| 摘要 |
PROBLEM TO BE SOLVED: To provide a waterproof pan that does not form a dust accumulation in a clearance between an outer peripheral edge of the waterproof pan and an interior wall surface and a baseboard of a building.SOLUTION: A protrusion 36 for covering a baseboard 3 is provided at an outer peripheral edge of a waterproof pan installed adjacently to a wall surface 2 equipped with the baseboard 3. The protrusion 36 is provided on one-three side surfaces depending on a waterproof pan installation location. Preferably, the protrusion 36 at the outer peripheral edge of the waterproof pan is brought into contact with the wall surface 2; an end 37 of an exterior wall part of the outer peripheral edge is brought into contact with the baseboard 3; and an undersurface of the protrusion 36 is brought into contact with a top surface of the baseboard 3. |
