Frost In The Attic Roof

Frost itself doesn t do any damage but once it melts things get wet and then damage occurs.

Frost in the attic roof.

Frost gets into the attic from air leaks or attic bypasses. Frost itself doesn t do any damage but once it melts things get wet and then damage occurs. During winter conditions attic frost is a problem associated with attic bypasses. Melting frost can lead to deteriorated roof sheathing mold on the roof sheathing wet insulation and water stains on the ceilings.

The more humid a house is the more frost you ll find in the attic. Melting frost can lead to deteriorated roof sheathing mold on the roof sheathing wet insulation and water stains on the ceilings. Ventilation is not the way to fix frost in the attic. When the outside temperature rises again the frost thaws water collects and can leak into your house.

House pressure affects. To suggest adding more ventilation to a roof to fix frost in the attic is like telling someone with a leaking water pipe to install a dehumidifier. Frost itself doesn t do any damage but once it melts things get wet and then damage occurs. I ve blogged about attic air.

How to prevent frost in the attic frost comes from air leaks. More indoor humidity more frost in the attic. When warm air from inside the house escapes traveling up through the bypasses the moisture condenses on the roof boards and rafters where the frost can form. The fix for frost in the attic is sealing attic bypasses these are passageways from the conditioned household space to the attic.