Superial 75 is a three-chamber system for windows and doors with a thermal partition intended for designing windows in residential, public and industrial buildings. The system is ideal for all types of windows and external displays, and solutions such as: tilt and turn, tilt, tilt and slide windows, doors opening inwards and outwards – based on a modified window sash. Thermal breakers, a chamber central gasket and special glazing gaskets make it possible to achieve the Uf coefficient from 1.41 W/m2K. The system offers the possibility of bending profiles, including frames, wings and lacings, which makes it possible to obtain various types of arches and arch structures. The wide range of sections and profiles makes it possible to manufacture a suitably resistant and aesthetic structure in accordance with the customer’s ideas. Windows in the Superial system meet burglary resistance requirements in the RC 3 class.