MB-SR60 NY. Mullion-transom wall system
- Evgenii Zabolotko
- Dec 10, 2024
- 1 min read
Updated: Dec 19, 2024

The MB-SR60NY is a mullion and transom curtain wall system designed for enhanced compatibility with American building standards. This versatile system offers both standard and EI60 fire-rated options, which can be seamlessly integrated for a consistent façade appearance. The structure supports aesthetically combining glazed walls with non-transparent panels, such as metal sheets and concrete. Mechanically fixed insulating glass units are secured with glazing bars attached to the support structure.
Key Performance Specifications:
• Structural Performance: Design load of ± 32 psf (ASTM E330-02(10))
• Air Leakage: 6.24 psf (ASTM E283-04(12))
• Water Penetration Resistance: 12 psf, both static (ASTM E331-00(09)) and dynamic (AAMA 501.1-05)
• Movement Testing:
• Vertical inter-story: 1/2” (AAMA 501.7-11)
• Horizontal movement: 1/2” (AAMA 501.4-09)
• Fire Resistance: Non-Bearing Wall Rating of 1 Hour (ANSI/UL 263)
Features and Benefits:
• Design Flexibility: Combines glazed sections with non-transparent panels (metal or concrete) for varied aesthetic options.

• Consistent Appearance: The basic and EI60 fire-rated versions can be integrated without noticeable differences, ensuring a seamless look.
• Reliability: Successfully tested at National Certified Testing Laboratories, meeting stringent U.S. performance and safety standards.
The MB-SR60NY curtain wall system is ideal for American projects needing robust performance, design flexibility, and high fire resistance, making it a strong choice for modern commercial and institutional buildings.