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Old 08-25-2011, 02:45 PM   #1
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Dow Super TUFF-R or Owens Corning InsulPink??


Hi,

I am insulating the inside of my exterior walls. There is only just over 1 3/8 space between the masonry brick wall and the top of the furring strips.

Is the Super Tuff-R or InsulPink a better option? Do I need to add a vapor barrier and if so where do I add it? The super tuff-r says it has moisture resistant facers laminated to the foam core.

I need to be able to insulate behind the furring strips as well as between them. The insulpink product is pre cut to fit behind the strips but would have to be a little flexible so I could bend it behind the existing furring strips.

It looks like the Super Tuff-R is the better product BUT it costs $27/sheet and the Insulpink is only $12/sheet.

Anyone with experience installing and/or usage of these products would be greatly appreciated.

Thanks!
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Old 09-01-2011, 10:22 AM   #2
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Dow Super TUFF-R or Owens Corning InsulPink??


I think that Tuff-R has a foil facing on it right? If that's the case, that's why it has a higher R value and thus the higher price. I believe that that also effectively makes it a vapor barrier.

The OC pink insulation board is just a closed cell foam sheathing. It's not a vapor barrier, but a vapor retarder that allows moisture to pass through slowly.

You have any moisture problems?
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Old 09-01-2011, 11:12 AM   #3
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Dow Super TUFF-R or Owens Corning InsulPink??


No moisture problems currently but who knows what the future brings
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Old 09-01-2011, 01:08 PM   #4
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Dow Super TUFF-R or Owens Corning InsulPink??


Quote:
Originally Posted by psubaron View Post
I need to be able to insulate behind the furring strips as well as between them. The insulpink product is pre cut to fit behind the strips but would have to be a little flexible so I could bend it behind the existing furring strips.
Insulpink is a rigid foam and does not bend or compress much.
I think Owens Corning makes XPS in 0.5", 0.75", 1", 1.5" (insulpink), and 2" thinkness. I have seen a fanfold version that's 3/8". Maybe you can cut foam strips and put them behind the furring strips, but that's very labor-intensive.
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Old 09-09-2012, 10:41 PM   #5
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Dow Super TUFF-R or Owens Corning InsulPink??


Hi...reporting back about my installation of Dow's Tuff-R rigid foam insulation. I used various thicknesses of the rigid foam to insulate on the inside of my exterior walls. My walls are made of masonry so I didn't have voids to use fiberglass or roxul. It's been a year now and the rigid foam and vapor barrier installed behind drywall have made a HUGE difference from before! Also it has provided some sound proofing from the outside compared to before. I highly recommend using it when you have limited space for insulation!
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Old 09-09-2012, 11:25 PM   #6
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Dow Super TUFF-R or Owens Corning InsulPink??


Glad to hear that, thanks!

FYI- the Tuff-R has a higher R-value, not from any facing but because it is a different type board (PIC) polyiso, not XPS.
http://msdssearch.dow.com/PublishedL...romPage=GetDoc

Gary
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Old 09-09-2012, 11:28 PM   #7
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Dow Super TUFF-R or Owens Corning InsulPink??


The pink board from Corning was cheap looking, no vapor wrap and lower r value but wasn't much cheaper so I went with Tuff R and glad I did.
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Old 09-09-2012, 11:40 PM   #8
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Dow Super TUFF-R or Owens Corning InsulPink??


I would have left you this, had I known; http://www.buildingscience.com/docum...nt+steel+studs

Gary
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Clean the dryer screen in HOT water if using fabric softener sheets.
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Clean the ducting in the last six months? 17,000 dryer fires annually!
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