Our Airlok® Sheet 400 Series of above-grade, non-permeable sheet membranes, available in various sizes, designed for air and moisture protection in both field and flashing applications. The rubberized-asphalt properties allow for the membrane to fully adhere tenaciously to itself, surface materials; such as wood, metal, sheathing, concrete, and fasteners that are left in place, which eliminates membrane blow-off and tears before exterior wall finish installation. Once installed and covered with cladding, the membranes are permanent and will not rot or decay from mildew or mold. The Airlok® Sheet 400 Series membranes are 40 mils thick and are available in various pre-cut sizes to meet the demands of traditional flashings and details.
We also offer a line of Airlok® Sheet 200 Series butyl-based products. As offered in our Airlok® Sheet 400 Series membranes, our Butyl products are designed for above-grade applications, are 28 mils thick and are available in full sheets as well as a variety of flashing options.