Frost In Attic During Winter

When the outside temperature rises again the frost thaws water collects and can leak into your house.

Frost in attic during winter.

Frost accumulates in attics when moisture laden air from the house gets up there when it s cold. That s about it pretty simple. During winter conditions attic frost is a problem associated with attic bypasses. 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.

If you have a roof leak in the winter months and it s not being caused by ice dam there may be another culprit. This will freeze if attic temperatures remain below freezing causing frost to build up. Sealing your attic access hatch to prevent the movement of indoor air past the edges is the first step. 1 a leak 2 air infiltration from the living spaces and 3 incorrect venting of kitchen bathroom washer drier or plumbing vents.

A point often overlooked is that since it s winter the water freezes on the cold nails. During winter there are usually three sources of humidity in an attic. When the moisture gets into the attic it condenses on the roof. Attic condensation the conditions that cause ice dams often cause attic condensation too.

This exact same process is happening in your attic during extreme cold weather. You may pay an ice dam removal company to melt the ice dam off your roof only for the leaking to continue.