Continuous Insulation (ci) Systems

The world-class building-science experts at Sto continue to lead the way in advancing energy efficiency, durability and aesthetic appeal. Today’s energy codes and regulations reflect many of the design principles embodied in our Continuous Insulation (ci) Systems, and the proven performance of Sto’s next-generation EIFS appeals to designers, contractors and owners alike.

StoTherm® ci Wall Systems (EIFS)

Integrated Wall Systems that deliver the best in performance, sustainability and design flexibility.

Sto’s next-generation StoTherm® ci systems integrate the following key elements: continuous insulation (ci), an air/moisture  barrier, drainage and a variety of textured finish options to create a superior, sustainable wall cladding. This high-performing, 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 life-cycle costs. 

Key Components of the Sto Continuous Insulation (ci) System

Waterproof Air Barrier

Drainage Cavity

Continuous Insulation

Textured Finishes


System Features

Waterproof Air Barrier
Protects the wall from moisture intrusion minimizing risk of water damage and associated repair costs.

High R-Value
Continuous insulation with high R-values provides significant energy cost savings by eliminating thermal bridging.

Code Approved
Complies with both ICC and IECC code requirements for continuous insulation.

Outbound Dew Point
Prevents condensation and freeze damage by placing the dew point outside the stud wall cavity.

Reduced Structural Loads
StoTherm® claddings are very lightweight, resulting in reduced structural cost requirements.

No Mechanical Fasteners
No penetrating nails or screws to attach the insulation means no thermal bridging.

Low Maintenance Cost
Coatings and finishes with advanced acrylic and Lotus-Effect technologies resist dirt pickup, peeling and cracking.

Lowest Life-Cycle Cost
StoTherm® ci claddings have the lowest life cycle costs compared to non-insulated brick and stucco claddings.

Premium Finishes & Coatings
Sto high performance finishes and coatings provide superior weatherability and resistance to UV fading, mold and mildew.


Technical Services

Continuing Education on Continuous Insulation

Featured Tech Article

ts-awesome-file-text-o  Design Considerations for Rigid Foam Plastic Insulation in Exterior Walls


Explore the Continuous Insulation Configuration Tool to help guide you to what products are right for your project.



StoTherm® ci

Superior energy savings, design freedom and versatility.

StoTherm® ci is a high-performance, exterior-wall cladding system that integrates a seamless air and moisture barrier with continuous insulation (ci) and advanced drainage capabilities. The result: excellent protection against moisture intrusion, as well as substantial energy savings thanks to a thermally efficient building envelope that enhances interior climate control and comfort. StoTherm® ci System works in any climate and in full compliance with today’s energy and building codes.  And because what covers the outside is just as important as the advanced elements inside, StoTherm® ci also provides a wide range of protective and decorative finish options to distinguish your project.



ts-awesome-file-text-o  StoTherm® ci brochure – S881

System Bulletin

ts-awesome-file-text-o  StoTherm® ci Lotusan® – System Bulletin

ts-awesome-file-text-o  StoTherm® ci Classic – System Bulletin

ts-awesome-file-text-o  StoTherm® ci Essence – System Bulletin


StoTherm® ci Lotusan® L100G
ts-awesome-file-text-o PDF ts-awesome-fileWord Document

StoTherm® ci Classic A100G
ts-awesome-file-text-o PDF
  ts-awesome-fileWord Document

StoTherm® ci Essence E100G
ts-awesome-file-text-oPDF ts-awesome-file Word Document

StoTherm® ci Lotusan®

StoTherm® ci Classic

StoTherm® ci Essence

StoTherm® ci XPS

Durable, high performance, continuous insulation wall system.

A fully-tested system providing superior air and weather tightness, excellent long-lasting thermal performance and durability, incorporating StoGuard® liquid-applied air and moisture barrier and Owens Corning Foamular CI-C or Dow Styrofoam™ Panel Core 20 Insulation. This sustainable, high-performance wall system helps lower energy costs and reduces the carbon footprint of buildings. In addition, StoTherm® ci XPS offers unmatched aesthetic choices thanks to a wide range of decorative and protective finishes available in virtually unlimited colors.



ts-awesome-file-text-o  StoTherm® ci XPS Sell Sheet – S871

System Bulletin

ts-awesome-file-text-o  StoTherm® ci XPS Lotusan® – System Bulletin

ts-awesome-file-text-o  StoTherm® ci XPS Classic – System Bulletin

ts-awesome-file-text-o  StoTherm® ci XPS Essence – System Bulletin


StoTherm® ci XPS Lotusan® L100X
ts-awesome-file-text-o PDF ts-awesome-fileWord Document

StoTherm® ci XPS Classic A100X
ts-awesome-file-text-o PDF
  ts-awesome-fileWord Document

StoTherm® ci XPS Essence E100X
 ts-awesome-file Word Document

StoTherm® ci XPS Lotusan®

StoTherm® ci XPS Classic

StoTherm® ci XPS Essence

StoTherm® ci Accessories


Sto Mesh Corner Bead Standard

Sto Mesh Corner Bead Standard provides a solution to create true and straight corners which are resistant to chipping and cracking in StoTherm ci wall systems.

The Sto accessory is made of an angled strip of mesh (90° angle) reinforced with a plastic rail, providing a cost-effective and easy-to-apply alternative to the process of wrapping building corners with mesh reinforcement layers.

Sto Mesh Corner Bead Standard is compatible with all Sto basecoat products and provides strength and protection against everyday knocks, enhancing the long-term durability of the façade.

Drip Edge_1

Sto Drip Edge Profile

Sto Drip Edge Profile is a PVC accessory with integral reinforcing mesh that creates a drip edge and plaster return in Sto’s two wall systems.  Its intent is to control the direction of dripping water and help protect the building enclosure from moisture intrusion in vulnerable areas such as fascia returns, balcony undersides and other projecting building elements.

Sto Drip Edge Profile is easy to apply, eliminating labor and costs associated with cutting of drip reveals in foam insulation.  The accessory also provides additional crack resistance with its integral mesh reinforcement and helps achieve straighter, cleaner lines at plaster returns.


Support Documents

Related Links

Air & Moisture Barriers

Explore our StoGuard® family of Air & Moisture Barriers.

Read more
Backup Wall Systems

Learn about our StoEnergy Guard™ high-performance System.

Read More

Browse our vast collection of finishes used with our ci Systems.

View Finishes
Need Help?





Operating Hours:
Monday-Friday | 8:00 am – 5:00 pm (EST)


Sto Corp.
3800 Camp Creek Parkway SW
Building 1400 • Suite 120
Atlanta, GA 30331
Phone 1 (800) 221-2397
Fax (404) 346-3119