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Availability of certificates For each component of the window (profile, double-glazed window, fittings, components) there is a separate GOST. Manufacturers of materials and products for completing windows must obtain certificates of conformity for their products.

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.

The design of the double-glazed window and the purpose of the constituent elements The double-glazed window, as a window structure, appeared quite a long time ago, almost 90 years ago. It has become a worthy replacement for double windows, simplifying their arrangement and retaining the main properties. Their technical essence is simple - two sheets of glass, between which there is an insulating gasket that holds them at some distance from each other. The air cavity that has turned out between them creates a certain barrier to the leakage of heat from the inside and the penetration of cold from the outside. At the same time, the transparency of such a system is very high, even higher than that of a traditional double window.

Those. the window manufacturer must have a window conformity certificate, the profile manufacturer must have a certificate of compliance with the requirements of GOST 30673-2013 for the profile, etc.

Plastic can hardly be called an environmentally friendly material, but modern manufacturers have tried to make it as safe as possible for humans. In its manufacture today, components that are harmful to health are not used.

Window profiles are produced according to EN 12608 SR (Europe) and GOST 30673-99 (Russia). According to the main indicators, they are almost identical. The main parameters are the thickness of the walls of the outer contour and internal partitions. According to these indicators, the profile is divided into three types - "A", "B" and "C".

Profile C. The so-called object (object). As a rule, the wall thickness is not standardized, but less than that of profiles A and B. Such structures are installed in unheated rooms. As a rule, the sashes do not open, the design of the windows is monolithic.

To confirm the serious intentions of the company in which you plan to choose PVC windows, you need to get more information: about the range; about the quality of services; payment letter order.

Price The total cost of a window unit depends on the dimensions, configuration, requirements for the design of the structure, the complexity of installation and some other nuances.

The dimensions of double-glazed windows (glass thickness) also affect the final characteristics of the entire structure. Noise protection will be higher if the outer glass is thicker than the others.