The need to restrict outside sound is not only a matter of environmental protection but, principally, of well-being. Noise, in addition to generating pollution, can cause illness.

Studies show that people who are constantly exposed to continuous noise pollution can suffer from such consequences as stress, nervousness, sleeplessness, poor concentration, and cardiovascular ailments.

The sound control ability (Rw value) of insulating glass can be increased with the thicknesss asymmetry of each glass pane or with increasing the air gap as well as with the utilisation of special sound control laimanted glass. The acoustics quality of the frame structure the glass built in is an important factor as well as the professional built in and good closing at the edges.

The best possible Rw value is 52-54 dB at the moment.