| 摘要 |
PROBLEM TO BE SOLVED: To provide a waterproof roof tile that solves a problem with a roof tile having a drainer parallel to a flow direction, for preventing rainwater from seeping in through a gap between the roof tiles.SOLUTION: A plain roof tile has an integrally formed overlap part 2 on one side of a roof tile body 1 and an underlap part 3 formed on the other side. A plurality of guiding protrusions 10, 10a, ... is formed in parallel to a flow direction, the guiding protrusion being formed to be long on a rear surface of the overlap part 2, in a diagonal direction from an inner side toward outer and head sides. As a result, rainwater flowing down the rear surface of the overlap part 2 of the adjacent other roof tile is led to an outer edge part of the overlap part 2 through the guiding protrusions 10, 10a, .... Thus, the rainwater is prevented from reaching a part outside of a side edge part of the underlap part 3 underneath.SELECTED DRAWING: Figure 1 |
