Frost In Attic Space

Frost in your attic space is a sign that warm humid air is somehow getting into your attic space.

Frost in attic space.

Lots of ways many of which are small is difficult to detect. Frost itself doesn t do any damage but once it melts things get wet and then damage occurs. How does humid air get from our house and into 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.

During winter conditions attic frost is a problem associated with attic bypasses. When the outside temperature rises again the frost thaws water collects and can leak into your house. Can sun get to the roof you will have either frost or water collecting. Since our minnesota winters are usually dry the only other source of humid air is your living space.

The fix for frost in the attic is sealing attic bypasses these are passageways from the conditioned household space to the attic. When moisture gets into the attic it condenses on the roof sheathing in the form of frost. Melting frost can lead to the deteriorated roof sheathing mold on the roof sheathing wet insulation and water stains on the ceilings. Frost and ice forms in attics when warm humid air accumulates and condenses on the underside of your roof sheathing.

The frost itself doesn t do any damage but once it melts things get wet which is when the damage. When the moisture gets into the attic it condenses on the roof sheathing in the form of frost.