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Old 08-09-2008, 08:28 PM   #1
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water on HVAC ducts


I was under my crawl space today and saw/felt water in a few spots on my HVAC ducts ( I have a package unit outside house) Is this condensation and normal? Thanks

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Old 08-10-2008, 04:42 AM   #2
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water on HVAC ducts


Yes it is probably condensation. Ductwork should be insulated, on the inside, or outside to prevent this. Wrap the areas with fiberglass, and tape the ends. If left unattended it may cause a musty smell in the ductwork.

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Old 08-10-2008, 09:21 AM   #3
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water on HVAC ducts


it is insulated and taped but the water is still seeping through.
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Old 08-11-2008, 04:53 AM   #4
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water on HVAC ducts


Is the insulation tight on the duct or loose. Somewhere warm air is making contact with cold air. A small amount of moisture is not unusual during an extended period of warm weather, but once the insulation is saturated, it is not insulation any more, it becomes a conductor.
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