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

  • Hawaii Elementary School Reopens Following $25M Campus Modernization

    Haʻaheo Elementary School in Hilo, Hawaii, has reopened to students following a three-year, $25-million campus modernization and expansion project that significantly increases the school's instructional space while preserving one of the island's oldest educational institutions, according to local news.

  • Photo courtesy of Kraus-Anderson

    Concordia College Completes Memorial Auditorium Renovations

    Concordia College in Moorhead, Minn., recently completed a $2.5-million renovation project to Memorial Auditorium, a news release reports. The college partnered with Kraus-Anderson for the project’s construction and ICON Architectural Group for its design.

  • California District Opens New Robotics Center

    The Fremont Union High School District (FUHSD) in Cupertino, Calif., recently held a Grand Opening ceremony for a new, district-wide Robotics Center, according to a news release. The 14,500-square-foot facility was designed by Quattrocchi Kwok Architects (QKA); Landmark Constructors served as the builder and Blach Construction as general construction manager.