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Updated about 7 years ago on . Most recent reply
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Hvac sweating in a finished basements
Causing water damage to the drywall soffit.
Only in one room.
Do I need to remove the drywall, insulate the ductwork, and patch it back up again?
Most Popular Reply
Max Tanenbaum
If the ducts are located within a conditioned space, even if they are enclosed in a soffit, they should not be sweating. It sounds as though you are either, A) not conditioning that space (in which case the ducts will need to be insulated) or, B) there is excessive infiltration of unconditioned air getting into the soffit. In the latter case you would need to plug up or insulate the cause of the excessive infiltration.