MB 79N WW

MB-79N WW – Window Wall System

The MB-79N WW Window Wall System is an advanced, high-performing façade solution engineered specifically for the U.S. market, where window walls are increasingly popular in medium- and high-rise construction. Unlike conventional windows, these glass panels are mounted between concrete floor slabs to form continuous, all-glass facades. MB-79N WW enables the creation of large-scale, floor-to-ceiling glass façades using prefabricated window wall modules.

Key features:

• Welded or mechanically joined modules designed for curtain-wall / window wall façades

• Top frame compensation for ± 25.6 mm (±1 in) slab movement

• Starter profiles available in depths 3.27 in to 12.09 in (83 to 307 mm)

• Compatible with MB-79N base system: profiles, thermal breaks, seals, accessories

• Supports fixed windows, operable doors, mullions, expansion joints

• Interior-only installation with clip-in modules

• Reduced labor and installation time

• Seamless, floor-to-ceiling glass appearance

Benefits of MB-79N WW:

• Robust structural design — Adjusts for lateral movement in slab-to-slab construction.

• Façade uniformity — Delivers sleek, uninterrupted glass surfaces with modular consistency.

• Efficient installation — Interior-only access, clip-in modules, and staged building reduce labor and risk.

• Proven performance — Meets high standards for air leakage, water penetration, and dynamic loading.

• Full MB-79N ecosystem — Leverages existing component compatibility (profiles, gaskets, hardware).

• Design flexibility — Supports a range of window and door types and expansion joints.