Double -glazed window is one of the elements of the window, the most important part of it. The double -glazed window often means the window itself, which is not true. So what is a double -glazed window?
Wheel pad — these are several sheets of glass, the same in size and connected by a metal (or plastic) frame around the perimeter. The space between the glasses is sealed. Air chambers are filled with drained air (in rare cases, other gases).
Double -glazed windows are divided into single -chamber and two -chamber. A single -chamber double -glazed window is two glasses with one air chamber between them, and two -chamber — three glasses with two air layers. Single -chamber structures are well known to everyone from old wooden «double -glazed windows», which were almost in any house a few years ago.
A little story
The history of double -glazed windows has been taking its own since 1865, when the first patent was issued. In general, a very similar to the modern design was only different in that in the place of inter -stacol frame seals there were ropes or thick ropes. Having not received the proper excitement, the technology languished until 1934, when German manufacturers to improve railway wagons put industrial production of double -glazed windows on stream. And the current, modern technology with double sealing appeared in the 1970s. In the USSR, the first double-glazed windows appeared in the 1960s, and they were with elastic seals.
Double -glazed windows — which one to choose?
Single -chamber double -glazed windows, as a rule, are used in administrative buildings or under the conditions when the windows over already glazed balconies/loggias. Two -chamber double -glazed windows are much warmer, especially when it comes to energy -saving glasses. It should be remembered that most of the heat from the room leaves the windows.
