US Patent 9091082 Roofing material

An approximately planar roofing material body is arranged adjacent to another roofing material body. A side end part of the roofing material body is overlapped and laid to the another roofing material body. The roofing material body is provided with an inclined piece formed at a side end edge part of the roofing material body so as to be inclined downward. Further, a tip of the inclined piece (an inclined-piece tip) of the roofing material body is formed so as to abut on a front face bent downward of the another roofing material body laid to a downside of the roofing material body.