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 ...
I removed a waterproof camping bag in my student appartment today that's been filled with stuff to find that it has left a moldy spot on the untreated plywood it stood on. It's been parked up right ...
I built a 12'x20' shed foundation on the Oregon coast last Summer. It is 3/4" pressure-treated Doug Fir plywood over P-T framing. The plywood was very wet when purchased and installed wet like most PT ...