A meta-analysis of sound isolation properties of various modular prefabricated wall systems

The current meta-analysis focuses on airborne sound isolation performances for modular prefabricated wall panels. As many properties may be varied in prefabricated wall assemblies, relying only on measurements either on prototypes in a lab or in situ tests would require a significant amount of resources. Understanding the precision and limitations of theoretical evaluation methods is, therefore, a must. A comparison of theoretical predictions with lab and field measurements (as per ASTM E90 or E336) is performed on multilayer systems up to a double wall panel system which incorporates four layers (two panels each composed of two layers). This allows a better appreciation of theoretical predictions of modular prefabricated wall systems.