Total Acoustics | The Ideal Combination of NRC and CAC

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      Acoustical Solutions for Wall-to-Wall Spaces

      For continuous ceilings, choosing a ceiling panel that provides both sound absorption and sound blocking is best to reduce noise and improve speech privacy. Armstrong TOTAL ACOUSTICS ceilings provide the ideal combination of sound absorption and sound blocking in one ceiling panel. With TOTAL ACOUSTICS ceilings, you’ll have the flexibility to meet acoustical needs as the space evolves. 

      Ceilings with high NRC only can absorb sound within the space – but cannot block sound from leaving or entering the space. Ceilings with a CAC of 35+ will help block sound from traveling to adjacent spaces through the plenum, providing improved sound isolation, speech privacy, and design flexibility.

      With three levels of sound absorption and high sound blocking, panels with TOTAL ACOUSTICS performance make it easy to choose the right ceiling for every space, every time. 

      Best:  NRC 0.80+ and CAC 35+  
      Better:  NRC 0.70-0.75 and CAC 35+  
      Good:  NRC 0.60-0.65 and CAC 35+

      Ceiling Attenuation Class (CAC)
      A measure for rating the performance of a ceiling system as a barrier to airborne sound transmission through a common plenum between adjacent closed spaces.
      Noise Reduction Coefficient (NRC)
      A measure for rating the overall sound absorption of a material installed inside a building where sound waves strike surfaces at various angles of incidence.
      Ceiling Attenuation Class (CAC)
      A measure for rating the performance of a ceiling system as a barrier to airborne sound transmission through a common plenum between adjacent closed spaces.
      Noise Reduction Coefficient (NRC)
      A measure for rating the overall sound absorption of a material installed inside a building where sound waves strike surfaces at various angles of incidence.

      Recommended Solutions

      • Best

        TOTAL ACOUSTICS = NRC 0.80+ and CAC 35+

        High traffic spaces or multipurpose spaces where maximum sound absorption and sound blocking are needed to help keep noise levels down and prevent disruption to adjacent spaces.

        CALLA
        CALLA
        Sound Absorption (NRC)
        0.85
        Sound Blocking (CAC)
        Up to 39
        Articulation Class (AC)
        170
        Light Reflectance
        85%
        Recycled Content
        76%
        ULTIMA High NRC
        ULTIMA High NRC
        Sound Absorption (NRC)
        Up to 0.85
        Sound Blocking (CAC)
        35
        Articulation Class (AC)
        170
        Light Reflectance
        Up to 87%
        Recycled Content
        Up to 89%
        LYRA Plant Based (PB) High CAC
        LYRA Plant Based (PB) High CAC
        Sound Absorption (NRC)
        0.95
        Sound Blocking (CAC)
        Up to 44
        Articulation Class (AC)
        200
        Light Reflectance
        88%
        Recycled Content
        60%
        CALLA HEALTH ZONE
        CALLA HEALTH ZONE
        Sound Absorption (NRC)
        0.80
        Sound Blocking (CAC)
        38
        Articulation Class (AC)
        170
        Light Reflectance
        85%
        Recycled Content
        85%

      Tools and Education

      Get a Complimentary Custom Acoustical Report

      Request a complimentary Custom Acoustical Report for your next project and receive a detailed, customized report that will ensure you have the right ceiling to reduce noise, improve speech intelligibility, and/or meet your speech privacy needs.

      Acoustical Design & Solutions Guide

      Our acoustical guide will help you get the acoustics right in any space.

      CEUs for Acoustics

      Learn more about designing for acoustics and earn CEUs with on-demand, rep-hosted, and audio courses.

      Acoustics Academy on Arch Record

      This academy looks at how integration of cutting-edge sound blocking, and noise control elements can play a necessary part in both occupant well-being and sustainable design goals.


      Inspiration


      Resources