Metal -plastic windows must correspond to the maximum interior and exterior of the building for which they are selected. And immediately I want to say that such a correspondence is not difficult to provide at all. Moreover, the metal -plastic windows do not necessarily be what many inhabitants are used to seeing them. The shape of the windows has long ceased to be extremely strict and rectangular, and the color is white. There are a lot of different methods that will allow the windows to give the original view. And one of these options is the use of SHROCS. SPROS is a binding inside a double -glazed window or on its surface. You can distinguish springs constructive and decorative depending on what functions they perform. Most often, metal -plastic windows are equipped with decorative elements, but when they are used, some nuances should be noted. First of all, it is necessary to note the variety and features. The same material as the window frame is used for the production of SPRs, since they, in fact, are its continuation. They divide the frame into small areas, each of which is equipped with a separate double -glazed window. It is advisable to use such SPRs in the windows of metal -plastic large sizes. Decorative springs on windows are usually installed with aesthetic purposes. There are different types of them, including inter -stackets, Venetian or false translates and overhead. A large number of SPROS, according to experts, reduces the thermal insulation of windows. But this applies only to the elements of constructive and inter -articular. It turns out that different windows can be equipped with different options by SPROS, which have their advantages and disadvantages.