Duro-Last DT80 Membrane - Manual

Duro-Last, “World’s Best Roof”, Duro-Bond, Duro-Tuff and Duro-Guard are registered marks owned by Duro-Last, Inc.
Created: 01/09/2014
DURO-TUFF
®
80 MIL MEMBRANE
1 of 2 www.duro-last.com 800-248-0280
Advantages:
Duro-Last ® Duro-Tuff ® 80 mil (DT80) membrane is an
excellent choice for low-slope roof projects requiring a
long lasting, energy efficient roofing membrane. The
complete line of Duro-Last custom prefabricated
accessories is compatible with the Duro-Tuff
membrane.
Description:
Duro-Tuff membrane incorporates a weft insertion
knitted scrim within PVC films to provide exceptional
strength and waterproofing.
PVC Film - Proprietary thermoplastic PVC
formulation of resins, plasticizers, stabilizers,
biocides, flame retardants, and U.V. absorbents.
 PVC film above scrim – 41 mils
Scrim - An 18 x 9 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 – 80 mils, nominal.
Weight – 0.51 lb. per sq. ft.
Color – Top surface: white. Bottom surface: light
gray.
Packaging – DT80 is supplied in the roll sizes
shown below. A full pallet contains ten rolls.
Roll Dimensions:
Dimensions
Estimated Coverage
Roll Weight
6 in. Overlap 1 4 in. Overlap 2
120 in. x 65 ft. 617 sq. ft. 628 sq. ft. 335 lb.
60 in. x 65 ft. 292 sq. ft. 303 sq. ft. 170 lb.
30 in. x 65 ft. 130 sq. ft. 140 sq. ft. 85 lb.
1 6-inch overlap and use of Duro-Last Poly or Cleat Plates.
2 4-inch overlap and use of Duro-Last Oval Plates.
Stripping – Stripping material can be field cut and/or
DT50 membrane, available in 10-inch wide rolls,
may be utilized.
Overlap Line – A green line, 6 inches from one
edge of the sheet, is factory applied to the top of the
sheet to assist in maintaining proper overlap
between sheets.
“T-Lap” Patches – A patch is required at all lap
areas where 3 or more layers of membrane intersect
(“T-Lap”). The minimum size of the patch is 4 x 4
inches or 4-inch diameter. Patches can be made of
either DT or DL membrane of any thickness. Refer to
detail drawing DT1066.
Seam Plate and Fastener Placement Guides –
“X”s are placed at 6-inch intervals along one edge of
the sheet to assist in maintaining proper spacing
between fasteners. Install fasteners so that the
outside edge of the seam plate is flush with the edge
of the sheet.
Energy Efficiency:
White DT80 membrane is an excellent product for
complying with California Title 24 and other energy
efficiency programs requiring the use of a highly
reflective roof membrane.
Cool Roof Rating Council (CRRC) 1
Solar
Reflectance
Thermal
Emittance
Solar Reflective
Index (SRI)
Initial 3-yr Initial 3-yr Initial 3-yr
White 0.85 P 2 0.89 P 2 108 P 2
1 Duro-Last’s CRRC Product ID: 0610.
2 3-year aged results pending.
Warranty:
The following warranties are available for projects
utilizing DT80 membrane. Contact Duro-Last for
warranty details. Consequential damage coverage
is not available for Duro-Tuff installations.
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 Material
Material Only Residential