Frost In My Attic

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.

Frost in my attic.

Frost on nails in attic spaces may frighten you. But anything more than an occasional patch is. Check out my post on moldy attics for some. To start frost accumulates when moisture laden air from the house gets into the attic.

When the weather warms up the frost will become water droplets and evaporate harmlessly. Found leaky ducts allowing warm air to escape into the attic causing the condensation. Apparently the hvac people who installed my system did a very poor job. When the outside temperature rises again the frost thaws water collects and can leak into.

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 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. Frost gets into the attic from air leaks or attic bypasses. Left unchecked frost in an attic can lead to serious mold and decay.

When moisture gets into the attic it condenses on the roof sheathing in the form of frost. As a follow up to my frost in attic condition. It should to a degree. I ve blogged about attic air leaks many times and i ve shared photos of attic air leaks.

It s important to realize frost is in your attic for a few reasons. Had an energy audit. Common causes of attic frost. Why is there ice in my roof.

Check out my post on moldy attics for some. Frost in your attic space is a sign that warm humid air is somehow getting into your attic space. Remember the last hot and humid day you were sitting outside drinking a cold beer iced tea soda or glass of ice water. 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.

I ve blogged about attic air leaks many times and i ve shared photos of attic air leaks. Since our minnesota winters are usually dry the only other source of humid air is your living space. Had the ducts repaired and auditor coming back to perform duct blast test. Frost on nails is frozen condensation.

That s about it pretty simple.