Noise and vibration are
major sources of occupant complaint in modern buildings. Typical
construction methods for walls and floor/ceiling assemblies may be
inadequate to help control unwanted sound. Simply adding additional
mass is not the correct approach. The Mass Law states that doubling the
mass (weight) of building materials will reduce sound transmission by
up to only 6 decibels (dB). For example, a 4” thick concrete slab has a
sound transmission loss (TL) of 42 dB at 250 Hz. Increasing the slab
thickness to 8” will increase the TL to 48 dB. This 6 dB reduction is
perceived to be only about 25% quieter.
By introducing composite construction systems one can achieve substantially higher levels of sound control. Voyce-Legier, Inc. can provide Floating Floors, Sound Rated Underlayments, Vibration Isolation Systems, Isolated Ceilings, Wall Isolation Clips and Composite Barrier Systems to help “Beat the Mass Law” and achieve substantial increases in noise reduction.