Benefits and regulations

Less noise pollution with accoustic glass for a better noise insulation!

Double glazing window, especially when acoustic glass is used, helps to insulate against the nuisance caused by outside noise. Laminated acoustic double glazing window can reduce noise levels by up to 35 decibels.

Noise pollution is a real problem for crowded area: air trafic, busy roads... However with double glazing window and acoustic glass you can protect your home from this disturbance and reduce noise pollution!

Noise explained

Sound, a form of energy, is caused by molecules vibrating in a gas, liquid or solid. These vibrations are known as sound waves.

The frequency or pitch of a noise, measured in hertz, is the number of sound waves emitted per second. High pitched sounds are carried by short sound waves and low pitched noises by longer waves.
The actual level or intensity of noise is measured in decibels (dB).

Improving acoustic insulation

Acoustic glass works by reducing a sound wave’s energy. The acoustic insulation properties of a window are measured with the ‘R’ sound reduction index. For example, a window with an R of 20 decibels should reduce a 60 dB outside traffic noise level to 40 dB within the room.

Noise pollution can be in any combination of low, medium or high frequency sounds. Some types of frequencies are easier to block or reduce. High pitched sounds (carried by short sound waves) are easier to absorb but reducing low frequency noise such as traffic can be more difficult. It is important to select the acoustic insulation properties of the window required according to the frequency or pitch of the noise to be blocked, as well as the desired number of decibels to be reduced.

Improving the sound insulation of a double glazing window can be achieved by:
- Having the widest possible cavity between panes of glass
- Using thicker glass
- Differing the thicknesses of the two glass panes used
- Using an efficient insulating window frame
- Using specially laminated acoustic glass
Acoustic glass is a sandwich of two or more sheets of glass, heat or pressure bonded together with one or more acoustic polyvinyl butyral (PVB) interlayers. The interlayers act as a noise damper, weakening the energy of the sound waves as they travel through the glass.

Acoustic glass is a perfect solution for insuring exceptional levels of sound insulation. It not only provides insulation for impact and airborne noise but also maintains the safety and security properties of laminated glass.

Acoustic glass can be functional to both commercial and domestic buildings when applied to products such as windows, patio doors, skylights, conservatories and internal screens and partitions. It can also be incorporated within double glazing window ranging in thickness from 26mm - 40mm, as well as single glazed applications from 6.8mm to 12.8 mm in thickness.






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