DELTA-FL 3-1/2 Ft. W x 30 F L Air-Gap Underlayment, 105 Sq. Ft./Roll

Subfloor system for concrete and slab floors to keep moisture out. Heavy duty, dimpled plastic membrane installed with the dimples down creates an air space above the slab. Fully sealed vapor barrier prevents moisture from coming into the room, making the floor feel warm and dry. Install under laminate floors, carpeting with underlay, vinyl flooring, and hardwood flooring. Non-toxic, non-polluting, non-allergenic, and odor free.