durofoam

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keghorn
Posts: 2
Joined: Sat Jan 26, 2019 6:30 am

durofoam

Post by keghorn » Sat Jan 26, 2019 6:45 am

Going to use durofoam on the concrete walls in the basement just wondering if i should use 1inch or 1.5 planning on framming ,batt insulation ,vapor barrier, drywall as you sugggest. House is up in Collingwood area.


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Shannon
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Joined: Fri Nov 25, 2011 11:58 pm
Location: Canada
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Re: durofoam

Post by Shannon » Sat Jan 26, 2019 9:17 am

well that would depend on what R value your area calls for in basement walls. Most areas of Canada now require R20 So if you use R14 Roxul and the 1-1/2" (R5.63) does not really make it but may be allowed.
Now if you used 1-1/2" XPS rigid foam (R8) and even regular 3-1/2" batt insulation(R12) you would be right on the mark.
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