Resilient Bars System
Airborne and Impacts Noises. Where ceiling height is a problem. The resilient bar decouples the new ceiling form the joist. The sound gets absorbed as it travels through the flange of the bar. After ceiling has been remove and existing joist are exposed resilient bars are fixed perpendicular to the direction of the joists. This system also utilize mineral wool between the exposed joists and two layers of acoustic plasterboard 19mm and 12,5mm. The perimeter and all joints on 1st layer off board will be sealed with acoustic mastic.
|System||CEILING HEIGHT LOSS||IMPACT PERFORMANCE (SRI) dB||AIRBORNE PERFORMANCE (SRI) dB|
|Resilient Bar System||29-36mm or
1inch (ceiling removed)