Vents For Bath Fan Through The Roof

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.

Vents for bath fan through the roof.

Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof. The 2nd bathroom vent drips on the floor and is ruining the ceiling. The roof contractor recommends the soffit to minimize protrusions through the roof. The 2 pipes one a 4 master and the other a 3 2nd do not go through the ceiling but into a common box that goes through the roof.

It eliminates the need for routing ductwork through the house and these fans usually dry the bathroom more quickly. This involves running ductwork from the fan usually though an attic and out 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. The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood.

I have gotten mixed opinions on whether to vent the new fan through the roof or through the soffit eave. Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot. Take the end of the duct with the connector fitting and attach it to bath vent fan. Pass the opposite end of the duct through the hole in roof.

Vent your bath and kitchen exhaust fans through the roof through a special roof hood. I am getting a new roof installed and tear off and likely a lot of plywood and am simultaneously getting a new bath vent fan. We explain how to install bathroom exhaust fans or vents the vent ducting the vent termination at the wall soffit or roof vent fan wiring bath vent duct insulation bath vent lengths clearances routing and we answer just about any other bathroom ventilation design or installation question you may have. Run a thick bead of tri polymer sealant along the underside of vent hood.