RPG Continually Evolving
Happy New Year! 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. In this issue, we introduce RPG's new Waveform Woodgrain series and focus on the Waveform Gaussian.

Waveform Gaussian Collage
Optimized curved woodgrain Waveforms offer optimal acoustical diffusion and a handsome woodgrain appearance. In this issue we highlight the Waveform Gaussian. It is a bell shaped surface formed from many thin veneers in a radio frequency press. The Gaussian-D is a constrained layer damped version. In the top photo we show a single Gaussian unit. Next is an application on a ceiling using 6" and 12" deep elements. The photo below that is a modulated wall application in a rehearsal space. The bottom photo shows how the Waveform Gaussian can be incorporated into RPG's Overture Acoustical Shell. When you need optimal scattering and the warm sound and look of wood, the Waveform Gaussian Woodgrain is an ideal choice. For more information please download the Waveform Woodgrain brochure.

Introducing the CDM-ISO-DPM
CDM-ISO-DPM (Distributed Pad Mat) is an improved and cost effective roll out isloation mat to float a concrete or wood floor. Traditional rollout insolation mats consist of unidirectional plastic encapsulated fiberglass pads embedded in a low density fiberglass blanket. The improved system consists of a user-friendly, fiber-free polyester mat with distributed omnidirectional cork-rubber pads, both with recycled content. In addition to the sustainability and fiber-free issues, the new roll out isolation mat offers several elastomer options with resonant frequencies between 6-10 Hz, compared to the fiberglass pads with resonant frequencies between 10 to 14 Hz. Fiberglass pads also cannot be used in shear force conditions (slanted floor), which is not an issue with the DPM pads. A wide variety of elastomers are available for wet or dry installations. Installation is simple and can be done without gloves or loose fiber mask. (1) apply perimeter elastomer strips CDM-MF around the perimeter of the room, (2) roll out the DPM mats, (3) Apply a plywood or MDF layer, (4) for a wet concrete system apply a plastic barrier and (5) apply the mass layer and finish floor. For more information, please download the CDM-ISO-DPM brochure. For more information about the complete floor, wall and ceiling isolation system, please contact Tom Ryan (tryan@rpginc.com), Director of RPG's Noise and Vibration Division.