How do I stop ductwork in my attic from "sweating" in the summer?

The duct work in my attic "sweats" when I have the AC on in the summer. It ends up dripping down the walls or stains my ceiling.





What can I do to stop that from happening?
How do I stop ductwork in my attic from "sweating" in the summer?
Insulating the duct is the only way to stop the condensation. Neoprene type insulation is best. Use fiberglass ductwrap if that is too expensive. Completely seal all ends and seams. If any humidity can get under the insulation, it will condense on the duct and ruin the insulation. DO NOT go to Home Depot for advice. I wouldn't ask them how to heat water. Go to an insulation supply store, or an insulation contractor. Remember, you must completely seal the duct so no air can come into contact with it.
How do I stop ductwork in my attic from "sweating" in the summer?
You need to/should insulate the duct work. The cold inside the duct works travels to the heat side and makes it sweat.


Duct work should be insulated to prevent loosing the cooling into the attic as well as the heat into the attic.


It will cost you but it will save you a bunch more in AC and Heating bills.
Reply:Insulate, Gerald is right.
Reply:I agree with Gerald and floating. Also another way to help is an attic fan. You still need to insulate the ducts.
Reply:the attic needs to breath. it needs vented.Go to home depot , they have people that will give you the how to..Good luck.
Reply:Don't forget to seal any leaks.

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