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®
DURO-LAST EV 60-MIL MEMBRANE

Advantages:
®
Duro-Last EV 60-Mil (EV60) membrane is an
excellent choice for low-slope roof projects requiring a
long lasting, energy efficient roofing membrane. The
®
™
inclusion of DuPont Elvaloy KEE (Ketone Ethylene
Ester) provides Duro-Last EV with superior physical
properties and performance characteristics. A
complete line of custom prefabricated accessories is
available for the EV60 membrane.
Description:
Duro-Last EV membrane incorporates a weft-inserted,
knitted scrim within KEE-containing films to provide
exceptional strength and waterproofing.
Duro-Last EV membranes must not be used with
Duro-Last, Duro-Fleece, or Duro-Tuff membranes.
KEE-containing Film - Proprietary thermoplastic
KEE-containing formulation of resins, plasticizers,
stabilizers, biocides, flame retardants, and U.V.
absorbents. Seam Plate and Fastener Placement Guides –
 PVC film above weft-inserted scrim – 31 mil “X”s are placed at 6-inch intervals along one edge of
the sheet to assist in maintaining proper spacing
Weft-Inserted Scrim - An 18 x 9 polyester fabric between fasteners. Install fasteners so that the
construction with weft insertion, composed of 840 x outside edge of the seam plate is flush with the edge
1000 denier threads, provides superior tear and of the sheet.
puncture resistance. The polyester thread is treated
to prevent wicking. “T-Lap” Patches – A patch, with rounded corners,
is required at all lap areas where 3 or more layers of
Total Thickness – 60 mil, nominal. membrane intersect (“T-Lap”). The minimum size of

Weight – 0.30 lb. per square foot. the patch is 4 x 4 inches or 4-inch diameter. Patches
can be made of either EV50 or EV60 membrane.
Color – Top surface: white. Bottom surface: white.
Energy Efficiency:
2
R-Value – 0.1 ft ·°F·hr/Btu.
Solar Thermal Solar Reflective

Packaging – EV60 is supplied in the roll sizes Reflectance Emittance Index (SRI)
shown below. A full pallet contains ten rolls. Initial 3-yr Initial 3-yr Initial 3-yr
1
Roll Dimensions: 1 White 0.86 P 1 0.89 P 2 108 P
Estimated Coverage 3-year aged results pending.
Dimensions 1 2 Roll Weight
6” Overlap 4” Overlap Warranty:
120 in. x 100 ft. 950 sq. ft. 967 sq. ft. 300 lb.
60 in. x 100 ft. 450 sq. ft. 467 sq. ft. 150 lb. The following warranties are available for projects
30 in. x 100 ft. 200 sq. ft. 217 sq. ft. 75 lb. utilizing EV60 membrane. Contact Duro-Last for
10 in. x 100 ft. Stripping 25 lb. warranty details. Consequential damage coverage
1
6 inch overlap and use of Duro-Last Poly or Cleat Plates. is not available for Duro-Last EV installations.
2
4 inch overlap and use of Duro-Last Oval Metal Plates.
Available Warranties
Overlap Line – A blue line, 6 inches from one edge
of the sheet, is factory applied to the top of the sheet Supreme Not applicable for this product
to assist in maintaining proper overlap between Ultra 15-YR High Wind 20-YR High Wind
sheets.
Basic 15-YR NDL 20-YR NDL
Residential 15-YR Material Only 20-YR Material Only

www.duro-last.com 1 of 2 800-248-0280
Duro-Last, “World’s Best Roof”, and Duro-Bond are registered trademarks owned by Duro-Last, Inc.
Elvaloy is a registered trademark owned by DuPont Company.
Created: 06/17/2012 Revised: 01/23/2015, 05/19/2015, 07/24/2015, 07/30/2015, 02/15/2016, 06/29/2016