 COMPARATIVE RESULTS OF THE
TEST BETWEEN A SUSPENDED CEILING WITH AND
WITHOUT AKUSTIK+SYLOMERŪ.
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Graphic 1 shows the isolation provided by a single plasterboard
suspended with Akustik + Sylomer® suspensions and the
same ceiling fitted with M6 rod. The blue line represents
the isolation achieved with Akustik + Sylomer® mounts.
As can be seen, there are major differences at low and high
frequencies, offering a difference of:
- 3 dB at 125 Hz
- 6 dB at 250 Hz
- 5 dB at 500 Hz
- 5 dB at 1000Hz
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Akustik
isolation curves
Graphic 1
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| At the same time, comparative tests were conducted with
ceilings with a greater number of plasterboards. Table 1 shows
the results of the RA reduction index: |
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| RA sound isolation index |
Without suspensions (M6 rod) |
With suspensions Akustik+SylomerŪ |
| 1 plasterboard |
67,5 dB |
70,4 dB |
| 2 plasterboards |
69,3 dB |
71,3 dB |
| 3 plasterboards |
70,5 dB |
72,3 dB |
|
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It is clear that the use of Akustik+Sylomer® suspensions
provides far greater airborne isolations, which in some cases
are equivalent to or greater than the use of 2 or 3 plasterboards
with anti-vibration ceiling mounts. |
Gain
in dB A thanks to the use of the Akustik+Sylomer® suspensions
as opposed to a ceiling without elastic suspensions.
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