Building codes are in place to provide a means to safeguard life and protect the public welfare through regulating the design, construction practices, construction material quality (including fire performance), location, occupancy, and maintenance of buildings and structures. When regulating materials, many of the model building codes refer to quality standards developed by standard-setting organizations such as the American Society for Testing and Materials (ASTM). Some building codes and insurance rating organizations also rely on test information from Factory Mutual Research (FM) and Underwriters Laboratories Inc. (UL).

Polyiso manufacturers create products that meet or exceed all Model Building Codes, including:

• International Building Code
• International Residential Code

Because of continuous improvement in the product and years of rigorous testing, Polyiso offers the most extensive range of code approvals for insulation used in roof systems. It remains the only foam plastic insulation product for direct application to steel deck to earn FM Approval for Class 1 Roof Systems. Polyiso is also classified by UL for use in roof systems with direct-to-steel-deck applications of foam plastic insulation under both single-ply and asphalt-based roof coverings.

For more information on polyiso’s fire safety, please refer to PIMA’s technical bulletins: Fire Performance and Roof Systems, Fire Test Definitions and Class A and Class 1 Roof Systems are Not the Same.