3. Appendix B- Basis-of-Design Specifications.pdf

DURO-LAST® 60-MIL MEMBRANE

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

LEED is a registered trademark owned by the U.S. Green Building Council.

Created: 09/01/2012 Revised: 11/13/2013, 05/28/2014, 06/05/2014, 01/23/2015, 05/18/2015, 01/22/2016, 02/15/2016, 08/15/2017, 03/29/2019, 09/23/2021, 08/04/2022

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Advantages:

Duro-Last® 60-Mil (DL60) is an excellent choice for projects requiring a long lasting, energy efficient roofing membrane. The membrane is available in custom-fabricated sections or as roll goods. A complete line of custom-fabricated accessories and parapets are available for use with DL60.

Description:

DL60 is composed of PVC film laminated to both sides of a reinforcement fabric (weft-inserted scrim).

Duro-Last membranes must not be used with Duro-Last EV membranes.

PVC Film – Proprietary thermoplastic PVC formulation of resins, plasticizers, stabilizers, biocides, flame retardants, and U.V. absorbents.

PVC film above weft-inserted scrim – 28 mil, nominal

Weft-Inserted Scrim – An 18 x 14 polyester fabric construction with weft insertion, composed of 840 x 1000 denier threads, provides superior tear and puncture resistance. The polyester thread is treated to prevent wicking.

Total Thickness – 60 mil, nominal.

Weight – 0.36 lb. per square foot.

Colors – White, tan, gray and dark gray.

R-Value – 0.1 R (0.1 ft2ꞏ°Fꞏhr/Btu).

Available Configurations:

Custom-fabricated Sections – DL60 is available in custom-fabricated sections as listed within the Ordering and Estimating section on the Duro-Last website.

Roll Dimensions1

Width Length (max.)

Roll Area Approx.

Weight

Approx.

Coverage2

64 inches 100 ft. 533 sq. ft. 192 lb. 483 sq. ft.

64 inches 50 ft. 267 sq. ft. 97 lb. 241 sq. ft.

32 inches 100 ft. 267 sq. ft. 97 lb. 217 sq. ft.

12 inches 100 ft. 100 sq. ft. 36 lb. N/A

8 inches 100 ft. 67 sq. ft. 25 lb. N/A 1 Custom rolls of maximum 64 in. by 240 ft. may be produced upon request.

2 Assuming 6-inch overlap.

Energy Efficiency:

White DL60 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.

Cool Roof Rating Council (CRRC)

CRRC

ID

Solar

Reflectance Thermal

Emittance

Solar Reflective Index (SRI)

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

White 0610- 0001a

0.86 0.74 0.89 0.89 108 91

Tan 0610-

0.39 0.33 0.89 0.89 43 35

Gray 0610-

0.47 0.40 0.89 0.89 54 45

Dark Gray 0610-

0.26 0.25 0.87 0.89 25 25

LEED-NC & LEED-EB Credits – White DL60 alone can obtain 1 credit in either U.S. Green Building Council’s LEED-NC or LEED-EB programs. In combination with other design criteria the membrane may help attain other credits.

LEED-NC Credit Category Duro-Last Attribute

Sustainable Sites Heat Island Reduction

Solar Reflective Index (SRI) = 108

LEED-EB Credit Category Duro-Last Attribute

Sustainable Sites Heat Island Reduction

Solar Reflective Index (SRI) = 108

Warranty:

The following warranties are available for projects utilizing DL60. Contact Duro-Last for warranty details.

Available Warranties

Supreme 15-Year NDL

Warranty

20-Year NDL Warranty

– 15 Years Consequential

Damages And 5 Years Material

20-Year NDL Warranty

– 15 Years Consequential

Damages And 5 Years Material and Labor

Ultra 15-Year NDL Hail Warranty1

15-Year NDL Hail & High Wind Warranty1

15-Year NDL High

Wind Warranty1

20-Year NDL High

Wind Warranty1

25-Year NDL High

Wind Warranty1, 2

Basic 15-Year NDL

Warranty1 20-Year NDL

Warranty1 25-Year NDL Warranty1, 2

Residential 15-Year Residential

Material Limited Warranty1 20-Year Residential

Material Limited Warranty1 1 Excludes consequential damage coverage.

2 Refer to the 25 and 30-Year Warranty Requirements for additional installation criteria.

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

LEED is a registered trademark owned by the U.S. Green Building Council.

Created: 09/01/2012 Revised: 11/13/2013, 05/28/2014, 06/05/2014, 01/23/2015, 05/18/2015, 01/22/2016, 02/15/2016, 08/15/2017, 03/29/2019, 09/23/2021, 08/04/2022

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DURO-LAST® 60-MIL MEMBRANE

800-248-0280

Codes and Standards:

Underwriters Laboratories (US & Canada), UL Evaluation Report (ER10128), FM Approvals, Canadian Construction Materials Centre (CCMC 13299-L), State of Florida, Miami-Dade County, Texas Department of Insurance.

Storage:

Store rolls lengthwise on pallets. Use tarps to keep rolls dry.

Membrane Attachment:

Mechanically Fastened – DL60 may be mechanically fastened to a variety of roof deck and wall materials. An appropriate slip sheet, insulation or cover board may be required. Refer to the Duro-Last Mechanically Fastened Roofing System Specification for custom-fabricated system requirements. If using roll goods, refer to the Duro-Last Roll Good Mechanically Fastened Roofing System Specification.

Induction welded – Induction welding may be used to attach DL60. An appropriate slip sheet, insulation or cover board may be required. Refer to the Duro-Bond® Induction Weld Roofing System Specification for system requirements.

Adhered – DL60 may be adhered to a variety of properly prepared roof decks, walls, cover boards and insulations. Refer to the Adhered Roofing System Specification for system requirements.

Physical Properties:

DL60 has been subjected to the tests required by ASTM D4434 “Standard Specification for Poly (Vinyl Chloride) Sheet Roofing” and has been classified as a Type III, internally reinforced sheet. The results of each test are listed below. ASTM’s Overall Thickness requirements for the membrane are plus or minus 10% (nominal) of the listed Typical Value.

Physical Property Test Method ASTM D4434 Requirement Result Typical Value

Overall Thickness ASTM D751

0.054 and ≤ 0.066 in.

( 54 and ≤ 66 mil) PASS 0.060 in. (60 mil), nominal

Thickness Over Scrim ASTM D7635 0.016 in. PASS 0.028 in. (28 mil)

Breaking Strength1 ASTM D751 Grab Method 200 lbf./in. PASS 438 x 390 lbf./in.

Elongation1 ASTM D751 Grab Method 15% PASS 31% x 31%

Seam Strength ASTM D751 Grab Method 328 lbf.

(75% of Breaking Strength.)

PASS 431 lbf.

Tear Strength1 ASTM D751 Procedure B 45 lbf. PASS 132 x 163 lbf.

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 Aging ASTM G155

10,000 hours total test time.

Irradiance level of 0.35 W/m2-340nm.

Cycle: 102 minutes light, 18 minutes light + H20 spray, 63±2.5° C black panel, 30±5% RH

PASS PASS

Dimensional Stability1 ASTM D1204 Conditioned for 6 hours in oven maintained at 176 F.

Allowable change: ≤ 0.5%

PASS -0.45% x -0.20%

Water Absorption ASTM D570 Immersed in water at 158 F for 168 hours.

Allowable weight change: ≤ 3%

PASS 2.6%

Static Puncture ASTM D5602 33 lbf. PASS 56 lbf.

Dynamic Puncture ASTM D5635 14.7 ft-lbf. (20 J) PASS 14.7 ft-lbf. (20 J) 1 Typical values are shown for both machine and cross machine directions. The machine direction results are listed first.

Additional Tests Fungi Resistance ASTM G21 No Sustained Growth or Discoloration

Moisture Vapor Transmission ASTM E96, Proc. B, Method A < 0.35 U.S. perms

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

DensDeck is a registered mark owned by Georgia-Pacific Gypsum LLC. RoofNav is a registered mark owned by FM Global.

Created: 01/07/2015

DURO-GUARD® DENSDECK® PRIME

1/4-INCH ROOF BOARD

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Description DensDeck® Prime Roof Board has been enhanced to provide a broader compatibility and higher performance with roofing adhesives. Face mat enhancements allow adhesives to be applied more uniformly and consistently. DensDeck Prime Roof Boards reduce the amount of mastic or adhesive used and potentially eliminates field primers. The DensDeck Prime Roof Board design employs fiberglass mats front and back that are mechanically bonded to a high density gypsum core, providing excellent fire resistance and wind uplift properties.

The unique construction of DensDeck Prime Roof Board provides superior flute spanning that stiffens and provides increased foot traffic resistance to the roof deck. Additionally, DensDeck Prime Roof Board has been shown to withstand delamination, deterioration and job-site damage far more effectively than roofing membrane substrates such as paperfaced gypsum board, fiberboard and perlite insulation.

Primary Uses DensDeck Prime Roof Board can be used as a recovery board and overlayment protection board for polyisocyanurate and polystyrene insulation.

Standards and Code Approvals DensDeck Prime Roof Boards are manufactured to meet ASTM C1177 and have the following approvals:

• Florida Product Approved

• Miami-Dade County, Product Control Approved

Recommendations and Limitations DensDeck Prime Roof Boards are manufactured to act with a properly designed roof system following good roofing practices. The actual use of DensDeck Prime Roof Board as a roofing component in any system or assembly is the responsibility of the roofing system’s design authority. Consult with the appropriate design authority for system and assembly specifications and instructions on applying other products to DensDeck Prime Roof Board.

DensDeck Prime Roof Boards should not be subjected to abnormal or excessive loads or foot traffic, such as, but not limited to, use on plaza decks or under steel-wheeled equipment that may fracture or damage the panels. Provide suitable roofing system protection when required.

Moisture Management DensDeck Prime Roof Boards, like other components used in roofing systems, must be protected from exposure to moisture before, during and after installation.

Remove the plastic packaging from all DensDeck Prime Roof Board immediately upon receipt of delivery. Failure to remove the plastic packaging may result in entrapment of condensation or moisture.

DensDeck Prime Roof Board stored outside must be stored level and off the ground and protected by a breathable waterproof covering. Provide means for air circulation around and under stored bundles of DensDeck Prime Roof Board. DensDeck Prime Roof Board must be covered the same day as installed.

Avoid application of DensDeck Prime Roof Boards during rain, heavy fog and any other conditions that may deposit moisture on the surface, and avoid the overuse of non-vented, direct-fired heaters during winter months. When roofing systems are installed on newly poured concrete or light weight concrete decks or when re-roofing over an existing concrete deck, a vapor barrier should be installed above the concrete to limit the migration of water from the concrete into the roof assembly. Always consult a design authority for specific instructions for applying other products to DensDeck Prime Roof Boards.

Moisture vapor movement by convection must be eliminated, and the flow of water by gravity through imperfections in the roof system must be controlled.

After a leak has occurred, no condensation on the upper surface of the system should be tolerated, and the water introduced by the leak must be dissipated to the building interior in a minimum amount of time.

Although DensDeck Prime Roof Boards are engineered with fiberglass facings and high density gypsum cores, the presence of free moisture can have a detrimental effect on the performance of the product. Moisture accumulation may also significantly decrease wind uplift and vertical pull resistance in the system or assembly. DensDeck Prime Roof Boards containing excessive free moisture content may need to be evaluated for structural stability to assure wind uplift performance.

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

DensDeck is a registered mark owned by Georgia-Pacific Gypsum LLC. RoofNav is a registered mark owned by FM Global.

Created: 01/07/2015

DURO-GUARD® DENSDECK® PRIME 1/4-INCH ROOF BOARD

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Fire Resistance Classifications DensDeck Prime Roof Boards are excellent fire barriers over combustible and noncombustible roof decks, including steel decks.

UL 790 Classification. DensDeck Prime Roof Boards have been classified by Underwriters Laboratories (UL) for use as a fire barrier over combustible and noncombustible decks in accordance with the ANSI/UL 790 test standard. The UL classification includes a comprehensive Class A, B or C rating. For additional information concerning the UL 790 classification, consult the UL Certification Directory.

UL 1256 Classification. DensDeck Prime Roof Boards have also been classified by UL in roof deck constructions for internal (under deck) fire exposure in accordance with the ANSI/UL 1256 Steiner Tunnel test. For additional information concerning the UL 1256 classification, consult the UL Certification Directory.

FM Class 1 Approvals. DensDeck Prime Roof Boards are included in numerous roofing assemblies with a Factory Mutual (FM) Class 1 fire rating. For more information concerning FM Approvals and FM Class 1 assemblies with DensDeck Roof Boards, consult FM or RoofNav®.

UL Fire Resistance Ratings. For information concerning UL fire rated assemblies, please visit www.ul.com.

Flame Spread and Smoke Developed. When tested in accordance with ASTM E84, DensDeck Prime Roof Boards had Flame Spread 0, Smoke Developed 0.

Wind Uplift DensDeck Roof Boards are included in numerous assemblies evaluated by FM or other independent laboratories for wind uplift performance. For information concerning such assemblies, please visit www.roofnav.com.

Handling and Use–CAUTION This product contains fiberglass facings which may cause skin irritation. Dust and fibers produced during the handling and installation of the product may cause skin, eye and respiratory tract irritation. Avoid breathing dust and minimize contact with skin and eyes. Wear long sleeve shirts, long pants and eye protection. Always maintain adequate ventilation. Use a dust mask or NIOSH/MSHA approved respirator as appropriate in dusty or poorly ventilated areas.

Physical Properties Properties 1/4” (6.4 mm)

Thickness, nominal 1/4” (6.4 mm) ± 1/16” (1.6 mm)

Width, standard 4’ (1219 mm) ± 1/8” (3 mm)

Length, standard 4’ (1219 mm) and 8’ (2438

mm) ± 1/4” (6.4 mm)

Weight, nominal, lbs./sq. ft.

(Kg/m2)

1.2 (5.9)

Surfacing Fiberglass mat with non-asphaltic coating

Flexural Strength1, parallel, lbf.

min.

≥40 (178)

Flute Spanability2 2-5/8” (66.7 mm)

Permeance3, Perms >30 (1710)

R Value4, ft2•°F•hr/BTU (m2•K/W) .28

Linear Variation with Change in Temp., in/in °F (mm/mm/C°)

8.5 x 10-6 (15.3 x 10-6)

Linear Variation with Change in Moisture

6.25 x 10-6

Water Absorption5, % max <10

Compressive Strength6, psi nominal

Surface Water Absorption, grams, nominal

<2.0

Flame Spread, Smoke Developed

(ASTM E84)

0/0

Bending Radius 4’ (1219 mm)

1. Tested in accordance with ASTM C473 method B.

2. Tested in accordance with ASTM E661.

3. Tested in accordance with ASTM E96 (dry cup method).

4. Tested in accordance with ASTM C518 (heat flow meter).

5. Tested in accordance with ASTM C1177.

6. Tested in accordance with ASTM C473.

FIRE SAFETY CAUTION

Passing a fire test in a controlled laboratory setting and/or certifying or labeling a product as having a one-hour, two-hour, or any other fire resistance or protection rating and, therefore, as acceptable for use in certain fire rated assemblies/systems, does not mean that either a particular assembly/system incorporating the product, or any given piece of the product itself, will necessarily provide one-hour fire resistance, two-hour fire resistance, or any other specified fire resistance or protection in an actual fire.

In the event of an actual fire, you should immediately take any and all actions necessary for your safety and the safety of others without regard for any fire rating of any product or assembly/system.

ROOF TRAK® III WALKWAY PAD

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Created: 01/01/2009 Revised: 10/14/2013, 01/12/2016

Description:

Roof Trak® III is a non-skid, maintenance-free walkway/protection pad. Roof Trak III is an extruded pad made from both recycled Duro-Last® membrane and an oriented-strand polyester reinforcement.

Duro-Last, Inc. manufactures the Roof Trak III Walkway Pad to provide protection in heavily traveled rooftop areas. It also provides added protection around mechanical equipment and as a separator for sleepers that support mechanical equipment. Field and laboratory testing have proven that Roof Trak III can be used in all seasons and applications.

Roof Trak III utilizes factory-attached, 4-inch wide, white membrane skirts for attachment to the field membrane by heat welding (hot-air).

Duro-Last, Inc. manufactures Roof Trak III in the colors and skirt configurations shown in the table below.

TABLE 1. ROOF TRAK III AVAILABLE COLORS AND SKIRT

CONFIGURATIONS

Sizes Colors Attachment

Skirts

30 in. x 60 in.

White, Tan and Gray solid colors.

White with safety-yellow skirts.

2 skirts along 60-in. sides

60 in. x 60 in.

White, Tan and Gray solid colors.

White with safety-yellow skirts.

2 skirts along 60-in. sides

30 in. x 60 in.

White solid color.

White with safety-yellow skirts.

Fully skirted along all 4 sides

Installation:

1. Roof Trak III attachment skirts shall be heat-welded (hot-air) to the field membrane using a 1.5-inch wide weld along the entire length of the skirt.

2. Walkway pads installed directly over field seams shall have one side unattached to allow for the inspection of field seams for warranty purposes.

Following inspection, the unattached skirt must be welded to the roof membrane.

3. A 1-inch gap is required between sections of walkway pad to allow for proper water drainage.

Figure 1. Roof Trak III Available Sizes

TABLE 2. TYPICAL PHYSICAL PROPERTIES

Property Result (US) Result (metric)

Thickness 0.135 in. 3 mm

Weight 0.79 lb./ft.2 3.9 kg/m2

Breaking Strength (machine direction)

516 lb. 2,296 N

Breaking Strength (cross machine direction)

489 lb. 2,176 N

Elongation (machine direction)

50% 50%

Elongation (cross machine direction)

64% 64%

Tear Strength (machine direction)

45 lb. 200 N

Tear Strength (cross machine direction)

71 lb. 316 N

Static Coefficient of Friction (Dry)

0.95

Static Coefficient of Friction (Wet)

1.19