| 摘要 |
PROBLEM TO BE SOLVED: To largely reduce labor and cost for construction by providing a water cut-off function to a boundary edge, reducing the vertical width thereof for proper fitting, and eliminating color matching between the boundary edge and a water cut-off section. SOLUTION: In a boundary structure of an external facing material 2, a boundary edge 3 is divided into a boundary base section 5 in which a rear vertical piece 5a, a forward projecting side piece 5b, and an engagement section 5c are formed integrally with each other and a boundary cover section 6 in which a forward vertical piece 6a, a rear projecting side piece 6b, and a section to be engaged 6c which is hooked and connected to the engagement section 5c of the base section 5 are formed integrally with each other. The boundary edge extends from the lower end of the forward vertical piece 6a forward K of the external facing material 2 over the entire width, and the extended end portion of the boundary edge is formed integrally with the downwardly projecting water cut-off section 7. COPYRIGHT: (C)2009,JPO&INPIT
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