Nisshin Steel Co., Ltd.

Nippon Steel Nisshin Co., Ltd.

Motonori Kurotaki

Kenichi Okubo

Keiji Izumi

Norimasa Miura

Katsunari Norita

Yuugo Oota

Tomoyuki Nagatsu

Shuichi Sugita

Keita Noguchi

The present invention relates to a metal roofing materialthat is arranged on an eave-side metal roofing material in an eave-ridge directionof a roof so as to overlap the metal roofing material and the eave-side metal roofing material. The metal roofing material includes a front substratemade of a metal sheet and including a body portionformed in a box shape; a back substratearranged on the back side of the front substrateso as to cover an opening of the body portion; a core materialfilled between the body portionand the back substrate; and at least one plate reinforcing memberthat is embedded in the core materialat a position closer to the back substratethan a top plate of the body portionor that is disposed in contact with the outer surface of the back substrate

Metal roofing material and roofing method

A body portionof a front substrateincludes first side surfacesand second side surfaces, each of the second side surfacesbeing arranged at a position protruding toward the outer side along a width directionthan the first side surfaceEach of the first side surfacesincludes a side flangeA protruding width of the side flangefrom the first side surfaceis equal to or less than a protruding width of the second side surfacefrom the first side surfaceA metal roofing memberis arranged on a roof base while abutting at least the second side surfaceagainst a second side surface of other metal roofing member.

Metal roofing material, and roofing structure and roofing method using same

Growing community of inventors

Tokyo, Japan

Motonori Kurotaki