Frost In My Attic

Frost gets into the attic from air leaks or attic bypasses.

Frost in my attic.

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. That s about it pretty simple. Common causes of attic frost. A patch of frost here and there on the tips of roofing nails poking through the sheathing for instance probably isn t a cause for alarm.

In order to eliminate frost build up in the attic space we have to understand what causes it in the first place. Frost gets into the attic from air leaks or attic bypasses. Apparently the hvac people who installed my system did a very poor job. As a follow up to my frost in attic condition.

Check out my post on moldy attics for some. Check out my post on moldy attics for some. When moisture gets into the attic it condenses on the roof sheathing in the form of frost. When the weather warms up the frost will become water droplets and evaporate harmlessly.

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. During winter conditions attic frost is a problem associated with attic bypasses. Had an energy audit. Since our minnesota winters are usually dry the only other source of humid air is your living space.

Remember the last hot and humid day you were sitting outside drinking a cold beer iced tea soda or glass of ice water. Had the ducts repaired and auditor coming back to perform duct blast test. I ve blogged about attic air leaks many times and i ve shared photos of attic air leaks. I ve blogged about attic air leaks many times and i ve shared photos of attic air leaks.

Frost on nails in attic spaces may frighten you. When the outside temperature rises again the frost thaws water collects and can leak into. Left unchecked frost in an attic can lead to serious mold and decay. It s important to realize frost is in your attic for a few reasons.

Frost in your attic space is a sign that warm humid air is somehow getting into your attic space. 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. To start frost accumulates when moisture laden air from the house gets into the attic. Why is there ice in my roof.

But anything more than an occasional patch is.