Acoustiblok Provides Sound Solution to Race Track Noise at Atlanta Motorsports Park Located eight minutes from downtown Dawsonville, GA, Atlanta Motorsports Park (AMP) is a private member country club for motorsports enthusiasts who own a sports car and want a place to drive it fast and legal. Cars and trucks run on AMP’s 2-mile, professionally designed race circuit where the average lap speed is about 124 MPH. Noise levels from these high-revving, fast moving automobiles can range from 50 to 105 decibels, especially since AMP runs racing about 180 days of the year and also holds about 20-30 additional drivers school activities each year. In addition to automobile racing, AMP features three kart tracks, a driving school, rental garages, pit area, clubhouse, tennis courts, pool, and other recreational areas. According to Jeremy Porter, CEO, AMP had a need for a new sound wall. Their previous sound wall system, which included the use of natural hay bales, was deteriorating and was never up to their standards. They wanted a sound barrier that was both modern and sustainable so they examined many options. “Acoustifence had the qualities we were looking for in a modern outdoor acoustical sound barrier fence. We wanted a ‘green’ and ‘sustainable’ sound barrier product because we are an environmentally-conscious organization. Acoustifence has the sound transmission loss (STL) performance we needed plus it’s also ‘green’ in the sense that it has 80 percent recyclable materials in it, and is 100 percent recyclable itself,” said Porter. Acoustifence is a modern day acoustical soundproofing product manufactured by Tampa-based Acoustiblok Inc. It’s an advanced material sound barrier that is placed between a noise source and the noise receiver. Originally designed and used on offshore drilling rigs, the product consists of a thin, unique 1/8th inch, 6' x 30' (3mm x 1.83m x 9.14m) heavy mineral filled, barium free viscoelastic sound deadening material that easily attaches to chain link or wooden fence. Having black anodized brass eyelets every six inches on the top edge and some on the bottom, the material allows easy hanging or attaching to the fence or to just about anything in approximately 30 minutes with two people. Having an effective noise barrier was important to AMP because the motorsports country club prides itself on being environmentally-friendly and a good neighbor to the hundreds of residents who live nearby. “Acoustifence’s environmental properties were one of the deciding factors for us. We thought it was outstanding for our needs so we bought and installed enough to surround two-thirds of the perimeter,” he said. Lahnie Johnson is President and Founder of Acoustiblok Inc., “Our Acoustifence product is an economical way to reduce outdoor noise that doesn’t require major construction. Two people with a few small hand tools can install the acoustical barrier in about 30 minutes if a fencing system is already in place," he said. Unlike often tried natural sound barriers such as fences, shrubs or hay bales, the Acoustifence material not only blocks direct sound, but also reduces very low frequency sound from reflecting off it.

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“We’re happy with Acoustifence. It was easy to install and it’s working. It’s also green and sustainable. The customer service was great and so was the shipment time,” Porter said. “Since we’ve had the Acoustifence, the neighbors tell us that they love the new fence. They said they think the Acoustifence works better than our previous sound barrier and they think it is more attractive to look at as well,” he said. Made in the USA, Acoustifence is an easy to use sound deadening acoustical fence. It has a unique characteristic that sets it apart from other non-structural sound barriers when dealing with very low frequencies such as vehicular or even train noise. In frequencies of 50 Hz and below, the heavy limp Acoustifence material actually begins to vibrate from low frequency sound waves. In essence it is transforming these low frequency sound waves into mechanical movement and internal friction energy. Laboratory tests indicate that this transformation process reduces these low frequencies from penetrating the Acoustifence by over 60 percent relative to the human ear. In these low frequencies test results show an NRC (noise reduction coefficient) as high as 0.78 (1.00 being the max). The word “green” refers to environmentally-preferable attributes of a product, service, and/or technology. The 1/8” thick Acoustifence is a unique proprietary formula. It does not contain barium, asbestos, or lead and is UV-resistant and impervious to water and mold. Graffiti, a real consideration in outdoor areas, is easily removed compared to other surfaces. Acoustifence is currently used in commercial, industrial and residential outdoor applications that require a sound mitigation element such as loud generators, pumps, heavy equipment—even barking dogs. Acoustifence material is extremely strong and was engineered to withstand harsh outdoor environments like roadways, highways and construction sites where full exposure to dirt, grease, oil mold, or even being driven over can occur.

### About Acoustiblok – “Quieting the World” Acoustiblok, a NASA spinoff listed company, specializes in resolving noise issues from the miniscule sound vibrations that hinder an electron microscope from focusing, to ear splitting jet engine test facilities. Not only inventing as special needs arise, Acoustiblok also manufactures and markets such innovative products throughout the world. Appropriately, the company’s catchphrase is, “quieting the world.” Primary products include Acoustiblok® viscoelastic polymer based soundproofing material, Acoustifence® outdoor acoustical fence, All Weather Sound Panels®, QuietFiber® insulating material, Quiet-Cloud® industrial sound absorption panels, Acoustiblok WALLCOVER®, and Thermablok® aerogel nanotechnology thermal insulation. Acoustiblok products are used in industrial, residential, commercial, and marine sectors worldwide. The company’s products are made and sourced in the United States. Acoustiblok Inc. ships products to more than 60 countries through a network of stocking distributors in the United States, on five continents across the globe and throughout the Mid-East. Acoustiblok products are distributed in the Mid-East by Acoustiblok Mideast. For more information call 813-980-1400 or visit www.acoustiblok.com

Acoustiblok International Headquarters, 6900 Interbay Blvd., Tampa, FL 33616, www.acoustiblok.com, PH 813-980-1400, FAX 813-549-2653