Frost In The Attic Information

Remember the last hot and humid day you were sitting outside drinking a cold beer iced tea soda or glass of ice water.

Frost in the attic information.

Bypasses are what allow moisture in the attic to begin with and this is what needs repair. When the moisture gets into the attic it condenses on the roof. Frost on nails is frozen condensation. When moisture gets into the attic it condenses on the roof sheathing in the form of frost.

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. The straight forward answer is that a little frost seen in a canadian attic in the dead of winter is nothing to panic about. Once this occurs it compresses to form frost.

The fix for frost in the attic is sealing attic bypasses these are passageways from the conditioned household space to the attic. Frost accumulates in attics when moisture laden air from the house gets up there when it s cold. It s important to realize frost is in your attic for a few reasons. Melting frost can lead to deteriorated roof sheathing mold on the roof sheathing wet insulation and water stains on the ceilings.

Sticking my head into hundreds of attics every year i see lots where. Inadequate attic air sealing. Air thus heat and water vapor leaking through the ceiling assembly will make this worse as will inadequate ventilation. How does the air get there.

Frost itself doesn t do any damage but once it melts things get wet and then damage occurs. Houses with full home humidity systems are at risk for attic frost if the home s level of humidity is excessive. Full home humidity systems. Check out my post on moldy attics for some.

Frost begins to compile when moist air travels to a home s attic. Ventilation is not the way to fix frost in the attic. Frost gets into the attic from air leaks or attic bypasses. The outside of the can or glass had drops of.

Lack of attic air sealing also allows frost to form as warm air penetrating into the attic causes moisture to condense on chilly surfaces.