Bathroom Exhaust To Attic

No you cannot vent your bathroom exhaust fan into the attic.

Bathroom exhaust to attic.

Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot. It s all outdoor air anyways right. Letting the fan exhaust into an open attic will cause moisture buildup on the underside of the roof. Allowing the exhaust to vent into your attic can potentially cause several moisture problems.

However you can vent a bathroom fan through an attic while it terminates on the roof or gable end. Bathroom fan sound levels. If you re simply replacing the fan the ducts should already be set up for you. 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. Today s homeowner serves cookies to analyze traffic and better serve you. Ceiling fans vent either into the attic or outside through the roof.

There are wall mount exhaust fans as well as ceiling exhaust fans. See bathroom vent duct termination for details about how to terminate the bath exhaust vent duct. No you should not vent a bathroom fan directly into an attic. Venting a bathroom exhaust fan into your attic is never a good idea here are three better options.

This is much easier to do if you have attic access because if you don t you usually have to remove some ceiling drywall and run the ducts along a joist. Avoid venting through a soffit vent or ridge vent. The warm air will exhaust out the duct and enter back into the attic through the soffit vent or ridge vent. Never allow the duct to simply blow into an attic crawlspace or other enclosed area.

Your attic is not a temperature controlled environment is never the same temperature as your living space and generally closer to the temperature outside. If you have access to the attic the fan can vent either through a gable wall or roof. Example model ventilation codes. Exhaust air from toilet rooms and bathrooms shall not discharge into attic crawl space or other areas inside building.

Note that the bathroom vent fan must always exhaust to the outdoors.