Wood Frame / Steel Frame Wall Calculators

Design tools to help coordinate energy code thermal insulation compliance and building code water vapor control compliance


Continuous Insulation Resource Guides

A collection of helpful FACTS Sheets and Quick Guides for code-compliant applications of foam plastic insulating sheathing (FPIS), available for both 2024 and 2021 I-codes.


Educational Program: 2024 IECC Commercial Envelope

Presented as a live, full-day course at the 2025 Colorado Chapter of ICC Educational Institute, Jay Crandell, P.E. and Thomas Culp, Ph.D. cover the importance of the building thermal envelope in the context of the 2024 International Energy Conservation Code.


Educational Program: 2021 IECC Commercial Envelope

Presented at the Colorado Chapter of ICC Educational Institute, this course covers the importance of the building thermal envelope in the context of the 2021 International Energy Conservation Code. 


ANSI/ABTG FS200.1 – 2022: Standard for Use of Foam Plastic Insulating Sheathing (FPIS) in Building Envelopes: Above-grade Walls

This comprehensive consensus standard contains a wealth of practical and actionable guidance for code-compliant use of foam sheathing on above-grade walls. 


Design Guide for Above-grade Walls with FPIS ci

A step-by-step design sequence to help you develop a code-compliant, high-performance wall suitable to your specific project.


Ready-to-Use FPIS ci and Vapor Retarder Options for Above-Grade Walls

Developed using ABTG's calculators for wood-frame and steel-frame above-grade wall assemblies, this “ready-to-use” resource provides a selection of practical and code-compliant options for FPIS ci and vapor retarders appropriate to each U.S. climate zone for above-grade walls of wood- or steel-framed construction. Other wall assembly components must be specified according to the code as required.


Building Industry Educator Resources

A collection of free resources for industry educators to use as part of class experiences or presentations.


Code Compliance Reports

Complete listing of Technical Evaluation Reports for foam sheathing products


Foam Sheathing Standards and Applications

Key standards for foam sheathing and applications of foam sheathing referenced by the building codes


Installation Accessories

Information materials such as tapes and fasteners that may be useful for installing foam sheathing products


Code References

A comprehensive listing of references to foam sheathing in the model building codes along with code adoption information for your project location


Case Studies

Projects using FPIS ci in a variety of applications.


For more information on individual FPIS products, visit members of the Foam Sheathing Committee (FSC) of the American Chemistry Council.