Weyerhaeuser has added Flak Jacket protection to its Trus Joist TJI joists to meet building code requirements for fire resistance. The specialty coating allows builders to use a single layer of gypsum and no expensive mineral wool to achieve a one-hour fire-rated floor assembly in multifamily buildings (the gypsum layer is unnecessary in unfinished residential basements) and comply with the new 2012 International Residential Code fire protection requirements. 888.453.8358. www.woodbywy.com
Weyerhaeuser Flak Jacket
