Insulating Bathroom Vent In 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.

Insulating bathroom vent in attic.

I was listening to one of your shows earlier and you were talking about how the bathroom vents are vented into the attic. It s not vented out by any means. Insulation problems will lead to other problems like the fan not being able to extract any humidity from the bathroom at all. Bathroom exhaust fans perform an important function by removing excess moisture from your home.

I mean it s right into my insulation. Covering up the soffit vents with loose fill or batts which can happen if you stuff insulation along the eaves is a huge no no. If bath fan ducting isn t properly insulated the moist air from your house will condense inside the duct. Bathroom fan vent code requirements include no venting to attic areas to help reduce mold or structural problems.

For the same reason insulation shouldn t touch the roof s underside. The first step is to head to the attic. The airflow from the soffits to the ridge vent keeps the roof cool and prevents ice dams and the material will block that flow. And i have that problem regarding that.

Bathroom vent fan ductwork insulation insulate the bathroom exhaust vent fan ducts. A very common problem. Water stains on the ceiling around your bath fan may indicate a leak coming from the vent cap on your roof but condensation is the more likely culprit. A common occurrence during the colder winter months many residents may find pooled water on their bathroom floor or discoloration on their ceiling and can t figure out where it s coming from.

The answer it s probably caused by improperly insulated vent ducts running from your bathroom exhaust fan through your attic space.