Hi, all. I'm a homeowner about to install Coretec Plus and, pulling out the old, beat up hardwood I found I had an old plank subfloor instead of plywood. The planks are in pretty good condition and mostly level, but there are some areas where planks are lower or higher than others, and a few spots where a plank is loose. To be safe should I just put a layer of Luan over the plank subfloor and then put the Coretec on top of that or is that an extra step and expense that I don't need to worry about? Is a plank floor in generally good shape alright to have Coretec installed directly on top of it? Thanks in advance for your help.

Sincerely,

Jason Bloom