Bathroom Exhaust To Attic

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

Bathroom exhaust to attic.

Example model ventilation codes. 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. Avoid venting through a soffit vent or ridge vent. It s all outdoor air anyways right.

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. No you cannot vent your bathroom exhaust fan into the attic. There are wall mount exhaust fans as well as ceiling exhaust fans.

Keep calm if that happens to you. Ceiling fans vent either into the attic or outside through the roof. Bathroom fan sound levels. It may also violate a shingle warranty.

Exhaust air from toilet rooms and bathrooms shall not discharge into attic crawl space or other areas inside building. T he result of the insulation problem around a bathroom exhaust fan is either water stains or mold near the vent of your bathroom. For optimum performance locate it between the shower and the toilet. Options for venting a bathroom exhaust fan include best to worst.

Letting the fan exhaust into an open attic will cause moisture buildup on the underside of the roof. Through the roof or an exterior gable wall. Insulation problems will lead to other problems like the fan not being able to extract any humidity from the bathroom at all. If you have access to the attic the fan can vent either through a gable wall or roof.

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. You should never exhaust the bathroom fan directly into the 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. No you should not vent a bathroom fan directly into an 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. 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. 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.

Draw a mark on the bathroom ceiling where you d like to install the vent fan.