NFBA Achieves Three-Hour Fire Rating for a Post‐Frame Wall System

GLENVIEW, Ill. — The National Frame Building Association(NFBA) has successfully achieved a three‐hour fire rating for a post-frame wall system that can now be incorporated into a post‐frame building without having to go to more expensive nonwood framing systems.

Full‐scale testing of a three‐hour post‐frame fire wall by Underwriters Laboratories(UL), Northbrook, Ill. showed for the first time that a wood‐constructed assembly is a viable alternative to a traditional block wall system. UL testing was completed in Dec. 2011.