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

  • Florida District Completes Construction on New Leadership Institute

    Pinellas County Schools near Tampa, Fla., recently announced that construction is complete on the new Dr. Michael A. Grego Leadership Institute, according to a news release. The district partnered with Rowe Architects for the project’s design and with Skanska for construction services.

  • 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.

  • Philadelphia Middle School Facility Earns LEED Gold Certification

    The Alternative Middle Years (AMY) at James Martin Middle School in Philadelphia, Penn., recently received a LEED Gold certification from the U.S. Green Building Council, according to a news release. The School District of Pennsylvania partnered with KSS Architects on the project.

  • KWK Architects Announces Full Transition to Lawrence Group Branding

    KWK Architects recently announced that it will complete its transition to the Lawrence Group brand effective July 1, according to a news release. The merger marks the end of a three-year strategic integration process that began in March 2023 to unite the firms.