Insulation Innovation Blog

What is NRC and STC?

Posted by Brittney Fells on Jan 18, 2018 10:06:00 AM

 

The two terms Noise Reduction Coefficient (NRC) and Sound Transmission Class (STC) can be confusing, and both are important to know when choosing soundproofing materials for mechanical piping systems. While one measures the build-up of noise within a space, the other measures the sound transmission between spaces. This blog will cover the difference between the two ratings.

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Topics: Noise Reduction Coefficient, mechanical piping systems, NRC, STC, Noise Control, Sound Transmission Class

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