Seismic Rx Prelude XL - Intermediate Duty is part of the Armstrong Seismic Rx suspension system, ICC-ES evaluated (ESR-1308), for Intermediate Duty (C Category) installations. It comprises a 3600 mm main beam with 1200 mm and 600 mm cross tees (24 mm face). The Seismic Rx approach eliminates stabilizer bars, uses narrow 22 mm wall molding and allows perimeter support wires within 200 mm.

Key features

• Code-compliant seismic solution (ESR-1308)
• Eliminates stabilizer bars
• Uses narrow 22 mm wall molding in place of 50 mm
• Better access to the plenum

Applications

• Seismic ceiling installations
• hospitals and emergency facilities
• nuclear, defence, chemical and transport installations

Specifications

Approval: ICC-ES evaluated (ESR-1308) Armstrong Seismic Rx Suspension System | Test Basis: Full-scale seismic tested at State University of New York, University at Buffalo (shake table and static tests) | Installation Categories: A, B: ASTM C636 basics; C: ASTM E580 recommendations (light-to-moderate seismic activity); D, E, F: ASTM E580 and IBC recommendations (severe seismic activity) | Note: Performance is based on a specific combination of Armstrong components and installation method; substitution of other components is not covered | Load Basis: Load printed in kg/m2 on the seismic page | Face Width: 24 mm | Duty Class: Intermediate Duty (C Category)

Standards: ICC-ES ESR-1308 | ASTM C635 | ASTM C636 | ASTM E580