| 摘要 |
PROBLEM TO BE SOLVED: To provide an antifouling structure which prevents fouling, particularly fouling caused by water such as rainwater, on a surface of an external wall face plate. SOLUTION: According to the antifouling structure, the external wall face plate 12 has a plurality of horizontal grooves 13 formed therein in the vertical direction, and projections 15 with a decorative surface 15a on a front surface formed between the respective horizontal grooves 13. Each horizontal groove 13 is formed with a deep bottom 16, an upper bottom 17 extending frontward from an upper edge of the deep bottom 16, and a lower bottom 18 extending frontward from a lower edge of the deep bottom 16. The upper bottom 17 is formed as an inclined surface 17a linearly inclined upward from the decorative surface 15a to the deep bottom 16, and an acute portion between a lower edge of the decorative surface 15a and a front edge of the inclined surface 17a serves as a water dripping point 17b. Thus water flowing along the decorative surface 15a is dripped at the water dripping point 17b, and therefore the possibility of infiltration of the water into the horizontal groove 13 is reduced. COPYRIGHT: (C)2008,JPO&INPIT
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