RPG effusor Newsletter - August 2009

RPG Continually Evolving
The RPG monthly effusor Newsletter introduces new products and services and highlights recent projects. If you are receiving this Newsletter for the first time, here is a link to all previous issues online.

The Topakustik absorptive wood system provides both interesting architecture and acoustical performance. The expanded ceiling system offers many patterns, veneer and finish options and suspension systems, which can also accommodate large panel sizes. Panels are not restricted to rectangular formats either. The photo shows a rhomboid option with reveal to give the appearance of triangular panels. This unique design is also currently being installed on the uppermost 4 floors in the world's tallest building- The Burj Dubai.

RPG Specified on Edmond Memorial High School, Oklahoma
The Edmond Memorial High School, Edmond, Oklahoma, auditorium renovation was designed by Gary Madaras of PMK Consultants, Chicago IL. To provide uniform coverage, intelligibility, loudness and intimacy, Madaras specified the Waveform Bicubic and oriented them close to the audience. Madaras indicated “Even the lighting designers love the surfaces of the Bicubics and lit the Bicubics with theatrical lighting for effects." DiffusorBlox were used on the rear wall to increase isolation avoid echoes and maintain the already limited reverberation time all for less cost to the project than a gypsum board wall with fabric wrapped panels. Madaras commented "In a nutshell, the DiffusorBlox and Bicubics allowed me to work around some pretty inhibiting limitations, while achieving better speech intelligibility and uniformity without sacrificing any reverberance.”

RPG Selected for Harrisburg University
RPG provided material for the 125-seat auditorium that is part of a larger Academic Center at Harrisburg University. This auditorium features FlutterFree-T on the lower side walls in a custom stained black walnut. The rear wall is completely clad in Topakustik planks of multiple profiles, also in a custom stained black walnut. Finally, there are Absorbor Panels mounted to the upper side walls. Acoustician: The Sextant Group (Pittsburgh, PA); Architect: Burt Hill (Pittsburgh, PA) and Installer: ML Acri.

RPG at the Tidewater Community College Planetarium
This 90-seat planetarium in Virginia Beach, VA is housed in the new 70,500 square foot Science Building on this campus designed by Burt Hill (Washington, DC). The Planetarium is the center focus of the building and is cutting edge with the highest-resolution laser projection system available today. To avoid focusing from the round room, absorption was used on the upper side walls. RPG’s Topakustik planks with an American Cherry melamine finish were used on the lower wall areas. Architect: Burt Hill (Washington, DC); Installer: Curtis Contracting, Inc. (West Point, VA).

RPG CDM-ISO-DPM Isolation Floor System
The expanded CDM roll out isolation system contains all the ingredients for lightweight wood or concrete floors, using fiber-free polyester mat (CDM-ISO-DPM) and variable load strip (CDM-ISO-DPS) with the widest range of elastomers and peel-n-stick wall mounted perimeter isolation strip (CDM-ISO-STRIP). Installation is simple and easy: no gloves or respirator required.

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Other Important Items to Note
Product Finder
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Project Gallery
We invite you to view our project gallery to see how RPG products can be used in your next design. Take a Look


CATT
We continue to offer assistance with the most comprehensive acoustic modeling and auralization package, CATT-Acoustic v8.x. and provide absorption and scattering modeling coefficients in CATT and EASE formats. New pricing effective 11/1/2007. Prediction and Auralization modules each $3,000. We can help facilitate the building and prediction of your models.

Education
Please join us for our Diffuse Seminars. Dates to be announced. You can view the Agenda pdfs on line. We also invite you to visit our Acoustics Library, Diffuse Reflections, Diffuse Bulletins and Competitive Evaluations.

Test Data
RPG is offering random and directional incidence diffusion, scattering and absorption coefficients for all of its products. Random and directional incidence diffusion coefficients and polar patterns (shown below) indicate the uniformity of diffusion and can be used in CSI specifications and as a metric to compare potential diffusing surfaces. The random incidence absorption coefficient can be used in CSI specifications as a metric of absorption efficiency. The directional and random incidence scattering coefficients can be used in computer modeling programs, but not as a metric of diffusion uniformity.

Copyright 2009, RPG Diffusor Systems, Inc.
651-C Commerce Drive, Upper Marlboro, MD, 20774, Phone: 301-249-0044, Fax: 301-249-3912, E-mail: info@rpginc.com