MB-MT50N

The MB-SR50N is a mullion and transom system intended for the construction of lightweight suspended and infill curtain walls, glazed roofs, skylights and other spatial structures. The design is rooted in the Cradle to Cradle Certification® guidelines corresponding to the requirements for sustainable development and the circular economy concept. It has been optimised in terms of the profiles, profile durability and accessories and it features solutions which simplify on-site installation. It provides a construction width of 50 mm and the advantages of ALUPROF’s other mullion and transom systems, which frequently offer greater deign possibilities and better technological performance. Curtain walls produced using this system are covered by the harmonised EN 13830:2005 (PN-EN 13830:2005) European standard.

The MB-MT50N is available in two thermal versions fitted with innovative insulators. The standard version features an ABS/TPE insulator and the SI version is equipped with a PET/PE insulator, which makes it possible to obtain a very low thermal transmission for the façade. The minimum Uf value of 0.55 W/(m2K) is testimony to the fact that the MB-MT50N meets the certification requirements of the Passive House Institute in Darmstadt. One of the structure’s most distinctive features is the additional section under the gasket site in the mullion profiles and the two series of mullion profiles, which provide the potential for using what is known as two-row transoms. This means that the system provides designers with plenty of freedom, making it possible to create façades with complex structures, while the efficient cascade drainage system guarantees their problem-free use.

As far as functionality is concerned, the MB-MT50N is also highly flexible when it comes to the use of operable elements based on ALUPROF’s classic window and door systems, lift and slide solutions and systems designed solely for façades, such as tilt or tilt and slide windows, not to mention roof windows.

Functions and aesthetics:

• a range of mullions and transoms meeting the highest static requirements while maximising economy (profiles and partition thicknesses). The profiles are available in the following depths: mullions from 50 to 250 mm; row 1 transoms from 20 to 254.5 mm; row 2 transoms from 85 to 175 mm
• insulating glass with a thickness of 20 to 64 mm can be used
• high thermal performance in both the SI and standard versions
• excellent watertightness and wind load resistance
• the socket of the central mullion and transom is open, permitting assembly by screwing without additional drilling
• the width of the central socket is reduced, providing an increased displacement compensation capability
• a three-stage, cascading drainage system for every type of mullion-to-transom and transom-to-transom connection
• the shape of the water channel facilitates the installation of drainage components and connectors from the front of the mullion
• the innovative SI insulator, featuring a hard core provides a more secure screw installation, easier processing and damage-free transportation
• the new shape of the half-mullion simplifies the assembly from two parts. It features a new sealing system and the possibly of ladder installation
• standardised installation screws with torx sockets simplify installation and provide secure attachment
• internal gaskets with a customised shape and corners tailored to them provide high thermal performance
• available as a quick-action coupling system for mullion-transom connection which is suitable for glass with a maximum weight of 300 kg
• various kinds of façade assembly; classic mullion and transom assembly, ladder installation and rapid modular assembly are all possible
• the system is designed for maximum simplicity and the automated processing of individual profiles and accessories