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 (0.6lb³) 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 2lb³ 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

Last Updated: 1.1.99 
 
 

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