Page 60 - Microsoft Word - 2_Inch_Drain_Adapter_PDS_2016_01_05
P. 60

®
                                                   ®
                                     DURO-GUARD  DENSDECK 1/4-INCH ROOF BOARD
            Fire Resistance Classifications                      Physical Properties
            DensDeck Roof Boards are excellent fire barriers     Properties                1/4” (6.4 mm)
            over combustible and noncombustible roof decks,
            including steel decks.                               Thickness, nominal        1/4” (6.4 mm) ± 1/16” (1.6 mm)
                                                                 Width, standard           4’ (1219 mm) ± 1/8” (3 mm)
            UL 790 Classification. DensDeck Roof Boards have     Length, standard          8’ (2438 mm) ± 1/4” (6.4 mm)
            been classified by Underwriters Laboratories (UL) for   Weight, nominal, lbs./sq. ft.
                                                                     2
            use as a fire barrier over combustible and           (Kg/m )                   1.2 (5.9)
            noncombustible decks in accordance with the          Surfacing                 Fiberglass mat
            ANSI/UL 790 test standard. The UL classification     Flexural Strength , parallel, lbf.
                                                                             1
            includes a comprehensive Class A, B or C rating. For   min.                    ≥40 (178)
            additional information concerning the UL 790         Flute Spanability 2       2-5/8” (67 mm)
            classification, consult the UL Certification Directory.   Permeance , Perms    >50 (2850)
                                                                         3
                                                                       4  2         2
            UL 1256 Classification. DensDeck Roof Boards have    R Value , ft •°F•hr/BTU (m •K/W)  .28
                                                                                                 -6
                                                                                                         -6
            also been classified by UL in roof deck constructions   Linear Variation with Change in   8.5 x 10  (15.3 x 10 )
                                                                 Temp., in/in °F (mm/mm/C°)
            for internal (under deck) fire exposure in accordance   Linear Variation with Change in   -6
            with the ANSI/UL 1256 Steiner Tunnel test. For       Moisture                  6.25 x 10
            additional information concerning the UL 1256        Water Absorption , % max   <10
                                                                             5
            classification, consult the UL Certification Directory.   Compressive Strength , psi
                                                                                 6
                                                                 nominal                   900
            FM Class 1 Approvals. DensDeck Roof Boards are       Surface Water Absorption, grams,   <2.5
            included in numerous roofing assemblies with a       nominal
            Factory Mutual (FM) Class 1 fire rating. For more    Flame Spread, Smoke Developed   0/0
                                                                 (ASTM E84)
            information concerning FM Approvals and FM Class 1   Bending Radius            5’ (1524 mm)
            assemblies with DensDeck Roof Boards, consult FM     1. Tested in accordance with ASTM C473 method B.
                      ®
            or RoofNav .                                         2. Tested in accordance with ASTM E661.
                                                                 3. Tested in accordance with ASTM E96 (dry cup method).
            UL Fire Resistance Ratings. For information          4. Tested in accordance with ASTM C518 (heat flow meter).
            concerning UL fire rated assemblies, please visit    5. Tested in accordance with ASTM C1177.
                                                                 6. Tested in accordance with ASTM C473.
            www.ul.com.

            Flame Spread and Smoke Developed. When tested
            in accordance with ASTM E84, DensDeck Roof           FIRE SAFETY CAUTION
            Boards had Flame Spread 0, Smoke Developed 0.        Passing a fire test in a controlled laboratory setting
                                                                 and/or certifying or labeling a product as having a
            Wind Uplift                                          one-hour, two-hour, or any other fire resistance or
            DensDeck Roof Boards are included in numerous        protection rating and, therefore, as acceptable for use
            assemblies evaluated by FM or other independent      in certain fire rated assemblies/systems, does not
            laboratories for wind uplift performance. For        mean that either a particular assembly/system
            information concerning such assemblies, please visit   incorporating the product, or any given piece of the
            www.roofnav.com.                                     product itself, will necessarily provide one-hour fire
                                                                 resistance, two-hour fire resistance, or any other
            Handling and Use–CAUTION                             specified fire resistance or protection in an actual fire.
            This product contains fiberglass facings which may   In the event of an actual fire, you should immediately
            cause skin irritation. Dust and fibers produced during   take any and all actions necessary for your safety and
            the handling and installation of the product may     the safety of others without regard for any fire rating
            cause skin, eye and respiratory tract irritation. Avoid   of any product or assembly/system.
            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.











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

                                    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
   55   56   57   58   59   60   61   62   63   64   65