Acoustical Performance Concord NC

To understand why some building spaces are acoustically better than others--and specifically how masonry in Concord can be used to limit or enhance sound transmission--designers must first understand how sound is transmitted from one building space to another.

Wayne Brothers Inc
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(704) 779-8000
98 Franklin Ave NW
Concord, NC
 
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2250 China Grove Road
Kannapolis, NC
 
Garage Door Guys
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1464 Tygress Dr
Kannapolis, NC
 
Hall Contracting Corporation
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PO Box 560218
Charlotte, NC
 
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2738 tabitha lane
concord, NC
 
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P.O. Box 996
Concord, NC
 
Larry G Kirkman Construction
(704) 425-8870
1100 China Grove Rd
Kannapolis, NC
 
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100 Cold Water Street
Landis, NC
 
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326 Small Sifford Way
Rockwell, NC
 
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Acoustical Performance

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Source: Masonry Construction
Publication date: October 1, 1995

By Christine A. Subasic

Abstract: To understand why some building spaces are acoustically better than others--and specifically how masonry can be used to limit or enhance sound transmission--designers must first understand how sound is transmitted from one building space to another. When sound strikes a wall, some of it is reflected, some absorbed, and some transmitted, depending on the materials and construction of the wall assembly. Acoustic performance of a wall assembly is characterized by either an STC (sound transmission class) rating or an NRC (noise reduction coefficient) rating. The STC of a wall assembly is a measure of its resistance to sound transmission or its ability to insulate a building space from sound on the opposite side. The NRC characterizes an assembly's ability to absorb sound. Sound absorption is important in determining how sound travels within a building space. In many cases where masonry is used for ease of maintenance and other reasons, acoustical performance also is a concern. Although acoustical characteristics may be overlooked as a particular advantage, the use of masonry walls in restrooms, kitchens, hallways, and other high-noise areas insulates surrounding spaces from unwanted noise.

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