That warm air makes contact with the roof deck and warms it up.
Frost on house roof.
Help prevent roof damage by keeping gutters and downspouts flowing even in frigid below zero temperatures.
On my roof some areas will have frost and others not.
That heat then conducts up all the way to the shingles.
Prevent ice dams this winter.
1 initially the air and the car are at temperature 37 f and the dew point is 35.
Thanks wayne 10 31.
And conversely frosted areas indicate more adequate insulation.
Frost king carries electric roof cables kits in lengths from 30 to 200 each powered by 120v with 7 watts per foot.
Something i implied above but didn t say explicitly is that when frost forms on the roof the roof is below freezing.
If the morning sun directly hits your home and not your neighbors lack of frost may just be attributed to the sun s heat.
However if nothing is different about your home compared to your neighbors you may have a problem.
An ice dam is a hump of ice that forms at the edge of a roof under certain wintertime conditions.
It s that time of year when we occasionally have frost on our roof tops.
A lack of frost can indicate that heat is leaking out through your attic space onto the roof and melting the frost.
In other words the sequence might be as follows.
An ice dam can damage both your roof and the inside of your home.
Is the absence of frost an indication of heat loss thru the roof via poor insulation.
Once in the attic it warms the air over the living space.
And here s the clincher.
Ice dams are a common sight in northern new england winters and home partners has dealt with quite a few.
Warm shingles don t allow frost to form as readily as cold shingles.