Frost In Attic Space

Frost in your attic space is a sign that warm humid air is somehow getting into your attic space.

Frost in attic space.

Frost gets into the attic from air leaks or attic bypasses. 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. Attics with pull down attic stairs should have attic stair insulation covers installed. 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.

I ve blogged about attic air leaks many times and i ve shared photos of attic air leaks. The final step is attic ventilation. That s about it pretty simple. Check out my post on moldy attics for some.

That s about it pretty simple. During winter conditions attic frost is a problem associated with attic bypasses. In order to eliminate frost build up in the attic space we have to understand what causes it in the first place. Common causes of attic frost.

Why is there ice in my roof. When the moisture gets into the attic it condenses on the roof. When moisture gets into the attic it condenses on the roof sheathing in the form of frost. How to dry out an attic.

Water in your attic can damage wood. Since our minnesota winters are usually dry the only other source of humid air is your living space. Should i do anything about my attic ventilation. 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 accumulates in attics when moisture laden air from the house gets up there when it s cold. When the outside temperature rises again the frost thaws water collects and can leak into.