JP6894618B1 - How to arrange the roofing material of the long horizontal roofing module roofing material for remodeling - Google Patents

How to arrange the roofing material of the long horizontal roofing module roofing material for remodeling Download PDF

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JP6894618B1
JP6894618B1 JP2020126168A JP2020126168A JP6894618B1 JP 6894618 B1 JP6894618 B1 JP 6894618B1 JP 2020126168 A JP2020126168 A JP 2020126168A JP 2020126168 A JP2020126168 A JP 2020126168A JP 6894618 B1 JP6894618 B1 JP 6894618B1
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小栗　和彦
和彦 小栗
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Abstract

【課題】本発明はリフォーム用長尺横葺き屋根材の配置方法における技術であり、従来のリフォーム用長尺横葺き屋根材の配置方法は、現場合わせでの屋根材の割り付け及び加工の為、施工に手間が掛かるという課題があった。【解決手段】本発明のリフォーム用長尺横葺き屋根材の屋根への配置方法は、既存屋根材の上にカバー屋根材を配置する配置方法であり、カバー屋根材の働き長さの水平投影寸法が建物の設計単位寸法の整数分の一で、働き幅寸法が働き長さの水平投影寸法の二倍以上の整数倍で、軒先に既存屋根材を覆うカバー軒先部材を設け、カバー軒先部材に水平投影葺き始め設定範囲を有し、カバー屋根材の水平投影葺き始め位置は水平投影棟際寸法にカバー屋根材の働き長さの水平投影寸法の整数倍を加え、かつカバー軒先部材の水平投影葺き始め設定範囲内とし、屋根端部に規格化した形状のカバー屋根材を配置することで、従来技術が有する課題を解決する。【選択図】 図１PROBLEM TO BE SOLVED: To provide a technique for arranging a long horizontal roofing material for remodeling, and a conventional method for arranging a long horizontal roofing material for remodeling is to allocate and process a roofing material according to the site. There was a problem that it took time and effort for construction. SOLUTION: The method of arranging a long horizontal roofing material for reform on a roof of the present invention is a method of arranging a cover roofing material on an existing roofing material, and a horizontal projection of the working length of the cover roofing material. The size is an integral fraction of the design unit size of the building, the working width dimension is an integral multiple of more than twice the horizontal projection dimension of the working length, and a cover eaves member that covers the existing roofing material is provided at the eaves. Has a horizontal projection roofing start setting range, and the horizontal projection roofing start position of the cover roofing material is the horizontal projection ridge edge dimension plus an integral multiple of the horizontal projection dimension of the working length of the cover roofing material, and the horizontal of the cover eaves member. The problem of the prior art is solved by setting the projection roofing start within the set range and arranging the cover roofing material having a standardized shape at the roof edge. [Selection diagram] Fig. 1

Description

本発明は、リフォーム用長尺横葺き屋根材の屋根への配置方法であり、勾配を有する屋根を備える建物の屋根であって、既存屋根材の上にカバー屋根材を桁方向に複数枚並べ、前記カバー屋根材を段方向に複数段並べる前記屋根において、前記カバー屋根材の働き長さの水平投影寸法が前記建物の設計単位寸法の整数分の一であり、前記カバー屋根材の働き幅寸法が前記働き長さの水平投影寸法の二倍以上の整数倍であり、前記屋根の軒先に既存屋根材を覆うカバー軒先部材を設け、前記カバー軒先部材は、前記カバー屋根材の流れ方向における水平投影葺き始め位置を設定するための水平投影葺き始め設定範囲を有し、前記水平投影葺き始め設定範囲は、前記カバー屋根材の働き長さの水平投影寸法とし、前記カバー屋根材の流れ方向における前記水平投影葺き始め位置は、陸棟芯を基準にして、水平投影棟際寸法に前記カバー屋根材の働き長さの水平投影寸法の整数倍を加え、かつ前記カバー軒先部材の前記水平投影葺き始め設定範囲の範囲内の位置とし、陸棟部、隅棟部、ケラバ部、壁際部、三又部、陸棟曲がり部、谷部などの屋根端部に規格化した形状のカバー屋根材を配置する。 The present invention is a method of arranging a long horizontal roofing material for reform on a roof, which is a roof of a building having a sloped roof, in which a plurality of cover roofing materials are arranged in the girder direction on the existing roofing material. In the roof in which the cover roofing materials are arranged in a plurality of stages in the step direction, the horizontal projection dimension of the working length of the cover roofing material is one integral of the design unit dimension of the building, and the working width of the cover roofing material. The dimension is an integral multiple of twice or more the horizontal projection dimension of the working length, a cover eaves member covering the existing roof material is provided on the eaves of the roof, and the cover eaves member is in the flow direction of the cover roof material. It has a horizontal projection roofing start setting range for setting the horizontal projection roofing start position, and the horizontal projection roofing start setting range is the horizontal projection dimension of the working length of the cover roofing material, and the flow direction of the cover roofing material. The horizontal projection roofing start position in is obtained by adding an integral multiple of the horizontal projection dimension of the working length of the cover roofing material to the horizontal projection ridge edge dimension with reference to the land ridge core, and the horizontal projection roofing start position of the cover eaves member. The position is within the set range, and standardized cover roofing materials are placed at the roof edges such as the land ridge, corner ridge, keraba, wall edge, three-pronged, land ridge bend, and valley.

従来技術の特許文献１には、特開平８−１０９７０８号の瓦及び瓦葺き方法がある。この特許文献では、主に新築の屋根において、専門の職人でなくとも簡単に葺くことのできる瓦及び瓦葺き方法を提供すること。又、葺くときや修理するときに瓦の上を歩き易く、雨水が漏れ難いし、美麗な瓦及び瓦葺き方法を提供する。モジュール長さを１辺とする正方形の瓦本体部と、この水上側の上方接続部と、一側の側方接続部とからなる桟瓦１と、瓦本体部と上方接続部と側方接続部と隅瓦接続部とからなる両桟瓦３と、瓦本体部の半分の半瓦本体部と上方接続部と側方接続部とからなる半瓦２と、半瓦本体部と上方接続部と側方接続部と隅瓦接続部とからなる両桟半瓦４と、瓦本体部の対角線で切断された谷瓦本体部と隅瓦接続部とからなる谷瓦５と、谷瓦本体部と上方接続部と側方接続部とからなる側方接続部付き谷瓦６と、瓦本体部が対角線で折曲された廻り隅瓦７とからなる瓦及びこの瓦の葺き方法という提案がされている。 Patent Document 1 of the prior art includes a roof tile and a roofing method of Japanese Patent Application Laid-Open No. 8-109708. This patent document provides tiles and roofing methods that can be easily roofed by non-specialized craftsmen, mainly on newly built roofs. It also provides a beautiful roof tile and roofing method that makes it easy to walk on the roof tiles when roofing or repairing, and prevents rainwater from leaking. A square roof tile body having a module length as one side, an upper connection part on the water side, a crosspiece 1 consisting of a side connection part on one side, a tile body part, an upper connection part, and a side connection part. Double roof tile 3 consisting of a roof tile main body and a corner tile connection part, a half roof tile 2 consisting of a half roof tile main body part, an upper connection part and a side connection part, and a half roof tile main body part and an upper connection part and a side. Both crosspiece half tiles 4 consisting of a square connection part and a corner tile connection part, a valley tile 5 consisting of a valley tile body part and a corner tile connection part cut diagonally of the roof tile body part, and a valley tile body part and above. A proposal has been made for a roof tile consisting of a valley tile 6 with a side connecting portion consisting of a connecting portion and a side connecting portion, and a peripheral corner tile 7 in which the tile main body is bent diagonally, and a roofing method for this tile. ..

特開特開平８−１０９７０８号公報Japanese Unexamined Patent Publication No. 8-109708

特許文献１では瓦本体部（はたらき面）は葺いたときの水平面への投影形状が建物の単位寸法の整数分の一（モジュール）にほぼ等しい長さを１辺とする正方形であるから、この瓦本体部を整数個並べて葺くと建物の単位寸法にほぼ合致する。そして、建物の柱は単位寸法に合わせて設けられ、谷や隅棟はこの柱を通過し、水平面への投影形状が壁面から４５°傾斜した傾斜線に沿って設けられるから、瓦を隅棟と隅棟との間に葺く場合には、最初の瓦が瓦本体部であれば最後の瓦が瓦本体部になり、最初の瓦が半瓦本体部であれば最後の瓦が半瓦本体部となる。又、隅棟と谷との間に葺く場合には、谷部分に半瓦本体部の長さだけ開ける必要があるから、最初の瓦が瓦本体部（または半瓦本体部）であれば最後の瓦が半瓦本体部（または瓦本体部）となる。又、谷と谷との間に葺く場合には、両方の谷部分に半瓦本体部の長さだけ開けるから、最初の瓦が瓦本体部であれば最後の瓦が瓦本体部となり、最初の瓦が半瓦本体部であれば最後の瓦が半瓦本体部となる。このように、瓦の割り付けが極めて簡単に出来るという効果を発揮する。 In Patent Document 1, the roof tile main body (working surface) is a square whose one side is a length whose projected shape on the horizontal plane when thatched is approximately equal to an integral fraction (module) of the unit dimension of the building. When an integer number of roof tiles are lined up and thatched, they almost match the unit dimensions of the building. Then, the pillars of the building are provided according to the unit dimensions, the valleys and corner ridges pass through these pillars, and the projected shape on the horizontal plane is provided along the slope line inclined by 45 ° from the wall surface. When roofing between the roof and the corner ridge, if the first tile is the tile body, the last tile will be the tile body, and if the first tile is the half tile body, the last tile will be the half tile. It becomes the main body. Also, when roofing between the corner ridge and the valley, it is necessary to open the valley part by the length of the half-tile body, so if the first tile is the tile body (or half-tile body) The last tile becomes the half-tile body (or tile body). Also, when roofing between valleys, only the length of the half-tile body is opened in both valleys, so if the first tile is the tile body, the last tile will be the tile body. If the first tile is the half-tile body, the last tile is the half-tile body. In this way, the effect of allocating roof tiles is extremely easy.

しかし、特許文献１の屋根材は建物の単位寸法の整数分の一（モジュール）にほぼ等しい長さを１辺とする正方形形状であり、屋根面に割り付けるのに多くの屋根材を配置する必要があり、屋根材の施工に手間が掛かるという課題があった。
また、特許文献１は、屋根材を建物の単位寸法で割り付けるためには軒の出寸法を建物の単位寸法で設計する必要があり、既存の屋根を利用して既存の屋根材の上にカバー工法を行う場合には、建物の軒の出寸法を建物の単位寸法で作り直さなければ割付が出来ないという課題があった。
寄棟屋根の陸棟際の端部は三又部や陸棟曲がり部などの瓦の納まりがあるが、特許文献１では三又部や陸棟曲がり部と言った部位での専用の瓦の設定は無く、現場で職人が加工する必要があり、この部位での瓦の加工は難しく、現場での施工に手間が掛かるという課題があった。
瓦の配置方法においては流れ方向にて一段飛ばしで瓦本体と半瓦とを交互に配置するというルールが必要であり、瓦の割り付けにおいてもルールが煩雑で手間が掛かるという課題があった。
さらに、桟瓦だけでなく両桟瓦、半瓦、両桟半瓦、谷瓦、側方接続部付き谷瓦、廻り隅瓦といった多数の専用瓦の設定が必要であり、多品種小ロット生産方式でないと生産が出来ないことによる生産効率が悪いという課題と、多くの品目を在庫管理しなければならないことによる在庫負担の増大などという課題があった。 However, the roofing material of Patent Document 1 has a square shape having a length approximately equal to an integral fraction (module) of the unit dimension of the building as one side, and it is necessary to arrange many roofing materials to allocate to the roof surface. There was a problem that it took time and effort to construct the roofing material.
Further, in Patent Document 1, in order to allocate the roofing material by the unit dimension of the building, it is necessary to design the protruding dimension of the eaves by the unit dimension of the building, and the existing roof is used to cover the existing roofing material. When the construction method is carried out, there is a problem that allocation cannot be performed unless the eaves of the building are remade with the unit dimensions of the building.
At the end of the hipped roof near the land ridge, there are tiles such as the three-pronged part and the bent part of the land ridge, but in Patent Document 1, the setting of the dedicated roof tile at the three-pronged part and the bent part of the land ridge is There was a problem that it was necessary for a craftsman to process the roof tiles on site, and it was difficult to process the roof tiles at this site, and it took time and effort to construct the roof tiles on site.
In the method of arranging the roof tiles, it is necessary to have a rule that the roof tile body and the half roof tile are arranged alternately by skipping one step in the flow direction, and there is a problem that the rule is complicated and time-consuming even in the allocation of the roof tile.
Furthermore, it is necessary to set a large number of dedicated roof tiles such as both roof tiles, half roof tiles, half roof tiles, valley roof tiles, valley roof tiles with side connections, and corner tiles in addition to the roof tiles, which is not a high-mix, small-lot production method. There were problems such as poor production efficiency due to the inability to produce and an increase in inventory burden due to the need to manage the inventory of many items.

本発明のリフォーム用長尺横葺き屋根材の屋根への配置方法は、勾配を有する屋根を備える建物の屋根であって、既存屋根材の上にカバー屋根材を桁方向に複数枚並べ、前記カバー屋根材を段方向に複数段並べる前記屋根において、前記カバー屋根材の働き長さの水平投影寸法が前記建物の設計単位寸法の整数分の一であり、前記カバー屋根材の働き幅寸法が前記働き長さの水平投影寸法の二倍以上の整数倍であり、前記屋根の軒先に既存屋根材を覆うカバー軒先部材を設け、前記カバー軒先部材は、前記カバー屋根材の流れ方向における水平投影葺き始め位置を設定するための水平投影葺き始め設定範囲を有し、前記水平投影葺き始め設定範囲は、前記カバー屋根材の働き長さの水平投影寸法とし、前記カバー屋根材の流れ方向における前記水平投影葺き始め位置は、陸棟芯を基準にして、水平投影棟際寸法に前記カバー屋根材の働き長さの水平投影寸法の整数倍を加え、かつ前記カバー軒先部材の前記水平投影葺き始め設定範囲の範囲内の位置とし、陸棟部、隅棟部、ケラバ部、壁際部、三又部、陸棟曲がり部、谷部などの屋根端部に規格化した形状のカバー屋根材を配置することで、従来技術が有する課題を解決する。 The method of arranging the long horizontal roofing material for reform on the roof of the present invention is the roof of a building having a sloped roof, and a plurality of cover roofing materials are arranged in the girder direction on the existing roofing material. In the roof in which a plurality of cover roofing materials are arranged in a step direction, the horizontal projection dimension of the working length of the cover roofing material is an integral fraction of the design unit size of the building, and the working width dimension of the cover roofing material is A cover eaves member that covers the existing roof material is provided on the eaves of the roof, which is an integral multiple of twice or more the horizontal projection dimension of the working length, and the cover eaves member is horizontally projected in the flow direction of the cover roof material. It has a horizontal projection roofing start setting range for setting the roofing start position, and the horizontal projection roofing start setting range is the horizontal projection dimension of the working length of the cover roofing material, and the above-mentioned in the flow direction of the cover roofing material. The horizontal projection roofing start position is set by adding an integral multiple of the horizontal projection dimension of the working length of the cover roofing material to the horizontal projection ridge edge dimension with reference to the land ridge core, and the horizontal projection roofing start setting range of the cover eaves member. By arranging a standardized cover roofing material at the roof edge such as the land ridge, corner ridge, keraba, wall edge, three-pronged part, land ridge bend, valley, etc. Solve the problems of the prior art.

請求項１記載の本発明のリフォーム用長尺横葺きモジュール屋根材の屋根材配置方法は、勾配を有する屋根を備える建物の屋根であって、既存屋根材の上にカバー屋根材を桁方向に複数枚並べ、前記カバー屋根材を段方向に複数段並べる前記屋根において、前記カバー屋根材の働き長さの水平投影寸法が前記建物の設計単位寸法の整数分の一であり、前記カバー屋根材の働き幅寸法が前記働き長さの水平投影寸法の二倍以上の整数倍であり、前記屋根の軒先に既存屋根材を覆うカバー軒先部材を設け、前記カバー軒先部材は、前記カバー屋根材の流れ方向における水平投影葺き始め位置を設定するための水平投影葺き始め設定範囲を有し、前記水平投影葺き始め設定範囲は、前記カバー屋根材の働き長さの水平投影寸法とし、前記カバー屋根材の流れ方向における前記水平投影葺き始め位置は、陸棟芯を基準にして、水平投影棟際寸法に前記カバー屋根材の働き長さの水平投影寸法の整数倍を加え、かつ前記カバー軒先部材の前記水平投影葺き始め設定範囲の範囲内の位置とし、陸棟部、隅棟部、ケラバ部、壁際部、三又部、陸棟曲がり部、谷部などの全ての屋根端部に規格化した形状のカバー屋根材を配置することを特徴とする。 The method for arranging the roofing material of the long horizontal roofing module roofing material for reform according to claim 1 is the roof of a building having a sloped roof, and the cover roofing material is placed on the existing roofing material in the girder direction. In the roof in which a plurality of sheets are arranged and the cover roofing materials are arranged in a plurality of stages in the step direction, the horizontal projection dimension of the working length of the cover roofing material is an integral fraction of the design unit dimension of the building, and the cover roofing material. The working width dimension of is an integral multiple of twice or more the horizontal projection dimension of the working length, a cover eaves member covering the existing roofing material is provided on the eaves of the roof, and the cover eaves member is the cover roofing material. It has a horizontal projection roofing start setting range for setting the horizontal projection roofing start position in the flow direction, and the horizontal projection roofing start setting range is the horizontal projection dimension of the working length of the cover roofing material, and the cover roofing material. The horizontal projection roofing start position in the flow direction of the roof is obtained by adding an integral multiple of the horizontal projection dimension of the working length of the cover roofing material to the horizontal projection ridge edge dimension with reference to the land ridge core, and the horizontal of the cover eaves member. A cover roof with a standardized shape for all roof edges such as the land ridge, corner ridge, keraba, wall edge, three-pronged part, land ridge bend, valley, etc. It is characterized by arranging materials.

請求項２記載の本発明は、請求項１に記載のリフォーム用長尺横葺きモジュール屋根材の屋根材配置方法において、前記屋根は隅棟又は谷を有し、前記カバー屋根材を前記軒先から陸棟にむかって流れ方向で一段毎に配置する際に、前記カバー屋根材は配置する屋根面の桁方向に対して一方の端部からもう一方の端部方向に前記カバー屋根材の働き長さの水平投影寸法の整数倍をずらして配置することを特徴とする。 According to the second aspect of the present invention, in the method for arranging the roofing material of the long horizontal roofing module roofing material for reform according to the first aspect, the roof has a corner ridge or a valley, and the cover roofing material is provided from the eaves. When arranging the cover roofing material step by step in the flow direction toward the land ridge, the working length of the cover roofing material is from one end to the other end with respect to the girder direction of the roof surface to be arranged. It is characterized in that the roofs are arranged so as to be offset by an integral multiple of the horizontal projection dimension.

請求項３記載の本発明は、請求項２に記載のリフォーム用長尺横葺きモジュール屋根材の屋根材配置方法において、前記カバー屋根材を前記軒先から前記陸棟にむかって流れ方向で一段毎に配置する際に、前記カバー屋根材は配置する屋根面の桁方向に対して一方の端部からもう一方の端部方向に前記カバー屋根材の働き長さの水平投影寸法をずらして配置することを特徴とする。 According to the third aspect of the present invention, in the method for arranging the roofing material of the long horizontal roofing module roofing material for reform according to the second aspect, the cover roofing material is placed step by step in the flow direction from the eaves to the land ridge. When arranging the cover roofing material in, the cover roofing material is arranged by shifting the horizontal projection dimension of the working length of the cover roofing material from one end to the other end with respect to the girder direction of the roof surface to be arranged. It is characterized by that.

請求項４記載の本発明は、請求項２又は請求項３のいずれか記載のリフォーム用長尺横葺きモジュール屋根材の屋根材配置方法において、前記屋根面における桁方向の寸法調整に用いるカバー調整屋根材の働き幅寸法は、前記カバー屋根材の働き長さの水平投影寸法の整数倍であり、前記カバー調整屋根材を前記カバー屋根材の代わりに配置することで働き幅寸法の差分により前記桁方向の寸法調整を行うことを特徴とする。 The present invention according to claim 4 is a cover adjustment used for dimension adjustment in the girder direction on the roof surface in the roofing material arrangement method for a long horizontal roofing module roofing material for reform according to any one of claims 2 and 3. The working width dimension of the roofing material is an integral multiple of the horizontal projection dimension of the working length of the cover roofing material, and by arranging the cover adjusting roofing material in place of the cover roofing material, the difference in the working width dimension is used. It is characterized by adjusting the dimensions in the girder direction.

請求項５記載の本発明は、請求項４に記載のリフォーム用長尺横葺きモジュール屋根材の屋根材配置方法において、前記カバー調整屋根材は複数種類の働き幅寸法を設け、異なる種類の働き幅寸法を有する前記カバー調整屋根材を組み合わせて配置することで前記桁方向の寸法調整を行うことを特徴とする。 According to the fifth aspect of the present invention, in the method for arranging the roofing material of the long horizontal roofing module roofing material for reform according to the fourth aspect, the cover adjusting roofing material is provided with a plurality of types of working width dimensions and different types of working. It is characterized in that the dimension adjustment in the girder direction is performed by arranging the cover adjustment roofing material having a width dimension in combination.

請求項６記載の本発明は、請求項１から請求項５までのいずれか記載のリフォーム用長尺横葺きモジュール屋根材の屋根材配置方法において、前記隅棟部に配置する前記規格化した形状のカバー屋根材の働き幅寸法は、前記カバー屋根材の働き長さの水平投影寸法の二倍であることを特徴とする。 The present invention according to claim 6 is the standardized shape to be arranged in the corner ridge portion in the method for arranging the roofing material of the long horizontal roofing module roofing material for reform according to any one of claims 1 to 5. The working width dimension of the cover roofing material is twice the horizontal projection dimension of the working length of the cover roofing material.

本発明によれば、勾配を有する屋根を備える建物の屋根であって、既存屋根材の上にカバー屋根材を桁方向に複数枚並べ、前記カバー屋根材を段方向に複数段並べる前記屋根において、前記カバー屋根材の働き長さの水平投影寸法が前記建物の設計単位寸法の整数分の一であり、前記カバー屋根材の働き幅寸法が前記働き長さの水平投影寸法の二倍以上の整数倍であり、前記屋根の軒先に既存屋根材を覆うカバー軒先部材を設け、前記カバー軒先部材は、前記カバー屋根材の流れ方向における水平投影葺き始め位置を設定するための水平投影葺き始め設定範囲を有し、前記水平投影葺き始め設定範囲は、前記カバー屋根材の働き長さの水平投影寸法とし、前記カバー屋根材の流れ方向における前記水平投影葺き始め位置は、陸棟芯を基準にして、水平投影棟際寸法に前記カバー屋根材の働き長さの水平投影寸法の整数倍を加え、かつ前記カバー軒先部材の前記水平投影葺き始め設定範囲の範囲内の位置とし、陸棟部、隅棟部、ケラバ部、壁際部、三又部、陸棟曲がり部、谷部などの屋根端部に規格化した形状のカバー屋根材を配置することで、軒の出寸法が前記建物の設計単位寸法で作られていない既存屋根材が葺かれている屋根においても、前記建物の設計単位寸法と連動したカバー屋根材の配置が可能となり、陸棟部、隅棟部、ケラバ部、壁際部、三又部、陸棟曲がり部、谷部など全ての屋根端部においてカバー屋根材の配置がルール化出来る。その結果全ての屋根端部において規格化した形状のカバー屋根材を設定し配置することが出来る。
また、前記カバー屋根材を長尺化することで横方向での施工枚数の減少により施工性を上げることが出来る。
さらに、規格化した形状のカバー屋根材は、前記カバー屋根材をプレカット加工により生産することが可能となり、高い生産性で生産することが出来る。 According to the present invention, in the roof of a building provided with a sloped roof, a plurality of cover roofing materials are arranged in a girder direction on the existing roofing material, and the cover roofing materials are arranged in a plurality of stages in a step direction. The horizontal projection dimension of the working length of the cover roofing material is an integral fraction of the design unit size of the building, and the working width dimension of the cover roofing material is at least twice the horizontal projection dimension of the working length. A cover eaves member that covers the existing roofing material is provided on the eaves of the roof, which is an integral multiple, and the cover eaves member is set to start horizontal projection roofing in the flow direction of the cover roofing material. It has a range, the horizontal projection roofing start setting range is the horizontal projection dimension of the working length of the cover roofing material, and the horizontal projection roofing start position in the flow direction of the cover roofing material is based on the land ridge core. Add an integral multiple of the horizontal projection dimension of the working length of the cover roofing material to the horizontal projection ridge dimension, and set the position within the range of the horizontal projection roofing start setting range of the cover eaves member, and set the land ridge, corner ridge, etc. By arranging a standardized cover roofing material on the roof edge such as the keraba part, wall edge part, three-pronged part, land ridge bend part, valley part, the eaves protrusion dimension is made with the design unit dimension of the building. Even on roofs that are covered with existing roofing materials that have not been installed, it is possible to arrange cover roofing materials that are linked to the design unit dimensions of the building, and land ridges, corner ridges, kerabas, wall edges, three-pronged parts, and land. Arrangement of cover roofing materials can be made into rules at all roof edges such as ridge bends and valleys. As a result, it is possible to set and arrange a cover roofing material having a standardized shape at all roof edges.
Further, by lengthening the cover roofing material, the workability can be improved by reducing the number of works to be carried out in the lateral direction.
Further, the standardized shape of the cover roofing material can be produced by pre-cutting the cover roofing material, and can be produced with high productivity.

本発明の実施例による寄棟屋根面のカバー屋根材の割付図及び流れ方向の施工断面図Allocation diagram of the cover roofing material of the hipped roof surface and the construction sectional view in the flow direction according to the embodiment of the present invention. 本発明の実施例による軒先部における流れ方向の施工断面図Construction cross-sectional view in the flow direction at the eaves according to the embodiment of the present invention 本発明の実施例による寄棟切妻混合屋根のカバー屋根材の割付図Allocation diagram of the cover roofing material of the hipped gable mixed roof according to the embodiment of the present invention. 本発明の実施例によるカバー軒先部材の投影図Projection drawing of the cover eaves member according to the embodiment of the present invention 本発明の実施例によるカバー軒先部材の斜視図Perspective view of the cover eaves member according to the embodiment of the present invention. 本発明の実施例によるカバー屋根材の投影図及び施工断面図Projection drawing and construction sectional view of cover roofing material according to embodiment of this invention 本発明の実施例によるカバー屋根材の斜視図Perspective view of the cover roofing material according to the embodiment of the present invention. 本発明の実施例による規格化形状屋根材及びカバー調整屋根材の斜視図Perspective view of standardized shape roofing material and cover adjusting roofing material according to the embodiment of the present invention.

本発明の第１の実施の形態における長尺横葺きモジュール屋根材の屋根材配置方法は、勾配を有する屋根を備える建物の屋根であって、既存屋根材の上にカバー屋根材を桁方向に複数枚並べ、前記カバー屋根材を段方向に複数段並べる前記屋根において、前記カバー屋根材の働き長さの水平投影寸法が前記建物の設計単位寸法の整数分の一であり、前記カバー屋根材の働き幅寸法が前記働き長さの水平投影寸法の二倍以上の整数倍であり、前記屋根の軒先に既存屋根材を覆うカバー軒先部材を設け、前記カバー軒先部材は、前記カバー屋根材の流れ方向における水平投影葺き始め位置を設定するための水平投影葺き始め設定範囲を有し、前記水平投影葺き始め設定範囲は、前記カバー屋根材の働き長さの水平投影寸法とし、前記カバー屋根材の流れ方向における前記水平投影葺き始め位置は、陸棟芯を基準にして、水平投影棟際寸法に前記カバー屋根材の働き長さの水平投影寸法の整数倍を加え、かつ前記カバー軒先部材の前記水平投影葺き始め設定範囲の範囲内の位置とし、陸棟部、隅棟部、ケラバ部、壁際部、三又部、陸棟曲がり部、谷部などの全ての屋根端部に規格化した形状のカバー屋根材を配置するものである。本実施の形態によれば、軒の出寸法が前記建物の設計単位寸法で作られていない既存屋根材が葺かれている屋根においても、前記建物の設計単位寸法と連動したカバー屋根材の配置が可能となり、陸棟部、隅棟部、ケラバ部、壁際部、三又部、陸棟曲がり部、谷部など全ての屋根端部においてカバー屋根材の配置がルール化出来る。その結果全ての屋根端部において規格化した形状のカバー屋根材を設定し配置することが出来る。
また、前記カバー屋根材を長尺化することで横方向での施工枚数の減少により施工性を上げることが出来る。
さらに、規格化した形状のカバー屋根材は、前記カバー屋根材をプレカット加工により生産することが可能となり、高い生産性で生産することが出来る。
なお、カバー屋根材の流れ方向における前記水平投影葺き始め位置は、陸棟芯を基準とすると記載しているが、流れ方向の最上段が陸棟部ではなく壁際部の場合は、陸棟芯を壁芯に置き換え、かつ水平投影棟際寸法を水平投影壁際寸法に置き換えることで壁際部の場合においても同様の作用効果を得ることが出来る。 The method for arranging the roofing material of the long horizontal roofing module roofing material in the first embodiment of the present invention is the roof of a building having a sloped roof, and the covering roofing material is placed on the existing roofing material in the girder direction. In the roof in which a plurality of sheets are arranged and the cover roofing materials are arranged in a plurality of stages in the step direction, the horizontal projection dimension of the working length of the cover roofing material is an integral fraction of the design unit dimension of the building, and the cover roofing material. The working width dimension of is an integral multiple of twice or more the horizontal projection dimension of the working length, a cover eaves member covering the existing roofing material is provided on the eaves of the roof, and the cover eaves member is the cover roofing material. It has a horizontal projection roofing start setting range for setting the horizontal projection roofing start position in the flow direction, and the horizontal projection roofing start setting range is the horizontal projection dimension of the working length of the cover roofing material, and the cover roofing material. The horizontal projection roofing start position in the flow direction of the roof is obtained by adding an integral multiple of the horizontal projection dimension of the working length of the cover roofing material to the horizontal projection ridge edge dimension with reference to the land ridge core, and the horizontal of the cover eaves member. A cover roof with a standardized shape for all roof edges such as the land ridge, corner ridge, keraba, wall edge, three-pronged part, land ridge bend, valley, etc. It is for arranging materials. According to the present embodiment, even in a roof covered with an existing roofing material whose eaves protrusion dimension is not made by the design unit dimension of the building, the arrangement of the cover roofing material linked with the design unit dimension of the building is provided. It is possible to make rules for the placement of cover roofing materials at all roof edges such as land ridges, corner ridges, keraba parts, wall edges, three-pronged parts, land ridge bends, and valleys. As a result, it is possible to set and arrange a cover roofing material having a standardized shape at all roof edges.
Further, by lengthening the cover roofing material, the workability can be improved by reducing the number of works to be carried out in the lateral direction.
Further, the standardized shape of the cover roofing material can be produced by pre-cutting the cover roofing material, and can be produced with high productivity.
It is stated that the horizontal projection start position in the flow direction of the cover roofing material is based on the land ridge core, but if the uppermost stage in the flow direction is not the land ridge but the wall edge, replace the land ridge core with the wall core. Further, by replacing the horizontal projection ridge dimension with the horizontal projection wall dimension, the same effect can be obtained even in the case of the wall edge portion.

本発明の第２の実施の形態は、第１の実施の形態による長尺横葺きモジュール屋根材の屋根材配置方法において、前記屋根は隅棟又は谷を有し、前記カバー屋根材を前記軒先から陸棟にむかって流れ方向で一段毎に配置する際に、前記カバー屋根材は配置する屋根面の桁方向に対して一方の端部からもう一方の端部方向に前記カバー屋根材の働き長さの水平投影寸法の整数倍をずらして配置するものである。本実施の形態によれば、隅棟部及び谷部は、屋根形状を水平投影した際には一方の桁方向を０度に設定した際には必ず４５度に設定されるため、カバー屋根材の配置が一段登るごとにカバー屋根材の働き長さの水平投影寸法分だけ桁方向でずれる。このことを利用し、カバー屋根材の働き幅寸法を働き長さの水平投影寸法の二倍以上の整数倍とし、かつ、カバー屋根材の桁方向での配置の際に屋根材の働き長さの水平投影寸法の整数倍だけ各段でずらす配置ルールにすることで、各段における配置ルールも簡単明瞭で分かりやすく、屋根端部における規格化した形状のカバー屋根材の種類を減らすことが出来る。 In the second embodiment of the present invention, in the method of arranging the roofing material of the long horizontal roofing module roofing material according to the first embodiment, the roof has a corner ridge or a valley, and the cover roofing material is attached to the eaves. When arranging the cover roofing material step by step in the flow direction from the roof to the land ridge, the cover roofing material works from one end to the other end with respect to the girder direction of the roof surface to be arranged. The lengths are arranged so as to be offset by an integral multiple of the horizontal projection dimension. According to the present embodiment, the corner ridge and the valley are always set to 45 degrees when one of the girder directions is set to 0 degrees when the roof shape is horizontally projected, and therefore the cover roofing material. Each time the arrangement of the roofing material is climbed one step, it shifts in the girder direction by the horizontal projection dimension of the working length of the cover roofing material. Taking advantage of this, the working width dimension of the cover roofing material is set to an integral multiple of twice or more the horizontal projection dimension of the working length, and the working length of the roofing material when the cover roofing material is arranged in the girder direction. By using an arrangement rule that shifts each stage by an integral multiple of the horizontal projection dimension of, the arrangement rule at each stage is simple, clear and easy to understand, and the types of covered roofing materials with a standardized shape at the roof edge can be reduced. ..

本発明の第３の実施の形態は、第２の実施の形態による長尺横葺きモジュール屋根材の屋根材配置方法において、前記カバー屋根材を前記軒先から前記陸棟にむかって流れ方向で一段毎に配置する際に、前記カバー屋根材は配置する屋根面の桁方向に対して一方の端部からもう一方の端部方向に前記カバー屋根材の働き長さの水平投影寸法をずらして配置するものである。本実施の形態によれば、カバー屋根材の配置が一段登るごとにカバー屋根材の働き長さの水平投影寸法分だけ桁方向でずれるため、カバー屋根材の働き長さの水平投影寸法分だけずらして配置するルールにすることで各段における配置ルールがさらに簡単明瞭で分かりやすくなり、隅棟における一方の隅棟端部における規格化した形状のカバー屋根材が１種類の形状となり、規格化した形状のカバー屋根材の種類をさらに減らすことが出来る。 A third embodiment of the present invention is the method of arranging the roofing material of the long horizontal roofing module roofing material according to the second embodiment, in which the cover roofing material is one step in the flow direction from the eaves to the land ridge. When arranging each, the cover roofing material is arranged by shifting the horizontal projection dimension of the working length of the cover roofing material from one end to the other end with respect to the girder direction of the roof surface to be arranged. Is what you do. According to the present embodiment, each time the arrangement of the cover roofing material is climbed one step, the working length of the cover roofing material is shifted in the girder direction by the horizontal projection dimension of the working length of the cover roofing material. By making the rules to be arranged in a staggered manner, the arrangement rules at each stage become simpler, clearer and easier to understand, and the standardized shape of the cover roofing material at the end of one corner of the corner ridge becomes one type of shape and is standardized. It is possible to further reduce the types of cover roofing materials with a different shape.

本発明の第４の実施の形態は、第２又は第３のいずれか実施の形態による長尺横葺きモジュール屋根材の屋根材配置方法において、前記屋根面における桁方向の寸法調整に用いるカバー調整屋根材の働き幅寸法は、前記カバー屋根材の働き長さの水平投影寸法の整数倍であり、前記カバー調整屋根材を前記カバー屋根材の代わりに配置することで働き幅寸法の差分により前記桁方向の寸法調整を行うものである。本実施の形態によれば、前記カバー調整屋根材を入れることで桁方向の寸法を調整することが出来、隅棟部、谷部などの斜めカット加工が必要な屋根端部において斜めカット加工した規格化した形状のカバー屋根材の種類を減らすことが出来る。また、前記カバー屋根材の働き幅寸法は前記働き長さの水平投影寸法の整数倍だが、前記整数倍の倍率が大きい場合、屋根端部の規格化した形状のカバー屋根材の種類が増えてしまうが、適切な働き幅寸法のカバー調整屋根材を入れることで屋根端部の規格化した形状のカバー屋根材種類が増えるのを抑えることが出来る。 A fourth embodiment of the present invention is a cover adjustment used for dimensional adjustment in the girder direction on the roof surface in the roofing material arrangement method for a long horizontal roofing module roofing material according to any of the second or third embodiments. The working width dimension of the roofing material is an integral multiple of the horizontal projection dimension of the working length of the cover roofing material, and by arranging the cover adjusting roofing material in place of the cover roofing material, the difference in the working width dimension is used. It adjusts the dimensions in the girder direction. According to the present embodiment, the dimensions in the girder direction can be adjusted by inserting the cover adjusting roofing material, and diagonal cutting is performed at the roof edge portion requiring diagonal cutting such as a corner ridge and a valley. It is possible to reduce the types of cover roofing materials with standardized shapes. Further, the working width dimension of the cover roofing material is an integral multiple of the horizontal projection dimension of the working length, but when the magnification of the integral multiple is large, the types of the covered roofing material having the standardized shape of the roof end portion increase. However, by inserting a cover adjustment roofing material with an appropriate working width dimension, it is possible to suppress an increase in the types of cover roofing materials having a standardized shape at the roof edge.

本発明の第５の実施の形態は、第４の実施の形態による長尺横葺きモジュール屋根材の屋根材配置方法において、前記カバー調整屋根材は複数種類の働き幅寸法を設け、異なる種類の働き幅寸法を有する前記カバー調整屋根材を組み合わせて配置することで前記桁方向の寸法調整を行うものである。本実施の形態によれば、前記カバー調整屋根材の働き幅寸法の種類を減らすことが出来る。 A fifth embodiment of the present invention is the method for arranging the roofing material of the long horizontal roofing module roofing material according to the fourth embodiment, wherein the cover adjusting roofing material is provided with a plurality of types of working width dimensions and different types. The dimension adjustment in the girder direction is performed by arranging the cover adjustment roofing material having a working width dimension in combination. According to this embodiment, it is possible to reduce the types of working width dimensions of the cover adjusting roofing material.

本発明の第６の実施の形態は、第１から第５のいずれかの実施の形態による長尺横葺きモジュール屋根材の屋根材配置方法において、前記隅棟部に配置する前記規格化した形状のカバー屋根材の働き幅寸法は、前記カバー屋根材の働き長さの水平投影寸法の二倍とするものである。本実施の形態によれば、三又部に配置する三又規格化形状屋根材の種類を減らすことが出来る。 A sixth embodiment of the present invention is the standardized shape to be arranged in the corner ridge portion in the method for arranging the roofing material of the long horizontal roofing module roofing material according to any one of the first to fifth embodiments. The working width dimension of the cover roofing material is twice the horizontal projection dimension of the working length of the cover roofing material. According to this embodiment, it is possible to reduce the types of the three-pronged standardized roofing material arranged in the three-pronged portion.

以下本発明の実施例によるリフォーム用長尺横葺きモジュール屋根材の屋根材配置方法について説明する。
図１は実施例による寄棟屋根面におけるカバー屋根材２の屋根伏せ割付図及び流れ方向１４の施工断面図である。
図１は勾配４を有する屋根３を備える建物の屋根３であって、既存屋根材１の上にカバー屋根材２を桁方向１３に複数枚並べ、前記カバー屋根材２を段方向に複数段並べた、寄棟屋根面におけるカバー屋根材２の屋根伏せ割付図である。
図１（ａ）は、寄棟屋根の三角面にカバー屋根材２と屋根端部１５に規格化形状屋根材１６とカバー調整屋根材１７と軒先５にカバー軒先部材６を割り付けた屋根伏せ割り付け図である。
図１（ｂ）は、図１（ａ）の軒先５の中央部にＡ-Ａ断面図の指示を記した軒先側における流れ方向１４の施工断面図である。
図１（ｃ）は、図１（ａ）の陸棟芯９にＢ-Ｂ断面図の指示を記した陸棟側における流れ方向１４の施工断面図である。
建物の設計単位寸法Ｐは尺モジュールであり、設計単位寸法Ｐは９１０mmである。
カバー屋根材２の働き長さの水平投影寸法Ｌｈは、建物の設計単位寸法Ｐの四分の一の２２７．５mmであり、カバー屋根材２の働き幅寸法Ｗは、働き長さの水平投影寸法Ｌｈの８倍にあたる１８２０mmとする。
軒の出寸法１８は６００mmである。
桁方向１３の軒桁間の寸法は９Ｐの８１９０mmであり、軒先５の桁寸法は軒の出寸法１８の６００mmを左右足すと８１９０＋１２００＝９３９０mmとなる。 Hereinafter, a method of arranging the roofing material of the long horizontal roofing module roofing material for remodeling according to the embodiment of the present invention will be described.
FIG. 1 is a roof layout layout of the cover roofing material 2 on the hipped roof surface according to the embodiment and a construction cross-sectional view of the flow direction 14.
FIG. 1 is a roof 3 of a building having a roof 3 having a slope 4, in which a plurality of cover roofing materials 2 are arranged on the existing roofing material 1 in the girder direction 13, and the cover roofing materials 2 are arranged in a plurality of steps in the step direction. It is a roof laying allocation diagram of the cover roofing material 2 on the hipped roof surface arranged side by side.
In FIG. 1 (a), a cover roof material 2 is assigned to the triangular surface of the hipped roof, a standardized shape roof material 16 is assigned to the roof end portion 15, a cover adjusting roof material 17 and a cover eaves member 6 are assigned to the eaves 5. It is a figure.
FIG. 1B is a construction cross-sectional view of the flow direction 14 on the eaves side in which the instruction of the AA cross-sectional view is written in the central portion of the eaves 5 of FIG. 1A.
FIG. 1 (c) is a construction cross-sectional view of the flow direction 14 on the land ridge side in which the instruction of the BB cross-sectional view is written on the land ridge core 9 of FIG. 1 (a).
The design unit dimension P of the building is a shaku module, and the design unit dimension P is 910 mm.
The horizontal projection dimension Lh of the working length of the cover roofing material 2 is 227.5 mm, which is a quarter of the design unit dimension P of the building, and the working width dimension W of the cover roofing material 2 is the horizontal projection of the working length. The size is 1820 mm, which is eight times the dimension Lh.
The eaves protrusion dimension 18 is 600 mm.
The dimension between the eaves girders in the girder direction 13 is 8190 mm of 9P, and the girder dimension of the eaves tip 5 is 8190 + 1200 = 9390 mm when 600 mm of the eaves protrusion dimension 18 is added to the left and right.

先ず、図１（ａ）寄棟屋根の三角面にカバー屋根材２と屋根端部１５に規格化形状屋根材１６とカバー調整屋根材１７と軒先５にカバー軒先部材６を割り付けた屋根伏せ割り付け図における配置方法を説明する。
軒先５に既存屋根材１を覆うようにカバー軒先部材６を設ける。
カバー軒先部材６は、カバー屋根材２の流れ方向１４における水平投影葺き始め位置７を設定するための水平投影葺き始め設定範囲Ｒｈを有している。
水平投影葺き始め設定範囲Ｒｈは２２７．５mmであり、前記カバー屋根材２の働き長さの水平投影寸法Ｌｈとする。
前記カバー屋根材２の流れ方向１４における軒先側の水平投影葺き始め位置７は、陸棟芯９を基準にして、水平投影棟際寸法ＭＬｈにカバー屋根材２の働き長さの水平投影寸法Ｌｈの整数倍を加え、かつカバー軒先部材６の水平投影葺き始め設定範囲Ｒｈの範囲内の位置とする。
具体的には、水平投影棟際寸法ＭＬｈは２４７．５mmであり、カバー屋根材２の働き長さの水平投影寸法Ｌｈである２２７．５mmに端部隙間寸法２１の２０mmが足された寸法である。
屋根面の軒桁までの流れ長さの水平投影寸法が４．５Pの４０９５mm、軒の出寸法１８が６００mmであり、陸棟芯９から軒先５までの水平投影距離が４６９５mmとなる。
カバー軒先部材６の水平投影葺き始め設定範囲Ｒｈが２２７．５mmなので、陸棟芯９から軒先５までの水平投影距離の４６９５mmから水平投影棟際寸法ＭＬｈの２４７．５mmを引き、カバー屋根材２の働き長さの水平投影寸法Ｌｈの２２７．５mmで割り、小数点以下を切り捨てた整数値がカバー屋根材２の施工段数となる。
よって本実施例におけるカバー屋根材２の流れ方向１４における軒先側の水平投影葺き始め位置７は、次の計算式により求めることが出来る。
（４６９５−２４７．５）÷２２７．５＝１９．５４９・・・
切り捨てて１９段で計算。
４６９５−２４７．５−２２７．５×１９＝１２５mm
水平投影葺き始め位置７は軒先５から１２５mmの位置となり、カバー軒先部材６の水平投影葺き始め設定範囲Ｒｈの範囲内の位置となる。 First, in FIG. 1 (a), the cover roof material 2 and the roof end 15 are assigned the standardized shape roof material 16 and the cover adjustment roof material 17 and the eaves 5 are assigned the cover eaves member 6 to the triangular surface of the hipped roof. The arrangement method in the figure will be described.
A cover eaves member 6 is provided on the eaves 5 so as to cover the existing roofing material 1.
The cover eaves member 6 has a horizontal projection roofing start setting range Rh for setting the horizontal projection roofing start position 7 in the flow direction 14 of the cover roofing material 2.
The horizontal projection start setting range Rh is 227.5 mm, and the horizontal projection dimension Lh of the working length of the cover roofing material 2 is set.
The horizontal projection roofing start position 7 on the eaves side in the flow direction 14 of the cover roofing material 2 is an integer of the horizontal projection dimension Lh of the working length of the cover roofing material 2 with respect to the horizontal projection ridge edge dimension MLh with reference to the land ridge core 9. Double the number and set the position within the range of the horizontal projection roofing start setting range Rh of the cover eaves member 6.
Specifically, the horizontal projection ridge dimension MLh is 247.5 mm, which is the horizontal projection dimension Lh of the working length of the cover roofing material 2 plus 20 mm of the end gap dimension 21. is there.
The horizontal projection dimension of the flow length to the eaves girder on the roof surface is 4.5P, 4095 mm, the eaves protrusion dimension 18 is 600 mm, and the horizontal projection distance from the land ridge core 9 to the eaves tip 5 is 4695 mm.
Since the horizontal projection roofing start setting range Rh of the cover eaves member 6 is 227.5 mm, the horizontal projection MLh dimension MLh of 247.5 mm is subtracted from the horizontal projection distance of 4695 mm from the land ridge core 9 to the eaves 5, and the function of the cover roof material 2 The number of construction steps of the cover roofing material 2 is an integer value obtained by dividing the length by the horizontal projection dimension Lh of 227.5 mm and rounding down after the decimal point.
Therefore, the horizontal projection roofing start position 7 on the eaves side in the flow direction 14 of the cover roofing material 2 in this embodiment can be obtained by the following formula.
(4695-247.5) ÷ 227.5 = 19.549 ...
Truncate and calculate in 19 steps.
4695-247.5-227.5 x 19 = 125 mm
The horizontal projection roofing start position 7 is a position from the eaves 5 to 125 mm, and is a position within the range of the horizontal projection roofing start setting range Rh of the cover eaves member 6.

カバー屋根材２は、軒先５から１２５mmの位置を水平投影葺き始め位置７として１段目を配置する。
カバー屋根材２の配置方向は、屋根面の桁方向１３に対して右の隅棟部１５ｂから左の隅棟部１５ｂに向かった方向とする。
隅棟部１５ｂには隅棟規格化形状屋根材１６ｂを配置する。
隅棟規格化形状屋根材１６ｂの働き幅寸法は、カバー屋根材２の働き長さの水平投影寸法Ｌｈの二倍にあたる４５５mmとする。
右の隅棟規格化形状屋根材１６ｂと左の隅棟規格化形状屋根材１６ｂの働き幅寸法は同じ４５５mmとする。
右側の隅棟規格化形状屋根材１６ｂを右の隅棟部１５ｂに配置し、その左隣にカバー屋根材２を配置し、順次左側の隅棟部１５ｂに向かってカバー屋根材２を配置する。
軒先５から１段毎登るに際に、桁方向１３に対して右側の隅棟部１５ｂから左側の隅棟部１５ｂに向かう方向でカバー屋根材２をカバー屋根材２の働き長さの水平投影寸法Ｌｈ分の２２７．５mmだけずらして配置する。
本実施例では桁方向１３の寸法調整を行うために、カバー屋根材２の働き長さの水平投影寸法Ｌｈの２倍の４５５mm、４倍の９１０mmの働き幅寸法を有したカバー調整屋根材１７を２種類配置する。
軒先５の桁寸法が９３９０mmであり、軒先５から１２５mmの位置が水平投影葺き始め位置７なので、水平投影葺き始め位置７における桁方向１３の寸法は左右で１２５mmずつマイナスになるため、９３９０−１２５×２＝９１４０mmとなる。
ただし、隅棟１０の芯からカバー屋根材２の葺き始めには桁方向１３で２０mm隙間を設ける。
これは、陸棟芯９と陸棟規格化形状屋根材１６ａの端部との隙間となる流れ方向１４における端部隙間寸法２１が２０mmであることから、桁方向１３における隅棟部１５での端部隙間寸法２１も２０mmとなる。
カバー屋根材２の１段目は、桁方向の端部隙間寸法２１が左右に２０mmあり、続いて働き幅４５５mmの隅棟規格化形状屋根材１６ｂが左右にある。
カバー屋根材２の１段目は、水平投影葺き始め位置７における桁方向１３の寸法が９１４０mmであり、桁方向１３の端部隙間寸法２１が左右で４０mm、隅棟規格化形状屋根材１６ｂが左右で９１０mm、カバー屋根材２の働き幅寸法Ｗの１８２０mmで割ると４．５枚となる。
（９１４０−４０−９１０）÷１８２０＝４．５枚
つまり、カバー屋根材２が４枚入り、残りの桁方向１３の寸法が１８２０mm×０．５枚＝９１０mmとなり、働き幅寸法が９１０mmのカバー調整屋根材１７を入れることで規格形状屋根材１６により屋根３を納めることが出来る。
２段目は１段目と比較して、桁方向１３の寸法は片側でカバー屋根材２の働き長さの水平投影寸法Ｌｈ分だけ短くなり、両側ではカバー屋根材２の働き長さの水平投影寸法Ｌｈの２倍の寸法だけ短くなる。
カバー屋根材２の働き長さの水平投影寸法Ｌｈは２２７．５mmなので、２倍の４５５mm分だけ桁方向１３の寸法が短くなる。
よって、２段目の桁方向１３の寸法調整に用いるカバー調整屋根材１７は働き幅寸法が４５５mmのものを配置することになる。
３段目以降も同様に桁方向１３の寸法が１段登るごとに４５５mm短くなり、カバー調整屋根材１７によって桁方向１３の寸法を調整する。
３段目は４５５mmのカバー調整屋根材１７を入れないことにより桁方向１３の寸法を調整する。
４段目はカバー調整屋根材１７の働き幅寸法が１８２０−４５５＝１３６５mmになるが、実施例では４５５mmのカバー調整屋根材１７と９１０mmのカバー調整屋根材を合わせて入れることで１３６５mmの働き幅として桁方向１３の寸法を調整する。
以後１段目から４段目と同じカバー調整屋根材１７の配置の仕方で納めることが出来る。
１９段目はカバー屋根材２もカバー調整屋根材１７も配置せず、左右の隅棟規格化形状屋根材１６ｂだけを配置する。
最上段の２０段目の三又部１５ｅは、三又規格化形状屋根材１６ｅを配置する。 The first stage of the cover roofing material 2 is arranged with the position of 125 mm from the eaves 5 as the horizontal projection start position 7.
The arrangement direction of the cover roof material 2 is the direction from the right corner ridge portion 15b to the left corner ridge portion 15b with respect to the girder direction 13 of the roof surface.
A corner ridge standardized shape roofing material 16b is arranged in the corner ridge portion 15b.
The working width dimension of the corner ridge standardized shape roofing material 16b is 455 mm, which is twice the horizontal projection dimension Lh of the working length of the cover roofing material 2.
The working width dimension of the right corner ridge standardized shape roofing material 16b and the left corner ridge standardized shape roofing material 16b is the same 455 mm.
The right corner ridge standardized shape roofing material 16b is arranged in the right corner ridge portion 15b, the cover roofing material 2 is arranged on the left side thereof, and the cover roofing material 2 is sequentially arranged toward the left corner ridge portion 15b. ..
When climbing step by step from the eaves 5, cover roofing material 2 is horizontally projected on the working length of covering roofing material 2 in the direction from the right corner ridge 15b to the left corner ridge 15b with respect to the girder direction 13. The arrangement is shifted by 227.5 mm for the dimension Lh.
In this embodiment, in order to adjust the dimension in the girder direction 13, the cover adjustment roofing material 17 having a working width dimension of 455 mm, which is twice the horizontal projection dimension Lh of the working length of the cover roofing material 2, and 910 mm, which is four times. Two types are arranged.
Since the girder dimension of the eaves 5 is 9390 mm and the position 125 mm from the eaves 5 is the horizontal projection roofing start position 7, the dimension of the girder direction 13 at the horizontal projection roofing start position 7 is minus 125 mm on each side, so 9390-125. × 2 = 9140 mm.
However, a gap of 20 mm is provided in the girder direction 13 at the beginning of roofing of the cover roofing material 2 from the core of the corner ridge 10.
This is because the end gap dimension 21 in the flow direction 14 which is the gap between the land ridge core 9 and the end of the land ridge standardized shape roofing material 16a is 20 mm, so that the end at the corner ridge 15 in the girder direction 13 The gap size 21 is also 20 mm.
In the first stage of the cover roofing material 2, the end gap dimension 21 in the girder direction is 20 mm on the left and right, followed by the corner ridge standardized shape roofing material 16b having a working width of 455 mm on the left and right.
In the first stage of the cover roofing material 2, the dimension of the girder direction 13 at the horizontal projection start position 7 is 9140 mm, the end gap dimension 21 of the girder direction 13 is 40 mm on the left and right, and the corner ridge standardized shape roofing material 16b is provided. Dividing by 910 mm on the left and right and 1820 mm of the working width dimension W of the cover roofing material 2, it becomes 4.5 sheets.
(9140-40-910) ÷ 1820 = 4.5 sheets That is, 4 sheets of cover roofing material 2 are included, the dimensions of the remaining girder direction 13 are 1820 mm × 0.5 sheets = 910 mm, and the working width dimension is 910 mm. By inserting the adjusted roofing material 17, the roof 3 can be accommodated by the standard shape roofing material 16.
Compared to the first step, the dimension of the girder direction 13 in the second step is shorter by the horizontal projection dimension Lh of the working length of the cover roofing material 2 on one side, and the working length of the cover roofing material 2 is horizontal on both sides. It is shortened by twice the projected dimension Lh.
Since the horizontal projection dimension Lh of the working length of the cover roof material 2 is 227.5 mm, the dimension in the girder direction 13 is shortened by 455 mm, which is twice as long.
Therefore, the cover adjusting roofing material 17 used for the dimension adjustment in the girder direction 13 of the second stage has a working width dimension of 455 mm.
Similarly, in the third and subsequent steps, the dimension in the girder direction 13 is shortened by 455 mm each time the girder direction 13 is climbed, and the dimension in the girder direction 13 is adjusted by the cover adjusting roof material 17.
In the third stage, the dimension of the girder direction 13 is adjusted by not inserting the 455 mm cover adjusting roof material 17.
In the fourth stage, the working width dimension of the cover adjusting roof material 17 is 1820-455 = 1365 mm, but in the embodiment, the working width of 1365 mm is obtained by putting the cover adjusting roof material 17 of 455 mm and the cover adjusting roof material of 910 mm together. The dimension of the girder direction 13 is adjusted as.
After that, the cover adjustment roofing material 17 can be arranged in the same manner as in the first to fourth stages.
In the 19th stage, neither the cover roofing material 2 nor the cover adjusting roofing material 17 is arranged, and only the left and right corner building standardized shape roofing materials 16b are arranged.
A three-pronged standardized roofing material 16e is arranged on the uppermost 20th three-pronged portion 15e.

図１（ｂ）は、図１（ａ）の軒先５の中央部にＡ-Ａ断面図の指示を記した軒先側における流れ方向の施工断面図である。
屋根３には、既存屋根材１が施工されていて、カバー屋根材２は既存屋根材１の上を覆う形で配置する。
既存屋根材１の上にカバー屋根材２を施工するカバー工法の場合は、既存屋根材１の上に下葺き材２２を施工し、その上からカバー屋根材２を施工する施工仕様が一般的である。
実施例では、既存屋根材１はＪＩＳ Ａ ５４２３の住宅屋根用化粧スレートをあらわしている。
この住宅屋根用化粧スレートは西暦２０００年以前の日本における商品ではアスベストが含有されている製品仕様のものが多く、葺き替えするにはアスベストの飛散防止策が必要となる。
そのため既存屋根材１の上からカバー屋根材２として軽量な金属屋根材を重ね葺きする施工方法はリフォーム時のアスベスト飛散防止にもつながり、近年リフォーム市場においてニーズが高まっている。
既存屋根材１は、雨水の伝わりを考慮して野地から２０から６０mm程度、屋根材先端を出して施工する。
軒先５に使用するカバー軒先部材６は、既存屋根材１の表面から裏面までを覆う形状となっている。
カバー軒先部材６は、既存屋根材１の軒先裏面を覆う既存屋根材裏面カバー部８を有している。
実施例のカバー軒先部材６では、既存屋根材１の軒先裏面を覆う部分はコの字状の形状になっていて、既存屋根材裏面カバー部８は既存屋根材１の裏面とほぼ平行になり、既存屋根材１を飲み込むようにして設置する。
カバー軒先部材６はカバー屋根材２の流れ方向１４における水平投影葺き始め位置７を設定するための水平投影葺き始め設定範囲Ｒｈを有している。
実施例では、水平投影葺き始め設定範囲Ｒｈは、カバー屋根材２の働き長さの水平投影寸法Ｌｈの２２７．５mmであり、カバー屋根材２の流れ方向１４における水平投影葺き始め位置７は１２５mmである。
リフォームにおいては軒の出寸法１８が建物の設計単位寸法Ｐを考慮せずに決めるため、カバー軒先部材６の水平投影葺き始め設定範囲ＲＨの範囲内で建物の設計単位寸法Ｐとカバー屋根材２の働き長さの水平投影寸法Ｌｈが関連するようにカバー屋根材２の葺き始め位置を調整する。
屋根勾配４は、４寸勾配であり水平投影寸法に対して流れ寸法の勾配伸び率は１．０７７となり、カバー屋根材２の軒先５からの屋根面における葺き始め位置は、１２５mmに４寸勾配の勾配伸び率１．０７７を掛けることで求めることが出来る。
図示しているように屋根面における葺き始め位置は、１３４．６mmとなる。
カバー屋根材２の屋根面における働き長さ寸法Ｌは、働き長さの水平投影寸法Ｌｈの２２７．５mmに４寸勾配の勾配伸び率１．０７７を掛けた寸法の２４５mmとなる。 FIG. 1B is a construction cross-sectional view in the flow direction on the eaves side in which the instruction of the AA cross-sectional view is written in the central portion of the eaves 5 of FIG. 1A.
An existing roofing material 1 is constructed on the roof 3, and the cover roofing material 2 is arranged so as to cover the existing roofing material 1.
In the case of the cover construction method in which the cover roofing material 2 is constructed on the existing roofing material 1, the construction specification is generally that the underlaying material 22 is constructed on the existing roofing material 1 and the cover roofing material 2 is constructed on the existing roofing material 1. Is.
In the embodiment, the existing roofing material 1 represents a decorative slate for a residential roof of JIS A 5423.
Many of the cosmetic slate for residential roofs in Japan before the year 2000 have asbestos-containing product specifications, and asbestos scattering prevention measures are required to replace the roof.
Therefore, a construction method in which a lightweight metal roofing material is layered on top of the existing roofing material 1 as a cover roofing material 2 leads to prevention of asbestos scattering during remodeling, and the need for it has been increasing in the remodeling market in recent years.
The existing roofing material 1 is constructed with the tip of the roofing material protruding from the field by about 20 to 60 mm in consideration of the transmission of rainwater.
The cover eaves member 6 used for the eaves 5 has a shape that covers from the front surface to the back surface of the existing roof material 1.
The cover eaves member 6 has an existing roofing material back cover portion 8 that covers the back surface of the eaves of the existing roofing material 1.
In the cover eaves member 6 of the embodiment, the portion of the existing roofing material 1 covering the back surface of the eaves has a U-shape, and the existing roofing material back surface covering portion 8 is substantially parallel to the back surface of the existing roofing material 1. , Install the existing roofing material 1 so as to swallow it.
The cover eaves member 6 has a horizontal projection roofing start setting range Rh for setting the horizontal projection roofing start position 7 in the flow direction 14 of the cover roofing material 2.
In the embodiment, the horizontal projection roofing start setting range Rh is 227.5 mm of the horizontal projection dimension Lh of the working length of the cover roofing material 2, and the horizontal projection roofing start position 7 in the flow direction 14 of the cover roofing material 2 is 125 mm. Is.
In the remodeling, the eaves protrusion dimension 18 is determined without considering the building design unit dimension P, so that the horizontal projection roofing start setting range RH of the cover eaves member 6 is within the range of the building design unit dimension P and the cover roofing material 2. The roofing start position of the cover roofing material 2 is adjusted so that the horizontal projection dimension Lh of the working length of is related.
The roof slope 4 is a 4 inch slope, the slope elongation rate of the flow dimension is 1.077 with respect to the horizontal projection dimension, and the roofing start position on the roof surface from the eaves 5 of the cover roof material 2 is a 4 inch slope of 125 mm. It can be obtained by multiplying the gradient elongation rate of 1.077.
As shown in the figure, the roofing start position on the roof surface is 134.6 mm.
The working length dimension L on the roof surface of the cover roofing material 2 is 245 mm, which is the dimension obtained by multiplying the horizontal projection dimension Lh of the working length by 227.5 mm by the gradient elongation rate of 1.077.

図１（ｃ）は、図１（ａ）の陸棟芯９にＢ-Ｂ断面図の指示を記した陸棟側における流れ方向の施工断面図である。
陸棟部１５ａでは、陸棟規格化形状屋根材１６ａを配置する。
実施例では、陸棟芯９と陸棟規格化形状屋根１６ａの端部との端部隙間寸法２１は水平投影寸法で２０mmとしている。
陸棟芯９から陸棟規格化形状屋根１６aまでの水平投影寸法を水平投影棟際寸法ＭＬｈとする。水平投影棟際寸法ＭＬｈはカバー屋根材２の働き長さの水平投影寸法Ｌｈに端部隙間寸法２１を足した寸法なので２２７．５mm＋２０mm＝２４７．５mmとなる。
屋根面での寸法は４寸勾配の勾配伸び率１．０７７を掛けた寸法の２６６．６mmとなる。 FIG. 1 (c) is a construction cross-sectional view in the flow direction on the land ridge side in which the instruction of the BB cross-sectional view is written on the land ridge core 9 of FIG. 1 (a).
In the land ridge portion 15a, the land ridge standardized shape roofing material 16a is arranged.
In the embodiment, the end gap dimension 21 between the land ridge core 9 and the end of the land ridge standardized roof 16a is 20 mm in the horizontal projection dimension.
The horizontal projection dimension from the land ridge core 9 to the land ridge standardized shape roof 16a is defined as the horizontal projection ridge edge dimension MLh. The horizontal projection ridge dimension MLh is the dimension obtained by adding the end gap dimension 21 to the horizontal projection dimension Lh of the working length of the cover roof material 2, so that it is 227.5 mm + 20 mm = 247.5 mm.
The dimension on the roof surface is 266.6 mm, which is the dimension obtained by multiplying the gradient elongation rate of 1.077 by 4 inch gradient.

図２は実施例による軒先部における流れ方向１４の施工断面図である。
図２（ａ）は、カバー軒先部材６の水平投影葺き始め設定範囲Ｒｈにおいて、カバー屋根材２の流れ方向１４における水平投影葺き始め位置７が最小の軒先納まりを表した施工断面図である。
水平投影葺き始め位置７における軒先５からの距離は０である。
図２（ｂ）は、カバー軒先部材６の水平投影葺き始め設定範囲Ｒｈにおいて、カバー屋根材２の流れ方向１４における水平投影葺き始め位置７が軒先５から１２５mmの際の軒先納まりを表した施工断面図であり、図１（ｂ）の軒先部における流れ方向１４の施工断面図を拡大した図である。
図２（ｃ）は、カバー軒先部材６の水平投影葺き始め設定範囲Ｒｈにおいて、カバー屋根材２の流れ方向１４における水平投影葺き始め位置７が最大の軒先納まりを表した施工断面図である。
水平投影葺き始め位置７における軒先５からの距離は２２７．５mmである。
建物の設計単位寸法Ｐは尺モジュールであり、設計単位寸法Ｐは９１０mm、カバー屋根材２の働き長さの水平投影寸法Ｌｈは、建物の設計単位寸法Ｐの四分の一の２２７．５mm、勾配４は４寸勾配であり、図１（ｂ）と同様な軒先５の納まりを表している。
屋根勾配４は、４寸勾配であり水平投影寸法に対して流れ寸法の勾配伸び率は１．０７７となり、カバー屋根材２の軒先５からの屋根面における葺き始め位置は、水平投影葺き始め位置７に４寸勾配の勾配伸び率１．０７７を掛けることで求めることが出来る。
カバー屋根材２の軒先５からの屋根面における葺き始め位置は、図２（ａ）は０、図２（ｂ）は１３４．６mm、図２（ｃ）は２４５mmとなる。
カバー屋根材２の屋根面における働き長さ寸法Ｌは、働き長さの水平投影寸法Ｌｈの２２７．５mmに４寸勾配の勾配伸び率１．０７７を掛けた寸法の２４５mmとなる。
屋根面における葺き始め設定範囲Ｒは、水平投影葺き始め設定範囲Ｒｈに４寸勾配の勾配伸び率１．０７７を掛けて算出するので働き長さ寸法Ｌと同じ２４５mmとなる。
既存屋根材１の上には下葺き材２２を施工する。
カバー軒先部材６は、既存屋根材１の先端を覆うように係合させ、尻側に留め付け材２８で屋根下地に留め付ける。
カバー軒先部材６は、頭側における既存屋根材１への係合と尻側における留め付け材２８の屋根下地材への留め付けでしっかりと屋根３へ固定することが出来る。
カバー屋根材２は、水平投影葺き始め位置７より施工する。
１段目のカバー屋根材２は、頭側係合部２４は屋根下地に固定した係合部と係合させ、尻側係合部２５は屋根下地に尻側留め付け材２８で屋根下地に固定する。
２段目以降は、下段の尻側係合部２５と上段の頭側係合部２４を係合させ、尻側係合部２５は屋根下地に尻側留め付け材２８で屋根下地に固定することで屋根３へしっかりと固定することが出来る。
実施例のカバー屋根材２は、頭見附部２３を所定の寸法で設けることで頭側係合部２４と尻側係合部２５の係合構造を流れ方向の製品重なり内に設けることが出来る。 FIG. 2 is a construction cross-sectional view of the flow direction 14 at the eaves portion according to the embodiment.
FIG. 2A is a construction cross-sectional view showing the minimum eaves fit at the horizontal projection roofing start position 7 in the flow direction 14 of the cover roofing material 2 in the horizontal projection roofing start setting range Rh of the cover eaves member 6.
The distance from the eaves 5 at the horizontal projection start position 7 is 0.
FIG. 2B shows the eaves fitting when the horizontal projection roofing start position 7 in the flow direction 14 of the cover roofing material 2 is from the eaves 5 to 125 mm in the horizontal projection roofing start setting range Rh of the cover eaves member 6. It is a cross-sectional view, and is an enlarged view of the construction cross-sectional view of the flow direction 14 at the eaves tip portion of FIG. 1 (b).
FIG. 2C is a construction cross-sectional view showing the maximum eaves fit at the horizontal projection roofing start position 7 in the flow direction 14 of the cover roofing material 2 in the horizontal projection roofing start setting range Rh of the cover eaves member 6.
The distance from the eaves 5 at the horizontal projection start position 7 is 227.5 mm.
The design unit dimension P of the building is a shaku module, the design unit dimension P is 910 mm, and the horizontal projection dimension Lh of the working length of the cover roofing material 2 is 227.5 mm, which is a quarter of the design unit dimension P of the building. The gradient 4 is a 4-inch gradient, and represents the fit of the eaves 5 as in FIG. 1 (b).
The roof slope 4 is a 4-inch slope, and the slope elongation rate of the flow dimension is 1.077 with respect to the horizontal projection dimension, and the roofing start position on the roof surface from the eaves 5 of the cover roofing material 2 is the horizontal projection roofing start position. It can be obtained by multiplying 7 by the gradient elongation rate of 1.077 with a 4 inch gradient.
The roofing start position of the cover roofing material 2 on the roof surface from the eaves 5 is 0 in FIG. 2 (a), 134.6 mm in FIG. 2 (b), and 245 mm in FIG. 2 (c).
The working length dimension L on the roof surface of the cover roofing material 2 is 245 mm, which is the dimension obtained by multiplying the horizontal projection dimension Lh of the working length by 227.5 mm by the gradient elongation rate of 1.077.
The roofing start setting range R on the roof surface is calculated by multiplying the horizontal projection roofing start setting range Rh by the gradient elongation rate of 4 inch gradient 1.077, so that it is 245 mm, which is the same as the working length dimension L.
The underlaying material 22 is constructed on the existing roofing material 1.
The cover eaves member 6 is engaged so as to cover the tip of the existing roof material 1, and is fastened to the roof base with a fastening material 28 on the buttock side.
The cover eaves member 6 can be firmly fixed to the roof 3 by engaging with the existing roof material 1 on the head side and fastening the fastening material 28 on the tail side to the roof base material.
The cover roofing material 2 is constructed from the horizontal projection roofing start position 7.
In the first-stage cover roofing material 2, the head side engaging portion 24 is engaged with the engaging portion fixed to the roof base, and the tail side engaging portion 25 is attached to the roof base with the tail side fastening material 28. Fix it.
From the second stage onward, the lower butt-side engaging portion 25 and the upper-tier head-side engaging portion 24 are engaged, and the butt-side engaging portion 25 is fixed to the roof base with the butt-side fastener 28. This makes it possible to firmly fix it to the roof 3.
In the cover roofing material 2 of the embodiment, the engagement structure of the head side engaging portion 24 and the tail side engaging portion 25 can be provided in the product overlap in the flow direction by providing the head attachment portion 23 with a predetermined size. ..

図３は実施例による寄棟切妻混合屋根のカバー屋根材２の割付図である。
図３（ａ）は上屋におけるカバー屋根材２の割付図である。
図３（ｂ）は下屋におけるカバー屋根材２の割付図である。
建物の設計単位寸法Ｐは尺モジュールであり、設計単位寸法Ｐは９１０mmである。
カバー屋根材２の働き長さの水平投影寸法Ｌｈは、建物の設計単位寸法Ｐの四分の一の２２７．５mmであり、カバー屋根材２の働き幅寸法Ｗは、働き長さの水平投影寸法Ｌｈの８倍にあたる１８２０mmとする。
軒の出寸法１８は６００mm、破風の出寸法は９１０mmである。 FIG. 3 is an allocation diagram of the cover roof material 2 of the hipped gable mixed roof according to the embodiment.
FIG. 3A is an allocation diagram of the cover roofing material 2 in the shed.
FIG. 3B is an allocation diagram of the cover roofing material 2 in the lower house.
The design unit dimension P of the building is a shaku module, and the design unit dimension P is 910 mm.
The horizontal projection dimension Lh of the working length of the cover roofing material 2 is 227.5 mm, which is a quarter of the design unit dimension P of the building, and the working width dimension W of the cover roofing material 2 is the horizontal projection of the working length. The size is 1820 mm, which is eight times the dimension Lh.
The eaves protrusion dimension 18 is 600 mm, and the gable protrusion dimension is 910 mm.

図３（ａ）の上屋における割付方法について記載する。
軒先５に既存屋根材１を覆うようにカバー軒先部材６を設ける。
カバー軒先部材６は、カバー屋根材２の流れ方向１４における水平投影葺き始め位置７を設定するための水平投影葺き始め設定範囲Ｒｈを有している。
水平投影葺き始め設定範囲Ｒｈは２２７．５mmであり、前記カバー屋根材２の働き長さの水平投影寸法Ｌｈとする。
前記カバー屋根材２の流れ方向１４における軒先側の水平投影葺き始め位置７は、陸棟芯９を基準にして、水平投影棟際寸法ＭＬｈにカバー屋根材２の働き長さの水平投影寸法Ｌｈの整数倍を加え、かつカバー軒先部材６の水平投影葺き始め設定範囲Ｒｈの範囲内の位置とする。
図示はしていないが、本実施例の水平投影棟際寸法ＭＬｈは２２７．５mmであり、カバー屋根材２の働き長さの水平投影寸法Ｌｈである２２７．５mmと同一寸法である。
つまり、陸棟部１５ａにおける端部隙間寸法２１は０mmとなる。
２本の陸棟１２は曲がり部１５ｇでつながっているので、上屋の５つの屋根面は軒桁までの流れ長さの水平投影寸法及び陸棟芯９から軒先５までの流れ長さの水平投影寸法が同一となる。
屋根面の軒桁までの流れ長さの水平投影寸法は３Pの２７３０mm、軒の出寸法１８が６００mmであり、陸棟芯９から軒先５までの水平投影寸法が３３３０mmとなる。
カバー軒先部材６の水平投影葺き始め設定範囲Ｒｈが２２７．５mmなので、陸棟芯９から軒先５までの水平投影寸法の３３３０mmから水平投影棟際寸法ＭＬｈの２２７．５mmを引き、カバー屋根材２の働き長さの水平投影寸法Ｌｈの２２７．５mmで割り、小数点以下を切り捨てた整数値がカバー屋根材２の施工段数となる。
よって本実施例におけるカバー屋根材２の流れ方向１４における軒先側の水平投影葺き始め位置７は、次の計算式により求めることが出来る。
（３３３０−２２７．５）÷２２７．５＝１３．６３７・・・
切り捨てて１３段で計算。
３３３０−２２７．５−２２７．５×１３＝１４５mm
水平投影葺き始め位置７は軒先５から１４５mmの位置となり、カバー軒先部材６の水平投影葺き始め設定範囲Ｒｈの範囲内の位置となる。 The allocation method in the shed of FIG. 3A will be described.
A cover eaves member 6 is provided on the eaves 5 so as to cover the existing roofing material 1.
The cover eaves member 6 has a horizontal projection roofing start setting range Rh for setting the horizontal projection roofing start position 7 in the flow direction 14 of the cover roofing material 2.
The horizontal projection start setting range Rh is 227.5 mm, and the horizontal projection dimension Lh of the working length of the cover roofing material 2 is set.
The horizontal projection roofing start position 7 on the eaves side in the flow direction 14 of the cover roofing material 2 is an integer of the horizontal projection dimension Lh of the working length of the cover roofing material 2 with respect to the horizontal projection ridge edge dimension MLh with reference to the land ridge core 9. Double the number and set the position within the range of the horizontal projection roofing start setting range Rh of the cover eaves member 6.
Although not shown, the horizontal projection ridge edge dimension MLh of this embodiment is 227.5 mm, which is the same dimension as the horizontal projection dimension Lh of the working length of the cover roofing material 2.
That is, the end gap dimension 21 in the land building portion 15a is 0 mm.
Since the two land ridges 12 are connected by a bend of 15 g, the five roof surfaces of the roof have the horizontal projection dimension of the flow length to the eaves girder and the horizontal projection dimension of the flow length from the land ridge core 9 to the eaves tip 5. Are the same.
The horizontal projection dimension of the flow length to the eaves girder of the roof surface is 2730 mm of 3P, the eaves protrusion dimension 18 is 600 mm, and the horizontal projection dimension from the land ridge core 9 to the eaves tip 5 is 3330 mm.
Since the horizontal projection roofing start setting range Rh of the cover eaves member 6 is 227.5 mm, the horizontal projection ridge edge dimension MLh of 227.5 mm is subtracted from the horizontal projection dimension of 3330 mm from the land ridge core 9 to the eaves 5, and the function of the cover roofing material 2 The number of construction steps of the cover roofing material 2 is an integer value obtained by dividing the length by the horizontal projection dimension Lh of 227.5 mm and rounding down after the decimal point.
Therefore, the horizontal projection roofing start position 7 on the eaves side in the flow direction 14 of the cover roofing material 2 in this embodiment can be obtained by the following formula.
(3330-227.5) ÷ 227.5 = 13.637 ...
Truncate and calculate in 13 steps.
3330-227.5-227.5 × 13 = 145mm
The horizontal projection roofing start position 7 is a position from the eaves 5 to 145 mm, and is a position within the range of the horizontal projection roofing start setting range Rh of the cover eaves member 6.

図３（ａ）寄棟切妻混合屋根の台形面にカバー屋根材２と屋根端部１５に規格化形状屋根材１６とカバー調整屋根材１７と軒先５にカバー軒先部材６を割り付けた屋根伏せ割り付け図における配置方法を説明する。
カバー屋根材２は、軒先５から１４５mmの位置を水平投影葺き始め位置７として１段目を配置する。
カバー屋根材２の配置方向は、屋根面の桁方向１３に対して右の隅棟部１５ｂから左の隅棟部１５ｂに向かった方向とする。
隅棟部１５ｂには隅棟規格化形状屋根材１６ｂを配置する。
隅棟規格化形状屋根材１６ｂの働き幅寸法は、カバー屋根材２の働き長さの水平投影寸法Ｌｈの二倍にあたる４５５mmとする。
右の隅棟規格化形状屋根材１６ｂと左の隅棟規格化形状屋根材１６ｂの働き幅寸法は同じ４５５mmとする。
右側の隅棟規格化形状屋根材１６ｂを右の隅棟部１５ｂに配置し、その左隣にカバー屋根材２を配置し、順次左側の隅棟部１５ｂに向かってカバー屋根材２を配置する。
軒先５から１段毎登るに際に、桁方向１３に対して右側の隅棟部１５ｂから左側の隅棟部１５ｂに向かう方向でカバー屋根材２をカバー屋根材２の働き長さの水平投影寸法Ｌｈ分の２２７．５mmだけずらして配置する。
桁方向１３の寸法調整を行うために、カバー屋根材２の働き長さの水平投影寸法Ｌｈの２倍の４５５mm、４倍の９１０mmの働き幅寸法を有したカバー調整屋根材１７を２種類配置する。
軒先５の桁寸法が９１００mmに左右の軒の出寸法１８の６００mmずつを足した１０３００mmであり、軒先５から１４５mmの位置が水平投影葺き始め位置７なので、水平投影葺き始め位置７における桁方向１３の寸法は左右で１４５mmずつマイナスになるため、１０３００−１４５×２＝１００１０mmとなる。
カバー屋根材２の１段目は、水平投影葺き始め位置７における桁方向１３の寸法が１００１０mmであり、隅棟規格化形状屋根材１６ｂが左右で９１０mm、カバー屋根材２の働き幅寸法Ｗの１８２０mmで割ると５枚となる。
（１００１０−９１０）÷１８２０＝５枚
つまり、隅棟規格化形状屋根材１６ｂを左右１枚ずつにカバー屋根材２が５枚を入れることで規格形状屋根材１６により屋根３を納めることが出来る。
２段目は１段目と比較して、桁方向１３の寸法は片側でカバー屋根材２の働き長さの水平投影寸法Ｌｈ分だけ短くなり、両側ではカバー屋根材２の働き長さの水平投影寸法Ｌｈの２倍の寸法だけ短くなる。
カバー屋根材２の働き長さの水平投影寸法Ｌｈは２２７．５mmなので、２倍の４５５mm分だけ桁方向１３の寸法が短くなる。
よって、２段目の桁方向１３の寸法調整に用いるカバー調整屋根材１７の働き幅寸法が１８２０-４５５＝１３６５mmになるが、本実施例では４５５mmのカバー調整屋根材１７と９１０mmのカバー調整屋根材を合わせて入れることで１３６５mmの働き幅として桁方向１３の寸法を調整する。
３段目以降も同様に桁方向１３の寸法が１段登るごとに４５５mm短くなり、働き幅寸法が９１０mmのカバー調整屋根材１７によって桁方向１３の寸法を調整する。
４段目は働き幅寸法が４５５mmのカバー調整屋根材１７によって桁方向１３の寸法を調整する。
５段目以降は、１段目から４段目と同じカバー調整屋根材１７の配置の仕方で納めることが出来る。
最上段の１４段目は、三又部１５ｅに三又規格化形状屋根材１６ｅ、陸棟部１５ａに陸棟規格化形状屋根１６ａを配置する。
なお、１４段目の葺き仕舞いは、２段目の桁方向１３の寸法調整と同じ１３６５mmの桁方向１３における寸法調整となるため、働き幅が４５５mmと９１０mmのカバー調整屋根材１７がベースとなった陸棟規格化形状屋根１６ａを配置して納める。 Fig. 3 (a) Cover roofing material 2 on the trapezoidal surface of the hipped gable mixed roof, standardized shape roofing material 16 on the roof edge 15, cover adjustment roofing material 17, and roof laying with the cover eaves member 6 assigned to the eaves 5. The arrangement method in the figure will be described.
The first stage of the cover roofing material 2 is arranged with the position of the eaves 5 to 145 mm as the horizontal projection roofing start position 7.
The arrangement direction of the cover roof material 2 is the direction from the right corner ridge portion 15b to the left corner ridge portion 15b with respect to the girder direction 13 of the roof surface.
A corner ridge standardized shape roofing material 16b is arranged in the corner ridge portion 15b.
The working width dimension of the corner ridge standardized shape roofing material 16b is 455 mm, which is twice the horizontal projection dimension Lh of the working length of the cover roofing material 2.
The working width dimension of the right corner ridge standardized shape roofing material 16b and the left corner ridge standardized shape roofing material 16b is the same 455 mm.
The right corner ridge standardized shape roofing material 16b is arranged in the right corner ridge portion 15b, the cover roofing material 2 is arranged on the left side thereof, and the cover roofing material 2 is sequentially arranged toward the left corner ridge portion 15b. ..
When climbing step by step from the eaves 5, cover roofing material 2 is horizontally projected on the working length of covering roofing material 2 in the direction from the right corner ridge 15b to the left corner ridge 15b with respect to the girder direction 13. The arrangement is shifted by 227.5 mm for the dimension Lh.
In order to adjust the dimensions in the girder direction 13, two types of cover adjustment roofing materials 17 having a working width dimension of 455 mm, which is twice the horizontal projection dimension Lh of the working length of the cover roofing material 2, and 910 mm, which is four times, are arranged. To do.
The girder dimension of the eaves 5 is 9100 mm plus 600 mm of the left and right eaves protrusion dimensions 18, which is 10300 mm. Since the position from the eaves 5 to 145 mm is the horizontal projection roofing start position 7, the girder direction 13 at the horizontal projection roofing start position 7 Since the dimensions of are minus 145 mm on each side, 10300-145 x 2 = 10010 mm.
In the first stage of the cover roofing material 2, the dimension of the girder direction 13 at the horizontal projection start position 7 is 10010 mm, the corner ridge standardized shape roofing material 16b is 910 mm on the left and right, and the working width dimension W of the cover roofing material 2 is Dividing by 1820 mm gives 5 sheets.
(10010-910) ÷ 1820 = 5 sheets That is, the roof 3 can be accommodated by the standard shape roof material 16 by inserting 5 sheets of the cover roof material 2 into each of the left and right corner building standardized shape roof materials 16b. ..
Compared to the first step, the dimension of the girder direction 13 in the second step is shorter by the horizontal projection dimension Lh of the working length of the cover roofing material 2 on one side, and the working length of the cover roofing material 2 is horizontal on both sides. It is shortened by twice the projected dimension Lh.
Since the horizontal projection dimension Lh of the working length of the cover roof material 2 is 227.5 mm, the dimension in the girder direction 13 is shortened by 455 mm, which is twice as long.
Therefore, the working width dimension of the cover adjusting roof material 17 used for the dimension adjustment of the second stage girder direction 13 is 1820-455 = 1365 mm, but in this embodiment, the cover adjusting roof material 17 of 455 mm and the cover adjusting roof of 910 mm are used. By putting the materials together, the dimension of the girder direction 13 is adjusted so that the working width is 1365 mm.
Similarly, in the third and subsequent steps, the dimension of the girder direction 13 is shortened by 455 mm each time the girder direction 13 is climbed, and the dimension of the girder direction 13 is adjusted by the cover adjusting roof material 17 having a working width dimension of 910 mm.
In the fourth stage, the dimension in the girder direction 13 is adjusted by the cover adjusting roofing material 17 having a working width dimension of 455 mm.
From the 5th stage onward, the cover adjusting roofing material 17 can be arranged in the same manner as in the 1st to 4th stages.
In the 14th stage of the uppermost stage, a three-pronged standardized roof material 16e is arranged in the three-pronged portion 15e, and a land ridge standardized shape roof 16a is arranged in the land ridge portion 15a.
Since the 14th stage roofing finish is the same as the dimensional adjustment of the 2nd stage girder direction 13 in the girder direction 13 of 1365 mm, the cover adjustment roofing material 17 having working widths of 455 mm and 910 mm is used as a base. The land ridge standardized shape roof 16a is placed and stored.

図３（ａ）の左側の屋根面は、桁方向１３からみて右側に隅棟部１５ｂがあり、左側にケラバ部１５ｃがある寄棟切妻混合屋根の屋根面である。
この屋根面では、隅棟１０は右側にしかないため、１段目と２段目の桁方向１３の寸法差はカバー屋根材２の働き長さの水平投影寸法Ｌｈの１倍となる。
片側にしか隅棟１０が存在しない屋根面においてはカバー調整屋根材１７の働き幅寸法は、カバー屋根材２の働き長さの水平投影寸法Ｌｈの１倍以上の整数倍となる。
片側に隅棟部１５ｂがあり、もう一方にケラバ部１５ｃがあり、カバー屋根材２の働き幅寸法Ｗがカバー屋根材２の働き長さの水平投影寸法Ｌｈの８倍である図３（ａ）の屋根面の場合では、ケラバ規格化屋根材１６ｃがカバー屋根材２の働き長さの水平投影寸法Ｌｈの１倍から８倍の８種類が必要となる。
しかし、本実施例ではカバー屋根材２の働き長さの水平投影寸法Ｌｈの１倍の２２７．５mmと２倍の４５５mmと４倍の９１０mmと１８２０mmの４種類の働き幅寸法を持つケラバ規格化屋根材１６ｃ又はカバー調整屋根材１７を組み合わせることで、２２７．５mmずつ変化する８種類の桁方向１３の寸法調整を行っている。
隅棟部１５ｂとケラバ部１５ｃを有する屋根面は、軒先５から陸棟１２に向かって１段登るに際に、桁方向１３に対して隅棟部１５ｂからケラバ部１５ｃに向かう方向にカバー屋根材２をカバー屋根材２の働き長さの水平投影寸法Ｌｈ分の２２７．５mmだけずらして配置する。
１段目は桁方向１３に対して右側の隅棟部１５ｂに、台形面と同様の隅棟規格化形状屋根材１６ｂを配置し、隅棟規格化形状屋根材１６ｂの左方向に順次カバー屋根材２を配置し、ケラバ部１５ｃには働き幅寸法が９１０mmのケラバ規格化形状屋根材１６ｃを配置する。
２段目は隅棟規格化形状屋根材１６ｂ及びカバー屋根材２を配置し、ケラバ部１５ｃに働き幅寸法が２２７．５mmのケラバ規格化屋根材１６ｃと働き幅寸法が４５５mmのカバー調整屋根材１７を配置する。
３段目は隅棟規格化形状屋根材１６ｂ及びカバー屋根材２を配置し、ケラバ部１５ｃに働き幅寸法が４５５mmのケラバ規格化屋根材１６ｃを配置する。
４段目は隅棟規格化形状屋根材１６ｂ及びカバー屋根材２を配置し、ケラバ部１５ｃに働き幅寸法が２２７．５mmのケラバ規格化屋根材１６ｃを配置する。
５段目は隅棟規格化形状屋根材１６ｂ及びカバー屋根材２を配置し、ケラバ部１５ｃに働き幅寸法が１８２０mmのケラバ規格化屋根材１６ｃを配置する。
６段目は隅棟規格化形状屋根材１６ｂ及びカバー屋根材２を配置し、ケラバ部１５ｃに働き幅寸法が２２７．５mmのケラバ規格化屋根材１６ｃと働き幅寸法が４５５mmと９１０mmのカバー調整屋根材１７を配置する。
７段目は隅棟規格化形状屋根材１６ｂ及びカバー屋根材２を配置し、ケラバ部１５ｃに働き幅寸法が４５５mmのケラバ規格化屋根材１６ｃと働き幅寸法が９１０mmのカバー調整屋根材１７を配置する。
８段目は隅棟規格化形状屋根材１６ｂ及びカバー屋根材２を配置し、ケラバ部１５ｃに働き幅寸法が２２７．５mmのケラバ規格化屋根材１６ｃと働き幅寸法が９１０mmのカバー調整屋根材１７を配置する。
９段目以降は１段目から８段目までの配置方法の繰り返しとなる。 The roof surface on the left side of FIG. 3A is a roof surface of a hipped gable mixed roof having a corner ridge portion 15b on the right side and a keraba portion 15c on the left side when viewed from the girder direction 13.
On this roof surface, since the corner ridge 10 is only on the right side, the dimensional difference between the first and second girder directions 13 is one times the horizontal projection dimension Lh of the working length of the cover roofing material 2.
On the roof surface where the corner ridge 10 exists only on one side, the working width dimension of the cover adjusting roofing material 17 is an integral multiple of one or more times the horizontal projection dimension Lh of the working length of the cover roofing material 2.
FIG. 3 (a), which has a corner ridge portion 15b on one side and a keraba portion 15c on the other side, and the working width dimension W of the cover roofing material 2 is eight times the horizontal projection dimension Lh of the working length of the cover roofing material 2. In the case of the roof surface of)), eight types of keraba standardized roofing material 16c are required, which are 1 to 8 times the horizontal projection dimension Lh of the working length of the covering roofing material 2.
However, in this embodiment, the keraba standardization has four types of working width dimensions: 227.5 mm, which is twice the horizontal projection dimension Lh of the working length of the cover roofing material 2, 455 mm, which is twice, and 910 mm and 1820 mm, which are four times. By combining the roofing material 16c or the cover adjusting roofing material 17, eight types of dimensional adjustments in the girder direction 13 that change by 227.5 mm are performed.
The roof surface having the corner ridge portion 15b and the keraba portion 15c is a cover roof in the direction from the corner ridge portion 15b to the keraba portion 15c with respect to the girder direction 13 when climbing one step from the eaves 5 toward the land ridge 12. The material 2 is arranged so as to be offset by 227.5 mm for the horizontal projection dimension Lh of the working length of the cover roof material 2.
In the first stage, the corner ridge standardized shape roofing material 16b similar to the trapezoidal surface is arranged on the corner ridge portion 15b on the right side with respect to the girder direction 13, and the roof is sequentially covered to the left of the corner ridge standardized shape roofing material 16b. The material 2 is arranged, and the keraba standardized roofing material 16c having a working width dimension of 910 mm is arranged in the keraba portion 15c.
In the second stage, the corner ridge standardized shape roofing material 16b and the cover roofing material 2 are arranged, and the keraba standardized roofing material 16c having a working width dimension of 227.5 mm and the cover adjusting roofing material having a working width dimension of 455 mm are arranged on the keraba portion 15c. 17 is arranged.
In the third stage, the corner building standardized shape roofing material 16b and the cover roofing material 2 are arranged, and the keraba standardized roofing material 16c having a working width dimension of 455 mm is arranged in the keraba portion 15c.
In the fourth stage, the corner building standardized shape roofing material 16b and the cover roofing material 2 are arranged, and the keraba standardized roofing material 16c having a working width dimension of 227.5 mm is arranged in the keraba portion 15c.
In the fifth stage, the corner building standardized shape roofing material 16b and the cover roofing material 2 are arranged, and the keraba standardized roofing material 16c having a working width dimension of 1820 mm is arranged in the keraba portion 15c.
In the 6th stage, the corner ridge standardized shape roofing material 16b and the cover roofing material 2 are arranged, and the keraba standardized roofing material 16c having a working width dimension of 227.5 mm and the cover adjustment having working width dimensions of 455 mm and 910 mm are arranged on the keraba portion 15c. The roofing material 17 is arranged.
In the 7th stage, the corner ridge standardized shape roofing material 16b and the cover roofing material 2 are arranged, and the keraba standardized roofing material 16c having a working width dimension of 455 mm and the cover adjusting roofing material 17 having a working width dimension of 910 mm are placed on the keraba portion 15c. Deploy.
In the 8th stage, the corner ridge standardized shape roofing material 16b and the cover roofing material 2 are arranged, and the keraba standardized roofing material 16c having a working width dimension of 227.5 mm and the cover adjusting roofing material having a working width dimension of 910 mm are arranged on the keraba portion 15c. 17 is arranged.
From the 9th stage onward, the arrangement method from the 1st stage to the 8th stage is repeated.

図３（ａ）の台形面の右側に位置する三角面は台形面と基本的には同様なカバー屋根材２の配置になる。
ただし、１３段目と１４段目は台形面と異なり、１３段目は隅棟規格化形状屋根材１６ｂが配置され、１４段目は三又部１５ｅに三又規格化形状屋根材１６ｅが配置される。 The triangular surface located on the right side of the trapezoidal surface in FIG. 3A has basically the same arrangement of the cover roofing material 2 as the trapezoidal surface.
However, unlike the trapezoidal surface, the 13th and 14th steps have the corner ridge standardized roofing material 16b placed on the 13th step, and the three-pronged standardized roofing material 16e placed on the three-pronged portion 15e on the 14th step. Will be done.

図３（ａ）の台形面の陸棟１２の反対側に位置する平行四辺形面は隅棟１０と谷１１が平行に位置している。
平行四辺形面のカバー屋根材２と規格化形状屋根材１６の配置方法は、隅棟部１５ｂに台形面と同様の隅棟規格化形状屋根材１６ｂを配置し、谷部１５ｆに谷規格化形状屋根材１６ｆを配置し、その間にカバー屋根材２と働き幅寸法が９１０mmのカバー調整屋根材１７を配置する。
軒先５から陸棟１２に向かって１段登るに際に、桁方向１３に対して隅棟部１５ｂから谷部１５ｆに向かう方向にカバー屋根材２をカバー屋根材２の働き長さの水平投影寸法Ｌｈ分の２２７．５mmだけずらして配置する。 In the parallelogram surface of the trapezoidal surface of FIG. 3A located on the opposite side of the land ridge 12, the corner ridge 10 and the valley 11 are located in parallel.
As for the method of arranging the cover roofing material 2 and the standardized shape roofing material 16 on the parallelogram surface, the corner ridge standardized shape roofing material 16b similar to the trapezoidal surface is arranged on the corner ridge portion 15b, and the valley standardization is performed on the valley portion 15f. The shape roofing material 16f is arranged, and the cover roofing material 2 and the cover adjusting roofing material 17 having a working width dimension of 910 mm are arranged between them.
When climbing one step from the eaves 5 toward the land ridge 12, the cover roofing material 2 is horizontally projected on the girder direction 13 in the direction from the corner ridge portion 15b to the valley portion 15f. The arrangement is shifted by 227.5 mm for the dimension Lh.

図３（ａ）の台形面の上側に位置する谷部１５ｆとケラバ部１５ｃを有する屋根面は、軒先５から陸棟１２に向かって１段登るに際に、桁方向１３に対してケラバ部１５ｃから谷部１５ｆに向かう方向にカバー屋根材２をカバー屋根材２の働き長さの水平投影寸法Ｌｈ分の２２７．５mmだけずらして配置する。
１段目は桁方向１３に対して左側の谷部１５ｆに谷規格化形状屋根材１６ｆを配置し、谷規格化形状屋根材１６ｆの右方向にカバー屋根材２を配置する。
２段目は谷規格化形状屋根材１６ｆ及びカバー屋根材２を配置し、ケラバ部１５ｃに働き幅寸法が２２７．５mmのケラバ規格化屋根材１６ｃを配置する。
３段目は谷規格化形状屋根材１６ｆ及びカバー屋根材２を配置し、ケラバ部１５ｃに働き幅寸法が４５５mmのケラバ規格化屋根材１６ｃを配置する。
４段目は谷規格化形状屋根材１６ｆ及びカバー屋根材２を配置し、ケラバ部１５ｃに働き幅寸法が２２７．５mmのケラバ規格化屋根材１６ｃと４５５mmのカバー調整屋根材１７を配置する。
５段目は谷規格化形状屋根材１６ｆ及びカバー屋根材２を配置し、ケラバ部１５ｃに働き幅寸法が９１０mmのケラバ規格化屋根材１６ｃを配置する。
６段目は谷規格化形状屋根材１６ｆ及びカバー屋根材２を配置し、ケラバ部１５ｃに働き幅寸法が２２７．５mmのケラバ規格化屋根材１６ｃと９１０mmのカバー調整屋根材１７を配置する。
７段目は谷規格化形状屋根材１６ｆ及びカバー屋根材２を配置し、ケラバ部１５ｃに働き幅寸法が４５５mmのケラバ規格化屋根材１６ｃと９１０mmのカバー調整屋根材１７を配置する。
８段目は谷規格化形状屋根材１６ｆ及びカバー屋根材２を配置し、ケラバ部１５ｃに働き幅寸法が２２７．５mmのケラバ規格化屋根材１６ｃと４５５mmと９１０mmのカバー調整屋根材１７を配置する。
９段目以降は１段目から８段目までの配置方法の繰り返しとなる。 The roof surface having the valley portion 15f and the keraba portion 15c located above the trapezoidal surface of FIG. 3A shows the keraba portion with respect to the girder direction 13 when climbing one step from the eaves 5 toward the land ridge 12. The cover roofing material 2 is arranged so as to be offset by 227.5 mm for the horizontal projection dimension Lh of the working length of the cover roofing material 2 in the direction from 15c to the valley portion 15f.
In the first stage, the valley standardized roofing material 16f is arranged in the valley portion 15f on the left side with respect to the girder direction 13, and the cover roofing material 2 is arranged in the right direction of the valley standardized roofing material 16f.
In the second stage, the valley standardized roofing material 16f and the cover roofing material 2 are arranged, and the keraba standardized roofing material 16c having a working width dimension of 227.5 mm is arranged in the keraba portion 15c.
In the third stage, the valley standardized roofing material 16f and the cover roofing material 2 are arranged, and the keraba standardized roofing material 16c having a working width dimension of 455 mm is arranged in the keraba portion 15c.
In the fourth stage, the valley standardized roofing material 16f and the cover roofing material 2 are arranged, and the keraba standardized roofing material 16c having a working width dimension of 227.5 mm and the cover adjusting roofing material 17 having a working width of 455 mm are arranged in the keraba portion 15c.
In the fifth stage, the valley standardized roofing material 16f and the cover roofing material 2 are arranged, and the keraba standardized roofing material 16c having a working width dimension of 910 mm is arranged in the keraba portion 15c.
In the sixth stage, the valley standardized roofing material 16f and the cover roofing material 2 are arranged, and the keraba standardized roofing material 16c having a working width dimension of 227.5 mm and the cover adjusting roofing material 17 having a working width of 910 mm are arranged in the keraba portion 15c.
In the 7th stage, the valley standardized roofing material 16f and the cover roofing material 2 are arranged, and the keraba standardized roofing material 16c having a working width dimension of 455 mm and the cover adjusting roofing material 17 having a working width dimension 17 are arranged in the keraba portion 15c.
In the 8th stage, the valley standardized roofing material 16f and the cover roofing material 2 are arranged, and the keraba standardized roofing material 16c with a working width dimension of 227.5 mm and the cover adjusting roofing material 17 of 455 mm and 910 mm are arranged in the keraba portion 15c. To do.
From the 9th stage onward, the arrangement method from the 1st stage to the 8th stage is repeated.

図３（ｂ）は、寄棟切妻混合屋根の下屋の屋根割り付け図であり、基本的には図３（ａ）の割り付けと同じルールにて配置している。
下屋における特徴的な納まりは屋根面の頂部が建物の壁と接する壁際部１５ｄである。
壁際部１５ｄにおけるカバー屋根材２の配置方法についてだが、桁方向１３と平行な壁際部１５ｄについては陸棟部１５ａと同様の納まりとなり、壁の厚みや納まりにより例外はあるが基本的には陸棟規格化形状屋根材１５ａが壁際規格化形状屋根材１５ｄとして共用できる。
桁方向１３と平行な壁際部１５ｄは平行壁際という名称で呼ばれる。
また、流れ方向１４と平行な壁際部１５ｄについてはケラバ部１５ｃと同様の納まりとなり、壁の厚みや納まりにより例外はあるが基本的にはケラバ規格化形状屋根材１５ｃが壁際規格化形状屋根材１５ｄとして共用できる。
流れ方向１４と平行な壁際部１５ｄは流れ壁という名称で呼ばれる。
なお、カバー屋根材２の流れ方向１４における前記水平投影葺き始め位置７は、陸棟芯９を基準とすると記載しているが、流れ方向１４の最上段が陸棟部１５aではなく壁際部１５ｄの場合は、陸棟芯９を壁芯に置き換え、かつ水平投影棟際寸法ＭＬｈを水平投影壁際寸法に置き換えることで壁際部１５ｄの場合においても同様の作用効果を得ることが出来る。 FIG. 3B is a roof allocation diagram of the lower hipped roof with a mixed gable roof, and is basically arranged according to the same rules as the allocation in FIG. 3A.
The characteristic fit in the lower house is the wall edge 15d where the top of the roof surface is in contact with the wall of the building.
Regarding the method of arranging the cover roofing material 2 at the wall edge portion 15d, the wall edge portion 15d parallel to the girder direction 13 has the same fit as the land ridge portion 15a, and there are exceptions depending on the wall thickness and fit, but basically the land ridge standard. The modified shape roofing material 15a can be shared as the standardized shape roofing material 15d near the wall.
The wall edge portion 15d parallel to the girder direction 13 is called a parallel wall edge.
Further, the wall edge portion 15d parallel to the flow direction 14 has the same fit as the keraba portion 15c, and although there are exceptions depending on the wall thickness and fit, basically the keraba standardized shape roofing material 15c is the wall side standardized shape roofing material. It can be shared as 15d.
The wall edge portion 15d parallel to the flow direction 14 is called a flow wall.
It is described that the horizontal projection start position 7 in the flow direction 14 of the cover roof material 2 is based on the land ridge core 9, but when the uppermost stage of the flow direction 14 is not the land ridge portion 15a but the wall edge portion 15d, By replacing the land ridge core 9 with the wall core and replacing the horizontal projection ridge edge dimension MLh with the horizontal projection wall edge dimension, the same effect can be obtained even in the case of the wall edge portion 15d.

図４は実施例によるカバー軒先部材６の投影図である。三面図として形状を表している。
図４（ａ）はカバー軒先部材６を正面図、平面図、右側面図の三面図であらわした製品図面である。
カバー軒先部材６の全幅寸法は１８７０mmで、図示はしていないが横重なり寸法２０を５０mm程度とするので、働き幅寸法は１８２０mmとしている。
全長さ寸法は３０２mmとする。
軒先側に既存屋根材裏面カバー部８を設け、既存屋根材１の軒先裏面を覆うことができる。
既存屋根材１が軒先５で重なって施工されるため、既存屋根材１の重なり厚み寸法以上の頭見附部２３の寸法としている。
実施例では、６mmの既存屋根材１が２枚重なった厚み寸法以上の頭見附部２３の寸法が必要であり、頭見附部２３の厚み寸法は１９mmとしている。
既存屋根材裏面カバー部８をコの字形状にすることで施工が容易に行える。
また、施工後の強風時にも、コの字形状で既存屋根材１の裏面と係合することで耐風性能を発揮することが出来る。
図４（ｂ）は図４（ａ）を約２．７倍に拡大した三面図であり、正面図と平面図は省略線により省略して記載している。
平面図と右側面図には、勾配４が４寸勾配の時の働き長さ寸法とカバー屋根材２の葺き始めを行う範囲である葺き始め設定範囲Ｒを記載している。
葺き始め設定範囲Ｒを平面図上に点線であらわしているが、この葺き始め設定範囲Ｒは屋根３の勾配４が変わることで変化する相対的な範囲であり、実際に形状として製品に表されてはいない。
例えば勾配４が３寸勾配であれば、働き長さ寸法と葺き始め設定範囲Ｒは３寸勾配の勾配伸び率により変化する。
３寸勾配の勾配伸び率は１．０４４なので働き長さの水平投影寸法Ｌｈ２２７．５mmに１．０４４を掛け働き長さ寸法と葺き始め設定範囲Ｒは２３７．５mmとなる。
カバー軒先部材６の尻端部には尻端部折り曲げ２６を設ける。
尻端部折り曲げ２６は、１８０度で折り返すことにより雨水の浸入を防ぎながら、厚みを出さないことでカバー屋根材２を施工する際にもカバー屋根材２と干渉することがない。
カバー軒先部材６の既存屋根材裏面カバー部８は、頭見附部２３を１７mm、裏面カバー部の２０mmを２mmのテーパーとすることで、既存屋根材１の厚みが水和膨張などの経年変化により厚みが増した場合においても、既存屋根材裏面カバー部８を差し込みやすく、かつ既存屋根材裏面カバー部８と既存屋根材１とのクリアランスを少なくすることが出来る。 FIG. 4 is a projection drawing of the cover eaves member 6 according to the embodiment. The shape is shown as a three-view view.
FIG. 4A is a product drawing showing the cover eaves tip member 6 in three views of a front view, a plan view, and a right side view.
The overall width dimension of the cover eaves member 6 is 1870 mm, and although not shown, the horizontal overlapping dimension 20 is about 50 mm, so the working width dimension is 1820 mm.
The total length dimension is 302 mm.
The back surface of the existing roofing material 8 can be provided on the eaves side to cover the back surface of the eaves of the existing roofing material 1.
Since the existing roofing material 1 is constructed so as to overlap with the eaves 5, the size of the head Mitsuke portion 23 is set to be larger than the overlapping thickness dimension of the existing roofing material 1.
In the embodiment, it is necessary that the head-mounted portion 23 has a thickness equal to or larger than the thickness of two 6 mm existing roofing materials 1 overlapped with each other, and the thickness of the head-mounted portion 23 is 19 mm.
Construction can be easily performed by forming the back cover portion 8 of the existing roofing material into a U shape.
Further, even in a strong wind after construction, the wind resistance can be exhibited by engaging with the back surface of the existing roofing material 1 in a U shape.
FIG. 4B is a three-view view obtained by enlarging FIG. 4A by about 2.7 times, and the front view and the plan view are omitted by omitting lines.
In the plan view and the right side view, the working length dimension when the gradient 4 is a 4 inch gradient and the roofing start setting range R which is the range for starting the roofing of the cover roofing material 2 are described.
The roofing start setting range R is represented by a dotted line on the plan view, but this roofing start setting range R is a relative range that changes as the slope 4 of the roof 3 changes, and is actually represented in the product as a shape. Not.
For example, if the gradient 4 is a 3-dimensional gradient, the working length dimension and the roofing start setting range R change depending on the gradient elongation rate of the 3-dimensional gradient.
Since the gradient elongation rate of the 3-dimensional gradient is 1.044, the horizontal projection dimension Lh227.5 mm of the working length is multiplied by 1.044 to obtain the working length dimension and the setting range R of the start of roofing to be 237.5 mm.
A butt end bending 26 is provided at the butt end of the cover eaves member 6.
The tail end bending 26 prevents rainwater from entering by folding back at 180 degrees, and does not interfere with the cover roofing material 2 even when the cover roofing material 2 is constructed by not increasing the thickness.
The back cover portion 8 of the existing roofing material of the cover eaves member 6 has a taper of 17 mm for the head end portion 23 and 2 mm for 20 mm of the back cover portion, so that the thickness of the existing roofing material 1 is changed over time such as hydration expansion. Even when the thickness is increased, the existing roofing material back cover portion 8 can be easily inserted, and the clearance between the existing roofing material back cover portion 8 and the existing roofing material 1 can be reduced.

図５は実施例によるカバー軒先部材６の斜視図であり、図４の三面図の形状を斜視図にしている。
図５（ａ）はカバー軒先部材６を頭見附部２３側の上面方向から見た斜視図である。
図５（ｂ）はカバー軒先部材６を右側面の上面方向から見た斜視図である。 FIG. 5 is a perspective view of the cover eaves member 6 according to the embodiment, and the shape of the three views of FIG. 4 is a perspective view.
FIG. 5A is a perspective view of the cover eaves tip member 6 as viewed from the upper surface direction on the head mounting portion 23 side.
FIG. 5B is a perspective view of the cover eaves tip member 6 as viewed from the upper surface direction of the right side surface.

図６は実施例によるカバー屋根材２の投影図及び施工断面図である。
図６の製品における製品設計モジュールは尺モジュールであり、建物の設計単位寸法Ｐも尺モジュールであり、１Ｐ＝９１０mmである。
図６（ａ）はカバー屋根材２を６面図であらわしている。
図６（ｂ）は図６（ａ）を拡大して幅方向を省略線で省略した３面図である。
図６（ｃ）は図６（ｂ）を更に拡大して上下段の施工状態をあらわした施工断面図である。 FIG. 6 is a projection drawing and a construction sectional view of the cover roofing material 2 according to the embodiment.
The product design module in the product of FIG. 6 is a scale module, and the design unit dimension P of the building is also a scale module, and 1P = 910 mm.
FIG. 6A shows the cover roofing material 2 in a six-view view.
FIG. 6B is a three-view view obtained by enlarging FIG. 6A and omitting the width direction with an ellipsis line.
FIG. 6 (c) is a construction cross-sectional view showing the construction state of the upper and lower stages by further enlarging FIG. 6 (b).

図６（ａ）の実施例の製品は、建物の勾配４を有する屋根３で既存屋根材１の上に段葺きで葺かれるカバー屋根材２である。
尻側係合部２５はカバー屋根材２の本体と別パーツになっており、アセンブリされた状態の図面である。
カバー屋根材２の働き長さの水平投影寸法Ｌｈは建物の設計単位寸法Ｐである９１０mmの四分の一であり、２２７．５mmである。
図６の製品は、勾配４を４寸勾配で設定した寸法であり、働き長さ寸法Ｌは働き長さの水平投影寸法Ｌｈに４寸勾配の勾配伸び率を掛けた寸法である。
４寸勾配の勾配伸び率である１．０７７を２２７．５mmに掛けると働き長さ寸法Ｌは２４５mmとなる。
カバー屋根材２の働き幅寸法Ｗは１８２０mmであり、カバー屋根材２の働き長さの水平投影寸法Ｌｈである２２７．５mmの８倍の関係である。
カバー屋根材２は本体と尻側係合部２５のパーツで構成され、本体の頭側に頭側係合部２４を設けた構成になっている。
さらに本体の尻側６に尻側係合部２５のパーツを設け、前記尻側係合部２５のパーツは、尻側に設けた尻端部折り曲げ２６と合わせた位置に設けた構成となっている。
カバー屋根材２の全長さＬは２８５mmであり、流れ重なり寸法１９は４０mmである。
カバー屋根材２の全幅ＷＡは１９００mmであり、横重なり寸法２０は８０mmである。
尻側係合部２５のパーツの全幅ＷＡは１８２０mmであり、カバー屋根材２の働き幅Ｗと同一寸法である。
前記尻側係合部２５のパーツは、平面図での本体右端と尻側係合部２５のパーツ右端を合わせた位置に設けるので本体の左端と尻側係合部２５のパーツの左端との間に横重なり寸法２０の８０mmが存在する。
正面図では、頭側係合部２４の右端下端部を横重なり寸法２０である８０mmと同寸法の頭側切り欠き部が存在する。
カバー屋根材２の尻側に本体の一方の側端から他方の側端まで連続して一定高さを有した尻端部折り曲げ２６を設ける。
実施例では、本体の尻側端部に垂直に立ち上げた尻端部折り曲げ２６を頭側からみて右側端から左側端まで連続して一定高さで設ける。
製品の裏面には、裏面断熱バックアップ材を設ける。
裏面断熱バックアップ材は全幅ＷＡが１８２０mmであり、平面図での本体左端と裏面断熱バックアップ材の左端を合わせた位置に設けるので、横重なり寸法２０である８０mmの範囲は横隣のカバー屋根材２が重なるため裏面断熱バックアップ材は存在しない。 The product of the embodiment of FIG. 6A is a cover roofing material 2 that is roofed with a step roof on the existing roofing material 1 with a roof 3 having a slope 4 of the building.
The butt-side engaging portion 25 is a separate part from the main body of the cover roofing material 2, and is a drawing in an assembled state.
The horizontal projection dimension Lh of the working length of the cover roofing material 2 is a quarter of the design unit dimension P of the building, 910 mm, and is 227.5 mm.
The product of FIG. 6 has a dimension in which the gradient 4 is set with a 4 inch gradient, and the working length dimension L is a dimension obtained by multiplying the horizontal projection dimension Lh of the working length by the gradient elongation rate of the 4 inch gradient.
When 1.077, which is the gradient elongation rate of a 4-dimensional gradient, is multiplied by 227.5 mm, the working length dimension L becomes 245 mm.
The working width dimension W of the cover roofing material 2 is 1820 mm, which is eight times the horizontal projection dimension Lh of the working length of the cover roofing material 2 of 227.5 mm.
The cover roof material 2 is composed of a main body and parts of the tail side engaging portion 25, and has a configuration in which the head side engaging portion 24 is provided on the head side of the main body.
Further, a part of the buttock side engaging portion 25 is provided on the buttock side 6 of the main body, and the part of the buttock side engaging portion 25 is provided at a position combined with the buttock end bending 26 provided on the buttock side. There is.
The total length L of the cover roofing material 2 is 285 mm, and the flow overlap dimension 19 is 40 mm.
The total width WA of the cover roofing material 2 is 1900 mm, and the horizontal overlapping dimension 20 is 80 mm.
The total width WA of the parts of the tail side engaging portion 25 is 1820 mm, which is the same dimension as the working width W of the cover roofing material 2.
Since the parts of the butt-side engaging portion 25 are provided at positions where the right end of the main body and the right end of the parts of the butt-side engaging portion 25 are aligned in the plan view, the left end of the main body and the left end of the parts of the butt-side engaging portion 25 There is 80 mm with a horizontal overlapping dimension of 20 between them.
In the front view, the right end lower end portion of the head side engaging portion 24 is laterally overlapped, and there is a head side notch portion having the same dimension as 80 mm, which is the dimension 20.
A butt end bending 26 having a constant height is provided on the butt side of the cover roof material 2 continuously from one side end of the main body to the other side end.
In the embodiment, the buttock end bending 26 that is raised perpendicularly to the buttock side end of the main body is provided continuously at a constant height from the right end to the left end when viewed from the head side.
A back-back insulation backup material is provided on the back surface of the product.
The back surface insulation backup material has a total width WA of 1820 mm, and is provided at the position where the left end of the main body and the left end of the back surface insulation backup material are aligned in the plan view. There is no back-side insulation backup material because of the overlap.

図６（ｂ）は図６（ａ）を拡大して幅方向を省略線で省略した３面図であり、カバー屋根材２の正面図、平面図、右側面図である。
正面図での右側には頭側切り欠き部を設ける。
頭側切り欠き部の側端は、横葺きする際の位置決め基準として機能する。
右側面図では、本体の裏面に設けた裏面断熱バックアップ材は尻側から頭側に向かって厚みを増しているが、この厚みを増す角度はカバー屋根材２の屋根に施工した際のカバー屋根材２の戻り勾配とほぼ同じ角度になっていて、施工の際には裏面断熱バックアップ材でカバー屋根材２と屋根下地との間の空間を埋めることが出来るので、施工の際に荷重がかかっても変形しにくい。 6 (b) is a three-view view obtained by enlarging FIG. 6 (a) and omitting the width direction with omitted lines, and is a front view, a plan view, and a right side view of the cover roofing material 2.
A notch on the head side is provided on the right side in the front view.
The side edge of the cranial notch functions as a positioning reference when laying sideways.
In the right side view, the back surface heat insulating backup material provided on the back surface of the main body increases in thickness from the tail side to the head side, and the angle of increasing the thickness is the cover roof when it is applied to the roof of the cover roof material 2. The angle is almost the same as the return slope of the material 2, and the space between the cover roof material 2 and the roof base can be filled with the backside heat insulating backup material during construction, so a load is applied during construction. But it is hard to deform.

図６（ｃ）は図６（ｂ）を更に拡大して上下段の施工状態をあらわした施工断面図であり、段葺きの際に上段の頭側係合部２４と下段の尻側係合部２５のパーツを留め付け材２８で固定する施工状況をあらわしている。
本体の尻側に設けた尻側係合部２５のパーツは、尻側に設けた尻端部折り曲げ２６と合わせた位置に設けた構成となっている。
尻側係合部２５のパーツは、Ｚ形状の断面形状である。
この尻側係合部２５は、カバー屋根材２の働き長さ寸法Ｌを可変させる機能を有し、段葺きの際に上段の頭側係合部２４と下段の尻側係合部２５を当て止めさせることでカバー屋根材２の働き長さ寸法Ｌを決定する。
尻側係合部２５のパーツは、勾配４ごとに長さを設定することで本体の寸法を変えることなく勾配４ごとの働き長さ寸法Ｌを設定することが出来る。
本体の尻側で尻側係合部２５のパーツを留め付け材２８で共打ちすることで屋根下地に固定する。
尻側係合部２５のパーツを固定する工程で本体を同時に固定するため施工手間を省くことが出来る。
実施例の本体は、表面に塗装を施した塗装溶融５５％アルミニウム−亜鉛合金めっき鋼板の基材厚み寸法で０．３５mm〜０．６mm程度の薄板鋼板が好ましい。
実施例の尻側係合部２５のパーツの材質はアルミニウムで厚さ１．５mmの押出成形品としているが、本体と同じ塗装溶融５５％アルミニウム−亜鉛合金めっき鋼板の薄板を使用しても良い。
薄板鋼板を用いる場合は、基材の厚みを厚くするとか、二重折りで製作するなどの耐風強度を上げるための工夫が必要となる。 FIG. 6 (c) is a construction cross-sectional view showing the construction state of the upper and lower stages by further enlarging FIG. 6 (b). It shows the construction situation where the parts of the part 25 are fixed by the fastening material 28.
The parts of the buttock side engaging portion 25 provided on the buttock side of the main body are configured to be provided at a position aligned with the buttock end bending 26 provided on the buttock side.
The parts of the tail side engaging portion 25 have a Z-shaped cross section.
The tail-side engaging portion 25 has a function of varying the working length dimension L of the cover roofing material 2, and during step-roofing, the upper head-side engaging portion 24 and the lower tail-side engaging portion 25 are engaged. The working length dimension L of the cover roofing material 2 is determined by making it rest.
By setting the length of the part of the tail side engaging portion 25 for each gradient 4, the working length dimension L for each gradient 4 can be set without changing the dimension of the main body.
On the buttock side of the main body, the parts of the buttock side engaging portion 25 are fixed to the roof base by co-striking with the fastening material 28.
Since the main body is fixed at the same time in the process of fixing the parts of the buttock side engaging portion 25, the construction work can be saved.
The main body of the embodiment is preferably a thin steel plate having a base material thickness of about 0.35 mm to 0.6 mm, which is a coated and melted 55% aluminum-zinc alloy plated steel sheet whose surface is coated.
The material of the part of the tail side engaging portion 25 of the embodiment is aluminum and is an extruded product having a thickness of 1.5 mm, but a thin plate of 55% aluminum-zinc alloy plated steel plate, which is the same as the main body, may be used. ..
When using a thin steel plate, it is necessary to take measures to increase the wind resistance, such as increasing the thickness of the base material or manufacturing it by double folding.

図７は図６の実施例によるカバー屋根材２の斜視図である。
図７（ａ）は製品全体を上面側から見た斜視図である。
尻側係合部２５のパーツは、留め付け材２８で留め付けるための穴加工を施している。
尻側係合部２５のパーツに留め付け材２８固定用の穴をあらかじめ設けておくことで、留め付けピッチ、留め付け本数などを現場で確実に実施することが出来る。
留め付け材２８で本体の尻側と尻側係合部２５のパーツを共打ち固定することで固定強度が向上し、かつ施工性が向上する。
図７（ｂ）は本体の頭側を拡大した斜視図である。
頭側係合部２４は頭見附部２３から連続しており曲げ加工し製作する。
頭側係合部２４の先端部に折り返しを設ける。
折り返しは潰し形状とせずにＲ形状で加工することにより尻側係合部２５のパーツとの連結時に面で固定できる。また、潰し形状とせずにＲ形状とすることで塗膜層やメッキ層のクラック防止にも役立つ。
図２（ｃ）は本体と尻側係合部２５のパーツがアセンブリされている尻部を拡大した斜視図である。
本体の尻側端部を立ち上げた尻端部折り曲げ２６を水返しとしての防水機能と同時に働き長さの位置決め基準としての位置決め機能としても利用している。
尻端部折り曲げ２６の立ち上がり部と尻側係合部２５のパーツを当て止めすることで、施工現場で測定などをすることなく簡易に位置決めをすることが出来る。
尻側係合部２５のパーツの長さを勾配４ごとに設定することで、本体は１種類で複数種類の勾配４に適した働き長さ寸法Ｌにすることが出来る。 FIG. 7 is a perspective view of the cover roofing material 2 according to the embodiment of FIG.
FIG. 7A is a perspective view of the entire product as viewed from the upper surface side.
The parts of the buttock side engaging portion 25 are provided with holes for fastening with the fastening material 28.
By providing a hole for fixing the fastening material 28 in advance in the part of the buttock side engaging portion 25, the fastening pitch, the number of fastenings, and the like can be reliably performed at the site.
By fixing the parts of the buttock side and the buttock side engaging portion 25 of the main body together with the fastening material 28, the fixing strength is improved and the workability is improved.
FIG. 7B is an enlarged perspective view of the head side of the main body.
The head side engaging portion 24 is continuous from the head mounting portion 23 and is manufactured by bending.
A fold is provided at the tip of the head side engaging portion 24.
By processing the fold back into an R shape instead of a crushed shape, it can be fixed on the surface when the buttock side engaging portion 25 is connected to the parts. Further, the R shape is used instead of the crushed shape, which helps prevent cracks in the coating film layer and the plating layer.
FIG. 2C is an enlarged perspective view of the buttock portion in which the main body and the parts of the buttock side engaging portion 25 are assembled.
The butt end bending 26 that raises the butt end of the main body is used not only as a waterproof function as a water return but also as a positioning function as a positioning reference for the working length.
By abutting the rising portion of the butt end bending 26 and the parts of the butt side engaging portion 25, positioning can be easily performed without measuring at the construction site.
By setting the length of the parts of the tail-side engaging portion 25 for each gradient 4, one type of main body can have a working length dimension L suitable for a plurality of types of gradients 4.

図８は図１の実施例による規格化形状屋根材１６及びカバー調整屋根材１７の斜視図である。
図８（ａ）は軒先５から見て左の隅棟部１５ｂに配置する隅棟左規格化形状屋根材１６ｂである。
右隣りの屋根材に横重なり部で上から被さるので、頭側切り欠き部を有している。
働き幅寸法は、カバー屋根材２の働き長さの水平投影寸法Ｌｈの二倍の４５５mmであり、全幅寸法も働き幅寸法と同じ寸法である。
頭側には頭見附部２３、尻端部には尻端部折り曲げ２６を設ける。
図８（ｂ）は軒先５から見て右の隅棟部１５ｂに配置する隅棟右規格化形状屋根材１６ｂである。
左隣りの屋根材に横重なり部で下に重なるので、横重なり寸法２０分だけ全幅寸法が働き幅寸法より長い。
働き幅寸法は、カバー屋根材２の働き長さの水平投影寸法Ｌｈの二倍の４５５mmであり、全幅寸法は横重なり寸法２０である８０mmだけ長いため５３５mmとなる。
頭側には頭見附部２３、尻端部には尻端部折り曲げ２６を設ける。
図８（ｃ）は寄棟三角屋根面の頂部の三又部１５ｅに配置する三又規格化形状屋根材１６ｅである。
働き幅寸法は、カバー屋根材２の働き長さの水平投影寸法Ｌｈの二倍の４５５mmであり、全幅寸法も働き幅寸法と同じ寸法である。
頭側には頭見附部２３を設ける。
図８（ｄ）は桁方向１３の寸法調整の際に配置するカバー調整屋根材１７である。
図１（ａ）の実施例では桁方向１３の寸法調整を行うカバー調整屋根材１７は、働き長さの水平投影寸法Ｌｈの２倍の４５５mm、４倍の９１０mmの働き幅寸法を有した２種類を示しているが、図８（ｄ）の斜視図は働き幅寸法が４５５mmの製品のみを図示している。
右隣りの屋根材に横重なり部で上から被さるので、頭側切り欠き部を有し、左隣りの屋根材に横重なり部で下に重なるので、横重なり寸法２０の分だけ全幅寸法が働き幅寸法より長い。
図示されている製品の働き幅寸法は４５５mmであり、全幅寸法は横重なり寸法２０である８０mmだけ長い５３５mmとなる。
頭側には頭見附部２３、尻端部には尻端部折り曲げ２６を設ける。 FIG. 8 is a perspective view of the standardized shape roofing material 16 and the cover adjusting roofing material 17 according to the embodiment of FIG.
FIG. 8A is a corner ridge left standardized shape roofing material 16b arranged in the corner ridge portion 15b on the left side when viewed from the eaves 5.
Since it covers the roofing material on the right side from above with a laterally overlapping portion, it has a notch on the head side.
The working width dimension is 455 mm, which is twice the horizontal projection dimension Lh of the working length of the cover roofing material 2, and the total width dimension is also the same as the working width dimension.
A head reference portion 23 is provided on the head side, and a butt end bending 26 is provided on the butt end portion.
FIG. 8B is a corner ridge right standardized shape roofing material 16b arranged in the corner ridge portion 15b on the right side when viewed from the eaves 5.
Since it overlaps the roofing material on the left side at the horizontal overlapping part, the total width dimension is longer than the working width dimension by the horizontal overlapping dimension of 20 minutes.
The working width dimension is 455 mm, which is twice the horizontal projection dimension Lh of the working length of the cover roofing material 2, and the total width dimension is 535 mm because it is 80 mm longer than the horizontal overlapping dimension 20.
A head reference portion 23 is provided on the head side, and a butt end bending 26 is provided on the butt end portion.
FIG. 8C is a three-pronged standardized roofing material 16e arranged at the three-pronged portion 15e at the top of the hipped roof triangular roof surface.
The working width dimension is 455 mm, which is twice the horizontal projection dimension Lh of the working length of the cover roofing material 2, and the total width dimension is also the same as the working width dimension.
A head reference portion 23 is provided on the head side.
FIG. 8D is a cover adjusting roofing material 17 arranged at the time of dimension adjustment in the girder direction 13.
In the embodiment of FIG. 1A, the cover adjusting roofing material 17 that adjusts the dimension in the girder direction 13 has a working width dimension of 455 mm, which is twice the horizontal projection dimension Lh of the working length, and 910 mm, which is four times the working length. Although the types are shown, the perspective view of FIG. 8D shows only the products having a working width dimension of 455 mm.
Since it covers the roofing material on the right side from above with the horizontal overlapping part, it has a notch on the head side, and since it overlaps the roofing material on the left side with the horizontal overlapping part, the full width dimension works by the horizontal overlapping dimension of 20. Longer than the width dimension.
The working width dimension of the illustrated product is 455 mm, and the total width dimension is 535 mm, which is 80 mm longer than the horizontal overlapping dimension of 20.
A head reference portion 23 is provided on the head side, and a butt end bending 26 is provided on the butt end portion.

本発明は、実施例においては既存屋根材１を住宅屋根用化粧スレートとし、カバー屋根材２を金属製のリフォーム用長尺横葺きモジュール屋根材として記載したが、既存屋根材１及びカバー屋根材２は実施例における屋根材の素材に限定するものではない。
既存屋根材１及びカバー屋根材２の素材としては、セメント、セラミックス、アスファルト系素材、樹脂系素材などの屋根材に広く適用することが出来る。
また、建物の設計単位寸法Ｐは実施例では尺モジュールだけの記載だが、建物の設計単位寸法Ｐはメーターモジュールでもインチモジュールでも利用できる。 In the present invention, the existing roofing material 1 is used as a decorative slate for a residential roof and the cover roofing material 2 is described as a long horizontal roofing module roofing material for metal reform in the examples. However, the existing roofing material 1 and the cover roofing material are described. 2 is not limited to the material of the roofing material in the examples.
As the material of the existing roofing material 1 and the cover roofing material 2, it can be widely applied to roofing materials such as cement, ceramics, asphalt-based materials, and resin-based materials.
Further, although the design unit dimension P of the building is described only for the scale module in the embodiment, the design unit dimension P of the building can be used for both the meter module and the inch module.

１ 既存屋根材
２ カバー屋根材
３ 屋根
４ 勾配
５ 軒先
６ カバー軒先部材
７ 水平投影葺き始め位置
８ 既存屋根材裏面カバー部
９ 陸棟芯
１０ 隅棟
１１ 谷
１２ 陸棟
１３ 桁方向
１４ 流れ方向
１５ 屋根端部
１５a 陸棟部
１５ｂ 隅棟部
１５ｃ ケラバ部
１５ｄ 壁際部
１５ｅ 三又部
１５ｆ 谷部
１５ｇ 曲がり部
１６ 規格化形状屋根材
１６ａ 陸棟規格化形状屋根材
１６ｂ 隅棟規格化形状屋根材
１６ｃ ケラバ規格化形状屋根材
１６ｄ 壁際規格化形状屋根材
１６ｅ 三又規格化形状屋根材
１６ｆ 谷規格化形状屋根材
１６ｇ 曲がり規格化形状屋根材
１７ カバー調整屋根材
１８ 軒の出寸法
１９ 流れ重なり寸法
２０ 横重なり寸法
２１ 端部隙間寸法
２２ 下葺き材
２３ 頭見附部
２４ 頭側係合部
２５ 尻側係合部
２６ 尻端部折り曲げ
２７ 横重なり部
２８ 留め付け材
Ｌｈ カバー屋根材の働き長さの水平投影寸法
Ｌ カバー屋根材の働き長さ寸法
Ｗ カバー屋根材の働き幅寸法
ＷＡ カバー屋根材の全幅寸法
Ｒｈ 水平投影葺き始め設定範囲
Ｒ 葺き始め設定範囲
ＭＬｈ 水平投影棟際寸法
Ｐ 建物の設計単位寸法 1 Existing roofing material 2 Cover roofing material 3 Roof 4 Slope 5 Eaves 6 Cover eaves member 7 Horizontal projection roofing start position 8 Existing roofing material Back cover 9 Land ridge core 10 Corner ridge 11 Valley 12 Land ridge 13 Girder direction 14 Flow direction 15 Roof edge Part 15a Land building part 15b Corner building part 15c Keraba part 15d Wall edge part 15e Three-pronged part 15f Valley part 15g Bent part 16 Standardized shape Roofing material 16a Land building standardized shape Roofing material 16b Corner building standardized shape Roofing material 16c Keraba standardized shape Roofing material 16d Wall-side standardized shape Roofing material 16e Three-pronged standardized shape Roofing material 16f Valley standardized shape Roofing material 16g Bending standardized shape Roofing material 17 Cover adjustment Roofing material 18 Outer dimensions 19 Flow overlapping dimensions 20 Horizontal overlapping dimensions 21 End gap size 22 Underlaying material 23 Heading part 24 Head side engaging part 25 Bottom side engaging part 26 Bottom end bending 27 Horizontal overlapping part 28 Fastening material Lh Cover Horizontal projection dimension of the working length of the roofing material L Working length dimension of cover roofing material W Working width dimension of cover roofing material WA Overall width dimension of cover roofing material Rh Horizontal projection roofing start setting range R Roofing start setting range MLh Horizontal projection Building edge dimension P Building design unit dimension

Claims (6)

勾配を有する屋根を備える建物の屋根であって、既存屋根材の上にカバー屋根材を桁方向に複数枚並べ、前記カバー屋根材を段方向に複数段並べる前記屋根において、
前記カバー屋根材の働き長さの水平投影寸法が前記建物の設計単位寸法の整数分の一であり、
前記カバー屋根材の働き幅寸法が前記働き長さの水平投影寸法の二倍以上の整数倍であり、
前記屋根の軒先に既存屋根材を覆うカバー軒先部材を設け、
前記カバー軒先部材は、前記カバー屋根材の流れ方向における水平投影葺き始め位置を設定するための水平投影葺き始め設定範囲を有し、
前記水平投影葺き始め設定範囲は、前記カバー屋根材の働き長さの水平投影寸法とし、
前記カバー屋根材の流れ方向における前記水平投影葺き始め位置は、陸棟芯を基準にして、水平投影棟際寸法に前記カバー屋根材の働き長さの水平投影寸法の整数倍を加え、かつ前記カバー軒先部材の前記水平投影葺き始め設定範囲の範囲内の位置とし、
陸棟部、隅棟部、ケラバ部、壁際部、三又部、陸棟曲がり部、谷部などの全ての屋根端部に規格化した形状のカバー屋根材を配置することを特徴とするリフォーム用長尺横葺きモジュール屋根材の屋根材配置方法。 In the roof of a building having a sloped roof, a plurality of cover roofing materials are arranged in a girder direction on an existing roofing material, and the cover roofing materials are arranged in a plurality of stages in a step direction.
The horizontal projection dimension of the working length of the cover roofing material is an integral fraction of the design unit dimension of the building.
The working width dimension of the cover roofing material is an integral multiple of twice or more the horizontal projection dimension of the working length.
A cover eaves member that covers the existing roof material is provided on the eaves of the roof.
The cover eaves member has a horizontal projection roofing start setting range for setting a horizontal projection roofing start position in the flow direction of the cover roofing material.
The horizontal projection start setting range is the horizontal projection dimension of the working length of the cover roofing material.
The horizontal projection roofing start position in the flow direction of the cover roofing material is obtained by adding an integral multiple of the horizontal projection dimension of the working length of the cover roofing material to the horizontal projection ridge edge dimension with reference to the land ridge core, and the cover eaves tip. The position of the member is within the set range of the horizontal projection start of roofing.
Remodeling length characterized by arranging standardized cover roofing materials on all roof edges such as land ridges, corner ridges, keraba parts, wall edges, three-pronged parts, land ridge bends, and valleys. How to arrange the roofing material for the horizontal roofing module roofing material. 前記屋根は隅棟又は谷を有し、前記カバー屋根材を前記軒先から陸棟にむかって流れ方向で一段毎に配置する際に、前記カバー屋根材は配置する屋根面の桁方向に対して一方の端部からもう一方の端部方向に前記カバー屋根材の働き長さの水平投影寸法の整数倍をずらして配置することを特徴とする請求項１記載のリフォーム用長尺横葺きモジュール屋根材の屋根材配置方法。 The roof has a corner ridge or a valley, and when the cover roofing material is arranged step by step in the flow direction from the eaves to the land ridge, the cover roofing material is arranged with respect to the girder direction of the roof surface to be arranged. The long horizontal roofing module roof for reform according to claim 1, wherein the cover roofing material is arranged so as to be offset by an integral multiple of the horizontal projection dimension of the working length from one end to the other end. How to arrange the roofing material. 前記カバー屋根材を前記軒先から前記陸棟にむかって流れ方向で一段毎に配置する際に、前記カバー屋根材は配置する屋根面の桁方向に対して一方の端部からもう一方の端部方向に前記カバー屋根材の働き長さの水平投影寸法をずらして配置することを特徴とする請求項２に記載のリフォーム用長尺横葺きモジュール屋根材の屋根材配置方法。 When the cover roofing material is arranged step by step in the flow direction from the eaves to the land ridge, the cover roofing material is arranged from one end to the other with respect to the girder direction of the roof surface to be arranged. The method for arranging a roofing material for a long horizontal roofing module roofing material for reform according to claim 2, wherein the horizontal projection dimension of the working length of the cover roofing material is shifted in the direction. 前記屋根面における桁方向の寸法調整に用いるカバー調整屋根材の働き幅寸法は、前記カバー屋根材の働き長さの水平投影寸法の整数倍であり、前記カバー調整屋根材を前記カバー屋根材の代わりに配置することで働き幅寸法の差分により前記桁方向の寸法調整を行うことを特徴とする請求項２又は請求項３のいずれか記載のリフォーム用長尺横葺きモジュール屋根材の屋根材配置方法。 The working width dimension of the cover adjusting roofing material used for dimension adjustment in the girder direction on the roof surface is an integral multiple of the horizontally projected dimension of the working length of the covering roofing material, and the cover adjusting roofing material is used as the cover roofing material. The roofing material arrangement of the long horizontal roofing module roofing material for reform according to any one of claim 2 or 3, wherein the dimension adjustment in the girder direction is performed by the difference in working width dimension by arranging instead. Method. 前記カバー調整屋根材は複数種類の働き幅寸法を設け、異なる種類の働き幅寸法を有する前記カバー調整屋根材を組み合わせて配置することで前記桁方向の寸法調整を行うことを特徴とする請求項４に記載のリフォーム用長尺横葺きモジュール屋根材の屋根材配置方法。 The claim is characterized in that the cover adjusting roofing material is provided with a plurality of types of working width dimensions, and the dimensions in the girder direction are adjusted by arranging the cover adjusting roofing materials having different types of working width dimensions in combination. 4. The method for arranging the roofing material of the long horizontal roofing module roofing material for reform according to 4. 前記隅棟部に配置する前記規格化した形状のカバー屋根材の働き幅寸法は、前記カバー屋根材の働き長さの水平投影寸法の二倍であることを特徴とする請求項１から請求項５までのいずれか記載のリフォーム用長尺横葺きモジュール屋根材の屋根材配置方法。 Claims 1 to 1, wherein the working width dimension of the standardized shape of the cover roofing material arranged in the corner ridge is twice the horizontal projection dimension of the working length of the cover roofing material. The method of arranging the roofing material of the long horizontal roofing module roofing material for reform according to any one of up to 5.
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