Bathroom Exhaust Fan To 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.

Bathroom exhaust fan to attic. Each fan vents separately out the roof. Both bathrooms are vented by a single in line fan that has one exhaust vent running through the roof. Climb into the attic and clear away any insulation from around the hole. Through the roof or an exterior gable wall.

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. Avoid venting through a soffit vent or ridge vent. A bird s nest in a bathroom vent will greatly reduce or eliminate the effectiveness of a bathroom exhaust fan.

You should never exhaust the bathroom fan directly into the attic. No you cannot vent your bathroom exhaust fan into the attic. This article describes routing bath exhaust fan duct upwards through an attic or roof space or downwards through a floor or crawl space. Bathroom ventilation fan duct routing routing a bath vent duct down out or up through an attic or roof out.

Letting the fan exhaust into an open attic will cause moisture buildup on the underside of the roof. It s also important to note that if you install a roof vent cover for a clothes dryer you must remove the metal screen because it will catch lint and may turn into a fire hazard. One in line centrifugal fan can be mounted in the attic to exhaust the moisture from two bathrooms. Draw a mark on the bathroom ceiling where you d like to install the vent fan.

Each bathroom has its own exhaust fan. In all cases the ducting needs to conduct the exchaust to the building exterior and needs to terminate in an animal proof vent cover. The warm air will exhaust out the duct and enter back into the attic through the soffit vent or ridge vent.