Labels:hakham | kite | monitor | sky OCR: Floors Another thing to consi ider is the fire and sound performance The Gypsum Associ iation has complete catalog showing and hour fire rated assembl lies and other standar ds showing sound performance. More and more data is being collected on sound performance for Sound Tr 'ansmission Class (STC) rating as well as Impact Insulation Class (IIC Typically in certified sound lab steel joist floor can have an STC of 50 to 53 and an IIC of 50 to 54. These are the higher types of quality envi ironment ratings that you will see Tests are being done both in the lab and in the field Field testing 15 allowed by code to be about 25% less because of the lack of controlled environment <PREV NEXT> consider Association assemblies certifi
