Sealing perimeter of basement subfloor
I’m finishing my basement and following the typical GBA method for the floor: rigid foam installed over the concrete with OSB on top of the foam. The OSB is secured to the concrete with Tapcons. I’m leaving a 1/4″-1/2″ gap around the perimeter to allow for expansion.
My question is around what sealant/caulk to use to seal the gap? A specific brand or type would be much appreciated.
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