| 摘要 |
PROBLEM TO BE SOLVED: To improve storage of roof materials and flow workability by respectively forming a recessed part on one of a surface and a back surface of an inorganic molding roughly making a plate shape and a protruded part on the other. SOLUTION: A protruded part is constituted of a reinforcing rib 25 projectively provided in the longitudinal direction on a boundary part of tile constituting parts adjacent to each other in the cross direction on a back surface of a roof material, and a recessed part is constituted of a boundary groove 14 formed in the longitudinal direction on the boundary part of the tile constituting parts adjacent to each other in the cross direction. Thereafter, when two pieces of the roof materials are piled tip, a projected part 27 of the reinforcing rib 25 on the roof material back surface positioned at the upper side makes contact with an upper surface of a groove 14a on the outside of the boundary groove 14 on the roof material surface positioned on the lower side and is piled up. Thereafter, as a part of the reinforcing rib 25 of the roof material on the upper side enters the boundary groove 14 and piling height (h) of the two roof materials becomes smaller than twice thickness (d) of each of the tile constituting parts, and consequently, it is possible to improve storage of the roofing materials and to improve flowing workability.
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