How To Vent Bathroom Exhaust Fan In Attic

The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood.

How to vent bathroom exhaust fan in attic.

For optimum performance locate it between. Although this isn t always possible in attic crawl spaces you should always insulate the duct to prevent condensation problems. 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. Measure the vent fan.

No you cannot vent your bathroom exhaust fan into the attic. Either way the vent will have to go directly to the outside and installed with a vent hood cover. 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. Drill a reference hole draw a mark on the bathroom ceiling where you d like to install the vent fan.

Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic. You can find 4 in. Options for venting a bathroom exhaust fan include best to worst. Through the roof or an exterior gable wall.

Take a look at the installation manual for your fan brand and model. You should never exhaust the bathroom fan directly into the attic. Duct already wrapped in insulation at home centers.