Q. The exhaust fan in my bathroom is vented into the attic. To prevent this, make sure all bath and kitchen fans vent to the outside.
Eave vents are less obtrusive than wall vents and can be installed in a few hours.
This particular vent also has deflectors to prevent cold air from backdrafting into your bath. Rigid metal ducting is best because the smooth interior of the duct creates very little air resistance, but metal flex duct is easier to use when you need to make a lot of bends. Bury the ductwork under the insulation to prevent the warm air from cooling and condensing inside. Privacy policy .