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 Interesting article: The main characteristics of PVC windowsThe main characteristics of PVC windowsWhat would be the window of PVC? How the requirements of consumers, it must meet? On the main characteristics of plastic windows and will be discussed in this article. Insulation Insulation is one of the main functions of the window. Teploizoliruyuschie properties window estimate using the so-called R0pr shown resistance to heat. What is it higher, the better insulation windows. Ordinary glass holds more heat than masonry, but half of concrete and much more than material window boxes and binding (except aluminum); short, this is precisely the main heat losses. Interestingly, for the heated space does not permit single glazing. Thermal insulation of windows increase by two or three sheets of glass with air space between 6-20 mm. The air filling space, a good teploizolyatorom. To ensure a certain distance between the sheets of glass, tentatively set at the perimeter of a special remote box. But that does not impinge moisture in the air space of glass, together with the frame around the perimeter pile special mastic. If instead of air in the glass-packet "upload" more difficult, but, of course, transparent gas - for example inert - the insulation box can be improved by 15-20%. For each commonly used gas - argon, krypton, xenon , Sulfur hexafluoride - has its own optimum width of the gap between sheets of glass. The loss of heat through the glass-packet also reduces injury to the glass of one of nizkoemissionnyh coatings; their share in the "solid" and "soft" (you can find other terms: ki-coating and coating, cover the on-line and off-line). Air It is equally important function of windows is to air in the building. Ventilation is necessary not only to eliminate odors, carbon dioxide, but also for the establishment of normal rezhimavlazhnosti in a room, removing the excess moisture. Air apartments often provided exhaust ventilation throughout the house. Fresh air is affluent in the room through the windows and doors. To that end, each window even in private must be able to skip the air (if there is pressure DR inside and outside the premises ). This property, and called the air. According to rules, it should not exceed 6 kg / m 2 * h at the largest DR = 10 Pa, which is in line with the wind speed on the street 15 km / h. Air can be controlled using a special profile ventilated, perforated or ventilated elastic sealing strips to be installed on top of the window. Soundproofing Another essential function of windows - provide protection from street noise. For example, a window frame with a single and double-glazed windows reduces its level at 30-35 dB, with a double - at 32-40 dB. Further improvement of sound possible using two window case: when coupled, most common in domestic house, it reaches 40-49 dB, but when you double - 45-56 decibels. Model double glass-packet 4-8-4-8-4 sins so that by reducing the street noise, very little "abuzz", so the air is better to take different intervals, such as 8 and 12 mm, 8 and 16 mm, or set of glazing sheets glasses of different thicknesses, for example, external can have a thickness of 8 mm, and internal - 4 mm. Suffice it effectively if one of the pieces of insulating glass unit is made of "triplex", the second function - to reduce noise. Tightness joints plastic window also affects the sound insulation. Therefore, should have at least two sealed gasket installed along the perimeter, with a good attachment laying plastic windows should be secured with the help of hardware. |
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