| 摘要 |
A roof is built of at least two roof elements (A, C). Each has a longitudinal girder on the sides facing each other. The girder is equipped with a tongue (3). When the roof is erected, the tongue works together with an edge (5) on the opposite roof element's girder. The roof elements are locked through the interlocking tongues (3) and edges (5) as well as through a locking disc (11A) mounted under one of the roof elements. When the roof is erected, the disc slides in under the other roof element. When the roof elements are joined (A, C), the tongue of one of the girders serves as a drip edge for moisture (15) that precipitates from the roof. The moisture is collected in a gutter (16) formed by the tongue of the opposite girder, which also has openings to drain the collected moisture. The box shape of each roof element is limited by girders, the roof and the ceiling. The chambers found in the roof elements are filled with expanding plastic foam (P) to obtain great bearing capacity.<IMAGE> |
