Can i cure it.
Frost in attic rafters.
What you re looking at is evidence of excessive moisture in your house.
The rafters are exposed.
A few years ago we had a lot of frost and a company came in and charged us 250 to spray the exhaust fan and duct to stop leakage.
What s happening is that the rafters keep the warm air from migrating much.
Our dryer vents up through the attic to the roof.
When the moisture gets into the attic it condenses on the roof.
Will it cause any harm.
That s about it pretty simple.
How much frost should you have in an attic.
What causes this type of moisture problem in the attic.
Some of it can cross the first rafter there but it doesn t seem to make it across the second rafter.
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.
We still have one area in the rafters between the bathroom and a walk in closet that has some frost.
What causes this frost.
How much dripping up there before we have.
The worst frost was on the other side though.
Attic insulation is in the floor of the attic rather than the roof.
During winter conditions attic frost is a problem associated with attic bypasses.
Frost accumulates in attics when moisture laden air from the house gets up there when it s cold.
Near the ridge the frost free area extends over the garage a bit because warm air rises and it ends up near the ridge.
As seniors with medical conditions we are worried about mould.