Exhaust Fan Roof Vent Leaks During Heavy Rain

A good roofing contractor would have installed a roof vent that prevents water intrusion.

Exhaust fan roof vent leaks during heavy rain.

The areas of your roof that are prone to pooling water can lead to a leak during heavy rain. You need to get a contractor or roofer to check out the exterior vent cover. We have inspected the attic and there is no rotting wood and we cannot figure out how to stop the problem. It this is the case you need to create a breathable shield to slow the driving rain drops while still allowing air flow.

I have a bathroom fan that leaks during heavy rains. Homepage roof repair quick fix for roof vent leak during heavy rain. Roof vent leaking is always a problem. Quick fix for roof vent leak during heavy rain by rooflast posted on july 25 2019 july 11 2020.

Roof leaks in heavy rain learn why. The cause is going to be the same as leaking bathroom fans if it leaks during rain basically the vent cover on the exterior is defective. Not to mention your gutters simply may not be able to keep up with the downpour. When the water leaking through the roof it will cause a big mess and more than just that it can also cause water damage to the roof.

I have checked the bathroom fan seal as well and it is not condensation because it is only during heavy rains. And on occasion a hard driving rain with whipping wind will cause roof vents to leak water. The basic plumbing of a house can sometimes put a house at risk for roof leaks. How do i fix.

Depending on the plumbing setup some houses may be more vulnerable to leaks during heavy rains than others. It seems like it may be coming in through the vent when the rain wind blows sideways during a heavy rain fall. The flapper may be missing or poorly sealed or the flashing is damaged. Even if your roof is well maintained or fairly new heavy rainfall is still a cause for concern.

Leakages can occur with something as simple and essential as a ventilation fan duct. Check the flashing on the roof look for popped up nail heads proper installation shingles should top half and not the bottom half and just the general condition of it. Have someone climb on the roof and assess the area around your stove vent. If your roof vent leaks during heavy rain the rain may be blowing up under the hood and into the vent.

This is especially true with those mushroom looking roof vents. You may find that your vent cap was blown off or that the shingles around the base of your vent were torn blown off leaving your screws nails exposed to the rain or that the seams on your vent are not sealed tight or that the roofing tar around the base of the vent are brittled and cracked from too much sun. In the unfortunate chance that you have a roof vent style that can let water in through its sides then this could be a reason why it s leaking during a hard rain.