Attic Vent Pipe Leak

Someone took a shortcut.

Attic vent pipe leak.

Fix a leaky roof vent pipe with a oatey rubber gasket. Transition coupling either plastic like this or banded rubber to join a 3 in. Is unusual although it may be required by your local plumbing code. We had assembled the exhaust vent pipes using pvc pipe that goes up through the ceiling and on into the attic where it connects via a y pipe to the main vent pipe going out to the roof.

First of all going from 3 in. See below for a shopping list and tools subscribe to. If you re one of them then you re not really surprised. Use a pocketknife to scrape rough edges and sharp points from upper end of plastic vent pipe.

Roof leaks around vent pipes is relatively common. You ll also be surprised to know that a lot of homeowners are at a loss as to why that area is leaking. 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. Vent humid air from kitchens and bathrooms to the outside instead of the attic to avoid this problem.

Dealing with a leak around the roof vent pipes can be a huge problem as well. Attic condensation is due to humid air leaking or vented into the attic. This old house general contractor tom silva shows how to create a watertight seal around a vent pipe. Steps for fixing a leaking rooftop vent pipe.

Vent pipe leaks during heavy rain can occur if you have cracks in your vent pipe boot or flashing. Sometimes vents like this had to be. The leaking may first be seen in the attic but if you don t catch it right away you may see water coming into the house dripping on the floor. Apply a thick bead of lap seal caulk around the seam between the vent pipe and old rubber gasket.

Vent pipes penetrate all the way through the roof in several locations of the house and each one needs to be maintained to keep water out. Cut away the old caulk from around the vent pipe. There are many possible parts of the roof potentially leaking but one of the most common ones is the area around the roof vent.