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

  • Designing School Spaces for A++ Performance

    In recent years, the educational world has gained greater appreciation for the ways a space’s aesthetics, just like its acoustics, can positively impact educational outcomes. Consequently, engineering, designing, and constructing a school environment demands acoustics to be equally an art and a science, requiring architects and designers to see with their ears, while acousticians must hear with their eyes.

  • S4L Launches 2025 Facilities and Construction Brief Survey

    Spaces4Learning recently launched its 2025 Facilities and Construction Brief Survey, which gathers information on K–12 and higher education construction projects nationwide from the previous year. The data we get from you, our readers, forms an industry report offering an overview of current trends in school facilities.

  • Florida Elementary School to Undergo $47M Reconstruction

    The School District of Osceola County in Kissimmee, Fla., recently announced a partnership with construction firm Skanska to reconstruct Reedy Creek Elementary School, according to a news release. The $47-million project will involve the new construction of a 96,000-square-foot academic center, renovating the remaining facilities, a full-site redevelopment, and demolishing portions of the existing school.

  • Texas District Breaks Ground on New Elementary School

    The Splendora Independent School District (SISD) in Splendora, Texas, recently broke ground on a replacement facility for Greenleaf Elementary School, according to a news release. The district partnered with planning, engineering and program management firm Lockwood, Andrews & Newnam, Inc. (LAN) for the project.

Digital Edition