Neoprene plumbing stack flashing

Roofing · Roof/Wall Flashings · printed page 20 (PDF page 21)

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Neoprene Plumbing Stack Flashing Stack Flashings Systems on Roofs

Text in the illustration

check here for tight seal
plumbing stack
check to ensure that no more than the lower half of the flange is exposed
flashing should be glued to roof deck and shingles installed over the flashing should also be glued (not nailed) in place
no nails should be driven through the flashing flange but, if any are present they will require sealing
ensure that the bottom edge of the flange directs water out onto the surface of the roof
check for buckling or stretching of the flange

Generated explanation

The illustration shows a plumbing vent stack penetrating a shingled roof through a neoprene flashing boot and flange. The boot seals tightly around the pipe, while the upper portion of the flange lies beneath the shingles and the lower portion discharges water onto the roof surface. Annotations specify that no more than the lower half of the flange should be exposed and that the flashing and overlapping shingles should be glued rather than nailed in place. Inspection callouts emphasize checking the pipe seal, flange buckling or stretching, and sealing any nails that penetrate the flange.

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