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A standard plastic window consists of PVC profile, double-glazed windows and fittings. All three of these elements must have the maximum quality so that the windows themselves can be called quality with confidence. To determine the quality of PVC profile, you must pay attention to the number of chambers in the profile (this element affects the insulating characteristics) and on the walls of the profile, which affect the mechanical properties of windows. The double-glazed window must have good transparency and must also have no distortion. At the same time its width should be more than two sentiments, and the glass unit should consist of at least two chambers. The tightness of the glass determines the quality of the plastic window. But the quality of accessories is determined by the quality of its parts. They must have a corrosion-resistant coating, be strong and reliable in operation. The presence of plastic elements in the fittings indicates that the manufacturer decided to save on quality. Safety and serviceability of accessories are the most important elements. The most famous for its quality is the MACO fittings. The European manufacturer is known in the world market for its products, which have positive reviews.
Quality firms that can offer the best PVC profile are VEKA, Rehau and KBE. Perhaps the window of the "CENTURY" can be called the highest quality. The outer walls of the “CENTURY” profile have a thickness of more than three mm, which affects various technical characteristics. In general, these plastic windows are the most suitable for our country. Plastic is resistant to severe frosts, it does not "break" the hot summer, and it will not burn out in the sun. The company can also offer plastic windows, the quality of which, in principle, is much higher. Inside such a plastic window is reinforced with metal. Of course, these windows have their drawbacks. For example, the weight of one leaf can be more than 60 kilograms. However, the reliability of such windows and quality at the highest level.
Also an important feature is the design. Of course, it rarely affects the technical characteristics, but the quality windows must necessarily have a presentable appearance. Aesthetics is a matter of taste, but according to this criterion, in our opinion, KBE’s windows win. In addition to all of the above, it is worth noting such quality as environmental friendliness. Zinc and calcium compounds, as well as the presence of lead in PVC constructions, are a sign of contradiction with various environmental standards. The safest plastic windows for health are of the European Greenline standard. Also, the international standard DIN ISO 9001- is a confirmation of high quality products. If the plastic windows have a certificate that confirms that the goods are manufactured in accordance with this standard, then they can be acquired without thinking that in a year or two they will have to be changed. It is also worth remembering that even the highest quality windows, which are installed incorrectly, will not be able to perform their basic functions (keeping heat in the room) and can quickly become unusable. For this reason, for installation it is better to use the services of specialists
