A vent stack or other pipe penetration is a common spot for a roof leak. The process for detailing a pipe penetration with a low-slope roof relies on redundant seals and compatible products. Here’s how to make a pipe penetration watertight on a EPDM membrane roof.
Commercial roofing systems have tested methods for sealing common roof penetrations like pipes, ducts, chimneys, and skylights.In addition to multiple skylights—including a 6-ft. round one—this roof had plumbing and mechanical penetrations and an 8-ft.-wide masonry chimney with leaky flashing. Methods vary for dealing with penetrations, but a skilled roofer should be able to solve most problems with tested assemblies. Detail drawings are often available from the roofing manufacturer.
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Flashing Boot
Adequately seal vulnerable vent penetrations through the roof with this galvanized flashing and flexible rubber collar.
This tool makes tearing off shingles easier and faster, providing powerful leverage that allows you to work comfortably. Its beveled teeth and wide blade make it easy to remove nails and push shingles off the roof.
Prolonged exposure to the sun and weather can compromise the rubber gasket on standard vent flashing. Use this to quickly and permanently fix failed seals or to help protect the gasket in new-construction applications.
The 10-in. Jobsite Saw PRO has a wider table, a new dust-control port, and a more versatile fence, along with the same reliable safety mechanism included in all SawStop tablesaws.
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