Engineered wood floors underlay at present and more people use because it has various advantages.
One advantage is that it can in sandpaper if any scratches. This material made with Melamine by infusions of paper on top while the composite wood chips on the bottom.
Floating wooden floor can be carried out on your floor. You must ascertain whether that type of suitable solid wood. This is because solid wood is very susceptible to expansion. A floating floor directly tied down by sub nailing or gluing down.
Omit in summer the water vapor reaction to the wood floor so the humidity will be higher. The reverse will applies in the dry winter.