Acoustical Performance Wilmington NC

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

Williams Glass & Mirror
(910) 686-6230
7213 Ogden Business Lane
Wilmington, NC
 
Rawls Lifetime Warranty Wndows & Doors
(919) 696-1997
1600 Bittern court
Wilmington, NC
 
Wild Decks
(910) 274-6422
5312 Sun Coast Dr
Wilmington, NC
 
MG Millwork Installations
(910) 367-8398
917 Dickens Dr.
Wilmington, NC
 
Drywall Specialist
(919) 542-5336
Pear Dr.
Pittsboro, NC

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Old Growth Riverwood
(910) 599-7333
1407-B Castle Hayne Road
Wilmington, NC
 
Decorative Concrete Solutons OF Wilmington, INC
(910) 251-8577
1825 Burnett Blvd
Wilmington, NC
 
Glen Robinson & Son Concrete
(910) 233-0305
1005 Echo Drive NE
Leland, NC
 
Metal building systems llc
(910) 762-0506
3011-c north kerr ave
wilmington, NC
 
Casey Services Hvac, Inc.
(919) 556-3338
4900 Purnell Road
Wake Forest, 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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