Warm is called glazing balconies using metal -plastic structures. It is this material with the use of high -quality seals and, at least double, or even triple glasses, will make the room suitable for comfortable use even harsh winter. Given the height and area of sections, various ways of opening windows are used. In addition to the standard, rotary-oxide, a sliding option is also possible. The only nuance is the need to provide additional ventilation in order to prevent condensate due to temperature difference.