This is not a window, but the most important part of modern windows. Double-glazed windows are single-chamber (with two lenses) and two-(three). Climatic conditions, most of the Leningrad region satisfy the single-chamber glazing, but the thickness of them should be from 30 to 50 mm. lready – you may have come to the same conclusion. To maintain the required temperature in a room of 30 mm is enough, but not enough for good sound insulation. Therefore, if your windows face the quiet courtyard, agree on 30-millimeter, if the noisy street – put a thick glass. The best reputation in Russia today have windows Bor Glassworks.

But some smaller firms, which managed to acquire modern equipment for their assembly, use only high quality imported components, so that their products do not get worse, for the same price or slightly more expensive. By the way, and they fulfill orders quickly. What matters is that windows were not going to hand. You doubt that your chosen company has machines? Mentioned at the beginning of the order of the governor of compulsory certification and glass. Check the availability of the required document is not difficult..