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Home / NCIDQ Glossary / noise reduction coefficient

noise reduction coefficient

Updated: October 4, 2018 by Lisa League

Acoustics
The Noise Reduction Coefficient, NRC measures the ability of a material to absorb sound. An NRC value of 0.2 is considered reflective, and a value greater than 0.2 is considered sound absorbing.

NRC is typically used to measure sound absorption for floors, ceilings and wall assemblies.

Read more about acoustics in Building Systems and Construction.

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