The Black Strengthened EPDM Rubber Sheets with Adhesive Back for Waterproofing can withstand sunlight, ozone, and water. They are designed with sturdy fiberglass cloth that can retain high stress and flex. Thickness: 1/2 Inch Thickness Tolerance: -0.047" to +0.047" Inch Durometer: 60A Medium Temperature Range: -40° to 240° F Tensile Strength: 1,500 psi Color: Black Width: 36 Inches Length: Dependent Upon Length Desired. To order required length, please, put the number of feet needed in the quantity box.