Frost On Roof Means

Some people have wondered about that sharp dividing line between the frosty roof over the garage and the not so frosty roof over the living space.

Frost on roof means.

A well insulated attic floor will keep the heat in the home better making the roof thaw evenly. Something i implied above but didn t say explicitly is that when frost forms on the roof the roof is below freezing. The overhang porch and garage keep ice on them longer. In other words the sequence might be as follows.

What does a lack of frost on my roof mean. 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. Is a lack of frost a good sign or bad sign. Homes that let heat escape more rapidly than others will keep ice on the overhangs but not over the living area.

This leaves a border of frost on the outside edges of the living area. 1 initially the air and the car are at temperature 37 f and the dew point is 35. If all of your neighbor s roofs have a healthy sheen of frost on top of them but yours does not it may not be the best sign. As it cools below 35 degrees water condenses on it.

A note about the sharp dividing line. Warm shingles don t allow frost to form as readily as cold shingles. And here s the clincher. Roofcorp explores what frost on a roof or lack thereof means for your home and roofing system.

During winter conditions attic frost is a problem associated with attic bypasses.