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Old 07-27-2014, 08:58 PM   #1
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Insulating HVAC ductwork in garage?


Getting ready to sell our house. There's an office above the garage.

The air handler and some ductwork for the office HVAC unit are inside the garage attached to the garage ceiling.

Pix attached.

The insulation looks awful - sloppy taped seams all over the place, tape is peeling in several places. The whole thing shouts "BE AFRAID, VERY AFRAID" to potential buyers even though the HVAC is actually working fine.

What's the best (DIY-friendly, quick, fairly cheap) way to improve the appearance of this dog's breakfast? Can we just replace this silver insulation ourselves and do a better job of attaching and taping it?

Or is there a better way?

Appreciate your help.
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Old 07-29-2014, 06:59 PM   #2
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No ideas at all?


No ideas from anyone? Uh oh...is it that big a mess?

Makes me nervous that no one's got any suggestions!
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Old 07-30-2014, 01:05 PM   #3
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I would prefer to see it (as a potential buyer) inside a bulk head and sealed off from any fumes.

If you don't go that route, pull down that old stuff and seal all the seams with mastic and re-cover with new insulation.
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Old 07-30-2014, 01:24 PM   #4
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Type of insulation to use?


Unfortunately, clearances are super-tight btwn ductwork, light fixtures and garage door openers. Really wish the original installation had been done differently, but that was long before us...

So bulkhead is probably not our preferred option.

Any recommendations on which type of insulation to go with since it's so visible?

(ex: self-adhesive foam and foil, fiberglass blanket, etc.)
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Old 09-02-2014, 03:50 PM   #5
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I would like to bump this thread as I am working through something similar.

How would one go about insulating ductwork in a garage? Thank you.
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Old 09-02-2014, 04:22 PM   #6
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Quote:
Originally Posted by pleokumo
I would like to bump this thread as I am working through something similar. How would one go about insulating ductwork in a garage? Thank you.
You can insulate it with anything that would be applicable but you absolutely would first want to make sure that all the ductwork was properly sealed so that there was no crossover between the fumes coming out of the garage in the ductwork itself.
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Old 09-03-2014, 02:31 PM   #7
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Quote:
Originally Posted by Windows on Wash View Post
You can insulate it with anything that would be applicable but you absolutely would first want to make sure that all the ductwork was properly sealed so that there was no crossover between the fumes coming out of the garage in the ductwork itself.
thanks for your response. how would i ensure that the ductwork is properly sealed before insulating?
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Old 09-03-2014, 03:37 PM   #8
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Tape, mastic, caulking/sealant, etc.
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Old 09-03-2014, 04:41 PM   #9
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Quote:
Originally Posted by Windows on Wash View Post
Tape, mastic, caulking/sealant, etc.
Gotcha. I thought you meant something otherwise, that makes sense.
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Old 09-03-2014, 10:03 PM   #10
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hire a contractor to do work so it's done professionally and guaranteed and transfer incurred cost to selling price of home.

there's going to be other issues due to leakage/saturation between airs such as rust. me thinks.
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