I’m looking to finish my basement. I have a 1940’s cape cod with a poured concrete basement. The basement walls have a fairly thick layer of plaster to them, very rough looking. It’s and in good shape. No water issues. I want to treat the plaster like it’s part of the concrete walls and do glue with EPS board. On top of that I’d build my frame/bays for my walls. Roxul batts with no vapor barrier and then dry wall.
Alternatively, I thought I could just frame out the basement on top of the plaster, use no insulation, and then do whatever finish I wanted (drywall, paneling, etc). I don’t get any added insulation but I also won’t break the plaster and I’d get the look I wanted.
Any help or input is appreciated!