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Effects of acoustical ceiling panel type: Vertical sound isolation

Construction Specifier

STC is measured in a laboratory and is used as reference during design. Due to the consistent use of STC 50 for floor-ceiling assemblies in acoustic standards for healthcare, education, and office buildings, the research for this article also uses STC 50 as a goal reference criterion.

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Sound isolation code requirements

Construction Specifier

The influence of the acoustic environment on the overall occupant satisfaction is objectively borne out in an analysis of the 2005 American Housing Survey, which found “the most dramatic impact on residential satisfaction comes from hearing neighbors through the floors, walls, or ceiling.”

IIC 81