Ask Experts Questions for FREE Help !
Ask
    KAMAR5's Avatar
    KAMAR5 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Aug 19, 2009, 05:47 AM
    What insulation to use?
    I work in a warehouse setting, and we have exposed metal AC ductwork. The problem is the ductwork gets condensation dripping off it. Can anyone tell me what's the best insulation to fix this problem?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Aug 19, 2009, 07:21 AM
    Usually a product called duct wrap works well to control the moisture. It is best applied when the duct is dry and make sure to seal all joints with approved tape.

    Now there are spray on duct sealers that also insulate so do your reseatch on Google to find out more info.
    tunneyl's Avatar
    tunneyl Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Aug 21, 2009, 09:10 AM
    If the exposed duct that is sweating is supplying conditioned air to the warehouse, and is not internally lined with insulation, then a 2"-3/4# FSK fiberglass duct wrap will work just fine, as hvac1000 suggested. If it has internal liner, then the temperature differential between the warehouse space air temperature and the duct supplied air temperature is too great and adding external insulation may or may not help. It may take adding insulation to the building in order to keep heat from building up, or increasing the size of the conditioning unit if it is undersized (hvac1000 can verify this, I only know insulation).
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Insulation pkg [ 1 Answers ]

Where can I find insulation pkg for a coleman furnace?It goes on the three sides of the wall and on the front panel

Foam insulation [ 2 Answers ]

Hi,I have a 40x50x12 metal building and I am thinking about insulating the ceiling with spray foam insulation the following are questions that I would like opinions on. (1) how thick do I need to put it on. (2) how much it might cost at the thickness I will need to get decent (r) value (3)...

New insulation over old atic insulation [ 1 Answers ]

Presently there are three layers of aluminum with air spaces. Can I put bats directly over this insulation and what do I have to be concerned about.

Insulation [ 1 Answers ]

I live in the state of Massachusetts,so it very cold here.when I take the old window out and the weight of the window what type of insulation should I put in the gap inside. Thanks

Insulation [ 4 Answers ]

I was wondering what the pros and cons are to putting insulation on the ceiling of a basement. The reason for my asking is someone has told me that it isn't wise because cold air doesn't rise anyways(I already knew that) and you would cut any heat off coming from the boiler and water heater that...

View more questions Search