Not sure what to do with basement insulation plan
We had planned to use 1″ XPS over the slab of our walk out basement and then finishing. We will also be using 2″ XPS on the concrete walls. We had planned to seal all joints between the rigid foam, put 3/4″ TG plywood over the floor XPS and then frame and install laminate. However, we have run into some headroom issues and the fact that one wall is load bearing and we have the issue of the stairs when run in the middle of the basement (not sure if these should rest on rigid foam). So, now we are thinking of just doing XPS on the walls. However, I do still want a vapor barrier on the floor to prevent moisture issues. And I am worried about the wood framing being placed on the concrete slab with no thermal break. Any suggestions? We are thinking about maybe doing cork underlayment under the laminate to give a tiny bit of insulating help. Thank you!
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