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Testing Method: JIS A 1418-1 & 2:2000 (
Acoustics -- Measurement of floor impact sound insulation of buildings -- Part 1:
Method using standard light impact source;
Acoustics -- Measurement of floor impact sound insulation of buildings -- Part 2:
Method using standard heavy impact sources)
Test Materials: Sky Garden GR-SP (180mm Roof Soil™)
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Sound efficiency is based 1 to 6 sound levels as set out by JIS A 1419-2:2000
(Acoustics -- Rating of sound insulation in buildings and of building elements
-- Part 2: Floor impact sound insulation). Based on this standard, it can be
concluded that the sound efficiency of the Sky Garden Intensive Green Roof System
is very high and absorbs the sound of walking, rain, etc.
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