Airborne and Impact noises. For extreme cases were there are two brick walls facing each other to fix new joists on. This system is ideally suited for rooms were there is no restriction to the height of new ceiling. Will need at least 16 cm of wall height to apply. New joists are fitted underneath problematic ceiling. Resilient bars are fixed to new joist. This system utilise mineral wool and two layer of acoustic plasterboard 19mm and 12,5mm. All joints will be sealed with acoustic mastic.

Ceiling Height Loss: 170-205mm or 7-9inches
Airborne Sound (improvement db)*: 26db+
Improvement Sound (improvement db)*: 26db+ (Impact sound only transmitted through walls)

*This is an estimated reduction. The result will depend on the existing structure.