Bathroom Exhaust Fan Leaking Water When It Rains

When it does then there s obviously something wrong.

Bathroom exhaust fan leaking water when it rains.

The exhaust is also on the first floor on the side of the building not the roof. 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. My bathroom fan leaks water during very heavy rains. Here are a few things that you need to check if your fan is leaking during or after the rain.

Many people notice the issue when the bathroom exhaust fan starts dripping on their head as they step out after a shower. The most common reason a bathroom exhaust fan leaks when it rains is because the bath vent hose is in a vertical slope and exhausts on top of the roof. The fan is on the ceiling and t. The tubing or the ducting of the exhaust fan should be insulated and vented to the outside.

When the exhaust fan is on the damper should on and vice versa. It is on the first floor. If your roof vent leaks during heavy rain the rain may be blowing up under the hood and into the vent. After all this is where you take a bath.

I have checked the bathroom fan seal as well and it is not condensation because it is only during heavy rains. If not this is the problem and you can solve it insulating around the duct. It seems like it may be coming in through the vent when the rain wind blows sideways during a heavy rain fall. There may be damaged insulation damaged drywall damaged wood framing and there may be mold growing.

However you shouldn t expect for it to come out of your leaking bathroom exhaust fan or ceiling vent. One most common reason that leads to the leaked fans in the bathroom is the vertical slope of the bath vent hose. Pay close attention to check whether there is insulation around the duct. 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.

We had some water leaking onto the kitchen stove from the exhaust fan above it during the last couple of heavy rains. Bathroom exhaust fan leaking water when it rains. It this is the case you need to create a breathable shield to slow the driving rain drops while still allowing air flow. You can expect water to come out of the shower or the faucet.

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. You can expect your bathroom to get wet. It could be as simple as pulling some debris out of the vent or caulking or more complicated. In many cases if the exhaust is resting on the top of the roof the fans might show leakage signs.

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. I have a bathroom fan that leaks during heavy rains. Check the damper at the fan. The usual cause is condensation inside the duct.