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Community and Q&A

Slab edge foam board gap

Norman Bunn| Posted inEnergy Efficiency and Durabilityon

I placed 2″ foam board at the edge of my basement wall before they poured. Now that is has dried some, there is a bit of play between the slab and the foam board. Since this gap (1/16″ or so) could provide a path for termites (who might come through the foam anyway. We shall see.), should I caulk or spray foam this in a few weeks once the slab is nearly cured?

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  1. GBA Editor
    Martin Holladay||#1

    Yes.

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