How To Vent Bathroom Exhaust Fan In Attic

No you cannot vent your bathroom exhaust fan into the attic.

How to vent bathroom exhaust fan in attic.

Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic. The manufacturer will give guidance on the total duct length permitted. You should never exhaust the bathroom fan directly into the attic. Drill a reference hole draw a mark on the bathroom ceiling where you d like to install the vent fan.

Duct already wrapped in insulation at home centers. Although this isn t always possible in attic crawl spaces you should always insulate the duct to prevent condensation problems. Through the roof or an exterior gable wall. Take a look at the installation manual for your fan brand and model.

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. You can find 4 in. Measure the vent fan.

Your attic is not a temperature controlled environment is never the same temperature as your living space and generally closer to the temperature outside. 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. The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood.