Ice On Roof Nails In Attic

Last winter i noticed condensation and water droplets on the nails that stick through the roof into the attic.

Ice on roof nails in attic.

The nails there are icy too but the rest of the roof sheathing and trusses look fine. Our photograph above shows roofing nails which have rusted and stained the roof plywood in an attic where indoor moisture has risen through the building to condense on the under side of the roof. Frost on nails in attic spaces may frighten you. Ice frost and water in an attic condensation new construction text.

There s no snow on the roof but it s extremely cold here. The nails in my attic have frost and ice on them. I have no bathroom vents or anything bad like that sourcing moisture into the attic. Our photo at left shows the typical staining pattern in an attic where there has been modest condensation at the roofing nails.

Several online posts mostly from american sources say that any frost is not normal and signals impending doom. It should to a degree. Boxes stored in the attic were sometimes wet. At times there was ice and frost on the nails.

Frost on nails is frozen condensation. It s important to realize frost is in your attic for a few reasons. Remember the last hot and humid day you were sitting outside drinking a cold beer iced tea soda or glass of ice water. Just bought this house a few months ago.