Fixing A Leaky Roof Vent Pipe

Use a pocketknife to scrape rough edges and sharp points from upper end of plastic vent pipe.

Fixing a leaky roof vent pipe.

If you have attic access the easiest way to track down a leak is to go up there with a flashlight and look for the evidence. When you have a leak you don t have that protection. Use the knife blade to scrape the pipe clean and smooth. Roof vent pipes from plumbing or exhaust vents penetrate the roof and are usually sealed using a collar style flashing made out of a flexible material like epdm rubber or flexible pvc.

Roof leaks around vent pipes is relatively common. Follow these steps if you need to do repairs. This is especially true if you can t seem to pinpoint the source of the leak. For example in a lot of cases it could be from around the roof vent pipes.

They can be several feet above the leak or to the right or left of it. 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. Apply a thick bead of lap seal caulk around the seam between the vent pipe and old rubber gasket. Penetrations can include plumbing and roof vents chimneys dormers or anything else that projects through the roof.

Check plumbing vent boots and roof vents if water is entering from that area to cause the leaking roof. Purchase the necessary supplies even if your roof is functioning the way it should be it s a good idea to keep vent pipe flashing in your home. Dealing with a leak around the roof vent pipes can be a huge problem as well. This is not to say that it s not going to be a problem.

There are many possible parts of the roof potentially leaking but one of the most common ones is the area around the roof vent. Cut away the old caulk from around the vent pipe. Roof vent pipes are common areas for roof leaks. A roof that leaks around a vent pipe is a common cause of small water stains on a ceiling or water leaking into a home.

When this happens vents can spring leaks. You re in luck if you re able to pinpoint the source. Luckily materials like vent pipe flashing can be used if you need to repair a roof. Leaking roof vent pipe.

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.