Metal roofing material
AssigneeNippon Steel Nisshin Co., Ltd.
InventorsKeiji Izumi, Yuugo Oota, Tomoyuki Nagatsu
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Abstract
A metal roofing material according to the present invention comprises: a front substrate 2 having a body portion 20, the body portion 20 being comprised of a metal sheet and being formed into a box shape; a back substrate disposed on a back side of the front substrate 2 so as to cover an opening of the body portion 20; a core material filled between the body portion 20 and the back substrate, the metal roofing material being arranged side by side on a roof base together with other metal roofing materials, wherein at least one edge indicator 22 in the form of protrusion is provided at an edge portion of a top plate 20a of the body portion 20.
Claims17
A metal roofing material comprising:
- a front substrate made of a metal sheet, the front substrate comprising a body portion formed in a box shape;
- a back substrate disposed on a back side of the front substrate so as to cover an opening of the body portion;
- and
- a core material filled between the body portion and the back substrate,
- the metal roofing material being arranged side by side on a roof base together with other metal roofing materials,
- wherein at least one edge indicator in the form of a protrusion is provided at an edge portion of a top plate of the body portion, and
- wherein the edge indicator includes an eave edge indicator provided on the eave side of the top plate and a ridge edge indicator provided on a ridge side of the top plate,
- an eave direction extending width of the eave edge indicator along an eave direction of the top plate being narrower than an eave-ridge direction extending width of the eave edge indicator along an eave-ridge direction of the top plate, and
- an eave direction extending width of the ridge edge indicator along the eave direction of the top plate being broader than the eave direction extending width of the eave edge indicator along the eave direction of the top plate.
A metal roofing material comprising:
- a front substrate made of a metal sheet, the front substrate comprising a body portion formed in a box shape;
- a back substrate disposed on a back side of the front substrate so as to cover an opening of the body portion;
- a core material filled between the body portion and the back substrate,
- the metal roofing material being arranged side by side on a roof base together with other metal roofing materials,
- wherein at least one edge indicator in the form of a protrusion is provided at an edge portion of a top plate of the body portion;
- and
- wherein the top plate further comprises a plurality of protruding eave direction indicators arranged along the eave direction of the top plate,
- each of the eave direction indicators being formed by a plurality of protrusions having an odd number of 3 or more, spaced in the eave direction.
A metal roofing material comprising:
- a front substrate made of a metal sheet, the front substrate comprising a body portion formed in a box shape;
- a back substrate disposed on a back side of the front substrate so as to cover an opening of the body portion;
- and
- a core material filled between the body portion and the back substrate,
- the metal roofing material being arranged side by side on a roof base together with other metal roofing materials,
- wherein the top plate further comprises a plurality of protruding eave direction indicators arranged along the eave direction of the top plate,
- each of the eave direction indicators being formed by a plurality of protrusions having an odd number of 3 or more, spaced in the eave direction.
Dependencies are inferred from the claim text.