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Caulking Slab/Foundation corner joint (Radon)

oldbungalow | Posted in Green Products and Materials on

Hi we have an insulated basement slab that was notched where it joins the foundation wall on the top. It is supposed to be caulked/sealed at the notch where foundation wall and top of slab meet, to air-seal/radon-seal. What would be the proper sealant to use for this joint, around the interior perimeter of the basement?

thanks in advance!

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  1. ERIC WHETZEL | | #1

    We used Prosoco Air Dam. So far, it's holding up well.

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