Mohawk Moisture Barrier Underlayment made for Revwood and Click/Floating Vinyl Floors on concrete. The VU40 Underlayment has a 6 mil thick Polyethylene film with overlapping tape edges for easy installation. Order with 100 square foot roll per carton. A roll has a dimension of 45.69 inch wide and 316 inch long, providing excellent coverage. Creating the best moisture proof floors especially for Mohawk Revwood and Vinyl floors. For your health, Mohawk has designed the VU40 Moisture Barrier Underlayment with odorless and non toxic materials. Moreover, installation is quick and easy as it lays flat easily without the need of an adhesive. Reccomended for on-grade concrete slab subfloor installation. A premium underlayment to protect your floors from mold growth and fluctuating humidity. Order this essential accesory with your Mohawk Floorings now and save more in the long run. Call us for other inquiries about Mohawk Floors and Accesories.