Duro-Last DFP50 User Manual

Advantages:

Duro-Last

Duro-Fleece Plus™ 50 mil (DFP50) 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. The complete line of Duro-Last custom prefabricated accessories is compatible with the DFP50 membrane.

Description:

In addition to the fleece, DFP50 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 – 28 mil

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.

Fleece - The 5.5 ounce per square yard polypropylene fleece provides excellent properties for adhering to, or mechanically attaching over, a variety of substrates. Each roll of membrane has one selvage edge where the fleece is held back 3 inches to provide for hot-air welding to the underlying membrane.

Total Membrane Thickness – 50 mil, nominal. Overall Thickness (with Fleece) – 80 mil. Weight – 0.35 lb. per sq. ft. Color – White.

Available Configurations:

Roll Good – Dimensions

Product

Name

DFP50

Dimensions

10 ft. x 100 ft.

5 ft. x 100 ft.

Estimated

Coverage

975 sq. ft. 475 sq. ft.

Roll Weight

350 lb. 175 lb.

DURO-FLEECE PLUS™ 50 MIL MEMBRANE

PRODUCT DATA SHEET

DATE: 7/6/2013

Energy Efficiency:

White DFP50 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

Cool Roof Rating Council (CRRC)

LEED & LEED-EB Credits - White DFP50 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 many other credits.

Warranty:

Duro-Fleece Plus warranties are available for projects utilizing DFP50 membrane. Contact Duro-Last for warranty details.

qualified product.

Solar

Reflectance

Initial 3-yr Initial 3-yr Initial 3-yr

White 0.88 0.68 0.87 0.84 111 82

Duro-Last’s CRRC Product ID: 0610.

LEED Credit Category Duro-Last Attribute

Sustainable Sites Credit 7.2 Heat

Island Effect: Roof

LEED-EB Credit Category Duro-Last Attribute

Sustainable Sites Credit 7.2 Heat

Island Effect: Roof

Available Warranties

10 Year Material Only

15 Year

20 Year

NDL High Wind Hail High Wind + Hail

Material Only Residential

NDL High Wind 15 + 5 15 + 5 Material

Pro-Rated Material Only Residential

Thermal

Emittance

Solar Reflective Index

Solar Reflective

Index (SRI)

SRI = 111

1 of 2 www.duro-last.com 800-248-0280

DURO-FLEECE PLUS 50 MIL MEMBRANE

PRODUCT DATA SHEET

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 – DFP50 membrane may be adhered to a variety of properly prepared roof decks, walls, cover boards and insulations including structural concrete, gypsum, lightweight concrete, DensDeck SECUROCK existing built-up roof (BUR) by using Duro-Fleece

Gypsum-Fiber Roof Board, and Duro-Guard® ISO products. It may be adhered directly to an

Adhesive or splatter applied Duro-Grip® CR-20. Prior written

Prime Roof Board,

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 – DFP50 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:

DFP50 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

Thickness Over Scrim ASTM D751

Breaking Strength1 ASTM D751 Grab Method

Elongation1 ASTM D751 Grab Method

Seam Strength ASTM D 751 Grab Method

Tear Strength1 ASTM D751 Procedure B

Low Temp. Bend ASTM D2136

Heat Aging ASTM D3045

Accelerated Weathering

Dimensional Stability1 ASTM D1204

Water Absorption ASTM D570

Static Puncture ASTM D5602

Dynamic Puncture ASTM 5635

Typical values are shown for both machine and cross machine directions. The machine direction results are listed first.

ASTM G154

(formerly G53)

Conditioned for 56 days in oven

Irradiance level of 0.68 W/m2-nm.

4 hour condensation at 122 °F

Conditioned for 6 hours in oven

Immersed in water at 158 °F

Allowable Weight Change: ≤ 3%

≥ 0.045 in.

≥ 0.016 in.

≥ 200 lbf./in.

≥ 15%

≥ 370 lbf.

(75% of Breaking Strength)

≥ 45 lbf

Must Pass at – 40 °F

maintained at 176 °F

5,000 hour total test time.

Cycle: 8 hour at 145 °F,

maintained at 176 °F.

Allowable change: ≤ 0.5%

for 168 hours.

≥ 33 lbf

≥ 14.7 ft-lbf (20 J)

PASS

PASS 28 mil

PASS 541 lbf x 494 lbf 1

PASS 20% x 22%

PASS 485 lbf

PASS 182 lbf x 195 lbf 1

PASS PASS

PASS 0.16% x 0.27% 1

PASS 1.3%

PASS

50 mil, nominal

(with fleece: 80 mil)

≥ 33 lbf

≥ 14.7 ft-lbf

www.duro-last.com

Duro-Last, “World’s Best Roof” and Duro-Fleece are registered marks owned by Duro-Last, Inc.

2 of 2

800-248-0280