Seismic Zone
Indicates Armstrong ceiling systems that meet seismic requirements for CISCA zones 3-4 and UBC zones 0-4.
Seismic Category Indicates Armstrong ceiling systems that meet seismic requirements for categories D, E and F.
Color Availability
Available in color; some stock or ColorReady.
Fire Resistance
Available in fire-resistive options (Fire Guard); tested in specific UL floor/ ceiling or roof/ ceiling construction design assemblies.
Chemical Corrosion Resistance against direct and indirect contact with a wide variety of corrosive agents. PeakForm
Increases strength and stability for improved performance during installation.

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