Bathroom Fan Insulation Attic

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.

Bathroom fan insulation attic.

Insulate the bathroom exhaust vent fan ducts. If you see that your duct isn t insulated at all pick up duct insulation at the home center. You may find that the insulation simply needs to be refastened. The first step is to head to the attic.

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. To avoid mistakes not running it at all consider installing switches with built in timers. Seal off the chimney chase with sheet metal and or non combustible caulk. Caulk foam seal all penetrations into the attic space ie duct chases plumbing chases wiring electrical boxes from lights down below.

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. 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. Bathroom vent fan ductwork insulation.

Insulate your attic access door hatch with weatherstripping and foamboard to r10. 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.