General · G-C47AC

UL Firestop System at Floor Penetration

Materials

Elements

About this detail

This firestop detail shows through-penetrants including steel pipe, iron pipe, or conduit passing through a floor assembly. The annular space is sealed with packing material and a fill, void, or cavity material such as sealant or putty, with optional duct wrap material applied. The system achieves two and three-hour F, T, FT, FH, FTH, and W ratings along with low air leakage ratings at ambient and four hundred degrees Fahrenheit. The UL system number is F-A-1094.

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