Bathroom Vent Vented To Attic

It s all outdoor air anyways right.

Bathroom vent vented to attic. Health and structural issues when a bathroom is not vented properly. You should never exhaust the bathroom fan directly into the attic. This involves running ductwork from the fan usually though an attic and out through the roof. Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof.

Options for venting a bathroom exhaust fan include best to worst. Likewise kitchen fans should vent through vents in the roof moving moisture and odors from the interior to the exterior. 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. These stem vents should be properly connected to the bathroom ducts to ensure that moisture is traveling to the exterior not the attic space.

In order to accomplish this the roof has to have a hole cut in it. Your attic is not a temperature controlled environment is never the same temperature as your living space and generally closer to the temperature outside. 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. Leave the drill bit sticking through the roof so you can find the hole.

It seems like such an easy solution just leave a bathroom vent hose in an attic. Through the roof or an exterior gable wall. It may also violate a shingle warranty. Condensation from moisture laden air can cause health and structural problems as well especially when the bathroom vents discharge moist air into attics or crawl spaces.

Try to keep it close to the fan location. Start in the attic and drill a hole through the roof in the desired vent location. From up on the roof use a jigsaw or reciprocating saw to cut a 4 in. It cannot move air to a crawlspace or attic.

While this may seem obvious homeowners may out of convenience direct the vent into either of these locations. No you cannot vent your bathroom exhaust fan into the attic. 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.

Leaking and damaged vents as well as improperly installed ones also can cause problems.