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.

Laboratory value Rw according to ISO 140-3 and ISO 717-1

Combison Duo A      32 dB
Combison Duo E      33 dB
Combison Uno A      27 dB
Combison Uno Ds    28 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.