For home theaters, media or game rooms, or any room where noise is an issue, acoustic drop ceiling tiles can help absorb sound and reduce echo while also preventing sound from traveling to adjacent rooms. Here's how to make sense of acoustic ratings and what they mean for noise control in your home.
NRC and CAC Ratings
When evaluating performance in acoustic drop ceiling tiles, you’ll want to reference two general ratings: Noise Reduction Coefficient (NRC) and Ceiling Attenuation Class (CAC). NRC tells you how much sound a ceiling panel will absorb, thereby lessening the noise within a room. CAC rates the tile's efficiency as a barrier to airborne sound transmission – meaning how much sound travels to adjacent rooms. The higher the rating, the better the ceiling is at noise control.