performance, and wind, fire, and blast protection, to improve the integrity and longevity of the building.

In addition, StoVentec® Glass rainscreen architecture cladding creates superb indoor environmental quality by providing a comfortable indoor climate, controlling the growth of unhealthy mold, and reducing sound. Furthermore, StoVentec® Glass Rainscreen® cladding’s many glass panel sizes, shapes, and colors, fit all aesthetics and architectural designs. 

Download the StoVentec® Glass Design Guide & Detail Booklet today for more information on rainscreen design and architecture.

The post Rainscreen Architecture: Glass Cladding System Solutions for Architects and Builders appeared first on Sto Corp..

Tight Building Envelope Design

A high-performing building envelope design includes all the elements of a building’s outer shell (walls, roofing, foundations, windows, and doors), effectively controlling 

heat, air, and moisture and preventing rain intrusion. The envelope should also manage noise, solar radiation, airborne pollutants, and the spreading of fire and smoke. Furthermore, the building envelope system should ensure durability, structural strength, pleasing aesthetics, short- and long-term economic feasibility, and code compliance.

The 2021 commercial IECC section C402.5 dictates compliance of the thermal envelope of buildings in Sections C402.5.1 through C402.5.8., and the 2021 residential International Energy Conservation Code (IECC), Section R402.4 dictates that the building of thermal building envelopes will limit air leakage by the requirements of Sections R402.4.1 through R402.4.5.

Benefits of a High-Performing Building Envelope

High-performing building envelopes stop air leaks or drafts and moisture infiltration through an exterior wall by installing continuous air and moisture barrier to control the infiltration and accumulation of water. The benefits of high performing building envelopes include:

• Stops air infiltration through the wall, lessening energy use and costs
• Prevents moisture infiltration by stopping condensation in the wall system to resist structurally damaging mold and mildew 
• Manages air and moisture infiltration in a building’s wall system to reduce the risk of decay and corrosion and significantly reduce costly maintenance and repairs
• Contributes to superior indoor environmental quality (IEQ) by creating comfortable and mold-free buildings with controlled acoustics

7 Must-Haves for High-Performance Building Envelope Systems

Builders and architects aiming to construct high-performing building envelope systems should apply the whole-building system approach to create durable, energy- and cost-efficient, and healthy structures. The whole-building system approach encour­ages the entire construction project team to work together to achieve overall project goals for a tight building envelope.

The seven must-haves for designing a high-performing building envelope system should include thermal, air, vapor, water-shedding control layers, durability, and adequate roofing and glazing systems.

1. Thermal Control Layer

A tight building envelope requires continuous insulation (CI) over all building components without thermal bridges other than fasteners and service openings. CI controls thermal heat transfer, lessens condensation (eliminating unhealthy and structurally damaging mold), and minimizes temperature fluctuations. CI will reduce or eliminate thermal bridging in order to protect the insulation’s R-value.

Sto Rainscreen® Systems Provide Continuous Insulation

StoVentec® Rainscreen® Systems offers a complete solution in a fully-tested, code-approved high-performance back-ventilated Rainscreen® system. The easy-to-install glass rainscreen system provides thermally efficient and continuous insulation, to limit damaging condensation and reduce the cost of heating and air-conditioning.

At the same time, its structural frame enhances safety against fire and wind loads. StoVentec® Rainscreen® Systems provide an established facade that you can finish with traditional plaster,  masonry, or even glass cladding. Our extensive design flexibility offers many textures, shapes, colors, and material type choices to fit your aesthetic and architectural requirements.

2. Air Control Layer

A high-performance building envelope must prevent the transfer of air (and the moisture contained in) between the exterior and interior to regulate the indoor climate. An air barrier must also stand up to the air pressure differences acting on them by minimizing heat gains and losses through convection, conduction, and radiation. Air barriers stop air from  transporting moisture to the interior of a wall assembly, preventing condensation and the damaging effects of moisture accumulation.

Essential components of a high-quality air barrier include: 

• The stiffness and strength to resist forces acting on them during and after construction
• Structural integrity (durability) over the lifetime of the building
• Continuous over the entire building’s envelope
• Impermeable to airflow

StoGuard® Family of Air and Moisture Barriers

Like all Sto wall systems, the StoGuard® family of air and moisture barrier products offers the first line of protection against air leakage and moisture intrusion, which is critical to a high-performing building envelope. The StoGuard® System provides seamless control over moisture and air to improve building performance and occupant comfort. Our air and moisture barrier products include:

• Fluid-applied air and moisture barriers provide a seamless barrier to improve a building’s energy efficiency and resist moisture intrusion and condensation 
• Rough opening protection with a one-component fabric or mesh-based product solution designed for a superior, seamless rough opening protection
• A versatile transition membrane for detailing areas to provide flexible connections and continuity of the air barrier system
• Sheathing joint treatments featuring a one-component fabric or mesh-based product solution designed for seamless joint treatment and sheathing protection

3. Vapor Permeable Water-Restrictive Barrier

A vapor permeable water-resistive barrier (WRB) beneath the siding protects walls from snow, rain, and vapor. The WRB must also allow moisture that makes its way into the wall system from a structure’s interior to diffuse through the assembly and dry. In addition, WRBs often function as a building’s air barrier. 

Managing the flow of water through a building envelope and removing the moisture that inevitably makes its way into it, involves following three basic principles:

1. Deflect the water with properly installed cladding and a water-resistive barrier.
2. Drain the water away from the building envelope by installing drainage mats forming drainage cavities.
3. Provide a WRB with enough permeability so the system can quickly dry.

The optimum perm rating for a WRB stops water from entering the wall cavity and allows moisture vapor that does infiltrate to escape. Of concern, too high a perm will permit moisture from the outside to penetrate the wall system. In contrast, too low a perm will trap the moisture within the wall system. According to Joseph Lstiburek, founding principal of the Building Science Corporation, the ideal WRB perm for balancing the inward and outward moisture movement within the building envelope ranges between 10 and 20 perms. However, a designer should select the specific permeability of a WRB  based on climate and positioning within the wall assembly.

4. Water-Shedding Control Layer

Controlling rainwater penetration into a building envelope must consider the forces (gravity, wind pressure differences, and capillary action) that drive the water, and the building envelope system components needed to regulate and combat these forces. 

Features that control water include:

• Flashing systems
• A well-defined drainage path
• Horizontal and vertical plane changes
• A continuous watertight membrane

Building a cavity wall (drainage or screen wall) provides a concealed open air space and drainage plane.

Drainable EIFS StoTherm® ci Wall Systems Control Water Accumulation

Drainable EIFS StoTherm® ci Wall Systems combines drainage, continuous insulation (CI), and an air and moisture barrier to create a long-lasting, durable, and energy-efficient wall system, which will save money on utilities, repairs, and maintenance. In addition, sustainable StoTherm® ci wall systems also improve indoor comfort and air quality and are available in a wide variety of textured finish options to meet your aesthetic and architectural needs.

5. Durability

A building envelope’s durability and long-term performance depend on its resistance to mold, corrosion, freeze damage, and decay. Unfortunately, building envelopes can also fail due to poor workmanship, design flaws, material problems, etc. Therefore, selecting simple to install and durable products, like StoPanel® MVES ci, will help ensure the long-term performance of your building envelope components. 

StoPanel® MVES ci combines high strength masonry veneer (thin brick, natural stone, ceramic tile, or cultured stone), a continuous air/moisture barrier, and an engineered insulating wall system to provide a durable, air and weather-tight wall system with excellent thermal performance.

Cement Board Stucco

Quick and straightforward to install StoQuik® Silver Systems integrate several components into one system in order to create a high-impact, moisture-resistant exterior wall finish that expedites the delivery time and reduces labor costs compared to traditional stucco: 

• An air and moisture barrier to provide moisture protection
• A drainage mat to drain and dry 
• Cement board substrate for impact resistance 
• Versatile performance and design options of Sto’s textured finishes

Architectural Coatings

Sto’s advanced architectural vapor permeability low-VOC coatings offer fade- and mold resistance, crack bridging, and self-cleaning properties. All features ensure superior protection against outdoor elements, to improve the building’s performance and ensure your structure’s long-term aesthetics. Sto’s architectural coatings come in many textures, sheens, and colors that can be applied either horizontally or vertically.

Hurricane Impact Systems

Sto Hurricane Impact (HI) Systems offer high-impact protection for coastal construction prone to hurricanes and tropical storm winds, water intrusion, and wind-born debris – all of which can lead to building envelope failure. Our Sto HI systems meet the stringent Miami-Dade County, Florida NOA requirements for impact resistance, wind load resistance, and air and water infiltration.

6. The Roof of a High-Performing Building Envelope

A tight building envelope needs a cool roof and roofing insulation to protect the building against solar heat gain, and keep the house and attic space cool. Low thermal mass materials, like tiles, slate, or clay, reflect the sunlight, making them suitable for a cool roof. Cool roofs lessen energy bills, and improve indoor comfort. They can also extend the roof’s service life.

7. Adequate Glazing Systems

The design of a high-performing building envelope should include energy-efficient windows, skylights, and doors that are appropriate to the building’s climate zone. High-quality glazings provide natural light, warmth, and ventilation, to save both energy and money.

In addition, glazings should face south in the northern hemisphere to take advantage of the Sun’s energy in the winter months. Finally, limiting south-facing windows and installing shading devices can help prevent excessive heat gain during the hot summers or in warmer climates.

Choose Sto Corp.’s Systems for High-Performance Building Envelope Components

Fast and straightforward to install, Sto Systems offer architects, developers, and contractors with a tested and proven high-performance building envelope. In a single product, our wall systems deliver on all performance needs, saving time and money and reducing labor, complexity, and risk compared to systems that require piecing together numerous components from multiple sources.

Independent testing shows that Sto systems meet or surpass performance specifications for water infiltration and ventilation, impact resistance, wind load resistance, flame spread, accelerated weathering, and water resistance. In addition, StoVentec systems passed the National Fire Protection Association (NFPA) 285 test, a standard measurement for flammability characteristics of modern exterior wall systems.

For more detailed information on high-performance building envelope systems, download our extensive engineered building enclosure guide today.

The post High Performance Building Envelope Systems: 7 Must-Haves for Any Project appeared first on Sto Corp..

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!

The post 9 Architectural Facades for High Performance Buildings appeared first on Sto Corp..

The colorful facades of the Conductive Education Centre in Munich beautifully incorporate a StoVentec Glass Rainscreen system. The translucent surfaces shimmer in green and blue, while the opaque parts shine in yellow, orange, and red.

On the simplest scale, existing windows can be treated with films, which are applied to existing glass surfaces. Heat is reflected back into the building in the winter to reduce heating costs. Window films can also reduce the amount of solar heat gain, reducing cooling loads for buildings in warmer climates.

Curtain walls improve thermal efficiency

For buildings that have entirely glass facades, curtain walls – a non-structural frame that allows for customization – are designed to keep out moisture and can have energy efficient properties. Per Motley Fool, “a properly glazed curtain wall will improve the thermal efficiency of a building and will cut down on operating costs. In addition, exterior glazed systems work by cutting down on the amount of UV light that can penetrate into the building’s interior.”

One cost effective way to achieve better energy efficiency in glass facades is to reduce the area of visual glass fenestrations. New opaque glass assemblies that provide air and moisture barriers and continuous exterior insulation can be combined with the visual glass to create an all-glass aesthetic, but with far higher energy efficiency at a lower cost than using coated or double and triple glazed wall assemblies. The reduced fenestration area will also reduce occupant comfort issues that are typically mitigated by using additional shading techniques or interior coverings, which can defeat the original intent of a curtain wall glass structure.

Textured and colored glass options

While the benefits of natural daylight to building occupants are numerous, in cases where lighting can be overly abundant, textured and colored glass options are available. This type of cladding also offers shading and enhances privacy. Additional benefits of opaque glass wall assemblies included increased durability, easy maintenance, enhanced acoustical performance, and a wide variety of color and shape options, including back printed custom images.

The post Achieving energy efficiency with glass exteriors in commercial buildings appeared first on Sto Corp..

Technological advancements have allowed for many different innovations in glass, including treatments to improve energy efficiency, emissivity, glare, and coloring. Per Buildings.com,

“…architects, designers and fabricators are using glass to – pardon the pun – push the envelope in their work for exteriors. It’s becoming increasingly common to see large glass envelopes on buildings today. Modern designs, color and energy reduction technology are now infused in a building material that’s been used for centuries.”

Here are four incredible designs from around the word featuring glass exteriors in commercial buildings.

The IAC Building, New York, New York

The IAC Building, InterActiveCorp’s headquarters, is Frank Gehry’s first venture in New York City, which was completed in 2007. Per Wikipedia, “the building appears to consist of two major levels: a large base of twisted tower-sections packed together like the cells of a bee hive, with a second bundle of lesser diameter sitting on top of the first. The cell units have the appearance of sails skinned over the skeleton of the building. The full-height windows fade from clear to white on the top and bottom edges of each story. The overall impression is of two very tall stories, which belies its actual 10-story structure.”

Black Pearl Office Building, Brussels, Belgium

The building, completed in 2014 and designed by ART & BUILD Architect, accommodates 11,000 square meters of office space. Per Archilovers, “The architectural concept is clean and clear, with smooth concrete facings to the corner block and generous glazed curtain walling outlined with steel detailing. In order to obtain BREEAM certification, Art & Build integrated technical solutions including geothermal heat exchangers for heating and cooling requirements, condensing boilers for additional requirements, heat extraction systems incorporated in the HVAC system, rain water recovery for sanitary use and landscape irrigation, and intelligent artificial lighting control.”

La Samaritaine, Paris, France

Once a large department store in Paris, France, La Samaritaine closed down in 2005 due to not meeting safety codes. With design by Tokyo-based SANAA, work is ongoing on the structure, which will transform into offices, a hotel, social housing, children’s nursery, and retail space. Standing out among the many changes is the building’s rippling glass facade.

MP09, Graz, Austria

MP09, the office building of an optics company, is known as “Black Panther” by the local inhabitants and staff. Its mysterious dark gloss makes the building, resting on its bases with the spectacular protruding bow, look like a panther ready to pounce. Graz-based GSarchitects designed an architectural sculpture that is intentionally conspicuous in its urban environment. The dynamic quality of the architecture is enhanced by the use of StoVentec Glass. The black glass panels reflect their environment, which is continuously in motion, making the building a platform for a continuously changing drama.

The post Glass exteriors in commercial buildings: Four incredible buildings with glass facades appeared first on Sto Corp..