All manufacturers of plastic window profiles are concerned about their soundproofing properties. For this purpose, in addition to several chambers, they equip their window systems with rubber seals that ensure tightness and protection against sound waves. But all these measures are meaningless if the double-glazed unit installed in the profile does not protect against noise.
The main source of noise in a city is ground transportation and railroads running through its territory. However, even five years ago, there were significantly fewer cars in cities than there are now, and street noise became several decibels louder. If in numbers the increase in volume from 75 to 80 dB seems insignificant, for the human ear this difference is very significant.
Several ways have now been developed to improve the soundproofing qualities of a window. The easiest way is to increase the amount of glass in the double-glazed unit. Each additional pane is a new barrier to street noise. The chambers between the panes of glass further reduce it. However, if you place several panes of glass of the same thickness and at an equal distance, they resonate under the influence of the sound wave, and the effectiveness of protection decreases. Therefore, other measures have to be taken.
Збільшення товщини скла, особливо зовнішнього, дуже добре підвищує звукоізоляцію. Разом з товщиною збільшується його вага та склу в меншій мірі передаються звукові вібрації. При цьому різниця в товщині зовнішнього і внутрішнього скла повинна бути не менше 30%. Це значить, що якщо всередині встановлено скло 4 мм, то зовні має бути 6 мм. Частота власних коливань у цих стекол розрізняється, тому ймовірність того, що вони будуть резонувати дуже мала
Another way to improve the sound insulation of a double-glazed window is to change the width of the chambers. With each additional millimeter, the air gap provides better protection against the penetration of unwanted sounds. Different widths of the chambers in a double-glazed unit, as well as in the case of glass thickness, prevent resonance.
The application of polymer films or the use of triplex, a safety glass with a layer of special resin, also has a great effect on the sound insulation of the window. Glass becomes heavier and thicker, and a layer of film or resin helps to dampen vibrations caused by sound waves.
Using some of these measures individually or in combination will help you improve the comfort of your home, get rid of extraneous noise that interferes with both work and rest.
