Roof vents loft ventilation techniques why vent an attic duration.
Frost on roof in attic.
When moisture gets into the attic it condenses on the roof sheathing in the form of frost.
Frost itself doesn t do any damage but once it melts things get wet and then damage occurs.
Frost accumulates in attics when moisture laden air from the house gets up there when it s cold.
That s about it pretty simple.
The nails there are icy too but the rest of the roof sheathing and trusses look fine.
Over the living space the roof has little smatterings of frost but is largely devoid of the frozen stuff.
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.
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.
The rafters are exposed.
Valley january 29 2007 10 18am 13.
A lack of frost can indicate that heat is leaking out through your attic space onto the roof and melting the frost.
Because they were running the heat to keep the house warm.
Why is there ice in my roof.
Melting frost can lead to deteriorated roof sheathing mold on the roof sheathing wet insulation and water stains on the ceilings.
Look at the entirety of your roof is the frost melting unevenly and not due to the sun s heat.
Because their ceiling isn t air sealed or insulated well enough to keep a lot of heat from escaping into the attic.
Does your garage have a frosted roof and the rest of your home does not or vice versa.
These could indicate that your home is losing.
I went up in the attic to see if the eaves were blocked and they are open but i see two or three spots of frost on the sheathing about the size of my hand right near the baffles located closest to the brick chimney.
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.