Original message
| hvac help
 |  "return air duct"
, posted Fri 29 Aug 11:17:  
quote:
need help now please
...
i need someone to let me know if there is a code in washington dc that allows you to not have to put lining inside the return duct. I have a situation where the owner of the space is telling me that i have to line the inside of the return air to prevent sweating and i am telling him it is not necessary. The duct has already been put up and drywall has been put in place. I am trying to avoid having to pay people to redo all this work
krh
[this message was edited by hvac help on Fri 29 Aug 11:31] |
| Replies:
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| Cx-it
|  "Re(1):return air duct"
, posted Wed 24 Sep 11:36
Lining the inside the duct is for noise reduction not sweating.
A.B.
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| amech
| "Re(1):return air duct" , posted Fri 29 Aug 11:41
Wraping your R/A duct or installing a liner is not needed. R/A ductwork is returning space temp air back to the air handler and is not cold enough to make it sweat. The Supply ductwork on the otherhand should be wraped (if metal) or have insullated flex duct to prevent sweating. This will make your unit more efficient.
Hope this helps.
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