Metal roofing material and roofing method

• US 10,724,242 B2
• Filed: 07/11/2016
• Issued: 07/28/2020
• Est. Priority Date: 10/02/2015
• Status: Active Grant

• Current Assignee: Nisshin Steel Company Limited (Nippon Steel Corporation)
• Original Assignee: Nisshin Steel Company Limited (Nippon Steel Corporation)
• Inventors: Okubo, Kenichi, Kurotaki, Motonori, Sugita, Shuichi, Izumi, Keiji, Nagatsu, Tomoyuki, Oota, Yuugo, Norita, Katsunari, Noguchi, Keita, Miura, Norimasa
• Primary Examiner(s): Cajilig, Christine T
• Application Number:
  US15/764,192
• Publication Number:
  US 20190119917A1
• Time in Patent Office: 1,478 Days
• CPC Class Codes: E04D 1/18 of metal
• CPC Class Codes: E04D 1/20 of plastics; of asphalt; of fibrous materials
• CPC Class Codes: E04D 1/24 Roofing elements with cavities, e.g. hollow tiles E04D1/28 takes precedence
• CPC Class Codes: E04D 1/28 Roofing elements comprising two or more layers, e.g. for insulation
• CPC Class Codes: E04D 2001/3423 Nails, rivets, staples or straps piercing or perforating the roof covering material
• CPC Class Codes: E04D 2001/3467 through apertures, holes or slots
• CPC Class Codes: G01N 3/20 by applying steady bending forces G01N3/26, G01N3/28 take precedence

Abstract

The present invention relates to a metal roofing material 1 that is arranged on an eave-side metal roofing material in an eave-ridge direction 6 of a roof so as to overlap the metal roofing material and the eave-side metal roofing material. The metal roofing material includes a front substrate 2 made of a metal sheet and including a body portion 20 formed in a box shape; a back substrate 3 arranged on the back side of the front substrate 2 so as to cover an opening of the body portion 20; a core material 4 filled between the body portion 20 and the back substrate 3; and at least one plate reinforcing member 5 that is embedded in the core material 4 at a position closer to the back substrate 3 than a top plate of the body portion 20 or that is disposed in contact with the outer surface of the back substrate 3.

Claims

1. A metal roofing material that is arranged on an eave-side metal roofing material in an eave-ridge direction of a roof so as to overlap with the eave-side metal roofing material, the metal roofing material being configured to be arranged so that a depth direction of the metal roofing material is along the eave-ridge direction of the roof and a width direction of the metal roofing material is along an eave direction of the roof, the metal roofing material comprising:

a front substrate made of a metal sheet and comprising a body portion formed in a box shape;

a back substrate arranged on the 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; and

at least one plate reinforcing member that is embedded in the core material at a position closer to the back substrate than a top plate of the body portion or that is disposed in contact with the outer surface of the back substrate,

wherein the at least one plate reinforcing member includes a base portion extending along the depth direction and the width direction, a plurality of burring holes each comprising a hole opening and a vertical wall portion extending from the base portion in a height direction of the body portion and standing from an edge of the hole opening, the vertical wall portion being in contact with a back surface of the front substrate.

2. The metal roofing material according to claim 1, wherein the at least one plate reinforcing member extends over the entire region of the opening of the body portion in the eave-ridge direction and in the eave direction orthogonal to the eave-ridge direction.

3. The metal roofing material according to claim 1, wherein the at least one plate reinforcing member continuously extends in the eave direction orthogonal to the eave-ridge direction in a state where the at least one plate reinforcing member is in contact with the back substrate.

4. The metal roofing material according to claim 1, wherein a plurality of plate reinforcing members are disposed so as to be spaced apart from one another in the eave direction orthogonal to the eave-ridge direction in a state where the plurality of plate reinforcing members are in contact with the back substrate.

5. The metal roofing material according to claim 3, wherein the at least one plate reinforcing member extends from a position where at least one tightening member is driven into the metal roofing material to an eave-side end portion of the metal roofing material in the eave-ridge direction.

6. The metal roofing material according to claim 1, wherein the at least one plate reinforcing member is embedded in the core material.

7. The metal roofing material according to claim 1, wherein the hole opening of at least one burring hole is superposed on a position where a tightening member is driven into the metal roofing material.

8. The metal roofing material according to claim 1, wherein the at least one plate reinforcing member comprises a metal or a fiber reinforced plastic.

9. The metal roofing material according to claim 1, wherein the at least one plate reinforcing member comprises a flat sheet or a sheet body comprising an uneven portion.

10. The metal roofing material according to claim 1, wherein the metal roofing material is configured to have an uplift coefficient of 6 N/mm or more when carrying out a strength test method of the metal roofing material comprising the steps of:

tightening the metal roofing material to a base;

applying a load for uplifting an end portion of the metal roofing material tightened to the base to the end portion;

measuring an uplift amount of the end portion, which corresponds to the load;

and determining an uplift coefficient represented by an amount of change of the load respective to an amount of change of the measured uplift amount.

12. A roofing method comprising arranging a ridge-side metal roofing material on an eave-side metal roofing material in an eave-ridge direction of a roof so as to overlap with the eave-side metal roofing material,

wherein the ridge-side metal roofing material comprises the metal roofing material according to claim 1 in which the at least one plate reinforcing member is arranged in contact with the back substrate;

and

wherein the roofing method comprises arranging the ridge-side metal roofing material such that the at least one plate reinforcing member overlaps on a corner portion of the eave-side metal roofing member.

13. The metal roofing material according to claim 4, wherein each of the plurality of plate reinforcing members extends from a position where at least one tightening member is driven into the metal roofing material to an eave-side end portion of the metal roofing material in the eave-ridge direction.

11. A metal roofing material that is arranged on an eave-side metal roofing material in an eave-ridge direction of a roof so as to overlap with the eave-side metal roofing material, the metal roofing material being configured to be arranged so that a depth direction of the metal roofing material is along the eave-ridge direction of the roof and a width direction of the metal roofing material is along an eave direction of the roof, the metal roofing material comprising:

a front substrate made of a metal sheet and comprising a body portion formed in a box shape;

a back substrate made of a metal sheet and arranged on the 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

wherein the back substrate includes a base portion extending along the depth direction and the width direction, a plurality of burring holes each comprising a hole opening and a vertical wall portion extending from the base portion in a height direction of the body portion and standing from an edge of the hole opening, the vertical wall portion being in contact with a back surface of the front substrate, and

wherein the metal roofing material is configured to have an uplift coefficient of 6 N/mm or more when carrying out a strength test method of the metal roofing material comprising the steps of;

tightening the metal roofing material to a base;

applying a load for uplifting an end portion of the metal roofing material tightened to the base to the end portion;

measuring an uplift amount of the end portion, which corresponds to the load; and

determining an uplift coefficient represented by an amount of change of the load respective to an amount of change of the measured uplift amount.