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Boring Home Ownership Stuff...

Fixing a Drip at the Bathroom Fan

1/4/2020

4 Comments

 
The bath exhaust fan is designed to remove moisture.  Do you sometimes get that drip, drip, drip from the fan, on the floor.  Bath exhaust fans should not drip. If yours does, there’s something wrong with it. 

First, poke your head up into your attic and check the exhaust ducting or tubing; it should be insulated, straight and vented to the outside. There shouldn't be any dips or bends, as water can puddle and you want to assure proper air flow.  If there is no insulation around the duct, there could be condensation, when the warm air contacts the cold duct.  Adding insulation around the duct may solve the problem.
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The fan’s damper can also get stuck in the open position, allowing hot air into the cool duct and creating condensation. Check the small damper at the fan. It should open when the fan is on and close when the fan turns off. This damper responds to fan pressure and gravity. 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.

​For many years, contractors installed bath fan vent ducting incorrectly, creating a bend or low loop to catch condensation. This just allows water to accumulate and may cause a large leak when the water lets go.


Also assure the bath vent terminates to the exterior.  Any bath vent that terminates in the attic or near an attic vents can cause moisture issues in the attic.
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4 Comments
Septic Tank Service Ocala link
8/26/2022 10:25:58 pm

I really like seeing websites that perceive the value of providing a quality useful resource for free. Good work

Reply
Wasp Nest Removal Fort Wayne link
8/28/2022 08:26:07 am

Veery nice post

Reply
Salem Bathroom Remodel link
3/30/2023 12:59:07 am

Great article! Installing a bathroom ventilation fan is an important step towards improving indoor air quality and preventing moisture-related problems such as mold and mildew. A properly installed and sized ventilation fan can help remove excess humidity, odors, and pollutants from the bathroom, improving overall comfort and health. Homeowners should consider factors such as fan size, noise level, and energy efficiency when selecting and installing a ventilation fan. It's also important to follow safety guidelines and building codes, and to hire a licensed professional if needed.

Reply
Perth Thots link
5/16/2024 04:29:28 am

This was lovely tto read

Reply



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