20 Aug '13, 7pm

Moisture issue with improperly dense packed ceiling? #green

Does anyone have any idea what the chances are of a moisture issue(s) occurring in an unvented vaulted ceiling where the cellulose insulation is not in contact with the roof sheathing? The home is located in a cold climate (New York) and there is anywhere between 1 to 3" of air space between the cellulose insulation and the roof sheathing in the lower sections of the vaulted ceiling (as observed through an inspection hole that was drilled in the exterior soffit) while the cellulose in the higher parts of the ceiling appears to completely fill the rafter cavities. Just wondering how likely or unlikely it is for condensation to form in the areas with inadequate cellulose density. Any thoughts?

Full article: http://www.greenbuildingadvisor.com/community/forum/gba-p...

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