Frost Inside My Attic

Frost in the attic comes from the house.

Frost inside my attic. The warm air you are paying for to heat your home is leaking into the attic because your house is not sealed from the attic. The internal humidity conditions contribute to the internal moisture frost conditions. 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.

A patch of frost here and there on the tips of roofing nails poking through the sheathing for instance probably isn t a cause for alarm. Lower the humidity in the house increase air flow through attic. Left unchecked frost in an attic can lead to serious mold and decay. Frost gets into the attic from air leaks or attic bypasses.

Warm air holds a lot of. House pressure affects. Lots of ways many of which are small is difficult to detect. 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 there are usually three sources of humidity in an attic. When the weather warms up the frost will become water droplets and evaporate harmlessly. 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. Since our minnesota winters are usually dry the only other source of humid air is your living space. As a practising roofer and consultant i will note that any appearance of frost inside the attic especially if it is vented is a troubling sign. How does humid air get from our house and into the attic.

At the present time here s how to stop the frost you re seeing in your attic. The insulation added should have like the homeowner stated created the significant variance in heated living quarter temperatures to the unheated attic temperatures.