Architectural · A-3WKQT

Insulated Pipe Penetration Firestop Detail

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An insulated pipe penetrates a partition wall defined on the floor plan, sealed with a firestopping fill material. A minimum five-eighths inch thickness of fill material is applied within the annulus, flush with both surfaces of the wall. At the point of contact between the pipe and wall, a minimum one-half inch diameter bead of fill material is applied at the interface on both surfaces. The penetrating pipe features a nominal one-inch, one-and-a-half-inch, or two-inch thick 3.5 pcf fiberglass pipe covering bearing a UL classification mark.

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