Reverberation Control Clause Samples

The Reverberation Control clause sets requirements for managing and limiting sound reflections within a space to achieve desired acoustic performance. It typically specifies acceptable reverberation times for different room types and may require the use of specific materials or construction methods, such as acoustic panels or sound-absorbing finishes, to meet these standards. By establishing clear criteria for reverberation, this clause ensures that spaces are suitable for their intended use, such as improving speech intelligibility in classrooms or reducing noise in auditoriums, thereby enhancing occupant comfort and functionality.
Reverberation Control. Private office and conference rooms using suspended acoustical ceilings shall have a noise reduction coefficient (NRC) of not less than 0.65 in accordance with ASTM C-423. Open office using suspended acoustical ceilings shall have an NRC of not less than 0.75. Private offices, conference rooms, and open offices using acoustical cloud or acoustical wall panels with a minimum of 70% coverage shall have an NRC of not less than 0.85.
Reverberation Control. Ceilings in carpeted space shall have a noise reduction coefficient (NRC) of not less than 0.55 in accordance with ASTM C-423. Ceilings in offices, conference rooms, and corridors having resilient flooring shall have an NRC of not less than 0.65.