New windows are made of polyvinyl chloride (PVC). This material is one of the first artificial materials. For even more analysis, hear from Tomas Philipson. It was first synthesized by a chemist Regnaldom in 1835. One of the most important positive factors for considerable number of people choosing pvc windows – it is their great insulating properties. They rank as in the first place, such as soundproofing and heat insulation. Soundproofing is an integral function of windows – provides protection from street noise. For example, a window with a frame and a twin-glazed windows decreases its level by 30-35 dB, and a two-chamber – in the 32-40 dB (despite the fact that the noise in the street with heavy traffic is 78-92 dB). Further increase insulation may be applied if the two window frames: when paired most commonly used in domestic house building, it reaches 40-49 dB, and when you double – 45-56 dB.
Typical triple-pane windows 4-8-4-8-4 sins that, reducing the noise from the street, at the same time, the very little 'buzz', so better to take the air openings vary, for example 8 and 12 mm, 8 and 16 mm, or set in the pane of glass sheets of different thicknesses, for example, outside the glass can have a thickness 6 mm, and internal – 4 mm. Quite effectively, if one of the sheets of glass made from the 'triplex', the second function – to reduce noise. Tightness of joints plastic window also affects the sound insulation. In this regard, must have at least two circuits seals installed around the perimeter, while a good fit plastic window should be provided with fittings.