Does it make sense to put quality (=pricy) underlayment over 3/4“ subfloor+1/2” extra plywood layer?
I have standard subfloor + 1/2" plywood on top, to correct for joists going different directions, so that all hardwood boards can be laid one direction for a clean look and avoid sagging where they ...
Is fan-fold insulation an acceptable underlayment for hardwood? It is being used as a leveler from one floor level to another.
What is the best underlayment to use when installing tile that looks like hard wood? I have a wooden subfloor.