JP7173722B2 - roof structure - Google Patents

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JP7173722B2
JP7173722B2 JP2017068984A JP2017068984A JP7173722B2 JP 7173722 B2 JP7173722 B2 JP 7173722B2 JP 2017068984 A JP2017068984 A JP 2017068984A JP 2017068984 A JP2017068984 A JP 2017068984A JP 7173722 B2 JP7173722 B2 JP 7173722B2
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roof
decorative
crosspieces
crosspiece
fixed
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JP2018168660A (en
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泰久 東堤
真人 中村
健文 小池
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KMEW Co Ltd
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Kubota Matsushitadenko Exterior Works Ltd
KMEW Co Ltd
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Description

本発明は、屋根構造に関する。詳しくは、屋根下地の上に複数の屋根材を配置した屋根構造に関する。 The present invention relates to roof construction. Specifically, it relates to a roof structure in which a plurality of roof materials are arranged on a roof foundation.

従来の屋根構造として、屋根下地の上に複数の屋根材を配置したものが提案されている。このような屋根構造は、通常、屋根下地の表面にはアスファルトルーフィング等の下葺材が設置され、その上に、複数の屋根材が、隣接する端部同士が上下に重ね合わせて配置されている（例えば、特許文献１参照）。 As a conventional roof structure, there has been proposed a structure in which a plurality of roof materials are arranged on a roof substrate. In such a roof structure, an underlaying material such as asphalt roofing is usually installed on the surface of the roof substrate, and a plurality of roofing materials are placed on top of that with their adjacent ends overlapping each other. (See Patent Document 1, for example).

特開２０１５－１２１０８１号公報JP 2015-121081 A

ところで、屋根の防水性を左右する一要因として、屋根勾配がある。屋根勾配が比較的大きい場合、雨水は屋根面に沿ってスムーズに軒側に流れるため、雨水が屋根に滞留しにくく、屋根の防水性に寄与する。一方、屋根勾配が比較的小さい緩勾配の屋根の場合、雨水が屋根に滞留しやすく、屋根下地に到達する可能性が高まり、防水性を損なう虞がある。したがって、上記のような屋根構造においては、或る程度の屋根勾配を確保する必要性がある。しかしながら、屋根勾配を確保しようとすると、屋根構造の自由度が制限される。 By the way, one factor that affects the waterproofness of a roof is the slope of the roof. When the roof slope is relatively large, rainwater smoothly flows along the roof surface to the eaves side, so rainwater is less likely to stay on the roof, contributing to the waterproofness of the roof. On the other hand, in the case of a roof with a relatively small roof slope, rainwater tends to stay on the roof, increasing the possibility of reaching the roof foundation, which may impair waterproofing. Therefore, in the roof structure as described above, it is necessary to secure a certain degree of roof slope. However, when trying to secure the roof slope, the flexibility of the roof structure is restricted.

本発明は上記の点に鑑みてなされたものであり、緩勾配の屋根面であっても防水性を向上させることができる屋根構造を提供することを目的とする。 SUMMARY OF THE INVENTION It is an object of the present invention to provide a roof structure capable of improving waterproofness even if the roof surface has a gentle slope.

本発明に係る屋根構造は、
表面に防水処理が施された屋根下地と、
前記屋根下地上に該屋根下地の勾配方向と直交する直交方向に互いに間隔をあけて複数配置され、それぞれ前記勾配方向に延びるように設けられた桟と、
前記複数の桟上に載置固定された複数の化粧板と、を備え、
前記化粧板は、四辺の周縁が隣り合う他の前記化粧板の周縁に突付けられて施工され、前記桟に接着により直接固定されている
ことを特徴とする。 The roof structure according to the present invention includes:
The roof base with waterproof treatment on the surface,
a plurality of crosspieces arranged on the roof substrate at intervals in an orthogonal direction perpendicular to the slope direction of the roof substrate and each provided to extend in the slope direction;
and a plurality of decorative boards mounted and fixed on the plurality of crosspieces,
The decorative board is constructed such that the peripheral edges of four sides of the decorative board are abutted against the peripheral edges of the adjacent decorative boards, and are directly fixed to the crosspieces by adhesion.

本発明に係る屋根構造は、 The roof structure according to the present invention includes:
表面に防水処理が施された屋根下地と、 The roof base with waterproof treatment on the surface,
前記屋根下地上に該屋根下地の勾配方向と直交する直交方向に互いに間隔をあけて複数配置され、それぞれ前記勾配方向に延びるように設けられた桟と、 a plurality of crosspieces arranged on the roof substrate at intervals in an orthogonal direction perpendicular to the slope direction of the roof substrate and each provided to extend in the slope direction;
前記複数の桟上に載置固定された複数の化粧板と、を備え、 and a plurality of decorative boards mounted and fixed on the plurality of crosspieces,
前記化粧板は、四辺の周縁が隣り合う他の前記化粧板の周縁に突付けられて施工され、前記化粧板の突付け箇所が前記桟に位置し、 The decorative board is constructed by abutting the peripheral edges of the four sides against the peripheral edges of the other adjacent decorative boards, and the abutment part of the decorative board is located on the crosspiece,
前記化粧板は、前記桟に接着剤により固定され、 The decorative board is fixed to the crosspiece with an adhesive,
前記接着剤は、前記桟を前記屋根下地に固定している固定具の頭部を覆っている The adhesive covers the heads of fasteners that secure the crosspieces to the roof subfloor.
ことを特徴とする。It is characterized by

本発明では、化粧板を屋根下地上に直接葺く場合に比べて、化粧板と屋根下地の間に桟の高さ分の排水部を形成することができ、緩勾配の屋根面であっても防水性を向上させることができる。 In the present invention, compared to the case where the decorative board is directly laid on the roof substrate, a drainage part corresponding to the height of the crosspiece can be formed between the decorative board and the roof foundation, and the roof surface has a gentle slope. can also improve waterproofness.

図１Ａは、本発明の屋根構造に係る一実施の形態を示し、屋根の勾配方向と直交する方向の断面図である。図１Ｂは、同上の屋根の勾配方向と平行な方向の断面図である。FIG. 1A shows an embodiment of the roof structure of the present invention, and is a cross-sectional view in a direction perpendicular to the slope direction of the roof. FIG. 1B is a sectional view in a direction parallel to the slope direction of the same roof. 図２は、同上の屋根下地を示す一部の斜視図である。FIG. 2 is a partial perspective view showing the roof foundation of the same. 図３は、同上の防水シートの施工方法を示す一部の斜視図である。FIG. 3 is a partial perspective view showing a construction method of the waterproof sheet same as the above. 図４は、同上の桟の施工方法を示す一部の斜視図である。FIG. 4 is a partial perspective view showing a method of constructing the same crosspiece. 図５は、同上の化粧板の施工方法を示す一部の斜視図である。FIG. 5 is a partial perspective view showing the construction method of the same decorative board. 図６は、同上の隣接する化粧板の突付け状態を示す一部の斜視図である。FIG. 6 is a partial perspective view showing a state in which adjacent decorative plates are pressed against each other.

以下、本発明を実施するための形態を説明する。 DETAILED DESCRIPTION OF THE INVENTION Embodiments for carrying out the present invention will be described below.

図１Ａ及び図１Ｂには、本実施形態の屋根構造が示されている。この屋根構造は切妻屋根等であって、屋根下地１と、桟２と、化粧板３とを備えている。 1A and 1B show the roof structure of this embodiment. This roof structure is a gable roof or the like, and includes a roof base 1, a crosspiece 2, and a veneer 3.

屋根下地１は、桟２及び化粧板３を建物に取付けるための基礎となる。屋根下地１には防水処理が施されている。これにより、屋根下地１上に雨水が付着しても屋根下地１の下側（屋内側）に浸入するのを抑制することができる。 The roof base 1 serves as a base for attaching the crosspieces 2 and the decorative board 3 to the building. The roof base 1 is waterproofed. As a result, even if rainwater adheres to the roof substrate 1, it can be suppressed from entering the lower side (indoor side) of the roof substrate 1. - 特許庁

屋根下地１は、木毛や木片を圧縮成型した板材や合板などで形成される野地板１１と、防水シート１２とを備えている。防水シート１２としては、アスファルトルーフィング、ゴムシート、塩化ビニル樹脂シートなどが例示される。防水シート１２は野地板１１上に全面にわたって配置されており、これにより、防水処理が施された屋根下地１が形成される。屋根下地１の上面（本実施形態では防水シート１２の上面）は、傾斜している。すなわち、屋根下地１は勾配を有している。なお、本実施形態は屋根勾配が０．５寸以上２．５寸以下であってもよい。 The roof base 1 is provided with a sheathing board 11 formed of a plate material or plywood obtained by compressing and molding wood wool or wood chips, and a waterproof sheet 12.例文帳に追加Examples of the waterproof sheet 12 include asphalt roofing, a rubber sheet, a vinyl chloride resin sheet, and the like. The waterproof sheet 12 is arranged over the entire surface of the sheathing board 11, thereby forming a waterproof roof base 1. - 特許庁The upper surface of the roof substrate 1 (the upper surface of the waterproof sheet 12 in this embodiment) is inclined. That is, the roof base 1 has a slope. In this embodiment, the roof slope may be 0.5 or more and 2.5 or less.

桟２は、化粧板３を取り付けるための基礎となる。桟２は屋根下地１上に複数設けられている。複数の桟２は、屋根下地１の勾配方向と直交する直交方向Ｘに等間隔に配置されている。隣り合う桟２の間隔Ｌは、一枚の化粧板３の長手方向（直交方向Ｘと同じ）の寸法よりも小さい。本実施形態における間隔Ｌは、化粧板３の長手方向の寸法の１／２の間隔であるが、これに限定されない。また各桟２は屋根下地１の勾配方向Ｙに延びるように長尺に形成されている。桟２としては、防水処理が施された木材や樹脂材が使用可能である。 The crosspiece 2 serves as a base for attaching the decorative board 3 . A plurality of crosspieces 2 are provided on the roof base 1. - 特許庁A plurality of crosspieces 2 are arranged at regular intervals in an orthogonal direction X perpendicular to the slope direction of the roof substrate 1 . The interval L between adjacent crosspieces 2 is smaller than the dimension of one decorative board 3 in the longitudinal direction (the same as the orthogonal direction X). The interval L in this embodiment is half the longitudinal dimension of the decorative plate 3, but is not limited to this. Each crosspiece 2 is formed long so as to extend in the direction Y of the slope of the roof foundation 1 . As the crosspiece 2, waterproofed wood or resin material can be used.

化粧板３は、屋根を化粧するために設けられる。化粧板３は桟２上に複数枚載置されて固定されている。化粧板３としては、薄い矩形板状のセメント瓦が使用可能であるが、これに限定されるものではない。化粧板３の大きさは、例えば、長手方向の寸法が６００～１８００ｍｍ、短手方向の寸法が１００～３００ｍｍ、厚みが２～１０ｍｍとすることができるが、これに限定されるものではない。なお、化粧板３は平面視の形状が略矩形状だけでなく、三角形、六角形等の多角形であっても使用可能である。 The decorative plate 3 is provided to decorate the roof. A plurality of decorative boards 3 are placed and fixed on the crosspiece 2. - 特許庁A thin rectangular plate-shaped cement roof tile can be used as the decorative board 3, but it is not limited to this. The size of the decorative plate 3 is, for example, 600 to 1800 mm in the longitudinal direction, 100 to 300 mm in the lateral direction, and 2 to 10 mm in thickness, but is not limited to these. Note that the decorative plate 3 can be used not only in a substantially rectangular shape in plan view but also in a polygonal shape such as a triangle or a hexagon.

本実施形態の屋根構造は、以下のように施工されて形成される。 The roof structure of this embodiment is constructed and formed as follows.

まず、図２に示すように、野地板１１上に複数枚の防水シート１２を配置し、防水処理が施された屋根下地１を形成する。野地板１１の上面は複数枚の防水シート１２で全面にわたって覆われる。各防水シート１２は野地板１１上に接着により固定される。また隣り合う防水シート１２は端部同士が重ねられて接合されることにより、シームレス化される。 First, as shown in FIG. 2, a plurality of waterproof sheets 12 are arranged on a sheathing board 11 to form a waterproof roof base 1 . The upper surface of the sheathing board 11 is entirely covered with a plurality of waterproof sheets 12. - 特許庁Each waterproof sheet 12 is fixed on the sheathing board 11 by adhesion. Adjacent waterproof sheets 12 are made seamless by overlapping and joining the ends of the waterproof sheets 12 .

図３に示すように、直交方向Ｘで隣接する第一の防水シート１２１と第二の防水シート１２２は、直交方向Ｘにおける防水シート１２１の一方の端部１２５の上に、直交方向Ｘにおける防水シート１２２の一方の端部１２６が重ねられ、両端部１２５、１２６が接着剤や熱融着により接合される。また防水シート１２１、１２２と勾配方向Ｙの上側に隣接する第三の防水シート１２３は、防水シート１２１、１２２の上側端部１２７の上に、防水シート１２３の下側端部１２８が重ねられ、両端部１２７、１２８が接着剤や熱融着により接合される。端部１２５と端部１２６の接合部分は勾配方向Ｙで直線上に並ばないように、複数の防水シート１２は千鳥で配置される。なお、図３において、斜線部分は、防水シート１２の重ねられる部分を示している。 As shown in FIG. 3, the first waterproof sheet 121 and the second waterproof sheet 122 adjacent in the orthogonal direction X are provided on one end 125 of the waterproof sheet 121 in the orthogonal direction X. One end 126 of the sheet 122 is overlapped, and both ends 125 and 126 are joined by adhesive or heat sealing. In addition, the third waterproof sheet 123 adjacent to the waterproof sheets 121 and 122 on the upper side in the gradient direction Y has the lower end 128 of the waterproof sheet 123 overlaid on the upper end 127 of the waterproof sheets 121 and 122, Both ends 127 and 128 are joined by an adhesive or heat-sealing. The plurality of waterproof sheets 12 are arranged in a zigzag manner so that the joints of the ends 125 and 126 are not aligned in a straight line in the direction Y of the gradient. Incidentally, in FIG. 3, the hatched portion indicates the overlapping portion of the waterproof sheet 12. As shown in FIG.

次に、図４に示すように、屋根下地１上に複数の桟２を設ける。複数の桟２は防水シート１２の表面に取り付けられる。各桟２は釘やビスなどの固定具により野地板１１に固定される。該固定具は各桟２の表面から野地板１１まで達するように打ち込まれる。各桟２は勾配方向Ｙに延びるように配置される。また複数の桟２は直交方向Ｘに間隔Ｌ毎に配置される。 Next, as shown in FIG. 4, a plurality of beams 2 are provided on the roof substrate 1 . A plurality of crosspieces 2 are attached to the surface of the waterproof sheet 12 . Each crosspiece 2 is fixed to the sheathing board 11 by fixing tools such as nails and screws. The fixture is driven in so as to reach from the surface of each crosspiece 2 to the sheathing board 11. - 特許庁Each crosspiece 2 is arranged so as to extend in the direction Y of the slope. Further, the plurality of crosspieces 2 are arranged at intervals L in the orthogonal direction X. As shown in FIG.

複数の桟２は上記の如く等間隔で配置されている。例えば、図４では、直交方向Ｘにおいて、四本の桟２１、２２、２３、２４がこの順で紙面左側から並んで配置されているが、隣り合う二つの桟２２、２３の間隔Ｌは、化粧板３の長手方向の寸法の１／２に設定されている。したがって、例えば、最も左側の桟２１と、左から三番目の桟２３と、によって化粧板３の長手方向両端が支持され、左から２番目の桟２２によって当該化粧板３の長手方向中央部が支持される。なお、桟２が等間隔に配置されていなくてもよく、桟２が化粧板３の長手方向両端部とその間の箇所を支持していれば良い。 A plurality of crosspieces 2 are arranged at equal intervals as described above. For example, in FIG. 4, four crosspieces 21, 22, 23, and 24 are arranged in this order from the left side of the drawing in the orthogonal direction X, and the interval L between two adjacent crosspieces 22 and 23 is It is set to 1/2 of the longitudinal dimension of the decorative plate 3 . Therefore, for example, the leftmost crosspiece 21 and the third crosspiece 23 from the left support both longitudinal ends of the decorative board 3, and the second crosspiece 22 from the left supports the central part in the longitudinal direction of the decorative board 3. Supported. The crosspieces 2 do not have to be arranged at equal intervals, and it is sufficient that the crosspieces 2 support both longitudinal ends of the decorative board 3 and a portion therebetween.

次に、図５に示すように、桟２上に複数の化粧板３を配置する。化粧板３は直交方向Ｘと勾配方向Ｙとに複数ずつ並べて配置されるが、直交方向Ｘ及び勾配方向Ｙに隣接する化粧板３は互いに重ならないように突付けて配置される。図１、図５及び図６において、隣り合う化粧板３の突付け箇所を符号Ｔで示す。 Next, as shown in FIG. 5 , a plurality of decorative boards 3 are arranged on the crosspiece 2 . A plurality of the decorative boards 3 are arranged side by side in the orthogonal direction X and the gradient direction Y, and the decorative boards 3 adjacent to each other in the orthogonal direction X and the gradient direction Y are arranged so as to face each other so as not to overlap each other. In FIGS. 1, 5 and 6, reference numeral T indicates the location where adjacent decorative panels 3 are pressed against each other.

例えば、図５では、直交方向Ｘにおいて、三枚の化粧板３１、３２、３３が左側からこの順で並んで配置されているが、中央の化粧板３２の左側の長手方向端部３２１が左側の化粧板３１の右側の長手方向端部３１１と突付けられ、中央の化粧板３２の右側の長手方向端部３２３は右側の化粧板３３の左側の長手方向端部３３２と突付けられている。 For example, in FIG. 5, three decorative plates 31, 32, 33 are arranged in this order from the left side in the orthogonal direction X, but the left longitudinal end 321 of the central decorative plate 32 is located on the left side. and the right longitudinal end 323 of the central decorative plate 32 abuts the left longitudinal end 332 of the right decorative plate 33 . .

また勾配方向Ｙにおいて、三枚の化粧板３４、３２、３５が下側からこの順で並んで配置されているが、中央の化粧板３２の下側の短手方向端部３２４が下側の化粧板３４の上側の短手方向端部３４４と突付けられ、中央の化粧板３２の上側の短手方向端部３２５は上側の化粧板３５の下側の短手方向端部３５５と突付けられている。このように矩形状の各化粧板３の四辺の周縁は、各辺の周縁に隣接する化粧板３に突付けられている。したがって、複数枚の化粧板３で形成された化粧面（屋根面）は、全体に亘ってフラットとなる。そのため、水が化粧面上を軒側に向かって流れ易くなり、滞留し難い。 In addition, in the gradient direction Y, the three decorative plates 34, 32, 35 are arranged in this order from the lower side, and the lower lateral end portion 324 of the central decorative plate 32 is the lower side. The upper lateral end 344 of the decorative plate 34 abuts, and the upper lateral end 325 of the central decorative plate 32 abuts the lower lateral end 355 of the upper decorative plate 35 . It is Thus, the peripheral edges of the four sides of each rectangular decorative plate 3 are abutted against the decorative plate 3 adjacent to the peripheral edge of each side. Therefore, the entire decorative surface (roof surface) formed by the plurality of decorative boards 3 is flat. Therefore, water tends to flow toward the eaves on the decorative surface and is less likely to stay.

一枚の化粧板３は少なくとも三本の桟２に架け渡すようにして配置される。図５では、化粧板３２、３４、３５は紙面左側から右側に順に並ぶ三本の桟２２、２３、２４に架け渡している。具体的には、桟２２，２３，２４は、上記の如く、間隔Ｌで等間隔に配置され、この間隔Ｌが化粧板３の長手方向の寸法の１／２である。そして、化粧板３２の長手方向両端がそれぞれ桟２２，２４上に固定され、さらに、化粧板３２の長手方向中央部裏面が中央の桟２３上に固定されている。当該化粧板３２の上下に位置する化粧板３４，３５も同様に桟２２，２３，２４に固定されている。また、化粧板３２の直交方向Ｘに隣り合う化粧板３１，３３も各長手方向両端が桟２上に固定されて、化粧板３２に突きつけられている。このように、各化粧板３の長手方向両端及びその間が桟２上に固定されているので、化粧板３は表面から荷重がかかっても変形し難い。 One decorative board 3 is arranged so as to span at least three crosspieces 2. - 特許庁In FIG. 5, the decorative boards 32, 34, 35 span three crosspieces 22, 23, 24 arranged in order from the left side to the right side of the drawing. Specifically, the crosspieces 22, 23, and 24 are equally spaced at the interval L as described above, and the interval L is 1/2 of the longitudinal dimension of the decorative board 3. As shown in FIG. Both ends in the longitudinal direction of the decorative plate 32 are fixed on the crosspieces 22 and 24, respectively, and furthermore, the rear surface of the central part in the longitudinal direction of the decorative plate 32 is fixed on the central crosspiece 23. - 特許庁The decorative plates 34 and 35 located above and below the decorative plate 32 are similarly fixed to the crosspieces 22 , 23 and 24 . Further, the decorative plates 31 and 33 adjacent to the decorative plate 32 in the orthogonal direction X are also fixed to the bars 2 at both ends in the longitudinal direction and pressed against the decorative plate 32 . In this manner, both longitudinal ends of each decorative board 3 and the space between them are fixed to the rails 2, so that the decorative boards 3 are not easily deformed even if a load is applied from the surface.

化粧板３を桟２に固定するにあたっては、接着剤を使用するのが好ましい。これにより、化粧板３に釘孔が形成されず、防水性が損なわれないようにすることができる。接着剤としては、弾性接着剤を使用するのが好ましい。この場合、気温変化等による化粧板３の寸法変化に対する弾性接着剤の追従性が良好である。弾性接着剤としては、例えばウレタン樹脂、変成シリコーン樹脂、エポキシ・変成シリコーン樹脂、シリル化ウレタン樹脂、シリコーン樹脂、ポリイソブチレン樹脂、ブチルゴム樹脂、アクリル樹脂、アクリルウレタン樹脂、ポリサルファイド樹脂、アクリル変成シリコーン樹脂、テレケリックポリアクリレート樹脂など、ゴム状弾性を有する接着剤を使用することができる。接着剤は、接着ガンなどを用いて桟２上に供給されるが、このとき、接着剤は桟２を固定している固定具の頭部を覆うように供給されることが好ましい。これにより、接着剤で固定具の頭部が覆われることになって、防水性が向上する。そして、桟２上に接着剤を供給した後、化粧板３の長手方向端部を桟２上に載置することにより、桟２に化粧板３を接着して固定することができる。 An adhesive is preferably used to fix the decorative board 3 to the crosspiece 2 . As a result, nail holes are not formed in the decorative board 3, and waterproofness can be prevented from being impaired. An elastic adhesive is preferably used as the adhesive. In this case, the elastic adhesive has good followability to dimensional changes of the decorative panel 3 due to temperature changes and the like. Examples of elastic adhesives include urethane resins, modified silicone resins, epoxy/modified silicone resins, silylated urethane resins, silicone resins, polyisobutylene resins, butyl rubber resins, acrylic resins, acrylic urethane resins, polysulfide resins, acrylic modified silicone resins, Adhesives having elastomeric properties can be used, such as telechelic polyacrylate resins. The adhesive is supplied onto the crosspiece 2 using an adhesive gun or the like. At this time, the adhesive is preferably supplied so as to cover the head of the fixture that secures the crosspiece 2 . As a result, the head of the fixture is covered with the adhesive, improving waterproofness. After the adhesive is supplied onto the crosspiece 2 , the longitudinal end of the decorative board 3 is placed on the crosspiece 2 so that the decorative board 3 can be adhered and fixed to the crosspiece 2 .

上記のように形成される屋根構造では、屋根下地１と化粧板３との間に桟２の高さ分の通気空間４が軒先まで連続形成されている。複数枚の化粧板３で形成された化粧面上に雨が降ると、上記の如く当該化粧面全体がフラットとなっているため、雨水が軒側に流れ易い。ただし、雨水の一部は、化粧板３同士の突付け箇所Ｔの隙間に流れ落ちる。勾配方向Ｙに並ぶ化粧板３同士の突付け箇所Ｔの隙間に流れ落ちた雨水は、防水シート１２上に落下するものの、上記の如く通気空間４が軒先まで連続形成されているため、通気空間４が排水部として機能して雨水が軒先にスムーズに流れ落ちる。一方、直交方向Ｘに並ぶ化粧板３同士の突付け箇所Ｔの隙間に流れ落ちた雨水は、桟２上に至るものの、上記の如く通気空間４が隣接するため、通気によって乾燥する。 In the roof structure formed as described above, a ventilation space 4 corresponding to the height of the crosspiece 2 is continuously formed between the roof substrate 1 and the decorative plate 3 to the edge of the eaves. When it rains on the decorative surface formed by the plurality of decorative panels 3, rainwater easily flows to the eaves side because the entire decorative surface is flat as described above. However, part of the rainwater flows down into the gaps between the bumps T between the decorative boards 3 . Although the rainwater that has flowed down into the gaps T between the decorative boards 3 aligned in the gradient direction Y falls onto the waterproof sheet 12, the ventilation space 4 is formed continuously up to the eaves as described above. functions as a drainage part and rainwater smoothly flows down to the eaves. On the other hand, the rainwater that has flowed down into the gaps T between the decorative panels 3 aligned in the orthogonal direction X reaches the crosspieces 2, but is dried by ventilation because the ventilation spaces 4 are adjacent to each other as described above.

本実施形態の屋根構造は、以下の特徴を有する。 The roof structure of this embodiment has the following features.

すなわち、本実施形態は、
表面に防水処理が施された屋根下地１と、
屋根下地１上に該屋根下地１の勾配方向Ｙと直交する直交方向Ｘに互いに間隔をあけて複数配置され、それぞれ前記勾配方向Ｙに延びるように設けられた桟２と、
複数の桟２上に載置固定された複数の化粧板３と、を備え、
化粧板３は、隣り合う他の化粧板３と周縁同士が突付けられて施工されている。 That is, this embodiment is
a roof substrate 1 whose surface is waterproofed;
a plurality of crosspieces 2 arranged on a roof substrate 1 at intervals in an orthogonal direction X orthogonal to the slope direction Y of the roof substrate 1 and extending in the slope direction Y;
A plurality of decorative boards 3 mounted and fixed on a plurality of crosspieces 2,
The decorative plate 3 is constructed with the peripheral edges of the adjacent decorative plate 3 butted against each other.

このため、本実施形態は、化粧板３と屋根下地１の間に桟２の高さ分の通気空間４を形成することができ、化粧板３を屋根下地１上に直接葺く場合に比べて、通気空間４により雨水を滞留しにくくして防水性を向上させることができる。 Therefore, in the present embodiment, the ventilation space 4 corresponding to the height of the crosspiece 2 can be formed between the decorative plate 3 and the roof base 1, compared to the case where the decorative plate 3 is directly roofed on the roof base 1. Therefore, the ventilation space 4 makes it difficult for rainwater to stay, thereby improving waterproofness.

また本実施形態は、化粧板３の突付け箇所Ｔが桟２に位置するのが好ましい。 Further, in this embodiment, it is preferable that the projecting portion T of the decorative plate 3 is positioned on the crosspiece 2 .

この場合、本実施の形態は、雨水が化粧板３の突付け箇所Ｔから桟２上に至っても通気空間４での通気より乾燥させることができ、防水性が向上する。 In this case, in this embodiment, even if rainwater reaches from the projecting portion T of the decorative plate 3 to the crosspiece 2, it can be dried by ventilation in the ventilation space 4, thereby improving the waterproofness.

また本実施形態は、化粧板３は桟２に接着により固定されていることが好ましい。 Further, in this embodiment, it is preferable that the decorative board 3 is fixed to the crosspiece 2 by adhesion.

この場合、本実施の形態は、化粧板３に釘孔が形成されず、化粧板３を桟２に釘打ちで固定する場合に比べて、防水性を向上させることができる。 In this case, according to the present embodiment, no nail holes are formed in the decorative board 3, and waterproofness can be improved as compared with the case where the decorative board 3 is fixed to the crosspiece 2 by nailing.

また本実施形態は、化粧板３は、弾性接着剤によって桟２に固定されていることが好ましい。 Further, in this embodiment, the decorative plate 3 is preferably fixed to the crosspiece 2 with an elastic adhesive.

この場合、弾性接着剤が化粧板３の寸法変化に追従可能であるため、化粧板３に応力がかかり難く、化粧板３の耐久性を保つことができる。 In this case, since the elastic adhesive can follow the dimensional change of the decorative board 3, stress is hardly applied to the decorative board 3, and the durability of the decorative board 3 can be maintained.

１ 屋根下地
２ 桟
３ 化粧板
４ 通気空間
Ｔ 突付け箇所
Ｘ 直交方向
Ｙ 勾配方向 1 Roof base 2 Crosspiece 3 Decorative board 4 Ventilation space T Projection point X Orthogonal direction Y Gradient direction

Claims (2)

表面に防水処理が施された屋根下地と、
前記屋根下地上に該屋根下地の勾配方向と直交する直交方向に互いに間隔をあけて複数配置され、それぞれ前記勾配方向に延びるように設けられた桟と、
前記複数の桟上に載置固定された複数の化粧板と、を備え、
前記化粧板は、四辺の周縁が隣り合う他の前記化粧板の周縁に突付けられて施工され、前記桟に接着により直接固定されている
屋根構造。 The roof base with waterproof treatment on the surface,
a plurality of crosspieces arranged on the roof substrate at intervals in an orthogonal direction perpendicular to the slope direction of the roof substrate and each provided to extend in the slope direction;
and a plurality of decorative boards mounted and fixed on the plurality of crosspieces,
A roof structure in which said decorative plate is constructed such that the peripheral edges of four sides of said decorative plate are abutted against the peripheral edges of other adjacent decorative plates, and are directly fixed to said crosspieces by adhesion . 表面に防水処理が施された屋根下地と、
前記屋根下地上に該屋根下地の勾配方向と直交する直交方向に互いに間隔をあけて複数配置され、それぞれ前記勾配方向に延びるように設けられた桟と、
前記複数の桟上に載置固定された複数の化粧板と、を備え、
前記化粧板は、四辺の周縁が隣り合う他の前記化粧板の周縁に突付けられて施工され、前記化粧板の突付け箇所が前記桟に位置し、
前記化粧板は、前記桟に接着剤により固定され、
前記接着剤は、前記桟を前記屋根下地に固定している固定具の頭部を覆っている
屋根構造。 The roof base with waterproof treatment on the surface,
a plurality of crosspieces arranged on the roof substrate at intervals in an orthogonal direction perpendicular to the slope direction of the roof substrate and each provided to extend in the slope direction;
and a plurality of decorative boards mounted and fixed on the plurality of crosspieces,
The decorative board is constructed by abutting the peripheral edges of the four sides against the peripheral edges of the other adjacent decorative boards, and the abutment part of the decorative board is located on the crosspiece,
The decorative board is fixed to the crosspiece with an adhesive,
The adhesive covers the heads of fasteners that secure the crosspieces to the roof subfloor.
roof structure.
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Citations (5)

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JP2000064513A (en) 1998-08-17 2000-02-29 Asahi Glass Co Ltd Roof material supporting member, roof construction using roof material supporting member, and roofing method using roof material supporting member
JP2003013553A (en) 2001-06-29 2003-01-15 Yoshiki Hiraoka Roof tile construction method
JP2005188254A (en) 2003-12-26 2005-07-14 Ever Kk Roof tile construction method and roof structure
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WO2016092745A1 (en) 2014-12-09 2016-06-16 パナソニックＩｐマネジメント株式会社 Heat collection member and heat collection system

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JPS53120816A (en) * 1977-03-30 1978-10-21 Shigeji Sugaya Method of covering roof without sheathing roof board and roof tile therefor
US5060445A (en) * 1989-03-23 1991-10-29 Jong Slosson B Roof construction
JPH08114004A (en) * 1994-10-18 1996-05-07 Disco Abrasive Syst Ltd Roofing construction method using natural slate
JPH1068194A (en) * 1996-08-27 1998-03-10 Yoshitaka Yoshinari Roofing structure

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Publication number Priority date Publication date Assignee Title
JP2000064513A (en) 1998-08-17 2000-02-29 Asahi Glass Co Ltd Roof material supporting member, roof construction using roof material supporting member, and roofing method using roof material supporting member
JP2003013553A (en) 2001-06-29 2003-01-15 Yoshiki Hiraoka Roof tile construction method
JP2005188254A (en) 2003-12-26 2005-07-14 Ever Kk Roof tile construction method and roof structure
JP2013057175A (en) 2011-09-07 2013-03-28 Hiroaki Ishihara Construction method of roof with solar power generation module
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