Skip to main content
Add as a preferred source on Google

Flooring's Affect on Noise Levels

  • 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. Inappropriate levels of background noise and reverberations can hinder reading 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. These sounds can range from a human voice to mechanical systems. 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. Footsteps and objects dropping on the floor are examples of impact noises. 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 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 contributes to a quieter and more conducive learning environment.

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

  • Harvard Announces Replacement Facility for Native American Program

    Harvard University in Cambridge, Mass., recently announced that construction will begin this spring on a new home for its Native American Program, according to university news. The 6,500-square-foot, all-electric building will stand three stories and serve as the central hub for the Harvard University Native American Program (HUNAP).

  • USC Launches Major AI Initiative After $200M Gift

    The University of Southern California in Los Angeles, Calif., recently announced that it has launched a “transformational” new AI initiative thanks to a $200M gift, according to a news release. The project will leverage AI toward breakthroughs and innovations in subjects like the health sciences, business, security, and the arts.

  • Zurn Elkay Releases 2025 Sustainability Report

    Zurn Elkay Water Solutions recently announced the release of its annual sustainability report, according to a news release. The 2025 report discusses the organization’s efforts to maintain good environmental stewardship and the solutions provided in helping customers meet sustainability goals.

  • Ohio State University Opens 26-Story Hospital

    The Ohio State University Wexner Medical Center recently opened in Columbus, Ohio, standing 26 stories and covering 1.9 million square feet, according to a university news release. The project marks ten years of effort and is the university’s largest single-facility construction project ever.