A point often overlooked is that since it s winter the water freezes on the cold nails.
Is frost in the attic normal.
That s about it pretty simple.
To start frost shows up in the attic when moisture laden air from the house gets into the attic.
Where the water comes from.
The air in the attic has water in it and it condenses on the cold metal.
Left unchecked moisture in the attic can lead to serious mold and decay expensive to repair and potentially unhealthy for anyone in the house.
At times there was ice and frost on the nails.
The nails that you see in your attic get as cold as the outdoor temperature.
Frost in the attic comes from the house.
Last winter i noticed condensation and water droplets on the nails that stick through the roof into the attic.
This winter warmer dryer weather has seen the return of more normal attic conditions with significant frost seen only in problematic attics.
Since our minnesota winters are usually dry the only other source of humid air is your living space.
The unusual amounts of frost last year likely melted.
Frost in your attic space is a sign that warm humid air is somehow getting into your attic space.
Now on occasion you could actually have small amounts of snow windblown in from your roof through your roof vents that is not normal but it is a common problem and that would be a fix your roofer could do maybe add an extra shingle cap on your ridge vent or something.
No it is not normal to have frost in your attic it means you have warm moist air leaking in your attic from your house.
When the moisture gets into the attic it condenses on the roof.
How does humid air get from our house and into the 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.
My wife ali and i bought an old house 18 months ago.
This is why you see the frost.
What ends up as frost in the attic starts as water somewhere else in the house.
Lots of ways many of which are small is difficult to detect.
Boxes stored in the attic were sometimes wet.
When a warm sunny day arrives after a long cold stretch and it seems like you have a roof leak when there isn t a cloud in the sky it s probably attic icing otherwise known as ice dams or ice damming and the surprising thing is that it s very unlikely that the roof covering itself is the problem.
Why is there ice in my roof.