Even in newer homes some frost at various times of the year is nothing to worry about.
Frost in attic new home.
Frost and ice forms in attics when warm humid air accumulates and condenses on the underside of your roof sheathing.
Frost buildup in your attic can be attributed to three likely sources.
When moisture gets into the attic it condenses on the roof sheathing in the form of frost.
How does humid air get from our house and into the attic.
Last year virtually every attic that i looked into for the first couple of months of winter had significant.
Frost frost in attic frost covered attic frost in attics by reuben saltzman in energy frost in attics on december 17 2013.
Yes an hrv will lower your indoor humidity level.
Since our minnesota winters are usually dry the only other source of humid air is your living space.
Frost itself doesn t do any damage but once it melts things get wet and then damage occurs.
In extreme cases like this.
But you should also investigate those air leaks.
Attic rain occurs when warm moist air sneaks into the attic freezes during cold weather and then melts during warm spells like chinooks leaking water into the home.
Combustion of the kerosene heater or any fossil fuel such as gasoline oil propane and gas produces water vapor and this could turn to frost during cold days.
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.
Depending on the temperature and the insolation ie.
When the outside temperature rises again the frost thaws water collects and can leak into your house.
Blower door directed air sealing could be used to seal the air leaks in your ceiling.
During winter conditions attic frost is a problem associated with attic bypasses.
Since your indoor air is almost certainly the source of the moisture in your attic it will also help solve your attic problem.
To start frost accumulates when moisture laden air from the house gets into the attic.
Can sun get to the roof you will have either frost or water collecting.