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AG Design Library - American Gypsum

WebUL Certifies Proprietary Design with Fire-Retardant-Treated Wood UL recently tested and promulgated a listing for a new two-hour load bearing wood-frame wall assembly containing pressure impregnated fire-retardant-treated wood (FRTW), a move that makes it quicker and easier for building officials to approve plans for Type III construction. WebDetermine the fire endurance rating of a wall assembly having one layer of 5/8 inch Type X gypsum wallboard attached to wood studs on the fire exposed side (interior, see Figure … screenplay terms

Fire Wall Assemblies Resource Center James Hardie

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