Bathroom Exhaust To Attic

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.

Bathroom exhaust to attic.

It may also violate a shingle warranty. See bathroom vent duct termination for details about how to terminate the bath exhaust vent duct. Insulation problems will lead to other problems like the fan not being able to extract any humidity from the bathroom at all. The warm air will exhaust out the duct and enter back into the attic through the soffit vent or ridge vent.

Climb into the attic and clear away any insulation from around the hole. It s all outdoor air anyways right. There are wall mount exhaust fans as well as ceiling exhaust fans. No you should not vent a bathroom fan directly into an attic.

Options for venting a bathroom exhaust fan include best to worst. Exhaust air from toilet rooms and bathrooms shall not discharge into attic crawl space or other areas inside building. For optimum performance locate it between the shower and the toilet. 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.

Ceiling fans vent either into the attic or outside through the roof. 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. Dumping bathroom exhaust into an attic or under roof space invites costly mold contamination frost under the roof in freezing climates moisture damage to roof sheathing possibly even plywood delamination or rot roof failures and shorter roof shingle life. Example model ventilation codes.

You should never exhaust the bathroom fan directly into the attic. Draw a mark on the bathroom ceiling where you d like to install the vent fan. Through the roof or an exterior gable wall. Bathroom fan sound levels.

Letting the fan exhaust into an open attic will cause moisture buildup on the underside of the roof. No you cannot vent your bathroom exhaust fan into the attic. However you can vent a bathroom fan through an attic while it terminates on the roof or gable end. Keep calm if that happens to you.

Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic. If you have access to the attic the fan can vent either through a gable wall or roof. While this may seem obvious homeowners may out of convenience direct the vent into either of these locations. It cannot move air to a crawlspace or 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.