HomeMy WebLinkAboutB17-0313_DensDeck 2.pdf .
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DensDeck® Technical Service Hotline 1.800.225.6119 or
Prime Roof Boardwww.densdeck.com
Moisture accumulation may also significantly decrease wind uplift and vertical pull and have been approved by FM as such for insulated steel deck roofs when installed
resistance in the system or assembly.DensDeck®Prime Roof Boards containing according to the conditions identified by FM.For more information concerning FM
excessive free moisture content may need to be evaluated for structural stability Approvals and FM Class 1 assemblies with DensDeck Prime Roof Boards,consult
to assure wind uplift performance. FM or RoofNav®.
Fire Resistance Classifications Type X. 5/8"(15.9 mm)DensDeck®Prime Fireguard®Roof Boards are manufactured
DensDeck Prime Roof Boards are excellent fire barriers over combustible and to meet the"Type X"requirements of ASTM C1177 for increased fire resistance
noncombustible roof decks,including steel decks. beyond regular gypsum board.
UL 790 Classification. DensDeck Prime Roof Boards have been classified by UL Fire Resistance Ratings. 5/8"(15.9 mm)DensDeck Prime Fireguard Roof Boards
Underwriters Laboratories LLC(UL)for use as a fire barrier over combustible and are designated as Type DD by UL and included in assembly designs investigated by
noncombustible decks in accordance with the ANSI/UL 790 test standard.The UL for hourly fire resistance ratings.5/8"(15.9 mm)DensDeck Prime Fireguard Roof
UL classification includes a comprehensive Class A,B or C rating.For additional Boards may also replace any unclassified 5/8"(15.9 mm)gypsum board in an
information concerning the UL 790 classification,consult the UL Certification Directory. assembly in the UL Fire Resistance Directory under the prefix"P".
UL 1256 Classification. DensDeck Prime Roof Boards have also been classified by Flame Spread and Smoke Developed. When tested in accordance with ASTM E84,
UL in roof deck constructions for internal(under deck)fire exposure in accordance DensDeck Prime Roof Boards had Flame Spread 0,Smoke Developed 0.
with the ANSI/UL 1256 Steiner Tunnel test For additional information concerning Wind Uplift
the UL 1256 classification,consult the UL Certification Directory. DensDeck Prime Roof Boards are included in numerous assemblies evaluated by
FM Class 1 Approvals. DensDeck Prime Roof Boards are included in numerous roofing FM or other independent laboratories for wind uplift performance.For information
assemblies with a Factory Mutual(FM)Class 1 fire rating.1/4"(6.4 mm)DensDeck concerning such assemblies,please visit www.roofnay.com.
Prime Roof Boards have passed testing under the FM Calorimeter Standard 4450
Physical Properties
Properties 1/4"(6.4 mm) 1/2"(12.7mm) 5/8"(15.9 mm
Thickness,nominal 1/4"(6.4 mm)±1/16"(1.6 mm) 1/2"(12.7 mm)±1/32"(.8 mm) 5/8"(15.9 mm)±1/32"1.8 mm)
Width,standard 4'(1219 mm)±1/8"(3 mm) 4'(1219 mm)±1/8"(3 mm) 4'(1219 mm)±1/8"(3 mm)
Length,standard 4'(1219 mm)and 4'(1219 mm)and 4'(1219 mm)and
8'(2438 mm)±1/4"(6.4 mm) 8'(2438 mm)±1/4"(6.4 mm) 8'(2438 mm)±1/4"(6.4 mm)
Weight,nominal,lbs./sq.ft.(Kg/m2) 1.2(5.9) 2.0(9.8) 2.5(12.2)
Surfacing Fiberglass mat with Fiberglass mat with Fiberglass mat with
non-asphaltic coating non-asphaltic coating non-asphaltic coating
Flexural Strength',parallel,lbf.min.(N) 240(178) 280(356) 100(444)
Flute Spanability' 2-5/8"(66.7 mm) 5"(127 mm) 8"(203 mm)
Permeance',Perms(ng/Pa•S•m2) >30(>1710) >23(>1300) >17(>970)
R Value',ft2-°F•hr/BTU(mz•K/W) .28 .56 .67
Linear Variation with Change in Temp.,
in/in°F(mm/mm/C°) 8.5x10-6(15.3x 10 s) 8.5x106(15.3x106) 8.5x10'(15.3x10')
Linear Variation with Change in Moisture 6.25 x 10-' 6.25 x 10-' 6.25 x 10-6
Water Absorption',%max <10 <10 <10
Compressive Strength',psi nominal 900 900 900
Surface Water Absorption,grams,nominal <2.0 <2.0 <2.0
Flame Spread,Smoke Developed(ASTM E84) 0/0 0/0 0/0
Bending Radius 4'(1219 mm) 6'(1829 mm) 8'(2438 mm)
1.Tested in accordance with ASTM C473 method B. 4.Tested in accordance with ASTM C518(heat flow meter).
2.Tested in accordance with ASTM E661. 5.Specified values per ASTM C1177.
3.Tested in accordance with ASTM E96(drycup method). 6.Tested in accordance with ASTM C473.
TRADEMARKS DENSDECK,FIREGUARD and the GEORGIA-PACIFIC logo are trademarks owned by
GP Georgia-Pacific or licensed to Georgia-Pacific Gypsum LLC.ROOFNAV is a registered mark of FM Global.
Gypsum WARRANTIES,REMEDIES AND TERMS OF SALE For current warranty information for this
product,please go to www.gpgypsum.com and select the product for warranty information.All sales
U.S.A. Georgia-Pacific Gypsum LLC of this product by Georgia-Pacific are subject to our Terms of Sale available at www.gpgypsum.com.
Georgia-Pacific Gypsum II LLC UPDATES AND CURRENT INFORMATION The information in this document may change without
Canada Georgia-Pacific Canada LP notice.Visit our website at www.gpgypsum.com for updates and current information.
SALES INFORMATION AND ORDER PLACEMENT CAUTION For product fire,safety and use information,go to www.buildgp.com/safetyinfo
U.S.A. West: 1-800-824-7503 or call 1-800-225-6119.
Midwest: 1-800-876-4746 FIRE SAFETY CAUTION Passing a fire test in a controlled laboratory setting and/or certifying or
South Cenral: 1-800-327-2344Slabeling a product as having a one-hour,two-hour,or any other fire resistance or protection rating
Northeast: 1-800-327-2344 and,therefore,as acceptable for use in certain fire rated assemblies/systems,does not mean that
Northeast: 1-800-947-4497 either a particular assembly/system incorporating the product,or any given piece of the product
CANADA Canada Toll Free 1-800-387-6823 itself,will necessarily provide one-hour fire resistance,two-hour fire resistance,or any other
Quebec Toll Free.1-800-361-0486 specified fire resistance or protection in an actual fire.In the event of an actual fire,you should
TECHNICAL INFORMATION immediately take any and all actions necessary for your safety and the safety of others without
U.S.A.and Canada:1-800-225-6119,www.gpgypsum.com regard for any fire rating of any product or assembly/system.
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