Globalwall® CN 122 Rockbardage
Double skin system with an inner structural perforated tray and an external weather steel profile of minimum 0.75mm for good sound insulation.
Composition :
- Hacierba Tray 1.500.90 SR P with a thickness of 0.75mm
- Rocksourdine
- Rockbardage with a thickness of 130mm
- Profile Frequence or Trapeza wirh a thickness of 0.75mm
Performance :
- Sound reduction index Rw(C;Ctr) = 36(-3;-9) dB
- Acoustic absorption αw = 0.85
