Bathroom Exhaust To Attic

Through the roof or an exterior gable wall.

Bathroom exhaust to attic.

It seems like such an easy solution just leave a bathroom vent hose in an attic. Options for venting a bathroom exhaust fan include best to worst. Climb into the attic and clear away any insulation from around the hole. T he result of the insulation problem around a bathroom exhaust fan is either water stains or mold near the vent of your bathroom.

Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic. Example model ventilation codes. There are wall mount exhaust fans as well as ceiling exhaust fans. See bathroom vent duct termination for details about how to terminate the bath exhaust vent duct.

It may also violate a shingle warranty. If you have access to the attic the fan can vent either through a gable wall or roof. No you should not vent a bathroom fan directly into an attic. While this may seem obvious homeowners may out of convenience direct the vent into either of these locations.

Keep calm if that happens to you. Your attic is not a temperature controlled environment is never the same temperature as your living space and generally closer to the temperature outside. Avoid venting through a soffit vent or ridge vent. You should never exhaust the bathroom fan directly into the attic.

Ceiling fans vent either into the attic or outside through the roof. It cannot move air to a crawlspace or attic. However you can vent a bathroom fan through an attic while it terminates on the roof or gable end. Letting the fan exhaust into an open attic will cause moisture buildup on the underside of the roof.

Insulation problems will lead to other problems like the fan not being able to extract any humidity from the bathroom at all. For optimum performance locate it between the shower and the toilet. Exhaust air from toilet rooms and bathrooms shall not discharge into attic crawl space or other areas inside building. 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.

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. It s all outdoor air anyways right. Bathroom fan sound levels. 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.