Some time ago, the windows were made of wood, today the main material used in the production of windows is PVC developed using oil and table salt. Polyvinyl chloride windows enjoy a great reputation due to resistance to various climatic conditions, tightness, and a set of other important features. PVC windows are made as follows: polyvinyl chloride with all kinds of components is heated to some temperature, a thick substance is formed, which must be passed through a certain form, and then cool. The cost of PVC windows depends on the components used. There are a very large number of companies planning on these impurities to save. For example, PVC profile with a low percentage of titanium oxide will quickly turn yellow. Positive reviews of PVC profiles are associated with the beneficial qualities obtained in production. Savings of heat in the house are provided by a low level of thermal conductivity of the PVC profile and the use of special seals for blocking the cracks. Correctly installed windows will keep heat. Plus, PVC windows do not require special care and systematic coloring.
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