Bathroom Vent Through Wall Or Roof

This discussion is now found at bathroom vent up through roof.

Bathroom vent through wall or roof.

An exhaust vent fan can exhaust out through a gable end side wall or out through a soffit overhang. And a proper roof vent doesn t require any visible nails. Bath exhaust fans routed up through the roof. Vents placed on gable ends don t work very well unless they are powered.

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 bathroom exhaust ventilation fan disperses air through an opening in the fan housing which is usually 3 inches in diameter and ideally faces in the direction of the ventilation system outlet. It is because of this that many builders tend to advise against this method. This old house general contractor tom silva shows how to properly install a roof mounted bath fan vent.

Here in the north we vent the bathroom exhaust through a bulkhead to the exterior wall the exhaust ducting is insulated and has a slight slope to the exterior wall to allow any condensation to escape we also install a 5 6 length of plywood at the eaves so the exhaust can t get into the attic space. Vent your bath and kitchen exhaust fans through the roof through a special roof hood. Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot. I recommend that my clients vent their bath fans out a gable wall if at all possible when not using an hrv or erv that is.

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. In order to accomplish this the roof has to have a hole cut in it. If you vent through the roof condensation will drip back into the interior.

For the best results the vent should terminate through a gable wall of the roof assembly. See below for a shopping list and tools subscribe. Bathroom exhaust venting does not have to exit up through the roof and in fact that s not necessarily even the best termination. Again no offense meant but best results would be a continuous ridge vent no.

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.