| 摘要 |
A plurality of support members are aligned in a row. A joint joiner formed in a long tabular shape is laid across the support members. A plurality of roofing boards are installed adjacent to each across the support members. Adjacent roofing boards are arranged so that the side surfaces thereof abut over the upper surface of the joint joiner. At least the roofing boards and the support members are fastened via fasteners, and the joint joiner and the support member are fastened via fasteners. Consequently, the roofing board, the joint joiner, and the support member all simultaneously receive force generated along the horizontal direction of the roofing board, the joint joiner, or the support member. |
