JP2012012935A

JP2012012935A - Roofing material

Info

Publication number: JP2012012935A
Application number: JP2011217563A
Authority: JP
Inventors: Takahiko Wakebe; 孝彦分部
Original assignee: Nippon Steel and Sumikin Coated Sheet Corp
Current assignee: Nippon Steel Coated Sheet Corp
Priority date: 2011-09-30
Filing date: 2011-09-30
Publication date: 2012-01-19
Anticipated expiration: 2030-07-05
Also published as: JP5291777B2

Abstract

PROBLEM TO BE SOLVED: To provide a roofing material capable of increasing rigidity of side end edge parts and reducing formation of clearances (openings) due to deformation of the side end edge parts.SOLUTION: Approximately flat plate-like roofing material bodies 1 are arranged side by side. A side edge part of one roofing material body 1 is superposingly laid on another roofing material body 1. The side end edge 1a of the roofing material body 1 is folded back and bent to the rear side thereof to provide a doubly formed reinforcement piece 1b, and the reinforcement piece 1b is bent in a chevron shape.

Description

本発明は、金属屋根材などの屋根材に関するものである。 The present invention relates to a roof material such as a metal roof material.

従来より、複数枚の屋根材を屋根下地に縦横に敷設することにより屋根を形成することが行われているが、この場合、横方向（屋根の水流れ方向と直交する方向）で隣接する屋根材はその側端部同士を上下に重ねるようにして屋根の防水性を確保しようとしている。例えば、特許文献１に記載された屋根材Ａは、図１４に示すように、一方の側端部に略平板状のカバー部２０を形成すると共に、他方の側端部に断面略波状の捨板部２１を形成したものであり、屋根下地６の上に敷設した屋根材Ａの捨板部２１の上に、他の屋根材Ａのカバー部２０を被せるようにして、二枚の屋根材Ａ、Ａを横方向に隣接させて敷設するようにしている。しかし、上記の屋根材Ａでは、防水上の観点からカバー部２０と捨板部２１とを一定の長さに形成し、カバー部２０と捨板部２１とを重ね合わせて屋根材Ａを接続しているため、屋根下地６のけらば部分や降り棟部あるいは屋根下地と二階部分の壁との境界部分（壁立上がり部）において、寸法調整のために屋根材を切断しなければならず、施工現場で屋根材の廃材が生じるおそれがあった。また、カバー部２０を必ず捨板部２１の上に被せるので、屋根材の敷設していく方向が屋根下地の左から右あるいは右から左のいずれか一方向に限定されてしまい、施工性が低下するおそれがあった。 Conventionally, a roof is formed by laying a plurality of roofing materials vertically and horizontally on a roof base, but in this case, the roof adjacent in the horizontal direction (direction perpendicular to the water flow direction of the roof) The material is trying to secure the waterproofness of the roof by overlapping the side edges of the material. For example, as shown in FIG. 14, the roof material A described in Patent Document 1 forms a substantially flat cover portion 20 at one side end portion, and has a substantially wavy cross section at the other side end portion. A plate portion 21 is formed, and two roofing materials are formed so that a cover portion 20 of another roofing material A is covered on the discarding plate portion 21 of the roofing material A laid on the roof base 6. A and A are laid adjacent to each other in the horizontal direction. However, in the roof material A described above, from the viewpoint of waterproofing, the cover portion 20 and the discard plate portion 21 are formed to have a certain length, and the cover portion 20 and the discard plate portion 21 are overlapped to connect the roof material A. Therefore, the roof material must be cut to adjust the dimensions at the loose part of the roof base 6, the falling ridge, or the boundary part (wall rising part) between the roof base and the wall of the second floor part, There was a possibility that the waste material of the roofing material was generated at the construction site. Moreover, since the cover part 20 is always put on the discard board part 21, the direction in which the roofing material is laid is limited to one of the left to right or right to left directions of the roof base, and the workability is improved. There was a risk of decline.

特開平１１−１５９０６６号公報Japanese Patent Laid-Open No. 11-159066

そこで、本出願人は、両方の側端部に断面略波状の接続部を有する屋根材を提案している（特願２００９−３４７３）。この場合、横方向で隣接する屋根材の側端部の重ね合わせ長さを施工現場に応じて適宜調整することによって、寸法調整のために屋根材を切断する必要が無く、また、隣接する屋根材のうち、左右いずれの屋根材を上にし、いずれの屋根材を下にして重ね合わせるかは特に制限されないため、屋根材を敷設していく方向が一方向に限定されないものである。 In view of this, the present applicant has proposed a roofing material having a connection portion having a substantially wavy cross section at both side end portions (Japanese Patent Application No. 2009-3473). In this case, it is not necessary to cut the roof material for dimension adjustment by appropriately adjusting the overlapping length of the side edges of the roof material adjacent in the lateral direction according to the construction site, and the adjacent roof Of the materials, it is not particularly limited as to which one of the left and right roof materials is up and which roof material is down, and therefore the direction in which the roof material is laid is not limited to one direction.

しかし、両方の側端部に断面略波状の接続部を有する屋根材の場合では、隣接する屋根材の重ね合わせ長さの自由度が高くなるために、上に重ねた屋根材Ａの側端縁部と下に位置する屋根材Ａの側端部の表面との境界線Ｌが、図１５に示すように、屋根全体で規則性がほとんどなくてバラバラに形成され、屋根の外観が低下するおそれがあった。 However, in the case of a roofing material having a connection portion having a substantially corrugated cross section at both side edges, the degree of freedom of the overlapping length of adjacent roofing materials becomes high, so that the side edge of the roofing material A stacked above As shown in FIG. 15, the boundary line L between the edge portion and the surface of the side end portion of the roofing material A located below is formed with no regularity in the entire roof, and the appearance of the roof is lowered. There was a fear.

本発明は上記の点に鑑みてなされたものであり、側端縁部の剛性を高め、側端縁部の変形による隙間形成（口開き）を小さくすることができる屋根材を提供することを目的とするものである。 The present invention has been made in view of the above points, and provides a roofing material capable of increasing the rigidity of the side edge portion and reducing gap formation (opening) due to deformation of the side edge portion. It is the purpose.

本発明の屋根材Ａは、略平板状の屋根材本体１が隣接して配置され、一方の屋根材本体１の側端部が他方の屋根材本体１に重ねて敷設される屋根材であって、屋根材本体１の側端縁部１ａを裏面側に折り返し屈曲して補強片１ｂを設けて二重に形成すると共に補強片１ｂがく字状となるように屈曲して成ることを特徴とする。 The roofing material A of the present invention is a roofing material in which a substantially flat roofing material body 1 is arranged adjacent to each other, and a side end portion of one roofing material body 1 is laid on the other roofing material body 1. The side edge 1a of the roofing material body 1 is bent back to the back side to provide a reinforcing piece 1b to be double-formed and bent so that the reinforcing piece 1b has a square shape. To do.

本発明では、屋根材の側端縁部の剛性を高め、横方向に隣接する屋根材の接続部分（横継ぎ部分）における側端縁部の変形による隙間形成（口開き）を小さくすることができるものである。 In the present invention, it is possible to increase the rigidity of the side edge of the roof material and reduce gap formation (opening) due to the deformation of the side edge at the connecting portion (transverse portion) of the roof material adjacent in the lateral direction. It can be done.

本発明の実施の形態の一例を示す斜視図である。It is a perspective view which shows an example of embodiment of this invention. 同上の接続状態の一例を示す斜視図である。It is a perspective view which shows an example of a connection state same as the above. 同上の接続状態の一例を示し、（ａ）（ｂ）は一部の断面図である。An example of a connection state same as the above is shown, and (a) and (b) are partial cross-sectional views. 同上の施工手順の一例を示し、（ａ）〜（ｄ）は一部の断面図である。An example of the construction procedure is shown, and (a) to (d) are partial cross-sectional views. 同上の施工状態の一例を示す概略図である。It is the schematic which shows an example of the construction state same as the above. 同上の施工状態の一例を示し、（ａ）は断面図、（ｂ）（ｃ）は斜視図である。An example of a construction state same as the above is shown, (a) is a cross-sectional view, and (b) and (c) are perspective views. 同上の屋根下地の一例を示す平面図である。It is a top view which shows an example of a roof base | substrate same as the above. 同上の他の実施の形態の一例を示し、（ａ）〜（ｄ）は斜視図である。An example of other embodiment same as the above is shown, and (a) to (d) are perspective views. 同上の接続状態の一例を示し、（ａ）（ｂ）は一部の断面図である。An example of a connection state same as the above is shown, and (a) and (b) are partial cross-sectional views. 同上の他の接続状態の一例を示す一部の断面図である。It is a partial sectional view showing an example of another connection state same as the above. 同上の他の施工手順の一例を示し、（ａ）〜（ｄ）は一部の断面図である。An example of the other construction procedure is shown, and (a) to (d) are partial cross-sectional views. 同上の屋根材の側端縁部の一例を示し、（ａ）（ｂ）は断面図である。An example of the side edge part of a roof material same as the above is shown, (a) (b) is a sectional view. 同上の屋根材の側端部の一例を示し、（ａ）は（ｂ）の一部の拡大断面図、（ｂ）は一部の断面図、（ｃ）は施工状態を示す一部の断面図である。An example of the side edge part of a roof material same as the above is shown, (a) is a partial enlarged sectional view of (b), (b) is a partial sectional view, and (c) is a partial sectional view showing a construction state. FIG. 従来例を示す一部の断面図である。It is a partial sectional view showing a conventional example. 先行例を示す概略図である。It is the schematic which shows a prior example.

以下、本発明を実施するための形態を説明する。 Hereinafter, modes for carrying out the present invention will be described.

本発明の屋根材Ａは、金属板をロール成形加工などで加工して所望の形状に形成することができる。金属板としては、例えば、厚み０．３〜０．５ｍｍのものを好適に用いることができ、また、金属板の種類としては、塗装鋼板や亜鉛めっき鋼板、ガルバリウム鋼板（登録商標）などの各種のものを用いることができる。尚、製造については、従来ではロール成形機で対応するしかなかったが、本発明の屋根材ＡはＲ加工（曲面加工）がほとんどないためベンダー加工機でも対応でき、また、端部加工はヘミング曲げ加工及びプレス加工で対応できる。 The roofing material A of the present invention can be formed into a desired shape by processing a metal plate by roll forming or the like. As the metal plate, for example, a metal plate having a thickness of 0.3 to 0.5 mm can be suitably used. As the type of the metal plate, various types such as a coated steel plate, a galvanized steel plate, and a Galvalume steel plate (registered trademark) are used. Can be used. In addition, for manufacturing, conventionally, a roll forming machine could only be used. However, the roof material A of the present invention has almost no R processing (curved surface processing), and can be handled by a bender processing machine. Can be handled by bending and pressing.

本発明の屋根材Ａは、図１に示すように、左右対称（線対称）に形成されるものであって、屋根材本体１と被係止部４と係止部５及び固定片１０などを備えて形成されている。 As shown in FIG. 1, the roof material A of the present invention is formed symmetrically (line symmetrical), and includes a roof material body 1, a locked portion 4, a locking portion 5, a fixed piece 10, and the like. It is formed with.

屋根材本体１は横方向（屋根の水流れ方向と直交する方向）に長く形成されており、横方向の長さ寸法Ｌ１は、例えば、２０００ｍｍ程度の定尺とすることができ、また、屋根材本体１の縦方向（屋根の水流れ方向）の働き幅Ｌ２は、例えば、２００〜２８０ｍｍとすることができ、好ましくは２５０ｍｍ程度とすることができる。屋根材本体１の両方の側端部には複数の突起部２が略平行に形成されている。突起部２はリブ加工などにより屋根材本体１の表面で開口する断面略Ｖ字状の溝で形成することができ、屋根材本体１の裏面に突出して屋根材本体１の縦方向の略全長にわたって形成されている。突起部２は、例えば、幅４〜１０ｍｍ、表面からの深さ０．５〜１．５ｍｍ、長さ１８０〜２８０ｍｍとすることができる。突起部２は屋根材本体１の側端縁部１ａから幅寸法Ｌ３＝１００〜２００ｍｍの範囲に形成するのが好ましい。尚、突起部２は屋根材本体１の表面に突出して形成されていてもよく、また、屋根材本体１の表面に突出する突起部２と裏面に突出する突起部２の両方を形成しても良い。屋根材本体１の側端縁部１ａは折り曲げ加工し、防錆・剛性を向上させるためにエッジを外部から見えにくくするようにしている。 The roof material main body 1 is formed long in the lateral direction (direction orthogonal to the water flow direction of the roof), and the length L1 in the lateral direction can be, for example, a standard length of about 2000 mm. The working width L2 of the material main body 1 in the vertical direction (the water flow direction of the roof) can be set to, for example, 200 to 280 mm, and preferably about 250 mm. A plurality of protrusions 2 are formed substantially parallel to both side end portions of the roofing material body 1. The protrusion 2 can be formed by a groove having a substantially V-shaped cross section that opens on the surface of the roofing material body 1 by rib processing or the like. Is formed over. The protrusion 2 can have a width of 4 to 10 mm, a depth from the surface of 0.5 to 1.5 mm, and a length of 180 to 280 mm, for example. It is preferable to form the protrusion part 2 in the range of the width dimension L3 = 100-200 mm from the side edge part 1a of the roofing material main body 1. FIG. The protrusion 2 may be formed so as to protrude from the surface of the roofing material body 1, and both the protrusion 2 protruding from the surface of the roofing material body 1 and the protrusion 2 protruding from the back surface are formed. Also good. The side edge 1a of the roofing material body 1 is bent to make it difficult to see the edge from the outside in order to improve rust prevention and rigidity.

また、屋根材本体１には位置決め部３が形成されている。位置決め部３は、リブ加工などにより屋根材本体１の裏面で開口する断面略逆Ｖ字状に形成されており、屋根材本体１の表面に突出して屋根材本体１の縦方向の略全長にわたって形成されている。また、位置決め部３は屋根材本体１の両側部に一個ずつあるいは複数個ずつ設けることができる。位置決め部３を屋根材本体１の両側部に一個ずつ設ける場合は、屋根材本体１の側端縁部１ａから所定の寸法の位置に形成することができ、例えば、屋根材本体１の側端縁部１ａから１００ｍｍの位置に位置決め部３を形成することができる。また、位置決め部３を屋根材本体１の両側部に複数個ずつ設ける場合は、屋根材本体１の側端縁部１ａから一定の間隔で形成することができ、例えば、屋根材本体１の側端縁部１ａから１００ｍｍの間隔で位置決め部３を形成することができる。尚、位置決め部３は視認できるものであればどのような形状や位置に形成されていても良い。 Further, a positioning portion 3 is formed on the roof material main body 1. The positioning portion 3 is formed in a substantially inverted V-shaped cross-section that opens on the back surface of the roofing material body 1 by rib processing or the like, protrudes from the surface of the roofing material body 1 and extends over the substantially entire length of the roofing material body 1 in the vertical direction. Is formed. Moreover, the positioning part 3 can be provided in the both sides of the roof material main body 1 one by one or plural pieces. When one positioning part 3 is provided on each side of the roofing material body 1, the positioning part 3 can be formed at a position of a predetermined dimension from the side edge 1 a of the roofing material body 1, for example, the side edge of the roofing material body 1. The positioning part 3 can be formed at a position 100 mm from the edge 1a. In addition, when a plurality of positioning portions 3 are provided on both sides of the roof material main body 1, the positioning portions 3 can be formed at regular intervals from the side edge 1 a of the roof material main body 1. The positioning part 3 can be formed at an interval of 100 mm from the edge part 1a. The positioning portion 3 may be formed in any shape or position as long as it can be visually recognized.

被係止部４は、屋根材本体１の水下側端部（例えば、軒側端部）に形成されるものであって、屋根材本体１の水下側端部に延設される上記金属板の一部を屋根材本体１の水下側端部の裏面側に折り返すように屈曲することにより、屋根材本体１の横方向の略全長にわたって形成することができる。 The to-be-latched part 4 is formed in the underwater side edge part (for example, eaves side edge part) of the roof material main body 1, Comprising: The said extension extended in the underwater side edge part of the roof material main body 1 By bending a part of the metal plate so as to be folded back to the back side of the underwater side end portion of the roof material main body 1, the roof plate main body 1 can be formed over substantially the entire length in the lateral direction.

係止部５は、屋根材本体１の水上側端部（例えば、棟側端部）に形成されるものであって、屋根材本体１の水上側端部に延設される上記金属板の一部を屋根材本体１の水上側端部の表面側に折り返すように屈曲することにより、屋根材本体１の横方向の略全長にわたって、上片５ａと下片５ｂとからなる断面略倒Ｕ字状に形成することができる。従って、係止部５は屋根材本体１の上方において、屋根材本体１の水上側端部から水下側に向かって突出して形成され、係止部５の水下側端部が閉塞され、係止部５の水上側が開放されるような断面略倒Ｕ字状に形成されている。 The locking portion 5 is formed at the water-side end portion (for example, the ridge-side end portion) of the roof material main body 1 and extends from the water-side end portion of the roof material main body 1. By bending a part so as to be folded back to the surface side of the water-side end portion of the roof material main body 1, the cross-section of the upper piece 5a and the lower piece 5b is substantially inverted over substantially the entire length of the roof material main body 1 in the lateral direction. It can be formed in a letter shape. Therefore, the locking part 5 is formed to protrude from the water-side end of the roofing material body 1 toward the waterside above the roofing material body 1, and the water-side end of the locking part 5 is closed, The cross section is formed in a substantially inverted U shape so that the water side of the locking portion 5 is opened.

固定片１０は、係止部５の水上側端部に突設される上記金属板の一部で形成することができる。固定片１０は屋根材本体１の横方向の略全長にわたって形成されており、縦方向の断面形状が略逆へ字状に形成されており、係止部５の上片５ａから水上側に向かって突設されている。 The fixing piece 10 can be formed by a part of the metal plate protruding from the water-side end of the locking portion 5. The fixed piece 10 is formed over substantially the entire length in the horizontal direction of the roof material main body 1, and the vertical cross-sectional shape is formed in a substantially reverse letter shape, from the upper piece 5 a of the locking portion 5 toward the water side. Projecting.

そして、本発明の屋根材Ａはその複数枚を野地板などの屋根下地６の上に縦横に敷設するものであり、これにより、屋根を形成することができる。この場合、隣接して敷設されて屋根材Ａ、Ａは取り付け強度の確保や防水性の向上のために接続されている。 And the roofing material A of this invention lays the plurality on the roof base | substrate 6 of a field board etc. vertically and horizontally, and can thereby form a roof. In this case, the roofing materials A and A are laid adjacent to each other and are connected to ensure attachment strength and improve waterproofness.

図２に示すように、横方向で隣接する屋根材Ａ、Ａは屋根材本体１の側端部同士を上下に重ね合わせたり、あるいは一方の屋根材Ａの屋根材本体１の側端部を他方の屋根材Ａの屋根材本体１と上下に重ね合わせたりすることにより接続する。ここで、屋根材Ａの縦方向の断面形状は横方向の全長にわたって略一定であるため、重ね合わせ寸法は任意に設定可能であり、防水性能を確保するために、屋根材本体１の側端縁部１ａから１００ｍｍ以上重ね合わせることが好ましいが、屋根の各部分の納めの寸法調整に応じて重ね合わせ寸法を変えることができる。尚、重ね合わせる寸法の上限は特に設定されないが、あまりに大きいと屋根材Ａに無駄な部分が増加してしまうので、重ね合わせる寸法は屋根材本体１の側端縁部１ａから横寸法の半分以下とするのが好ましく、より好ましくは２００ｍｍ以下にするのがよい。また、屋根材Ａは左右対称であるために、横方向で隣接する屋根材Ａ、Ａの左右のどちらも上に重ねることが可能であり、屋根下地６の横方向の左右何れの方向からでも順次敷設していくことができる。 As shown in FIG. 2, the roofing materials A and A adjacent in the horizontal direction are overlapped with each other on the side ends of the roofing material main body 1 or the side ends of the roofing material main body 1 of one roofing material A are overlapped. The other roofing material A is connected to the roofing material main body 1 by being superimposed one above the other. Here, since the cross-sectional shape of the roof material A in the vertical direction is substantially constant over the entire length in the horizontal direction, the overlapping dimension can be arbitrarily set, and in order to ensure waterproof performance, Although it is preferable to overlap 100 mm or more from the edge 1a, the overlapping dimension can be changed according to the adjustment of the size of each part of the roof. In addition, although the upper limit of the dimension to overlap is not set in particular, since a useless part will increase in the roofing material A if it is too large, the dimension to overlap is less than half of the horizontal dimension from the side edge part 1a of the roofing material main body 1. It is preferable to set it to 200 mm or less. Further, since the roof material A is symmetrical, it is possible to overlap both the left and right roof materials A and A adjacent in the horizontal direction, and from either the left or right direction of the roof base 6 in the horizontal direction. It can be laid sequentially.

そして、上下に重なった屋根材Ａ、Ａの間には突起部２により隙間Ｓを設けることができる。すなわち、図３（ａ）に示すように、下側の屋根材Ａの屋根材本体１の表面の平坦部分に、上側の屋根材Ａに設けた突起部２が載置することにより、下側の屋根材Ａの屋根材本体１の表面と上側の屋根材Ａの屋根材本体１の裏面との間に隙間Ｓを形成することができる。通常、雨水は屋根材Ａの表面を流れ、隙間Ｓには雨水は浸入しないが、万が一、横方向で隣接する屋根材Ａ、Ａの重ね合わせ部分において、上側の屋根材Ａの下に雨水が浸入した場合でも、この隙間Ｓを通じて雨水の排水を行うことができる。従って、確実な隙間Ｓの形成のため、上下に重なった屋根材Ａ、Ａの突起部２同士は重ならない方が好ましい。尚、突起部２が屋根材本体１の表面に突出している場合は、下側の屋根材Ａの屋根材本体１に設けた突起部２の上端に、上側の屋根材Ａの屋根材本体１の裏面の平坦部分が載置することにより、上記と同様の隙間Ｓを形成することができる。また、縦方向で隣接する屋根材Ａ、Ａはその一部を上下に重ね合わせることにより接続する。この場合、水下側（例えば、軒側）に敷設された屋根材Ａの係止部５に水上側（例えば、棟側）に敷設された屋根材Ａの被係止部４を係止する。 And the clearance gap S can be provided by the projection part 2 between the roof materials A and A which overlapped up and down. That is, as shown in FIG. 3A, the protrusion 2 provided on the upper roof material A is placed on the flat portion of the surface of the roof material body 1 of the lower roof material A, so that the lower side A gap S can be formed between the surface of the roof material body 1 of the roof material A and the back surface of the roof material body 1 of the upper roof material A. Usually, rainwater flows on the surface of the roofing material A, and rainwater does not enter the gap S. However, in the unlikely event that rainwater falls under the roofing material A on the upper side in the overlapping portion of the roofing materials A and A adjacent in the lateral direction. Even when it enters, rainwater can be drained through the gap S. Therefore, it is preferable that the protrusions 2 of the roofing materials A and A that overlap in the vertical direction do not overlap with each other in order to form the reliable gap S. In addition, when the protrusion part 2 protrudes on the surface of the roof material main body 1, the roof material main body 1 of the upper roof material A is formed on the upper end of the protrusion part 2 provided on the roof material main body 1 of the lower roof material A. By placing the flat portion on the back surface of this, a gap S similar to the above can be formed. Moreover, the roof materials A and A adjacent in the vertical direction are connected by overlapping a part thereof vertically. In this case, the locked portion 4 of the roof material A laid on the water side (for example, the ridge side) is locked to the locking portion 5 of the roof material A laid on the water side (for example, the eave side). .

ここで、横方向及び縦方向の屋根材Ａ、Ａの接続について詳述する。まず、係止部５を上方に伸長した状態で屋根材Ａを屋根下地６に載置し、ビスなどの固定具１１を固定片１０及び屋根下地６に打ち込んで固定片１０を固定する。このように固定片１０を固定することにより、係止部５を上下に収縮して上下寸法（厚み）を小さくした状態で形状を固定（確定）することができる。次に、固定した屋根材Ａに別の屋根材Ａを横方向に並べて載置する。このとき、上記のように、隣接する屋根材Ａ、Ａは横方向にずらした状態で上下に重ね合わせることにより接続する。また、固定した屋根材Ａの係止部５が新たに配置する屋根材Ａの係止部５の上片５ａと下片５ｂとの間に水上側から差し込まれることにより、図４（ａ）に示すように、固定した屋根材Ａの係止部５の表面に新たに配置する方の屋根材Ａの係止部５を被せるようにし、また、固定した屋根材Ａの固定片１０の表面に新たに配置する方の屋根材Ａの固定片１０を被せるようにする。次に、図４（ｂ）に示すように、新たに配置した屋根材Ａの固定片１０と、固定した屋根材Ａの固定片１０とに固定具１１を打ち込むことによって、新たに配置した屋根材Ａの固定片１０を屋根下地６に固定する。 Here, the connection of the roof materials A and A in the horizontal direction and the vertical direction will be described in detail. First, the roof material A is placed on the roof base 6 with the locking portion 5 extended upward, and a fixing tool 11 such as a screw is driven into the fixing piece 10 and the roof base 6 to fix the fixing piece 10. By fixing the fixing piece 10 in this manner, the shape can be fixed (determined) in a state where the engaging portion 5 is contracted up and down to reduce the vertical dimension (thickness). Next, another roof material A is placed side by side on the fixed roof material A. At this time, as described above, the adjacent roofing materials A and A are connected by being superposed vertically while being shifted in the lateral direction. Moreover, when the locking part 5 of the fixed roofing material A is inserted from the water side between the upper piece 5a and the lower piece 5b of the locking part 5 of the newly arranged roofing material A, FIG. As shown in Fig. 2, the surface of the fixed portion 10 of the fixed roofing material A is covered with the engaging portion 5 of the roofing material A to be newly arranged on the surface of the fixed portion 5 of the fixed roofing material A. The fixed piece 10 of the roof material A to be newly arranged is put on. Next, as shown in FIG. 4 (b), the newly placed roof is formed by driving a fixture 11 into the newly placed roof material A fixed piece 10 and the fixed roof material A fixed piece 10. The fixed piece 10 of the material A is fixed to the roof base 6.

このようにして横一列に複数枚の屋根材Ａ、Ａ…を敷設した後、これら敷設した屋根材Ａの水上側に他の複数枚の屋根材Ａ、Ａ…を横一列に順次敷設していく。このとき、図４（ｃ）に示すように、水上側の屋根材Ａの被係止部４を水下側の屋根材（上側に被せた屋根材）Ａの屋根材本体１と係止部５との間に挿入し、挿入した被係止部４を係止部５の下面に係止する。この後、図４（ｄ）に示すように、さらに他の水上側の屋根材Ａの被係止部４を上記水上側の屋根材Ａの被係止部４と水下側の屋根材Ａの屋根材本体１との間に挿入することによって水下側の屋根材Ａの係止部５に係止する。このように、縦方向と横方向に四枚の屋根材Ａが隣接する箇所では、最終的に二つの被係止部４、４と二つの係止部５、５とが重なった状態となる。このようにして複数枚の屋根材Ａを縦横に敷設することによって、屋根を形成することができる。 In this way, after laying a plurality of roofing materials A, A ... in a horizontal row, another plurality of roofing materials A, A ... are sequentially laid in a horizontal row above the laid roofing material A. Go. At this time, as shown in FIG.4 (c), the to-be-latched part 4 of the roof material A on the water upper side and the roof material main body 1 and the latching part of the roof material A (the roof material on the upper side) A of the water side The inserted locked portion 4 is locked to the lower surface of the locking portion 5. Thereafter, as shown in FIG. 4 (d), the locked portion 4 of the other roof material A on the water side is further replaced with the locked portion 4 of the roof material A on the water side and the roof material A on the water side. By being inserted between the roof material main body 1 and the roof material body 1, the water is locked to the locking portion 5 of the roof material A on the underwater side. Thus, in the location where the four roof materials A are adjacent to each other in the vertical direction and the horizontal direction, the two locked portions 4 and 4 and the two locking portions 5 and 5 are finally overlapped. . In this way, a roof can be formed by laying a plurality of roof materials A vertically and horizontally.

そして、本発明の屋根材Ａでは、横方向に隣接する屋根材Ａ、Ａを上下に重ねるにあたって、位置決め部３をガイド（目安）にする。例えば、図３（ａ）に示すように、横方向に隣接する屋根材Ａ、Ａのうち、一方の屋根材Ａに設けた位置決め部３と、他方の屋根材Ａの側端縁部１ａとを重ね合わせるようにする。このように位置決め部３を目印にして横方向に隣接する屋根材Ａ、Ａの重ね合わせ位置を調整することができ、これにより、横方向に隣接する屋根材Ａ、Ａにおいて、上に重ねた屋根材Ａの屋根材本体１の側端縁部１ａと下に位置する屋根材１の屋根材本体１の表面との境界線（目地）Ｌを屋根全体で規則的に揃えやすくなる。従って、例えば、図５に示すように、縦方向に隣接する屋根材Ａ、Ａの上記境界線Ｌが一直線に並ぶように、横方向に隣接する屋根材Ａ、Ａを重ね合わせて接続することにより、屋根に不規則な目地が形成されにくくなって、屋根の外観が低下しにくくなるものである。 And in the roofing material A of this invention, when the roofing materials A and A adjacent to a horizontal direction are piled up and down, the positioning part 3 is made into a guide (guideline). For example, as shown to Fig.3 (a), among the roofing materials A and A which adjoin a horizontal direction, the positioning part 3 provided in one roofing material A, the side edge part 1a of the other roofing material A, and To overlap. Thus, the overlapping position of the roofing materials A and A adjacent in the horizontal direction can be adjusted using the positioning portion 3 as a mark, and thus the roofing materials A and A adjacent in the horizontal direction are overlapped on each other. The boundary line (joint) L between the side edge 1a of the roofing material body 1 of the roofing material A and the surface of the roofing material body 1 of the roofing material 1 positioned below can be easily aligned regularly throughout the roof. Therefore, for example, as shown in FIG. 5, the roof materials A and A that are adjacent in the lateral direction are overlapped and connected so that the boundary lines L of the roof materials A and A that are adjacent in the vertical direction are aligned. As a result, irregular joints are less likely to be formed on the roof, and the appearance of the roof is less likely to deteriorate.

また、屋根材本体１の両方の側端部に複数個ずつ位置決め部３を形成した場合は、図３（ｂ）に示すように、横方向に隣接する屋根材Ａ、Ａのうち、一方の屋根材Ａに設けた位置決め部３と、他方の屋根材Ａの側端縁部１ａとを重ね合わせると共にその他の残りの位置決め部３同士を重ね合わせるようにすることができる。尚、屋根材本体１の側端縁部１ａは、平面視において、突起部２とは近似した外観とするために、斜め下方に向かって傾斜するように屈曲されている。従って、上記境界線Ｌと同様の外観が突起部２で発現されて境界線Ｌが目立たないようにすることができる。 In addition, when a plurality of positioning portions 3 are formed at both side end portions of the roof material main body 1, as shown in FIG. 3 (b), one of the roof materials A and A adjacent in the lateral direction. The positioning portion 3 provided on the roof material A and the side edge portion 1a of the other roof material A can be overlapped, and the other remaining positioning portions 3 can be overlapped. Note that the side edge 1a of the roofing material body 1 is bent so as to be inclined obliquely downward in order to have an appearance approximate to the protrusion 2 in plan view. Therefore, an appearance similar to that of the boundary line L is expressed by the protrusions 2 so that the boundary line L is not noticeable.

本発明の屋根材Ａは被係止部４や係止部５に屋根材本体１の表面に対して垂直となる部位がないため、屋根材Ａをその側端部が上方に突出するように略直角に容易に折り曲げることができる。従って、屋根下地６と立ち上がり壁との境界部分の納め構造において、屋根材Ａの側端部を上方へ略直角に折り曲げて立ち上がり壁の表面に沿わせると共に隣接する屋根材Ａ、Ａの重ね合わせ寸法を調整することにより、屋根材Ａを切断することが無くなり、施工現場での廃材の発生を極力少なくすることができる。また、本発明は上記のように折り曲げやすい形状であるので、切断することなく、屋根下地６の表面に沿わせて降り棟に敷設することができる。 Since the roofing material A of the present invention does not have a portion perpendicular to the surface of the roofing material main body 1 in the locked part 4 or the locking part 5, the side end of the roofing material A protrudes upward. It can be easily folded at a substantially right angle. Accordingly, in the storage structure of the boundary portion between the roof base 6 and the rising wall, the side end portion of the roof material A is bent upward at a substantially right angle so as to be along the surface of the rising wall and the adjacent roof materials A and A are overlapped. By adjusting the dimensions, the roof material A is not cut, and the generation of waste materials at the construction site can be minimized. In addition, since the present invention has a shape that can be easily bent as described above, it can be laid in a descending ridge along the surface of the roof base 6 without cutting.

すなわち、屋根下地６の長面６ａと短面６ｂとが降り棟６ｃを介して隣接する場合、まず、図６（ｂ）に示すように、長面６ａに複数枚の屋根材Ａ、Ａ…を横方向及び軒側から棟側に向かって敷設していくが、最も短面６ｂに近い部分に敷設した屋根材Ａの短面６ｂ側の側端部を折り曲げて短面６ｂの表面に沿わせて配置するようにする。次に、図６（ｃ）に示すように、短面６ｂに複数枚の屋根材Ａ、Ａ…を横方向及び軒側から棟側に向かって敷設していくが、最も長面６ａに近い部分に敷設した屋根材Ａの長面６ａ側の側端部を折り曲げて、長面６ａに敷設した屋根材Ａの表面に沿わせて配置するようにする。この後、図６（ａ）に示すように、断面略へ字状のカバー材１３を降り棟６ｃ及び棟６ｄに取り付けることにより、屋根材Ａを施工することができる。そして、図６（ａ）に示すように、屋根下地と立ち上がり壁との境界部分に施工する場合と同様に、屋根材Ａを切断することなく、重ね合わせ寸法を調整して納めることができ、施工現場での廃材の発生を極力少なくすることができる。また、図６（ｃ）に示すように、本発明の屋根材Ａは短面６ｂに施工する場合、軒側から棟側に葺き上げていくにつれて、重ね合わせ部分Ｋ（点々模様で示す）の寸法が長くなっていくが、長面６ａに施工する場合は重ね合わせ部分Ｋの寸法が一定で切断もすることなく納めることができる。 That is, when the long surface 6a and the short surface 6b of the roof base 6 are adjacent to each other via the descending ridge 6c, first, as shown in FIG. 6B, a plurality of roof materials A, A. Are laid in the lateral direction and from the eaves side toward the ridge side, but the side edge on the short surface 6b side of the roofing material A laid in the portion closest to the short surface 6b is bent to follow the surface of the short surface 6b. To be arranged. Next, as shown in FIG. 6C, a plurality of roofing materials A, A... Are laid on the short surface 6b from the lateral direction and from the eaves side to the ridge side, but are closest to the long surface 6a. The side end portion on the long surface 6a side of the roof material A laid on the part is bent and arranged along the surface of the roof material A laid on the long surface 6a. Thereafter, as shown in FIG. 6 (a), the roof material A can be constructed by attaching the cover material 13 having a substantially square cross section to the ridge 6c and the ridge 6d. And, as shown in FIG. 6 (a), as in the case of construction at the boundary between the roof base and the rising wall, the roof material A can be adjusted and stored without cutting, Generation of waste materials at the construction site can be minimized. Moreover, as shown in FIG.6 (c), when the roofing material A of this invention is constructed | assembled in the short surface 6b, as it rolls up from the eave side to the ridge side, the overlapping part K (it shows with a dotted pattern). Although the dimension becomes longer, when the construction is performed on the long surface 6a, the dimension of the overlapped portion K is constant and can be accommodated without being cut.

本発明の屋根材Ａは、施工現場ではなく工場等で予め屋根の形状に合わせて折り曲げ加工しておくことができる。屋根材Ａを施工する屋根下地６は、図面等に記載された設計寸法と、施工現場で実際に測定した実寸法とに誤差があり、従来では、実寸法に合わせて施工現場で屋根材Ａを加工しなければならないため、工場等で予め屋根材Ａを加工しておくことは難しい。しかし、本発明では、横方向で隣接する屋根材Ａ、Ａを重ね合わせて施工するので、重ね合わせ寸法を調整することによって、上記の誤差を吸収することができる。従って、設計寸法に合わせて工場等で予め屋根材Ａを加工してプレカット品とすることができ、施工時間の大幅な短縮を図ることができると共に施工者の技術に頼ることなく精度良く屋根材Ａを仕上げることができる。 The roofing material A of the present invention can be bent in advance according to the shape of the roof, not at the construction site but at a factory or the like. The roof base 6 on which the roofing material A is constructed has an error between the design dimensions described in the drawings and the actual dimensions actually measured at the construction site, and conventionally, the roofing material A at the construction site according to the actual dimensions. Therefore, it is difficult to process the roof material A in advance at a factory or the like. However, in the present invention, the roofing materials A and A that are adjacent in the lateral direction are overlapped and constructed, so that the above error can be absorbed by adjusting the overlapping dimension. Therefore, the roofing material A can be processed in advance in the factory according to the design dimensions to make a pre-cut product, and the construction time can be greatly shortened and the roofing material can be accurately obtained without depending on the technique of the installer. A can be finished.

図７は屋根下地６の平面図を示し、符号Ｓ１は隅棟部を、符号Ｓ２はけらば部を、符号Ｓ３は谷部を、符号Ｓ４は壁立ち上げ部をそれぞれ示す。一方の側端部が隅棟部Ｓ１に沿って配置される屋根材Ａは、図８（ａ）に示すように、図１に示す屋根材Ａにおいて、一方の側端部が隅棟部Ｓ１の傾斜に沿うように斜めにカットされ、さらにカットした側端部を上側に略直角に折り曲げて立ち上げ部１ｂが形成されている。立ち上げ部１ｂは隅棟部Ｓ１に配置される棟包み等に収容されるものである。また、一方の側端部がけらば部Ｓ２に沿って配置される屋根材Ａは、図８（ｂ）に示すように、図１に示す屋根材Ａにおいて、一方の側端部が所定の長さだけカットされ、さらにカットした側端部をけらば部Ｓ２に沿うように下側に略Ｌ字状に折り曲げてけらば覆い部１ｃが形成されている。けらば覆い部１ｃは屋根下地６のけらば端部を覆うように配置されるものである。また、一方の側端部が谷部Ｓ３に沿って配置される屋根材Ａは、図８（ｃ）に示すように、図１に示す屋根材Ａにおいて、一方の側端部が谷部Ｓ３の傾斜に沿うように斜めにカットされ、さらにカットした側端部を屋根材本体１の裏面側に折り返して水切り部１ｄが形成されている。水切り部１ｄは防水のために形成されている。さらに、一方の側端部が壁立ち上げ部Ｓ４に沿って配置される屋根材Ａは、図８（ｄ）に示すように、図１に示す屋根材Ａにおいて、一方の側端部が所定の長さだけカットされ、さらにカットした側端部を壁立ち上げ部Ｓ４に沿うように上側に略直角に折り曲げて壁覆い部１ｅが形成されている。壁覆い部１ｅは２階の外壁下地Ｇの下部外面を覆うように配置される。 FIG. 7 shows a plan view of the roof base 6, where symbol S <b> 1 indicates a corner ridge portion, symbol S <b> 2 indicates a loose portion, symbol S <b> 3 indicates a valley portion, and symbol S <b> 4 indicates a wall rising portion. As shown in FIG. 8 (a), the roof material A in which one side end portion is arranged along the corner ridge portion S1, in the roof material A shown in FIG. 1, the one side end portion is the corner ridge portion S1. The raised portion 1b is formed by being obliquely cut so as to follow the inclination, and by bending the cut side end portion upward at a substantially right angle. The rising portion 1b is accommodated in a wrapping or the like disposed in the corner ridge portion S1. In addition, as shown in FIG. 8 (b), the roof material A arranged along the portion S2 with one side edge portion is different from the roof material A shown in FIG. A cover portion 1c is formed by cutting the length and then bending the cut side end portion into a substantially L shape on the lower side along the loose portion S2. The cover 1c is arranged so as to cover the cover end of the roof base 6. Moreover, as shown in FIG.8 (c), the roof material A by which one side edge part is arrange | positioned along the trough part S3 is the roof material A shown in FIG. 1, and one side edge part is trough part S3. 1d is formed by folding the cut side end portion back to the back side of the roofing material body 1. The draining portion 1d is formed for waterproofing. Furthermore, as shown in FIG. 8 (d), the roof material A in which one side end portion is arranged along the wall rising portion S4 has a predetermined one side end portion in the roof material A shown in FIG. The wall covering portion 1e is formed by bending the cut side end portion substantially upward at a right angle along the wall rising portion S4. The wall covering portion 1e is arranged so as to cover the lower outer surface of the outer wall base G on the second floor.

本発明において、図９（ａ）に示すように、被係止部４に複数の接触部４ａ、４ｂを設けることができる。一つの接触部４ａは被係止部４の先端で形成することができる。また、もう一つの接触部４ｂは被係止部４の略中央部を横方向の全長にわたって下方に向かってく字状に凸曲するように屈曲し、この屈曲部分の先端で形成することができる。また、係止部５の下片５ｂの基部（屋根材本体１に近い方の端部）には横方向の全長にわたって、下面に開口する断面略逆Ｖ字状の係止溝５ｃが形成されている。 In this invention, as shown to Fig.9 (a), the to-be-latched part 4 can be provided with several contact part 4a, 4b. One contact portion 4 a can be formed at the tip of the locked portion 4. Further, the other contact portion 4b can be formed by bending the substantially central portion of the locked portion 4 so as to be bent downward in a square shape over the entire length in the lateral direction, and at the tip of the bent portion. . Further, a locking groove 5c having a substantially inverted V-shaped cross-section opening on the lower surface is formed over the entire length in the lateral direction at the base of the lower piece 5b of the locking portion 5 (the end close to the roof material body 1). ing.

そして、上記と同様に、屋根材本体１と係止部５の下片５ｂとの間に被係止部４を上下に少し弾性変形させながら差し込んで係止部５と被係止部４とを係止するが、被係止部４の先端側の接触部４ａは下片５ｂの係止溝５ｃに嵌め込まれて係止させ、被係止部４の略中央部の接触部４ｂは屋根材本体１の表面に接触させる。このように接触部４ａの下片５ｂへの接触部分と、接触部４ｂの屋根材本体１への接触部分により、縦方向で隣接する屋根材Ａ、Ａの接続部分に、複数の横方向に長い防水ラインを形成することができ、防水性を高めることができるものである。また、被係止部４は断面略倒く字状に屈曲しているので、バネ性を有するものであり、下片５ｂへの接触部４ａの接触と屋根材本体１への接触部４ｂの接触とを被係止部４の弾性力により強くすることができ、防水ラインを確実に形成することができると共に係止部５と被係止部４の係止を強固にすることができる。 In the same manner as described above, the locked portion 5 and the locked portion 4 are inserted between the roof material main body 1 and the lower piece 5b of the locked portion 5 while being slightly elastically deformed up and down. The contact portion 4a on the distal end side of the locked portion 4 is fitted and locked in the locking groove 5c of the lower piece 5b, and the contact portion 4b at the substantially central portion of the locked portion 4 is the roof. The surface of the material body 1 is brought into contact. Thus, by the contact part to the lower piece 5b of the contact part 4a and the contact part to the roofing material main body 1 of the contact part 4b, in the connection part of the roofing materials A and A adjacent in the vertical direction, a plurality of lateral directions are provided. A long waterproof line can be formed, and waterproofness can be improved. Moreover, since the to-be-latched part 4 is bent in the shape where the cross section is substantially inverted, it has a spring property, and the contact of the contact part 4a to the lower piece 5b and the contact part 4b to the roof material body 1 The contact can be strengthened by the elastic force of the locked portion 4, a waterproof line can be formed reliably, and the locking between the locking portion 5 and the locked portion 4 can be strengthened.

また、図９（ｂ）に示すように、屋根材本体１と係止部５の下片５ｂとの間に被係止部４を差し込んだ後、被係止部４をさらに奥に深く差し込むことができる。この場合、被係止部４の先端側の接触部４ａは係止溝５ｃとの係止から外れるが、その接触部４ａは係止溝５ｃの奥側で下片５ｂに当接し、防水ラインを形成することができ、防水性を低下させないようにすることができる。本発明では、図４（ｄ）に示すように、二つの係止部５と二つの被係止部４とが重なり合う部分が存在するが、上記のように屋根材本体１と係止部５の下片５ｂとの間に被係止部４を差し込んだ後、この被係止部４をさらに奥に深く差し込むことができるので、一つの被係止部４を最初に奥深く差し込んだ後に、次の被係止部４を屋根材本体１と上記差し込み後の被係止部４との間に差し込むようにすることができ、二つの被係止部４を重ね合わせて施工しやすくなるものである。尚、二つの被係止部４を重ね合わせる部分では、二つの被係止部４とも係止溝５ｃには係止されない。 Moreover, as shown in FIG.9 (b), after inserting the to-be-latched part 4 between the roofing material main body 1 and the lower piece 5b of the latching | locking part 5, the to-be-latched part 4 is further inserted deeply. be able to. In this case, the contact portion 4a on the distal end side of the locked portion 4 is disengaged from the locking groove 5c, but the contact portion 4a abuts the lower piece 5b on the back side of the locking groove 5c, and the waterproof line It is possible to prevent the deterioration of waterproofness. In the present invention, as shown in FIG. 4 (d), there are portions where the two locking portions 5 and the two locked portions 4 overlap, but the roof material body 1 and the locking portions 5 as described above. After inserting the locked portion 4 between the lower piece 5b, the locked portion 4 can be inserted deeper into the back, so after inserting one locked portion 4 deeply first, The next locked portion 4 can be inserted between the roof material main body 1 and the locked portion 4 after the insertion, and the two locked portions 4 can be easily overlapped and constructed. It is. In addition, in the part which overlaps the two to-be-latched parts 4, neither of the two to-be-latched parts 4 is latched by the latching groove 5c.

また、本発明において、図１０に示すように、図９のものとは形状の異なる被係止部４を形成することができる。この被係止部４に複数の接触部４ａ、４ｂを設けることができる。一つの接触部４ａは被係止部４の先端で形成することができる。また、もう一つの接触部４ｂは被係止部４の基部で形成することができる。被係止部４は接触部４ｂから少し斜め下方に下り傾斜するように形成されている。そして、上記と同様に、屋根材本体１と係止部５の下片５ｂとの間に被係止部４を上下に少し弾性変形させながら差し込んで係止部５と被係止部４とを係止するが、被係止部４の先端側の接触部４ａは屋根材本体１の表面に接触させ、被係止部４の基部の接触部４ｂはその上面を係止部５の下片５ｂの先端部の下面に接触させる。このように接触部４ａの屋根材本体１への接触部分と、接触部４ｂの下片５ｂへの接触部分により、縦方向で隣接する屋根材Ａ、Ａの接続部分に、複数の横方向に長い防水ラインを形成することができ、防水性を高めることができるものである。また、被係止部４は断面略倒く字状に屈曲しているので、バネ性を有するものであり、屋根材本体１への接触部４ａの接触と下片５ｂへの接触部４ｂの接触とを被係止部４の弾性力により強くすることができ、防水ラインを確実に形成することができると共に係止部５と被係止部４の係止を強固にすることができる。 Moreover, in this invention, as shown in FIG. 10, the to-be-latched part 4 from which a shape differs from the thing of FIG. 9 can be formed. A plurality of contact portions 4 a and 4 b can be provided on the locked portion 4. One contact portion 4 a can be formed at the tip of the locked portion 4. Further, the other contact portion 4 b can be formed at the base portion of the locked portion 4. The locked portion 4 is formed so as to be inclined slightly downward and downward from the contact portion 4b. In the same manner as described above, the locked portion 5 and the locked portion 4 are inserted between the roof material main body 1 and the lower piece 5b of the locked portion 5 while being slightly elastically deformed up and down. The contact portion 4a on the distal end side of the locked portion 4 is brought into contact with the surface of the roof material body 1, and the contact portion 4b of the base portion of the locked portion 4 has its upper surface below the locking portion 5. It is made to contact the lower surface of the front-end | tip part of the piece 5b. Thus, by the contact part to the roofing material main body 1 of the contact part 4a, and the contact part to the lower piece 5b of the contact part 4b, it connects to the connection part of the roofing materials A and A which adjoin in the vertical direction in several horizontal direction. A long waterproof line can be formed, and waterproofness can be improved. Moreover, since the to-be-latched part 4 is bent in the shape in which the cross section is substantially inverted, it has a spring property, and the contact of the contact part 4a to the roof material body 1 and the contact part 4b to the lower piece 5b. The contact can be strengthened by the elastic force of the locked portion 4, a waterproof line can be formed reliably, and the locking between the locking portion 5 and the locked portion 4 can be strengthened.

図１０に示す係止部５と被係止部４とを有する屋根材Ａ、Ａも上記と同様にして縦横に接続することができる。まず、係止部５を上方に伸長した状態で屋根材Ａを屋根下地６に載置し、ビスなどの固定具１１を固定片１０及び屋根下地６に打ち込んで固定片１０を固定する。このように固定片１０を固定することにより、係止部５を上下に収縮して上下寸法（厚み）を小さくした状態で形状を固定（確定）することができる。次に、固定した屋根材Ａに別の屋根材Ａを横方向に並べて載置する。このとき、上記のように、隣接する屋根材Ａ、Ａは横方向にずらした状態で上下に重ね合わせることにより接続する。また、図１１（ａ）に示すように、固定した屋根材Ａの係止部５の表面に新たに配置する方の屋根材Ａの係止部５を被せるようにし、また、固定した屋根材Ａの固定片１０の表面に新たに配置する方の屋根材Ａの固定片１０を被せるようにする。次に、図１１（ｂ）に示すように、新たに配置した屋根材Ａの固定片１０と、固定した屋根材Ａの固定片１０とに固定具１１を打ち込むことによって、新たに配置した屋根材Ａの固定片１０を屋根下地６に固定する。 Roof materials A and A having the locking portion 5 and the locked portion 4 shown in FIG. 10 can also be connected vertically and horizontally in the same manner as described above. First, the roof material A is placed on the roof base 6 with the locking portion 5 extended upward, and a fixing tool 11 such as a screw is driven into the fixing piece 10 and the roof base 6 to fix the fixing piece 10. By fixing the fixing piece 10 in this manner, the shape can be fixed (determined) in a state where the engaging portion 5 is contracted up and down to reduce the vertical dimension (thickness). Next, another roof material A is placed side by side on the fixed roof material A. At this time, as described above, the adjacent roofing materials A and A are connected by being superposed vertically while being shifted in the lateral direction. Moreover, as shown to Fig.11 (a), the roof part A of the roof material A which is newly arrange | positioned is covered on the surface of the latching part 5 of the fixed roof material A, and the fixed roof material The fixed piece 10 of the roof material A to be newly arranged is placed on the surface of the fixed piece 10 of A. Next, as shown in FIG. 11 (b), the newly placed roof is formed by driving the fixture 11 into the newly placed roof material A fixed piece 10 and the fixed roof material A fixed piece 10. The fixed piece 10 of the material A is fixed to the roof base 6.

このようにして横一列に複数枚の屋根材Ａ、Ａ…を敷設した後、これら敷設した屋根材Ａの水上側に他の複数枚の屋根材Ａ、Ａ…を横一列に順次敷設していく。このとき、図１１（ｃ）に示すように、水上側の屋根材Ａの被係止部４を水下側の屋根材（上側に被せた屋根材）Ａの屋根材本体１と係止部５との間に挿入し、挿入した被係止部４を係止部５の下面に係止する。この後、図１１（ｄ）に示すように、さらに他の水上側の屋根材Ａの被係止部４を上記水上側の屋根材Ａの被係止部４と水下側の屋根材Ａの屋根材本体１との間に挿入することによって水下側の屋根材Ａの係止部５に係止する。このように、縦方向と横方向に四枚の屋根材Ａが隣接する箇所では、最終的に二つの被係止部４、４と二つの係止部５、５とが重なった状態となる。このようにして複数枚の屋根材Ａを縦横に敷設することによって、屋根を形成することができる。 In this way, after laying a plurality of roofing materials A, A ... in a horizontal row, another plurality of roofing materials A, A ... are sequentially laid in a horizontal row above the laid roofing material A. Go. At this time, as shown in FIG. 11 (c), the locked portion 4 of the roof material A on the upper side is connected to the roof material main body 1 and the locked portion of the roof material A (the roof material covered on the upper side) A. The inserted locked portion 4 is locked to the lower surface of the locking portion 5. After that, as shown in FIG. 11 (d), the locked portion 4 of the other roof material A on the upper side is replaced with the locked portion 4 of the roof material A on the upper side and the roof material A on the lower side. By being inserted between the roof material main body 1 and the roof material body 1, the water is locked to the locking portion 5 of the roof material A on the underwater side. Thus, in the location where the four roof materials A are adjacent to each other in the vertical direction and the horizontal direction, the two locked portions 4 and 4 and the two locking portions 5 and 5 are finally overlapped. . In this way, a roof can be formed by laying a plurality of roof materials A vertically and horizontally.

本発明において、屋根材Ａの側端縁部１ａは裏面側に補強片１ｂを折返し屈曲して二重の金属板で形成するものであり、これにより、屋根材Ａの側端縁部１ａの剛性を高めることができ、横方向に隣接する屋根材Ａ、Ａの接続部分（横継ぎ部分）における側端縁部１ａの変形による隙間形成（口開き）を小さくすることができるものである。この場合、図１２（ａ）のように、金属板の端部を補強片１ｂとして１回折り返して側端縁部１ａを形成するよりも、図１２（ｂ）に示すように、金属板の端部を１回折り返して補強片１ｂを形成し、さらに、補強片１ｂがく字状となるように途中でもう１回屈曲するものであり、これにより、屋根材Ａの側端縁部１ａの剛性をさらに高めることができる。 In the present invention, the side edge 1a of the roofing material A is formed of a double metal plate by folding the reinforcing piece 1b back to the back side, and thereby the side edge 1a of the roofing material A is formed. Rigidity can be increased, and gap formation (opening) due to deformation of the side edge portion 1a in the connecting portion (transverse joint portion) of the roof materials A, A adjacent in the lateral direction can be reduced. In this case, as shown in FIG. 12 (b), as shown in FIG. 12 (b), the end of the metal plate is bent once as a reinforcing piece 1b to form the side edge 1a. The end portion is folded once to form the reinforcing piece 1b, and the reinforcing piece 1b is bent once again in the middle so that the reinforcing piece 1b has a square shape. The rigidity can be further increased.

本発明において、屋根材本体１の側端縁部１ａからその側端縁部１ａに最も近い突起部２までの寸法を大きくするのが好ましい。この種の屋根材Ａでは、局所的に荷重がかかると（例えば施工時に踏んでしまう）、塑性変形する可能性があった。しかし、屋根材本体１の側端縁部１ａからその側端縁部１ａに最も近い突起部２までの寸法（曲げ幅）を広くとり、大面積で荷重を受けることで、踏まれても金属板のスプリングバックにより、復元することができる（弾性変形に留まる）。従って、横方向に隣接する屋根材Ａ、Ａの接続部分（横継ぎ部分）における側端縁部１ａの変形による隙間形成（口開き）を小さくすることができ、また、風荷重を受けた場合は踏まれた場合とは逆方向(下から上へ)に力が働くため、横方向に隣接する屋根材Ａ、Ａの側端部を重ね合わせた時に上側の屋根材Ａが上側に撓み口開きしやすくなるが、これを曲げ幅を広く取ることで復元しやすくなって口開きを少なくすることができる。図１３（ａ）に示すような寸法（単位はｍｍ）を有する屋根材Ａにおいて、図１３（ｂ）（ｃ）に示すように、屋根材本体１の側端縁部１ａから約３０ｍｍまでの側端部を裏面側に向かって緩やかに下り傾斜する傾斜部１ｃとして形成するのが好ましい。尚、図３に示すものにおいては、屋根材本体１の側端縁部１ａからその側端縁部１ａに最も近い突起部２までの寸法が約６ｍｍであって、急角度で屈曲されている。 In this invention, it is preferable to enlarge the dimension from the side edge part 1a of the roofing material main body 1 to the projection part 2 nearest to the side edge part 1a. In this type of roofing material A, when a load is locally applied (for example, it is stepped on during construction), there is a possibility of plastic deformation. However, even if it is stepped on, it has a large dimension (bending width) from the side edge 1a of the roofing material body 1 to the projection 2 closest to the side edge 1a and receives a load in a large area. It can be restored by the spring back of the plate (it remains elastically deformed). Therefore, the gap formation (opening) due to the deformation of the side edge portion 1a in the connecting portion (transverse joint portion) of the roofing materials A, A adjacent in the lateral direction can be reduced, and when receiving a wind load Since the force works in the opposite direction (from bottom to top) when stepped on, the roof material A on the upper side is bent upward when the side edges of the roof materials A and A adjacent in the lateral direction are overlapped. Although it becomes easy to open, it can be easily restored by reducing the bending width, and the opening of the mouth can be reduced. In the roofing material A having a dimension (unit: mm) as shown in FIG. 13A, as shown in FIGS. 13B and 13C, from the side edge 1a of the roofing material body 1 to about 30 mm. It is preferable to form the side end portion as an inclined portion 1c that gently slopes downward toward the back side. In addition, in the thing shown in FIG. 3, the dimension from the side edge part 1a of the roof material main body 1 to the projection part 2 nearest to the side edge part 1a is about 6 mm, and is bent at a steep angle. .

そして、本発明の屋根材Ａでは、隣接する屋根材Ａ、Ａの重ね合わせ寸法（葺き足）を自由自在に調整できるため、平面部からけらば部、降り棟部、壁立ち上げ部において、寸法調整のため屋根材本体１を切断することなく施工できる。従って、現場において、寸法合わせにこだわることなく端部曲げ加工した後、重ね合わせ寸法を調整することで、大幅な施工性向上が図れるものである。また、本発明では、切断作業がなくなるので、現場で廃材を極力出さない工法となるものである。短尺品の屋根材Ａの場合、切断が必要となるが、これも工場で長さ調整しておけば現場では切断の必要がなくなり、廃材無しを可能とできるものである。また、けらば部、降り棟部、壁立ち上げ部等で使用される屋根材Ａは、事前に加工し現地納入することで現地作業の手間を省き、更に施工性向上を図ることができる。また、本発明の屋根材Ａはシンプルでフラットに近い形状のため、棟部において、屋根材Ａを棟ラインを支点に曲げることで、切断することなく施工できる。また、本発明の屋根材Ａの形状はシンプルなので、板金作業（不要部切り落とし）後に加工する必要がなくなり作業性の向上を図ることができるものである。また、本発明の屋根材Ａの長さを一定としても、現場採寸が必要なく屋根面積と重ね合わせ代分を考慮した数量を発注することで対応することができ、見積もり積算作業も容易となる。また、本発明の屋根材Ａは左右対称であり、左右どちらからでも葺くことができ、しかも、半分に切断した場合でもけらば部や降り棟部に納めることで、切断面を表面に出すことなく納めることができ、重ね代を余分に取ることなく、効率よく葺くことができるものである。また、降り棟部や棟部の納め部材（カバー材）もへの字のシンプルな形状となり、交差部や継ぎ部の納めもそのまま重ね、屋根材Ａと同じく長さ調整できるため、現場加工を極力少なくすることができるものである。 And in the roofing material A of the present invention, since the overlapping dimension (spreading foot) of the adjacent roofing materials A, A can be freely adjusted, in the gap portion from the plane portion, the descending ridge portion, the wall rising portion, Construction can be performed without cutting the roofing material body 1 for dimensional adjustment. Therefore, the workability can be greatly improved by adjusting the overlapping dimension after bending the end portion without focusing on the dimension adjustment at the site. Further, in the present invention, since there is no cutting work, it is a construction method that generates as little waste as possible on site. In the case of the short roof material A, cutting is necessary. However, if the length is also adjusted at the factory, cutting is not necessary at the site, and no waste material can be obtained. In addition, the roofing material A used in the crushed part, the descending ridge part, the wall raising part, etc. can be processed in advance and delivered to the site, so that the labor of the field work can be saved and the workability can be further improved. Moreover, since the roof material A of the present invention has a simple and nearly flat shape, the roof material A can be constructed without cutting by bending the roof material A around the ridge line in the ridge. In addition, since the shape of the roof material A of the present invention is simple, it is not necessary to process after sheet metal work (unnecessary portion cutting), and workability can be improved. Moreover, even if the length of the roofing material A of the present invention is fixed, it is possible to cope with the order by placing a quantity considering the roof area and the overlap allowance without the need for on-site measurement, and facilitating estimation and integration work. . Moreover, the roofing material A of the present invention is bilaterally symmetric and can be sown from either the left or right side, and even when cut in half, it can be put in a loose part or a descending ridge part to bring the cut surface to the surface. It can be stored without any additional cost, and can be efficiently sown without taking up an extra allowance. In addition, the receiving member (cover material) of the descending ridge part and the ridge part also has a simple shape, and the storage of the intersections and joints can be overlapped as it is, and the length can be adjusted in the same way as the roofing material A. It can be reduced as much as possible.

Ａ屋根材
Ｓ１隅棟部
Ｓ２けらば部
Ｓ３谷部
Ｓ４壁立ち上げ部
１屋根材本体
１ａ側端縁部
２突起部
３位置決め部
４被係止部
４ａ接触部
４ｂ接触部
５係止部

A roofing material S1 corner ridge part S2 flared part S3 valley part S4 wall rising part 1 roofing material main body 1a side edge part 2 projection part 3 positioning part 4 locked part 4a contact part 4b contact part 5 locking part

Claims

A substantially flat roof material body is disposed adjacent to each other, and a side edge of one roof material body is laid on top of the other roof material body, and the side edge of the roof material body is A roofing material, wherein the roofing material is formed by being folded back and bent to provide a reinforcing piece to be doubled and bent so that the reinforcing piece has a square shape.