| 摘要 |
PROBLEM TO BE SOLVED: To provide a roof board material which is simple in shape and positively prevents infiltration of rainwater. SOLUTION: A ridge member 200 forming a ridge wrapper 120 has a ridge slope plate portion 201 which is bent like an angle, and an upward-extending edge 203 and an edge linear recessed member 204 formed therebelow, which are arranged on one side of the ridge slope plate portion 201 in a roof width direction. The ridge member 200 also has a joint member 205L on the other side of the ridge slope plate portion 201. The ridge slope plate portion 201 has a bolt holding member 220 and a fixing long bolt 222 on a lower surface thereof. The connecting member 205L is formed by bending a left edge of the ridge slope plate portion 201 so as to be opened downward, as a downward- facing linear recess. The upward-extending edge 203 is fitted into the connecting member 205L of the ridge member 200 adjacent thereto, and the edge linear recessed member 204 which opens upward is rigidly welded to the ridge slope plate portion 201 by its flat plate portion protruding from the opening.
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