To reduce acoustic disruptions and increase speech privacy by creating an acoustic plan and limiting internal noise levels.
The feature’s requirements concern the following elements:
- Acoustic Planning
- Mechanical Equipment Sound Levels
- Mechanical Equipment Sound Levels in Sensitive Rooms
- Best-Practice HVAC Installation
- HVAC Sound Ratings
- Noise Criteria in Schools
- Disruptive Music Limitation
See detailed requirement for Internally generated noise
Eurocoustic presents a wide range of products that combine acoustic absorption and lateral attenuation to improve the quality of listening and intelligibility of the exchanges inside the premises.
Eurocoustic ceilings are a suitable solution for the absorption of sounds, thus reducing the phenomenon of resonance.
The majority of our ceilings are class A, with a maximum absorption level. Hence, our ceilings contribute greatly to the control of the reverberation time.
|ACOUSTIC ABSORPTION CLASS||αw|
|A||0,90 - 0,95 - 1,00|
|B||0,80 - 0,85|
|C||0,60 - 0,65 - 0,70 - 0,75|
|D||0,30 - 0,35 - 0,40 - 0,45 - 0,50 - 0,55|
|E||0,25 - 0,20 - 0,15|
|Unclassified||0,10 - 0,05 - 0,00|
Table B.1 of the NF EN ISO 11654 standard