Air-Sealing Foundation Walls
Hey guys, I’m using continuous drywall to air seal partition/exterior connections and have a step down foundation here that is a little unconventional. I’m thinking easiest would be to extend the foundation a bit, apply moisture barrier, and then run the continuous drywall above it with a 3/4″ gap between the concrete and the continuous drywall. Alternatively I could run 1/2″ treated plywood behind and attach the drywall to that. Any thoughts on the best practice to get an air tight seal while also mitigating potential wicking water damage?
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