发明名称 Sloping roof with sound attenuating box - has box fitted between roof rafter cover and roof tiles
摘要 <p>Sound attenuating box dampers environmental noise, thus creating a quiet atmosphere e.g. in a living room. Box top surface blends in with roof tiles. Rafters (1) are covered with battens (2) and tile battens (3). One of the tiles (4) has an aperture for pipe section (5) integral with the box which has a curved cover (11). Bottom rim of pipe section (10) is fitted with a slab of thick insulating foil material. This prevents rain from entering bed when pipe section (10) and aperturee in tile.</p>
申请公布号 NL9000176(A) 申请公布日期 1991.08.16
申请号 NL19900000176 申请日期 1990.01.24
申请人 RBB DAKPANNEN B.V. TE MONTFOORT. 发明人
分类号 E04D1/30;E04D13/17;F24F7/02;F24F13/24 主分类号 E04D1/30
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