To provide a roof material mainly used as a roofing material in the nailing and scaly pattern execution of the roof of a detached house and to provide its manufacturing method and an execution method of the roof material.

This roof material 1 is provided with a surface side edge stripe lug section 2 formed into a nearly L-shape along the edge section of the surface of a plate, three latch holes 3 arranged at the corner sections of the plate, and two back side edge stripe lug sections 4A and 4B having a nearly L-shape and arranged in parallel along the edge section of the back face of the plate. Two other roof materials 1 are arranged to be partially overlapped on one roof material 1, then the surface side edge stripe lug section 2 of one roof material 1 is abutted between the back side edge stripe lug sections 4A and 4B of the other roof material 1.