Carlisle Carlisle Coatings & Waterproofing offers Water and Ice Protection (WIP) 300HT, a self-adhering underlayment developed specifically for use under metal surfaces. CCW WIP 300HT is a 40-mil, high tensile strength, rubberized asphalt underlayment designed to withstand temperatures up to 240°F. The rubberized asphalt is laminated to an impermeable polyethylene film layer, making CCW WIP 300HT a superior waterproofing underlayment that provides dual-barrier moisture protection. For more information, call 800-527-7092 or visit