Special bathroom fan roof vents with an internal damper that opens only when the fan is blowing will send moist air outdoors and keep cold air out of the house. A bathroom is an ideal place for mold to take root. But more importantly, it will help prevent moisture -related problems, such as the growth of mold and mildew.
I have just replaced the bathroom extractor fan and found that the exhaust is vented into the roof space and not the outside environment.
Due to the shape of the roof there are no soffits to vent through, so it has to go through the roof.
Fantec makes some nice remote fan systems - virtually silent in operation and you only need one fan for the (or more) bathrooms.
Venting this fan into the attic is simply asking for problems.
Bathroom vent fans must be vented to the out of doors. The excessive moisture will cause condensation on the roof members, insulation and eventually cause mold. It is never OK to vent directly into an attic even if the attic itself is vented. Make sure your bath fan is vented properly to avoid mol mildew and other issues.
Question: How far from the bathroom window does the fart fan vent outlet have to be?
The best placing for the bathroom fan is somewhere between the shower and toilet. For the fan to operate at optimal efficiency, it should be no more than six feet from the sidewall where you will be venting the duct. First, the fan should be located in the area of the bathroom that is exposed to the most moisture.
We include bathroom venting code citations and the text also explains why bathroom vent fans are needed and describes good bath vent fan choices, necessary fan capacity . In this how-to video, This Old House general contractor Tom Silva provides an escape for bathroom moisture.
Connect properly sized rigid metal duct pipe to the fan housing, and run it as directly as possible out through the roof or an outside wall. Q: I have saved three of your articles over the years that address bathroom fans. One warns about venting fans upward through the roof, which can result in condensation running back into the fan and staining the ceiling.
Your solution was to run the duct horizontally in the attic to the nearest gable wall.
The damper protects clod air flow back in the bathroom , so it needs to be as close to the insulated portion of the exhaust (near the fan ) as possible. Insta-Insulation - Duration : 1:14. And homeowners today may be reluctant to retrofit bathrooms with an appliance that requires venting to snake through attics, joists, soffits, and ultimately . Get to some of the most frequently asked exhaust fans and bathroom ventilation questions.
A new bathroom exhaust fan will clear the steam and help prevent mold. Slide the housing to the side and disconnect the vent duct.
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