How To Vent Bathroom Exhaust Fan In Attic

You should never exhaust the bathroom fan directly 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. Take a look at the installation manual for your fan brand and model. Your attic is not a temperature controlled environment is never the same temperature as your living space and generally closer to the temperature outside. You can find 4 in.

Duct already wrapped in insulation at home centers. The manufacturer will give guidance on the total duct length permitted. The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood. No you cannot vent your bathroom exhaust fan into the attic.

For optimum performance locate it between. Options for venting a bathroom exhaust fan include best to worst. 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. Drill a reference hole draw a mark on the bathroom ceiling where you d like to install the vent fan.

Measure the vent fan. Although this isn t always possible in attic crawl spaces you should always insulate the duct to prevent condensation problems. Either way the vent will have to go directly to the outside and installed with a vent hood cover.