| 摘要 |
PROBLEM TO BE SOLVED: To provide a waterproof cap for sucking and exhausting air, which is simple in structure, minimizes venting resistance thereof, and achieves efficient operation. SOLUTION: The waterproof cap for sucking and exhausting air is inserted into a through hole B formed in a wall A of a building, and formed of a main body 1 having a sheathing board 4b formed in a bottom thereof on a rear side, for blocking inflow of rainwater, and a porous plate 2 arranged on a front side of the main body 1. The main body may have a plurality of ribs vertically arranged on an upstream side of the sheathing board at intervals. |
