How do ICS-SIPs react to fire?
Fire requires three components, fuel, ignition and oxygen. SIPs have no ‘air’ within their solid cores of insulation. The fire cannot “run up the wall” cavity even when balloon framed. SIPs have passed every standard fire test that is required of wood based or Type IV construction. A key element of fire safety is protection of the SIPs and any other underlying structure with thermal barriers like gypsum wallboard. ICS-SIPs are rated as a Class 1 panel. Manufactures across North America have proven the fire performance of SIP systems through some of the most extensive fire assembly testing in the construction industry. The results of this destructive testing allow documentation of SIP performance under rigorous test standards. National standards like ASTM-E119, ASTM-E84 and UBC 17-5 have been met by protecting SIPs in a similar fashion as other wood based structures. ‘One Hour’ fire resistive assemblies are achieved by combinations of underlying structure and protection of that structur
