How Do I Vent Out Attic From Bathroom Fan Through

Let the bathroom vent fan run throughout your bath or shower and just as importantly leave it on for at least 15 minutes after you re finished to fully air out.

How do i vent out attic from bathroom fan through.

Can you vent a bathroom exhaust fan into the soffit vents. From inside the attic drive a nail through the roof directly above the bathroom vent fan. From outside use 4 inch hole saw to cut hole for wall cap. This will serve as a reference point for positioning the wall cap.

No you cannot vent the bathroom exhaust fan into the soffit vents. 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. The best way to do it is to give the bathroom exhaust fan its own direct vent to the outside of your home and not into the attic where it can mix with the air causing the issues mentioned above. This setup requires an in line centrifugal fan mounted in the attic drawing air simultaneously from both bathrooms see photo.

From the roof find the nail and use the utility knife to cut roof shingles from around the nail. Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot. Vent your bath and kitchen exhaust fans through the roof through a special roof hood. The 2nd bathroom vent drips on the floor and is ruining the ceiling.

The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood. The master bathroom and the 2nd bathroom vent through the roof and through the same opening. This involves running ductwork from the fan usually though an attic and out through the roof. It eliminates the need for routing ductwork through the house and these fans usually dry the bathroom more quickly.

Do let your fan run long enough. Center the nail between two rafters. The correct way to vent a bathroom fan through an attic is to terminate the vent either to the roof or to the gable wall. Slide a flat pry bar underneath the shingles around the nail to break the weather seal.

Drive nail through house wall from attic. Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof. In this video this old house general contractor tom silva explains how to vent a bathroom fan. How do i properly vent a bathroom fan into an attic.