General · G-3X9M7

UL Firestop System Wall Penetration Detail

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A UL classified firestop system for metallic and nonmetallic pipes and cables passing through a framed gypsum board wall assembly. The wall construction comprises steel studs and gypsum board layers enclosing the opening. Through-penetrants include steel pipes, conduits, copper tubing, PVC or CPVC pipes, and cables with optional tube insulation or pipe covering. The annular space around the penetrants is sealed with fill, void, or cavity materials consisting of a wrap strip and caulk or sealant. The installation achieves specific F ratings of one or two hours and T ratings ranging from one-quarter to two hours depending on the specific items penetrated.

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