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Old 01-13-2012, 05:05 PM   #1
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vapor barrier under foam board basement?


going to be installing laminate in my basement for flooring.


plan on putting 1" foam board on the floor, then 5/8 plywood ontop of that. then tapcon screws into the cement.( also doing 1.5" foam on the walls )

should i bother installing a 6mill vapor barrier plastic under the foam board? or does the foam count enough for it?

also, should i follow the 6mill vapor barrier up the walls as well?
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Old 01-14-2012, 02:17 PM   #2
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vapor barrier under foam board basement?


Fig. #2: http://www.buildingscience.com/docum...ms?full_view=1

Photo 3: http://www.buildingscience.com/docum...g-your-basment

If you have an interior drainage, fig. 15: http://www.buildingscience.com/docum...lation-systems

Gary
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