A sealed design of two or more glasses filled with drained air is called a double -glazed window and has two main functions: sound insulation and thermal insulation. Glazing of buildings with such structures helps to decide to reduce electricity costs in the summer, as the cost of air conditioning is reduced. The normal level of lighting in the room when using double -glazed windows is preserved
SPb double -glazed windows can be carried out using various types of glass, including mirror, tinted, non -infinitive multilayer, sunscreen, transparent polished (float), with decorative and matte films, as well as various decorative layouts. However, the most common double-glazed windows of St. Petersburg from a low-emision K-glass with solid coating or I-glass coating magnetron soft, which have increased energy-saving properties.
K-glass is a high-quality float glass with a transparent hard pyrolytic coating, which consists of many elements, mainly of metals. Such glass is intended primarily to reduce thermal losses through the window, while ensuring solar energy entering the room, but does not pass the internal heat from heating devices and batteries. Outwardly it looks like ordinary, but on a sunny day it has a slightly noticeable smoky color. K-glass is installed both outside and inside the double-glazed window St. Petersburg. If the exterior is external, then the heat stream from the street to the room decreases. The installation of K-glass as an internal retains the internal heat of the room. In any case, K-glass in the glass-pocket St. Petersburg significantly improves thermal insulation indicators of the structure.
I-glass is carried out using electromagnetic spraying. Particles of metals oxides settled on glass, covering it with an uniform heat -saving layer. D-glazing windows of St. Petersburg with I-glass are produced only on specially equipped lines, since the abrasive resistance of this material is much lower than that of K-glass, which creates certain difficulties in storage and transportation. But since this glass is used for the inner layers of the glass -window of St. Petersburg, consumers may not even realize this shortage. On the other hand, according to thermal insulation characteristics, I-glass surpasses its “counterpart” with solid coating.