Bathroom Fan Insulation Attic

In un conditioned space such as an attic where otherwise your fan duct will be exposed to cold attic air in winter use insulated solid metal ducting or insulated flex duct.

Bathroom fan insulation attic. This is much easier to do if you have attic access because if you don t you usually have to remove some ceiling drywall and run the ducts along a joist. Through the roof or an exterior gable wall. While insulating you can make some mistakes. The building code requires a bathroom exhaust fan to vent outside the building so installation of a new bathroom fan necessarily involves installation of ductwork.

If bath fan ducting isn t properly insulated the moist air from your house will condense inside the duct. Options for venting a bathroom exhaust fan include best to worst. Insulate your attic access door hatch with weatherstripping and foamboard to r10. The first step is to head to the attic.

Insulate the bathroom exhaust vent fan ducts. Before you rush to the attic or go the roof to check for any leaks make sure the exhaust fan duct is properly insulated and run the fan more frequently for a prolonged period. If you see that your duct isn t insulated at all pick up duct insulation at the home center. Bathroom vent fan ductwork insulation.

You may find that the insulation simply needs to be refastened. To avoid mistakes not running it at all consider installing switches with built in timers.