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R- 7.8 , 2-in x 4-ft x 8-ft Faced Polystyrene Board Insulation

Perma "R" Products R- 7.8 , 2-in x 4-ft x 8-ft Faced Polystyrene Board Insulation

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Can this insulation be used on the inside of exterior concrete foundation walls


the psi according to the vendor is 10 psi no matter what the thickness. i don't believe it can be used for this application

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