Vertical airborne sound insulation

The airborne sound insulation of a floor structure can be improved by means of a suspended ceiling system.  Measured sound insulation is the same independent if you measure from the room below to the room above or the other direction. Improvements are always linked to a specific type of floor structure.

Vertical airborne sound insulation values

Improvement of airborne sound insulation measured in laboratory ΔRaccording to ISO 140-3 and ISO 717-1:

Improvement Product

4-5 dB


6-9 dB


7-11 dB

Combison Uno / Combison Duo / Combison dB

12-16 dB

Combison Uno / Combison Duo / Combison dB + Combison XR