Rigid Plus and Rigid Plus Premium floors are made from high density thermoplastic composite. The rigid stable body allows for installation over most existing subfloors that may be uneven, cutting costly floor removals and leveling. Rigid Plus can be installed over laminate, wood, stone, cement, vinyl, and tile. Reward Rigid Plus & Rigid Plus Premium products do not contain wood fibers and therefore do not absorb moisture. The floors feature extra tight seams that block water from going through.