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Document record
This two-page product data sheet covers Duro-Last EV Fleece EVF60, a 60-mil white membrane with a 5.5-ounce per square yard needle-punched polypropylene fleece. The file was created on January 20, 2023 and revised on October 16, 2025. The films contain DuPont Elvaloy KEE over an 18 by 9 polyester scrim, with 28-mil nominal film above the scrim and a 90-mil overall thickness with fleece.
The membrane weighs 0.39 pounds per square foot, and both surfaces are white. Roll sizes are 120 inches by 100 feet, covering 975 square feet and weighing 390 pounds, and 60 inches by 100 feet, covering 475 square feet and weighing 195 pounds, both assuming a 3-inch overlap. Item numbers are 661489 and 661488. The fleece is held back 2.25 inches on one selvage edge for hot-air welding.
The white CRRC entry, ID 0610-0011, lists solar reflectance of 0.86 initially and 0.71 after three years, and SRI of 108 initially and 87 after three years. EVF60 can be adhered over an existing built-up roof with approved membrane adhesives, and the file requires adhesion pull tests of 150 pounds per square foot on a 1 by 1-foot area. The file also names UL Evaluation Report ER10128, FM Approvals, State of Florida, Miami-Dade County and Texas Department of Insurance.
Material changes / notes
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