I'm considering installing engineered hardwood flooring in my house. The house is built on a concrete slab, so traditional tongue & groove flooring nailed to the subfloor is not an option. So gluing an engineered product with a finished hardwood top layer is the material of choice. But I'm getting conflicting information on what is needed in the way of surface preparation. Two questions:
1) Does the surface of the concrete need to be leveled as you would do for ceramic tile, or does the adhesive used for wood flooring perform that function as well?2) Do I need to seal the cracks in the slab before I put down the flooring? The house is 9-1/2 years old, and settling cracks have developed in the concrete in just about every room - none over 1/16" wide, but I'm thinking these cracks could be a path for ground dampness (and maybe termites?) to get at the flooring.
Thanks!
--Steve