Bathroom Exhaust Fan Goes Into Attic

This could potentially lead to mold problems down the road.

Electric fan jeep tj. Proper bath fan exhaust. Mold can spread rapidly in an attic. No you cannot vent the bathroom exhaust fan into the soffit vents.

Click here to learn more about attic mold. Options for venting a bathroom exhaust fan include best to worst. Bathroom ventiliation fans are an essential component to any bathroom.

Bath fans should always exhaust outside through the roof via insulated duct and terminate on a dampered roof cap. Either way the vent will have to go directly to the outside and installed with a vent hood cover. Bathroom ventilation codes require a bathroom exhaust fan to vent to the exterior not the attic for health and structural reasons.

If you vent the bathroom exhaust fan to close to the soffit vents which are vented plates under your homes outer edge and roof your home the air can be sucked right back into the attic from the soffit. Can you vent a bathroom exhaust fan into the soffit vents. Bathroom code does address the issue of moving odor and moisture laden air from the bathroom to the outside.

Bathroom exhaust fans perform an important function by removing excess moisture from your home. Bathroom fan vent code requirements include no venting to attic areas to help reduce mold or structural problems. The correct way to vent a bathroom fan through an attic is to terminate the vent either to the roof or to the gable wall.

This article describes routing bath exhaust fan duct upwards through an attic or roof space or downwards through a floor or crawl space. Mold is commonly found in attics with bath fans that exhaust moist air into the attic. Youve now put the water right back up into the attic without realizing it.

Surprisingly bathroom fans are not required by some building codes. All municipalities have different requirements but some do not draw a hard line on requiring exhaust fans. 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.

Without a bathroom ventilation fan your bathroom surfaces will become moist during a shower or bath. They exhaust moist or stinky air outdoors while pulling in cleanerdrier air from your surrounding rooms. Bathroom ventilation fan duct routing routing a bath vent duct down out or up through an attic or roof out.