JP2020084421A

JP2020084421A - Construction structure for building board, and repair structure and waterproof member for roof

Info

Publication number: JP2020084421A
Application number: JP2018215084A
Authority: JP
Inventors: 襟子鈴木; Eriko Suzuki
Original assignee: KMEW Co Ltd
Current assignee: KMEW Co Ltd
Priority date: 2018-11-15
Filing date: 2018-11-15
Publication date: 2020-06-04

Abstract

To provide a construction structure for building boards, which can reduce labor used for the construction.SOLUTION: A construction structure in this invention consists of: a structure bed 2 which is formed with bed boards 20 vertically arranged step-wise; multiple building boards 1 which are laterally arranged butting each other on the structure bed 2 and also vertically overlapping step-wise each other at their edge parts; and a waterproof member 5 arranged on the reverse side of the butting point 6 of the multiple building boards 1. The waterproof member 5 comprises a plate-like part 51 arranged between the butting point 6 of the multiple building boards 1 and the structure bed 2, and an insertion part 56 which is inserted into the overlapping part 25 of the edge part 23a and 23b of the vertically adjacent bed boards 20.SELECTED DRAWING: Figure 1

Description

本発明は、建築板の施工構造、屋根の改修構造及び防水部材に関する。詳しくは、複数の建築板を備えた施工構造、屋根の改修構造及びこれらに使用される防水部材に関する。 TECHNICAL FIELD The present invention relates to a construction structure for a building board, a roof repair structure, and a waterproof member. More specifically, the present invention relates to a construction structure including a plurality of building boards, a roof repair structure, and a waterproof member used for these structures.

特許文献１には、防水兼雪止具を備えた外装材の取付構造が記載されている。この防水兼雪止具は、左右に互いに突付けて配置されると共に、上下に端部同士が重なり合って階段状に配置された複数枚の建築板が施工された構造に用いられるものであって、建築板の左右突付け箇所裏側に配置される水平面状の敷目部と、該敷目部の下端縁を上方に突出した雪止片とを備えている。 Patent Document 1 describes a mounting structure of an exterior material including a waterproof and snow stopper. This waterproof/snow stopper is used for a structure in which a plurality of building boards, which are arranged so as to project from each other on the left and right, and whose ends are vertically overlapped with each other, are arranged stepwise. The building board is provided with a horizontal plane stitch portion arranged on the back side of the left and right abutting points of the building board, and a snow stopper having a lower end edge of the stitch portion projecting upward.

特開２００２−２１２５８号公報JP 2002-21258 A

しかし、上記外装材の取付構造では、防水兼雪止具を屋根下地に固定する際に、釘打ちやビス留めなどの固定具による固定作業を行う必要があり、施工に手間がかかるという問題があった。 However, in the mounting structure of the above-mentioned exterior material, when fixing the waterproof/snow stopper to the roof substrate, it is necessary to perform fixing work with a fixing device such as nailing or screwing, which causes a problem that the construction is troublesome. there were.

本発明は上記の点に鑑みてなされたものであり、複数の建築板を施工するにあたって、施工にかかる手間を軽減することができる建築板の施工構造、屋根の改修構造及び防水部材を提供することを目的とする。 The present invention has been made in view of the above points, and in constructing a plurality of building boards, provides a construction structure of a building board, a roof repair structure, and a waterproof member that can reduce the time and effort required for the construction. The purpose is to

本発明に係る一態様の建築板の施工構造は、上下方向に複数の下地板が階段状に並べられて形成される構造物下地と、前記構造物下地上に左右方向に突付けて配置されると共に、上下方向で端部同士が重なり合って階段状に配置される複数の建築板と、前記複数の建築板の突付け箇所の裏側に配置される防水部材と、を備える。前記防水部材は、前記複数の建築板の突付け箇所と前記構造物下地との間に配置される板状部と、上下方向に隣接する前記下地板の端部の重なり部分に差し込まれる差し込み部と、を有する。 The construction structure of a building board according to one aspect of the present invention is a structure base formed by arranging a plurality of base plates in a vertical direction in a stepwise manner, and is arranged so as to project in the left-right direction on the structure base. In addition, it includes a plurality of building boards arranged in a step-like manner with their ends overlapping each other in the vertical direction, and a waterproof member arranged on the back side of the projecting points of the plurality of building boards. The waterproof member is a plate-shaped portion disposed between the projecting portions of the plurality of building boards and the structure base, and a plug-in portion that is inserted into an overlapping portion of the end portions of the base plate that are vertically adjacent to each other. And have.

本発明に係る一態様の屋根の改修構造は、前記構造物下地が既設屋根であり、前記建築板が新設屋根材である。 In the roof renovation structure according to one aspect of the present invention, the structure base is an existing roof, and the building board is a new roof material.

本発明に係る一態様の防水部材は、上下方向に複数の下地板が階段状に並べられて形成される構造物下地上に、左右方向に突付けて配置されると共に上下方向で端部同士が重なり合って階段状に配置される複数の建築板を保持する防水部材である。前記複数の建築板の突付け箇所と前記構造物下地との間に配置される板状部と、上下方向に隣接する前記下地板の端部の重なり部分に差し込まれる差し込み部と、を有する。 A waterproof member according to one aspect of the present invention is arranged so as to project in the left-right direction on a structure base formed by arranging a plurality of base plates in a vertical direction in a stepwise manner, and end portions in the vertical direction. Is a waterproof member that holds a plurality of building boards that are overlapped with each other and are arranged in a staircase pattern. It has a plate-like part arranged between the abutting points of the plurality of building boards and the structure base, and a plug-in part to be inserted into an overlapping portion of the end portions of the base plate that are vertically adjacent to each other.

本発明に係る一態様の建築板の施工構造、屋根の改修構造及び防水部材では、防水部材を構造物下地に固定する際に、構造物下地にある重なり部分への差し込み部の差し込みを利用することができ、施工にかかる手間を軽減することができる、という利点がある。 In the construction structure of a building board, the roof renovation structure, and the waterproof member according to one aspect of the present invention, when fixing the waterproof member to the structure base, the insertion of the insertion portion into the overlapping portion of the structure base is used. Therefore, there is an advantage that the labor required for construction can be reduced.

図１は、本発明に係る建築板の施工構造の一実施形態を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of the construction structure for a building board according to the present invention. 図２は、同上の軒方向から見た断面図である。FIG. 2 is a sectional view of the same as seen from the eaves direction. 図３Ａは、同上の防水部材を示す斜視図である。図３Ｂは、同上の防水部材を示すＹ−Ｙ断面図である。図３Ｃは、同上の防水部材を示すＸ−Ｘ断面図である。FIG. 3A is a perspective view showing the waterproof member of the above. FIG. 3B is a YY cross-sectional view showing the waterproof member of the above. FIG. 3C is a XX cross-sectional view showing the waterproof member of the above. 図４Ａ及び図４Ｂは、同上の施工方法を示す一部の拡大した斜視図である。Drawing 4A and Drawing 4B are some expanded perspective views showing the construction method same as the above. 図５は、同上の施工方法を示す一部の斜視図である。FIG. 5: is a one part perspective view which shows the construction method same as the above. 図６Ａ及び図６Ｂは、同上の施工方法を示す一部の拡大した斜視図である。Drawing 6A and Drawing 6B are some expanded perspective views showing the construction method same as the above. 図７Ａ及び図７Ｂは、同上の他の施工方法を示す一部の拡大した斜視図である。Drawing 7A and Drawing 7B are some expanded perspective views showing other construction methods same as the above. 図８は、同上の他の施工方法を示す一部の斜視図である。FIG. 8: is a one part perspective view which shows the other construction method same as the above. 図９Ａ及び図９Ｂは、同上の他の施工方法を示す一部の拡大した斜視図である。Drawing 9A and Drawing 9B are some expanded perspective views showing other construction methods same as the above.

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

図１は、本実施形態の建築板の施工構造としては、既設屋根の改修構造を示している。この場合、構造物下地２は、改修される既設屋根であり、その表面側に新設屋根材である建築板１と、防水部材５とが配置され、新設屋根が形成される。 FIG. 1 shows a repair structure of an existing roof as a construction structure of the building board of the present embodiment. In this case, the structure base 2 is an existing roof to be refurbished, and the building board 1 which is a new roof material and the waterproof member 5 are arranged on the surface side of the existing roof to form a new roof.

（構造物下地２）
図２に示すように、構造物下地２は、野地２１と、野地２１の上に敷かれた下葺材２７と、野地２１の上に下葺材２７を介して設けられた複数の下地板２０とを備えている。下地板２０は下葺材２７の表面に葺かれた下地板である。 (Structure base 2)
As shown in FIG. 2, the structure base 2 includes a field 21, a lowering material 27 laid on the field 21, and a plurality of base plates 20 provided on the field 21 via the lowering material 27. Is equipped with. The base plate 20 is a base plate that is roofed on the surface of the lower roofing material 27.

下葺材２７は、例えば、アスファルトルーフィングであって、シート状に形成されている。 The lower roofing material 27 is, for example, asphalt roofing, and is formed in a sheet shape.

下地板２０は既設屋根材であって、平面視略矩形板状のスレート瓦であって、セメント系成形材料を成形し、養生硬化することで製造される。 The base plate 20 is an existing roofing material, is a slate roof tile having a substantially rectangular plate shape in a plan view, and is manufactured by molding a cement-based molding material and curing and curing it.

複数の下地板２０は、野地２１上に、軒棟方向と軒方向との両方向に並べて設置されている。ここで、軒棟方向とは屋根の勾配方向であり、軒から棟に向かう方向及び棟から軒に向かう方向を意味する。軒方向とは屋根の一つの傾斜面における軒に沿った方向であって、軒棟方向と直交する左右方向である。すなわち、軒棟方向は、下地板２０が階段状に並ぶ方向であり、軒方向は、下地板２０が階段状に並ぶ方向と直交する方向である。 The plurality of base plates 20 are arranged on the field 21 side by side in both the eaves direction and the eaves direction. Here, the eaves ridge direction is the direction of the slope of the roof, and means the direction from the eaves to the ridge and the direction from the ridges to the eaves. The eaves direction is a direction along the eaves on one inclined surface of the roof, and is a lateral direction orthogonal to the eaves direction. That is, the eaves ridge direction is a direction in which the base plates 20 are arranged in a staircase pattern, and the eaves direction is a direction orthogonal to the direction in which the base plates 20 are arranged in a staircase pattern.

構造物下地２には複数の重なり部分２５が形成されている。各重なり部分２５は軒棟方向に隣接する複数の下地板２０が上下方向に重なることにより形成される。図２では、軒棟方向に隣接して並ぶ複数の下地板２０ａ、２０ｂ、２０ｃ、２０ｄが上下に重なっている部分を示している。この場合、最も軒側に位置する下地板２０ａの軒側端部２３ａと、この軒側端部２３ａの下方に位置する下地板２０ｂと、下地板２０ｂの下方に位置する下地板２０ｃの棟側端部２２ｃとで棟側の重なり部分（第一の重なり部分）２５１が形成されている。また、上記下地板２０ｂの軒側端部２３ｂと、この軒側端部２３ｂの下方に位置する上記下地板２０ｃと、下地板２０ｃの下方に位置する下地板２０ｄの棟側端部２２ｄとで軒側の重なり部分（第二の重なり部分）２５２が形成されている。なお、重なり部分２５は少なくとも２枚の下地板２０が重なり合って形成することができる。 A plurality of overlapping portions 25 are formed on the structure base 2. Each overlapping portion 25 is formed by vertically overlapping a plurality of base plates 20 adjacent to each other in the eaves direction. FIG. 2 shows a portion in which a plurality of base plates 20a, 20b, 20c, 20d that are arranged adjacent to each other in the eaves direction are vertically stacked. In this case, the eaves side end 23a of the base plate 20a located closest to the eaves, the base plate 20b located below the eaves side end 23a, and the ridge side of the base plate 20c located below the base plate 20b. A ridge-side overlapping portion (first overlapping portion) 251 is formed with the end portion 22c. Further, the eaves side end 23b of the base plate 20b, the base plate 20c located below the eaves side end 23b, and the ridge side end 22d of the base plate 20d located below the base plate 20c. An eave-side overlapping portion (second overlapping portion) 252 is formed. The overlapping portion 25 can be formed by overlapping at least two base plates 20.

複数の下地板２０は、軒方向に隣接する下地板２０同士を突付けた状態で、野地２１上に設置されている。ここで、「突付け」とは、軒方向に隣接する下地板２０のうちの一方の端面と、他方の端面とを突き合せることを意味する。下地板２０は、棟側に隣接した下地板２０によって覆われる被覆部２８と、棟側に隣接した下地板２０によって覆われずに露出した曝露部（露出部）２９とを備えている。 The plurality of base plates 20 are installed on the field 21 with the base plates 20 adjacent to each other facing each other in the eaves direction. Here, "butting" means that one end face and the other end face of the base plates 20 adjacent to each other in the eaves direction are butted. The base plate 20 includes a covering portion 28 that is covered by the base plate 20 adjacent to the ridge side, and an exposed portion (exposed portion) 29 that is exposed without being covered by the base plate 20 adjacent to the ridge side.

下地板２０の被覆部２８には、釘やビス等の固着具２４が厚み方向に貫通している。固着具２４は、下葺材２７を介して野地２１に打入されており、これにより、下地板２０は野地２１に固定されている。 A fastener 24 such as a nail or a screw penetrates through the covering portion 28 of the base plate 20 in the thickness direction. The fixing tool 24 is driven into the field 21 via the underlay material 27, whereby the base plate 20 is fixed to the field 21.

（建築板１）
建築板１は、平面視略矩形板状のスレート瓦であって、セメント系成形材料を成形し、養生硬化することで製造される。建築板１は既設屋根を覆うカバー材として使用される。なお、建築板１は既設屋根材である下地板２０と軒棟方向の寸法が異なるものを使用できる。 (Building board 1)
The building board 1 is a slate roof tile having a substantially rectangular plate shape in a plan view, and is manufactured by molding a cement-based molding material and curing and curing it. The building board 1 is used as a cover material that covers an existing roof. As the building board 1, a board having a different dimension in the eaves direction from the base board 20 which is an existing roofing material can be used.

（防水部材５）
防水部材５は捨て板又はジョイント材と称されるものであって、軒方向に隣接する建築板（新設屋根材）１の突付け箇所６から浸入した雨水を受ける。すなわち、軒棟方向に隣接する建築板１を重ねることにより、屋根の防水性は確保されているが、建築板１の形状によっては、軒方向で隣接する建築板１の突付け箇所６から浸入する水に対して、この突付け箇所６の裏側に防水部材５を配置する。 (Waterproof member 5)
The waterproof member 5 is called a discard plate or a joint material, and receives rainwater that has infiltrated from the projecting point 6 of the building board (new roof material) 1 adjacent to the eaves direction. That is, the waterproofness of the roof is ensured by stacking the building boards 1 adjacent to each other in the eaves direction, but depending on the shape of the building board 1, penetration from the projecting points 6 of the adjacent building boards 1 in the eaves direction. The waterproof member 5 is arranged on the back side of the abutting portion 6 with respect to the water.

防水部材５は、例えば、金属製であり、板金を曲げ加工することで一体に形成される。板金としては、ステンレス鋼板、ガルバリウム鋼板（登録商標）などが使用される。また防水部材５は、樹脂製又はアルミニウム製であってもよい。 The waterproof member 5 is made of metal, for example, and is integrally formed by bending a sheet metal. As the sheet metal, a stainless steel plate, a galvalume steel plate (registered trademark), or the like is used. The waterproof member 5 may be made of resin or aluminum.

図３Ａ、図３Ｂ及び図３Ｃに示すように、防水部材５は、板状部５１と、位置決め部５３と、堰部５５、差し込み部５６とを有している。 As shown in FIGS. 3A, 3B, and 3C, the waterproof member 5 has a plate-shaped portion 51, a positioning portion 53, a dam portion 55, and an insertion portion 56.

板状部５１は、軒棟方向に長い矩形板状に形成されている。板状部５１は、下地板２０の上面に沿って配置される。板状部５１における軒方向の両端（幅方向に沿った両端）には、板状部５１の表面側に向かって突出した一対の堰部５５が、それぞれ形成されている。 The plate portion 51 is formed in a rectangular plate shape that is long in the eaves ridge direction. The plate-shaped portion 51 is arranged along the upper surface of the base plate 20. A pair of dam portions 55 protruding toward the front surface side of the plate-shaped portion 51 are formed at both ends of the plate-shaped portion 51 in the eaves direction (both ends along the width direction).

各堰部５５は、板状部５１の軒棟方向の全長に亘って形成されている。各堰部５５は、板状部５１の軒方向の端から表面側に向かって突出した縦片５５１と、縦片５５１の先端から、軒方向における板状部５１とは反対側に向かって突出した横片５５２とを有している。一対の堰部５５の横片５５２には、軒方向に隣接する建築板（新設屋根材）１の隣接箇所４（建築板１の軒方向端部、図１参照）がそれぞれ載せられる。このため、例えば、建築板１が踏まれる等して、建築板１に下向きの力が加わったとき、この建築板１を防水部材５で支持することができ、これにより、建築板１の変形が抑制される。 Each dam portion 55 is formed over the entire length of the plate-shaped portion 51 in the eaves ridge direction. Each dam portion 55 protrudes from the end of the plate-shaped portion 51 toward the eaves toward the front side, and from the tip of the vertical piece 551 toward the opposite side of the plate-shaped portion 51 in the eaves-direction. And a horizontal piece 552. On the horizontal pieces 552 of the pair of weir portions 55, the adjoining portions 4 of the building board (new roofing material) 1 adjacent in the eaves direction (ends of the building board 1 in the eaves direction, see FIG. 1) are respectively placed. Therefore, for example, when a downward force is applied to the building board 1 due to the building board 1 being stepped on or the like, the building board 1 can be supported by the waterproof member 5, whereby the building board 1 is deformed. Is suppressed.

位置決め部５３は、板状部５１の軒側端に、板状部５１の表面側に向かって突出して形成されている。位置決め部５３は、板状部５１の軒方向の全長に亘って形成されている。位置決め部５３は、板状部５１の軒側端から表面側に向かって突出した立ち上げ片５３１と、立ち上げ片５３１の先端から、棟側（板状部５１側）に向かって突出した押さえ片５３２とを有している。立ち上げ片５３１と押さえ片５３２は二重の金属板で形成されている。位置決め部５３は、板状部５１と立ち上げ片５３１と押さえ片５３２との間に挿入空間５３３を形成するものであり、この挿入空間５３３に建築板１の軒側端部を差し込むことにより、軒棟方向において建築板１の下端が位置決めされる。 The positioning portion 53 is formed at the eaves side end of the plate-shaped portion 51 so as to project toward the front surface side of the plate-shaped portion 51. The positioning portion 53 is formed over the entire length of the plate-shaped portion 51 in the eaves direction. The positioning part 53 includes a rising piece 531 protruding from the eave-side end of the plate-shaped part 51 toward the front side, and a pressing piece protruding from the tip of the rising part 531 toward the ridge side (the plate-shaped part 51 side). And a piece 532. The rising piece 531 and the pressing piece 532 are formed of a double metal plate. The positioning portion 53 forms an insertion space 533 between the plate-shaped portion 51, the rising piece 531 and the pressing piece 532, and by inserting the eaves side end of the building board 1 into the insertion space 533, The lower end of the building board 1 is positioned in the eaves ridge direction.

一対の堰部５５及び位置決め部５３は、雨水が軒方向で隣接する建築板１の突付け箇所６から板状部５１の表面に落下して板状部５１の表面を流れたときに、この雨水を堰き止めて広がりを抑えつつ、この雨水を板状部５１の軒側に排出されるようにガイドする機能も有する。なお、立ち上げ片５３１、立ち上げ片５３１と板状部５１とのなす角部に水抜き孔を形成していてもよい。 When the rainwater falls on the surface of the plate-shaped portion 51 from the abutting portion 6 of the building board 1 adjacent in the eaves direction and flows on the surface of the plate-shaped portion 51, the pair of dam portions 55 and the positioning portion 53 It also has a function of blocking the rainwater and suppressing its spread, and guiding the rainwater to the eaves side of the plate-like portion 51. In addition, you may form the drainage hole in the rising piece 531 and the corner part which the rising piece 531 and the plate-shaped part 51 make.

差し込み部５６は、棟側の差し込み部（第一の差し込み部）５６１と、軒側の差し込み部（第二の差し込み部）５６２とを有する。棟側の差し込み部５６１は軒側の差し込み部５６２よりも棟側に設けられている。すなわち、軒側の差し込み部５６２は棟側の差し込み部５６１よりも軒側に設けられている。 The insertion portion 56 has a ridge-side insertion portion (first insertion portion) 561 and an eaves-side insertion portion (second insertion portion) 562. The ridge-side insertion portion 561 is provided closer to the ridge than the eaves-side insertion portion 562. That is, the eave-side insertion portion 562 is provided closer to the eaves than the ridge-side insertion portion 561.

棟側の差し込み部５６１は防水部材５の棟側端部で形成されている。すわなち、棟側の差し込み部５６１は、板状部５１の棟側端部と各堰部５５の棟側端部で形成されている。軒側の差し込み部５６２は、図３Ｃに示すように、板状部５１の裏面側に設けられている。すなわち、立ち上げ片５３１の下端（板状部５１の軒側端）から板状部５１の裏面に沿って棟側に延びる延出片５１２と、延出片５１２の先端から外側（板状部５１の裏側に離れる方向）に突出する突出片５１３とを設け、その突出片５１３の先端から棟側に向かって軒側の差し込み部５６２が形成されている。板状部５１と軒側の差し込み部５６２との間の寸法は、下地板２０の厚みよりも少し大きく形成されている。軒側の差し込み部５６２は板状部５１の軒方向の略全長にわたって設けられている。 The ridge-side insertion portion 561 is formed at the ridge-side end of the waterproof member 5. That is, the ridge-side insertion portion 561 is formed by the ridge-side end of the plate-shaped portion 51 and the ridge-side end of each dam 55. The eave-side insertion portion 562 is provided on the back surface side of the plate-shaped portion 51, as shown in FIG. 3C. That is, the extending piece 512 extends from the lower end of the rising piece 531 (the eave-side end of the plate-like portion 51) toward the ridge along the back surface of the plate-like portion 51, and the outside from the tip of the extending piece 512 (the plate-like portion). A projecting piece 513 projecting toward the back side of 51 is provided, and an eave-side insertion portion 562 is formed from the tip of the projecting piece 513 toward the ridge side. The dimension between the plate-shaped portion 51 and the eave-side insertion portion 562 is formed to be slightly larger than the thickness of the base plate 20. The eave-side insertion portion 562 is provided over substantially the entire length of the plate-shaped portion 51 in the eaves direction.

（建築板１の施工方法）
本実施形態において、構造物下地（既設屋根）２に建築板（新設屋根材）１を施工し、図１に示す新設屋根を形成するにあたっては、次のようにして行う。 (Construction method of building board 1)
In the present embodiment, the construction board (new roof material) 1 is applied to the structure base (existing roof) 2 to form the new roof shown in FIG. 1 as follows.

まず、複数の建築板１を順次葺いて施工していく。図５に示すように、建築板１は棟側から軒側に向かって施工されていく。すなわち、複数の建築板１を棟方向で一列に施工した後、その一列に施工した複数の建築板１の軒側に、別の複数の建築板１を軒方向で一列に施工していく。このようにして複数の建築板１を棟側から軒側に向かって順次施工していく。複数の建築板１は、例えば千鳥配置で施工できるが、これに限定されない。 First, a plurality of building boards 1 are sequentially roofed and constructed. As shown in FIG. 5, the building board 1 is constructed from the ridge side toward the eaves side. That is, after constructing a plurality of building boards 1 in a row in the ridge direction, another plurality of building boards 1 is constructed in a row in the eaves direction on the eaves side of the building boards 1 constructed in one row. In this way, a plurality of building boards 1 are sequentially constructed from the ridge side toward the eaves side. The plurality of building boards 1 can be constructed, for example, in a staggered arrangement, but is not limited to this.

ここで、軒方向で隣接する建築板１は、軒棟方向に延びる側端部同士が突付けられて配置される。また軒棟方向で隣接する建築板１は上下方向で端部同士が重なり合って階段状に配置される。すなわち、軒側の建築板１の棟側端部の表面側に、棟側の建築板１の軒側端部が重ねられて配置される。このような場合、複数（三つ）の建築板１の隣接箇所４では、軒方向で隣接する建築板１の突付け箇所６における防水性の向上が望まれる。また軒棟方向で隣接する建築板１は、軒側の建築板１と棟側の建築板１との位置を簡単に正確に配置することが望まれる。そこで、本実施形態では、防水部材５で、軒方向で隣接する建築板１の突付け箇所６における防水性の向上し、かつ軒側の建築板１と棟側の建築板１との位置を簡単に正確に配置することをおこなっている。 Here, the building boards 1 adjacent to each other in the eaves direction are arranged such that their side ends extending in the eaves direction are abutted against each other. Further, the building boards 1 adjacent to each other in the eaves direction are arranged in a step-like manner with their ends overlapping each other in the vertical direction. That is, the eaves-side end of the ridge-side building board 1 is arranged on the front side of the ridge-side end of the eaves-side building board 1. In such a case, in the adjoining portions 4 of the plurality (three) of building boards 1, it is desired to improve the waterproofness at the projecting portions 6 of the building boards 1 that are adjacent in the eaves direction. Further, it is desired that the building boards 1 adjacent to each other in the eaves ridge direction be easily and accurately arranged with respect to the eaves side building board 1 and the ridge side building board 1. Therefore, in the present embodiment, the waterproof member 5 improves waterproofness at the projecting points 6 of the building boards 1 adjacent to each other in the eaves direction, and positions the building board 1 on the eaves side and the building board 1 on the ridge side. It is easy and accurate to place them.

複数の建築板１及び複数の防水部材５を施工する方法には二通りの手順がある。 There are two procedures for constructing the plurality of building boards 1 and the plurality of waterproof members 5.

まず、第一の施工方法について説明する。 First, the first construction method will be described.

図４Ａに示すように、複数の建築板１３を軒方向で一列に施工した後、その一列に施工した複数の建築板１３の軒側に他の建築板１１を配置する。このとき、一列に施工した複数の建築板１３の軒側端部１３５は、建築板１３の下側（裏側）に位置する棟側の重なり部分２５１よりも軒側に突出している。また軒側端部１３５と、その軒側端部１３５の下側にある構造物下地２の表面（下地板２０の曝露部２９）との間の隙間２０１に、建築板１１の棟側端部１１６を差し込む。隙間２０１の上下方向の寸法は下地板２０の厚みとほぼ同じである。なお、複数の建築板１３も本実施形態と同様にして施工されている。 As shown in FIG. 4A, after a plurality of building boards 13 are constructed in a row in the eaves direction, another building board 11 is arranged on the eaves side of the plurality of construction boards 13 constructed in a row. At this time, the eaves-side end portions 135 of the plurality of building boards 13 that are constructed in a row project to the eaves side from the ridge-side overlapping portion 251 located on the lower side (back side) of the building board 13. Further, in the gap 201 between the eaves-side end portion 135 and the surface of the structure base 2 (exposed portion 29 of the foundation plate 20) below the eaves-side end portion 135, the ridge-side end portion of the building board 11 is provided. Insert 116. The vertical dimension of the gap 201 is substantially the same as the thickness of the base plate 20. The plurality of building boards 13 are also constructed in the same manner as this embodiment.

次に、図４Ｂに示すように、軒方向において建築板１１に隣接して他の建築板１２を配置する。このとき、建築板１１と同様に、棟側にある建築板１３の軒側端部１３５と、その軒側端部１３５の下側にある構造物下地２の表面（下地板２０の曝露部２９）との間の隙間２０１に、建築板１２の棟側端部１２６を差し込む。また軒方向で隣接する建築板１１と建築板１２とは側端部（軒棟方向に延びる端部）１１９，１２９同士が突付けられて配置される。このようにして、複数の建築板１（１１，１２）を軒方向で一列に並べて配置する。そして、軒方向で隣接する建築板１１と建築板１２とが側端部１１９，１２９同士を突付けて突付け箇所６が形成される。 Next, as shown in FIG. 4B, another building board 12 is arranged adjacent to the building board 11 in the eaves direction. At this time, like the building board 11, the eaves-side end portion 135 of the building board 13 on the ridge side and the surface of the structure foundation 2 below the eaves-side end portion 135 (the exposed portion 29 of the foundation board 20). ), the ridge-side end 126 of the building board 12 is inserted into the gap 201. Further, the building board 11 and the building board 12 that are adjacent to each other in the eaves direction are arranged such that side end portions (end portions extending in the eaves ridge direction) 119 and 129 project from each other. In this way, the plurality of building boards 1 (11, 12) are arranged in a row in the eaves direction. Then, the building board 11 and the building board 12, which are adjacent to each other in the eaves direction, abut the side end portions 119 and 129 with each other to form the abutting point 6.

次に、防水部材５を配置する。この場合、図５、図６Ａ及び図６Ｂのように、防水部材５の棟側の差し込み部５６１を棟側に向けて、防水部材５を建築板１１及び建築板１２に軒側から近づける。そして、軒方向で隣接する建築板１１と建築板１２の突付け箇所６の裏側に板状部５１を差し込む。すなわち、軒方向で隣接する建築板１１と建築板１２の突付け箇所６の裏側において、建築板１１及び建築板１２の裏面と構造物下地２の表面との間に板状部５１を棟側の差し込み部５６１の方から差し込む。 Next, the waterproof member 5 is arranged. In this case, as shown in FIGS. 5, 6A and 6B, the waterproof member 5 is brought close to the building board 11 and the building board 12 from the eaves side with the ridge-side insertion portion 561 of the waterproof member 5 facing the ridge side. Then, the plate-shaped portion 51 is inserted on the back side of the projecting portion 6 between the building board 11 and the building board 12 which are adjacent to each other in the eaves direction. That is, on the back side of the projecting point 6 between the building board 11 and the building board 12 that are adjacent to each other in the eaves direction, the plate-like portion 51 is provided between the back surfaces of the building board 11 and the building board 12 and the surface of the structure base 2. Insert from the insertion portion 561 of.

棟側の差し込み部５６１は棟側の建築板１３の下側にある棟側の重なり部分２５１に差し込む。すなわち、棟側の建築板１３の下側には、下地板２０ａの軒側端部２３ａとその軒側にある下地板２０ｂとが重なった棟側の重なり部分２５１が形成されており、この軒側端部２３ａと下地板２０ｂとの間に棟側の差し込み部５６１を軒側から差し込む（図２参照）。 The ridge-side insertion portion 561 is inserted into the ridge-side overlapping portion 251 below the ridge-side building board 13. That is, on the lower side of the building board 13 on the ridge side, the ridge-side overlapping portion 251 in which the eaves side end portion 23a of the foundation board 20a and the foundation board 20b on the eaves side overlap is formed. The ridge-side insertion portion 561 is inserted from the eaves side between the side end portion 23a and the base plate 20b (see FIG. 2).

また、軒側の差し込み部５６２は、上記棟側の重なり部分２５１とは異なる他の重なり部分２５（軒側の重なり部分２５２）に差し込む。軒側の重なり部分２５２は棟側の重なり部分２５１の軒側にあり、棟側の重なり部分２５１の一段下の重なり部分２５である。すなわち、軒側の重なり部分２５２を構成する下地板２０ｂの軒側端部２３ｂとその軒側にある下地板２０ｃとの間に軒側の差し込み部５６２を軒側から差し込む（図２参照）。なお、棟側の重なり部分２５１を構成する下地板２０ｂは、軒側の重なり部分２５２を構成する軒側端部２３ｂが有している。 Further, the eaves side insertion portion 562 is inserted into another overlapping portion 25 (eaves side overlapping portion 252) different from the ridge side overlapping portion 251. The eave-side overlapping portion 252 is on the eave side of the ridge-side overlapping portion 251, and is the overlapping portion 25 one step below the ridge-side overlapping portion 251. That is, the eaves side insertion portion 562 is inserted from the eaves side between the eaves side end portion 23b of the foundation plate 20b forming the eaves side overlapping portion 252 and the foundation plate 20c on the eaves side (see FIG. 2). The base plate 20b that constitutes the ridge-side overlapping portion 251 has the eaves-side end portion 23b that constitutes the eaves-side overlapping portion 252.

突付け箇所６において、防水部材５は突出片５１３が下地板２０ｂの軒側端面に当たるまで差し込むのが好ましく、これにより、防水部材５の位置決めを行うことができる。また差し込み部５６は重なり部分２５において下地板２０と接着することが好ましい。特に、下地板２０の軒側端部２３ａ、２３ｂに差し込み部５６を接着するのが好ましい。この場合、防水部材５を構造物下地２に強固に配置することができ、建築板１の固定強度を向上させることができる。接着する差し込み部５６は、棟側の差し込み部５６１だけでもよく、あるいは軒側の差し込み部５６２だけでもよく、あるいは棟側の差し込み部５６１及び軒側の差し込み部５６２の両方であってもよい。 It is preferable to insert the waterproof member 5 at the abutting point 6 until the protruding piece 513 hits the eaves-side end surface of the base plate 20b, whereby the waterproof member 5 can be positioned. Further, it is preferable that the insertion portion 56 is bonded to the base plate 20 at the overlapping portion 25. In particular, it is preferable to bond the insertion portion 56 to the eaves side end portions 23a and 23b of the base plate 20. In this case, the waterproof member 5 can be firmly arranged on the structure base 2, and the fixing strength of the building board 1 can be improved. The plug-in portion 56 to be bonded may be only the ridge-side plug portion 561 or only the eave-side plug portion 562, or both the ridge-side plug portion 561 and the eave-side plug portion 562.

また突付け箇所６において、防水部材５の挿入空間５３３に建築板１１の軒側端部１１５及び建築板１２の軒側端部１２５を差し込み、位置決め部５３で建築板１１の下端１１１及び建築板１２の下端１２１の位置決めをする。建築板１１の下端１１１及び建築板１２の下端１２１は位置決め部５３の立ち上げ片５３１と当たっていてもよいし、当たっていなくてもよい。すなわち、建築板１１の下端１１１及び建築板１２の下端１２１（並びに建築板１３の下端１３１）は立ち上げ片５３１と必ず当てる必要はなく、隙間を設けてもよい。この場合、下端１１１、１２１（及び１３１）と立ち上げ片５３１との間に入り込む雨水を隙間から排出しやすくなるものである。このようにして複数の建築板１と複数の防水部材５を施工することにより、図１に示すような新設屋根が形成される。 At the butting point 6, the eaves side end 115 of the building board 11 and the eaves side end 125 of the building board 12 are inserted into the insertion space 533 of the waterproof member 5, and the lower end 111 of the building board 11 and the building board 11 are inserted at the positioning portion 53. The lower end 121 of 12 is positioned. The lower end 111 of the building board 11 and the lower end 121 of the building board 12 may or may not abut the rising piece 531 of the positioning portion 53. That is, the lower end 111 of the building board 11 and the lower end 121 of the building board 12 (and the lower end 131 of the building board 13) do not necessarily have to contact the rising piece 531 and a gap may be provided. In this case, rainwater entering between the lower ends 111, 121 (and 131) and the rising piece 531 can be easily discharged from the gap. By constructing the plurality of building boards 1 and the plurality of waterproof members 5 in this manner, a new roof as shown in FIG. 1 is formed.

次に、第二の施工方法について説明する。 Next, the second construction method will be described.

図７Ａに示すように、複数の建築板１３を軒方向で一列に施工した後、その一列に施工した複数の建築板１３の軒側に他の建築板１１を配置する。上記と同様に、一列に施工した複数の建築板１３の軒側端部１３５は、建築板１３の下側（裏側）に位置する棟側の重なり部分２５１よりも軒側に突出している。また上記と同様に、軒側端部１３５と、その軒側端部１３５の下側にある構造物下地２の表面（下地板２０の曝露部２９）との間の隙間２０１に、建築板１１の棟側端部１１６を差し込む。なお、複数の建築板１３も本実施形態と同様にして施工されている。 As shown in FIG. 7A, after a plurality of building boards 13 are constructed in a row in the eaves direction, another building board 11 is arranged on the eaves side of the plurality of construction boards 13 constructed in a row. Similarly to the above, the eaves-side end portions 135 of the plurality of building boards 13 that are constructed in a row project to the eaves side from the ridge-side overlapping portion 251 located on the lower side (back side) of the building board 13. Further, similarly to the above, in the gap 201 between the eaves side end portion 135 and the surface of the structure base 2 (exposed portion 29 of the foundation plate 20) below the eaves side end portion 135, the building board 11 is provided. Insert the ridge-side end 116 of the. The plurality of building boards 13 are also constructed in the same manner as this embodiment.

次に、防水部材５を配置する。この場合、図７Ｂのように、防水部材５の棟側の差し込み部５６１を棟側に向けて、防水部材５を建築板１１に軒側から近づける。そして、建築板１１の軒棟方向に延びる側端部１１９の裏側に板状部５１を差し込む。このとき、軒方向における板状部５１の半分が建築板１１の軒棟方向に延びる側端部１１９の裏側に差し込まれる。すなわち、軒方向における板状部５１の残りの半分は、建築板１１の軒棟方向に延びる側端部１１９よりも軒方向に突出することになる。 Next, the waterproof member 5 is arranged. In this case, as shown in FIG. 7B, the waterproof member 5 is brought closer to the building board 11 from the eaves side with the insertion portion 561 on the ridge side of the waterproof member 5 facing the ridge side. Then, the plate-like portion 51 is inserted on the back side of the side end portion 119 of the building board 11 extending in the eaves ridge direction. At this time, half of the plate-shaped portion 51 in the eaves direction is inserted into the back side of the side end 119 of the building board 11 extending in the eaves-ridge direction. That is, the other half of the plate-shaped portion 51 in the eaves direction projects in the eaves direction than the side end 119 of the building board 11 extending in the eaves ridge direction.

上記と同様に、棟側の差し込み部５６１は棟側の建築板１３の下側にある棟側の重なり部分２５１に差し込む。すなわち、棟側の建築板１３の下側には、下地板２０ａの軒側端部２３ａとその軒側にある下地板２０ｂとが重なった棟側の重なり部分２５１が形成されており、この軒側端部２３ａと下地板２０ｂとの間に棟側の差し込み部５６１を軒側から差し込む（図２参照）。 Similarly to the above, the ridge-side insertion portion 561 is inserted into the ridge-side overlapping portion 251 below the ridge-side building board 13. That is, on the lower side of the building board 13 on the ridge side, the ridge-side overlapping portion 251 in which the eaves side end portion 23a of the foundation board 20a and the foundation board 20b on the eaves side overlap is formed. The ridge-side insertion portion 561 is inserted from the eaves side between the side end portion 23a and the base plate 20b (see FIG. 2).

また、上記と同様に、軒側の差し込み部５６２は、上記棟側の重なり部分２５１とは異なる他の重なり部分２５（軒側の重なり部分２５２）に差し込まれる。軒側の重なり部分２５２は棟側の重なり部分２５１の軒側にあり、棟側の重なり部分２５１の一段下の重なり部分２５である。すなわち、軒側の重なり部分２５２を構成する下地板２０ｂの軒側端部２３ｂとその軒側にある下地板２０ｃとの間に軒側の差し込み部５６２を軒側から差し込む（図２参照）。 Further, similarly to the above, the eaves side insertion portion 562 is inserted into another overlapping portion 25 (eaves side overlapping portion 252) different from the ridge side overlapping portion 251. The eave-side overlapping portion 252 is on the eave side of the ridge-side overlapping portion 251, and is the overlapping portion 25 one step below the ridge-side overlapping portion 251. That is, the eaves side insertion portion 562 is inserted from the eaves side between the eaves side end portion 23b of the foundation plate 20b forming the eaves side overlapping portion 252 and the foundation plate 20c on the eaves side (see FIG. 2).

防水部材５は突出片５１３が下地板２０の軒側端面に当たるまで差し込むのが好ましく、これにより、防水部材５の位置決めを行うことができる。また差し込み部５６は重なり部分２５において下地板２０と接着することが好ましい。この場合、防水部材５を構造物下地２に強固に配置することができ、建築板１の固定強度を向上させることができる。接着する差し込み部５６は、棟側の差し込み部５６１だけでもよく、あるいは軒側の差し込み部５６２だけでもよく、あるいは棟側の差し込み部５６１及び軒側の差し込み部５６２の両方であってもよい。 The waterproof member 5 is preferably inserted until the protruding piece 513 hits the eaves side end surface of the base plate 20, whereby the waterproof member 5 can be positioned. Further, it is preferable that the insertion portion 56 is bonded to the base plate 20 at the overlapping portion 25. In this case, the waterproof member 5 can be firmly arranged on the structure base 2, and the fixing strength of the building board 1 can be improved. The plug-in portion 56 to be bonded may be only the ridge-side plug portion 561 or only the eave-side plug portion 562, or both the ridge-side plug portion 561 and the eave-side plug portion 562.

また防水部材５の挿入空間５３３に建築板１１の軒側端部１１５を差し込み、位置決め部５３で建築板１１の下端１１１の位置決めをする。建築板１１の下端１１１は位置決め部５３の立ち上げ片５３１と当たっていてもよいし、当たっていなくてもよい。すなわち、建築板１１の下端１１１は立ち上げ片５３１と必ず当てる必要はなく、隙間を設けてもよい。この場合、下端１１１と立ち上げ片５３１との間に入り込む雨水を隙間から排出しやすくなるものである。 Further, the eaves side end 115 of the building board 11 is inserted into the insertion space 533 of the waterproof member 5, and the lower end 111 of the building board 11 is positioned by the positioning portion 53. The lower end 111 of the building board 11 may or may not contact the rising piece 531 of the positioning portion 53. That is, the lower end 111 of the building board 11 does not necessarily have to contact the rising piece 531 and a gap may be provided. In this case, rainwater entering between the lower end 111 and the rising piece 531 can be easily discharged from the gap.

次に、軒方向において建築板１１に隣接して他の建築板１２を配置する。このとき、図８及び図９Ａのように、建築板１１の場合と同様に、棟側にある建築板１３の軒側端部１３５と、その軒側端部１３５の下側にある構造物下地２の表面（下地板２０の曝露部２９）との間の隙間２０１に、建築板１２の棟側端部１２６を軒側から近づけて差し込む。また板状部５１の表側において、軒方向で隣接する建築板１１と建築板１２とは側端部（軒棟方向に延びる端部）１１９，１２９同士が突付けられて配置される。すなわち、軒方向において建築板１１の側端部１１９よりも軒方向に突出する板状部５１の半分の上に建築板１２の側端部１２９を配置する。これにより、軒方向で隣接する建築板１１と建築板１２との突付け箇所６の裏側に板状部５１が配置される。また防水部材５の挿入空間５３３に建築板１２の軒側端部１２５を差し込み、図９Ｂに示すように、位置決め部５３で建築板１２の軒棟方向の位置決めをする。建築板１２の下端（軒側端面）１２１は位置決め部５３の立ち上げ片５３１と当たっていてもよいし、当たっていなくてもよい。このようにして、複数の建築板１（１１，１２）と防水部材５を軒方向で一列に並べて配置する。 Next, another building board 12 is arranged adjacent to the building board 11 in the eaves direction. At this time, as in the case of the building board 11, as shown in FIGS. 8 and 9A, the eaves-side end portion 135 of the building board 13 on the ridge side and the structure base under the eaves-side end portion 135. The ridge-side end 126 of the building board 12 is inserted close to the eaves side into the gap 201 between the second surface (the exposed portion 29 of the base plate 20). Further, on the front side of the plate-shaped portion 51, side edges (ends extending in the eaves direction) 119 and 129 of the building board 11 and the building board 12 adjacent to each other in the eaves direction are arranged so as to project. That is, the side end portion 129 of the building board 12 is arranged on the half of the plate-shaped portion 51 protruding in the eaves direction from the side end portion 119 of the building board 11 in the eaves direction. As a result, the plate-shaped portion 51 is arranged on the back side of the projecting point 6 between the building board 11 and the building board 12 that are adjacent to each other in the eaves direction. Further, the eaves side end 125 of the building board 12 is inserted into the insertion space 533 of the waterproof member 5, and as shown in FIG. 9B, the positioning section 53 positions the building board 12 in the eaves ridge direction. The lower end (eave side end surface) 121 of the building board 12 may or may not contact the rising piece 531 of the positioning portion 53. In this way, the plurality of building boards 1 (11, 12) and the waterproof member 5 are arranged side by side in the eaves direction.

そして、上記第一及び第二の施工方法で形成された新設屋根において、軒側の建築板１１及び建築板１２と棟側の建築板１３との隣接箇所４において、軒方向で隣接する建築板１１と建築板１２との突付け箇所６の裏側には、突付け箇所６と構造物下地２の表側（下地板２０の表面）との間に防水部材５の板状部５１が配置される。したがって、突付け箇所６に生じる建築板１１と建築板１２との隙間に雨水が浸入しても板状部５１で受けて軒側へと流すことができる。 And in the new roof formed by the said 1st and 2nd construction method, in the adjoining part 4 of the eaves side construction board 11 and the construction board 12 and the ridge side construction board 13, the construction board adjoining in the eaves direction. The plate-shaped portion 51 of the waterproof member 5 is arranged on the back side of the projecting point 6 between the building 11 and the building board 12 and between the projecting site 6 and the front side of the structure substrate 2 (the surface of the substrate 20). .. Therefore, even if rainwater enters the gap between the building board 11 and the building board 12 at the abutting point 6, the rainwater can be received by the plate-shaped portion 51 and flowed to the eaves side.

また、軒側の建築板１１及び建築板１２と棟側の建築板１３との隣接箇所４において、建築板１１と建築板１２と建築板１３との位置関係は防水部材５により決めやすい。すなわち、棟側の建築板１３と防水部材５とは棟側の差し込み部５６１及び軒側の差し込み部５６２により、それらの互いの位置関係が容易に決まり、かつ、棟側の建築板１３と位置決めされた防水部材５に軒側の建築板１１及び建築板１２とが位置決め部５３により位置決めするため、建築板１１及び建築板１２と建築板１３の位置関係が決めやすくなる。 Further, in the adjoining portion 4 between the eaves side building board 11 and the building board 12 and the ridge side building board 13, the positional relationship between the building board 11, the building board 12 and the building board 13 can be easily determined by the waterproof member 5. That is, the building board 13 on the ridge side and the waterproof member 5 are easily determined by the ridge-side plug portion 561 and the eaves-side plug portion 562, and are positioned relative to the ridge side building board 13. Since the eaves side building board 11 and the building board 12 are positioned by the positioning portion 53 on the waterproof member 5, the positional relationship between the building board 11 and the building board 12 and the building board 13 can be easily determined.

（変形例）
以上説明した本実施形態は、適宜設計変更可能である。例えば、構造物下地、建築板、防水部材の各々の材質や形状は、適宜変更可能である。例えば、防水部材の形状は、水を受けて下段（軒側）の建築板に排水する形であれば、形は問わず、長方形、正方形、羽付き形等の形状であってもよい。 (Modification)
The design of the present embodiment described above can be changed as appropriate. For example, the material and shape of each of the structure base, the building board, and the waterproof member can be appropriately changed. For example, the waterproof member may have any shape, such as a rectangle, a square, or a winged shape, as long as it receives water and drains the water to the lower (eaves side) building board.

上記では、既設屋根の改修構造について説明したが、これに限られず、本実施形態は構造物下地が階段状に施工された複数の板材で形成されたものに建築板を施工する場合にも適用できる。 In the above, the structure for renovating the existing roof has been described, but the present invention is not limited to this, and the present embodiment is also applied to the case where a building board is constructed on a structure base formed of a plurality of stair-like planks. it can.

また上記では、屋根構造について説明したが、これに限られず、本実施形態は壁構造を施工する場合にも適用できる。この場合、構造物下地は壁下地であり、建築板は外壁材や内壁材などの壁材である。さらには、建築板は、フェンスなどの外構に設置されるものであってもよい。 Further, although the roof structure has been described above, the present invention is not limited to this, and the present embodiment can also be applied to the case of constructing a wall structure. In this case, the structure foundation is a wall foundation, and the building board is a wall material such as an outer wall material or an inner wall material. Further, the building board may be installed on an external structure such as a fence.

また上記では、堰部は折り曲げ加工により板状部と一体に形成しているが、これに限られず、堰部は板状部とは別体で、水を止める効果のある部材を板状部に接着して設けてもよい。例えば、エプトシーラーやシーリング等などの樹脂製部材で堰部を形成してもよい。 Further, in the above, the weir portion is formed integrally with the plate-shaped portion by bending, but the invention is not limited to this, and the weir portion is a separate body from the plate-shaped portion, and the member that has an effect of stopping water is a plate-shaped portion. It may be provided by adhering to. For example, the dam portion may be formed of a resin member such as an Ept sealer or a sealing.

また上記では、防水部材５の差し込み部５６として、棟側の差し込み部５６１及び軒側の差し込み部５６２で構成されているが、これに限定されず、いずれか一方であってもよい。 Further, in the above description, the insertion portion 56 of the waterproof member 5 is configured by the ridge-side insertion portion 561 and the eaves-side insertion portion 562, but the invention is not limited to this, and either one may be used.

また上記では、差し込み部５６と重なり部分２５とが接着されているが、これに限定されず、接着されていなくてもよい。 Further, in the above, the insertion portion 56 and the overlapping portion 25 are adhered, but the present invention is not limited to this, and they may not be adhered.

（まとめ）
以上説明したように、第１の態様に係る建築板の施工構造は、上下方向に複数の下地板（２０）が階段状に並べられて形成される構造物下地（２）と、構造物下地（２）上に左右方向に突付けて配置されると共に、上下方向で端部同士が重なり合って階段状に配置される複数の建築板（１）と、複数の建築板（１）の突付け箇所（６）の裏側に配置される防水部材（５）と、を備える。防水部材（５）は、複数の建築板（１）の突付け箇所（６）と構造物下地（２）との間に配置される板状部（５１）と、上下方向に隣接する下地板（２０）の端部（２３ａ、２３ｂ）の重なり部分（２５）に差し込まれる差し込み部（５６）と、を有する。 (Summary)
As described above, the construction structure of the building board according to the first aspect has a structure base (2) formed by arranging a plurality of base plates (20) in a vertical direction in a stepwise manner, and a structure base. (2) A plurality of building boards (1), which are arranged so as to project in the left-right direction on top of each other, and which are arranged in a stepwise manner with their ends overlapping each other in the vertical direction, and the projection of the plurality of building boards (1) A waterproof member (5) arranged on the back side of the location (6). The waterproofing member (5) is a base plate that is vertically adjacent to a plate-like portion (51) arranged between the projecting points (6) of the plurality of building boards (1) and the structure base (2). And an insertion portion (56) to be inserted into the overlapping portion (25) of the end portions (23a, 23b) of (20).

この態様によれば、防水部材（５）を構造物下地（２）に固定する際に、釘打ちやビス留めなどの固定具による固定作業を行わなくてもよく、構造物下地（２）にある重なり部分（２５）への差し込み部（５６）の差し込みを利用することができ、施工にかかる手間を軽減することができる。 According to this aspect, when fixing the waterproof member (5) to the structure base (2), fixing work such as nailing or screwing does not have to be performed, and the structure base (2) can be fixed. It is possible to use the insertion of the insertion portion (56) into a certain overlapping portion (25), and it is possible to reduce the labor required for construction.

第２の態様に係る建築板の施工構造は、第１の態様において、構造物下地（２）は、重なり部分（２５）として、第一の重なり部分（２５１）と、第一の重なり部分（２５１）よりも下方に位置する第二の重なり部分（２５２）と、を備える。防水部材（５）は、差し込み部（５６）として、第一の重なり部分（２５１）に差し込まれる第一の差し込み部（５６１）と、第二の重なり部分（２５２）に差し込まれる第二の差し込み部（５６２）と、を備える。 In the construction structure for a building board according to a second aspect, in the first aspect, the structure base (2) serves as an overlapping portion (25), and a first overlapping portion (251) and a first overlapping portion ( A second overlapping portion (252) located below 251). The waterproof member (5) has, as the insertion portion (56), a first insertion portion (561) inserted into the first overlapping portion (251) and a second insertion portion inserted into the second overlapping portion (252). And a section (562).

この態様によれば、防水部材（５）の構造物下地（２）への固定は、第一の重なり部分（２５１）に差し込まれる第一の差し込み部（５６１）と、第二の重なり部分（２５２）に差し込まれる第二の差し込み部（５６２）との複数箇所で行うことができ、一箇所で防水部材５を固定する場合に比べて、防水部材（５）の固定強度を高めることができる。 According to this aspect, the waterproof member (5) is fixed to the structure underlayer (2) by the first insertion part (561) inserted into the first overlapping part (251) and the second overlapping part (561). It can be carried out at a plurality of positions with the second insertion part (562) to be inserted into 252), and the fixing strength of the waterproof member (5) can be enhanced as compared with the case where the waterproof member 5 is fixed at one position. ..

第３の態様に係る建築板の施工構造は、第１又は２の態様において、差し込み部（５６）は、重なり部分（２５）の下地板（２０）に接着されている。 In the construction structure for a building board according to the third aspect, in the first or second aspect, the insertion portion (56) is adhered to the base plate (20) of the overlapping portion (25).

この態様によれば、防水部材（５）の構造物下地（２）への固定は、重なり部分（２５）への差し込み部（５６）の差し込みに加えて、差し込み部（５６）の下地板（２０）への接着でも行うことができ、防水部材（５）の固定強度を高めることができる。 According to this aspect, the waterproof member (5) is fixed to the structure underlayer (2) in addition to the insertion of the insertion portion (56) into the overlapping portion (25), and the underlayer plate (56) of the insertion portion (56). It can also be performed by adhesion to the waterproof member (20), and the fixing strength of the waterproof member (5) can be increased.

第４の態様に係る建築板の施工構造は、第１ないし３の態様において、板状部（５１）の表面の少なくとも左右方向両端部に堰部（５５）が設けられている。 In the construction structure for a building board according to the fourth aspect, in the first to third aspects, weir portions (55) are provided on at least both left and right ends of the surface of the plate-like portion (51).

この態様によれば、堰部（５５）により、雨水が軒方向で隣接する建築板（１）の突付け箇所（６）から板状部（５１）上に落下したときに、この雨水を堰き止めて広がりを抑えつつ、板状部（５１）の軒側に排出されるようにガイドすることができ、突付け箇所（６）の防水性を向上させることができる。 According to this aspect, the rainwater is dammed by the dam portion (55) when the rainwater falls on the plate-shaped portion (51) from the projecting point (6) of the building board (1) adjacent in the eaves direction. It can be guided to be discharged to the eaves side of the plate-like portion (51) while being stopped and suppressing the spread, and the waterproofness of the abutting portion (6) can be improved.

第５の態様に係る屋根の改修構造は、第１ないし４の態様において、構造物下地（２）が既設屋根であり、建築板（１）が新設屋根材である。 In the roof refurbishment structure according to the fifth aspect, in the first to fourth aspects, the structure base (2) is an existing roof and the building board (1) is a new roof material.

この態様によれば、既設屋根を改修するにあたって、防水部材（５）を構造物下地（２）に固定する際に、釘打ちやビス留めなどの固定具による固定作業を行う必要がなく、構造物下地（２）にある重なり部分（２５）への差し込み部（５６）の差し込みを利用することができ、施工に手間がかからないようにすることができる。 According to this aspect, when repairing the existing roof, when fixing the waterproof member (5) to the structure base (2), it is not necessary to perform fixing work with a fixing tool such as nailing or screwing, and the structure is improved. It is possible to use the insertion of the insertion portion (56) into the overlapping portion (25) on the object base (2), which can save the construction work.

第６の態様に係る防水部材は、上下方向に複数の下地板（２０）が階段状に並べられて形成される構造物下地（２）上に、左右方向に突付けて配置されると共に上下方向で端部同士が重なり合って階段状に配置される複数の建築板（１）を保持する防水部材（５）である。複数の建築板（１）の突付け箇所（６）と構造物下地（２）との間に配置される板状部（５１）と、上下方向に隣接する下地板（２０）の端部（２３ａ、２３ｂ）の重なり部分（２５）に差し込まれる差し込み部（５６）と、を有する。 The waterproof member according to the sixth aspect is arranged so as to project in the left-right direction on the structure base (2) formed by arranging a plurality of base plates (20) in the vertical direction in a stepwise manner, and is also vertically arranged. A waterproof member (5) for holding a plurality of building boards (1) arranged in a step-like manner with their ends overlapping each other in the direction. A plate-like portion (51) arranged between the projecting portions (6) of the plurality of building boards (1) and the structure foundation (2), and an end portion of the foundation board (20) vertically adjacent to each other ( 23a, 23b) and an insertion portion (56) to be inserted into the overlapping portion (25).

この態様によれば、防水部材（５）を構造物下地（２）に固定する際に、釘打ちやビス留めなどの固定具による固定作業を行わなくてもよく、構造物下地（２）にある重なり部分（２５）への差し込み部（５６）の差し込みを利用することができ、施工に手間がかからないようにすることができる。 According to this aspect, when fixing the waterproof member (5) to the structure base (2), fixing work such as nailing or screwing does not have to be performed, and the structure base (2) can be fixed. The insertion of the insertion part (56) into a certain overlapping part (25) can be used, and the construction can be done without trouble.

１建築板
２構造物下地
２０下地板
２３ａ端部
２３ｂ端部
２５重なり部分
２５１第一の重なり部分
２５２第二の重なり部分
５防止部材
５１板状部
５５堰部
５６差し込み部
５６１第一の差し込み部
５６２第二の差し込み部
６突付け箇所 DESCRIPTION OF SYMBOLS 1 Building board 2 Structure base 20 Base board 23a End part 23b End part 25 Overlap part 251 First overlap part 252 Second overlap part 5 Preventing member 51 Plate part 55 Weir part 56 Insert part 561 First insert part 562 2nd insertion part 6 Abutting point

Claims

A structure base formed by arranging a plurality of base plates in a vertical direction in a stepwise manner,
A plurality of building boards that are arranged so as to project in the left-right direction on the structure base and that are arranged in a stepwise manner with their ends overlapping each other in the vertical direction,
A waterproof member disposed on the back side of the projecting portion of the plurality of building boards,
The waterproof member is a plate-shaped portion arranged between the projecting portions of the plurality of building boards and the structure base, and a plug-in portion that is inserted into an overlapping portion of the end portions of the base plate that are vertically adjacent to each other. And have,
Construction structure of building board.

In claim 1,
The structure foundation, as the overlapping portion, a first overlapping portion, and a second overlapping portion located below the first overlapping portion,
The waterproof member includes, as the insertion portion, a first insertion portion which is inserted into the first overlapping portion and a second insertion portion which is inserted into the second overlapping portion.
Construction structure of building board.

In claim 1 or 2,
The insertion portion is bonded to the base plate in the overlapping portion,
Construction structure of building board.

In any one of Claim 1 thru|or 3,
Weirs are provided on at least both ends in the left-right direction on the surface of the plate-shaped portion,
Construction structure of building board.

In any one of Claim 1 thru|or 4,
The structure base is an existing roof,
The building board is a new roof material,
Roof renovation structure.

A plurality of base plates that are formed by arranging a plurality of base plates in the vertical direction on the structure base that are projected in the left-right direction and are arranged in a step-like manner with their ends overlapping each other in the vertical direction. A waterproof member for holding a building board,
A plate-shaped portion disposed between the abutting points of the plurality of building boards and the structure base, and a plug-in portion that is inserted into an overlapping portion of the end portions of the base plate that are vertically adjacent to each other,
Waterproof material.