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Acoustic glass also called sound proof glass, is a special type of insulating glass which is designed to absorb and therefore reduce external noise. This enables anywhere from a mild to dramatic reduction of outside noise, whether from traffic, construction or a neighbor's dog.
However, even if you do not live next to a major highway, acoustic insulation you can still benefit. You may be in a low traffic neighborhood but have a lot of pedestrian traffic, commercial activity or teenager learning to play the drums! Particularly in modern urban areas, noise pollution is an increasing problem and many people do not even realize it until spending a quiet day in the countryside.
Both Saflex and Trosifol developed sound acoustic products that can increase glass STC by 3-5 Dbs.The special sound proof PVB interlayer can decrease noise and create quiet interior environment.
Acoustic glass often appears similar to standard double glazing. However, the design of sound reduction windows offers several special features to boost their acoustic performance and insulate against outside noise. First, the individual glass panes are thicker and the air cavity between them is bigger. This helps to reduce the resonance of loud noises and make it more difficult for sound to pass through.
Another special feature is filling the glass units with an inert gas like argon or krypton. These gases are more difficult for sound to pass through than normal air. As the sound waves move through the gas, they lose energy and thus decibels of volume. Finally, the entire window must be carefully sealed to eliminate and prevent any spaces or gaps between the wall and frame. Otherwise, this creates problems with both soundproofing, and condensation.
