“But we haven’t had a single complaint since it went up.”
The reciprocating chillers, which have been in place since the jail was built in 1998, are air-cooled. Noise emanating into critical areas: screw compressors (on the bottom of the unit) generate mid/hi frequency noise; Up-blast fans (on the top) generate low frequency noise. This is one type of industrial noise pollution that health experts warn can be hazardous to the health of individuals subjected to it on an ongoing basis.
World Fence News defines Acoustifence as a “new defense against outdoor noise pollution.” Commonly employed in industrial usage, private airports, construction sites, mass transit rail lines and even dog kennels, it is now available for residential use.
The Acoustifence is a unique 1/8th- inch thick heavy mineral filled viscoelastic acoustical material available in a standard 6-foot x 30-foot (3mm x 1.83m x 9.14m), although longer lengths and taller heights are available. To suit their needs, jail officials ordered 90 feet of 9-foot tall Acoustifence to wrap around their chillers. Unlike fences or shrubs, Acoustifence performs well at blocking direct sound while reducing reflective sound at the same time.
Considering that the ideal sound-reducing construction is heavy, limp and air tight, the one-lb. per sq. ft. flexible Acoustifence can be an excellent first step in reducing your noise level. Acoustifence has acoustical properties that provide a lab-certified STC (sound transmission classification) of 28. While a 28 dB reduction represents a decrease of 85% to the human ear, this will be very relevant to surrounding objects from which sound will reflect over or around your fence.
This is not the first time a jail has utilized Acoustiblok sound abatement material to resolve a noise problem. in 2010, a Pinellas County, Florida jail installed Acoustiblok “All Weather Sound Panels” to resolve a noise problem caused by sound reverberations and echo in the jail’s concrete videoconferencing room.
“Every noise issue we’re faced with calls for a solution that addresses a host of unique variables,” said
Lahnie Johnson, president and founder of Acoustiblok, Inc.
“We offer a variety of noise reduction products, and the expertise to determine the best approach to resolve every problem.”