Frost On Roof In Attic

Frost accumulates in attics when moisture laden air from the house gets up there when it s cold.

Frost on roof in attic.

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. My wife ali and i bought an old house 18 months ago. When a warm sunny day arrives after a long cold stretch and it seems like you have a roof leak when there isn t a cloud in the sky it s probably attic icing otherwise known as ice dams or ice damming and the surprising thing is that it s very unlikely that the roof covering itself is the problem.

Because their ceiling isn t air sealed or insulated well enough to keep a lot of heat from escaping into the attic. When warm air from inside the house escapes traveling up through the bypasses the moisture condenses on the roof boards and rafters where the frost can form. The dry air evaporates the frost. Because they were running the heat to keep the house warm.

I was up in the unfinished attic of my old house and noticed frost on the underside of the roof sheathing and also on some of the rafters. Without delay this air movement brings in drier outdoor air into the attic. Frost itself doesn t do any damage but once it melts things get wet and then damage occurs. Once in the attic it warms the air over the.

Attic insulation is in the floor of the attic rather than the roof. Over the living space the roof has little smatterings of frost but is largely devoid of the frozen stuff. At times there was ice and frost on the nails. Melting frost can lead to deteriorated roof sheathing mold on the roof sheathing wet insulation and water stains on the ceilings.

Ice frost and water in an attic condensation new construction text. It s easier to increase the air moving through your attic using roof turbine vents and other traditional roof vents. It must be remembered you must have great soffit ventilation so the air travels through your attic as a constant breeze. When moisture gets into the attic it condenses on the roof sheathing in the form of frost.

Last winter i noticed condensation and water droplets on the nails that stick through the roof into the attic. Why is there ice in my roof. Frost itself doesn t do any damage but once it melts things get wet and then damage occurs. The rafters are exposed.

When the outside temperature rises again the frost thaws water collects and can leak into.