Fire rated wall partitions of EI 120 - MB-118EI
Fire rated wall partitions of EI 120
The MB-118 EI fire rated walls are used to make fire partitions with fire resistance class of EI 120. The system is classified as non-fire spreading (NRO). It’s design & construction is such that, it provides a technical connection with the MB-78EI door, which means a number of common components (such as glazing beads, cooling inserts, expanding tapes, seals and most accessories) and also similar to the basic system, production and installation technology.
The MB-118EI system has been developed on the basis of a five chamber insulated aluminium profile, with a front to back depth of 118 mm. The inner chamber profiles, as well as insulating space between them, are filled with fire insulation elements. On the outer surfaces there are expanding tapes which are additionally mounted, and the whole structure is completed by steel accessories components, joining both sides of the profiles.
The MB-118EI system can accommodate glazing units, panels or other similar glazing substrates of a thickness 31-35 mm or 48- 84mm. Thanks to its symmetrical composition, the structures that are made of it remain fire resistant in EI 120 class, both exposed to fire from the outside and the inside.
An important feature affecting the functionality of the division of these partitions is the possibility to install the MB-78EI doors.
As regards the internal and external walls the MB-118EI system holds an ITB’s Technical Approval No. AT-15-9186/2013.
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.