For nearly 60 years architects designers and code authorities have relied on ul fire resistance rated wall floor ceiling roof ceiling and column and beam designs for code compliant installations.
Ul rated roof assemblies.
It also serves as a key differentiator for products within the roofing market.
More than 1 500 designs are currently available through ul s fire resistance directory or online certifications directory.
The ul certification mark on fire resistant products systems and assemblies is relied on by code enforcement officials and buyers to provide confidence that products and systems meet regulatory and market requirements.
Fixtures column indicates 24 x 48 fixture only unless noted.
For additional information on usg fire rated assemblies cad bim content and specifications.
Have a question about assemblies.
It is a key differentiator for products within the exterior wall assembly market.
As the global safety science leader ul helps companies to demonstrate safety enhance sustainability strengthen security deliver quality manage risk and achieve regulatory compliance.
Ul standard ul 1256 edition 4 standard for fire test of roof deck constructions edition date.
The listed assemblies in this document may not contain all components of the approved assembly.
If you are unfamiliar with ul fire resistance ratings begin with a review of meeting code requirements pg.
Helpful documents and resources for usg s roof assemblies can be found on this page.
Hold down clips are required when fire rated board weighs less than 1 0 lb sq.
Fire rated assemblies are tested and certified in their entirety.
As explained there these ratings are applied to certain types of roof ceiling and floor ceiling construction assemblies which are tested and assigned hourly ratings mandated by building codes or other building safety requirements.
Assemblies are tested with the method and cri teria established in standard ul 263 also known as a2 1 astm e119 and nfpa 251.
The ul certification mark on roofing products and assemblies is relied on by code enforcement officials and buyers to verify that your products and systems meet regulatory requirements.
