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DURO-FLEECE 50-MIL MEMBRANE

Advantages:
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Duro-Last Duro-Fleece 50-Mil (DF50) membrane is
an excellent choice for projects requiring a long
lasting, energy efficient roofing membrane. The
combination of fleece and the proven performance of
Duro-Last roofing membrane results in an ideal
product for use in adhered and mechanically attached
applications over a wide variety of roof substrates. A
complete line of custom prefabricated accessories is
available for the DF50 membrane.
Energy Efficiency:
Description:
White DF50 membrane is an excellent product for
In addition to the fleece, DF50 membrane incorporates complying with California Title 24, LEED and other
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a weft-inserted, knitted scrim within PVC films to energy efficiency programs requiring the use of a
provide exceptional strength and waterproofing. highly reflective roof membrane.
Duro-Fleece membranes must not be used with Cool Roof Rating Council (CRRC)
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Duro-Last EV membranes.
Solar Thermal Solar Reflective
PVC Film - Proprietary thermoplastic PVC Reflectance Emittance Index (SRI)
formulation of resins, plasticizers, stabilizers, Initial 3-yr Initial 3-yr Initial 3-yr
biocides, flame retardants, and U.V. absorbents. 2 2
White 0.87 Pending 0.89 P 110 P
 PVC film above weft-inserted scrim – 26 mil 1 Duro-Last’s CRRC Product ID: 0610.
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3-year aged results pending.
Weft-Inserted Scrim - An 18 x 9 polyester fabric
construction with weft insertion, composed of 840 x LEED & LEED-EB Credits - White DF50 membrane
1000 denier threads, provides superior tear and alone can obtain 1 credit in either U.S. Green
puncture resistance. The polyester thread is treated Building Council’s LEED or LEED-EB programs. In
to prevent wicking. combination with other design criteria the membrane
may help attain many other credits.
Fleece - The 3.8-ounce per square yard needle-
punched polypropylene fleece provides excellent LEED Credit Category Duro-Last Attribute
properties for adhering to, or mechanically attaching Sustainable Sites Credit 7.2 Solar Reflective Index
over, a variety of substrates. Each roll of membrane Heat Island Effect: Roof SRI = 110
has one selvage edge where the fleece is held back LEED-EB Credit Category Duro-Last Attribute
3 inches to provide for hot-air welding to the Sustainable Sites Credit 7.2 Solar Reflective Index
underlying membrane. Heat Island Effect: Roof SRI = 110
Total Membrane Thickness – 50 mil, nominal. Warranty:
Overall Thickness (with Fleece) – 68 mil. The following warranties are available for projects
Weight – 0.33 lb. per square foot. utilizing DF50 membrane. Contact Duro-Last for
warranty details. Consequential damage coverage
Color – White. is not available for Duro-Fleece installations.
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R-Value – 0.1 ft ·°F·hr/Btu. Available Warranties
Packaging – DF50 is supplied in the roll sizes Supreme Not applicable for this product
shown below. A full pallet contains ten rolls.
Ultra 15-YR High Wind 20-YR High Wind
Roll Dimensions: Basic 15-YR NDL 20-YR NDL
Dimensions Estimated Coverage 1 Roll Weight
10 ft. x 100 ft. 975 sq. ft. 330 lb. Residential 15-YR Material Only 20-YR Material Only
5 ft. x 100 ft. 475 sq. ft. 165 lb.
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Assuming 3-inch overlap

www.duro-last.com 1 of 2 800-248-0280
Duro-Last, “World’s Best Roof”, Duro-Grip and Duro-Fleece are registered trademarks owned by Duro-Last, Inc.
LEED is a registered trademark owned by the U.S. Green Building Council.
Created: 07/02/2013 Revised: 07/06/2013, 11/19/2013, 11/21/2013, 01/23/2015, 05/18/2015, 02/15/2016