| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that crack and exfoliation is apt to occur due to changes with age and depending on construction method because sealing material must be coated between plates of right and left siding members after the siding members are bonded, if there are no right and left tongue parts. SOLUTION: In a precut machining method for siding, tongue machining is applied to all of upper, lower, right and left side parts 20, 21, 22, 23 in contact with the other siding member 1a of a siding member 1 which is precut from a siding original plate by matching with designed building, comes into contact with the other siding member 1a on an end side, and is provided in a building part to provide the siding member 1 machined according to the machining method.
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