I was given about 25 boxes of satinfinish hardwood flooring. Its 3 " tongue and groove engineered flooring. The manufacturer does not recommend that it be installed in basements. Another manufacturer of a very similar product says their product can be installed on basement floors directly on the concrete. My basement is very dry. Should I go ahead and install it? Should I glue it down or let it "float"? If I let it float, I can use some sort of vapour barrier. Thanks. Steve.