For the ear, a decrease in :
1 dB is almost inaudible ;
3 dB is barely perceptible ;
5 dB is significant ;
10 dB corresponds to a halving of the perceived sound intensity ;
20 dB corresponds to a three-quarter decrease in the perception of sound intensity ;
Acoustic glazing uses glass of varying thicknesses combined with soundproof resin spacers or insulating gases (argon, krypton) to maximise sound absorption.
Acoustic double glazing : A versatile solution for most residential and commercial projects.
Acoustic glazing is rated from AR1 (light attenuation) to AR6 (maximum attenuation). For near-total silence, opt for AR6 glazing (displaying an Rw > 43 dB).
| Rw (C ; Ctr) Weighted Index |
RA Pink Index |
RA,tr Road Index |
AR Class |
| 29 to 31 dB | 29 to 31 dB | 25 to 27 dB | AR1 |
| 32 to 33 dB | 32 to 33 dB | 28 to 29 dB | AR2 |
| 34 to 36 dB | 34 to 36 dB | 30 to 32 dB | AR3 |
| 37 to 40 dB | 37 to 39 dB | 33 to 34 dB | AR4 |
| 41 to 42 dB | 40 to 41 dB | 35 to 36 dB | AR5 |
| ≥ 43 dB | ≥ 42 dB | ≥ 37 dB | AR6 |
|
Rw (C ; Ctr) Weighted Index |
RA Pink Index |
RA,tr Traffic Index |
AR Class |
| 29 to 31 dB | 29 to 31 dB | 25 to 27 dB | AR1 |
| 32 to 33 dB | 32 to 33 dB | 28 to 29 dB | AR2 |
| 34 to 36 dB | 34 to 36 dB | 30 to 32 dB | AR3 |
| 37 to 40 dB | 37 to 39 dB | 33 to 34 dB | AR4 |
| 41 to 42 dB | 40 to 41 dB | 35 to 36 dB | AR5 |
| ≥ 43 dB | ≥ 42 dB | ≥ 37 dB | AR6 |
The acoustic glazing is not just a high-performance technical solution; it is also a real asset to differentiate your projects and provide optimal comfort to your clients. By integrating it into your developments, you meet modern and ever-evolving needs.
For more advice or to choose the ideal solution for your projects, contact our experts or use our online configurator.
Note: Using argon gas in your acoustic glazing provides an additional sound absorption of about 1 dB.