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

  • Round Rock ISD Completes New Early College High School

    Round Rock ISD near Austin, Texas, recently announced that construction is complete on a new, 46,500-square-foot campus for Early College High School, according to a news release. The new facility will allow the school’s students and staff to move from portables into a permanent building and increase its enrollment to 500.

  • University of Arizona Approves New Residence Hall

    The Arizona Board of Regents recently approved plans for a new residence hall at the University of Arizona in Tucson, Ariz., according to a news release. The new facility is scheduled to open in fall 2028 and have the capacity for more than 1,200 students, enforcing a new university expectation that all first-year students live on campus.

  • Houston-Area High School Breaks Ground on 117,000SF Multi-Use Facility

    North Shore Senior High School, part of Galena Park ISD in Houston, Texas, recently broke ground on a new multi-use facility for student extracurriculars, according to a news release. The North Shore Multi-Use Facility will include dedicated practice and training space for the school’s athletics and fine arts programs.

  • How a Portable Sink Helped an Art Classroom Run More Smoothly

    Classroom design decisions can have outsized effects on instructional time and safety at schools juggling mismatched infrastructure, strict budgets, and crowded schedules — particularly in the arts. Between spilled paint and dirty brushes, art classes run smoother with a sink in the studio. But many schools don’t have a sink in every art classroom.