I’m building a sauna in my basement. Any advice would be welcome but I’ve got a couple of specific questions:
1.) I’m going to have foam insulation sprayed on the walls. Will the high heat cause out-gassing or other problems?
2.) I want to use cedar with knots in it for walls that won’t be in contact with anyone, under the benches and behind the heater. Why shouldn’t I?
Thanks,
john