| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure of an internal corner with excellent watertightness and design and easy to construct. SOLUTION: The structure 1 of the internal corner has a joint treatment member 3 provided at a joint part 17 of the internal corner. The front surface 29 of an exterior wall panel 2a is opposite to a side end face 23 of another exterior wall panel 2b. The joint treatment member 3 comprises a base member 31 and a fitting member 32. The base member 31 has a base part 33, a wall tongue part 35, a back elastic member 341, a front elastic member 342, and a fitting groove part 315, and the fitting member 32 has a surface joint forming part 321 and a tongue part 222. The back side 22 and the front side 29 of the exterior wall panel 2a are brought into intimate contact with the back elastic member 341 and the front elastic member 342, respectively, and the back side 22 of the exterior wall panel 2b is brought into intimate contact with the back elastic member 341. The tongue part 322 fits into the fitting groove part 35 and the surface joint forming part 321 makes intimate contact with the side end face 23. The base member 31, the exterior wall panels 2, and the fitting member 341 together form channels 131 and 132.
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