| 摘要 |
A plastic roof tile is provided to improve the durability and the appearance by mixing waste polypropylene resin with calpet, to manufacture the roof tile accurately by injection-molding, and to construct and fix the roof tile stably by engaging the roof tiles. A plastic roof tile(1) is composed of a planar body(10) arranged in an inclined roof(100) by overlapping an upper part(11) and a lower part(12) to insulate heat and drain water in a building. The planar body is manufactured by mixing waste polypropylene resin of 100 wt% with calpet of 80 to 120 wt%, injection-molding the mixture, spreading urethane resin on the product and performing heat treatment. A fixing hole(11a) is formed in the upper part of the planar body and penetrated by a fixing pin. A fixing projection(12a) is formed in the lower part of the planar body and protruded downward. The roof tiles are fastened firmly by inserting the fixing projection of the upper roof tile to the fixing hole of the lower roof tile. |
