Duro-Last DFP60 Membrane - Manual (Page 2)

DURO-FLEECE PLUS 60 MIL MEMBRANE
PRODUCT DATA SHEET
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Duro-Last, “World’s Best Roof” and Duro-Fleece are registered marks owned by Duro-Last, Inc.
www.duro-last.com 800-248-0280
Codes and Standards:
Underwriters Laboratories (US & Canada), FM Approvals, ICC-ES (ESR-1660), State of Florida, Miami-Dade
County, Texas Department of Insurance.
Storage:
Store rolls on pallets. Use tarps to keep rolls dry.
Membrane Attachment:
Adhered – DFP60 membrane may be adhered to a variety of properly prepared roof decks, walls, cover boards
and insulations including structural concrete, gypsum, lightweight concrete, DensDeck
® Prime Roof Board,
SECUROCK ® Gypsum-Fiber Roof Board, and Duro-Guard ® ISO products. It may be adhered directly to an
existing built-up roof (BUR) by using Duro-Fleece ® Adhesive or splatter applied Duro-Grip ® CR-20. Prior written
approval from the Duro-Last Engineering Services Department is required prior to adhering to BUR. Refer to the
Adhered Duro-Fleece Roofing System Specification for substrate preparation and acceptable adhesives.
Mechanically Fastened – DFP60 membrane may be mechanically attached to a variety of roof deck and wall
materials. An appropriate slip sheet or cover board may be required. Refer to the Duro-Last Mechanically
Fastened Systems Specification for system requirements.
Physical Properties:
DFP60 membrane has been subjected to the tests required by ASTM 4434 “Standard Specification for Poly (Vinyl
Chloride) Sheet Roofing” and has been classified as a Type III, internally reinforced sheet with a fabric backing.
The results of each test as well as typical values are listed below.
Physical Property Test Method ASTM 4434 Requirement Result Typical Value
Overall Thickness ASTM D751 ≥ 0.045 in. PASS
60 mil, nominal
(with fleece: 90 mil)
Thickness Over Scrim ASTM D751 ≥ 0.016 in. PASS 32 mil
Breaking Strength 1 ASTM D751 Grab Method ≥ 200 lbf./in. PASS 546 lbf x 490 lbf 1
Elongation 1 ASTM D751 Grab Method ≥ 15% PASS 21% x 39% 1
Seam Strength ASTM D 751 Grab Method
≥ 367 lbf.
(75% of Breaking Strength)
PASS 539 lbf
Tear Strength 1 ASTM D751 Procedure B ≥ 45 lbf PASS 104 lbf x 192 lbf 1
Low Temp. Bend ASTM D2136 Must Pass at – 40 °F PASS PASS
Heat Aging ASTM D3045
Conditioned for 56 days in oven
maintained at 176 °F
PASS PASS
Accelerated Weathering
ASTM G154
(formerly G53)
5,000 hour total test time.
Irradiance level of 0.68 W/m2-nm.
Cycle: 8 hour at 145 °F,
4 hour condensation at 122 °F
PASS PASS
Dimensional Stability 1 ASTM D1204
Conditioned for 6 hours in oven
maintained at 176 °F.
Allowable change: ≤ 0.5%
PASS 0.16% x 0.16% 1
Water Absorption ASTM D570
Immersed in water at 158 °F
for 168 hours.
Allowable Weight Change: ≤ 3%
PASS 2.2%
Static Puncture ASTM D5602 ≥ 33 lbf PASS ≥ 33 lbf
Dynamic Puncture ASTM 5635 ≥ 14.7 ft-lbf (20 J) PASS ≥ 14.7 ft-lbf
1 Typical values are shown for both machine and cross machine directions. The machine direction results are listed first.