Since I last wrote about sound-control systems (see NFT's August 2000 issue), the Tile Council of America has deleted from the TCA Handbook all floor details relating to sound transmission. However, the 2002 edition of the handbook does present sound-abatement details, including fire ratings, that pertain to wall installations.
Before I describe specific types of sound-control systems for floors, I should mention some of the technical terms used in discussions of sound abatement. Among these are such terms as "STC," "IIC," "FSCT," and "FIIC."