COREtec Plus is an engineered Luxury Vinyl Tile (LVT) floor or COREtec. This floor is made of a vinyl top layer with an attractive image of a familiar surface design. The floor has a middle core made from an extruded waterproof core made of recycled wood and bamboo, limestone, and virgin vinyl. This core is extremely stable and will not expand or contract. The bottom layer is an attached cork underlayment of cork which adds sound insulation and naturally resists mold, mildew and odors.