Condensation in dormer ceiling
#1
03-30-23, 09:50 AM
Condensation in dormer ceiling
Just noticed a bubble in ceiling drywall. It's at the bottom of the angled dormer joist bay. In the attic the unfaced side of the batt insulation bends up about 10 inches and snug to roof sheathing. Installers probably didn't want to cut it to size.
Could that warmth against cold sheathing cause condensation?
Could that warmth against cold sheathing cause condensation?
#2
03-30-23, 11:16 AM
Group Moderator
All attics/roofs that are under insulated, under ventilated, without air sealing or vapor barriers, that are in close proximity to both the heated interior and the cold exterior will get condensation or frost under the right conditions if you live in a cold climate. Cathedral ceilings are the most problematic in this regard because they typically meet most of the previously mentioned things.
jeweler
voted this post useful.
#3
03-31-23, 06:02 AM
Member
Just noticed a bubble in ceiling drywall.
