This system is based on 3-chamber profiles. Structural depth of window profiles is: 60 mm (for the frame), 69 mm (for the casement), and for doors 60 mm (both frame and casement). Such profile depths assumed for the casement and frame profiles give a single-plane impression on the outdoor side after closing the window and the impression of flush surfaces – in the case of doors. The profile shape allows for slender and robust construction of windows and doors.
There is the possibility of profile bending, e.g. for frames, casements and lacings which enables making variety of arches and arch structures.
MB-60 system structures are characterised by the low value of heat transfer coefficient U due to thermal spacers and seals. For MB-60 profiles, heat transfer coefficient Uf takes the following values: from 2.0 W/m2K – for windows and from 2.30 W/m2K – for doors.