Frost In The Attic Information

Check out my post on moldy attics for some.

Frost in the attic information.

You re seeing frost where cold air is entering your attic space and cooling nearby surfaces to below the dew point. 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. Frost gets into the attic from air leaks or attic bypasses.

The outside of the can or glass had drops of. Full home humidity systems. When moisture gets into the attic it condenses on the roof sheathing in the form of frost. When the moisture gets into the attic it condenses on the roof.

Remember the last hot and humid day you were sitting outside drinking a cold beer iced tea soda or glass of ice water. Air thus heat and water vapor leaking through the ceiling assembly will make this worse as will inadequate ventilation. The fix for frost in the attic is sealing attic bypasses these are passageways from the conditioned household space to the attic. Frost begins to compile when moist air travels to a home s attic.

That s about it pretty simple. It s important to realize frost is in your attic for a few reasons. 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.

Bypasses are what allow moisture in the attic to begin with and this is what needs repair. I ve blogged about attic air leaks many times and i ve shared photos of attic air leaks. Once this occurs it compresses to form frost. Ventilation is not the way to fix frost in the attic.

Frost itself doesn t do any damage but once it melts things get wet and then damage occurs. How does the air get there. Inadequate attic air sealing. It should to a degree.

Frost on nails in attic spaces may frighten you.