we have foam board in the walls and ceilings (pink XPS) sprayed in place using spray foam.
Now we want to cover the wall but we don’t like drywall. I am aware of the fact that 1/2in drywall is sufficient
but instead we are looking for several alternative options:
#1: 1 in pine board (common board or better), not TG, screwed on rafters/studs
#2: corrugated roofing panel (galvanized, the barn look)
#3: cement board either 1/4 or 1/2in
Which of these would work without drywall underneath and satisfy code requirements?
Thanks a million for your advice