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Old 10-20-2011, 08:14 PM   #1
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finished basment questions


starting basement renovations, I had cheap wainscoting on basement walls, pull that all off along with the bottom 4ft of sheetrock due to it being glued to sheetrock. With the framing exposed, the basement foundation walls were framed with 1x2" furring strips and nothing running along bottom of wall. 1/2" foam in between strips. Some mold on furring strips, Best i can tell they aren't treated wood. Something doesn't seem right here. House was built in 1983.

I live in MN, am I better off pulling down the walls along foundation and reframing the walls with treated 2x4's and R-11 inbetween?



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Old 10-21-2011, 09:43 AM   #2
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I'm just Joe homeowner, I have a new construction house that I'm working on it's basement as well. I can tell you in new homes, they put down pressure treated bottom plate, with 2x4 walls and R13 insulation. R13 is required via code here in Fargo over R11. Also you will need about an inch of airspace between the wall and the concrete foundation. You can't have fiberglass touching the concrete. Styrofoam can be glued to the wall.

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Old 10-22-2011, 02:56 PM   #3
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Thanks for reply, are you using faced or unfaced insulation?
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Old 10-22-2011, 08:22 PM   #4
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framing an actual wall in front of the foundation wall does take more time however it makes the rough in for electrical and plumbing much easier

plus the key thing is that the wall will be much straighter if framed properly... truewall foam conforms to all the irregularities of the foundation wall

the 1" airspace doesnt just go for the insulation but it also applies to the studs
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Old 10-22-2011, 08:39 PM   #5
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I used faced insulation but I didn't have to. I put a 4mil vapor barrier over the whole works.
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Old 10-26-2011, 11:11 PM   #6
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No v.b. or faced insulation below grade, no air-space: http://www.buildingscience.com/docum...lation-systems

http://joneakes.com/jons-fixit-database/743

http://www.buildingscience.com/docum...gs?full_view=1

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Old 10-27-2011, 08:49 AM   #7
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Different areas of the country require different methods. The extreme cold in ND and Northern MN is something that has to be managed.

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