Duro-Last DL50 Membrane - Manual

Duro-Last, “World’s Best Roof”, Duro-Guard and Duro-Bond are registered marks owned by Duro-Last, Inc.
Updated: 11/19/2013
DURO-LAST
®
50 MIL MEMBRANE
1 of 2 www.duro-last.com 800-248-0280
Advantages:
Duro-Last ® 50 mil (DL50) membrane is an excellent
choice for projects requiring a long lasting, energy
efficient roofing membrane. The membrane is
available in prefabricated sections or as roll goods.
The complete line of Duro-Last custom
prefabricated accessories is compatible with the
DL50 membrane.
Description:
DL50 membrane is composed of PVC film
laminated to both sides of a reinforcement fabric
(scrim).
PVC Film - Proprietary thermoplastic PVC
formulation of resins, plasticizers, stabilizers,
biocides, flame retardants, and U.V. absorbents.
The same PVC film is used on both sides of the
scrim.
• PVC film above scrim – 28 mils
• PVC film below scrim – 11 mils
Scrim – An 18 x 14 polyester fabric construction
composed of 840 x 1000 denier threads provides
superior tear and puncture resistance. The
polyester thread is treated to prevent wicking.
Total Thickness – 50 mil, nominal.
Weight – 0.29 lb. per sq. ft.
Colors – White, tan, gray, dark gray and terra cotta.
Available Configurations:
Prefabricated Sections – DL50 is available in
prefabricated sections up to 2,000 sq. ft. with a
maximum 80 ft. in either dimension.
Roll Good – Typical Dimensions
Width
Length
(max.)
Roll Area Approx.
Weight
Approx.
Coverage 1
64 inches 100 ft. 533 sq. ft. 155 lb. 483 sq. ft.
48 inches 100 ft. 400 sq. ft. 116 lb. 350 sq. ft.
32 inches 100 ft. 267 sq. ft. 77 lb. 217 sq. ft.
16 inches 100 ft. 133 sq. ft. 39 lb. 83 sq. ft.
1 Assuming 6 inch overlap.
Energy Efficiency:
White DL50 membrane is an excellent product for
complying with California Title 24, LEED
® and other
energy efficiency programs requiring the use of a
highly reflective roof membrane. It is an ENERGY
STAR
® qualified product.
Cool Roof Rating Council (CRC) 1
Solar
Reflectance
Thermal
Emittance
Solar Reflective
Index (SRI)
Initial 3-yr Initial 3-yr Initial 3-yr
White 0.88 0.68 0.87 0.84 111 82
Tan 0.39 P 2 0.89 P 2 43 P 2
Gray 0.47 P 2 0.89 P 2 54 P 2
Dark Gray 0.26 P 2 0.88 P 2 26 P 2
1 Duro-Last’s CRRC Product ID: 0610.
2 3-year aged results pending.
LEED & LEED-EB Credits - White DL50 membrane
alone can obtain 1 credit in either U.S. Green Building
Council’s LEED or LEED-EB programs. In
combination with other design criteria the membrane
may help attain other credits.
LEED Credit Category Duro-Last Attribute
Sustainable Sites Credit 7.2
Heat Island Effect: Roof
Solar Reflective Index (SRI)
SRI = 111
LEED-EB Credit Category Duro-Last Attribute
Sustainable Sites Credit 6.2
Heat Island Effect: Roof
ENERGY STAR Qualified
Thermal Emittance = 0.87
Warranty:
The following warranties are available for projects
utilizing DL50 membrane. Contact Duro-Last for
warranty details.
Available Warranties
10 Year Material Only
15 Year
NDL High Wind Hail High Wind + Hail
Material Only Residential
20 Year
NDL High Wind 15 + 5 15 + 5 Material
Pro-Rated Material Only Residential