Check the flatness of the subfloor. Use a straight piece of lumber that is between 8 and 10 feet in length to find any areas of the subfloor that aren't level. Simply lay down the plank and look for dips beneath it or raised humps. Mark any problem spots you find. Move the plank across the floor 1 way, then turn it diagonally and go across the surface again.
One of the best things about cork floors is that they are environmentally friendly because cork is a sustainable and renewable resource. The natural beauty of the material can suite any decor. The structure of the cork allows for a natural comfort and softness to absorb shock. This is why use of cork flooring is a good application in areas where people will be on their feet for extended periods of time. Using cork floors will reduce noise from traffic or dropping items, also because of the structure of the cork material. The natural properties of the material make it healthy because it is not only resistant to insects, but it is hypo-allergenic.
Glue down engineered hardwood, alternatively. If you don't want to nail down the boards, you do have the option of using adhesive to put engineered hardwood in place. It's a good choice, but won't last as long or be as sturdy as nailed down hardwood. The procedure is very similar to the nail-down process. Follow the adhesive manufacturer's instructions for installation and drying times. Hardwood Floor