Bathroom Exhaust To Attic

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.

Bathroom exhaust to attic.

No you cannot vent your bathroom exhaust fan into the attic. Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic. It may also violate a shingle warranty. Bathroom fan sound levels.

Avoid venting through a soffit vent or ridge vent. T he result of the insulation problem around a bathroom exhaust fan is either water stains or mold near the vent of your bathroom. Keep calm if that happens to you. Options for venting a bathroom exhaust fan include best to worst.

For optimum performance locate it between the shower and the toilet. Your attic is not a temperature controlled environment is never the same temperature as your living space and generally closer to the temperature outside. Through the roof or an exterior gable wall. It cannot move air to a crawlspace or attic.

Exhaust air from toilet rooms and bathrooms shall not discharge into attic crawl space or other areas inside building. See bathroom vent duct termination for details about how to terminate the bath exhaust vent duct. Example model ventilation codes. However you can vent a bathroom fan through an attic while it terminates on the roof or gable end.

Ceiling fans vent either into the attic or outside through the roof. You should never exhaust the bathroom fan directly into the attic. It s all outdoor air anyways right. 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.

The warm air will exhaust out the duct and enter back into the attic through the soffit vent or ridge vent. Insulation problems will lead to other problems like the fan not being able to extract any humidity from the bathroom at all. It seems like such an easy solution just leave a bathroom vent hose in an attic. While this may seem obvious homeowners may out of convenience direct the vent into either of these locations.

If you have access to the attic the fan can vent either through a gable wall or roof. Draw a mark on the bathroom ceiling where you d like to install the vent fan. Climb into the attic and clear away any insulation from around the hole. 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.

There are wall mount exhaust fans as well as ceiling exhaust fans.