CEILING STRUCTURE

To provide a versatile ceiling structure capable of improving the floor impact sound insulation performance.SOLUTION: Disclosed ceiling structure 4 includes; a slab bottom; a ceiling board disposed at the lower side of the slab bottom; a porous fiber sound absorber (non-woven 15) with a density of 8...

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Bibliographische Detailangaben
Hauptverfasser: KUROKI TAKU, OWAKI MASANAO
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a versatile ceiling structure capable of improving the floor impact sound insulation performance.SOLUTION: Disclosed ceiling structure 4 includes; a slab bottom; a ceiling board disposed at the lower side of the slab bottom; a porous fiber sound absorber (non-woven 15) with a density of 8-16 kg/m, which is disposed in the attic space 8 between the slab bottom 41a and the upper surface 47a of the ceiling board 47; and an air circulation space communicating between the attic space 8 and the floor space.SELECTED DRAWING: Figure 1 【課題】床衝撃音遮断性能を向上できる汎用性の高い天井構造を提供する。【解決手段】本発明に係る天井構造4は、スラブ下面と、スラブ下面の下側に配置された天井板と、スラブ下面41aと天井板47の上面47aとの間の天井裏空間8に設置された密度8kg/m3〜密度16kg/m3の多孔質繊維吸音材(不織布15)と、天井裏空間8と床上空間とを流通させる空気流通空間とを備えたことを特徴とする。【選択図】図1