Bathroom Vent Leaking Water When It Rains

It seems like it may be coming in through the vent when the rain wind blows sideways during a heavy rain fall.

Bathroom vent leaking water when it rains.

If your roof vent leaks during heavy rain the rain may be blowing up under the hood and into the vent. You look up half expecting to see the shower head somewhat extended only to see the ceiling vent. 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. We have inspected the attic and there is no rotting wood and we cannot figure out how to stop the problem.

Besides the roof it is also possible though unlikely that your bathroom fan vent goes to the exterior vertical wall and it may have just enough slope that water is still dripping. 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. A drop of water falls on your head. Another potential source is a buildup of ice on the roof in winter which may melt in reaction to the warm air from the bathroom.

The first steps would be looking at the vent up close and looking inside the bathroom fan housing during a rain to see where the water is actually coming from. We had some water leaking onto the kitchen stove from the exhaust fan above it during the last couple of heavy rains. Water from the roof. It is not likely that water will ever get high enough to flood this vent.

And on occasion a hard driving rain with whipping wind will cause roof vents to leak water. I have a bathroom fan that leaks during heavy rains. It could be as simple as pulling some debris out of the vent or caulking or more complicated. 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.

What s required to fix it depends on what the problem is. Whether wind driven rain will be a problem remains to be seen. Bathroom exhaust fan leaking water when it rains. Vent cap with a proper stand off from the roof.

It could be as simple as pulling some debris out of the vent or caulking or more complicated. Fixer1234 jun 16 17 at 17 14. I have checked the bathroom fan seal as well and it is not condensation because it is only during heavy 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 re now at a loss as to why water came out of there. In this article we ll discuss in full everything related to the issue of water dripping from bathroom exhaust fan or ceiling vent when it rains.