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International Code Council Adopts SIPs into IRC

icc_logoStructural Insulated Panels (SIPs) achieved a major milestone in their history May 22, 2007 when the International Code Council (ICC) voted to adopt the building system into the International Residential Code (IRC), Section R614. Builders wishing to use SIP walls in residential projects in jurisdictions that have adopted the IRC will not need to show equivalency to the IRC through additional engineering. SIP walls are included in the IRC for buildings that are no greater than 60 feet in length, 40 feet in width, and two stories high.

Approved SIP wall panels are 4 1/2 inches and 6 1/2 inches thick and up to 10 feet tall. According to the Structural Insulated Panel Association, the organization that championed SIP adoption into the IRC, the building site must be limited to a maximium design wind speed of 130 mph Exposure A, B, or C; a maximum roof snow/live load of 70 psf; and Seismic Zones A, B, and C. A registered ICC-ES evaluation report will not be required of manufacturers of SIPs for applications within the parameters of Section R614, which requires that all SIPs be made under a quality control program approved by a third-party quality assurance agency accredited by the International Accreditation Service. Each panel produced must bear a certificate of inspection or stamp of the approved quality assurance agency. For more information, visit www.sips.org