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'Firestone <br /> TECHNICAL INFORMATION SHEET Firestone Building Products <br /> ISOGARD TM HD Cover Board Coated Glass Facer <br /> Item Description Item Number <br /> ASTM C1289 Type II, Class 4, Grade 1 <br /> 4' x 4' (1.2 m x 1.2 m) W8H8GG0501 (half bundle) <br /> 4'x 8' (1.2 m x 2.4 m) W8H800050H (half bundle) <br /> ASTM C1289 Type II, Class 4, Grade 2 <br /> 4' x 4' (1.2 m x 1.2 m) W8H3000501 (half bundle) 7 <br /> 4' x 8' (1.2 m x 2.4 m) W8H300050H (half bundle) <br /> High Density Foam Core <br /> Meets or exceeds performance requirements and recommendations of ASTM C 1289,Type II,Class 4 <br /> Description: <br /> Firestone ISOGARD HD Cover Board is a half-inch (13 mm) thick polyiso with insulating properties. It has a high density, <br /> closed-cell, polyisocyanurate foam and coated glass facers. Firestone ISOGARD HD Cover Board provides a high <br /> thermal performance when compared to other high density insulations or cover boards. <br /> All Firestone polyisocyanurate insulations use EPA accepted blowing agents. Firestone ISOGARD HD Cover Board with <br /> ISOGARD foam technology incorporates a HCFC-free blowing agent that does not contribute to the depletion of the <br /> ozone layer(ODP-free). <br /> Code Approvals: <br /> FM4470, UL 790, UL Classified <br /> Method of Application: <br /> Insulation shall be neatly fitted to all roof penetrations, projections and nailers. No more insulation shall be installed than <br /> can be covered with membrane and completed before the end of each day's work or before the onset of inclement <br /> weather. <br /> Firestone ISOGARD HD Cover Board can be applied over: <br /> • existing roof surfaces <br /> • under fully adhered or mechanically attached Single-Ply <br /> • Modified Bitumen systems applied in Multi-Purpose MB Cold Adhesive and BASEGARDTM SA base sheets with a <br /> torch applied cap or SBS sand backed cap sheet in hot asphalt <br /> ISOGARD HD Cover Board must be installed using Firestone Fasteners and Plates or one of the following Firestone <br /> insulation adhesives: <br /> • I.S.O. Twin PackTM <br /> • I.S.O.StickTM <br /> • Twin Jet <br /> • I.S.O. SprayTM R <br /> • I.S.O. FIXT"" II <br /> Storage: <br /> Keep insulation dry at all times. <br /> Precautions: <br /> • Elevate insulation above the deck or ground. <br /> • Combustible. Refer to Safety Data Sheet(SDS)for more information. <br /> • Do not install over wet, damp or uneven substrates. <br /> • Do NOT install when wet. <br /> • Do NOT torch apply membranes to ISOGARD HD cover boards <br /> • Do NOT use hot asphalt to attach or apply asphalt roofing systems to ISOGARD HD cover boards <br /> Firestone Building Products I Sales:(800)428-4442 I Technical(800)428-4511 I www.firestonebpco.com <br /> TIS 916 4/16/2020 <br /> Page 1 of 2 <br />