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Community and Q&A

Where to Put a Basement Vapor Retarder

kapguy | Posted in General Questions on

Hi!  Looking for thoughts on this:

Have an interior sump pump perimeter drain inside basement with 6 inches of dimple board sticking out of floor along wall to channel any wall water into sump system.

It was suggested to me to install a poly plastic directly on the brick/block wall (and not the interior side of the studs), tucked into dimple board to channel any condensation into sump /trench system.  But I have read that Poly=BAD.

Not sure it matters, but climate zone 4.

Is this good or bad?



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