UL Certifies NFPA 285 Exterior Wall System with Fire-Retardant-Treated Wood
Hoover leads the way! Again! UL recently tested and promulgated a listing for an exterior wall system (EWS) containing pressure-impregnated fire-retardant-treated wood (FRTW), which makes the plan approval process for Type I, II, and III construction quicker and easier for architects. The new NFPA 285 listing, UL System No. EWS0045,