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Acoustics and timber
flooring
In multi-storey construction, timber floors along
with all other hard floor surfaces raise potential issues of impact
noise on the lower level or, in the case of units, adjoining
dwellings. The key to improving the performance is through isolating
the floor surface from the sub-structure. This is generally achieved
with the use of an acoustic underlay or pads. Additionally the use
of an acoustically isolated ceiling in the room directly beneath the
hard surfaced floor will further reduce noise transmission.
Figure 11 and 12 detail suitable approaches for improving
acoustic performance for various timber floor
systems.
Depending upon the type of timber floor selected,
the floor could be fixed directly over a suitable underlay. Where a
conventional strip floor is required, the process involves the
acoustic underlay, then a plywood sheet (min 12mm) followed by the
strip flooring – secret nailed.
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