FIELD: building structures, particularly stretched ceilings.
SUBSTANCE: flexible sheet material with thickness of less than 0.5 mm has microscopic relief formed by embossing sheet material and provides increase in sound-absorbing coefficient in comparison with sheet material having no relief.
EFFECT: enhanced sound-absorbing properties.
23 cl, 19 dwg, 9 tbl
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Authors
Dates
2004-10-20—Published
2000-03-20—Filed