Vent Fan Through Roof With Damper

Do the same thing with a roof cap although it may not need a spring due to its more horizontal orientation.

Vent fan through roof with damper.

If the hood s duct has a wall cap it should have a spring holding its damper shut when the fan is off. Most roof caps for bath fan exhausts have a light aluminum backdraft damper which rests on a sealant strip which is basically a foam piece of weatherstripping. Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot. This involves running ductwork from the fan usually though an attic and out through the roof.

Builder s best 012635 galvanized steel roof vent cap with removable screen damper 4 diameter collar black 4 7 out of 5 stars 618 18 80 18. Vent your bath and kitchen exhaust fans through the roof through a special roof hood. In order to accomplish this the roof has to have a hole cut in it. The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood.

Make sure the damper isn t obstructed or stuck. Comes with a black steel roof cap. Start with the outside cap. If you can t hear anything it could be the damper is stuck.

Find the vent hood on your roof or exterior wall. Roof vent kit from broan is designed to vent kitchen or bath exhaust fans through a slanted roof. If you hear the fan running try listening and turn the fan off to see if you hear the damper close when the air flow stops holding it open. Use rigid metal ducting aluminum or galvanized steel with lengthwise seams facing up and joints sealed with foil tape or duct mastic or rigid plastic pipe.

80 0 20 oz 19 99 19 99. Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof. This sealant strip is installed to keep cold air from coming in and according to a broan customer service rep it also helps to prevent unbearable metal on metal chatter. There s a damper on the fan housing too but the outside damper is much more likely to stick.

I can feel some water around the metal wrapping of the vent where there is an opening. Also see if the damper itself is bent or being blocked from closing completely.