Bathroom Vent Vented To Attic

Health and structural issues when a bathroom is not vented properly.

Bathroom vent vented to attic.

From up on the roof use a jigsaw or reciprocating saw to cut a 4 in. 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. Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof.

Leaking and damaged vents as well as improperly installed ones also can cause problems. Options for venting a bathroom exhaust fan include best to worst. It seems like such an easy solution just leave a bathroom vent hose in an attic. Try to keep it close to the fan location.

Leave the drill bit sticking through the roof so you can find the hole. Your attic is not a temperature controlled environment is never the same temperature as your living space and generally closer to the temperature outside. It may also violate a shingle warranty. This involves running ductwork from the fan usually though an attic and out through the roof.

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. Likewise kitchen fans should vent through vents in the roof moving moisture and odors from the interior to the exterior. It s all outdoor air anyways right. You should never exhaust the bathroom fan directly into the attic.

While this may seem obvious homeowners may out of convenience direct the vent into either of these locations. 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. In order to accomplish this the roof has to have a hole cut in it. However you can vent a bathroom fan through an attic while it terminates on the roof or gable end.

No you should not vent a bathroom fan directly into an attic. So can you vent a bathroom exhaust fan into the attic. It is because of this that many builders tend to advise against this method. No you cannot vent your bathroom exhaust fan into the attic.

These stem vents should be properly connected to the bathroom ducts to ensure that moisture is traveling to the exterior not the attic space.