|CHPS||EQ14.0 Prereq.: 5 pts;|
EQ14.1: 4 pts.
|GGlobes||188.8.131.52: up to 18 pts.|
|BDCv3||Varies by specialty|
|BDCv4||IEQ Acoustic performance: Prereq; 1-2 pts.|
Concrete masonry walls can be used to isolate noise, block sound transmission and absorb noise. They are successfully used as party walls, hotel separation walls, and highway sound walls.
Sound Transmission Class (STC) measures the sound-blocking capability of an assembly.
|Typical STC ratings of solid grouted medium weight CMU|