Roof Leaking Around Exhaust Fan

There are many possible parts of the roof potentially leaking but one of the most common ones is the area around the roof vent.

Roof leaking around exhaust fan.

We had some water leaking onto the kitchen stove from the exhaust fan above it during the last couple of heavy rains. There may be damaged insulation damaged drywall damaged wood framing and there may be mold growing. This is no fancy over the stove exhaust system just a round circular fan that sits flush up against the ceiling and vents to the roof. The first step is to head to the attic.

Many people notice the issue when the bathroom exhaust fan starts dripping on their head as they step out after a shower. This creates the seal. It s common to find stained ceilings around bathroom exhaust fans in minnesota as well as stains in the attic around where the bathroom exhaust fan terminates at the roof. Water stains on the ceiling around your bath fan may indicate a leak coming from the vent cap on your roof but condensation is the more likely culprit.

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 video shows one possible way to do that. In the unfortunate chance that you have a roof vent style that can let water in through its sides. During the last storm it even started leaking through the ceiling light which is about 4 feet away from the exhaust fan on the ceiling.

In winter when the warm moist air from the bathroom hits cool air in the attic or outdoors it condenses sending drips back down the ductwork. Leading to roof leaks around skylights. This is why roofers add a flashing to the vent cap. If your leaking bathroom exhaust fan has been going on for some time it may be a very good idea to remove the actual bathroom exhaust fan and check for damage in the ceiling cavity.

It this is the case you need to create a breathable shield to slow the driving rain drops while still allowing air flow. If your roof vent leaks during heavy rain the rain may be blowing up under the hood and into the vent. If bath fan ducting isn t properly insulated the moist air from your house will condense inside the duct. The usual cause is condensation inside the duct.

Roof leaks around vent pipes is relatively common. 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.