High temperature resistant Self-adhered with superior adhesion Made of aggressive rubberized asphalt and polyethylene film Slip resistant Seals around fasteners Protects under all sloped roofs Up to 120 days UV exposure Covered by CertainTeed's SureStart Warranty Roll Width: 36 Inch for both sizes Available Roll Lengths: 66.6 Feet and 75 Feet Roll Coverage: 200 square Foot (2 Square Roll) for the 66.6 Foot Roll and 225 square Foot (2.25 Square Roll) for the 75 Foot Roll Roll Weight: 56 pounds for the 66.6 Foot Roll and 61.4 pounds for the 75 Foot Roll 40 mils thick Tensile strength membrane: 250 psi (1720 kN/m2) The Grace Ice and Water Shield HT is a high-temperature self-adhered underlayment made for premium protection against severe climatic conditions such as wind, rain, and the build-up of ice dams. This Ice and Water Shield is made up of two waterproofing materials, including a rubberized asphalt adhesive and a polymeric film with UV barrier properties that allows it to withstand high-temperature applications up to 260 degrees Fahrenheit. This Grace ice & water shield is recommended to be used under most roofing materials, specifically metal, or in high-temperature areas due to its high-temperature resistance. Grace Ice & Water Shield HT has a quick fold less release paper, will not crack or dry out and is slip-resistant.