Bathroom Vent Through Wall Or 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.

Bathroom vent through wall or roof.

This involves running ductwork from the fan usually though an attic and out through the roof. The 2nd bathroom vent drips on the floor and is ruining the ceiling. I prefer to run a bath vent to outdoors via a horizontal line that goes across an attic and out through a gable end wall or one that vents down and outside through a roof overhang or soffit. If you vent through the roof condensation will drip back into the interior.

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. Vents placed on gable ends don t work very well unless they are powered. This old house general contractor tom silva shows how to properly install a roof mounted bath fan vent. See below for a shopping list and tools subscribe.

Bath exhaust fans routed up through the roof. Bathroom exhaust venting does not have to exit up through the roof and in fact that s not necessarily even the best termination. And a proper roof vent doesn t require any visible nails. For the best results the vent should terminate through a gable wall of the roof assembly.

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. And of course a bathroom with a window doesn t require an exhaust 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. An exhaust vent fan can exhaust out through a gable end side wall or out through a soffit overhang.

The master bathroom and the 2nd bathroom vent through the roof and through the same opening. Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof. This discussion is now found at bathroom vent up through roof. Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot.

If you vent through a soffit where attic vents are often located the moisture will get sucked back up into the attic or roof venting. In order to accomplish this the roof has to have a hole cut in it.