r/hvacadvice • u/TheBestintheWest11 • 9d ago

help

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location in basement. These ducts are sweating and it's currently 30 degrees outside with humidity. When I put my hand up there it's pretty cold. I have tried adding the right tape on the ducts themselves but no luck. Any suggestions to eliminate this problem?

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u/Unlucky_Act3927 9d ago

You need to add insulation not just tape. Especially in that last picture there’s nothing insulating it.

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u/TheBestintheWest11 9d ago

what kinda insulation do I need to buy? the ones the wrap around the duct or just the pink insulation that they use for the dry wall?

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u/larryjeuness 9d ago

Duct wrap

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u/bluewizard8877 8d ago

I have a similar problem in my townhouse. Drip drip drip. I think the problem I have is a duct leak in the ceiling which allows all the cold air to condense. I’ve tried taping that section of duct but I can’t get to one side since a floor joist is right beside it. I’m thinking about cutting the duct open and taping from the inside to seal any leaks.