| 摘要 |
PROBLEM TO BE SOLVED: To provide a roof structure which has a bellows-like three-dimensionally curved shape, changes an effective flange width by adjusting an expansion width of a mountain shape part and a valley shape part, has a highly fitting strength, and has excellent waterproofness.SOLUTION: The roof structure is formed by laying an external facing material 1 on a skeleton 5. The external facing material has: a first molding part 2 and a second molding part 3 on the side face in the width direction; and at least one upward projection part 4 between the first molding part and the second molding part. The first molding part and the second molding part respectively have internal engagement parts 21, 31 and external engagement parts 22, 32 crossing upper ends. A holding member 6 fixed on the skeleton has a first engaged part 62 and a second engaged part 63 which can be engaged with the internal engagement parts and the external engagement parts. In the holding member, the first engaged part and the second engaged part are respectively engaged with the internal engagement part and the external engagement part of the first molding part of one external facing material. Furthermore, the external engagement part and the internal engagement part of the second molding part of the other external facing material are respectively engaged with the internal engagement part and the external engagement part of the one external facing material in an overlapped state.SELECTED DRAWING: Figure 1 |
