Ultra HT Wind & Water Seal® is a 45-mil, self-adhering, steep-slope roofing underlayment composed of tough, cross-laminated polyethylene film with a surface coating for excellent foot traction. Ultra HT utilizes a high temperature rated adhesive system rated to 250 degrees Fahrenheit for metal roofing systems where high heat is generated. The product rolls out flat, self-seals around roofing fasteners, and aggressively adheres to the substrate. Available in a 36-inch by 67-foot roll, Ultra HT comes with a 10-year warranty and is manufactured in the USA. For more product information including approvals, technical data, and installation instructions, visit www.mfmbp.com/ultra-ht-wind-water-seal or call 800-882-7663.