Exhaust Pipe On Roof Leaking Water

Roof vent pipes are common areas for roof leaks.

Exhaust pipe on roof leaking water.

When the vent pipe boot cracks your roof is open to a water leak. But if you notice that your tailpipe is leaking or dripping water out from it then it means your exhaust system must have water inside it. During a rainstorm some rain will fall directly into the open end of the vent pipe. Cut away the old caulk from around the vent pipe.

When the roof vent is leaking the actual cause must be identified first. This happens because while your engine heats up the exhaust system produces heat as well which presents as vapor in your tail pipe. Use the knife blade to scrape the pipe clean and smooth. Water can also enter your home if the roof vent itself has been disrupted.

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. This is no reason to be alarmed because the cause is usually no big deal. Sun exposure and heat especially during the summer can cause the rubber boot to crack creating the space for water to leak in. Apply a thick bead of lap seal caulk around the seam between the vent pipe and old rubber gasket.

Not all collar leaks are due to bad rubber boots of course. Periodic maintenance can prevent roof leaks. 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. This rainwater makes its way down the vent and ultimately to your home s sewer line.

Use a pocketknife to scrape rough edges and sharp points from upper end of plastic vent pipe. In the normal course of events you won t see water coming from the exhaust system of the vehicle. Vent pipes are roof maintenance items that should not be overlooked. If your roof was constructed with cheap quality vent pipe boots these will likely need more maintenance and replacement over the lifetime of your roof.

Steps for fixing a leaking rooftop vent pipe. Other causes of leaking roof vent are including broken seams on the metal base loosen nails and rusty metal collars around the vent pipe. When water is running from your exhaust after your car has been running for a period of time you should be concerned.