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

  • Greenheck Receives Sourcewell Cooperative Contract

    Air movement, control, conditioning, and distribution equipment solutions provider Greenheck recently announced that it has been awarded a Sourcewell cooperative purchasing contract, according to a news release. The HVAC Systems contract will allow Greenheck the opportunity to expand opportunities in government procurement and other public agencies in North America.

  • Ancient Resilience: How Indigenous Intelligence Shapes the 4Roots Education Building

    As climate change intensifies, educational spaces must evolve beyond basic sustainability toward true resilience – we must design environments that can adapt, respond, and thrive amid shifting, and intensifying, climate hazards. Drawing on indigenous wisdom and nature-based strategies, integrating resilient design offers a path to create learning environments that are not only functional but deeply in tune with their natural surroundings.

  • Fort Collins to Convert 1980s Office Park into Junior High School

    The Liberty Common School, a charter-public school in Fort Collins, Colo., recently broke ground on an adaptive reuse project that will convert an 1980s-era office park into a 45,000-square-foot junior high school for seventh- and eighth-grade students, according to a news release.

  • University of Connecticut Upgrades Basketball Facility’s AV Systems

    The University of Connecticut recently partnered with Metinteractive to upgrade the AV systems of the Gampel Pavilion basketball facility on its campus in Mansfield, Conn., according to a news release.

Digital Edition