How To Vent Bathroom Exhaust Fan In Attic

Options for venting a bathroom exhaust fan include best to worst.

How to vent bathroom exhaust fan in attic. The correct way to vent a bathroom fan through an attic is to terminate the vent either to the roof or to the gable wall. You should never exhaust the bathroom fan directly into the attic. Take a look at the installation manual for your fan brand and model. Either way the vent will have to go directly to the outside and installed with a vent hood cover.

For optimum performance locate it between. Duct already wrapped in insulation at home centers. Measure the vent fan. Drill a reference hole draw a mark on the bathroom ceiling where you d like to install the vent fan.

The manufacturer will give guidance on the total duct length permitted. In general you can try venting a bath vent fan down but the combination of down direction elbows and total run length may mean that it s ineffective. 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.

No you cannot vent your bathroom exhaust fan into the attic. Although this isn t always possible in attic crawl spaces you should always insulate the duct to prevent condensation problems. You can find 4 in.