CAC stands for “Ceiling Attenuation Class” – this measurement rates a ceiling structure’s efficiency as a barrier to airborne sound intrusion between two closed rooms, over the speech frequency range. It is an especially significant measure in providing acoustic privacy between adjacent work areas, where sound can penetrate plenum spaces and carry to other spaces. CAC is stated as a minimum value; CAC minimum 25 is acceptable in open plan offices, while a rating of minimum 35 to 40 is preferred for closed offices.
Looking for Ceiling Tiles that carry a high CAC rating?
COASTLINE RECOMMENDED PRODUCTS:
- Fine Fissured High NRC/CAC: CAC=40
- Dune Second Look: CAC=35
- Fine Fissured Fine Look: CAC=35