Bathroom Fan Attic Insulation Blow

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Bathroom fan attic insulation blow. Insulation problems will lead to other problems like the fan not being able to extract any humidity from the bathroom at all. It can cause you a lot of problems with mold and mildew forming on the underside of your rafters and decking as well as getting into your insulation. You can buy a bags of cellulose from lowes fluff it up into a garbage bags and dump into attic after you are done on top of the area where you disturbed insulation. I recently installed a bathroom exhaust fan.

I think you need to go into attic regardless as the fan housing probavly has brackets attached to the attic joists. I used flexible 4 aluminum duct to the exhaust damper on the roof. Mar 8th 2018 2 12 pm. You should never exhaust the bathroom fan directly into the attic.

Your attic is not a temperature controlled environment is never the same temperature as your living space and generally closer to the temperature outside. A typical bath fan is rated to move 50 cubic feet per minute of air when it s operating but most actually move about half of their rated air flow. Get tips on installing sufficient attic ventilation to vent the air that gets pulled up there. This is non usable space and it is well ventilated with ridge and soffit ventilation so it does get cold in the winter.

Find out whether you have to worry about an attic fan blowing your insulation around. T he result of the insulation problem around a bathroom exhaust fan is either water stains or mold near the vent of your bathroom. Mold can spread rapidly in an attic. I ve spent a lot of time in attics looking at problems with insulation air sealing hvac systems and ductwork.

In un conditioned space such as an attic where otherwise your fan duct will be exposed to cold attic air in winter use insulated solid metal ducting or insulated flex duct. The duct runs in my attic above the bathroom ceiling two story home. Jim asks is it ok to have a bath exhaust fan vent into my attic no it s never a good idea to have any exhaust fan in your home dump all that hot moist air in your attic. Insulate the bathroom exhaust vent fan ducts.

I ve also seen why so many bathroom ventilation fans don t move much air. Then feed 1 2 a bag of fill into the machine and turn on the hose to start blowing the insulation. Keep calm if that happens to you. No you cannot vent your bathroom exhaust fan into the attic.

Proper bath fan exhaust. Bath fans should always exhaust outside through the roof via insulated duct and terminate on a dampered roof cap. Connect the hose to the insulation machine.