JP5618121B2 - Roof structure and waterproof base material - Google Patents

Roof structure and waterproof base material Download PDF

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JP5618121B2
JP5618121B2 JP2009091176A JP2009091176A JP5618121B2 JP 5618121 B2 JP5618121 B2 JP 5618121B2 JP 2009091176 A JP2009091176 A JP 2009091176A JP 2009091176 A JP2009091176 A JP 2009091176A JP 5618121 B2 JP5618121 B2 JP 5618121B2
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corrugated
plate
rafter
roof
corrugated plate
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JP2010242349A (en
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福田　和宏
和宏 福田
果那子 信澤
果那子 信澤
義雄 中井
義雄 中井
勧 菊池
勧 菊池
正也 江原
正也 江原
昭範 神谷
昭範 神谷
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Takiron Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/10—Photovoltaic [PV]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Description

本発明は、合成樹脂製の波板を屋根下葺防水材として用いた屋根構造に関し、特に耐久性と軒先から棟へ空気が流れる通気性（８ｍｍ以上）を有するものに関する。   The present invention relates to a roof structure using corrugated sheets made of synthetic resin as a roof underwater waterproofing material, and particularly relates to a structure having durability and air permeability (8 mm or more) through which air flows from the eaves to the ridge.

家屋の屋根構造に用いる屋根下葺防水材として、アスファルトルーフィングとゴムアスファルトルーフィングや、透湿防水シート（野地から垂直方向に湿気をシート上に通過させる透湿性を持った防水シート）がよく知られている（例えば、特許文献１，２参照）。このような屋根下葺防水材は低コストであり多用されている。
特開２００７−１２６９５３号公報 特開２００７−２２３０４６号公報 Asphalt roofing and rubber asphalt roofing and moisture-permeable waterproof sheets (waterproof sheets with moisture permeability that allow moisture to pass vertically over the field) are well known as waterproofing materials for roof roofs used in the roof structure of houses. (For example, see Patent Documents 1 and 2). Such a roof underwater waterproofing material is low cost and widely used.
JP 2007-126953 A JP 2007-223046 A

上述した屋根下葺防水材を用いた屋根構造では、次のような問題があった。すなわち、現在の住宅は長寿命化が推進されているため、その寿命が６０〜１００年とも言われているのに対し、アスファルトルーフィングやゴムアスファルトルーフィングは熱劣化が起きやすく、３０年もしないうちに劣化して収縮し破れてしまう。また、防水性は優れているものの、野地の湿気を排出する透湿性はない。そのため、野地で結露が起きやすく、野地の劣化も進行するという問題があった。   The roof structure using the above-described roof underwater waterproofing material has the following problems. In other words, the current life is being promoted to extend its life, so it is said that its life is 60-100 years, whereas asphalt roofing and rubber asphalt roofing are prone to thermal degradation, and within 30 years. Degraded to shrink and tear. In addition, although it has excellent waterproof properties, it does not have moisture permeability that discharges moisture in the field. For this reason, there is a problem that condensation easily occurs in the field and the deterioration of the field progresses.

一方、透湿透湿防水シートは、シートの熱劣化と野地の劣化を防ぐための改良が加えられ、耐久性に関しては十分であるが、防水性に問題がある。すなわち、釘穴シール性の改善がいろいろ検討されているが、防水シートを止め付けるためのタッカー（針）に対する止水性はなかなか改善されていない。   On the other hand, the moisture-permeable and moisture-permeable waterproof sheet is improved in order to prevent thermal deterioration of the sheet and deterioration of the field, and is sufficient in terms of durability, but has a problem in waterproofness. That is, various improvements in nail hole sealing properties have been studied, but the water-stopping property against a tucker (needle) for fastening the waterproof sheet has not been improved.

そこで本発明は、十分な耐久性及び防水性を備えた屋根構造を提供することを目的としている。   Accordingly, an object of the present invention is to provide a roof structure having sufficient durability and waterproofness.

前記課題を解決し目的を達成するために、本発明の屋根構造及び防水下地材は次のように構成されている。   In order to solve the problems and achieve the object, the roof structure and waterproof base material of the present invention are configured as follows.

垂木と、この垂木に下面が支持された野地板と、この野地板の上に配置され、複数枚の波板がその一部を重ね合わせて配置された波板構造体と、この波板構造体の上に配置された桟木と、この桟木の上に配置された屋根材と、上記波板構造体の波上部を貫通して上記野地板、上記垂木の順で打たれた固定釘と、上記屋根材から上記桟木に打たれた締結釘とを備え、上記波板には、他の波板との間に隙間を形成する突起部が形成されていることを特徴とする。   A rafter, a base plate whose bottom surface is supported by the rafter, a corrugated plate structure that is arranged on the base plate, and a plurality of corrugated plates are arranged to overlap each other, and the corrugated plate structure A pier arranged on the body, a roofing material arranged on the pier, a fixed nail pierced in the order of the field plate, the rafter through the wave top of the corrugated structure, A fastening nail struck from the roof material to the pier, and the corrugated sheet is provided with a protrusion that forms a gap with another corrugated sheet.

垂木と、この垂木に下面が支持された野地板と、この野地板の上に配置され、複数枚の波板がその一部を重ね合わせて配置された波板構造体と、この波板の上に配置された金属屋根材と、この金属屋根材から上記波板の波上部を貫通して上記野地板、上記垂木の順で打たれた固定釘とを備え、上記波板には、他の波板との間に隙間を形成する突起部が形成されていることを特徴とする。   A rafter, a field plate whose bottom surface is supported by the rafter, a corrugated plate structure disposed on the field plate, and a plurality of corrugated sheets disposed on top of each other, and the corrugated plate A metal roofing material disposed above, and a fixed nail that passes through the wave top of the corrugated sheet from the metal roofing material and is struck in the order of the rafters. A projection is formed to form a gap with the corrugated plate.

垂木と、この垂木に下面が支持され、複数枚の波板がその一部を重ね合わせて配置された波板構造体と、この波板構造体の上に配置された桟木と、この桟木の上に配置された屋根材と、上記波板構造体の波上部を貫通して上記垂木に打たれた固定釘と、上記屋根材から上記桟木に打たれた締結釘とを備え、上記波板には、他の波板との間に隙間を形成する突起部が形成されていることを特徴とする。   A rafter, a corrugated plate structure in which a bottom surface is supported by the rafter, and a plurality of corrugated sheets are arranged to overlap each other, a pier arranged on the corrugated sheet structure, and the pier The corrugated plate comprising: a roofing material disposed on the top; a fixed nail that penetrates the wave top of the corrugated plate structure and is struck by the rafter; and a fastening nail that is struck by the roof material from the roof. Is characterized in that a protrusion is formed to form a gap with another corrugated plate.

垂木と、この垂木に下面が支持され、複数枚の波板がその一部を重ね合わせて配置された波板構造体と、この波板の上に配置された金属屋根材と、この金属屋根材から上記波板の波上部を貫通して上記垂木に打たれた固定釘とを備え、上記波板には、他の波板との間に隙間を形成する突起部が形成されていることを特徴とする。   A rafter, a corrugated sheet structure in which a bottom surface is supported by the rafter, and a plurality of corrugated sheets are arranged to overlap each other, a metal roofing material disposed on the corrugated sheet, and the metal roof A fixing nail that penetrates the corrugated portion of the corrugated plate and is struck by the rafters, and the corrugated plate has a protrusion that forms a gap with another corrugated plate. It is characterized by.

垂木と、この垂木に下面が支持された野地板と、この野地板の上に配置され、複数枚の波板がその一部を重ね合わせて配置された波板構造体と、この波板の上に配置された太陽光発電パネルと、この太陽光発電パネルから上記波板の波上部を貫通して上記野地板、上記垂木の順で打たれた固定釘とを備え、上記波板には、他の波板との間に隙間を形成する突起部が形成されていることを特徴とする。   A rafter, a field plate whose bottom surface is supported by the rafter, a corrugated plate structure disposed on the field plate, and a plurality of corrugated sheets disposed on top of each other, and the corrugated plate A solar power generation panel disposed on the top, and a fixed nail that is pierced in this order from the solar power generation panel through the wave top of the corrugated sheet and the rafters. In addition, a protruding portion that forms a gap with another corrugated plate is formed.

垂木と、この垂木に下面が支持され、複数枚の波板がその一部を重ね合わせて配置された波板構造体と、この波板の上に配置された太陽光発電パネルと、この太陽光発電パネルから上記波板の波上部を貫通して上記垂木に打たれた固定釘とを備え、上記波板には、他の波板との間に隙間を形成する突起部が形成されていることを特徴とする。   A rafter, a corrugated plate structure in which a bottom surface is supported by the rafter, and a plurality of corrugated sheets are arranged to overlap each other, a solar power generation panel disposed on the corrugated sheet, and the solar panel A fixing nail that penetrates the wave top of the corrugated plate from the photovoltaic panel and is struck by the rafter, and the corrugated plate has a protrusion that forms a gap with another corrugated plate. It is characterized by being.

複数枚の波板がその一部を重ね合わせて配置された波板構造体と、上記波板構造体の波上部を貫通する固定釘とを備え、上記波板には、他の波板との間に隙間を形成する突起部が形成されていることを特徴とする。   A plurality of corrugated plates, each of which includes a corrugated plate structure and a fixed nail that penetrates the wave upper portion of the corrugated plate structure. Protrusions that form gaps are formed between the two.

本発明によれば、十分な耐久性、防水性及び通気性を備えることが可能となる。   According to the present invention, sufficient durability, waterproofness and air permeability can be provided.

図１は本発明の第１の実施の形態に係る屋根構造１を示す断面図、図２〜図４は同屋根構造１の施工手順を示す断面図である。また、図５は屋根構造１に組み込まれた波板構造体１２を一部切欠して示す斜視図、図６は波方向に沿って切断した断面図、図７は垂木方向に沿って切断した断面図である。   FIG. 1 is a cross-sectional view showing a roof structure 1 according to a first embodiment of the present invention, and FIGS. 2 to 4 are cross-sectional views showing a construction procedure of the roof structure 1. 5 is a partially cutaway perspective view showing the corrugated plate structure 12 incorporated in the roof structure 1, FIG. 6 is a cross-sectional view cut along the wave direction, and FIG. 7 is cut along the rafter direction. It is sectional drawing.

屋根構造１は、垂木１０と、この垂木１０に下面が支持された野地板１１と、この野地板１１の上に配置された波板構造体１２と、この波板構造体１２の上に配置された桟木１４と、この桟木１４の上に配置された瓦（屋根材）１５とを備えている。これら垂木１０、野地板１１、波板構造体１２、桟木１４、瓦１５は、固定釘２０，２１及び締結釘２２により固定されている。固定釘２０は、波板構造体１２、野地板１１、垂木１０の順で打たれ、固定釘２１は、桟木１４、波板構造体１２、野地板１１、垂木１０の順で打たれ、締結釘２２は瓦１５から桟木１４に向かって打たれている。   The roof structure 1 includes a rafter 10, a field plate 11 whose bottom surface is supported by the rafter 10, a corrugated structure 12 disposed on the field plate 11, and an arrangement on the corrugated structure 12. And a tile (roofing material) 15 disposed on the pier 14. The rafter 10, the field plate 11, the corrugated plate structure 12, the crosspiece 14, and the roof tile 15 are fixed by fixing nails 20 and 21 and a fastening nail 22. The fixed nail 20 is struck in the order of the corrugated plate structure 12, the base plate 11, and the rafter 10, and the fixed nail 21 is struck in the order of the pier 14, the corrugated plate structure 12, the base plate 11, and the rafter 10, and fastened. The nail 22 is struck from the roof tile 15 toward the pier 14.

野地板１１の最上部には、換気スリット１１ａが形成され、この換気スリット１１ａに跨るようにして棟金具３０が設けられ、この棟金具３０により水平方向に配置された垂木３１が支持されている。垂木３１はその上側から冠瓦３２により覆われている。また、図１中３３は空気流通部材を示している。   A ventilation slit 11a is formed at the top of the base plate 11, and a ridge fitting 30 is provided so as to straddle the ventilation slit 11a, and a rafter 31 arranged in the horizontal direction is supported by the ridge fitting 30. . The rafter 31 is covered with a crown tile 32 from above. Moreover, 33 in FIG. 1 has shown the air distribution member.

波板構造体１２は、合成樹脂製（ポリ塩化ビニル樹脂やポリカーボネート樹脂）の波板１３を複数用いて、その一部を重ね合わせた構造となっている。波板１３は、波上部１３ａと波下部１３ｂとが交互に、かつ、一定の間隔で形成されている。また、波上部１３ａと波下部１３ｂとが並ぶ波方向は、垂木１０の延びる方向（垂木方向）と直交して配置されている。   The corrugated plate structure 12 has a structure in which a plurality of corrugated plates 13 made of synthetic resin (polyvinyl chloride resin or polycarbonate resin) are used and a part thereof is overlapped. The corrugated plate 13 is formed with wave upper portions 13a and wave lower portions 13b alternately and at regular intervals. Further, the wave direction in which the wave upper portion 13a and the wave lower portion 13b are arranged is arranged orthogonal to the direction in which the rafter 10 extends (the rafter direction).

なお、固定釘２０，２１は、図２〜図４に示すように波上部１３ａを貫通して打ち込まれている。   The fixed nails 20 and 21 are driven through the wave upper portion 13a as shown in FIGS.

図５に示すように、波板１３の垂木方向の端部には、波下部１３ｂを塞ぐように返り部（突起部）１３ｃが形成されている。このため、波板１３同士を重ね合わせると図６，図７に示すように、下段の波板１３と上段の波板１３との間に隙間が生じ、通気路Ｐが形成される。   As shown in FIG. 5, a return portion (projection portion) 13c is formed at the end portion of the corrugated plate 13 in the rafter direction so as to close the wave lower portion 13b. For this reason, when the corrugated plates 13 are overlapped with each other, a gap is formed between the lower corrugated plate 13 and the upper corrugated plate 13 as shown in FIGS.

このような屋根構造１は、次のようにして施工される。最初に、図２に示すように、垂木１０上に野地板１１を配置し、その上に波板構造体１２を敷く。そして、固定釘２０にて波板構造体１２の波上部１３ａから野地板１１を貫通させ、垂木１０に向かって打ち込む。次に、図３に示すように、桟木１４を配置し、固定釘２１にて桟木１４の上から波板構造体１２の波上部１３ａ及び野地板１１を貫通させ、垂木１０に向かって打ち込む。次に、図４に示すように、瓦１５を配置し、締結釘２２により、瓦１５と桟木１４とを固定する。   Such a roof structure 1 is constructed as follows. First, as shown in FIG. 2, the field board 11 is arrange | positioned on the rafter 10, and the corrugated board structure 12 is spread | laid on it. Then, the base plate 11 is penetrated from the wave top 13 a of the corrugated plate structure 12 with the fixed nail 20 and driven toward the rafter 10. Next, as shown in FIG. 3, the pier 14 is arranged, the fixed nail 21 is passed through the undulated portion 13 a of the corrugated plate structure 12 and the field plate 11 from above the pier 14, and driven toward the rafter 10. Next, as shown in FIG. 4, the roof tile 15 is arranged, and the roof tile 15 and the crosspiece 14 are fixed by the fastening nails 22.

このように構成された屋根構造１では、波板構造体１２の上に瓦１５が配置されるため、合成樹脂製の波板構造体１２には直射日光は当たらず、経年劣化が少なくなる。また、波板構造体１２には固定釘２０，２１を貫通するための孔が形成されるが、その孔は波板構造体１２の波上部１３ａに形成されることになるため、瓦１５と波板構造体１２との間に浸入した水滴は、波上部１３ａに流入することがない。すなわち、水滴は波板構造体１２の波下部１３ｂに溜まり、軒先側に流れ落ちることになり、防水のためのルーフィングが別途不要となる。すなわち、波板構造体１２は屋根下葺材としての機能を有することとなり、十分な耐候性と低コスト性を有することになる。   In the roof structure 1 configured as described above, the roof tiles 15 are disposed on the corrugated plate structure 12, and therefore the corrugated plate structure 12 made of synthetic resin is not exposed to direct sunlight, and deterioration over time is reduced. Further, the corrugated plate structure 12 is formed with holes for penetrating the fixing nails 20 and 21, and the holes are formed in the wave upper portion 13 a of the corrugated plate structure 12, so Water droplets that have entered between the corrugated plate structure 12 do not flow into the wave upper portion 13a. That is, water droplets accumulate in the wave lower part 13b of the corrugated plate structure 12, and flow down to the eaves side, so that roofing for waterproofing is not required separately. That is, the corrugated sheet structure 12 has a function as a roof underglazing material, and has sufficient weather resistance and low cost.

一方、波板構造体１２はその構造上通気路Ｐが形成されているため、野地板１１と瓦１５の間の換気を十分に行うことができる。特に、波上部１３ａと波下部１３ｂとが並ぶ波方向を垂木１０の延びる方向と直交して配置することで、通気路Ｐが軒先から棟側に向かって形成されることとなり、図１中Ｆに示すように換気を円滑に行うことができる。このため、野地板１１の湿気を野地板１１と波板構造体１２との空間から棟から排湿できる、野地板１１での結露を防止でき、野地板１１の耐久性を向上させることができる。同様にして瓦１５下の熱気や雨水等の湿気を棟から排出できる。このため、断熱性も向上させることができる。   On the other hand, since the corrugated plate structure 12 is formed with the ventilation path P due to its structure, ventilation between the field plate 11 and the roof tile 15 can be sufficiently performed. In particular, by arranging the wave direction in which the wave upper part 13a and the wave lower part 13b are arranged perpendicularly to the direction in which the rafter 10 extends, the air passage P is formed from the eaves to the ridge side. As shown in the figure, ventilation can be performed smoothly. For this reason, the moisture of the field board 11 can be dehumidified from the ridge from the space between the field board 11 and the corrugated plate structure 12, condensation on the field board 11 can be prevented, and the durability of the field board 11 can be improved. . Similarly, moisture such as hot air and rainwater under the roof tile 15 can be discharged from the building. For this reason, heat insulation can also be improved.

上述したように、本実施の形態に係る屋根構造１によれば、合成樹脂製の波板構造体１２を屋根下葺材として用いることで十分な耐久性を有しつつ、防水性を維持し、また野地板１１と瓦１５との間（屋根材の下部）の換気を行うことが可能となる。さらに、波板１３同士の間にも通気路Ｐが形成されるため、波板構造体１２の通気量を十分に確保することが可能となる。   As described above, according to the roof structure 1 according to the present embodiment, the waterproof structure is maintained while having sufficient durability by using the corrugated sheet structure 12 made of synthetic resin as a roof underlaying material, Moreover, it becomes possible to ventilate between the field board 11 and the tile 15 (lower part of a roofing material). Furthermore, since the ventilation path P is also formed between the corrugated plates 13, it is possible to ensure a sufficient amount of ventilation of the corrugated plate structure 12.

図８は上述した屋根構造１に組み込まれた波板構造体１２の変形例に係る波板構造体１２Ａを一部切欠して示す斜視図、図９は波方向に沿って切断した断面図、図１０は垂木方向に沿って切断した断面図である。なお、図８〜１０において、図５〜７と同一機能部分には同一符号を付し、その詳細な説明は省略する。   FIG. 8 is a perspective view showing a partially cut corrugated sheet structure 12A according to a modification of the corrugated sheet structure 12 incorporated in the roof structure 1 described above, and FIG. 9 is a cross-sectional view cut along the wave direction. FIG. 10 is a cross-sectional view taken along the rafter direction. 8 to 10, the same functional parts as those in FIGS. 5 to 7 are denoted by the same reference numerals, and detailed description thereof is omitted.

図８に示すように、波板構造体１２Ａは、合成樹脂製の波板１３を複数用いて、その一部を重ね合わせた構造となっている。波板１３の波下部１３ｂには、図中上方に向けて突起部１３ｄが形成されている。このため、波板１３同士を重ね合わせると図９，図１０に示すように、下段の波板１３と上段の波板１３との間に隙間が生じ、通気路Ｐが形成される。   As shown in FIG. 8, the corrugated plate structure 12 </ b> A has a structure in which a plurality of corrugated plates 13 made of synthetic resin are used and a part thereof is overlapped. A protruding portion 13d is formed on the wave lower portion 13b of the corrugated plate 13 toward the upper side in the figure. For this reason, when the corrugated plates 13 are overlapped with each other, a gap is created between the lower corrugated plate 13 and the upper corrugated plate 13 as shown in FIGS.

したがって、本変形例においても、上述した屋根構造１において、十分な通気量を確保することができる。   Therefore, also in the present modification, a sufficient air flow rate can be secured in the roof structure 1 described above.

図１１は上述した屋根構造１に組み込まれた波板構造体１２の変形例に係る波板構造体１２Ｂを一部切欠して示す斜視図、図１２は波方向に沿って切断した断面図、図１３は垂木方向に沿って切断した断面図である。なお、図１１〜１３において、図５〜１０と同一機能部分には同一符号を付し、その詳細な説明は省略する。   FIG. 11 is a perspective view of a corrugated plate structure 12B according to a modification of the corrugated plate structure 12 incorporated in the roof structure 1 described above, with a part cut away, and FIG. 12 is a cross-sectional view cut along the wave direction. FIG. 13 is a cross-sectional view taken along the rafter direction. 11-13, the same code | symbol is attached | subjected to the same function part as FIGS. 5-10, and the detailed description is abbreviate | omitted.

図１１に示すように、波板構造体１２Ｂは、合成樹脂製の波板１３を複数用いて、その一部を重ね合わせた構造となっている。波板１３の垂木方向の端部には、波下部１３ｂを塞ぐように返り部（突起部）１３ｃが形成されるとともに、波板１３の波下部１３ｂには上方に向けて突起部１３ｄが形成されている。このため、波板１３同士を重ね合わせると図１２，図１３に示すように、下段の波板１３と上段の波板１３との間に隙間が生じ、通気路Ｐが形成される。   As shown in FIG. 11, the corrugated plate structure 12 </ b> B has a structure in which a plurality of corrugated plates 13 made of synthetic resin are used and a part thereof is overlapped. At the end of the corrugated sheet 13 in the rafter direction, a return part (projection part) 13c is formed so as to block the corrugated part 13b, and a projecting part 13d is formed upward on the corrugated part 13b of the corrugated sheet 13. Has been. For this reason, when the corrugated plates 13 are overlapped with each other, a gap is created between the lower corrugated plate 13 and the upper corrugated plate 13 as shown in FIGS.

したがって、本変形例においても、上述した屋根構造１において、十分な通気量を確保することができる。   Therefore, also in the present modification, a sufficient air flow rate can be secured in the roof structure 1 described above.

図１４は上述した屋根構造１に組み込まれた波板構造体１２の変形例に係る波板構造体１２Ｃを一部切欠して示す斜視図、図１５は波方向に沿って切断した断面図、図１６は垂木方向に沿って切断した断面図である。なお、図１４〜１６において、図８〜１０と同一機能部分には同一符号を付し、その詳細な説明は省略する。   FIG. 14 is a perspective view of a corrugated plate structure 12C according to a modification of the corrugated plate structure 12 incorporated in the roof structure 1 described above, partially cut away, and FIG. 15 is a cross-sectional view cut along the wave direction. FIG. 16 is a cross-sectional view taken along the rafter direction. 14-16, the same code | symbol is attached | subjected to the same function part as FIGS. 8-10, and the detailed description is abbreviate | omitted.

図１４に示すように、波板構造体１２Ａは、合成樹脂製の波板１３を複数用いて、その一部を重ね合わせた構造となっている。波板１３の波下部１３ｂには、図中上方に向けて突起部１３ｄ，１３ｅが形成されている。このため、波板１３同士を重ね合わせると図１５，図１６に示すように、下段の波板１３と上段の波板１３との間に隙間が生じ、通気路Ｐが形成される。   As shown in FIG. 14, the corrugated plate structure 12 </ b> A has a structure in which a plurality of corrugated plates 13 made of synthetic resin are used and a part thereof is overlapped. Projecting portions 13d and 13e are formed on the wave lower portion 13b of the corrugated plate 13 upward in the drawing. Therefore, when the corrugated plates 13 are overlapped with each other, a gap is formed between the lower corrugated plate 13 and the upper corrugated plate 13 as shown in FIGS.

したがって、本変形例においても、上述した屋根構造１において、波板１３同士の重ね部からさらに十分な通気量を確保することができる。また、大風のときに波板１３上で進入した風によって逆流する雨を止める水返しの機能も有している。   Therefore, also in this modified example, in the roof structure 1 described above, it is possible to secure a further sufficient air flow rate from the overlapping portion of the corrugated sheets 13. In addition, it also has a function of returning water that stops rain that flows backward due to the wind that has entered on the corrugated plate 13 during a strong wind.

図１７は本発明の第２の実施の形態に係る屋根構造１Ａの要部を示す斜視図、図１８は同屋根構造１Ａの断面図である。図１７及び図１８において図１〜図４と同一機能部分には同一符号を付し、その詳細な説明は省略する。屋根構造１Ａにおいては、屋根材として金属瓦（金属屋根材）４０を用いている。   FIG. 17 is a perspective view showing the main part of the roof structure 1A according to the second embodiment of the present invention, and FIG. 18 is a sectional view of the roof structure 1A. 17 and 18, the same functional parts as those in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted. In the roof structure 1A, a metal tile (metal roof material) 40 is used as a roof material.

金属瓦４０を用いた場合においては、桟木１４を用いず、金属瓦４０に係合部４１を形成し、その係合部４１に上段の金属瓦４０の下端４２を引っ掛けて係止することで金属瓦４０同士を固定している。このため、締結釘は不要となる。なお、固定釘２１は、金属瓦４０から波板構造体１２の波上部１３ａを貫通して野地板１１、垂木１０の順で打たれている。この場合であっても、屋根構造１と同様の効果を得ることができる。   When the metal roof tile 40 is used, the engaging portion 41 is formed on the metal roof tile 40 without using the pier 14, and the lower end 42 of the upper metal roof tile 40 is hooked and locked to the engaging portion 41. The metal roof tiles 40 are fixed. For this reason, a fastening nail becomes unnecessary. The fixed nail 21 is pierced from the metal roof tile 40 through the corrugated portion 13 a of the corrugated plate structure 12 in the order of the base plate 11 and the rafter 10. Even in this case, the same effect as that of the roof structure 1 can be obtained.

図１９〜図２１は本発明の第３の実施の形態に係る屋根構造１Ｂの施工手順を示す断面図である。図１９〜図２１において、図１〜４と同一機能部分には同一符号を付し、その詳細な説明は省略する。   19-21 is sectional drawing which shows the construction procedure of the roof structure 1B which concerns on the 3rd Embodiment of this invention. 19 to 21, the same functional parts as those in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted.

屋根構造１Ｂは、垂木１０と、この垂木１０に下面が支持された波板構造体１２と、この波板構造体１２の上に配置された桟木１４と、この桟木１４の上に配置された瓦（屋根材）１５とを備えている。これら垂木１０、波板構造体１２、桟木１４、瓦１５は、固定釘２０，２１及び締結釘２２により固定されている。固定釘２０は、波板構造体１２、垂木１０の順で打たれ、固定釘２１は、桟木１４、波板構造体１２、垂木１０の順で打たれ、締結釘２２は瓦１５から桟木１４に向かって打たれている。   The roof structure 1B includes a rafter 10, a corrugated sheet structure 12 having a bottom surface supported by the rafter 10, a pier 14 disposed on the corrugated sheet structure 12, and the pier 14 A tile (roof material) 15 is provided. The rafter 10, the corrugated plate structure 12, the crosspiece 14, and the roof tile 15 are fixed by fixing nails 20 and 21 and fastening nails 22. The fixed nail 20 is struck in the order of the corrugated plate structure 12 and the rafter 10, the fixed nail 21 is struck in the order of the pier 14, the corrugated plate structure 12 and the rafter 10, and the fastening nail 22 is struck from the roof tile 15 to the pier 14. It is struck toward.

波板構造体１２の最上部には、換気スリット（不図示）が形成され、この換気スリットに跨るようにして棟金具３０が設けられ、この棟金具３０により水平方向に配置された垂木３１が支持されている。   A ventilation slit (not shown) is formed at the uppermost portion of the corrugated plate structure 12, and a ridge metal fitting 30 is provided so as to straddle the ventilation slit, and a rafter 31 arranged horizontally by the ridge metal fitting 30 is provided. It is supported.

波板構造体１２は、合成樹脂製（ポリ塩化ビニル樹脂やポリカーボネート樹脂）の波板１３を複数用いて、その一部を重ね合わせた構造となっている。波板１３は、波上部１３ａと波下部１３ｂとが交互に、かつ、一定の間隔で形成されている。また、波上部１３ａと波下部１３ｂとが並ぶ波方向は、垂木１０の延びる方向（垂木方向）と直交して配置されている。   The corrugated plate structure 12 has a structure in which a plurality of corrugated plates 13 made of synthetic resin (polyvinyl chloride resin or polycarbonate resin) are used and a part thereof is overlapped. The corrugated plate 13 is formed with wave upper portions 13a and wave lower portions 13b alternately and at regular intervals. Further, the wave direction in which the wave upper portion 13a and the wave lower portion 13b are arranged is arranged orthogonal to the direction in which the rafter 10 extends (the rafter direction).

なお、固定釘２０，２１は、図１９〜図２１に示すように波上部１３ａを貫通して打ち込まれている。   The fixed nails 20 and 21 are driven through the wave upper portion 13a as shown in FIGS.

このような屋根構造１Ｂは、次のようにして施工される。最初に、図１９に示すように、垂木１０上に波板構造体１２を敷く。そして、固定釘２０にて波板構造体１２の波上部１３ａから垂木１０に向かって打ち込む。次に、図２０に示すように、桟木１４を配置し、固定釘２１にて桟木１４の上から波板構造体１２の波上部１３ａを貫通させ、垂木１０に向かって打ち込む。次に、図２１に示すように、瓦１５を配置し、締結釘２２により、瓦１５と桟木１４とを固定する。   Such a roof structure 1B is constructed as follows. First, as shown in FIG. 19, the corrugated plate structure 12 is laid on the rafter 10. Then, the fixed nail 20 is driven from the wave top 13 a of the corrugated plate structure 12 toward the rafter 10. Next, as shown in FIG. 20, the pier 14 is arranged, the fixed nail 21 is passed through the wave upper portion 13 a of the corrugated plate structure 12 from above the pier 14, and driven toward the rafter 10. Next, as shown in FIG. 21, the roof tiles 15 are arranged, and the roof tiles 15 and the piers 14 are fixed by the fastening nails 22.

このように構成された屋根構造１Ｂでは、波板構造体１２の上に瓦１５が配置されるため、合成樹脂製の波板構造体１２には直射日光は当たらず、経年劣化が少なくなる。また、波板構造体１２には固定釘２０，２１を貫通するための孔が形成されるが、その孔は波板構造体１２の波上部１３ａに形成されることになるため、瓦１５と波板構造体１２との間に浸入した水滴は、波上部１３ａに流入することがない。すなわち、水滴は波板構造体１２の波下部１３ｂに溜まり、軒先側に流れ落ちることになり、防水のためのルーフィングが別途不要となる。すなわち、波板構造体１２は屋根下葺材としての機能を有することとなり、十分な耐候性と低コスト性を有することになる。   In the roof structure 1 </ b> B configured as described above, the roof tiles 15 are disposed on the corrugated plate structure 12. Therefore, the corrugated plate structure 12 made of synthetic resin is not exposed to direct sunlight, and aged deterioration is reduced. Further, the corrugated plate structure 12 is formed with holes for penetrating the fixing nails 20 and 21, and the holes are formed in the wave upper portion 13 a of the corrugated plate structure 12, so Water droplets that have entered between the corrugated plate structure 12 do not flow into the wave upper portion 13a. That is, water droplets accumulate in the wave lower part 13b of the corrugated plate structure 12, and flow down to the eaves side, so that roofing for waterproofing is not required separately. That is, the corrugated sheet structure 12 has a function as a roof underglazing material, and has sufficient weather resistance and low cost.

一方、波板構造体１２はその構造上通気路Ｐが形成されているため、瓦１５との間の換気を十分に行うことができる。特に、波上部１３ａと波下部１３ｂとが並ぶ波方向を垂木１０の延びる方向と直交して配置することで、通気路Ｐが軒先から棟側に向かって形成されることとなり、換気を円滑に行うことができる。このため、室内の湿気を波板構造体１２と瓦１５の空間から棟から排湿でき、波板構造体１２での結露を防止でき、波板構造体１２の耐久性を向上させることができる。同様にして瓦１５下の熱気や雨水等の湿気を棟から排出できる。このため、断熱性も向上させることができる。   On the other hand, the corrugated plate structure 12 is formed with a ventilation path P due to its structure, and therefore can sufficiently ventilate with the roof tile 15. In particular, by arranging the wave direction in which the wave upper part 13a and the wave lower part 13b are arranged perpendicular to the direction in which the rafter 10 extends, the ventilation path P is formed from the eaves to the ridge side, so that ventilation is smoothly performed. It can be carried out. For this reason, indoor moisture can be drained from the ridge from the space of the corrugated plate structure 12 and the roof tile 15, dew condensation on the corrugated plate structure 12 can be prevented, and durability of the corrugated plate structure 12 can be improved. . Similarly, moisture such as hot air and rainwater under the roof tile 15 can be discharged from the building. For this reason, heat insulation can also be improved.

上述したように、本実施の形態に係る屋根構造１Ｂによれば、合成樹脂製の波板構造体１２を屋根下葺材及び野地板の代わりとして用いることで十分な耐久性を有しつつ、防水性を維持し、室内の換気を行うことが可能となる。さらに、波板１３同士の間にも通気路Ｐが形成されるため、波板構造体１２の通気量を十分に確保することが可能となる。   As described above, according to the roof structure 1B according to the present embodiment, the corrugated plate structure 12 made of synthetic resin is used as a substitute for the roof underlaying material and the field plate, while having sufficient durability, and is waterproof. It becomes possible to maintain the sex and to ventilate the room. Furthermore, since the ventilation path P is also formed between the corrugated plates 13, it is possible to ensure a sufficient amount of ventilation of the corrugated plate structure 12.

図２２は本発明の第４の実施の形態に係る屋根構造１Ｃの要部を示す斜視図、図２３は同屋根構造１Ｃの断面図である。図１７及び図１８において図１〜図４と同一機能部分には同一符号を付し、その詳細な説明は省略する。屋根構造１Ｃにおいては、屋根材として金属板５０と太陽光発電パネル６０の組合せを用いている。   FIG. 22 is a perspective view showing the main part of the roof structure 1C according to the fourth embodiment of the present invention, and FIG. 23 is a sectional view of the roof structure 1C. 17 and 18, the same functional parts as those in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted. In the roof structure 1 </ b> C, a combination of the metal plate 50 and the photovoltaic power generation panel 60 is used as a roofing material.

金属板５０と太陽光発電パネル６０を用いた場合においては、桟木１４を用いず、金属板５０に係合部５１を形成し、その係合部５１に上段の金属板５０の下端５２を引っ掛けて係止することで金属板５０同士を固定している。このため、締結釘は不要となる。さらに金属板５０上に太陽光発電パネル６０が載置されている。   When the metal plate 50 and the solar power generation panel 60 are used, the engaging portion 51 is formed on the metal plate 50 without using the crosspiece 14, and the lower end 52 of the upper metal plate 50 is hooked on the engaging portion 51. And the metal plates 50 are fixed to each other. For this reason, a fastening nail becomes unnecessary. Further, a photovoltaic power generation panel 60 is placed on the metal plate 50.

なお、固定釘２１は、金属板５０から波板構造体１２の波上部１３ａを貫通して野地板１１、垂木１０の順で打たれている。この場合であっても、屋根構造１Ａと同様の効果を得ることができる。   The fixed nail 21 is pierced from the metal plate 50 through the corrugated portion 13 a of the corrugated plate structure 12 in the order of the base plate 11 and the rafter 10. Even in this case, the same effect as that of the roof structure 1A can be obtained.

なお、本発明は前記実施の形態に限定されるものではなく、波板の波方向を垂木１０の延びる方向と並行に配置してもよい。また、波板構造体１２は、通気、排湿、水返し機能を有する防水下地材としても用いることができる。この他、本発明の要旨を逸脱しない範囲で種々変形実施可能であるのは勿論である。   In addition, this invention is not limited to the said embodiment, You may arrange | position the wave direction of a corrugated sheet in parallel with the direction where the rafter 10 is extended. The corrugated plate structure 12 can also be used as a waterproof base material having ventilation, moisture removal, and water return functions. Of course, various modifications can be made without departing from the scope of the present invention.

本発明の第１の実施の形態に係る屋根構造を示す断面図。Sectional drawing which shows the roof structure which concerns on the 1st Embodiment of this invention. 同屋根構造の施工工程を示す断面図。Sectional drawing which shows the construction process of the roof structure. 同屋根構造の施工工程を示す断面図。Sectional drawing which shows the construction process of the roof structure. 同屋根構造の施工工程を示す断面図。Sectional drawing which shows the construction process of the roof structure. 同屋根構造に組み込まれた波板構造体を一部切欠して示す斜視図。The perspective view which partially cuts and shows the corrugated sheet structure integrated in the roof structure. 同波板構造体を波方向に沿って切断した断面図。Sectional drawing which cut | disconnected the corrugated plate structure along the wave direction. 同波板構造体を垂木方向に沿って切断した断面図。Sectional drawing which cut | disconnected the corrugated plate structure along the rafter direction. 同波板構造体の変形例を一部切欠して示す斜視図。The perspective view which shows a modification of the corrugated plate structure, with a part cut away. 同波板構造体を波方向に沿って切断した断面図。Sectional drawing which cut | disconnected the corrugated plate structure along the wave direction. 同波板構造体を垂木方向に沿って切断した断面図。Sectional drawing which cut | disconnected the corrugated plate structure along the rafter direction. 同波板構造体の変形例を一部切欠して示す斜視図。The perspective view which shows a modification of the corrugated plate structure, with a part cut away. 同波板構造体を波方向に沿って切断した断面図。Sectional drawing which cut | disconnected the corrugated plate structure along the wave direction. 同波板構造体を垂木方向に沿って切断した断面図。Sectional drawing which cut | disconnected the corrugated plate structure along the rafter direction. 同波板構造体の変形例を一部切欠して示す斜視図。The perspective view which shows a modification of the corrugated plate structure, with a part cut away. 同波板構造体を波方向に沿って切断した断面図。Sectional drawing which cut | disconnected the corrugated plate structure along the wave direction. 同波板構造体を垂木方向に沿って切断した断面図。Sectional drawing which cut | disconnected the corrugated plate structure along the rafter direction. 本発明の第２の実施の形態に係る屋根構造を示す斜視図。The perspective view which shows the roof structure which concerns on the 2nd Embodiment of this invention. 同屋根構造を示す断面図。Sectional drawing which shows the same roof structure. 本発明の第３の実施の形態に係る屋根構造の施工工程を示す断面図。Sectional drawing which shows the construction process of the roof structure which concerns on the 3rd Embodiment of this invention. 同屋根構造の施工工程を示す断面図。Sectional drawing which shows the construction process of the roof structure. 同屋根構造の施工工程を示す断面図。Sectional drawing which shows the construction process of the roof structure. 本発明の第４の実施の形態に係る屋根構造を示す斜視図。The perspective view which shows the roof structure which concerns on the 4th Embodiment of this invention. 同屋根構造を示す断面図。Sectional drawing which shows the same roof structure.

１，１Ａ，１Ｂ，１Ｃ…屋根構造、１０…垂木、１１…野地板、１２，１２Ａ〜１２Ｃ…波板構造体、１３…波板、１４…桟木、１５…瓦（屋根材）、２０，２１…固定釘、２２…締結釘、４０…金属瓦（金属屋根材）、５０…金属板、６０…太陽光発電パネル。   DESCRIPTION OF SYMBOLS 1,1A, 1B, 1C ... Roof structure, 10 ... Rafter, 11 ... Field plate, 12, 12A-12C ... Corrugated sheet structure, 13 ... Corrugated board, 14 ... Pier, 15 ... Tile (roof material), 20, DESCRIPTION OF SYMBOLS 21 ... Fixed nail, 22 ... Fastening nail, 40 ... Metal tile (metal roofing material), 50 ... Metal plate, 60 ... Solar power generation panel.

Claims (13)

垂木と、
この垂木に下面が支持された野地板と、
この野地板の上に配置され、複数枚の波板がその一部を重ね合わせて配置された波板構造体と、
この波板構造体の上に配置された桟木と、
この桟木の上に配置された屋根材と、
上記波板構造体の波上部を貫通して上記野地板、上記垂木の順で打たれた固定釘と、
上記屋根材から上記桟木に打たれた締結釘とを備え、
上記波板の波下部の上端側には、他の波板の波下部の下端側との間に隙間を形成する突起部が形成されていることを特徴とする屋根構造。 With rafters,
A field plate whose lower surface is supported by this rafter,
A corrugated plate structure that is arranged on the base plate, and a plurality of corrugated plates are arranged by overlapping a part thereof;
A pier arranged on the corrugated plate structure,
Roofing material placed on this pier,
A fixed nail that has been struck in the order of the base plate, the rafter, penetrating the wave top of the corrugated plate structure,
A fastening nail struck from the roofing material to the pier,
A roof structure characterized in that a protrusion is formed on the upper end side of the corrugated part of the corrugated sheet to form a gap with the lower end side of the corrugated part of another corrugated sheet . 垂木と、
この垂木に下面が支持された野地板と、
この野地板の上に配置され、複数枚の波板がその一部を重ね合わせて配置された波板構造体と、
この波板の上に配置された金属屋根材と、
この金属屋根材から上記波板の波上部を貫通して上記野地板、上記垂木の順で打たれた固定釘とを備え、
上記波板の波下部の上端側には、他の波板の波下部の下端側との間に隙間を形成する突起部が形成されていることを特徴とする屋根構造。 With rafters,
A field plate whose lower surface is supported by this rafter,
A corrugated plate structure that is arranged on the base plate, and a plurality of corrugated plates are arranged by overlapping a part thereof;
Metal roofing material placed on this corrugated sheet,
From the metal roof material through the wave top of the corrugated plate, the field plate, fixed nails struck in the order of the rafters,
A roof structure characterized in that a protrusion is formed on the upper end side of the corrugated part of the corrugated sheet to form a gap with the lower end side of the corrugated part of another corrugated sheet . 垂木と、
この垂木に下面が支持され、複数枚の波板がその一部を重ね合わせて配置された波板構造体と、
この波板構造体の上に配置された桟木と、
この桟木の上に配置された屋根材と、
上記波板構造体の波上部を貫通して上記垂木に打たれた固定釘と、
上記屋根材から上記桟木に打たれた締結釘とを備え、
上記波板の波下部の上端側には、他の波板の波下部の下端側との間に隙間を形成する突起部が形成されていることを特徴とする屋根構造。 With rafters,
The bottom surface is supported by this rafter, and a corrugated plate structure in which a plurality of corrugated plates are arranged with a part of the corrugated plate,
A pier arranged on the corrugated plate structure,
Roofing material placed on this pier,
A fixed nail that penetrates the wave top of the corrugated plate structure and is struck by the rafter;
A fastening nail struck from the roofing material to the pier,
A roof structure characterized in that a protrusion is formed on the upper end side of the corrugated part of the corrugated sheet to form a gap with the lower end side of the corrugated part of another corrugated sheet . 垂木と、
この垂木に下面が支持され、複数枚の波板がその一部を重ね合わせて配置された波板構造体と、
この波板の上に配置された金属屋根材と、
この金属屋根材から上記波板の波上部を貫通して上記垂木に打たれた固定釘とを備え、
上記波板の波下部の上端側には、他の波板の波下部の下端側との間に隙間を形成する突起部が形成されていることを特徴とする屋根構造。 With rafters,
The bottom surface is supported by this rafter, and a corrugated plate structure in which a plurality of corrugated plates are arranged with a part of the corrugated plate,
Metal roofing material placed on this corrugated sheet,
A fixed nail that penetrates the wave top of the corrugated sheet and is struck by the rafters from this metal roofing material,
A roof structure characterized in that a protrusion is formed on the upper end side of the corrugated part of the corrugated sheet to form a gap with the lower end side of the corrugated part of another corrugated sheet . 垂木と、
この垂木に下面が支持された野地板と、
この野地板の上に配置され、複数枚の波板がその一部を重ね合わせて配置された波板構造体と、
この波板の上に配置された太陽光発電パネルと、
この太陽光発電パネルから上記波板の波上部を貫通して上記野地板、上記垂木の順で打たれた固定釘とを備え、
上記波板の波下部の上端側には、他の波板の波下部の下端側との間に隙間を形成する突起部が形成されていることを特徴とする屋根構造。 With rafters,
A field plate whose lower surface is supported by this rafter,
A corrugated plate structure that is arranged on the base plate, and a plurality of corrugated plates are arranged by overlapping a part thereof;
A photovoltaic panel arranged on the corrugated plate,
From the photovoltaic panel through the wave top of the corrugated plate, the base plate, fixed nails struck in the order of the rafters,
A roof structure characterized in that a protrusion is formed on the upper end side of the corrugated part of the corrugated sheet to form a gap with the lower end side of the corrugated part of another corrugated sheet . 垂木と、
この垂木に下面が支持され、複数枚の波板がその一部を重ね合わせて配置された波板構造体と、
この波板の上に配置された太陽光発電パネルと、
この太陽光発電パネルから上記波板の波上部を貫通して上記垂木に打たれた固定釘とを備え、
上記波板の波下部の上端側には、他の波板の波下部の下端側との間に隙間を形成する突起部が形成されていることを特徴とする屋根構造。 With rafters,
The bottom surface is supported by this rafter, and a corrugated plate structure in which a plurality of corrugated plates are arranged with a part of the corrugated plate,
A photovoltaic panel arranged on the corrugated plate,
A fixed nail that penetrates the wave top of the corrugated plate and is struck by the rafters from this solar panel,
A roof structure characterized in that a protrusion is formed on the upper end side of the corrugated part of the corrugated sheet to form a gap with the lower end side of the corrugated part of another corrugated sheet . 上記波板と上記野地板との間には、通気層が形成されていることを特徴とする請求項１、２、５のいずれかに記載の屋根構造。   The roof structure according to claim 1, wherein a ventilation layer is formed between the corrugated sheet and the base plate. 上記波板と上記屋根材との間には、通気層が形成されていることを特徴とする請求項１又は３に記載の屋根構造。   The roof structure according to claim 1, wherein a ventilation layer is formed between the corrugated sheet and the roof material. 上記波板と上記金属屋根材との間には、通気層が形成されていることを特徴とする請求項２又は４に記載の屋根構造。   The roof structure according to claim 2, wherein a ventilation layer is formed between the corrugated sheet and the metal roof material. 上記波板と上記太陽光発電パネルとの間には、通気層が形成されていることを特徴とする請求項５又は６に記載の屋根構造。   The roof structure according to claim 5 or 6, wherein a ventilation layer is formed between the corrugated sheet and the photovoltaic power generation panel. 上記突起部は、上記波板の端部が折曲されて形成されたものであることを特徴とする請求項１〜６のいずれかに記載の屋根構造。   The roof structure according to claim 1, wherein the protrusion is formed by bending an end portion of the corrugated sheet. 複数枚の波板がその一部を重ね合わせて配置された波板構造体と、
上記波板構造体の波上部を貫通する固定釘とを備え、
上記波板の波下部の上端側には、他の波板の波下部の下端側との間に隙間を形成する突起部が形成されていることを特徴とする防水下地材。 A corrugated plate structure in which a plurality of corrugated plates are arranged by overlapping a part thereof;
A fixing nail penetrating the wave top of the corrugated plate structure,
A waterproof base material, wherein a protrusion is formed on the upper end side of the corrugated portion of the corrugated plate to form a gap with the lower end side of the corrugated portion of another corrugated plate. 上記突起部は、上記波板の端部が折曲されて形成されたものであることを特徴とする請求項１２に記載の防水下地材。 The waterproof base material according to claim 12 , wherein the protrusion is formed by bending an end of the corrugated sheet.
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