Owner's manual

EFCO 2012 Page 60
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions
1. At large spans or in high load areas, internal steel reinforcement may be necessary. Reinforcement steel requirements will vary from job to job. Please refer-
ence the approved final shop drawings for steel reinforcement requirements.
2. When steel reinforcement is factory installed into the mullions, fasteners will be used to prevent damage or slippage of the steel during shipment.
Section 16 - Reinforcement