Frost In The Attic Information

Frost begins to compile when moist air travels to a home s attic.

Frost in the attic information.

Frost on nails is frozen condensation. The straight forward answer is that a little frost seen in a canadian attic in the dead of winter is nothing to panic about. Frost gets into the attic from air leaks or attic bypasses. When moisture gets into the attic it condenses on the roof sheathing in the form of frost.

Houses with full home humidity systems are at risk for attic frost if the home s level of humidity is excessive. Ventilation is not the way to fix frost in the attic. How does the air get there. Remember the last hot and humid day you were sitting outside drinking a cold beer iced tea soda or glass of ice water.

That s about it pretty simple. It s important to realize frost is in your attic for a few reasons. Frost itself doesn t do any damage but once it melts things get wet and then damage occurs. When the moisture gets into the attic it condenses on the roof.

Frost on nails in attic spaces may frighten you. Lack of attic air sealing also allows frost to form as warm air penetrating into the attic causes moisture to condense on chilly surfaces. The outside of the can or glass had drops of. 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. Inadequate attic air sealing. It should to a degree. Air thus heat and water vapor leaking through the ceiling assembly will make this worse as will inadequate ventilation.

You re seeing frost where cold air is entering your attic space and cooling nearby surfaces to below the dew point. Sticking my head into hundreds of attics every year i see lots where. 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.

Check out my post on moldy attics for some.