One-way sound insulation
Installations in the void between the structural soffit and the suspended ceiling, such as piping and ductwork systems, can give rise to noise. In such cases, a sound insulating suspended ceiling system can be used to reduce the noise to acceptable levels in the room below.
One-way sound insulation values
Laboratory value Rw according to ISO 140-3 and ISO 717-1
Product | Laboratory value Rw |
Combison Duo A |
32 dB |
Combison Duo E |
33 dB |
Combison Uno A |
27 dB |
Combison Uno Ds |
28 dB |
Combison db A |
21 dB |
In order to determine the noise level generated by a source in the void, you should ascertain the frequency spectra of the suspended ceiling's sound insulation and the noise source.