Architectural Precast Concrete
and Steel Stud Building Panels
Fire Resistance Test Report
Test Results

Item Fire Resistance Time (minutes)
2" concrete 34
Air cavity (minimum 3.5") 20
5/8" Type x gypsum 20

The above analysuis indicates that a SlenderWall assembly with 5/8" Typx x gypsum wallboard or equivalent containing no insulation in the cavity would easily meet a one-hour fire resistance requirement.

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