Its not the moisture that its designed for, no wood is good around moisture, you must first test to make sure there is no seepage through the concrete by taping plastic down and letting it sit for a few day to see if it gets wet, if it does you cant put the wood floor down, and the instructions will say the same thing. The thing with the engineered wood is it is designed to be laid on concrete since it is built much the same way as plywood and wont shrink or expand like a regular hardwood floor can, which makes it good to glue directly to concrete, where you cant put regular 3/4" nail down hardwood.