Frost In Attic During Winter

When attics are not well ventilated moisture collects in this area of the home.

Frost in attic during winter.

The conditions that cause ice dams often cause attic condensation too. The more humid a house is the more frost you ll find in the attic. More indoor humidity more frost in the attic. With it comes moisture.

You may pay an ice dam removal company to melt the ice dam off your roof only for the leaking to continue. The air in the attic has water in it and it condenses on the cold metal. This can result in mold rust and deterioration of wood and structural fasteners. As the moisture migrates upwards to the colder attic areas during the winter months the relative humidity is increased to the point that condensation can occur on cold surfaces.

I ve blogged about attic air. A tool like this shoots nails through shingles. The tips of the nails are supposed to penetrate through the wood on your roof. This is why you see the frost.

This moisture can seep into the structure of your home affecting roofing materials as well as framing and contents of your attic. If you have a roof leak in the winter months and it s not being caused by ice dam there may be another culprit. 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. It looks like the roof is leaking but it s really the melting of a winter s worth of frost in the attic.

When the outside temperature rises again the frost thaws water collects and can leak into your house. The resulting thick layer of frost remained for several weeks until the weather warmed or a reasonable layer of snow covered the roofs to provide some insulation from the very cold exterior. House pressure affects. In the winter attic condensation often turns into frost which actually doesn t pose any threat.

Frost gets into the attic from air leaks or attic bypasses. Attic condensation generally happens during winter spring months when warm moist air from the main living area rises into the attic space. During winter conditions attic frost is a problem associated with attic bypasses. A point often overlooked is that since it s winter the water freezes on the cold nails.

How to prevent frost in the attic frost comes from air leaks.