Wrap structural components in an extra layer of security with Flak Jacket protection for Trus Joist TJI joists. The proprietary coating helps one-hour floor and ceiling assemblies meet new 2012 IRC fire-protection requirements. Flak Jacket–wrapped joists can be cut and drilled as usual with no special tools, and they accommodate standard hangers for smooth installation. Weyerhaeuser | 888.453.8358 | woodbywy.com