Bathroom Fan Insulation Attic

Insulate the bathroom exhaust vent fan ducts.

Bathroom fan insulation attic.

Bathroom exhaust fans perform an important function by removing excess moisture from your home. Bathroom vent fan ductwork insulation. Seal off the chimney chase with sheet metal and or non combustible caulk. 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.

Insulate your attic access door hatch with weatherstripping and foamboard to r10. 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. The first step is to head to the attic. If bath fan ducting isn t properly insulated the moist air from your house will condense inside the duct.

Caulk foam seal all penetrations into the attic space ie duct chases plumbing chases wiring electrical boxes from lights down below. You may find that the insulation simply needs to be refastened. 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. 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.

While insulating you can make some mistakes. Options for venting a bathroom exhaust fan include best to worst.