ACOUSTIC CORRECTION

 

Pyrok surfacing material has a number of natural channels or interstices; sound energy will, when entering these channels, dissipated as heat. Absorption coefficients increase progressively through the frequency range in which most noise problems are encountered.

           
 SOUND ADSORPTION COEFFICIENTS (ISO)

Pyrok thickness tested 25mm

   
Mean Frequency Hz 125 250 500 1000 2000 4000 NRC
Values 0.28 0.34 0.60 0.69 0.61 0.69 0.55
NRC = Noise Reduction Coefficient

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