Sound AbsorptionAlpha wWeighted sound absorption coefficient (αw) Equivalent absorption area (AT)The sound absorption property of discrete objects such as islands or baffles is quantified by the equivalent sound absorption area AT expressed as m2 per object Absorption classesαw values compared to reference curves NRCNoise Reduction Coefficient |
Sound InsulationRoom to room insulationHow to interpret the Dnfw value Direct sound insulationHow to interpret the Rw value Influence of sound absorption on room to room sound insulationThere is a strong synergy between sound absorption and the room to room sound insulation experienced in practice Rockfon dB assortmentThe Rockfon dB range has been designed to block sound from passing through the ceiling and as such contributes to both high room-to-room and direct sound insulation
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