Check out my post on moldy attics for some.
Frost in the attic information.
When the moisture gets into the attic it condenses on the roof sheathing in the form of frost.
When moisture gets into the attic it condenses on the roof sheathing in the form of frost.
To start frost accumulates when moisture laden air from the house gets into the attic.
Full home humidity systems.
Bypasses are what allow moisture in the attic to begin with and this is what needs repair.
The fix for frost in the attic is sealing attic bypasses these are passageways from the conditioned household space to the attic.
Cold weather climate winter lows of 25c.
Lack of attic air sealing also allows frost to form as warm air penetrating into the attic causes moisture to condense on chilly surfaces.
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.
Inadequate attic air sealing.
When the outside temperature rises again the frost thaws water collects and can leak into.
Frost gets into the attic from air leaks or attic bypasses.
I noticed that i have frost in my attic in the winter and that one of my 2 roof vents is forming condensation which is dripping onto the insulation.
During winter conditions attic frost is a problem associated with attic bypasses.
Houses with full home humidity systems are at risk for attic frost if the home s level of humidity is excessive.
The frost itself doesn t do.
While bypasses are certainly the most common cause of frost there are other ways it can happen and these are much more.
That s about it pretty simple.
Frost shows up in the attic when moisture laden air from the house gets into the attic.
I ve blogged about attic air leaks many times and i ve shared photos of attic air leaks.