Bathroom Vent Fan Venting Into Attic

However you can vent a bathroom fan through an attic while it terminates on the roof or gable end.

Bathroom vent fan venting into attic. Bathroom ventilation codes require a bathroom exhaust fan to vent to the exterior not the attic for health and structural reasons. All municipalities have different requirements but some do not draw a hard line on requiring exhaust fans. It seems like such an easy solution just leave a bathroom vent hose in an attic. Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof.

No you cannot vent your bathroom exhaust fan into the attic. This involves running ductwork from the fan usually though an attic and out through the roof. Options for venting a bathroom exhaust fan include best to worst. Bathroom code does address the issue of moving odor and moisture laden air from the bathroom to the outside.

You should never exhaust the bathroom fan directly into the attic. The exhaust vent must terminate outdoors. Through the roof or an exterior gable wall. Surprisingly bathroom fans are not required by some building codes.

Bathroom fan vent code requirements include no venting to attic areas to help reduce mold or structural problems. In order to accomplish this the roof has to have a hole cut in it. When venting a bathroom exhaust fan make sure to vent the air to the outside rather than into your attic where it can cause mold and mildew to form. Your attic is not a temperature controlled environment is never the same temperature as your living space and generally closer to the temperature outside.