A metal pipe or conduit passes through a fire-rated concrete wall, which can be solid or concrete block. The annular space around the penetration is packed with damming material such as backer rod, fiberglass, or mineral wool. CP 25WB firestop caulk is applied on both sides of the wall at the penetration opening.
CP 25WB CAULK ON BOTH SIDES OF WALL DAMMING MATERIAL (BACKER ROD, FIBER-GLASS OR MINERAL WOOL). METAL PIPE OR CONDUIT FIRE RATED CONCRETE WALL (SOLID OR BLOCK)
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