I want to rip out the carpet in my living & dining room this Summer and install hard wood floors. I'm going to be living there for awhile so I am going to go solid hardwood and not laminate. I've helped a guy install laminate and he glued it to the slab. Is it the same for hardwood floors or can you not glue them? Do you have to put a barrier between the wood and slab besides glue, assuming you can glue them?