Aluminium Curtain Wall
The mullion-transom curtain wall
Thanks to the rich offer of profiles, the architects and designers designing enginners may realize even the most bold concepts as regards the aluminium-glass structures.
The system is intended for constructing and creating the light-weight curtain walls of hanging and filling type, as well as roofs, skylights and other structures.
The large number of mullions and transoms available in this system guarantees the best possible aluminium use. The economic profiles were obtained by optimization of the intersection shape and by selecting the optimal wall thickness. At a very high load, all mullions may be additionally reinforced with typical internal aluminium profiles, increasing their resistance. The simple profile processing lowers the workload and eliminates all types of carvings at the side surfaces of the mullions.
Application of the thermal break made of insulating material HPVC and the glazing gaskets made of EPDM allows achieving the appropriate class of thermal insulation for the transparent part, according to DIN 4108 RMG 2.1 to 1. For the basic glazing, a value of the frame coefficient equals to UR=2.21[W/(m2*K)], what allows obtaining the satisfactory values of temperature at the internal surface of the mullion ~10 °C, and limits the effect of the water steam out-dropping on the aluminium elements.
Thanks to the sandwich structure of the lintel-window sill strip, in which the non-flammable materials such as mineral wool and plaster boards are used, the fire resistance classification was obtained depending on the construction of F0.25(EI15)NRO, F0.5(EI45)NRO.
In facades based on the MB-SR50 system, various shapes of cover beads can be applied. The aesthetic variation of this is the so-called horizontal and vertical line, where the horizontal or vertical divisions are emphasized. This system constitutes the base also for other solutions: “semi-structural” wall MB-SR50 EFEKT, the “Industrial” type of façade, structures applied with the overlay method on the supporting wood or steel framework (MB-SR50 A). In all those variants, apart from standard opening elements, it is possible to use skylight windows and tilt windows, basing on the structural wall system MB-SG50.
MB-50SR Skylight window
A skylight window is a part of the MB-SR50 system, and is intended for roof mounting at the inclination angle from 10° to 70° in relation to the horizon, and may be used for making the ventilation hatches.
The supporting aluminium profiles applied in the skylight windows are composed of the three-chamber sections, insulated with polyamide strips, which ensure proper strength, thermal insulation and rigidity. The windows fulfil the technical requirements for 2.1 technical group according to DIN 4108.
The aluminium profiles are shaped in such a way as to ensure the window cross-section as compact as possible, so that the window does not protrude significantly beyond the roof surface.
The skylight window is equipped with an effective drainage-ventilation system connected with the MB-SR50 mullion-transom wall system. The cover bead creates the eaves for rainwater from the outside, and from the inside it is maximally close to the glass panel in order to facilitate the water run-off. Additionally, from the inside, the window is equipped with a special aluminium grove intended for collecting the water from the internal side of the window panel.
In order to ensure high tightness against rainfall, the latest generation EPDM cell gasket is used. The hinges are hidden inside the profiles, owing to which they are not exposed to the influence of atmospheric conditions, what significantly extends their durability.
This window is adjustable to a wide range of closing/locking systems used in the market. These are both mandrel and the chain mechanisms.
The maximum permitted width for this window is equal to 1.50 m, and the maximum height is 2.00 m. The maximum glass surface area cannot exceed 2.10 m2.
It is possible to apply the sets of glass panels of the thickness from 10 to 32 mm.
The window weight is restricted by technical parameters of the applied opening mechanism and cannot exceed 100 kg.
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