Wall firestop spacer for SLP series direct vent pipe. When penetrating a combustible wall, a wall firestop must be installed. To further prevent drafts, the wall firestop should be caulked with caulk with a minimum of 300F continuous exposure rating to seal gaps. A wall shield firestop must be placed on each side of an interior wall. A minimum 1-1/2 in. (38 mm) overlap of attached heat shields must be maintained. Whenever a non-combustible wall is penetrated, the wall shield firestop is only required on one side and no heat shield is necessary. Specifications Size: 0.361 in.
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