Bathroom Vent Fan Dripping Water

This damper responds to fan pressure and gravity.

Bathroom vent fan dripping water. Fill gaps and holes using a flexible roof sealant. Water drips from bathroom exhaust fan two common reasons. During the winter when the warm air meets the cold air from the attic it leads to condensation.

The first step is to head to the attic. It also may be that the damper flap is loose or missing and is allowing in water. The problem might be the condensation in the cold duct.

In most of the dripping water from the bathroom fan cases this is the main culprit that you have to consider first. You may find dripping water during or shortly after a shower. There is a good chance that there is condensation inside the duct.

You may notice water dripping during or shortly after taking a shower. Create a more secure water barrier by replacing the flashing and surrounding shingles. Many people notice the issue.

You will notice the problem mainly in the winter. Redirect water away by installing what s called a cricket. If the bathroom fan is dripping water when it rains it means that the flashing or some part of the vent cover is allowing in water.

It should open when the fan is on and close when the fan turns off. Condensation in the duct. In short you will have to get someone onto the roof to fix it.

Eventually the water drip back to the bathroom through the exhaust fan. Water from the roof. Builder s best roof vent cap.

This is the first thing you have to check. 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. Check the small damper at the fan.

The fan s damper can also get stuck in the open position allowing hot air into the cool duct and creating condensation. Another potential source is a buildup of ice on the roof in winter which may melt in reaction. Replace the cover of the chimney.

Here are the possible solutions. Most vent connectors through the roof or sidewall should also have a damper to keep cold air out and it should open and close with fan operation.