Furnace Roof Exhaust Pipe Leaking

If you have a condensation leak with a standard efficiency then its exhaust or flue pipe may be incorrectly sized.

Furnace roof exhaust pipe leaking.

Steps for fixing a leaking rooftop vent pipe. 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. It helps maintain proper atmospheric pressure in a building s waste system and channels the exhaust gasses to the vent. Cut away the old caulk from around the vent pipe.

Vent pipe leaks during heavy rain can occur if you have cracks in your vent pipe boot or flashing. 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. If your furnace exhaust pipe or flue pipe is leaking it can be a sign of a much bigger problem. Use a pocketknife to scrape rough edges and sharp points from upper end of plastic 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. There are many possible parts of the roof potentially leaking but one of the most common ones is the area around the roof vent. 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. Roof leaks around vent pipes is relatively common.

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. The pipe leading to the main roof vent is called the vent stack. Apply a thick bead of lap seal caulk around the seam between the vent pipe and old rubber gasket. A standard efficiency furnace extracts some heat from the combustion gases and quickly vents them out the exhaust or flue pipe.

The plumbing vent pipe is a vertical pipe that attaches to the drain line and runs through the roof of a home. Here s what to look for.