A plumbing vent stack penetrates the roof structure with required wood blocking underneath for support. The roof membrane connects directly to the roofing material and turns down into the top of the stack as coordinated with the roofing contractor. The vent stack extends a minimum of 12 inches above the roof surface.
VENT STACK 12" MIN ROOF STRUCTURE BLOCKING AS REQ'D. COORDINATE WITH ROOFING CONTRACTOR ROOFING MATERIAL CONNECT WITH ROOF MEMBRANE AND TURN DOWN INTO TOP OF STACK
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