How to dry out an attic.
Frost in attic repair.
Some condensation or frost in the attic is common but never in large amounts.
Water in your attic can damage wood.
Frost accumulates in attics when moisture laden air from the house gets up there when it s cold.
That s about it pretty simple.
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.
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.
What is attic rain.
Left unchecked moisture in the attic can lead to serious mold and decay expensive to repair and potentially unhealthy for anyone in the house.
In small amounts this frost just vaporizes before it can cause damage.
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.
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.
Attic rain can occur when there is a build up of moisture usually frost in the attic.
Since our minnesota winters are usually dry the only other source of humid air is your living space.
But anything more than an occasional patch is the symptom of a larger moisture problem.
Though attics are typically hot and dry a leaky roof or pipe condensation or severe weather can cause water to enter your attic.
When moisture gets into the attic it condenses on the roof sheathing in the form of frost.
Why is there ice in my roof.
Usually takes extended periods of cold weather once the air warms or the sun shines on bare shingles the frost melts quickly raining down into the insulation and sometimes leaving staining and dripping from lights.
In large amounts the frost will melt and start to drip in the attic.
Frost in your attic space is a sign that warm humid air is somehow getting into your attic space.
When the weather warms up the frost will become water droplets and evaporate harmlessly.
Attic rain is when you have an accumulation of frost from air entering the attic from the house.