Vapor Barrier Under Foam Board Basement? - Flooring - DIY Chatroom Home Improvement Forum

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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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Fig. #2:

Photo 3:

If you have an interior drainage, fig. 15:



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