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

  • Brightly Software, XOi Partner for New HVAC Data Solution

    Siemens company Brightly Software recently announced a partnership with data intelligence company XOi to integrate real-time HVAC system data into Brightly’s Asset Essentials CMMS, according to a news release. The integration will allow facilities more insight into HVAC system performance, health, and risk across their operations.

  • Midland ISD Starts Construction on Two New High Schools

    The Midland Independent School District recently announced that it will break ground on two new high schools in Midland, Texas, according to a news release. The district is partnering with Pfluger Architects, Lee Lewis Construction, and Satterfield & Pontikes to create a total of over 1.5 million square feet for 8,400 students in grades 9–12.

  • Photo courtesy of Spiezle Architectural Group, Inc.

    West Melbourne School for Science Completes Expansion Project

    The West Melbourne School for Science, which serves students grades PreK–6 in West Melbourne, Fla., recently completed a 12,450-square-foot elementary school expansion, according to a news release.

  • UCNJ Launches $30M Modernization of Physical Education Center

    The Union College of Union County (UCNJ) in Cranford, N.J., recently broke ground on a new $30-million modernization project for its Physical Education Center (PECK), according to a news release. The college partnered with DIGroup Architecture for the project’s design, transitioning the existing 42,000-square-foot structure into a campus hub for student athletics and campus life.