Do I need a product like Hydrogap between the basement wall and the foam board insulation?
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Mystic CT NZE house. I am applying a foil faced polyiso board (2.5″) on concrete basement walls. Do I need a product like Obdyke Hydrogap between the basement wall and the foam board insulation?
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Replies
Courtney,
Q. "Do I need a product like Obdyke Hydrogap between the basement wall and the foam board insulation?"
A. No. For more information, see How to Insulate a Basement Wall.