Roof Leaking Around Vent Pipe

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

Roof leaking around vent pipe.

Roof leaks around vent pipes is relatively common. 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. 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. Dealing with a leak around the roof vent pipes can be a huge problem as well.

Rusty and cracked vent pipe collars will allow the water to first pool around then seep through the interior walls of your home causing great damage. Vent pipe leaks are very common and vent pipe flashing should be regularly inspected to prevent roof leaks. This is further sealed with a sealant designed for roofs. How to fix a leaking roof vent pipe flexible roof sealant apply flexible roof sealant black jack roof patch rubberized roof cement from a can or tube to fill holes gaps flashing and loose shingles around vent pipe.

When your roof was installed each vent pipe received a flexible boot to seal water around the round surface of the 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. These boots vary in quality flexibility and longevity. There are many possible parts of the roof potentially leaking but one of the most common ones is the area around the roof vent.

It basically does the same job as the chimney flashing. The rubber boot for the roof vent covers the hole and seals the gap around the pipe. Deterioration of the underlying metal flashing and roof cement around vent pipes is also a common occurrence. You ll also be surprised to know that a lot of homeowners are at a loss as to why that area is leaking.

Steps for fixing a leaking rooftop vent pipe. If the collar is cracked or damaged it will need to be replaced. As mentioned there s a rubber boot that serves as a seal to prevent water from leaking in. Vent pipe leaks during heavy rain can occur if you have cracks in your vent pipe boot or flashing.