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056 - Building Acoustics: How Sound Actually Works in Buildings
Building acoustics explained: STC, IIC, and NRC are the three rating systems every architect needs to know. This episode breaks down how sound actually works in buildings and what each rating measures.
STC rates how well walls and floors block airborne sound. IIC rates how well floor assemblies block impact sounds. NRC measures how much sound a material absorbs within a room. We explain why a material can be great at absorbing sound but terrible at blocking it.
You'll also learn why the IBC requires both STC 50 and IIC 50 between dwelling units, how to upgrade a basic wall assembly step by…
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