Fix Roof Vent Leak

Fix a leaky roof vent pipe with a oatey rubber gasket.

Fix roof vent leak.

There are many possible parts of the roof potentially leaking but one of the most common ones is the area around the roof vent. Some roof leaks are tough to locate. The roof vent pipe is installed cut through the roof and around the pipe attached to the roof is surrounded with rubber boot as insulation for the gap between the pipe and roof. Fixing roof leaking around a vent pipe.

Damaged vent pipe collars typically v ent pipe leaks occur at the collar surrounding the base of the vent pipe where it breaks through the surface of the roofing material. This old house general contractor tom silva shows how to create a watertight seal around a vent pipe. Cut away the old caulk from around the vent pipe. If you notice moisture around your chimney during or after a rain you may have one or multiple issues.

Use a pocketknife to scrape rough edges and sharp points from upper end of plastic vent pipe. Check plumbing vent boots and roof vents if water is entering from that area to cause the leaking roof. But some roof air vents sit fairly flat to the roof with a mushroom style hood and unprotected sides. If your ceiling has a plastic vapor barrier between the drywall and the attic insulation push the insulation aside and look for flow stains on the plastic often water runs to openings in the vapor barrier such as at ceiling light fixtures.

Sometimes the water shows up at a ceiling spot distant from the leak. Although caulking around the roof vent can fix the problem for a while it s not a permanent solution. Use the knife blade to scrape the pipe clean and smooth. Roof leaking around chimney.

Apply a thick bead of lap seal caulk around the seam between the vent pipe and old rubber gasket. The source for leaks around your chimney can be difficult to pinpoint. Moreover this can cause more problems since it may mask the damage that s already been done to your home by the leak. Starting at the top.

Steps for fixing a leaking rooftop vent pipe. If your roof vent leaks during heavy rain the rain may be blowing up under the hood and into the vent. Look for cracks in the base of flexible rubber flashing or broken seams in metal varieties of vent pipe flashing the rubber gasket that surrounds the vent pipe could be rotted. These collars consist of a metal base generally made out of aluminum and a rubber boot integrated into the top of the collar.

In this situation it s best to call in a professional roof repair service to.