Case Study: Lessons Learned from Extensive Testing on Lightweight Wood Frame Multi-dwelling Buildings

Two multi-unit buildings in the final stages of construction were tested under a variety of airborne and impact sound isolation conditions. The buildings, an apartment style dorm and a luxury apartment, were both constructed using lightweight wood frames. Testing was done in accordance with the Sound Transmission Class (STC) Standard ASTM E336-14 and the Impact Insulation Class (IIC) Standard ASTM E1007-13b. This paper summarizes and discusses the results of these tests. Conclusions are drawn regarding sound isolation variances between outlet treatment in wood stud walls, impact isolation variances with resiliently backed vinyl tiles, and how different treatments can affect whether heavy impacts are or are not mitigated.