GOLD BOND® BRAND GRIDSTONE® GYPSUM CEILING PANELS National Gypsum Company Technical Information: Internet Home Page: Gold Bond® BRAND Gridstone® Gypsum Ceiling Panels are prefinished ceiling panels with a noncombustible, Fire- Shield G gypsum core. The vinyl laminate combines high light reflectance with easy BASIC USES Gridstone panels are ideal for interior and unexposed exte- rior ceiling applications such as soffits, parking garages, Gridstone panels are accepted service and food processing Gridstone panels install easily in standard exposed grid systems. tible gypsum core assures fire fire rating achievable depend- white vinyl laminate elimi- nates additional finishing. • The product shall be main- humidity prior to, during and after installation. GREENGUARD CERTIFIED Gridstone Gypsum Ceiling Children fcSchooh Indoor Air Quality Certified in areas exposed to extreme or continuous moisture, such as saunas, steam rooms, gang showers and indoor pool tect grid panels from direct exposure to weather, water and continuous high humid- should water be in contact with the back of the panels. • Overlaid insulation may cause excessive panel deflection where high humidity is likely • Extreme lighting conditions may distort texture appearance. solvents (such as ketones), harsh abrasive cleaners or steel wool are not recom- mended. These materials may cause dulling, discoloration, softening and other permanent damage to the vinyl surface. TECHNICAL DATA PHYSICAL PROPERTIES Thickness, nomina Width, nomina Length, standard Weight, Ibs./sq.ft., nomina 2 mil white stipple vinyl laminate Surface Burning Characteristics Sound Attenuation (per ASTM E 1414) Ceiling Attenuation Class (CAC) Light Reflectance APPLICABLE STANDARDS AND REFERENCES ASTM E 1264, Type XX, Patterns E, C National Gypsum Company, Gypsum Construction Guide (Continued next page) Submittal Approvals: (Stamps or Signatures)

FIRE RATINGS BY TYPE & SIZE Gridstone panels are designed tems or environmental type grids for severe conditions, with grids either 2' by 2' or 2 by 4'. Grid installation should manufacturer's specification. Each panel must be supported Cross ventilation must be pro- vided in unheated or enclosed space above ceiling panels. General: Install Gridstone panels in lay-in suspension systems with edges concealed tightly at borders and penetra- tions so that cut edges are concealed by trim pieces and Cleaning: Common dirt and stains on the vinyl surface can be removed with mild soap water. Use a light...