Lots of ways many of which are small is difficult to detect.
Frost in attic new home.
Warm air holds a lot of.
Usually takes extended periods of cold weather once the air warms or the sun shines on bare shingles the frost melts quickly raining down into the insulation and sometimes leaving staining and dripping from lights.
Turned out the water was coming from ice melting in the attic.
During winter conditions attic frost is a problem associated with attic bypasses.
When moisture gets into the attic it condenses on the roof sheathing in the form of frost.
Frost in the attic comes from the house.
To start frost accumulates when moisture laden air from the house gets into the attic.
Since our minnesota winters are usually dry the only other source of humid air is your living space.
To start frost shows up in the attic when moisture laden air from the house gets into the attic.
That s about it pretty simple.
Attic rain is when you have an accumulation of frost from air entering the attic from the house.
Frost itself doesn t do any damage but once it melts things get wet and then damage occurs.
When the warm moist air in your attic cools with dropping temperatures the cooler air can no longer hold as much moisture.
It s a problem known as attic rain warm moist air sneaks into the attic freezes during cold weather and then melts during warm.
How does humid air get from our house and into the attic.
When the outside temperature rises again the frost thaws water collects and can leak into your house.
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.
Elevated attic humidity is typically the culprit behind attic frost.
When the moisture gets into the attic it condenses on the roof.
That s about it pretty simple.
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.