| 摘要 |
PROBLEM TO BE SOLVED: To provide a roof board capable of using roof members for flat roofing, roofing to right and left end parts in a sheathing roof board of a gable roof or to a corner ridge of a ridge and a hip roof, and avoiding monotony. SOLUTION: This roof board is provided with a right and left end roof board 2 comprising a folding part 2e having a turnback piece, a latching turnback 2c, a diagonal fold and a latching piece, and an end folding part having a latching piece 2f. The roof board is provided with a coupling plate comprising a latching turnback 5a, a latching piece 5b, and joining pieces 5c, 5d, a drip joint 6 having a turnback in three sides and a latching piece in one side, comprising an extending part having plural grooves and adjoining pieces 6g, 6h, and laterally roofing boards 4, 4a.
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