Furnace Roof Exhaust Pipe Leaking

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.

Furnace roof exhaust pipe leaking.

Steps for fixing a leaking rooftop vent pipe. 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. There are many possible parts of the roof potentially leaking but one of the most common ones is the area around the roof vent. 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.

It helps maintain proper atmospheric pressure in a building s waste system and channels the exhaust gasses to the vent. Vent pipe leaks during heavy rain can occur if you have cracks in your vent pipe boot or flashing. The plumbing vent pipe is a vertical pipe that attaches to the drain line and runs through the roof of a home. The pipe leading to the main roof vent is called the vent stack.

Today i noticed water leaking from a section of the pvc exhaust pipe which travels upward from the furnace across the ceiling and out of basement wall where it vents into my backyard. Use the knife blade to scrape the pipe clean and smooth. 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.

If you have a condensation leak with a standard efficiency then its exhaust or flue pipe may be incorrectly sized. Cut away the old caulk from around the vent pipe. To be more specific the pipe that comes out of the unit is attached to this leaking section which is attached to a pvc elbow then another piece of pipe. Here s what to look for.

If your furnace exhaust pipe or flue pipe is leaking it can be a sign of a much bigger problem. A standard efficiency furnace extracts some heat from the combustion gases and quickly vents them out the exhaust or flue pipe.