1970's, the ubiquitous open-plan office has been with us; first as
a neat method to make a more friendly working environment, and later as
economy measure which allows maximum flexibility in long-term
planning since no permanent walls or partitions are required over major
areas, or over an entire building floor.
Open-plan offices can be made to have an acceptable acoustical work
environment, but like everything else, compromises must be struck. In
particular, three parameters must be designed and controlled in
° The entire
office ceiling must completely
absorb speech sounds.
° Absorptive sound barriers which extend from the
floor to above head
height must be installed between every individual work station.
° The background sound
level (HVAC combined with masking sound) must be broad band and
very narrow loudness range, typically 43 dBA to 46 dBA, with a
spectrum like NC-40.
Selection and physical arrangement of components (ceiling, dividers,
masking sound) is made with he aid of test data derived from special
laboratory tests. See Open-Office
these requirements will produce less than ideal - and often inadequate
results leading to chronic employee complaints and dissatisfaction.
We routinely work with architects, engineers, facilities planners and
department supervisors to achieve these ideal results. Please feel free
See also Open-Office
Last updated 26-Nov-2005.
Web Site by Point &
Click Software, Inc.