Muntin-Free MB-78EI Walls
Aluprof offers the MB-78EI system-based transparent, fire-rated wall solution, the so-called muntin-free walls. This allows for the construction of internal partitions walls without the visible vertical wall profiles that separate the individual modules of the wall, while preserving their full fire resistance. The joint between the glass panes is only 4 mm and is filled with fireproofing, intumescent material, and with non-inflammable silicone. The silicone is available in three colours (black, grey or white). The partition walls can thus have a height up to 3,6 m with modules’ width up to 1.5 m. Fire tests performed on these partition walls by the Poland’s Building Research Institute (ITB) included the so-called “free-edge model”, so there is no limit on the maximum length of this type of walls.
MB-78EI Muntin-free system brings you virtually unlimited design and construction possibilities of very large internal partition walling. Thanks to the transparent modules, all the constructions fabricated using this system make your interiors optically bigger. Our system also provides security by allowing the arrangement of the building’s fire zones, thus ensuring appropriate conditions for the evacuation of people
- our solution has been designed and then tested at the ITB in two fire-rating classes
- joint width between the modules is only 4 mm
- max wall height is 3,6m
- max. width of a single module is 1.5 m
- unlimited width of single walls,
- constructions have been tested with hardened glass, that are much stronger and more resistant to impact than not-hardened glass
Fire protection and smoke exhaust systems - General information
A wide range of systems offered by Aluprof facilitate a variety of structural elements that are responsible for “fire protection zones” in buildings, and provide the right conditions for evacuation of its occupants. These solutions include both a window wall & door system option, extending to a typical “stick assembly” curtain wall system solution. The fire resistance performance of these solutions, depending on the project requirements, are available in a variety of classes, from as low as EI 15 (15 minutes) up to a an EI class of 120 (2 hours) for vertical assemblies, and achieve a class of REI 20/ RE 30 for roof glazing.
The following solutions, categorised by their common fire retardant properties, are responsible for the safety of a building’s occupants during a fire: MB-78EI internal & external partition walls & doors (classes EI 15 to EI 90), MB-78EI DPA automatic sliding doors (EI 30), MB-118E fire walls (EI 120), MB-SR50 EI and MB-SR50N EI curtain wall (classes EI 15 to EI 60), MB-SR50 EI EFEKT and MB-SR50N EI EFEKT curtain walls (classes EI60), glazed fire roofs (RE 120/ RE 30), MB-45D smoke-tight door & smoke exhaust windows & valves.
An important feature of the Aluprof fire rated solutions is their ability to interface with each other, one system to the next, whilst maintaining the necessary fire resistance. This is demonstrated with the integration of the MB-78EI door into the MB-SR50 EI and MB-SR50N EI curtain wall, enabling the whole structure to achieve a common EI 30 or EI 60 class performance. The same MB-78EI door possibility exists, with implementation into the MB-118EI wall system.