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INSULATION COVER BOARD Georgia-Pacific DensDeckTechnical Service Hotline 1.80OM5,8119 or Roof Board www.densdeck.com Manufacturer Confirm any priming requirements with the membrane manufacturer.When applying Georgia-Pacific Gypsum Georgia-Pacific Canada solvent-based adhesives or primers,allow sufficient time for the solvent to Flash off 133 Peachtree Street 2180 Meadowvale Boulevard,Suite 200 to avoid damage to roofing components. Atlanta,GA 30303 Mississauga,ON L5N 5S3 DensDeck Roof Boards should not be subjected to abnormal or excessive loads or Technical Service Hotline:1-B00-225.6119 foot traffic,such as,but not limited to,use on plaza decks or under steel-wheeled Description equipment that may fracture or damage the panels.Provide suitable roofing system DensDockm Roof Board is an exceptional fire barrier,thermal barrier,coverboard protection when required. and recovery board used in various commercial roofing systems.The DensDeck When using DensDeck Roof Boards for hot-mapped applications,Georgia-Pacific Roof Board design employs fiberglass mats front and back that are mechanically recommends maximum asphalt application temperatures of 425°F(218°C)to 450°F bonded to a high density gypsum care,providing excellent fire resistance and (2321C),Application temperatures above these recommended temperatures may wind uplift properties.The unique construction of DensDeck Roof Board provides adversely affect roof system performance.Consult and follow the roofing system superior flute spanning that stiffens and provides increased foot traffic resistance manufacturers specifications for full mopping applications and temperature to the roof deck.Additionally,DensDeck Roof Board has been shown to withstand requirements. delamination,deterioration and job-site damage far more effectively than roofing Conditions beyond the control of Georgia-Pacific,such as weather conditions,dew, membrane substrates such as paperfaced gypsum board,fiberboard and perlite leaks,application temperatures and techniques may cause adverse effects with insulation.DensDeck Roof Board has scored a 10,the highest level of performance roofing systems. for mold resistance per the AS€M D3273 test method. Moisture Management Primary Uses DensDeck Roof Boards,like other components used in roofing systems,must Roof system manufacturers and designers have found DensDeck Roof Board to be be protected from exposure to moisture before,during and after installation. compatible with many types of roofing systems,including:built-up,modified bitumen, single ply,metal systems,wood shingly and shake,tile,slate,as well as a recovery Remove the plastic packaging from all DensDeck Roof Board immediately upon receipt board and ovedayment protection board for polyisocyanurate and polystyrene insulation, of delivery.roisturr remove the plastic packaging may result in entrapment of can- board DensDeck Roof Board can also be used as a form board for poured gypsum concrete densation or moisture.DensDeck Roof Board stored outside must be stared level and deck in roof applications as well as a substrate for spray foam roofing systems.1/2" off the ground and protected by a breathable waterproof covering.Provide means for air (12.7 mm)and 5/8"(15.9 mm)DensDeck Roof Board may also be used in vertical circulation around and under stored bundles of DensDeck Roof Board,DensDeck Roof applications as a backer board or liner for the roof side of parapet walls. Board must be covered the same day as installed, Some membrane manufacturers have hot mop asphalt or torch applications directly Avoid application of DensDeck Roof Boards during rain,heavy fog and any other to DensDeck Roof Board without using a primer or base sheet.Consult with the conditions that may deposit moisture on the surface,and avoid the overuse of system manufacturer for their recommendations with this application.DensDeck non-vented,direct-fired heaters during winter months.When roofing systems are Roof Board is the preferred substrate for vapor retarders. installed on new 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 Standards and Code Approvals to limit the migration of water from the concrete into the roof assembly.Always DensDeck Roof Boards are manufactured to meet ASTM C1177 and have the consult the roofing system manufacturer or design authority for specific instructions following approvals: for applying other products to DensDeck Roof Boards. •Florida Product Approved Moisture vapor movement by convection must be eliminated,and the flow of water •Miami-Dade County,Product Control Approved by gravity through imperfections in the roof system must be controlled.After a leak Recommendations and Limitations has occurred,no condensation on the upper surface of the system should be tolerated, DensDeck Roof Boards are manufactured to act with a properly designed roof system and the water introduced by the leak must be dissipated to the building interior in a following good roofing practices.The actual use of DensDeck Roof Board as a roofing minimum amount of time. component in any system or assembly is the responsibility of the roofing system's Although DensDeck Roof Boards are engineered with fiberglass facings and high density design authority.Consult with the appropriate system manufacturer and/or design gypsum cores,the presence of free moisture can have a detrimental effect on the authority for system and assembly specifications and instructions on applying other performance of the product and the installation of roofing membranes.For example, products to DensDeck Roof Board.Georgia-Pacific does not warrant and is not hot asphalt applications can blister;torched modified bitumen may not properly bond; responsible for any systems or assemblies utilizing DensDeck Roof Board or any and adhesives for single ply membranes may not dry properly.Moisture accumulation component in such systems or assemblies other than DensDeck Roof Board. may also significantly decrease wind uplift and vertical pull resistance in the system or The need for a separator sheet between the DensDeck Roof Board and the roofing assembly.DensDeck Roof Boards containing excessive free moisture content may membrane must be determined by the root membrane manufacturer or roofing need to be evaluated for structural stability to assure wind uplift performance. system designer. Submittal Job Name conrinue&- --- Approvals Contractor Date APPLIED IN ADHESIVE 4 FT X 4 FT MAX BOARD SIZE 1/4"THICKNESS Stamps f Signatures