| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a building external structure that enables a rainwater drain port of a rain gutter structure to be arranged at an arbitrary position.SOLUTION: In a building external structure, a front wall part 1 includes a base which is extended in a lateral direction S1 along an outer wall T1 of a building body, a plurality of columns 6 which are stood at intervals in the lateral direction S1, and a girder 7 installed in the lateral direction S1 while connected to upper end parts of the columns 6, and the girder 7 and columns 6 are formed of a hollow structure. A water collection port 21 for collecting rainwater, flowing down along a roof part 2, inside is formed on an upper surface of the girder 7. The columns 6 are each formed of a column side face panel 47 which has an opening part 42 for allowing the rainwater gathered at the girder 7 to flow inside and then discharging the rainwater to the outside formed in one side face, can have the one side face attached and detached, and can be divided into a plurality of column side face panel pieces 47a, and the position of the opening part 42 can be set to an arbitrary position in the vertical direction S3 of the column 6.</p> |
