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.
Frost in attic in winter.
Last winter i noticed condensation and water droplets on the nails that stick through the roof into the attic.
This winter warmer dryer weather has seen the return of more normal attic conditions with significant frost seen only in problematic attics.
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.
My wife ali and i bought an old house 18 months ago.
Frost accumulates in attics when moisture laden air from the house gets up there when it s cold.
That s about it pretty simple.
To start frost accumulates when moisture laden air from the house gets into the attic.
To start frost accumulates when moisture laden air from the house gets into the attic.
When the outside temperature rises again the frost thaws water collects and can leak into your house.
Why is there ice in my roof.
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.
That s about it pretty simple.
That s about it pretty simple.
At times there was ice and frost on the nails.
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.
Boxes stored in the attic were sometimes wet.
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.
The nails that you see in your attic get as cold as the outdoor temperature.
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 exact same process is happening in your attic during extreme cold weather.
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.
When moisture gets into the attic it condenses on the roof sheathing in the form of frost.
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.