| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a building board which has a hollow part, which enables the hollow part to be utilized as a drain hole and which can prevent rainwater from intruding indoors, and a construction structure for the same.SOLUTION: A building board 1 is formed like an approximately rectangular plate. The building board 1 includes: a plate material 2 that has a plurality of hollow parts 3 provided in such a manner as to penetrate between a pair of opposed edges located in upper and lower positions during construction; a front-side protrusion 41 that is provided in the state of protruding outward within a plate thickness so as to continue into the front side of the pair of adjacent edges including the edge located in lower positions during the construction; and a back-side protrusion 51 that is provided in the state of protruding outward within the plate thickness so as to continue into the back side of the other one pair of adjacent edges.</p> |
