Frost In Attic In Winter

Why is there ice in my roof.

Frost in attic in winter. Frost accumulates in attics when moisture laden air from the house gets up there when it s cold. This winter warmer dryer weather has seen the return of more normal attic conditions with significant frost seen only in problematic attics. That s about it pretty simple. Last winter i noticed condensation and water droplets on the nails that stick through the roof into the attic.

The resulting thick layer of frost remained for several weeks until the weather warmed or a reasonable layer of snow covered the roofs to provide some insulation from the very cold exterior temperatures. 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. When the outside temperature rises again the frost thaws water collects and can leak into your house. 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 is why you see the frost. When moisture gets into the attic it condenses on the roof sheathing in the form of frost. During winter conditions attic frost is a problem associated with attic bypasses. Ice frost and water in an attic condensation new construction text.

A point often overlooked is that since it s winter the water freezes on the cold nails. When the moisture gets into the attic it condenses on the roof. 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. That s about it pretty simple.

The air in the attic has water in it and it condenses on the cold metal. This exact same process is happening in your attic during extreme cold weather. To start frost accumulates when moisture laden air from the. At times there was ice and frost on the nails.

To start frost accumulates when moisture laden air from the house gets into the attic. 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. Boxes stored in the attic were sometimes wet.