I am preparing to install a laminate floating floor over a concrete slab in my basement. The concrete slab is installed in what appear to be 18' x 18' squares, broken up across the dimensions of my basement. The slabs are separated by 1/2" wide control joints.
Do I need to fill these joints in with a foam, concrete, or other kind of patch prior to installing a floating floor? The flooring is the Home Depot Pergo flooring with built-in padding. I am going to install a 6 mil vapor barrier on top of the slab prior to installing the flooring. The flooring will be installed perpendicular to the control joints.