Bathroom Exhaust Vent Terminates In Attic

Otherwise you re inviting a moisture mold rot insect problem in the building.

Bathroom exhaust vent terminates in attic. 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. Options for venting a bathroom exhaust fan include best to worst. It cannot move air to a crawlspace or attic. Bathroom exhaust fan termination fittings locations clearance distances.

You can find 4 in. This section notes that air exhausted from the bathroom must be sent outdoors not indoors to the same residence or indoors to any other dwelling unit. No you cannot vent your bathroom exhaust fan into the attic. You should never exhaust the bathroom fan directly into the attic.

The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood. Your attic is not a temperature controlled environment is never the same temperature as your living space and generally closer to the temperature outside. Although this isn t always possible in attic crawl spaces you should always insulate the duct to prevent condensation problems. That will take it from the bath exhaust fan to a discharge point.

Now where the discharge point is is going to be up to you. A lot of options. This article describes the proper closure or termination of bathroom exhaust fans fan ducts to prevent drafts heat loss leaks or even bird or rodent pest entry to the building. And you would use a termination point a discharge point.

The exhaust vent must terminate outdoors. Air comes in through the soffit vents and exits through the roof vents depending on design and code the roof vents can be louvers in the walls on the sides of the house capped holes in the top of the roof and or an apex vent. The two most common locations for a bathroom vent to terminate is on top of the roof or through an exterior side wall. We also review recommended clearance distances between the bath exhaust duct end opening and other building features such as a gas fired.

Duct already wrapped in insulation at home centers. Through the roof or an exterior gable wall. Typically you can take that out to the nearest side wall like a gable wall and bring it right through the wall. This point where the vent terminates and discharges the bathroom air should be checked for damage and to see that the air is actually exhausting properly.

While this may seem obvious homeowners may out of convenience direct the vent into either of these locations.