Insulating Bathroom Vent In Attic

If bath fan ducting isn t properly insulated the moist air from your house will condense inside the duct.

Insulating bathroom vent in attic.

Insulation problems will lead to other problems like the fan not being able to extract any humidity from the bathroom at all. 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. Bathroom ventilation codes require a bathroom exhaust fan to vent to the exterior not the attic for health and structural reasons. Bathroom fan vent code requirements include no venting to attic areas to help reduce mold or structural problems.

The answer it s probably caused by improperly insulated vent ducts running from your bathroom exhaust fan through your attic space. A very common problem. Bathroom vent fan ductwork insulation insulate the bathroom exhaust vent fan ducts. 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.

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. Bathroom exhaust fans perform an important function by removing excess moisture from your home. T he result of the insulation problem around a bathroom exhaust fan is either water stains or mold near the vent of your bathroom. I mean it s right into my insulation.

The airflow from the soffits to the ridge vent keeps the roof cool and prevents ice dams and the material will block that flow. 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. And i have that problem regarding that. I was listening to one of your shows earlier and you were talking about how the bathroom vents are vented into the attic.

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.