JP6989290B2

JP6989290B2 - Construction structure of building board

Info

Publication number: JP6989290B2
Application number: JP2017104955A
Authority: JP
Inventors: 真人中村; 庸介松岡; 直人山川; 敦史山本
Original assignee: Kubota Matsushitadenko Exterior Works Ltd; KMEW Co Ltd
Current assignee: KMEW Co Ltd
Priority date: 2017-05-26
Filing date: 2017-05-26
Publication date: 2022-01-05
Anticipated expiration: 2037-05-26
Also published as: JP2018199943A

Description

本発明は、建築板の施工構造に関し、詳しくは複数の建築板が階段状に重ねられて構造物下地に施工された建築板の施工構造に関する。 The present invention relates to a construction structure of a building board, and more particularly to a construction structure of a building board in which a plurality of building boards are stacked in a staircase pattern and constructed on a structure base.

特許文献１には、平板屋根材が軒側から棟側に向かって重ね葺きされた施工構造が開示されている。 Patent Document 1 discloses a construction structure in which flat roofing materials are layered from the eaves side to the ridge side.

特開２０１２−２４６７０８号公報Japanese Unexamined Patent Publication No. 2012-246708

ところで、特許文献１に開示された平板屋根材の施工構造においては、平板屋根材が軒側の平板屋根材に直接重ね合わされるため、断熱性が優れない。 By the way, in the construction structure of the flat roofing material disclosed in Patent Document 1, since the flat roofing material is directly overlapped with the flat roofing material on the eaves side, the heat insulating property is not excellent.

本発明は前記事情に鑑みてなされたものであって、断熱性に優れた建築板の施工構造を提供することを目的とする。 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a construction structure of a building board having excellent heat insulating properties.

前記目的を達成するために本発明に係る一態様の建築板の施工構造は、複数の建築板が階段状に重ねられて構造物下地に施工された建築板の施工構造であって、前記建築板の裏側に配置された断熱材を備えたことを特徴とする。 In order to achieve the above object, the construction structure of the building board according to the present invention is a construction structure of the building board in which a plurality of building boards are stacked in a staircase pattern and constructed on the base of the structure. It is characterized by having a heat insulating material arranged on the back side of the board.

本発明に係る建築板の施工構造は、建築板の裏側に配置された断熱材により、断熱性が高まる。また、建築板の施工時や改修時において作業者により建築板が踏まれたりしても、建築板が割れ難くなる。 In the construction structure of the building board according to the present invention, the heat insulating property is enhanced by the heat insulating material arranged on the back side of the building board. In addition, even if the building board is stepped on by a worker during construction or repair of the building board, the building board is less likely to crack.

図１は、本発明に係る一実施形態の建築板の施工構造を示した側断面図である。FIG. 1 is a side sectional view showing a construction structure of a building board according to an embodiment of the present invention. 図２Ａは、同上の施工構造の軒側から見た正面図であり、図２Ｂは図２ＡのＣ部拡大図である。FIG. 2A is a front view of the same construction structure as seen from the eaves side, and FIG. 2B is an enlarged view of portion C of FIG. 2A. 図３Ａは図１ＡのＡ部拡大図であり、図３Ｂは図１のＢ部拡大図である。3A is an enlarged view of part A of FIG. 1A, and FIG. 3B is an enlarged view of part B of FIG. 図４Ａ〜図４Ｄは、同上の建築板の施工構造に用いられる支持部材（支持部材）であって、図４Ａは正面図であり、図４Ｂは側面図であり、図４Ｃは図４ＡのＤ部拡大図であり、図４Ｄは図４ＡのＥ−Ｅ線断面図である。4A to 4D are support members (support members) used in the construction structure of the same building board, FIG. 4A is a front view, FIG. 4B is a side view, and FIG. 4C is D of FIG. 4A. It is a partially enlarged view, and FIG. 4D is a sectional view taken along line EE of FIG. 4A.

以下、添付図面に基づいて、本実施形態の建築板の施工構造について説明する。 Hereinafter, the construction structure of the building board of the present embodiment will be described with reference to the attached drawings.

図１に示す本実施形態の建築板の施工構造は、構造物下地と、複数の建築板と、複数の支持部材３と、複数の断熱材５と、複数の固着具６，７とを備えている。本実施形態の建築板は、屋根板２であって、構造物下地は野地板で構成された屋根下地１である。複数の屋根板２は、階段状に重ねられて屋根下地１に施工されている。また、本実施形態の建築板の施工構造では、複数の屋根板２が階段方向と直交する方向に突付け施工されている。ここで、「階段方向」とは、階段状に重ねられた複数の屋根板２が並ぶ方向であり、本実施形態では後述する軒棟方向である。 The construction structure of the building board of the present embodiment shown in FIG. 1 includes a structure base, a plurality of building boards, a plurality of support members 3, a plurality of heat insulating materials 5, and a plurality of fasteners 6 and 7. ing. The building board of the present embodiment is a roof board 2, and the structural base is a roof base 1 composed of a field board. The plurality of roof plates 2 are stacked in a staircase pattern and constructed on the roof base 1. Further, in the construction structure of the building board of the present embodiment, a plurality of roof boards 2 are struck and constructed in a direction orthogonal to the staircase direction. Here, the "staircase direction" is the direction in which a plurality of roof plates 2 stacked in a staircase shape are lined up, and is the eaves building direction described later in the present embodiment.

（建築板）
本実施形態の屋根板２は、平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。 (Building board)
The roof plate 2 of the present embodiment is a flat plate-shaped slate roof tile, and is manufactured by molding a cement-based molding material and curing and curing it.

複数の屋根板２は、図２に示すように、屋根下地１上に、軒棟方向と軒方向との両方向に並んだ状態で設置されている。ここで、軒棟方向とは屋根の勾配方向であり、軒方向とは軒棟方向と直交する水平方向である。 As shown in FIG. 2, the plurality of roof plates 2 are installed on the roof base 1 in a state of being arranged side by side in both the eaves direction and the eaves direction. Here, the eaves direction is the slope direction of the roof, and the eaves direction is the horizontal direction orthogonal to the eaves direction.

図１に示すように、複数の屋根板２は、軒棟方向に隣接する屋根板２のうち、軒側の屋根板２（以下、軒側屋根板２ａという）の棟側部分が、棟側の屋根板２（以下、棟側屋根板２ｂという）に表側から覆われるように、屋根下地１上に設置されている。すなわち、軒棟方向に隣接する屋根板２にあっては、一方の屋根板２（軒側屋根板２ａ）の隣接方向他方側（棟側）の部分が、他方の屋根板２（棟側屋根板２ｂ）に表側から覆われるように施工されている。なお、図１及び図２では、便宜上、複数の屋根板２のうち、軒側から数えて２段目の屋根板２を軒側屋根板２ａとし、軒側から数えて３段目の屋根板２を棟側屋根板２ｂとしている。 As shown in FIG. 1, among the roof plates 2 adjacent to each other in the eaves building direction, the ridge side portion of the eaves side roof plate 2 (hereinafter referred to as eaves side roof plate 2a) is the ridge side of the plurality of roof plates 2. It is installed on the roof base 1 so as to be covered from the front side by the roof plate 2 (hereinafter referred to as the ridge side roof plate 2b). That is, in the roof plate 2 adjacent to the eaves building direction, the portion of one roof plate 2 (eave side roof plate 2a) on the other side (building side) in the adjacent direction is the other roof plate 2 (building side roof). It is constructed so as to be covered from the front side on the board 2b). In addition, in FIGS. 1 and 2, for convenience, the roof plate 2 on the second stage counting from the eave side is referred to as the roof plate 2a on the eave side, and the roof plate 2 on the third stage counting from the eave side is used. 2 is the roof plate 2b on the ridge side.

本実施形態では、図２に示すように軒方向に隣接する屋根板２が、端面同士を突合せて軒方向に突付けた状態で施工されている。以下、軒方向に隣接する屋根板２の突付けた部分を突付け部分２５という。 In the present embodiment, as shown in FIG. 2, the roof plates 2 adjacent to each other in the eaves direction are constructed in a state where the end faces are butted against each other and abutted in the eaves direction. Hereinafter, the abutted portion of the roof plate 2 adjacent to the eaves direction is referred to as a abutting portion 25.

また、本実施形態の複数の屋根板２は、千鳥状に配置されており、軒棟方向に隣接する屋根板２のうち、軒側屋根板２ａは、棟側屋根板２ｂと、軒方向においてずれた状態で配置されている。 Further, a plurality of shingles 2 of the present embodiment is arranged in a staggered manner, of the roof plate 2 adjacent the eaves ridge direction, eaves side roof board 2 a includes a ridge side shop root plate 2 b, They are arranged so that they are offset in the direction of the eaves.

図１に示すように屋根板２は、軒棟方向と軒方向との両者に直交する方向に見て、棟側に隣接した屋根板２と重なって表面が露出しない重なり部２０と、棟側に隣接した屋根板２とは重ならない非重なり部２１とを備えている。 As shown in FIG. 1, the roof plate 2 has an overlapping portion 20 that overlaps with the roof plate 2 adjacent to the ridge side and the surface is not exposed when viewed in a direction orthogonal to both the eaves direction and the eaves direction, and the ridge side. It is provided with a non-overlapping portion 21 that does not overlap with the roof plate 2 adjacent to the roof plate 2.

（支持部材）
各屋根板２の軒側端部２２の裏側には、支持部材３が設けられている。本実施形態の建築板の施工構造は、支持部材３として、複数の屋根板２のうち最も軒側に位置する屋根板２（以下、軒端屋根板２ｃという）の裏側に設けられた第１支持部材３ａと、複数の屋根板２のうち軒端屋根板２ｃを除く他の屋根板２の裏側に設けられた第２支持部材３ｂとを備えている。 (Support member)
A support member 3 is provided on the back side of the eaves side end portion 22 of each roof plate 2. In the construction structure of the building board of the present embodiment, as the support member 3, the first support provided on the back side of the roof board 2 (hereinafter referred to as eaves edge roof board 2c) located on the eaves side of the plurality of roof boards 2. It includes a member 3a and a second support member 3b provided on the back side of the other roof plates 2 other than the eaves edge roof plate 2c among the plurality of roof plates 2.

軒端屋根板２ｃの軒側端部２２は、この裏側の施工面を構成する屋根下地１の表面に第１支持部材３ａを介して施工されている。本実施形態の第１支持部材３ａは、軒方向に複数設けられている。 The eaves side end portion 22 of the eaves edge roof plate 2c is constructed on the surface of the roof base 1 constituting the construction surface on the back side thereof via the first support member 3a. A plurality of first support members 3a of the present embodiment are provided in the eaves direction.

軒端屋根板２ｃ以外の屋根板２における軒側端部（下段の屋根板２に重ねられる端部）２２は、この裏側の施工面を構成する屋根板２の表面に第２支持部材３ｂを介して施工されている。本実施形態の第２支持部材３ｂは、軒方向に複数設けられている。 The eaves side end portion (end portion overlapped with the lower roof plate 2) 22 of the roof plate 2 other than the eave end roof plate 2c is placed on the surface of the roof plate 2 constituting the construction surface on the back side via the second support member 3b. It is being constructed. A plurality of second support members 3b of the present embodiment are provided in the eaves direction.

（第１支持部材）
第１支持部材３ａは、軒方向に延びており、その長手方向は軒方向と一致している。図４Ａ〜図４Ｄに示す本実施形態の第１支持部材３ａは金属製であって、金属板を曲げ加工して形成されている。 (First support member)
The first support member 3a extends in the eaves direction, and its longitudinal direction coincides with the eaves direction. The first support member 3a of the present embodiment shown in FIGS. 4A to 4D is made of metal and is formed by bending a metal plate.

図３Ａに示すように、本実施形態の第１支持部材３ａは、軒端屋根板２ｃの軒側端部２２を裏側から持ち上げて支持する支持部３３と、軒端屋根板２ｃの軒側端部２２と対向するように支持部３３から立ち上がる立ち上がり部３４とを備えている。支持部３３により軒端屋根板２ｃの軒側端部２２が持ち上げられることで、軒端屋根板２ｃは外観上厚く見える。また、立ち上がり部３４は軒端屋根板２ｃの軒側への移動を規制する。 As shown in FIG. 3A, the first support member 3a of the present embodiment has a support portion 33 that lifts and supports the eaves side end portion 22 of the eaves edge roof plate 2c from the back side, and an eaves side end portion 22 of the eaves edge roof plate 2c. It is provided with a rising portion 34 that rises from the supporting portion 33 so as to face the above. By lifting the eaves side end portion 22 of the eaves edge roof plate 2c by the support portion 33, the eaves edge roof plate 2c looks thick in appearance. Further, the rising portion 34 restricts the movement of the eaves edge roof plate 2c to the eaves side.

本実施形態の第１支持部材３ａは、図２に示すように、軒端屋根板２ｃと軒方向の幅が同じである。 As shown in FIG. 2, the first support member 3a of the present embodiment has the same width in the eaves direction as the eaves edge roof plate 2c.

なお、第１支持部材３ａは、軒端屋根板２ｃよりも軒方向の幅が長く、軒端屋根板２ｃから、軒端屋根板２ｃの軒方向に隣接した軒端屋根板２ｃ（隣接建築板）まで延びていてもよい。また、第１支持部材３ａは、軒端屋根板２ｃよりも軒方向の幅が短くてもよい。 The first support member 3a has a longer width in the eaves direction than the eaves edge roof plate 2c, and extends from the eaves edge roof plate 2c to the eaves edge roof plate 2c (adjacent building plate) adjacent to the eaves edge roof plate 2c in the eaves direction. You may. Further, the width of the first support member 3a in the eaves direction may be shorter than that of the eaves edge roof plate 2c.

図３Ａに示すように、本実施形態の支持部３３は、軒方向と直交する断面の形状がハット状であり、一対の設置片部３５，３６と、一対の立上片部３７，３８と、支持片部３９とを備えている。 As shown in FIG. 3A, the support portion 33 of the present embodiment has a hat-shaped cross section orthogonal to the eaves direction, and has a pair of installation piece portions 35 and 36 and a pair of rising piece portions 37 and 38. , The support piece portion 39 is provided.

一対の設置片部３５，３６は軒棟方向に離間して配置されている。設置片部３５，３６は屋根下地１の表面に沿った板状に形成されている。 The pair of installation pieces 35 and 36 are arranged apart from each other in the direction of the eaves. The installation pieces 35 and 36 are formed in a plate shape along the surface of the roof base 1.

一対の設置片部３５，３６のうち、棟側の設置片部３６は、屋根下地１に固着される固着部を構成している。設置片部３６には、軒方向に並んだ複数の挿通孔４０が形成されている。 Of the pair of installation piece portions 35, 36, the installation piece portion 36 on the ridge side constitutes a fixing portion to be fixed to the roof base 1. A plurality of insertion holes 40 arranged in the eaves direction are formed in the installation piece portion 36.

挿通孔４０には、釘又はねじからなる固着具６が挿通されており、固着具６は屋根下地１に打入されている。これにより、設置片部３６は屋根下地１に固着され、第１支持部材３ａは屋根下地１に対して固定されている。 A fixing tool 6 made of a nail or a screw is inserted into the insertion hole 40, and the fixing tool 6 is driven into the roof base 1. As a result, the installation piece portion 36 is fixed to the roof base 1, and the first support member 3a is fixed to the roof base 1.

一対の立上片部３７，３８は、軒側の設置片部３５の棟側端及び棟側の設置片部３６の軒側端からそれぞれ表側（上側）に向かって延出している。立上片部３７，３８は設置片部３５，３６に対して垂直な板状に形成されている。 The pair of rising pieces 37 and 38 extend from the ridge-side end of the eave-side installation piece 35 and the eave-side end of the ridge-side installation piece 36 toward the front side (upper side), respectively. The rising piece portions 37 and 38 are formed in a plate shape perpendicular to the installation piece portions 35 and 36.

支持片部３９は一対の立上片部３７，３８の上端（屋根下地１側とは反対側の端）同士を繋いでおり、軒端屋根板２ｃの軒側端部２２の裏面に沿った板状に形成されている。 The support piece portion 39 connects the upper ends of the pair of rising pieces 37 and 38 (the ends opposite to the roof base 1 side) to each other, and is a plate along the back surface of the eaves side end portion 22 of the eaves end roof plate 2c. It is formed in a shape.

軒端屋根板２ｃの軒側端部２２は、支持片部３９に載置されることで、屋根下地１の表面から上方に離れた位置で支持されている。軒端屋根板２ｃは、図１に示すように、軒側端に近い部分ほど屋根下地１の表面から離れるように軒棟方向に対して傾斜している。 The eaves side end portion 22 of the eaves edge roof plate 2c is placed on the support piece portion 39 and is supported at a position upward away from the surface of the roof base 1. As shown in FIG. 1, the eaves edge roof plate 2c is inclined toward the eaves building so that the portion closer to the eaves side edge is separated from the surface of the roof base 1.

図３Ａに示すように、第１支持部材３ａが備えた立ち上がり部３４は、支持部３３の軒側端に繋がっている。本実施形態の立ち上がり部３４は、軒端屋根板２ｃの軒側端部２２及びこの裏側に形成された隙間８（軒端屋根板２ｃの軒側端部２２と屋根下地１との間）を軒側からカバーする。 As shown in FIG. 3A, the rising portion 34 provided by the first support member 3a is connected to the eaves side end of the support portion 33. The rising portion 34 of the present embodiment has an eaves side end portion 22 of the eaves edge roof plate 2c and a gap 8 formed on the back side thereof (between the eaves side end portion 22 of the eaves edge roof plate 2c and the roof base 1) on the eaves side. Cover from.

本実施形態の立ち上がり部３４は、軒方向と直交する断面の形状が、逆Ｌ字状に形成されており、軒側の設置片部３５の軒側端から表側（上側）に向かって延出した立ち上がり片部４１と、立ち上がり片部４１の上端から棟側に向かって延出した押え片部４２とを備えている。 The rising portion 34 of the present embodiment has an inverted L-shaped cross section orthogonal to the eaves direction, and extends from the eaves side end of the installation piece 35 on the eaves side toward the front side (upper side). It is provided with a rising piece 41 and a holding piece 42 extending from the upper end of the rising piece 41 toward the ridge side.

立ち上がり片部４１は、軒側の立上片部３７と略平行な板状に形成されている。立ち上がり部４１は、軒端屋根板２ｃ及び隙間８の軒側に位置し、軒端屋根板２ｃの軒側端面と立上片部３７とに対向している。軒端屋根板２ｃの軒側端部２２及び隙間８は、立ち上がり部４１により、軒側からカバーされている。 The rising piece 41 is formed in a plate shape substantially parallel to the rising piece 37 on the eaves side. The rising portion 41 is located on the eave side of the eaves edge roof plate 2c and the gap 8, and faces the eaves side end surface of the eaves edge roof plate 2c and the rising piece portion 37. The eaves side end portion 22 and the gap 8 of the eaves edge roof plate 2c are covered from the eaves side by the rising portion 41.

押え片部４２は支持片部３９と略平行な板状に形成されており、支持片部３９よりも上方に位置している。 The presser piece portion 42 is formed in a plate shape substantially parallel to the support piece portion 39, and is located above the support piece portion 39.

第１支持部材３ａには、押え片部４２と支持片部３９とで、棟側に向かって開口した差込溝４３が構成されている。差込溝４３は第１支持部材３ａの長手方向の全長に亘って形成されている。差込溝４３には軒端屋根板２ｃの軒側端部２２が差し込まれている。 In the first support member 3a, the holding piece portion 42 and the support piece portion 39 form an insertion groove 43 that opens toward the ridge side. The insertion groove 43 is formed over the entire length of the first support member 3a in the longitudinal direction. The eaves side end portion 22 of the eaves edge roof plate 2c is inserted into the insertion groove 43.

押え片部４２は軒端屋根板２ｃの軒側端部２２の表面に沿った板状に形成されており、軒端屋根板２ｃの軒側端部２２を表側から押える。なお、押え片部４２は軒端屋根板２ｃの軒側端部２２に接することで屋根下地１から離れる方向に移動することを規制する機能を備えていればよく、施工状態においては、軒側端部２２に対して屋根下地１に近づく方向に力を加えるものであってもよいし、加えないものであってもよい。 The presser piece portion 42 is formed in a plate shape along the surface of the eaves side end portion 22 of the eaves edge roof plate 2c, and presses the eaves side end portion 22 of the eaves edge roof plate 2c from the front side. It should be noted that the presser piece portion 42 may have a function of restricting movement in the direction away from the roof base 1 by coming into contact with the eaves side end portion 22 of the eaves edge roof plate 2c, and in the construction state, the eaves side end may be provided. A force may or may not be applied to the portion 22 in a direction approaching the roof base 1.

（断熱材）
図１に示すように、各屋根板２の裏側には、断熱材５が設けられている。本実施形態の断熱材５は、発泡プラスチックからなる発泡断熱材であって、ポリスチレン樹脂から形成されている。なお、断熱材５は、ウレタン樹脂又はポリエチレン樹脂等のポリスチレン以外の樹脂から形成されてもよい。 (Insulation material)
As shown in FIG. 1, a heat insulating material 5 is provided on the back side of each roof plate 2. The heat insulating material 5 of the present embodiment is a foamed heat insulating material made of foamed plastic and is made of polystyrene resin. The heat insulating material 5 may be formed of a resin other than polystyrene, such as urethane resin or polyethylene resin.

本実施形態の建築板の施工構造は、断熱材５として、軒端屋根板２ｃの裏側に設けられた第１断熱材５ａと、他の屋根板２の裏側に設けられた第２断熱材５ｂとを備えている。各断熱材５ａ，５ｂは、ルーフィング９を介して屋根下地１上に設置されている。 The construction structure of the building board of the present embodiment includes a first heat insulating material 5a provided on the back side of the eaves edge roof plate 2c and a second heat insulating material 5b provided on the back side of the other roof board 2 as the heat insulating material 5. It is equipped with. The heat insulating materials 5a and 5b are installed on the roof base 1 via the roofing 9.

（第１断熱材）
軒端屋根板２ｃは第１断熱材５ａを介して屋根下地１上に施工されており、これにより屋根において軒端屋根板２ｃが施工された部分の断熱性が高くなっている。また、第１断熱材５ａはクッション性を有するため、屋根板２の施工時や改修時において作業者によって軒端屋根板２ｃが踏まれる等して、軒端屋根板２ｃが割れることが抑制される。 (1st heat insulating material)
The eaves edge roof plate 2c is constructed on the roof base 1 via the first heat insulating material 5a, whereby the heat insulating property of the portion of the roof on which the eaves edge roof plate 2c is constructed is high. Further, since the first heat insulating material 5a has a cushioning property, it is possible to prevent the eaves edge roof plate 2c from being cracked due to the worker stepping on the eaves edge roof plate 2c at the time of construction or repair of the roof plate 2.

第１断熱材５ａは、軒方向に延びた長尺状に形成されている。第１断熱材５ａの軒方向の幅は、軒端屋根板２ｃの軒方向の幅と比較して、長くてもよいし、短くてもよい。また、第１断熱材５ａの軒方向の幅は、軒端屋根板２ｃの軒方向の幅と同じであってもよい。 The first heat insulating material 5a is formed in a long shape extending in the eaves direction. The width of the first heat insulating material 5a in the eaves direction may be longer or shorter than the width of the eaves edge roof plate 2c in the eaves direction. Further, the width of the first heat insulating material 5a in the eaves direction may be the same as the width of the eaves edge roof plate 2c in the eaves direction.

第１断熱材５ａの軒方向と直交する断面の形状は、直角三角形状である。第１断熱材５ａの裏面は、屋根下地１の表面と第１支持部材３ａの設置片部３６の表面に沿っている。第１断熱材５ａの軒側端面は、第１支持部材３ａの棟側の立上片部３８の棟側面に沿っている。第１断熱材５ａの表面は、軒端屋根板２ｃの裏面に沿っている。第１断熱材５ａは、軒方向に見て、屋根下地１、支持部材３、軒端屋根板２ｃで囲まれた領域の全体に亘っている。 The shape of the cross section orthogonal to the eaves direction of the first heat insulating material 5a is a right-angled triangular shape. The back surface of the first heat insulating material 5a is along the surface of the roof base 1 and the surface of the installation piece portion 36 of the first support member 3a. The eaves-side end surface of the first heat insulating material 5a is along the ridge side surface of the rising piece portion 38 on the ridge side of the first support member 3a. The surface of the first heat insulating material 5a is along the back surface of the eaves edge roof plate 2c. The first heat insulating material 5a covers the entire area surrounded by the roof base 1, the support member 3, and the eaves edge roof plate 2c when viewed in the eaves direction.

（第２支持部材）
軒端屋根板２ｃ以外の屋根板２の軒側端部２２の裏側に設けられた第２支持部材３ｂは、第１支持部材３ａと略同じ構成を有している。このため、以下では第２支持部材３ｂにおいて第１支持部材３ａと共通する構成には同一の符号を付して重複する説明を省略する。 (Second support member)
The second support member 3b provided on the back side of the eaves side end portion 22 of the roof plate 2 other than the eave end roof plate 2c has substantially the same configuration as the first support member 3a. Therefore, in the following, the same reference numerals will be given to the configurations common to the first support member 3a in the second support member 3b, and duplicate description will be omitted.

図３Ｂに示すように、第２支持部材３ｂは、軒側屋根板２ａと棟側屋根板２ｂの軒側端部２２との間に位置している。第２支持部材３ｂの支持部３３は、棟側屋根板２ｂの軒側端部２２を裏側から持ち上げて支持している。これにより、棟側屋根板２ｂは外観上厚く見える。本実施形態の第２支持部材３ｂの立ち上がり部３４は、棟側屋根板２ｂの軒側端部２２及びこの裏側に形成された隙間８（軒側屋根板２ａと棟側屋根板２ｂの間）を軒側からカバーする。これにより、棟側屋根板２ｂはより一層厚く見える。 As shown in FIG. 3B, the second support member 3b is located between the eave-side roof plate 2a and the eave-side end 22 of the ridge-side roof plate 2b. The support portion 33 of the second support member 3b lifts and supports the eaves-side end portion 22 of the ridge-side roof plate 2b from the back side. As a result, the roof plate 2b on the ridge side looks thick in appearance. The rising portion 34 of the second support member 3b of the present embodiment is the eaves side end portion 22 of the ridge side roof plate 2b and the gap 8 formed on the back side thereof (between the eave side roof plate 2a and the ridge side roof plate 2b). Is covered from the eaves side. As a result, the roof plate 2b on the ridge side looks even thicker.

図２に示すように、第２支持部材３ｂの軒方向の幅は、軒側屋根板２ａの軒方向の幅、及び棟側屋根板２ｂの軒方向の幅と同じである。 As shown in FIG. 2, the width of the second support member 3b in the eaves direction is the same as the width of the eaves-side roof plate 2a in the eaves direction and the width of the ridge-side roof plate 2b in the eaves direction.

複数の第２支持部材３ｂの中には、軒方向に並んだ複数の軒側屋根板２ａに亘る第２支持部材３ｂと、軒方向に並んだ複数の棟側屋根板２ｂに亘る第２支持部材３ｂとがある。すなわち、複数の第２支持部材３ｂの中には、軒側屋根板２ａからこの軒側屋根板２ａに軒方向において隣接した軒側屋根板２ａ（隣接建築板）まで延びた第２支持部材３ｂと、棟側屋根板２ｂ及びこの棟側屋根板２ｂに軒方向において隣接した棟側屋根板２ｂまで延びた第２支持部材３ｂとがある。 Among the plurality of second support members 3b, a second support member 3b extending over a plurality of eaves-side roof plates 2a arranged in the eaves direction and a second support over a plurality of ridge-side roof plates 2b arranged in the eaves direction are included. There is a member 3b. That is, in the plurality of second support members 3b, the second support member 3b extending from the eave-side roof plate 2a to the eave-side roof plate 2a (adjacent building plate) adjacent to the eave-side roof plate 2a in the eave direction. And a second support member 3b extending to the ridge-side roof plate 2b adjacent to the ridge-side roof plate 2b in the eave direction.

図３Ｂに示すように、第２支持部材３ｂの一対の設置片部３５，３６は、軒側屋根板２ａの表面に沿っている。本実施形態の第２支持部材３ｂは、図１に示すように、支持部３３の高さ（設置片部３５から支持片部３９までの距離）が、第１支持部材３ａの支持部３３の高さよりも短くなっており、これにより、棟側屋根板２ｂの軒側端部２２の屋根下地１からの高さは、軒端屋根板２ｃの軒側端部２２の屋根下地１からの高さと略同じになっている。 As shown in FIG. 3B, the pair of installation piece portions 35, 36 of the second support member 3b are along the surface of the eaves side roof plate 2a. In the second support member 3b of the present embodiment, as shown in FIG. 1, the height of the support portion 33 (distance from the installation piece portion 35 to the support piece portion 39) is the same as that of the support portion 33 of the first support member 3a. It is shorter than the height, so that the height of the eaves side end 22 of the ridge side roof plate 2b from the roof base 1 is the height of the eaves side end 22 of the eaves side roof plate 2c from the roof base 1. It is almost the same.

図３Ｂに示すように、第２支持部材３ｂの棟側の設置片部３６に形成された複数の挿通孔４０の各々には、釘又はねじからなる固着具７が挿通されている。固着具７は、軒側屋根板２ａの重なり部２０に予め形成された固着具用孔２４と、軒側屋根板２ａの裏側に配置された断熱材５とを通して屋根下地１に打入されている。これにより、第２支持部材３ｂ及び軒側屋根板２ａは、屋根下地１に対して固定されている。 As shown in FIG. 3B, a fixing tool 7 made of a nail or a screw is inserted into each of the plurality of insertion holes 40 formed in the installation piece portion 36 on the ridge side of the second support member 3b. The fixing tool 7 is driven into the roof base 1 through a fixing tool hole 24 previously formed in the overlapping portion 20 of the eaves side roof plate 2a and a heat insulating material 5 arranged on the back side of the eaves side roof plate 2a. There is. As a result, the second support member 3b and the eaves-side roof plate 2a are fixed to the roof base 1.

第２支持部材３ｂの挿通孔４０は、軒側屋根板２ａの固着具用孔２４よりも軒方向の寸法が長い孔であることが好ましい。例えば軒側屋根板２ａの固着具用孔２４は、固着具７の軸部と略同じ径の円孔であり、第２支持部材３ｂの挿通孔４０は、軒方向に延びた長孔である。この場合、作業者が固着具７を用いて第２支持部材３ｂを屋根下地１に固定するにあたって、軒側屋根板２ａの固着具用孔２４と、軒側屋根板２ａに載置された第２支持部材３ｂの挿通孔４０との位置合わせを行う場合に、挿通孔４０よりも大きな固着具用孔２４を通して挿通孔４０を視認し易くなる。このため、作業者は前述の位置合わせを容易に行うことができる。 The insertion hole 40 of the second support member 3b is preferably a hole having a longer dimension in the eaves direction than the fixing tool hole 24 of the eaves side roof plate 2a. For example, the fixing tool hole 24 of the roof plate 2a on the eave side is a circular hole having substantially the same diameter as the shaft portion of the fixing tool 7, and the insertion hole 40 of the second support member 3b is a long hole extending in the eaves direction. .. In this case, when the operator uses the fixing tool 7 to fix the second support member 3b to the roof base 1, the fixing tool hole 24 of the eaves side roof plate 2a and the second support member 3b placed on the eaves side roof plate 2a. 2 When the support member 3b is aligned with the insertion hole 40, the insertion hole 40 can be easily visually recognized through the fixing tool hole 24 larger than the insertion hole 40. Therefore, the operator can easily perform the above-mentioned alignment.

第２支持部材３ｂの支持片部３９は、棟側屋根板２ｂの裏面に沿っている。棟側屋根板２ｂの軒側端部２２は、第２支持部材３ｂの支持片部３９に載置されることで、軒側屋根板２ａの表面から離れた位置で支持されている。 The support piece portion 39 of the second support member 3b is along the back surface of the ridge side roof plate 2b. The eaves side end portion 22 of the ridge side roof plate 2b is supported at a position away from the surface of the eaves side roof plate 2a by being placed on the support piece portion 39 of the second support member 3b.

本実施形態の第２支持部材３ｂは、図１に示すように、棟側屋根板２ｂを軒端屋根板２ｃと平行になるように支持している。 As shown in FIG. 1, the second support member 3b of the present embodiment supports the ridge-side roof plate 2b so as to be parallel to the eaves edge roof plate 2c.

図３Ｂに示すように、第２支持部材３ｂの立ち上がり片部４１は、棟側屋根板２ｂ及び隙間８の軒側に位置し、棟側屋根板２ｂの軒側端部２２及び隙間８を軒側からカバーしている。第２支持部材３ｂに形成された差込溝４３には、棟側屋根板２ｂの軒側端部２２が差し込まれている。 As shown in FIG. 3B, the rising piece 41 of the second support member 3b is located on the eaves side of the ridge side roof plate 2b and the gap 8, and eaves the eaves side end 22 and the gap 8 of the ridge side roof plate 2b. Covering from the side. The eaves-side end 22 of the ridge-side roof plate 2b is inserted into the insertion groove 43 formed in the second support member 3b.

第２支持部材３ｂの押え片部４２は、棟側屋根板２ｂの軒側端部２２の表面に沿い、棟側屋根板２ｂの軒側端部２２を表側から押える。 The holding piece portion 42 of the second support member 3b presses the eaves side end portion 22 of the ridge side roof plate 2b from the front side along the surface of the eaves side end portion 22 of the ridge side roof plate 2b.

（第２断熱材）
図１に示すように、棟側屋根板２ｂ（軒端屋根板２ｃを除く屋根板２）は、第２断熱材５ｂを介して軒側屋根板２ａ上に設置されており、これにより屋根における棟側屋根板２ｂが設置された部分の断熱性が高くなっている。また、第２断熱材５ｂはクッション性を有するため、屋根板２の施工時や改修時において作業者により棟側屋根板２ｂが踏まれる等して、棟側屋根板２ｂや軒側屋根板２ａが割れることが抑制される。 (Second heat insulating material)
As shown in FIG. 1, the ridge-side roof plate 2b (roof plate 2 excluding the eave-end roof plate 2c) is installed on the eave-side roof plate 2a via the second heat insulating material 5b, whereby the ridge on the roof is installed. The heat insulating property of the portion where the side roof plate 2b is installed is high. Further, since the second heat insulating material 5b has a cushioning property, the ridge-side roof plate 2b and the eave-side roof plate 2a may be stepped on by a worker during construction or repair of the roof plate 2. Is suppressed from cracking.

第２断熱材５ｂは、軒方向に延びた長尺状に形成されている。第２断熱材５ｂの軒方向の幅は、棟側屋根板２ｂの軒方向の幅と同じであってもよい。また、第２断熱材５ｂの軒方向の幅は、棟側屋根板２ｂの軒方向の幅と比較して、長くてもよいし、短くてもよい。 The second heat insulating material 5b is formed in a long shape extending in the eaves direction. The width of the second heat insulating material 5b in the eaves direction may be the same as the width of the ridge-side roof plate 2b in the eaves direction. Further, the width of the second heat insulating material 5b in the eaves direction may be longer or shorter than the width of the ridge-side roof plate 2b in the eaves direction.

図１に示すように、本実施形態の第２断熱材５ｂは、軒棟方向に隣り合う軒側屋根板２ａと棟側屋根板２ｂとの重なり部分に挟まれた第１部分５１と、第１部分５１とは別に第１部分５１に隣接して配置され、第１部分５１の表側の建築板（棟側屋根板２ｂ）と屋根下地１との間に配置される第２部分５２とを備えている。 As shown in FIG. 1, the second heat insulating material 5b of the present embodiment includes the first portion 51 sandwiched between the overlapping portions of the eave-side roof plate 2a and the ridge-side roof plate 2b adjacent to each other in the eaves-building direction, and the first portion 51. A second portion 52, which is arranged adjacent to the first portion 51 separately from the first portion 51 and is arranged between the building plate (ridge side roof plate 2b) on the front side of the first portion 51 and the roof base 1. I have.

第１部分５１は、軒方向と直交する断面の形状が、軒側屋根板２ａの表面に沿って延びた矩形状である。第１部分５１の裏面は、軒側屋根板２ａの表面に沿い、第１部分５１の表面は、棟側屋根板２ｂの裏面に沿っている。第１部分５１の軒側端面は、第２支持部材３ｂの立上片部３８に沿っている。第１部分５１の棟側端は、軒側屋根板２ａの棟側端と軒棟方向において同位置にあり、第１部分５１の棟側端面は、軒側屋根板２ａの棟側端面と面一になるように配置されている。 The first portion 51 has a rectangular shape having a cross section orthogonal to the eaves direction extending along the surface of the eaves-side roof plate 2a. The back surface of the first portion 51 is along the front surface of the eaves side roof plate 2a, and the front surface of the first portion 51 is along the back surface of the ridge side roof plate 2b. The eaves-side end surface of the first portion 51 is along the rising piece portion 38 of the second support member 3b. The ridge-side end of the first part 51 is at the same position as the ridge-side end of the eave-side roof plate 2a in the ridge-side direction, and the ridge-side end surface of the first part 51 is the ridge-side end surface of the eave-side roof plate 2a. Arranged to be one.

第１部分とは別部材である第２部分５２は、軒方向と直交する断面の形状が、直角三角形状である。第２部分５２の裏面は、屋根下地１の表面に沿っている。第２部分５２の軒側端面は、軒側屋根板２ａの棟側端面及び第１部分５１の棟側端面に沿っている。第２部分５２の表面は、棟側屋根板２ｂの裏面に沿っている。 The second portion 52, which is a separate member from the first portion, has a right-angled triangular shape in cross section orthogonal to the eaves direction. The back surface of the second portion 52 is along the surface of the roof base 1. The eaves-side end surface of the second portion 52 is along the ridge-side end surface of the eave-side roof plate 2a and the ridge-side end surface of the first portion 51. The surface of the second portion 52 is along the back surface of the ridge side roof plate 2b.

第１部分５１の棟側端面と第２部分５２の軒側端面とは接しており、軒方向に見て、第１部分５１及び第２部分５２は、軒側屋根板２ａ、支持部材３、棟側屋根板２ｂ及び屋根下地１で囲まれた領域の全体に亘っている。 The ridge-side end surface of the first portion 51 and the eave-side end surface of the second portion 52 are in contact with each other, and when viewed in the eaves direction, the first portion 51 and the second portion 52 are the eave-side roof plate 2a, the support member 3, and the like. It covers the entire area surrounded by the ridge-side roof plate 2b and the roof base 1.

本実施形態では、第１部分５１と第２部分５２とが別部材であるので、第１部分５１及び第２部分５２のそれぞれをシンプルな形状にすることができる。 In the present embodiment, since the first portion 51 and the second portion 52 are separate members, each of the first portion 51 and the second portion 52 can be made into a simple shape.

また、本実施形態の第２断熱材５ｂにあっては、棟側屋根板２ｂの軒棟方向幅が異なる場合、第２部分５２として軒棟方向幅が同じ共通の第２部分５２を用い、かつ第１部分５１として棟側屋根板２ｂの軒棟方向幅に応じたサイズの第１部分５１を用いることで、棟側屋根板２ｂの裏側の略全体を断熱することができる。 Further, in the second heat insulating material 5b of the present embodiment, when the width of the roof plate 2b on the ridge side in the eaves direction is different, the common second part 52 having the same width in the direction of the eaves is used as the second part 52. Moreover, by using the first portion 51 having a size corresponding to the width of the ridge-side roof plate 2b in the eaves direction as the first portion 51, it is possible to insulate substantially the entire back side of the ridge-side roof plate 2b.

（排水構造）
ところで、本実施形態の建築板の施工構造においては、雨水が、屋根板２の軒側端部２２と、当該屋根板２を支持する支持部材３の押え片部４２との間から、当該支持部材３の立ち上がり部３４と支持部３３との間に入り込む可能性がある。このため、本実施形態の各支持部材３には、図４Ｃに示すように、軒側の設置片部３６から立ち上がる立ち上がり片部４１の下端部に、立ち上がり部３４と支持部３３との間に入り込んだ雨水を排出するための水抜き孔４５が形成されている。 (Drainage structure)
By the way, in the construction structure of the building board of the present embodiment, rainwater is supported from between the eaves side end portion 22 of the roof plate 2 and the holding piece portion 42 of the support member 3 that supports the roof plate 2. There is a possibility that the member 3 may enter between the rising portion 34 and the supporting portion 33. Therefore, in each support member 3 of the present embodiment, as shown in FIG. 4C, between the rising portion 34 and the supporting portion 33, at the lower end portion of the rising piece portion 41 rising from the installation piece portion 36 on the eaves side. A drain hole 45 for draining the invading rainwater is formed.

本実施形態では、図４Ａに示すように、立ち上がり片部４１の下端部において軒方向の両端部を除いた部分に、棟側に凹んだ凹部４６が形成されている。凹部４６の奥部４７は、図４Ｄに示すように、下端に近い部分ほど棟側に位置するように傾斜した板状に形成されている。本実施形態では、奥部４７に、軒方向に並んだ複数の水抜き孔４５が形成されている。 In the present embodiment, as shown in FIG. 4A, a recess 46 recessed on the ridge side is formed at the lower end portion of the rising piece 41 excluding both ends in the eaves direction. As shown in FIG. 4D, the inner portion 47 of the recess 46 is formed in a plate shape that is inclined so that the portion closer to the lower end is located on the ridge side. In the present embodiment, a plurality of drain holes 45 arranged in the eaves direction are formed in the inner portion 47.

立ち上がり部３４と支持部３３との間に入り込んだ雨水は、水抜き孔４５から立ち上がり部３４の軒側に排出される。ここで、第２支持部材３ｂが支持する棟側屋根板２ｂの軒側には、図２Ａ及び図２Ｂに示すように、下段の複数の軒側屋根板２ａが軒方向に突付けて施工されているが、第２支持部材３ｂには、水抜き孔４５が軒方向において突付け部分２５からずれた位置に形成されている。このため、水抜き孔４５から排出された雨水は、突付け部分２５に至り難い。従って、水抜き孔４５から排出された雨水が、突付け部分２５から断熱材５や屋根下地１に浸入するといった事態が生じ難い。 The rainwater that has entered between the rising portion 34 and the supporting portion 33 is discharged from the drain hole 45 to the eaves side of the rising portion 34. Here, on the eaves side of the ridge-side roof plate 2b supported by the second support member 3b, as shown in FIGS. However, in the second support member 3b, a drain hole 45 is formed at a position deviated from the abutting portion 25 in the eaves direction. Therefore, the rainwater discharged from the drain hole 45 is unlikely to reach the abutting portion 25. Therefore, it is unlikely that the rainwater discharged from the drain hole 45 will infiltrate the heat insulating material 5 or the roof base 1 from the abutting portion 25.

また、立ち上がり部３４と支持部３３との間に入り込んだ、軒側の設置片部３５上の雨水は、水抜き孔４５から吹き込んだ風により棟側に流れる可能性があるが、本実施形態の支持部材３は、図３Ａ及び図３Ｂに示すように、立ち上がり部３４の棟側に、支持部３３の軒側の立上片部３７が位置するので、前記吹き込みにより軒側の設置片部３５上の雨水が棟側に向かって流れたとしても、この雨水は立上片部３７で堰き止められる。このため、設置片部３５上の雨水が、棟側の設置片部３６の挿通孔４０に至り、当該挿通孔４０及び屋根板２の固着具用孔２４を通って断熱材５や屋根下地１に浸入するといった事態が生じ難い。 Further, the rainwater on the installation piece 35 on the eave side that has entered between the rising portion 34 and the support portion 33 may flow to the ridge side due to the wind blown from the drain hole 45. As shown in FIGS. 3A and 3B, since the rising piece 37 on the eave side of the support 33 is located on the ridge side of the rising portion 34, the support member 3 is installed on the eave side by the blowing. Even if the rainwater on the 35 flows toward the ridge side, the rainwater is blocked by the rising piece 37. Therefore, rainwater on installation piece 35 reaches the insertion hole 40 of the installation piece 3 6 wing side, the heat insulating material 5 and the roof bed through the fastener holes 24 of the through hole 40 and the roof plate 2 It is unlikely that a situation such as infiltration into 1 will occur.

（施工）
複数の屋根板２の施工は、例えば以下のように行われる。まず、作業者は、複数の第１支持部材３ａを施工する。この際、作業者は、第１支持部材３ａを屋根下地１上に載置し、この後、複数の固着具６を第１支持部材３ａの設置片部３６の表側から複数の挿通孔４０を通して屋根下地１に打入する。これにより、第１支持部材３ａは屋根下地１に固定される。 (Construction)
The construction of the plurality of roof plates 2 is performed as follows, for example. First, the worker constructs a plurality of first support members 3a. At this time, the operator places the first support member 3a on the roof base 1, and then passes the plurality of fasteners 6 from the front side of the installation piece portion 36 of the first support member 3a through the plurality of insertion holes 40. Drive into the roof base 1. As a result, the first support member 3a is fixed to the roof base 1.

次に作業者は、複数の第１断熱材５ａを施工する。この際、作業者は、第１断熱材５ａの軒側端面を第１支持部材３ａの棟側の立上片部３８に沿わせて、第１断熱材５ａを屋根下地１に載置する。 Next, the worker constructs a plurality of first heat insulating materials 5a. At this time, the operator places the first heat insulating material 5a on the roof base 1 with the eaves-side end surface of the first heat insulating material 5a along the rising piece portion 38 on the ridge side of the first support member 3a.

次に作業者は、複数の軒端屋根板２ｃを施工する。この際、作業者は、軒端屋根板２ｃの軒側端部２２を第１支持部材３ａの差込溝４３に棟側から差し込み、軒端屋根板２ｃを第１支持部材３ａの支持片部３９及び第１断熱材５ａに載置する。 Next, the worker constructs a plurality of eaves edge roof plates 2c. At this time, the operator inserts the eaves side end portion 22 of the eaves edge roof plate 2c into the insertion groove 43 of the first support member 3a from the ridge side, and inserts the eaves edge roof plate 2c into the support piece portion 39 of the first support member 3a and the support piece portion 39. It is placed on the first heat insulating material 5a.

次に作業者は、複数の第２支持部材３ｂを施工する。この際、作業者は、軒端屋根板２ｃの重なり部２０に第２支持部材３ｂを載置し、この後、複数の固着具７を、当該第２支持部材３ｂの設置片部３６の表側から、複数の挿通孔４０、複数の固着具用孔２４及び第１断熱材５ａを通して屋根下地１に打入する。これにより、第２支持部材３ｂ及び軒側屋根板２ａは、屋根下地１に固定される。 Next, the worker constructs a plurality of second support members 3b. At this time, the operator places the second support member 3b on the overlapping portion 20 of the eaves edge roof plate 2c, and then attaches the plurality of fasteners 7 from the front side of the installation piece portion 36 of the second support member 3b. , A plurality of insertion holes 40, a plurality of fixing tool holes 24, and a first heat insulating material 5a are driven into the roof base 1. As a result, the second support member 3b and the eaves-side roof plate 2a are fixed to the roof base 1.

次に作業者は、複数の第２断熱材５ｂを施工する。この際、作業者は、図１に示す第２断熱材５ｂの第１部分５１の軒側端面を第２支持部材３ｂの棟側の立上片部３８に沿わせて、第１部分５１を軒端屋根板２ｃの重なり部２０に載置すると共に、第２部分５２の軒側端面を第１部分５１の棟側端面に沿わせて、第２部分５２を屋根下地１に載置する。 Next, the worker constructs a plurality of second heat insulating materials 5b. At this time, the operator puts the eaves-side end surface of the first portion 51 of the second heat insulating material 5b shown in FIG. 1 along the rising piece portion 38 on the ridge side of the second support member 3b, and makes the first portion 51. The eaves edge roof plate 2c is placed on the overlapping portion 20, and the eaves side end surface of the second portion 52 is placed along the ridge side end surface of the first portion 51, and the second portion 52 is placed on the roof base 1.

次に作業者は、軒端屋根板２ｃの一段棟側の複数の屋根板２を施工する。この際、作業者は、図３Ｂに示すように軒端屋根板２ｃの棟側に隣接する屋根板２の軒側端部２２を第２支持部材３ｂの差込溝４３に棟側から差し込み、この屋根板２を第２支持部材３ｂの支持片部３９、第２断熱材５ｂの第１部分５１及び第２部分５２に載置する。 Next, the worker constructs a plurality of roof plates 2 on the one-stage building side of the eaves edge roof plate 2c. At this time, as shown in FIG. 3B, the worker inserts the eaves side end portion 22 of the roof plate 2 adjacent to the ridge side of the eaves edge roof plate 2c into the insertion groove 43 of the second support member 3b from the ridge side. The roof plate 2 is placed on the support piece portion 39 of the second support member 3b, the first portion 51 and the second portion 52 of the second heat insulating material 5b.

そして、以後、作業者は、上述と同様に、第２支持部材３ｂの施工、第２断熱材５ｂの施工及び屋根板２の施工を順に繰り返し行い、これにより屋根板２を軒先から棟に亘るまで葺設する。 After that, the worker repeatedly performs the construction of the second support member 3b, the construction of the second heat insulating material 5b, and the construction of the roof plate 2 in the same manner as described above, whereby the roof plate 2 extends from the eaves to the ridge. To be installed.

（補足）
以上説明した実施形態は、適宜設計変更可能である。例えば、屋根板２及び支持部材３の各々の材質は、適宜変更可能である。また、支持部材３は軒方向に短尺のピース材であってもよい。また、支持部材３の押え片部４２や水抜き孔４５は省略可能である。 (supplement)
The embodiment described above can be appropriately redesigned. For example, the materials of the roof plate 2 and the support member 3 can be changed as appropriate. Further, the support member 3 may be a piece material short in the eaves direction. Further, the holding piece portion 42 and the drain hole 45 of the support member 3 can be omitted.

また、本実施形態の支持部材３は屋根板２を持ち上げて支持する支持部３３を備えているが、支持部材３は支持部３３を備えていなくてもよく、また、支持部材３は省略してもよい。この場合、屋根板２は支持具等の他の支持具によって支持される。 Further, although the support member 3 of the present embodiment includes a support portion 33 that lifts and supports the roof plate 2, the support member 3 does not have to include the support portion 33, and the support member 3 is omitted. You may. In this case, the roof plate 2 is supported by another support such as a support.

また、第２断熱材５ｂは第１部分５１と第２部分５２とが一体に形成されてもよい。また、第１断熱材５ａは複数の断熱材５で構成されてもよい。 Further, in the second heat insulating material 5b, the first portion 51 and the second portion 52 may be integrally formed. Further, the first heat insulating material 5a may be composed of a plurality of heat insulating materials 5.

また、本実施形態の建築板は、屋根板２であるが、これに限定されず、例えば建物の外壁を構成する壁板であってもよい。また、建築板は外装材に限られず、建物の内壁を構成する壁板等であってもよい。 Further, the building board of the present embodiment is not limited to the roof board 2, but may be, for example, a wall board constituting the outer wall of the building. Further, the building board is not limited to the exterior material, and may be a wall board or the like constituting the inner wall of the building.

（効果）
以上説明した実施形態の建築板の施工構造は、複数の建築板が階段状に重ねられて構造物下地に施工された建築板の施工構造であって、以下に示す特徴を有する。建築板の施工構造は、建築板の裏側に配置された断熱材５を備える。以下、この特徴を有する建築板の施工構造を第１の態様の建築板の施工構造という。 (effect)
The construction structure of the building board of the embodiment described above is a construction structure of the building board in which a plurality of building boards are stacked in a staircase pattern and constructed on the base of the structure, and has the following features. The construction structure of the building board includes a heat insulating material 5 arranged on the back side of the building board. Hereinafter, the construction structure of the building board having this feature is referred to as the construction structure of the building board of the first aspect.

第１の態様の建築板の施工構造にあっては、前記建築板の裏側に配置された断熱材５により、断熱性が高まる。また、断熱材５のクッション性によって、建築板の施工時や改修時において作業者により建築板が踏まれる等しても、建築板が割れ難くなる。 In the construction structure of the building board of the first aspect, the heat insulating material 5 arranged on the back side of the building board enhances the heat insulating property. Further, due to the cushioning property of the heat insulating material 5, even if the building board is stepped on by an operator at the time of construction or repair of the building board, the building board is less likely to be cracked.

また、前記実施形態の建築板の施工構造は、第１の態様の建築板の施工構造が有する特徴に加えて、以下に示す付加的な特徴を有する。断熱材５は、階段方向に隣り合う建築板の重なり部分に挟まれた第１部分５１と、第１部分５１とは別に第１部分５１に隣接して配置され、第１部分５１の表側の建築板と構造物下地との間に配置される第２部分５２と、を有する。以下、この建築板の施工構造を第２の態様の建築板の施工構造という。 Moreover, the construction structure of the building board of the said embodiment has the following additional features in addition to the features of the construction board of the building board of the first aspect. The heat insulating material 5 is arranged adjacent to the first portion 51, which is sandwiched between the overlapping portions of the building boards adjacent to each other in the staircase direction, and the first portion 51, separately from the first portion 51, and is arranged on the front side of the first portion 51. It has a second portion 52, which is arranged between the building board and the base of the structure. Hereinafter, the construction structure of the building board will be referred to as the construction structure of the building board of the second aspect.

第２の態様の建築板の施工構造にあっては、第１部分５１により、階段方向に隣り合う建築板の重なり部分の間を断熱すると共に、第２部分により、第１部分５１の表側の建築板と構造物下地との間を断熱することができる。また、断熱材５の第１部分５１と第２部分５２とを別部材とすることで、第１部分５１と第２部分５２とのそれぞれをシンプルな形状にして容易に製造することができる。また、第１部分５１として利用される断熱材の階段方向における長さを、第１部分５１の表側の建築板において第１部分５１の裏側の建築板を覆う部分の長さに応じて変更することで、第２部分５２として利用される断熱材として共通のものを利用できる。 In the construction structure of the building board of the second aspect, the first part 51 is used to insulate between the overlapping parts of the building boards adjacent to each other in the staircase direction, and the second part is used to insulate the front side of the first part 51. It is possible to insulate between the building board and the base of the structure. Further, by using the first portion 51 and the second portion 52 of the heat insulating material 5 as separate members, each of the first portion 51 and the second portion 52 can be easily manufactured in a simple shape. Further, the length of the heat insulating material used as the first portion 51 in the staircase direction is changed according to the length of the portion of the building plate on the front side of the first portion 51 that covers the building plate on the back side of the first portion 51. Therefore, a common heat insulating material can be used as the second portion 52.

また、前記実施形態の建築板の施工構造は、第１又は第２の態様の建築板の施工構造が有する特徴に加えて、以下に示す付加的な特徴を有する。支持部材３は、断熱材５の裏側に配置された建築板上に設置されて断熱材５の表側の建築板において断熱材５の裏側に配置された建築板と重なる端部２２を裏側から持ち上げて支持する支持部３３と、断熱材５及び断熱材５の表側に配置された建築板の端部２２と対向するように支持部３３から立ち上がる立ち上がり部３４とを備える。以下、この建築板の施工構造を第３の態様の建築板の施工構造という。 Further, the construction structure of the building board of the above embodiment has the following additional features in addition to the features of the construction structure of the building board of the first or second aspect. The support member 3 is installed on a building board arranged on the back side of the heat insulating material 5, and lifts an end portion 22 overlapping the building board arranged on the back side of the heat insulating material 5 in the building board on the front side of the heat insulating material 5 from the back side. It is provided with a support portion 33 that supports the heat insulating material 5 and a rising portion 34 that rises from the support portion 33 so as to face the end portion 22 of the heat insulating material 5 and the building board arranged on the front side of the heat insulating material 5. Hereinafter, the construction structure of the building board will be referred to as the construction structure of the building board of the third aspect.

第３の態様の建築板の施工構造にあっては、支持部材３の支持部３３により断熱材５の表側の建築板の端部２２が持ち上げられて支持される。このため、薄く軽量な建築板を用いながら、建築板を厚く見せて、重厚感を得ることができる。また、立ち上がり部３４によって断熱材５の表側の建築板の移動を規制することができる。 In the construction structure of the building board of the third aspect, the end portion 22 of the building board on the front side of the heat insulating material 5 is lifted and supported by the support portion 33 of the support member 3. Therefore, while using a thin and lightweight building board, the building board can be made to look thick and a profound feeling can be obtained. Further, the rising portion 34 can restrict the movement of the building board on the front side of the heat insulating material 5.

また、前記実施形態の建築板の施工構造は、第３の態様の建築板の施工構造が有する特徴に加えて、以下に示す付加的な特徴を有する。立ち上がり部３４に、水抜き孔４５が形成される。以下、この建築板の施工構造を第４の態様の建築板の施工構造という。 Further, the construction structure of the building board of the above-described embodiment has the following additional features in addition to the features of the construction board of the building board of the third aspect. A drain hole 45 is formed in the rising portion 34. Hereinafter, the construction structure of the building board will be referred to as the construction structure of the building board of the fourth aspect.

第４の態様の建築板の施工構造にあっては、断熱材５の表側の建築板と立ち上がり部３４との間から、立ち上がり部３４と支持部３３との間に入り込んだ雨水を水抜き孔４５から排出できる。また、立ち上がり部３４と支持部３３との間に入り込んだ雨水が、水抜き孔４５から吹き込んだ風により断熱材５側に流れることを支持部３３により抑制することができる。 In the construction structure of the building board of the fourth aspect, the rainwater that has entered between the rising portion 34 and the supporting portion 33 is drained from between the building board on the front side of the heat insulating material 5 and the rising portion 34. It can be discharged from 45. Further, the support portion 33 can suppress the rainwater that has entered between the rising portion 34 and the support portion 33 from flowing to the heat insulating material 5 side due to the wind blown from the drain hole 45.

また、前記実施形態の建築板の施工構造は、第３又は第４の態様の建築板の施工構造が有する特徴に加えて、以下に示す付加的な特徴を有する。立ち上がり部３４と支持部３３との間に端部２２が差込まれている。以下、この特徴を有する建築板の施工構造を第５の態様の建築板の施工構造という。 Further, the construction structure of the building board of the above-described embodiment has the following additional features in addition to the features of the construction structure of the building board of the third or fourth aspect. The end portion 22 is inserted between the rising portion 34 and the supporting portion 33. Hereinafter, the construction structure of the building board having this feature is referred to as the construction structure of the building board of the fifth aspect.

第５の態様の建築板の施工構造にあっては、立ち上がり部３４と支持部３３との間に建築板の端部２２を差し込むことで、建築板を施工することができる。 In the construction structure of the building board of the fifth aspect, the building board can be constructed by inserting the end portion 22 of the building board between the rising portion 34 and the support portion 33.

また、前記実施形態の建築板の施工構造は、第３〜第５のいずれかの態様の建築板の施工構造が有する特徴に加えて、以下に示す付加的な特徴を有する。支持部材３は、階段方向と直交する方向に長尺状に延びる。立ち上がり部３４は、前記直交する方向に並ぶ複数の建築板の各端部２２を表側から押さえる。以下、この建築板の施工構造を第６の態様の建築板の施工構造という。 Moreover, the construction structure of the building board of the said embodiment has the following additional features in addition to the features of the construction structure of the building board of any one of the third to fifth aspects. The support member 3 extends in a long shape in a direction orthogonal to the staircase direction. The rising portion 34 presses each end portion 22 of the plurality of building boards arranged in the orthogonal direction from the front side. Hereinafter, the construction structure of the building board will be referred to as the construction structure of the building board of the sixth aspect.

第６の態様の建築板の施工構造にあっては、支持部材３により、前記直交する方向に並ぶ複数の建築板における下段の建築板と重なる端部２２を表側から押えて固定することができる。 In the construction structure of the building board of the sixth aspect, the support member 3 can press and fix the end portion 22 overlapping the lower building board in the plurality of building boards arranged in the orthogonal direction from the front side. ..

１屋根下地（構造物下地）
２屋根板（建築板）
２２屋根板の軒側端部
２ａ軒側屋根板
２ｂ棟側屋根板
３支持部材
３３支持部
３４立ち上がり部
４５水抜き孔
５断熱材
５１第１部分
５２第２部分 1 Roof base (structure base)
2 Roof board (building board)
22 Eaves side end of roof board 2a Eaves side roof board 2b Building side roof board 3 Support member 33 Support part 34 Rise part 45 Drain hole 5 Insulation material 51 1st part 52 2nd part

Claims

It is a construction structure of a building board in which multiple building boards are stacked in a staircase pattern and constructed on the base of the structure.
With a heat insulating material placed on the back side of the building board,
The heat insulating material is
The first part sandwiched between the overlapping parts of the building boards adjacent to each other in the direction of the stairs,
From the first portion to contact said first portion a separate member, is disposed between the building board of the front of said first portion and said structure underlying the back surface is a surface of the structure underlying With a second part along ,
The construction structure of the building board, characterized in that the first part and the second part cover the entire area surrounded by the adjacent building board and the structure base.

In the construction structure of the building board according to claim 1,
The second part is a construction structure of a building board, which is characterized in that it is placed on the base of the structure.

In the construction structure of the building board according to claim 1 or 2.
A support portion that is installed on the building board arranged on the back side of the heat insulating material and lifts and supports an end portion of the building board on the front side of the heat insulating material that overlaps with the building board arranged on the back side of the heat insulating material. ,
The building is characterized by comprising a support member including the heat insulating material and a rising portion rising from the support portion so as to face the end portion of the building board arranged on the front side of the heat insulating material. Construction structure of the board .