Skip to main content
Add as a preferred source on Google

Flooring's Role in Acoustics

  • By Bob Bethel
  • 04/01/17

When it comes to improving in-class student learning and teacher instruction, multiple factors must be considered. One important factor that should not be overlooked is acoustics.

A number of studies show there is a direct correlation between acoustics and improved student performance. In fact, research shows products with high Noise Reduction Coefficients (NRC) and Impact Insulation Classifications (IIC) promote better voice recognition in the classroom. Inappropriate levels of background noise and reverberations can hinder reading and spelling ability, affect behavior and attention and affect concentration and academic performance.

Laboratories typically use two tests to measure the acoustic properties of interior surfaces and finishes: airborne noise reduction and structure-borne noise reduction.

The airborne noise reduction test, ASTM C423-02a, measures a surface’s ability to absorb airborne sounds, which contribute to ambient (background) noise. A floor covering’s measure of effectiveness in absorbing airborne sound is expressed as a Noise Reduction Coefficient (NRC). The greater the NRC, the better that product is at absorbing airborne sounds.

The structure-borne noise reduction test most used for flooring is ASTM E492-09. This test measures the material’s ability to reduce impact sound transmission into the space below. This test is important to perform on flooring materials selected for multilevel school buildings. Flooring products undergoing this test are expressed as a whole number, the Impact Insulation Class (IIC). The higher the rating the greater the sound insulation.

Soft floor covering materials such as carpet or textile composite flooring are excellent solutions for reducing both airborne and structureborne noise. They have the ability to absorb more sound and transmit less sound than other types of surfaces.

This article originally appeared in the issue of .

About the Author

Bob Bethel is the director of Business Development, Education, for J+J Flooring Group. J+J offers an online calculator, floorlifecost.com. Bob can be reached at [email protected] or 800/241-4586.

Featured

  • Dallas ISD Voters Approve $6.2B Bond Package

    Dallas ISD voters have approved a record-setting $6.2-billion bond package that district leaders say will modernize aging campuses, eliminate portable classrooms and reshape learning environments across one of the nation’s largest school systems.

  • Nashville Elementary School Receives LEED Gold Certification

    Goodlettsville Elementary School, part of Metro Nashville Public Schools in Nashville, Tenn., recently achieved LEED Gold Certification from the U.S. Green Building Council (USGBC), according to a news release. The 81,750-square-foot school opened in 2023 and was designed by Goodwyn Mills Cawood (GMC).

  • Spaces4Learning Announces 2026 Product Award Winners

    Spaces4Learning has just announced the winners of the 2026 Product Awards! The award program spotlights outstanding product development achievements of manufacturers and suppliers whose products or services are considered to be particularly noteworthy in their ability to enhance K–12 and higher-education learning environments.

  • UTampa Breaks Ground on STEM Academic Facility

    The University of Tampa in Tampa, Fla., recently broke ground on one of its largest academic facilities ever, according to a news release. The Dickey Science Innovation Center will measure 153,000 square feet and has a scheduled completion date of fall 2028.