MB-MT50N. High-performance mullion and transom wall.

The MB-MT50N system is a lightweight mullion and transom façade solution designed for curtain walls, glazed roofs, skylights, and complex spatial structures, optimized for sustainability under the Cradle to Cradle Certification® guidelines. It features a 50 mm construction width and is compliant with the EN 13830:2005 standard.

Key Features:

- Thermal Performance: Available in standard and SI versions with innovative insulators (ABS/TPE for standard, PET/PE for SI). The SI version achieves a minimum Uf value of 0.55 W/(m²K) and has A+ certification from the Passive House Institute.

- Structural Flexibility: Mullion depths range from 50 to 250 mm, and two-row transoms offer significant design freedom. Supports insulating glass thicknesses of 20–64 mm.

- High Resistance: Excellent watertightness (RE 1950 Pa), airtightness (AE 1950 Pa), and wind load resistance (up to 3000 Pa).

- Installation Efficiency: Features like an open central socket, three-stage cascading drainage, and simplified screw assembly minimize on-site complexity. The design also allows for various assembly methods, including classic, ladder, and modular installations.

- Enhanced Functionality: Compatible with ALUPROF’s operable elements, such as windows and lift-slide doors, and integrates easily with roof window systems.

This system combines superior thermal insulation and structural durability with user-friendly assembly features, supporting complex architectural designs while maximizing energy efficiency and simplifying installation.