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Distributed by: Georgia-Pacific DensDeck 0 Prime Roof Po-arG with EON I C T" TECHNOLOGY deck roofs when installed according to the conditions DensDeck Prime Roof Boards are excellent fire identified by FM.For more information concerning barriers over combustible and noncombustible roof FM Approvals and FM Class 1 assemblies with decks,including steel decks. DensDeckai Prime Roof Boards,consult FM or see UL 790 Classification.DensDecePrime Roof Boards roofnay.com for specific assemblies. have been classified by Underwriters Laboratories Type s/e"(15.9 mm)DensDeck Prime Roof Boards LLC(UL)for use as a fire barrier over combustible are manufactured to meet the"Type X"requirements and noncombustible decks in accordance with the of ASTM C1177 for increased fire resistance beyond ANSI/UL 790 and ULC CAN-Sl 14 test standard.The regular gypsum board. UL classification includes a comprehensive Class A, UL Fire Resistance Ratings.s/e"(15.9 mm)DensDeck® B,or C rating.For additional information concerning Prime Roof Boards are designated as Type DO by the UL 790 classification,see UL Product IQ at UL and included in assembly designs investigated productiq.ulprospector.com/. by ULfor hourly fire resistance ratings.e/a"(15.9 mm) UL 1256 Classification.DensDeck Prime Roof DensDeck' Prime Roof Boards may also replace any unclassified Boards have also been classified by UL in roof deck constructions for internal(underdeck)fire an assembly in the U U (1L Firree Resistance D recto) mm)gypsum board in exposure in accordance with the ANSI/UL1256 under the prefix"P." Steiner Tunnel test For additional information Flame spread and smoke developed.When tested in 9 concerning the UL1256 classification,consult accordance with ASTM E84,DensDeck'Prime Roof UL Product IQ at productiq.ulprospector.com/. Boards had Flame Spread 0.Smoke Developed 0. FM Class 1 Approvals.DenSDeck'�Prime Roof Boards DensDeck Prime Roof Boards are included In are included in numerous roofing assemblies with a Factory Mutual(FM)Class 1 fire rating.Y4"((6.4 mm) numerous assemblies evaluated by FM or other DensDeck'°Prime Roof Boards have passed testing independent laboratories for wind uplift perfor-nance. under the FM Calorimeter Standard 4450 and have For information concerning such assemblies,please been approved by FM as such for insulated steel visit roofnay.com. PHYSICAL PROPERTIES PROPERTIES 1/4"(6.4 mm) 1/2"02.7 mm) 5!e^(15.9 mm) Thickness,nominal 1"(6.4 mm)t 11,fi'(1.6 mm) 11•"(12-7 mm)±1t,."(0.8 mm) 5Ia"(15.9 mm)±fix'(0.8 rrr Width,standard 4'(1,219 mm)t'1;"(3 iron) 4'(1,219 mm)±11e"(3 mm) 4'(1,219 mm)±11'(3 mm; Lengh,standard 4'(1,219 mm)8 4'(1,219 mm)8 4'(1,219 nun) 8'(2,438 mm)±9,"(6.4 mm) 8'(2,438 mm)t 11,"(6.4 mm) 8'(2.438 mm)±%`(6.4 mrr) Weight nominal,IbJsq ft.(kgim2) 12(5.9) I 20(9.8) 25(12.2) Surfacing Fiberglass mat with Fiberglass mat with Fiberglass mat with non-asphaltic coating non-asphaltic coating non-asphaltic coating Flexural S?rengtM,parallel,Ibf.min.lM 240(178) 280(356) ?100(444) Flute Spanability2 254"(66.7 mm) 5"(127 rim) 8"(203 mm) Permeance3.Penis(n9Pa•S•m2) >30(>1710) >23(>1300) >17(>970) R-Value'.fl2•'F•hrlBTU(m2-IVM .28 .56 .67 Lineal Variation with Change in Temp., inlin'F(mnvmmrc) 8.5 x 105(15.3 x lct 8.5 x 105(15.3 x 10') 8.5 x 105(15.3 x 10 Lineal Variation with Change in Moisture 6.25 x 101 6.25 x 105 6.25 x 105 Water Abscrptior>,%max 5 5 5 Compressive StrengO,psi nominal 900 900 900 Surface Water Absorption,grams,nominaP 1.0 1.0 1.0 Flame Spread.Smoke Developed (ASTM E84,UL 723,CAMULC-S102) 0/0 0/0 0/0 Bending Radius 4'(1,219 mm) 6'(1,829 mm) 8'(2,438 mm) 1 Tested in accordance with ASTM C473 method 8 1 Tested m accordance with ASTM E96(dry cup metnoo). s Specined values per ASTM C1177 `Tested in accordance vl&ASTM E661. 'Tested in accordance o:gth ASTM C518(heat Pow meter) Tested in accordance mth ASTM C473. DENSDECR,EOPI C,and the GEORGIA-PACIFIC logo are trademarks owned by or licensed to Georaa-Pacific Gypsum LLC 02021 GAF 10/21 • COMGN133-PDF gaf.com • 1-877-GAF-ROOF