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Window and door system

MB-70with thermal insulation

MB-70 is a modern aluminum system used to make exterior architectural elements that require thermal and acoustic insulation, e.g. various types of windows, doors, vestibules, display windows, and spatial structures.

The system profiles have a three-chamber structure. The structural depth of the window sections is: 70 mm (frame), 79 mm (casement), and the door is 70 mm and 70 mm respectively. Such adopted depths of the leaf and frame sections give the effect of one plane on the outside when closed – in the case of a window, and the effect of flush surfaces of sashes and frame – in the case of doors. The shape of the profiles allows for slender and durable window and door structures.

The MB-70 system is characterized by a sensationally low value of the U heat transfer coefficient thanks to the use of special thermal breaks and gaskets. This is of great importance in the era of growing requirements in the field of energy management and environmental protection. The Uf coefficient for the MB-70 system structure, depending on the profiles and accessories used, ranges from 1.5 to 2.39 W / (m2K). The system uses profiled omega-shaped thermal breaks, 34 mm wide (windows) and 24 mm wide (doors), made of polyamide reinforced with glass fiber. The offered shape of the spacers increases the stiffness of the profiles in relation to flat spacers and facilitates the drainage of sections, thus ensuring proper thermal insulation in all weather conditions. The thermal breaks used in the windows additionally have a seal at the interface between the section and the spacer, as well as protrusions dividing the chamber between the internal and external aluminum sections into three parts. Tightness is ensured by the use of special gaskets made of two-component EPDM synthetic rubber: solid and cellular, which guarantees resistance to aging during many years of operation and very good thermal insulation. The MB-70 is the first system to use this type of material for the central gasket.

The system allows the use of glass sets with a thickness of 21 mm to 57 mm in window sashes and from 12 mm to 48 mm in fixed windows and door leaves. Such a wide range of filling thicknesses guarantees the possibility of using all typical and non-standard panes.

A large selection of colors in the standard palette enables us to meet the needs of the most demanding customers. Color coatings are made by powder coating or anodizing.

The MB-70 system is the basis for solutions with increased thermal insulation: MB-70 HI, MB-70US HI and a cold-warm facade based on MB-70CW HI windows.

This system also enables the construction of anti-burglary windows and doors in the following classes: RC1 – RC3 and MB-70RC4 windows with the highest burglary resistance in the RC4 class

Thermal insulation Uf

> 1,5 W/(m2K)

Air permeability

class 4


class e1200

Wind load resistance

class C5


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