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Old 09-15-2012, 06:34 PM   #1
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foam foundation insulation

is ISO foam as good as the blue foam for insulating the outside of a concrete poured wall assuming good drainage below and a 6 mill plastic between the foam and the backfill?

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Old 09-17-2012, 07:26 AM   #2
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foam foundation insulation

Most applications for foam with dirt/moisture contact are best suited for XPS as opposed to ISO.

XPS is moisture insensitive whereas ISO is not.

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