Three-chamber double-glazed windows are rarely used in PVC windows, as they are too thick and heavy. Modern technologies make it possible to achieve comparable indicators of thermal and noise protection in simpler ways.
Disadvantages and the issue of environmental friendliness The frames of plastic windows have one significant drawback - non-repairability. Scratches, scuffs and other surface damage cannot be repaired on plastic. However, plastic is much harder than wood, and it is more difficult to scratch it during operation.
Rubber In terms of performance, rubber seals are not inferior to silicone and ethylpropylene, but at a much more affordable price. True, soft rubber is not very durable and eventually cracks from frost and heat, losing tightness. But it is just as easy to replace as the TPE seals, so there will be no problems with it.
What you need to know when choosing fittings for windows Fittings are the last of the three elements that make up modern windows. This is not only a handle, but also a system of mechanisms that open and close windows in one mode or another. The fittings are made of metal alloys, and you should not save on them. The better the material (such as, for example, alloy steel), the easier the fittings work, the less force must be applied when opening / closing the window, and the longer the service life of the products themselves.
PVC windows have recently appeared on the market, the cavities of which are not filled with air, but are filled with foamed heat insulators - expanded polystyrene, for example, or filled with fiberglass materials. Even with a relatively small number of chambers, their thermal insulation characteristics are much higher than air ones. But for now, their price is also higher.
The most common window profile width levels in Russia are 60 (from 58 to 62 mm) and 70 (from 70 to 76 mm). For most regions of our country, the second option is preferable.
Choosing windows for a private house When answering the question of how to choose windows for a private house or cottage, one cannot fail to note the importance of having energy-saving qualities. To save on heat carriers in the winter season, it is necessary to give preference to multifunctional double-glazed windows. The chambers of such a window are filled with an inert gas. This means that in winter the double-glazed window will keep heat inside the house, and in summer it will not let the street heat into the room. Such a window will cost more than usual, but the costs will justify themselves in the first season.
What you need to know when choosing a double-glazed window Double-glazed window is 70% of the entire window. In a PVC double-glazed window, the glasses are rigidly fixed, there is a special spacer between them so that the windows are strictly parallel to each other. Sometimes a moisture-absorbing material, silica gel, is placed inside.
Choosing plastic windows: video instruction from an expert The video contains recommendations for working with a calculator on the exprof website, which will help you select all the important characteristics of a window structure in our configurator and send an application for production.
On the market you can also find windows with a trapezoidal section of the front part of the frame, the so-called "Dutch" or "Danish". Their installation depth exceeds 100 mm and often they do not require the installation of external slopes, completely blocking the opening. Such windows are more efficient than conventional rectangular ones, but they are also more expensive.