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Sound Performance |
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Sound attenuation of Fastwall is exceptionally good. Again
tested under laboratory conditions, solid Fastwall elevations using
12.5mm plasterboard achieved 37dB average SRI. The addition of a Rockwool quilt increased attenuation by 7dB. Single glazed 6.4mm has achieved 30dB and two 6.4mm sheets in double
glazed has achieved 38 dB. Using a combination of 6.4mm and 8mm glass
should provide 42dB.
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Minimum components - Maximum choice
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