Bathroom Exhaust To Attic

Your attic is not a temperature controlled environment is never the same temperature as your living space and generally closer to the temperature outside.

Bathroom exhaust to attic.

Wall mount fans are mounted on an external wall of a home and are used if there isn t a way to vent through the roof as in the case of a bathroom on the first floor of a home. Never allow the duct to simply blow into an attic crawlspace or other enclosed area. Bathroom fan sound levels. Example model ventilation codes.

Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot. There are wall mount exhaust fans as well as ceiling exhaust fans. Note that the bathroom vent fan must always exhaust to the outdoors. If you have access to the attic the fan can vent either through a gable wall or roof.

You should never exhaust the bathroom fan directly into the attic. It seems like such an easy solution just leave a bathroom vent hose in an attic. Letting the fan exhaust into an open attic will cause moisture buildup on the underside of the roof. It s all outdoor air anyways right.

However you can vent a bathroom fan through an attic while it terminates on the roof or gable end. Today s homeowner serves cookies to analyze traffic and better serve you. Ceiling fans vent either into the attic or outside through the roof. Allowing the exhaust to vent into your attic can potentially cause several moisture problems.

See bathroom vent duct termination for details about how to terminate the bath exhaust vent duct. Avoid venting through a soffit vent or ridge vent. The exhaust needs to vent outdoors. The building code requires a bathroom exhaust fan to vent outside the building so installation of a new bathroom fan necessarily involves installation of ductwork.

Vent your bath and kitchen exhaust fans through the roof through a special roof hood. If you re simply replacing the fan the ducts should already be set up for you. Venting a bathroom exhaust fan into your attic is never a good idea here are three better options. No you should not vent a bathroom fan directly into an attic.

Exhaust air from toilet rooms and bathrooms shall not discharge into attic crawl space or other areas inside building.