Causes Of Frost In Attic

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

Causes of frost in attic.

Well temperature fluctuations like that are a prime culprit for frost in the attic. That s about it pretty simple. Then the air condensates on the wood of the interior of your roof which is the coldest part of the attic. When the outside temperature rises again the frost thaws water collects and can leak into your house.

In the parlance of building scientists these cold wooden house parts make up a condensing surface much like a cold glass of ice tea beads with water on a hot summer day. To start frost accumulates when moisture laden air from the house gets into the attic. What causes ice in attics. High humidity in homes first of all if the relative humidity of air in your home is too high work to lower it.

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. Attic ventilation is essential to prevent ice in roofs be certain that your roof ventilation is. The humid air in your home rises to the top of your home the attic when the temperature gets too low. When moisture gets into the attic it condenses on the roof sheathing in the form of frost.

When it reaches the cold surface of the roof sheathing and framing it turns to frost. To start frost shows up in the attic when moisture laden air from the house gets into the attic. Water vapor is migrating upward and eventually filtering into the attic.