Frost In Attic In Winter

This winter s frigid weather in alberta could trigger more cases than last year of attic rain when warm moist air sneaks into the attic freezes then melts in warm spells like chinooks.

Frost in attic in winter.

Ice frost and water in an attic condensation new construction text. This post is largely a re blog of my last post on attic frost but that was from 2013 and it s time for a reminder about all of this. This post is largely a re blog of my last post on attic frost but that was from 2013 and it s time for a reminder about all of this. To start frost accumulates when moisture laden air from the house gets into the attic.

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. Why is there ice in my roof. When the outside temperature rises again the frost thaws water collects and can leak into your house. Frost accumulates in attics when moisture laden air from the house gets up there when it s cold.

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. To start frost accumulates when moisture laden air from the. The air in the attic has water in it and it condenses on the cold metal.

During winter conditions attic frost is a problem associated with attic bypasses. This winter warmer dryer weather has seen the return of more normal attic conditions with significant frost seen only in problematic attics. My wife ali and i bought an old house 18 months ago. When the moisture gets into the attic it condenses on the roof.

This exact same process is happening in your attic during extreme cold weather. The nails that you see in your attic get as cold as the outdoor temperature. At times there was ice and frost on the nails. When moisture gets into the attic it condenses on the roof sheathing in the form of frost.

Last winter i noticed condensation and water droplets on the nails that stick through the roof into the attic. This is why you see the frost. A point often overlooked is that since it s winter the water freezes on the cold nails.