Frost Inside My Attic

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.

Frost inside my attic.

Frost in the attic comes from the house. How to prevent frost in the attic frost comes from air leaks. House pressure affects. The insulation added should have like the homeowner stated created the significant variance in heated living quarter temperatures to the unheated attic temperatures.

How does humid air get from our house and into the attic. 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. Since our minnesota winters are usually dry the only other source of humid air is your living space. I ve blogged about attic air.

Left unchecked frost in an attic can lead to serious mold and decay. 1 a leak 2 air infiltration from the living spaces and 3 incorrect venting of kitchen bathroom washer drier or plumbing vents. Frost in your attic space is a sign that warm humid air is somehow getting into your attic space. 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.

More indoor humidity more frost in the attic. Lots of ways many of which are small is difficult to detect. Frost gets into the attic from air leaks or attic bypasses. When the outside temperature rises again the frost thaws water collects and can leak into your house.

The internal humidity conditions contribute to the internal moisture frost conditions. Lower the humidity in the house increase air flow through attic. When the weather warms up the frost will become water droplets and evaporate harmlessly. The more humid a house is the more frost you ll find in the attic.

At the present time here s how to stop the frost you re seeing in your 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.