Building Codes and Standards

Structural insulated panel wall systems have been included in the International Residential Code (IRC) since 2007.  Inclusion in the IRC recognizes structural insulated panels as equal to other code-approved building systems. Section R610 of the IRC provides a Prescriptive Method that allows builders and design professionals using SIP walls in residential projects to show equivalency to the IRC without conducting or supplying additional engineering. SIP structures can be designed to meet building codes in areas as stringent as California / Los Angeles and Miami / Dade County.

SIP Seismic Performance

The SIPA member ICC ESR-4689 Evaluation Service Listing, as of June 2024, meets the latest versions of ICC Acceptance Criteria AC04 and AC436 illustrating SIP compliance in all Seismic Zones A - F for SIP aspect ratios 1:1, 2:1, and 3.5:1. This cyclic testing was done in accordance with ASTM E-2126-19 for loaded and unloaded wall assemblies. This will eventually replace SIPA ICC ESL-1360.

See SIPA Technical Bulletin 11: Equivalency of SIP Walls to Light Frame Wood Construction Subjected to Seismic Loading. The bulletin demonstrates that SIPs perform equivalent to conventional light frame shear walls for all seismic design categories based on tests of a wide range of SIP aspect ratios and SIP assemblies.

The SIPA member ICC ESL-1360 Evaluation Service Listing illustrates SIPs have allowable in-plane shear wall loads for Seismic Zones A - F as tested by ASTME-2126-05 (Standard Test Methods for Cyclic Reversed Load Test for Shear Resistance of Vertical Elements of the Lateral Force Resisting Systems for Buildings). 

In addition to the Evaluation Reports listed below under Code Listings, Premier Building Systems manufacturer member publish Listing Reports specific to Seismic Categories D, E, and F:

• ESL-1207
• ESL-1360 

SIP Fire Performance

The SIPA member ICC ESR-4689 Evaluation Service Listing, as of June 2024, includes one-hour fire rated assemblies for both SIP walls and roofs. These tests were according to ASTM E-119 and CAN/ULC S101. This will eventually replace the SIPA Intertek 32805 Fire-Rated SIP Assemblies listing.

For residential fire precautions and building code compliance with SIPs, refer to SIPA Technical Bulletin 2: Fire Safety with Structural Insulated Panel Construction.

The following Intertek listing shared by multiple SIPA manufacturers confirms a one-hour fire rating for specific SIP assemblies.  Other SIP manufacturers have proprietary fire test data.  Please contact individual manufacturers and consult the building code for fire requirements specific to your project.

• Intertek 32805 Fire-Rated SIP Assemblies Mar2021

Code Listings for SIPA Manufacturer Members

SIPA members provide recognition of compliance with the International Building Code (IBC) and International Residential Code (IRC) through evaluation reports typically issued by the International Code Council Evaluation Service (ICC-ES) and can also be accessed at www.icc-es.org. SIPA members have access to the SIPA Master Code Report, a code listing shared by a group of SIPA member manufacturers. Click below to access code reports for individual SIPA manufacturers.

• ACME Code Report ESR-4690
• Enercept Code Report ESR-1780
• Enercept Code Report ESR-4693
• Energy Panel Structures Code Report ESR-4697
• Extreme Panel Code Report ESR-4524
• Extreme Panel Code Report ESR-5576 
• FischerSIPS Code Report ESR-4694
• Foard Panel Code Report ESR-4691
• Insulspan Code Report ESR-1295
• Insulspan Evaluation Report CCMC 13016-R
• Lamit Legacy Code Report NER-467
• Murus Code Report ESR-4696
• Murus Polyurethane Code Report ESR-4784
• Porter Code Report ESR-4692
• Preflex Code Report ESR-5318
• Premier Big Sky R-Control Code Report ESR 4782
• Premier Building Systems Code Report ESR-4524
• Quacent Evaluation Report ESR-5041
• Quacent Quality Certificate
• SIPA Master Code Report ESR-4689
• ThermaFoam R-Control Code Report ESR-4780
• ThermaFoam R-Control Code Report ESR-4780 FL - Supplement
• Urban Industries Code Report ESR-4695

Green Building Standards

Airtightness and energy efficiency help SIPs meet the various sustainable building standards. Browse our Project Profiles for SIP building examples that satisfy LEED, ENERGY STAR, DoE Zero Energy Ready and more. Read how SIPs help meet ENERGY STAR and LEED certifications. Look below for more resources on building codes and standards.

Codes and Standards Reference Documents

Click here to purchase the International Residential Code (IRC) at the ICC Store.

• ANSI Standard for SIPs In Wall Applications PRS 610.1-2023
• NAHB National Green Building Standard ICC-700 2020
• Prescriptive Method for Connecting SIP Roofs to Concrete Wall Systems
• Prescriptive Method for SIP Wall Systems
• SIPs Research and Testing at the National Research Council Canada

Several SIPA manufacturer members have obtained Florida Building Code affirmations specific to construction in the state's high velocity hurricane zones.

• SIPA Affirmation for Walls FL28131-R1 (ACME Panel Company, FischerSIPS and PorterCorp)
• SIPA Affirmation for Roofs FL30056-R1 (ACME Panel Company, FischerSIPS and PorterCorp)
• The Murus Company Affirmation for Walls FL10290-R1
• The Murus Company Affirmation for Roofs FL10449-R1