| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of causing a leak in the roof due to the easy infiltration of water from an overlapped part of tiles since there is no means for preventing the back flow of water at a part exposed when roofing in a conventional pantile. SOLUTION: A recessed part provided with a wall surface exposed when roofing is provided facing the head side is provided, laterally inward from the tail part end.
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