31 July 2017

Using plenum barriers to comply with sound isolation requirements

Gary Madaras, PhD, Assoc. AIA, acoustics specialist at Rockfon, offers his expertise on this topic in Construction Specifier’s feature story. Please [click here ] to download a PDF copy for your files.

Acoustic standards, guidelines and building rating systems typically require interior partitions to be full-height, from structural slab to structural slab, and sealed airtight. This requirement, which is primarily done for good sound isolation between enclosed rooms, is too frequently ignored because it can be cost-prohibitive in the minds of some building owners.

Instead, some building owners opt to stop the interior partitions 6 inches above the ceiling level, or worse, stop them at the underside of the ceiling, leaving the plenum above the ceiling to serve as a noise throughway. This compromised approach results in lack of sound privacy and annoying disruptions when people expect to be productive.

While the concept of using lightweight plenum barriers for sound control is not new, recent research and testing of various materials and installation techniques provide a variety of options and more detailed installation instructions.

This seven-page, educational article published in Construction Specifier’s June issue discusses sound blocking between rooms using lightweight plenum barriers, including:

  • Acoustic standards vs. cost savings
  • Effects of noise flanking paths
  • Reducing sound transmission
  • Stone wool plenum barriers
  • Improving sound isolation performance
  • Achieving optimal results

For additional support in optimizing acoustics for your project, please visit, call 800-323-7164 or email Follow Rockfon on LinkedIn to share your comments and to stay on top of the latest product information, industry trends and company news.






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