Seismic Code Compliance for Contractors

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Seismic > Seismic Code Compliance for Contractors

The following ceiling and grid systems were tested to withstand seismic forces in all IBC categories. All ceilings have test details and summaries to support the demonstrated performance and integrity of the system.

Family Name Description
PRELUDE® XL 15/16″ Exposed Tee System
Fire Guard 15/16″ Exposed Tee System
15/16″ Environmental Tee System

SILHOUETTE ® XL 1/4″ Reveal 9/16″ Bolt-Slot System
1/8″ Reveal 9/16″ Bolt-Slot System

SUPRAFINE ™ XL 9/16″ Exposed Tee System
Fire Guard 9/16″ Exposed Tee System

INTERLUDE® XL 9/16″ Dimensional Tee System*

SS PRELUDE PLUS XL 15/16″ Environmental Tee System*

CLEAN ROOM 1-1/2" Clean Room Grid System
15/16" Clean Room Grid System**

SONATA™ 9/16″ Dimensional Tee System*

* Not available in Heavy Duty
**Available in Steel which meets ASTM C635 (Heavy-duty) main beam classification

Leader in seismic testing
Armstrong has partnered with The University at Buffalo to test our products for seismic performance. These tests are performed at the Structural Engineering and Earthquake Simulation Laboratory (SEESL) located in Ketter Hall. SEESL is a key equipment site in a nationwide earthquake engineering collaborator – the National Science Foundation’s George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES). This network allows earthquake engineers and students from different institutions to share resources, collaborate on testing and exploit new computational technologies.


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