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Surface impregnation applied lacquer coating or tinting. The thickness of the box in the Norwegian windows typically 98 mm and the thickness of the valves – 68 mm, the opening is carried out in two planes. As already mentioned in the beginning, there are windows, in principle, have no loops. They opened a show frame vertically up and fixing it there. These windows are characteristic for all the houses of old England – narrow, high, often equipped with a multipart binding, they are called “English”. Using the binding of small squares goes back to the days when the glass produced in the form of small plates, which are then cut and inserted into the frame. Typically English windows have single glazing, two rows of frames set is extremely rare.

Plus lifting boxes is that the open frame is not “invade” the space of the room. The downside – the principle of this design, which is essentially the principle of the guillotine. Malfunction in a holding frame mechanism can lead to irreparable consequences. Glazed French style shows a broad panoramic windows to the floor, revealing that it is quite possible to go into the garden or on the terrace. Usually they have a built-in decorative layout inside the glass or split into sections, why are large windows “in the box.” , the window unit in the French style is made without the impost – a rigidly fixed bridge, at which the fixed wing. Most often used shtulpovoe connection or a frame with sliding mechanism.