Moisture in a vaulted ceiling
I have insulated my valuted ceiling by spraying 1.5" of 2lb. Sprayfoam on the inside of the roof and then filled between the rafters with R-20 fiberglass bats and covered it with 6 mil poly then drywall. This was done per an inspectors request. BUT I have a huge moisture issue!!
On the shaded side of the roof water beads up on the top and bottom of the fiberglass and on the foam. From what I have seen on TV I don't think I should use a poly vapor barrier on the inside because the roof is sealed with sprayfoam.
I hope the cure is to remove the plastic!!
Your input would be greatly appreciated.