Attic Insulation Over Bathroom Fan

There are several options available for the ducting like flexible aluminum ducting.

Attic insulation over bathroom fan.

You may find that the insulation simply needs to be refastened. If bath fan ducting isn t properly insulated the moist air from your house will condense inside the duct. Work from the perimeter of the attic toward the door or hatch so that you don t trample all over the insulation you just put in. I just added r19 unfaced insulation to my attic.

The seams can be taped with housewrap tape. When venting a bathroom exhaust fan make sure to vent the air to the outside rather than into your attic where it can cause mold and mildew to form. Options for venting a bathroom exhaust fan include best to worst. Another approach could be an insulated hvac duct approach.

I had insulation from 1952 that was less than an inch thick. When i got to my exhaust fan for my bathroom i added that last year i went right over the fan and covered it. Caulk or spray foam can be used to seal the box to the ceiling drywall and to seal around the exhaust pipe. I want to make sure that is ok.

If you see that your duct isn t insulated at all pick up duct insulation at the home center. The exhaust fan housing should be covered with an insulated airtight box. How well the insulation around the bath fan will work depends on the ducting greatly. 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 box can be made from rigid foam. Bathroom exhaust fans perform an important function by removing excess moisture from your home. Insulate the bathroom exhaust vent fan ducts.