Similar to a drain trap vents allow sewer gas to leave your home through your roof rather than going elsewhere.
Gas flue roof vent leak.
But some roof air vents sit fairly flat to the roof with a mushroom style hood and unprotected sides.
To aid in removing the vent pipe a thimble or slip joint may be used.
Furnace metal gas vent leak.
Also known as the type b this vent is operating on the natural air convection.
Rain water was leaking through the roof into the attic and into the furnace closet.
When the vent is withdrawing air from the house it expels the gas outside through the vent.
If the draft hood is damaged replace it with a new one of the same size.
One easy fix that may work is to pour a quart of water down each of your drains.
If that doesn t get rid of the odor it s time to call a professional.
A flue pipe with dripping water could have to do with rainwater entering so replace the flue cap on the roof.
Like all installations that poke through the roof sometimes a flue pipe develops leaks that result in water leakage into the attic or roof space when it rains.
Make sure to center the draft hood over the vent hole properly straighten it and tighten it up or replace the screws if needed.
This structure generally uses the furnace vent pipe through roofbecause the b venting pipe is designed in vertical manner.
In a gas heated home a flue pipe vents the gases out through the roof.
When vents diminish a building s indoor air pressure.
And on occasion a hard driving rain with whipping wind will cause roof vents to leak water.
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.
Video shows recommended and verified repair.
