Nestable Profiled Acoustical Foam With Variable Depth Air Cavity
A The Nestable Profiled Acoustical Foam With Variable Depth Air Cavity shall be the model ProFoam™ as manufactured by RPG® Diffusor Systems, Inc., Upper Marlboro, MD 20774. Tel: 301-249-0044, Fax: 301-249-3912.
B The Nestable Profiled Acoustical Foam With Variable Depth Air Cavity shall be fabricated as specified from either Melaflex™ or Polyflex™.
C The Nestable Profiled Acoustical Foam With Variable Depth Air Cavity, when surface mounted, shall create a variable depth air cavity (VDAC™) to allow most of the foam to be spaced away from the boudary where the particle velocity is zero.
D The Nestable Profiled Acoustical Foam With Variable Depth Air Cavity shall allow additional layers to be stacked upon previous layers to provide additional absorption efficiency at lower frequencies.
E The Nestable Profiled Acoustical Foam With Variable Depth Air Cavity shall contain a plurality of rounded arcs to provide a decorative architectural surface topology.
F Absorption Coefficients and Noise Reduction Coefficient for the product shall be measured by an independent, accredited NVLAP facility according to the test methods as defined by ASTM C 423 and ASTM E 795. Random incidence Absorption Coefficients for the product in a Type A mounting shall be as follows:
| 125Hz | 250Hz | 500Hz | 1000Hz | 2000Hz | 4000Hz | NRC | |
| 2"
ProFoam 1 layer |
0.14 | 0.30 | 1.08 | 1.11 | 0.99 | 1.01 | 1.00 |
| 3"
ProFoam 2 layers |
0.13 | 0.61 | 1.19 | 1.22 | 1.06 | 1.09 | 1.20 |
| 4"
ProFoam 3 layers |
0.26 | 1.07 | 1.21 | 1.36 | 1.17 | 1.14 | 1.20 |
G The Melaflex™ Nestable Profiled Acoustical Foam With Variable Depth Air Cavity is fabricated from non-fibrous, fire resistant, open cell, lightweight (0.6lb.3) BASF melamine foam. It is in full compliance with all National Life Safety Codes for Class A interior use. Melaflex™ has a flame spread of 10 and a smoke development rating of 50 as per ASTM E-84 testing standards. The Polyflex™ Nestable Profiled Acoustical Foam With Variable Depth Air Cavity is fabricated from a UL94 2lb.3 polyester urethane which should only be used in Class B or C spaces.
H The Melaflex™ Nestable Profiled Acoustical Foam With Variable Depth Air Cavity shall be supplied in a white, white flec, or gray flec finish as specified. The Polyflex™ Nestable Profiled Acoustical Foam With Variable Depth Air Cavity shall be supplied in a purple, blue, or charcoal gray finish as specified.
I The material thickness shall be 1" with a panel thickness of 2". The overall dimensions shall be 12"(H) x 12"(W), 24"(H) x 24"(W), or 48"(H) x 24"(W) as specified.
CSI Specifications
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2000, RPG Diffusor Systems, Inc. |