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Shadyacres
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# Posted: 28 Jan 2014 07:33pm
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Vapor barrier ? I know I will get differing answers on this but is it better to install Kraft faced insulation and no other vapor barrier ( say 6 mil poly) or is it better to install unfaced insulation and 6 mil poly ? Also , I was planning on placing drywall on my exterior walls and then 3/4 inch T & G pine. I checked with my code officer and he said I did not need the drywall if I used a vapor barrier between the insulation and the T & G. Does anyone have any opinions on this . I welcome all to join in. Mike
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MtnDon
Member
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# Posted: 28 Jan 2014 08:10pm
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Vapor barrier use / requirements are climate specific.
But everywhere can benefit from an air barrier. They are different and yet sometimes are the same.
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Shadyacres
Member
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# Posted: 28 Jan 2014 08:18pm
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I am in central PA , I always thought if you used kraft faced insulation , that was vapor barrier but I read so many different opinions so I'm not sure.
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OwenChristensen
Member
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# Posted: 28 Jan 2014 08:19pm
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Your building officer is right. I have always thought poly was much better than craft back in that it can be almost free of any leaks.
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MtnDon
Member
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# Posted: 28 Jan 2014 08:39pm
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Some of the best info on vapor and air barriers as well as insulation can be found on the website of buildingscience.com
Worth a look.
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