Frost In The Attic Information

When moisture gets into the attic it condenses on the roof sheathing in the form of frost.

Frost in the attic information. Houses with full home humidity systems are at risk for attic frost if the home s level of humidity is excessive. Frost on nails is frozen condensation. Frost on nails in attic spaces may frighten you. Melting frost can lead to deteriorated roof sheathing mold on the roof sheathing wet insulation and water stains on the ceilings.

When the moisture gets into the attic it condenses on the roof. Full home humidity systems. It should to a degree. It s important to realize frost is in your attic for a few reasons.

I ve blogged about attic air leaks many times and i ve shared photos of attic air leaks. That s about it pretty simple. Ventilation is not the way to fix frost in the attic. Frost begins to compile when moist air travels to a home s attic.

The straight forward answer is that a little frost seen in a canadian attic in the dead of winter is nothing to panic about. Bypasses are what allow moisture in the attic to begin with and this is what needs repair. The fix for frost in the attic is sealing attic bypasses these are passageways from the conditioned household space to the attic. Frost itself doesn t do any damage but once it melts things get wet and then damage occurs.

Once this occurs it compresses to form frost. The outside of the can or glass had drops of. Frost accumulates in attics when moisture laden air from the house gets up there when it s cold. Air thus heat and water vapor leaking through the ceiling assembly will make this worse as will inadequate ventilation.

Remember the last hot and humid day you were sitting outside drinking a cold beer iced tea soda or glass of ice water. Frost gets into the attic from air leaks or attic bypasses. Inadequate attic air sealing. Check out my post on moldy attics for some.

You re seeing frost where cold air is entering your attic space and cooling nearby surfaces to below the dew point.