Knauf Stratopanel with Cleaneo® technology enhances indoor air quality while delivering superior acoustic performance. Tested ...
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How to Soundproof a Room or Apartment Affordably and Easilyacoustic foam, or drywall. Noise Reduction Coefficient, or NRC, measures and rates a material's ability to absorb sound. The scale ranges from 0 (absorbs no sound) to 1.0 (absorbs all sound).
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