Frost In Attic During Winter

A point often overlooked is that since it s winter the water freezes on the cold nails.

Frost in attic during winter.

This is why you see the frost. During winter there are usually three sources of humidity in an attic. The nails that you see in your attic get as cold as the outdoor temperature. Sealing your attic access hatch to prevent the movement of indoor air past the edges is the first step.

This exact same process is happening in your attic during extreme cold weather. During winter conditions attic frost is a problem associated with attic bypasses. That s about it pretty simple. This will freeze if attic temperatures remain below freezing causing frost to build up.

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. The air in the attic has water in it and it condenses on the cold metal. When the outside temperature rises again the frost thaws water collects and can leak into your house. 1 a leak 2 air infiltration from the living spaces and 3 incorrect venting of kitchen bathroom washer drier or plumbing vents.

Frost accumulates in attics when moisture laden air from the house gets up there when it s cold. When the moisture gets into the attic it condenses on the roof.