When we look at office acoustics and acoustic separation between offices & meeting rooms we often see lots of values quoted for acoustic insulation but what do these really mean?
We’re going to look at some terms and concepts such as sound reduction indices, indirect or flanking transmission, background noise and speech privacy to see how these interact and affect the real performance of office partitions on site.
Sound reduction index
Well, one of the most common numbers you’ll see is an Rw value. This stands for weighted sound reduction index. It’s a value for the laboratory measurement of the sound reduction performance of a particular building element. It usually only applies to the building element that has been tested, ie a particular partition or ceiling construction or type. As such its best use is to compare one building element or type of construction with another. Continue reading