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Floor and ceiling assemblies between dwelling rooms or dwelling units and between dwelling rooms or dwelling units and public or service areas within the structure in occupancies classified as Group A1, A2, A3, B, E, I, M or R shall have an impact insulation classification (IIC) rating of not less than 50 where laboratory-tested and 45 where field-tested when tested in accordance with ASTM E 492. New laboratory tests for impact insulation class (IIC) of an assembly are not required where the IIC has been established by prior tests.

Related Code Sections

1206.3 Interior Environment, Structure-Borne Sound
the structure shall have an impact insulation class rating of not less than 50, or not less than 45 if field tested, where tested in accordance ...
1207.3 Interior Environment, Structure-Borne Sound
the structure shall have an impact insulation class rating of not less than 50, or not less than 45 if field tested, when tested in accordance ...
807.4 Indoor Environmental Quality and Comfort, Structure-Borne Sounds
the structure in occupancies classified as Group A1, A2, A3, B, E, I, M or R shall have an impact insulation classification (IIC) rating of not less ...
Section AK103 Sound Transmission, Structural-Borne Sound
Floor/ceiling assemblies between dwelling units, or between a dwelling unit and a public or service area within a structure, shall have an impact ...
Section AK103 Sound Transmission, Structural-Borne Sound
Floor/ceiling assemblies between dwelling units, or between a dwelling unit and a public or service area within a structure, shall have an impact ...