Roof vents loft ventilation techniques why vent an attic duration.
Frost on roof in attic.
Once in the attic it warms the air over the.
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.
These could indicate that your home is losing.
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.
That s about it pretty simple.
The nails there are icy too but the rest of the roof sheathing and trusses look fine.
Frost itself doesn t do any damage but once it melts things get wet and then damage occurs.
The rafters are exposed.
Look at the entirety of your roof is the frost melting unevenly and not due to the sun s heat.
Frost accumulates in attics when moisture laden air from the house gets up there when it s cold.
A lack of frost can indicate that heat is leaking out through your attic space onto the roof and melting the frost.
Valley january 29 2007 10 18am 13.
Causes of attic mold frost on nails moisture robert wewer duration.
If the whole inside of the roof is covered with frost i would definetly suspect moisture is getting into the attic space from living quarters and would recomend further evaluation of this situation.
Melting frost can lead to deteriorated roof sheathing mold on the roof sheathing wet insulation and water stains on the ceilings.
Over the living space the roof has little smatterings of frost but is largely devoid of the frozen stuff.
Does your garage have a frosted roof and the rest of your home does not or vice versa.
Why is there ice in my roof.
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.
Attic insulation is in the floor of the attic rather than the roof.