JP7482379B2 - Sloped roof eaves structure and sloped roof eaves construction method - Google Patents

Sloped roof eaves structure and sloped roof eaves construction method Download PDF

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JP7482379B2
JP7482379B2 JP2021099509A JP2021099509A JP7482379B2 JP 7482379 B2 JP7482379 B2 JP 7482379B2 JP 2021099509 A JP2021099509 A JP 2021099509A JP 2021099509 A JP2021099509 A JP 2021099509A JP 7482379 B2 JP7482379 B2 JP 7482379B2
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保二 中松
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Sekisui House Ltd
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Description

本発明は、既設屋根瓦を新設屋根瓦で被覆する勾配屋根の軒先構造及びその施工方法に関する。 The present invention relates to a sloped roof eaves structure in which existing roof tiles are covered with new roof tiles, and a construction method for the same.

一般的に、勾配屋根の軒先部分は、屋根面から伝い落ちてくる雨水を受けるため損傷しやすく、従来より、この軒先部分を改修する方法として既設の軒先部材を新たな軒先部材で被覆する所謂カバー工法が知られている（例えば特許文献１及び特許文献２）。 Generally, the eaves of a sloped roof are easily damaged because they are subject to rainwater running down from the roof surface. A method known as a cover method for repairing these eaves is to cover the existing eaves members with new eaves members (see, for example, Patent Documents 1 and 2).

特許文献１及び特許文献２に記載の発明には、既設勾配屋根の軒先部材を新設のカバー材で被覆する工法について記載されている。これらのカバー材は、軒先側へ突出している最水下の既設屋根瓦を被覆する部分と、既設水切り材を被覆する部分とを一体的に形成されているため、野地板と既設屋根瓦との間から雨水が浸入することを効果的に防止することができる。 The inventions described in Patent Documents 1 and 2 describe a method of covering the eaves members of an existing sloped roof with a new covering material. These covering materials are integrally formed with a part that covers the existing roof tiles below the waterline that protrude toward the eaves side, and a part that covers the existing water-repellent material, so they can effectively prevent rainwater from seeping in between the sheathing boards and the existing roof tiles.

特開２００７－４６２４８号公報JP 2007-46248 A 特開平８－１２０８４８号公報Japanese Patent Application Laid-Open No. 8-120848

しかしながら、特許文献１及び特許文献２に記載のカバー材は、既設水切り材の下部に位置する既設鼻隠し材を被覆していないため、既設鼻隠し材と野地板との間から雨水が浸入する可能性がある。また傷んだ勾配屋根の軒先部材は、経年劣化によって各部材ごとに損傷や撓みなどの程度が異なるため、既設屋根瓦を被覆する部分と既設水切り材を被覆する部分とが一体化されたカバー材では、既設の軒先部材に上手く設置することができない虞がある。 However, the covering materials described in Patent Documents 1 and 2 do not cover the existing fascia material located below the existing flashing material, so there is a possibility that rainwater may seep in between the existing fascia material and the sheathing board. In addition, the degree of damage and bending of each component of a damaged sloped roof varies depending on the component due to deterioration over time, so there is a risk that a covering material in which the part covering the existing roof tiles and the part covering the existing flashing material are integrated cannot be installed properly on the existing eaves components.

そこで、本発明は上述した課題を鑑みてなされたものであって、勾配屋根の軒先部分を改修する際に、防水性と施工性とを向上することができる勾配屋根の軒先構造及びその施工方法を提供することを目的とする。 The present invention was made in consideration of the above-mentioned problems, and aims to provide a sloped roof eaves structure and construction method that can improve waterproofing and workability when renovating the eaves portion of a sloped roof.

本発明の第１の勾配屋根の軒先構造は、最も水下の母屋よりも軒先側に設置された既設軒先水切り材を被覆する新設軒先水切り材と、最も水下に位置する既設屋根瓦の上面に固定され、且つ、最も水下に配置される新設屋根瓦を係止する軒先役物と、前記母屋の軒先側の面に固定された既設鼻隠し材を被覆する新設鼻隠し材と、を備え、前記新設軒先水切り材は、前記既設軒先水切り材を被覆し、水下側へ突出するＶ字型状の水切り被覆部と、当該水切り被覆部の上端部を軒先側へ折り曲げてなる折曲片と、前記水切り被覆部の前記母屋側の一端部を水上側へ延出させた延出部と、当該延出部の前記母屋側の一端から下方へ延びる垂下部と、を有しており、前記軒先役物は、最も水下に位置する前記既設屋根瓦の軒先側の面、及び前記折曲片を被覆し、前記垂下部は、前記新設鼻隠し材で被覆されることを特徴としている。 The eaves structure of the first sloped roof of the present invention comprises a new eaves edge flashing material that covers an existing eaves edge flashing material installed on the eaves side of the main building that is furthest below the water, an eaves edge accessory that is fixed to the upper surface of the existing roof tile located furthest below the water and that engages the new roof tile that is located furthest below the water, and a new fascia material that covers the existing fascia material fixed to the eaves side surface of the main building , and the new eaves edge flashing material covers the existing eaves edge flashing material and protrudes to the underwater side. The new roof tile has a V-shaped gutter covering portion, a bent piece formed by bending the upper end of the gutter covering portion toward the eaves side , an extension portion that extends one end of the gutter covering portion on the main house side toward the above-water side, and a hanging portion that extends downward from one end of the extension portion on the main house side, and the eaves fitting covers the eaves side surface of the existing roof tile that is located furthest below water and the bent piece, and the hanging portion is covered by the new fascia material .

本発明の第２の勾配屋根の軒先構造は、前記新設鼻隠し材が、軒先側の面に上吊り式の軒樋が固定されることを特徴としている。 The second sloped roof eaves structure of the present invention is characterized in that the newly installed fascia material has a suspended eaves gutter fixed to the eaves side surface.

本発明の第３の勾配屋根の軒先構造は、前記新設軒先水切り材が、軒先側の面に水下側へ突出する板状の雨水ガイドを固定されることを特徴としている。 The third sloped roof eaves structure of the present invention is characterized in that the newly installed eaves drip-water material has a plate-shaped rainwater guide fixed to the eaves side surface, protruding below the water.

本発明の第１の勾配屋根の軒先施工方法は、第１から第３のいずれかに記載の勾配屋根の軒先構造を用いた勾配屋根の軒先施工方法であって、前記新設軒先水切り材で既設軒先水切り材を被覆し、前記軒先役物を最も水下に位置する既設屋根瓦の上面に固定するとともに、水下側の一端部で前記既設屋根瓦の軒先側の面、及び前記折曲片を被覆し、前記新設鼻隠し材で既設鼻隠し材及び前記垂下部を被覆することを特徴としている。 The first sloped roof eaves construction method of the present invention is a sloped roof eaves construction method using the sloped roof eaves structure described in any one of claims 1 to 3 , characterized in that the existing eaves drip material is covered with the newly installed eaves drip material, the eaves accessories are fixed to the upper surface of the existing roof tile that is located furthest below water, the eaves side surface of the existing roof tile and the folded piece are covered with one end on the below water side, and the existing fascia material and the hanging portion are covered with the newly installed fascia material.

本発明の第１の勾配屋根の軒先構造によると、既設の軒先部材を被覆する部材が、新設軒先水切り材、軒先役物、及び新設鼻隠し材に分かれているので、それぞれの既設軒先部材にフィットさせやすく、施工性を向上させることができる。また軒先役物は、最も水下に位置する既設屋根瓦の軒先側の面、及び折曲片を被覆するので、軒先役物と折曲片との間から雨水が浸入することを効果的に防止することができる。 According to the first sloped roof eaves structure of the present invention, the components covering the existing eaves components are divided into a new eaves drip-line material, eaves fittings, and new fascia material, making it easier to fit each of the existing eaves components and improving workability. In addition, the eaves fittings cover the eaves side surface of the existing roof tile that is located furthest below water, as well as the folded pieces, so rainwater can be effectively prevented from seeping in between the eaves fittings and the folded pieces.

本発明の第１の勾配屋根の軒先構造によると、新設軒先水切り材は、下端部が新設鼻隠し材で被覆される。したがって、新設軒先水切り材と新設鼻隠し材との間から雨水が侵入することを効果的に防止できる。 According to the first sloped roof structure of the present invention, the lower end of the new eaves edge water drainage material is covered by the new fascia board material. Therefore, it is possible to effectively prevent rainwater from entering between the new eaves edge water drainage material and the new fascia board material.

本発明の第２の勾配屋根の軒先構造によると、新設鼻隠し材は、軒先側の面に上吊り式の軒樋が固定されるため、軒樋のブラケットが目立たず、改修後の軒先の美観性を向上させることができる。 According to the second sloped roof eaves structure of the present invention, the newly installed fascia material has a suspended eaves gutter fixed to the eaves side surface, so that the eaves gutter bracket is not noticeable, and the aesthetic appearance of the eaves after renovation can be improved.

本発明の第３の勾配屋根の軒先構造によると、新設軒先水切り材は、軒先側の面に水下側へ突出する板状の雨水ガイドを固定される。したがって、軒樋を支持するブラケットが干渉して軒樋と新設軒先水切り材との間の隙間が広がったとしても、当該隙間から新設鼻隠し材の方向へ雨水が垂れることを防止できる。 According to the third sloped roof structure of the present invention, the new eaves edge flashing has a plate-shaped rainwater guide fixed to the eaves edge surface, which protrudes downward. Therefore, even if the bracket supporting the eaves gutter interferes and the gap between the eaves gutter and the new eaves edge flashing widens, rainwater can be prevented from dripping from the gap toward the new fascia board.

本発明の第１の勾配屋根の軒先構造によると、新設軒先水切り材は、既設軒先水切り材を被覆する部分が、水下側へ突き出しているため、より確実に雨水を下方へ流し落とすことができ防水性を向上させることができる。 According to the eaves structure of the first sloped roof of the present invention, the part of the newly installed eaves flashing that covers the existing eaves flashing protrudes below the water, so that rainwater can be more reliably drained downward, improving waterproofing.

本発明の第１の勾配屋根の軒先施工方法によると、新設軒先水切り材で既設軒先水切り材を被覆した後、軒先役物を最も水下に位置する既設屋根瓦の上面に固定するとともに、水下側の一端部で既設屋根瓦の軒先側の面、及び折曲片を被覆し、さらに新設鼻隠し材で既設鼻隠し材及び垂下部を被覆するとされる。したがって、それぞれの既設軒先部材に各新設軒先部材をフィットさせやすく、施工性を向上させることができる。また新設軒先水切り材と軒先役物との間、及び新設軒先水切り材と新設鼻隠し材との間から雨水が浸入することを効果的に防止することができる。 According to the first sloped roof construction method of the present invention, after covering the existing eaves flashing with the new eaves flashing, the eaves accessories are fixed to the top surface of the existing roof tile located furthest below water, and the eaves side surface and the folded piece of the existing roof tile are covered with one end of the underwater side, and the existing fascia material and the hanging part are covered with the new fascia material. Therefore, it is easy to fit each new eaves member to each existing eaves member, and construction can be improved. It is also possible to effectively prevent rainwater from entering between the new eaves flashing and the eaves accessories, and between the new eaves flashing and the new fascia material.

勾配屋根の軒先構造を示す断面図。Cross-sectional view showing the eaves structure of a sloped roof. 既設の勾配屋根を示す断面図。Sectional view showing the existing sloped roof. 図１のＡ部分拡大断面図。FIG. 2 is an enlarged cross-sectional view of part A in FIG. 新設軒先水切り材を示す斜視図。An oblique view showing the newly installed eaves drip edge material. 軒先役物を示す斜視図。An oblique view showing the eaves fittings. 新設鼻隠し材を示す斜視図。An oblique view showing the newly installed fascia material. 既設軒先水切り材を新設軒先水切り材で被覆した状態を示す断面図。A cross-sectional view showing the existing eaves flashing material covered with newly installed eaves flashing material. 軒先役物を既設屋根瓦に設置した状態を示す断面図。A cross-sectional view showing the eaves accessories installed on existing roof tiles. 新設屋根瓦を設置した状態を示す断面図。Cross-sectional view showing newly installed roof tiles.

以下、本発明に係る勾配屋根の軒先構造の最良の実施形態について各図を参照しつつ説明する。本願の勾配屋根の軒先構造は、既設勾配屋根の軒先部分を改修する際に用いる構造であり、既設の軒先部材を新設の軒先部材で被覆するものである。なお、本発明における「新設軒先水切り材の軒先側の面」、「新設軒先水切り材の下端部」、「新設鼻隠し材の軒先側の面」は、本実施形態においてそれぞれ「軒先被覆部の軒先側の面２１ａ」、「垂下部２４」、「第１被覆部の軒先側の面５１」が相当する。 The best embodiment of the eaves structure of a sloped roof according to the present invention will be described below with reference to the various figures. The eaves structure of a sloped roof according to the present application is a structure used when renovating the eaves portion of an existing sloped roof, in which the existing eaves member is covered with a new eaves member. Note that the "eaves side surface of the newly installed eaves flashing material", "lower end of the newly installed eaves flashing material", and "eaves side surface of the newly installed fascia material" in this invention correspond to the "eaves side surface 21a of the eaves covering part", the "hanging part 24", and the "eaves side surface 51 of the first covering part", respectively, in this embodiment.

図１及び図３に示すように、勾配屋根の軒先構造１は、既設軒先水切り材Ｘ１を被覆する新設軒先水切り材２と、最も水下に位置する既設屋根瓦Ｘ２の上面Ｘ２ａに固定され、且つ、最も水下に配置される新設屋根瓦３を係止する軒先役物４と、既設鼻隠し材Ｘ３を被覆する新設鼻隠し材５と、新設軒先水切り材２に固定される板状の雨水ガイド６と、新設鼻隠し材５に固定される軒樋７と、を備えている。 As shown in Figures 1 and 3, the eaves structure 1 of the sloped roof includes a new eaves edge water drainage material 2 that covers the existing eaves edge water drainage material X1, an eaves edge accessory 4 that is fixed to the upper surface X2a of the existing roof tile X2 that is located furthest below water and engages the new roof tile 3 that is located furthest below water, a new fascia material 5 that covers the existing fascia material X3, a plate-shaped rainwater guide 6 that is fixed to the new eaves edge water drainage material 2, and an eaves gutter 7 that is fixed to the new fascia material 5.

図２に示すように改修前の勾配屋根Ｘは、母屋Ｘ４、母屋Ｘ４の上部にビスＸ５で固定される野地板Ｘ６、防水用の既設アスファルトルーフィングＸ７、既設屋根瓦Ｘ２、野地板Ｘ６の軒先側の面を被覆する既設軒先水切り材Ｘ１、母屋Ｘ４の軒先側の面に固定される既設鼻隠し材Ｘ３、とから構成されており、また、母屋Ｘ４の下面には軒天井材Ｘ８が固定されている。図示するように既設軒先水切り材Ｘ１は、軒先側へ突き出した形状をしており、既設屋根瓦Ｘ２から伝い落ちてくる雨水が母屋Ｘ４の方向へ流れることを防止している。また既設屋根瓦Ｘ２は、平板状の化粧スレート材であり、水下から水上へ向けて順に重ね葺きされ、且つ、最も水下に位置する既設屋根瓦Ｘ２の一端は野地板Ｘ６よりも水下側へ突き出している。一方、既設鼻隠し材Ｘ３は、母屋Ｘ４の軒先側の面に固定され、母屋Ｘ４よりも下方へ突出する固定部Ｘ３ａと、固定部Ｘ３ａの下端から水上側へ延び、軒天井材Ｘ８の天井面Ｘ８ａを被覆する天井被覆部Ｘ３ｂと、天井被覆部Ｘ３ｂの水上側の一端から上方へ延びるとともに、軒先側へ折曲される折曲部Ｘ３ｃと、を有しており、折曲部Ｘ３ｃの上端は軒天井材Ｘ８に当接している。 As shown in Figure 2, the sloped roof X before renovation is composed of the purlin X4, the sheathing board X6 fixed to the top of the purlin X4 with screws X5, the existing asphalt roofing X7 for waterproofing, the existing roof tiles X2, the existing eaves edge water-repellent material X1 covering the eaves side surface of the sheathing board X6, and the existing fascia material X3 fixed to the eaves side surface of the purlin X4. Also, the eaves ceiling material X8 is fixed to the underside of the purlin X4. As shown in the figure, the existing eaves edge water-repellent material X1 has a shape that protrudes toward the eaves side, preventing rainwater dripping down from the existing roof tiles X2 from flowing toward the purlin X4. The existing roof tiles X2 are flat decorative slate materials that are laid in layers in order from below the water to above the water, and one end of the existing roof tile X2 located furthest below the water protrudes below the water than the sheathing board X6. On the other hand, the existing fascia material X3 has a fixed part X3a that is fixed to the eaves side surface of the main building X4 and protrudes downward from the main building X4, a ceiling covering part X3b that extends above the water from the lower end of the fixed part X3a and covers the ceiling surface X8a of the eaves ceiling material X8, and a bent part X3c that extends upward from one end above the water of the ceiling covering part X3b and is bent toward the eaves side, and the upper end of the bent part X3c abuts against the eaves ceiling material X8.

続いて、既設の軒先部材を被覆する新設軒先部材について説明する。図３及び図４に示す新設軒先水切り材２は、１枚の金板を折り曲げて形成したものであって、既設軒先水切り材Ｘ１を被覆するＶ字形状の水切り被覆部２１と、水切り被覆部２１の上端部を軒先側へ折り曲げて形成される折曲片２２と、水切り被覆部２１の母屋Ｘ４側の一端部を水上側へ延出させた延出部２３と、延出部２３の母屋Ｘ４側の一端から下方へ延びる垂下部２４と、を有している。図示するように、新設軒先水切り材２で既設軒先水切り材Ｘ１を被覆すると、折曲片２２は、最も水下に位置する既設屋根瓦Ｘ２の下面Ｘ２ｃに当接し、また延出部２３及び垂下部２４は、それぞれ野地板Ｘ６の下面Ｘ６ａ、及び既設鼻隠し材Ｘ３に当接する。 Next, the new eaves member that covers the existing eaves member will be described. The new eaves flashing material 2 shown in Figures 3 and 4 is formed by bending a single metal plate, and has a V-shaped flashing covering portion 21 that covers the existing eaves flashing material X1, a folded piece 22 formed by folding the upper end of the flashing covering portion 21 toward the eaves side, an extension portion 23 that extends one end of the flashing covering portion 21 on the purlin X4 side to the water side, and a hanging portion 24 that extends downward from one end of the extension portion 23 on the purlin X4 side. As shown in the figure, when the existing eaves flashing material X1 is covered with the new eaves flashing material 2, the folded piece 22 abuts against the lower surface X2c of the existing roof tile X2 that is located furthest below the water, and the extension portion 23 and the hanging portion 24 abut against the lower surface X6a of the sheathing board X6 and the existing fascia material X3, respectively.

図１及び図３に示す新設屋根瓦３は、板厚の薄い金属板を折曲して形成された金属屋根瓦であり、軒方向へ延びる長尺な部材である。新設屋根瓦３は、既設屋根瓦Ｘ２の上部を被覆する瓦被覆部３１と、瓦被覆部３１の水下側の一端を下方へ折下げて形成され、軒先役物４又は隣り合う水下側の新設屋根瓦３に引掛けられる水下側引掛け片３２と、瓦被覆部３１の水上側の一端を波型状に折り曲げて形成し、水上側の新設屋根瓦３を引掛ける水上側引掛け片３３と、を有している。図３に示すように、水下側引掛け片３２は、瓦被覆部３１の水下側の一端から下方へ延びる垂下片３２ａと、垂下片３２ａの下端を水上側へ折曲して形成された瓦係止片３２ｂと、からなり、瓦係止片３２ｂの先端は、水下側へ向けて略Ｕ字型状に折り下げられている。一方水上側引掛け片３３は、図１に示すように、水下側へ開く瓦係止溝３３ａを形成しており、この瓦係止溝３３ａに隣接する新設屋根瓦３の瓦係止片３２ｂを引掛けることができる。また水上側引掛け片３３の水上側の一端部は、既設屋根瓦Ｘ２に新設ビス８で固定される。なお、新設屋根瓦３の下部にはポリスチレンフォームで形成された断熱材９が充填され、さらに既設屋根瓦Ｘ２と断熱材９との間には新設アスファルトルーフィング１０が敷設される。 1 and 3, the new roof tile 3 is a metal roof tile formed by bending a thin metal plate, and is a long member extending in the eaves direction. The new roof tile 3 has a tile covering part 31 that covers the upper part of the existing roof tile X2, a belowwater side hook piece 32 formed by bending one end of the belowwater side of the tile covering part 31 downward and hooked onto the eaves edge accessory 4 or the adjacent belowwater side new roof tile 3, and an abovewater side hook piece 33 formed by bending one end of the abovewater side of the tile covering part 31 into a wave shape and hooking onto the abovewater side new roof tile 3. As shown in FIG. 3, the underwater hook 32 consists of a hanging piece 32a extending downward from one end of the underwater side of the tile covering part 31, and a tile locking piece 32b formed by bending the lower end of the hanging piece 32a toward the abovewater side, and the tip of the tile locking piece 32b is folded down toward the underwater side in an approximately U-shape. On the other hand, the abovewater hook 33 forms a tile locking groove 33a that opens toward the belowwater side as shown in FIG. 1, and the tile locking piece 32b of the adjacent new roof tile 3 can be hooked into this tile locking groove 33a. In addition, one end of the abovewater hook 33 is fixed to the existing roof tile X2 with a new screw 8. The lower part of the new roof tile 3 is filled with insulation material 9 made of polystyrene foam, and new asphalt roofing 10 is laid between the existing roof tile X2 and the insulation material 9.

図３及び図５に示す軒先役物４は、板厚の薄い金属板を折曲して形成された軒方向へ延びる部材である。軒先役物４は、既設屋根瓦Ｘ２の上部に載置される載置部４１と、載置部４１の軒先側の一端を波型状に折曲して形成される係止部４２と、当該係止部４２の軒先側の一端を下方へ折曲するとともに水上側へ折り曲げて形成され、既設屋根瓦Ｘ２の軒先側の面Ｘ２ｂ及び下面Ｘ２ｃに外嵌する嵌合部４３と、を有している。 The eaves accessory 4 shown in Figures 3 and 5 is a member extending in the eaves direction and formed by bending a thin metal plate. The eaves accessory 4 has a mounting portion 41 that is placed on top of the existing roof tile X2, a locking portion 42 formed by bending one end of the mounting portion 41 on the eaves side into a wave shape, and a fitting portion 43 formed by bending one end of the locking portion 42 on the eaves side downward and toward the water surface, and fitted onto the surface X2b and underside X2c on the eaves side of the existing roof tile X2.

図５に示すように、係止部４２は、載置部４１の水下側の一端を上方へ折上げるとともに、水下側へ折曲して形成した突出部４２ａと、突出部４２ａの水下側の一端を凹型状に折り曲げて形成された軒先係止溝４２ｂと、から構成される。軒先係止溝４２ｂは、軒先側へ開く形状に加工されており、先述した最も水下に配置される新設屋根瓦３の瓦係止片３２ｂを挿入することができる。そして嵌合部４３は、軒先係止溝４２ｂの水下側の一端から下方へ延び、既設屋根瓦Ｘ２の軒先側の面Ｘ２ｂを被覆する被覆片４３ａと、被覆片４３ａの下端を水上側へ折曲して形成され、既設屋根瓦Ｘ２の下面Ｘ２ｃ側に回り込み、新設軒先水切り材２の折曲片２２に係止する係止片４３ｂと、から構成される。 As shown in FIG. 5, the locking portion 42 is composed of a protruding portion 42a formed by bending one end of the underwater side of the mounting portion 41 upward and downward, and an eaves locking groove 42b formed by bending one end of the underwater side of the protruding portion 42a into a concave shape. The eaves locking groove 42b is processed into a shape that opens toward the eaves side, and the tile locking piece 32b of the newly installed roof tile 3 that is placed most below the water as described above can be inserted. The fitting portion 43 is composed of a covering piece 43a that extends downward from one end of the underwater side of the eaves locking groove 42b and covers the eaves side surface X2b of the existing roof tile X2, and a locking piece 43b that is formed by bending the lower end of the covering piece 43a toward the abovewater side, wraps around to the lower surface X2c of the existing roof tile X2, and locks with the bent piece 22 of the newly installed eaves water-repelling material 2.

図３及び図６に示す新設鼻隠し材５は、１枚の金板を折り曲げて形成したものであって、既設鼻隠し材Ｘ３の固定部Ｘ３ａを全面被覆する第１被覆部５１と、第１被覆部５１の下端から水上側へ延びて天井被覆部Ｘ３ｂを被覆する第２被覆部５２と、第２被覆部５２の水上側の一端から上方へ延びて軒天井材Ｘ８に当接する第３被覆部５３と、を有している。なお、軒先水切り材２、軒先役物４、新設鼻隠し材５の長さは特に限定されないが、長さを２０００～３０００ｍｍ程度とし、運搬し易い長さとすることが望ましい。 The new fascia material 5 shown in Figures 3 and 6 is formed by bending a single metal plate, and has a first covering part 51 that completely covers the fixed part X3a of the existing fascia material X3, a second covering part 52 that extends from the lower end of the first covering part 51 above the water and covers the ceiling covering part X3b, and a third covering part 53 that extends upward from one end above the water of the second covering part 52 and abuts the eaves ceiling material X8. The lengths of the eaves edge water trim 2, eaves edge fittings 4, and new fascia material 5 are not particularly limited, but it is desirable to make the length about 2000 to 3000 mm, which is a length that is easy to transport.

図３等に示すように、新設軒先水切り材２は、水切り被覆部２１の軒先側の面２１ａに板状の雨水ガイド６が新設ビス８で固定され、また、新設鼻隠し材５は、第１被覆部５１の軒先側の面５１ａに軒樋７が設置される。雨水ガイド６は、金板を折り曲げて形成されたものであって、水切り被覆部２１に固定される水切り固定片６１と、水切り固定片６１の軒先側の一端から水下へ延び、雨水を軒樋７へと導水するガイド片６２とからなり、ガイド片６２は、軒先側の一端が、新設軒先水切り材２よりも水下側へ突出している。図示するように、軒樋７は雨水を受ける樋部７１をブラケット７２で上方から支持する所謂上吊り式の樋であるため、軒先部分を見上げた際にブラケット７２が目立たず改修後の軒先の美観性を向上させることができる。そして、雨水ガイド６は、ガイド片６２によって新設屋根瓦３及び軒先役物４から受けた雨水を樋部７１へ導くので、ブラケット７２が干渉して新設軒先水切り材２と樋部７１との間の隙間が広がっても、当該隙間から新設鼻隠し材５の方向へ雨水が垂れることを効果的に防止することができる。 As shown in FIG. 3, the newly installed eaves gutter 2 has a plate-shaped rainwater guide 6 fixed to the eaves side surface 21a of the gutter covering part 21 with a new screw 8, and the newly installed fascia material 5 has an eaves gutter 7 installed on the eaves side surface 51a of the first covering part 51. The rainwater guide 6 is formed by bending a metal plate and consists of a gutter fixing piece 61 fixed to the gutter covering part 21 and a guide piece 62 that extends from one end of the gutter fixing piece 61 on the eaves side to below the water and guides rainwater to the eaves gutter 7, and one end of the guide piece 62 on the eaves side protrudes below the water further than the newly installed eaves gutter 2. As shown in the figure, the eaves gutter 7 is a so-called hanging type gutter in which the gutter part 71 that receives rainwater is supported from above by a bracket 72, so that the bracket 72 is not noticeable when looking up at the eaves part, improving the aesthetics of the eaves after renovation. The rainwater guide 6 guides rainwater received from the newly installed roof tiles 3 and eaves accessories 4 to the gutter section 71 using the guide pieces 62, so even if the bracket 72 interferes and widens the gap between the newly installed eaves dripping material 2 and the gutter section 71, it can effectively prevent rainwater from dripping from the gap toward the newly installed fascia material 5.

続いて、勾配屋根の軒先構造１の施工方法について説明する。まず、図７に示すように、既設軒先水切り材Ｘ１を新設軒先水切り材２で被覆するとともに、雨水ガイド６の水切り固定片６１を新設軒先水切り材２の水切り被覆部２１に重ね合わせ、水切り被覆部２１及び水切り固定片６１を新設ビス８で既設軒先水切り材Ｘ１に固定する。そして図８に示すように、新設アスファルトルーフィング１０を既設屋根瓦Ｘ２の上部に配置し、軒先役物４の係止片４３ｂで折曲片２２を覆うとともに被覆片４３ａで既設屋根瓦Ｘ２の軒先側の面Ｘ２ｂを被覆して載置部４１を既設屋根瓦Ｘ２の上部に載置する。このように、被覆片４３ａ及び係止片４３ｂで既設屋根瓦Ｘ２の軒先側の面Ｘ２ｂ、及び折曲片２２を被覆するので、軒先役物４と折曲片２２との間から雨水が浸入することを効果的に防止することができる。 Next, the construction method of the eaves structure 1 of the sloped roof will be described. First, as shown in Figure 7, the existing eaves edge water drainage material X1 is covered with the new eaves edge water drainage material 2, and the water drainage fixing piece 61 of the rainwater guide 6 is overlapped with the water drainage covering part 21 of the new eaves edge water drainage material 2, and the water drainage covering part 21 and the water drainage fixing piece 61 are fixed to the existing eaves edge water drainage material X1 with the new screws 8. Then, as shown in Figure 8, the new asphalt roofing 10 is placed on top of the existing roof tile X2, the bent piece 22 is covered with the engaging piece 43b of the eaves edge accessory 4, and the eaves side surface X2b of the existing roof tile X2 is covered with the covering piece 43a, and the placement part 41 is placed on top of the existing roof tile X2. In this way, the covering piece 43a and the locking piece 43b cover the eaves side surface X2b of the existing roof tile X2 and the folded piece 22, so rainwater can be effectively prevented from entering between the eaves accessory 4 and the folded piece 22.

続いて図９に示すように、断熱材９の上面を新設屋根瓦３の被覆部３１の下面に両面テープなどで固着し、新設アスファルトルーフィング１０の上に断熱材９及び新設屋根瓦３を水下から順に屋根勾配に沿って設置する。新設屋根瓦３を設置する際は、まず最も水下に配置される新設屋根瓦３の瓦係止片３２ｂを軒先役物４の軒先係止溝４２ｂに引掛け、断熱材９を新設アスファルトルーフィング１０に載置し、新設屋根瓦３の水上側引掛け片３３の一端部を既設屋根瓦Ｘ２に新設ビス８で固定する。次に、水上側に配置する新設屋根瓦３の瓦係止片３２ｂを、先ほど設置した新設屋根瓦３の瓦係止溝３３ａに嵌め込んで係止し、水上側引掛け片３３（図示せず）を既設屋根瓦Ｘ２に固定する。同様の手順で水下から水上へ向けて屋根面全体に新設屋根瓦３を設置する。 Next, as shown in FIG. 9, the upper surface of the insulating material 9 is fixed to the lower surface of the covering portion 31 of the new roof tile 3 with double-sided tape or the like, and the insulating material 9 and the new roof tile 3 are installed on the new asphalt roofing 10 along the roof slope in order from below the water. When installing the new roof tile 3, first, the tile locking piece 32b of the new roof tile 3 that is to be placed most below the water is hooked into the eaves locking groove 42b of the eaves accessory 4, the insulating material 9 is placed on the new asphalt roofing 10, and one end of the above-water side hooking piece 33 of the new roof tile 3 is fixed to the existing roof tile X2 with a new screw 8. Next, the tile locking piece 32b of the new roof tile 3 to be placed above the water is fitted and locked into the tile locking groove 33a of the new roof tile 3 that was just installed, and the above-water side hooking piece 33 (not shown) is fixed to the existing roof tile X2. Using the same procedure, the new roof tiles 3 are installed on the entire roof surface from below the water to above the water.

次に図３に示すように、新設鼻隠し材５の第１被覆部５１を新設軒先水切り材２の垂下部２４及び既設鼻隠し材Ｘ３の固定部Ｘ３ａに重ね合わせ、新設鼻隠し材５で既設鼻隠し材Ｘ３全体を被覆して新設ビス８（図示せず）で第１被覆部５１を母屋Ｘ４に固定する。このように新設鼻隠し材５で新設軒先水切り材２の垂下部２４を被覆することによって新設軒先水切り材２と新設鼻隠し材５との間から雨水が侵入することを効果的に防止できる。また新設の軒先部材を３つのパーツに分けているため、既設軒先部材にフィットさせやすく、施工性を向上させることができる。そして最後に、軒樋７のブラケット７２を図外の固定金具で新設鼻隠し材５の第１被覆部５１に固定し、樋部７１を所定の位置に設置して勾配屋根の軒先構造１を完成させる。 Next, as shown in FIG. 3, the first covering portion 51 of the new fascia material 5 is overlapped with the hanging portion 24 of the new eaves water-repellent material 2 and the fixed portion X3a of the existing fascia material X3, the entire existing fascia material X3 is covered with the new fascia material 5, and the first covering portion 51 is fixed to the main roof X4 with the new screw 8 (not shown). By covering the hanging portion 24 of the new eaves water-repellent material 2 with the new fascia material 5 in this way, it is possible to effectively prevent rainwater from entering between the new eaves water-repellent material 2 and the new fascia material 5. In addition, since the new eaves member is divided into three parts, it is easy to fit the existing eaves member, and workability can be improved. Finally, the bracket 72 of the eaves gutter 7 is fixed to the first covering portion 51 of the new fascia material 5 with a fixing bracket not shown in the figure, and the gutter portion 71 is installed in the specified position to complete the eaves structure 1 of the sloped roof.

このように、本願の勾配屋根の軒先構造１は、新設軒先水切り材２で既設軒先水切り材Ｘ１を被覆した後、軒先役物４の水下側の一端部で既設屋根瓦Ｘ２の軒先側の面Ｘ２ａ、及び新設軒先水切り材２の上端部を被覆し、さらに新設鼻隠し材５で既設鼻隠し材Ｘ３及び新設軒先水切り材２の下端部を被覆するので、新設軒先水切り材２と軒先役物４との間、及び新設軒先水切り材２と新設鼻隠し材５との間から雨水が浸入することを効果的に防止することができる。そして、雨水ガイド６と上吊り式の軒樋７とを組み合わせることによって、改修後の軒先廻りの美観性を好ましいものとすることができる。 In this way, the eaves structure 1 of the sloped roof of the present application covers the existing eaves drainage material X1 with the new eaves drainage material 2, then covers the eaves side surface X2a of the existing roof tile X2 and the upper end of the new eaves drainage material 2 with one end of the underwater side of the eaves fitting 4, and further covers the lower end of the existing eaves drainage material X3 and the new eaves drainage material 2 with the new fascia material 5, so that it is possible to effectively prevent rainwater from entering between the new eaves drainage material 2 and the eaves fitting 4, and between the new eaves drainage material 2 and the new fascia material 5. And by combining the rainwater guide 6 and the overhead-hung eaves gutter 7, the aesthetic appearance of the eaves area after renovation can be made favorable.

本発明の実施の形態は上述の形態に限ることなく、本発明の思想の範囲を逸脱しない範囲で適宜変更することができる。 The embodiment of the present invention is not limited to the above-mentioned embodiment, and can be modified as appropriate without departing from the scope of the concept of the present invention.

本発明に係る勾配屋根の軒先構造は、勾配屋根の軒先部分を改修する際に好適に使用することができる。 The eaves structure of a sloped roof according to the present invention can be suitably used when renovating the eaves portion of a sloped roof.

１ 勾配屋根の軒先構造
２ 新設軒先水切り材
２１ 軒先被覆部
２１ａ 軒先被覆部の軒先側の面（新設軒先水切り材の軒先側の面）
２２ 折曲片
２４ 垂下部（新設軒先水切り材の下端部）
３ 新設屋根瓦
４ 軒先役物
５ 新設鼻隠し材
５１ 第１被覆部の軒先側の面（新設鼻隠し材の軒先側の面）
６ 雨水ガイド
７ 軒樋
Ｘ１ 既設軒先水切り材
Ｘ２ 既設屋根瓦
Ｘ２ａ 既設屋根瓦の上面
Ｘ２ｂ 既設屋根瓦の軒先側の面 1 Eaves structure of a sloped roof 2 Newly installed eaves water-repellent material 21 Eaves covering part 21a Eaves side surface of the eaves covering part (eaves side surface of the newly installed eaves water-repellent material)
22 Bent piece 24 Hanging part (lower end of newly installed eaves edge water drainage material)
3 New roof tile 4 Eaves accessory 5 New fascia material 51 Eaves side surface of the first covering part (eaves side surface of the new fascia material)
6 Rainwater guide 7 Eaves gutter X1 Existing eaves drainage material X2 Existing roof tile X2a Top surface of existing roof tile X2b Eaves side surface of existing roof tile

Claims (4)

最も水下の母屋よりも軒先側に設置された既設軒先水切り材を被覆する新設軒先水切り材と、
最も水下に位置する既設屋根瓦の上面に固定され、且つ、最も水下に配置される新設屋根瓦を係止する軒先役物と、
前記母屋の軒先側の面に固定された既設鼻隠し材を被覆する新設鼻隠し材と、を備え、
前記新設軒先水切り材は、前記既設軒先水切り材を被覆し、水下側へ突出するＶ字型状の水切り被覆部と、当該水切り被覆部の上端部を軒先側へ折り曲げてなる折曲片と、前記水切り被覆部の前記母屋側の一端部を水上側へ延出させた延出部と、当該延出部の前記母屋側の一端から下方へ延びる垂下部と、を有しており、
前記軒先役物は、最も水下に位置する前記既設屋根瓦の軒先側の面、及び前記折曲片を被覆し、
前記垂下部は、前記新設鼻隠し材で被覆されることを特徴とする勾配屋根の軒先構造。 A new eaves edge water drainage material that covers the existing eaves edge water drainage material installed on the eaves side of the main building below the water ,
A roof edge accessory that is fixed to the top surface of the existing roof tile located closest to the water and that engages the new roof tile located closest to the water;
A new fascia material that covers an existing fascia material fixed to the eaves side surface of the main building ,
The newly installed eaves flashing material covers the existing eaves flashing material and has a V-shaped flashing covering portion that protrudes below the water, a folded piece formed by bending an upper end of the flashing covering portion toward the eaves side , an extension portion that extends one end of the flashing covering portion on the main building side above the water, and a hanging portion that extends downward from one end of the extension portion on the main building side,
The eaves accessory covers the eaves side surface of the existing roof tile located closest to the water surface and the bent piece ,
A sloped roof eaves structure , characterized in that the hanging portion is covered with the newly installed fascia material . 前記新設鼻隠し材は、軒先側の面に上吊り式の軒樋が固定されることを特徴とする請求項１に記載の勾配屋根の軒先構造。 The eaves structure of a sloped roof as described in claim 1, characterized in that the newly installed fascia material has a suspended eaves gutter fixed to the eaves side surface. 前記新設軒先水切り材は、軒先側の面に水下側へ突出する板状の雨水ガイドを固定されることを特徴とする請求項２に記載の勾配屋根の軒先構造。 The eaves structure of a sloped roof as described in claim 2 , characterized in that the newly installed eaves drip-water material has a plate-shaped rainwater guide fixed to the eaves side surface thereof, the plate-shaped rainwater guide protruding toward the water below. 請求項１から請求項３のいずれかに記載の勾配屋根の軒先構造を用いた勾配屋根の軒先施工方法であって、
前記新設軒先水切り材で既設軒先水切り材を被覆し、
前記軒先役物を最も水下に位置する既設屋根瓦の上面に固定するとともに、水下側の一端部で前記既設屋根瓦の軒先側の面、及び前記折曲片を被覆し、
前記新設鼻隠し材で既設鼻隠し材及び前記垂下部を被覆することを特徴とする勾配屋根の軒先施工方法。 A method for constructing a sloped roof using the sloped roof eaves structure according to any one of claims 1 to 3 ,
The existing eaves edge water drainage material is covered with the newly installed eaves edge water drainage material,
The eaves accessory is fixed to the upper surface of the existing roof tile located furthest below the water, and the eaves side surface of the existing roof tile and the bent piece are covered with one end of the underwater side,
A method for constructing the eaves of a sloped roof, characterized in covering the existing fascia material and the hanging portion with the newly installed fascia material.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007309074A (en) 2006-05-20 2007-11-29 Chuo Co Ltd Eaves edge member and remodeling structure therewith
JP2007314946A (en) 2006-05-23 2007-12-06 Sekisui Yane System Kk Method for double roofing and draining member used therefor
JP2008050919A (en) 2006-08-28 2008-03-06 Matsushita Electric Works Ltd Mounting structure of newly-provided water dripping member on existing water dripping member of eaves
JP3145631U (en) 2008-08-01 2008-10-16 ルーフシステム株式会社 Repair structure of asbestos slate roof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3319908B2 (en) * 1995-05-15 2002-09-03 松下電工株式会社 Renovation structure of eaves

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007309074A (en) 2006-05-20 2007-11-29 Chuo Co Ltd Eaves edge member and remodeling structure therewith
JP2007314946A (en) 2006-05-23 2007-12-06 Sekisui Yane System Kk Method for double roofing and draining member used therefor
JP2008050919A (en) 2006-08-28 2008-03-06 Matsushita Electric Works Ltd Mounting structure of newly-provided water dripping member on existing water dripping member of eaves
JP3145631U (en) 2008-08-01 2008-10-16 ルーフシステム株式会社 Repair structure of asbestos slate roof

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