JP2005171623A - Roof structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roof structure which is excellent in appearance of a ceiling surface and heat insulating properties. <P>SOLUTION: In this roof structure, a flat part and a plurality of ribs, which are protrusively provided above the flat part and continuously elongated in the longitudinal direction of the flat part, are provided as members for a roof, which are placed on and fixed to a beam; the member for the roof, made of a metallic plate, is used for the rib, and comprises an overlap part wherein the rib continues into the flat part, and a box-shaped part which is formed at the upper end of the overlap part; a heat insulating material is laminated on the upside of the member for the roof, and fixed to the box-shaped part by a locking means; and a waterproof sheet is provided in such a manner as to cover the heat insulating material. The height of the rib and an interval between the ribs are set at appropriate values, so that the heat insulating properties can be enhanced. Preferably, the vicinity of the downside of a butt part at the end of the member for the roof has a constitution wherein a sealing material is arranged between the beam and the member for the roof. This enhances water-sealing and waterproof effects. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

Translated fromJapanese

本発明は、建築物の屋根構造に係り、とくに平坦な天井を安価に形成できる屋根構造に関する。  The present invention relates to a roof structure of a building, and more particularly to a roof structure that can form a flat ceiling at low cost.

屋根は、建築物の主要な部位をしめており、複雑で厳しい機能が求められている。従来から、屋根用部材として、薄肉の金属板が平板のまま、あるいは複雑な形状に加工されて用いられている。とくに、工場、倉庫等の屋根には、波型に折り曲げた形状の金属製折板を用いた屋根材が用いられることが多い。  The roof is the main part of the building and requires complex and strict functions. Conventionally, as a roof member, a thin metal plate is used as a flat plate or processed into a complicated shape. In particular, roofs made of metal folded plates bent into corrugations are often used for roofs of factories and warehouses.

例えば、特許文献１には、梁に図５に示すような波型に折り曲げた形状の金属製折板20を載置し、その上に、下地ボード材21、断熱材22および防水層23を順次積層してなる屋根構造1が提案されている。特許文献１に記載された技術では、金属製折板20の上に下地ボード材21と断熱材22を敷き詰めて、断熱材22の上から、頭部に円盤状のディスク盤25を設けた固定金具24（ビス）を用いて金属製折板20に機械的に固定し、次に、断熱材22の上に防水シート(層)23を敷設してディスク盤表面と防水シート（層）裏面を接着して屋根構造を形成している。  For example, inPatent Document 1, a metal foldedplate 20 bent into a corrugated shape as shown in FIG. 5 is placed on a beam, and abase board material 21, aheat insulating material 22, and awaterproof layer 23 are formed thereon. Aroof structure 1 formed by sequentially laminating has been proposed. In the technique described inPatent Document 1, abase board material 21 and aheat insulating material 22 are spread on a metal foldedplate 20, and a disk-shaped disk 25 is provided on the head from above theheat insulating material 22. It is mechanically fixed to the metal foldedplate 20 using the metal fittings 24 (screws), and then a waterproof sheet (layer) 23 is laid on theheat insulating material 22 so that the disk board surface and the waterproof sheet (layer) back surface The roof structure is formed by bonding.

しかしながら、特許文献１に示された屋根構造では、天井などの内装面が複雑であり、しかもそのままでは取り付け用の固定金具が天井裏などの内側面に露出して、室内からの美観上問題があり、内装材を取り付けて内装面の美観を向上させる必要があり、工期が長くなり製造コストが高騰するうえ、さらには固定金具（ファスナー）に錆が発生するなどの問題があった。  However, in the roof structure shown inPatent Document 1, the interior surface such as the ceiling is complicated, and the fixing bracket for mounting is exposed on the inner surface such as the back of the ceiling as it is, and there is a problem of aesthetics from the room. In addition, it is necessary to attach the interior material to improve the aesthetics of the interior surface, and there are problems such as a longer construction period and a higher manufacturing cost, and further, rusting on the fixing bracket (fastener).

また、図６に示すような波型に折り曲げた形状の金属製折板20と、折板20の上に折り曲げられた形状の断熱材22を積層する断熱二重折板型屋根構造も実用化されている。  Further, a heat-insulated double folded plate roof structure in which a metal foldedplate 20 bent into a corrugated shape as shown in FIG. 6 and aheat insulating material 22 bent into a shape on the foldedplate 20 are laminated is also put into practical use. Has been.

しかし、図６に示す屋根構造では天井などの内装面が複雑であり天井の美観上問題がある。
特開平８-246609号公報However, in the roof structure shown in FIG. 6, the interior surface such as the ceiling is complicated, and there is a problem in the appearance of the ceiling.
JP-A-8-246609

本発明は、上記した従来技術の問題を解決して、平坦な天井面や安価に形成でき、天井内装面の美観性に優れ、しかも断熱効果や遮音効果にも優れ、さらには工事中の止水性、施工後の防水性にも優れた、屋根構造を提案することを目的とする。  The present invention solves the above-mentioned problems of the prior art, can be formed flat and inexpensively, has excellent aesthetics of the ceiling interior surface, and has excellent heat insulation and sound insulation effects. The purpose is to propose a roof structure that is water-based and waterproof after construction.

本発明の要旨はつぎのとおりである。  The gist of the present invention is as follows.

（１）梁と、該梁に載置固定される屋根用部材と、該屋根用部材の上側に積層される断熱材と、該断熱材を覆い屋根の上面を形成する防水用シートとを備える屋根構造であって、前記屋根用部材が、フラット部と、該フラット部の上方に突設されて、前記フラット部の長手方向に連続して延びる複数条のリブと、を備え、前記リブが、前記フラット部に連続する重ね合わせ部と、該重ね合わせ部の上端に形成される箱状部とを有する金属板製であり、前記断熱材が、前記箱状部に、長手方向に所定間隔を隔てて複数の止め手段で固定されてなることを特徴とする屋根構造。  (1) A beam, a roof member placed and fixed on the beam, a heat insulating material stacked on the roof member, and a waterproof sheet that covers the heat insulating material and forms an upper surface of the roof. A roof structure, wherein the roof member includes a flat portion, and a plurality of ribs protruding above the flat portion and continuously extending in a longitudinal direction of the flat portion. , Made of a metal plate having an overlapping portion continuous with the flat portion and a box-shaped portion formed at the upper end of the overlapping portion, and the heat insulating material is spaced apart from the box-shaped portion by a predetermined distance in the longitudinal direction. A roof structure characterized by being fixed by a plurality of stopping means with a gap therebetween.

（２）（１）において、前記屋根用部材の端部同士の突合せ部の下側近傍が、前記屋根用部材と前記梁との間にシーリング材を配設してなる構成を有することを特徴とする屋根構造。  (2) In (1), the lower vicinity of the abutting portion between the end portions of the roof member has a configuration in which a sealing material is disposed between the roof member and the beam. And the roof structure.

（３）（１）において、前記屋根用部材の端部同士の突合せ部の下側近傍が、前記屋根用部材と前記梁との間に屋根用部材側からシーリング材と高さ調整材とをこの順に配設してなる構成を有することを特徴とする屋根構造。  (3) In (1), the lower vicinity of the butted portion between the end portions of the roof member includes a sealing material and a height adjusting material from the roof member side between the roof member and the beam. A roof structure characterized by having a configuration arranged in this order.

（４）（１）ないし（３）のいずれかにおいて、前記複数条のリブの高さが50〜150mmの範囲内であることを特徴とする屋根構造。  (4) The roof structure according to any one of (1) to (3), wherein the height of the plurality of ribs is within a range of 50 to 150 mm.

（５）（４）において、前記複数条のリブの間隔が100〜600mmの範囲内であることを特徴とする記載の屋根構造。  (5) The roof structure according to (4), wherein an interval between the plurality of ribs is in a range of 100 to 600 mm.

（６）（１）ないし（５）のいずれかにおいて、前記止め具が、前記箱状部に10〜30mm突き出ていることを特徴とする屋根構造。  (6) The roof structure according to any one of (1) to (5), wherein the stopper protrudes 10 to 30 mm from the box-shaped portion.

本発明によれば、天井の美観および断熱効果に優れ、しかも遮音性、例えば雨音の滅音効果にも優れた軽量の陸屋根を安価に構成することができ、産業上格段の効果を奏する。また、本発明によれば、省エネルギーに寄与するという効果、があり、さらには工事中の止水性向上、施工後の防水性向上といった効果もある。  ADVANTAGE OF THE INVENTION According to this invention, the lightweight flat roof excellent in the aesthetics of a ceiling and the heat insulation effect, and also excellent in sound-insulating property, for example, the sound-deadening effect of rain sound, can be comprised cheaply, and there exists a remarkable effect on industry. Moreover, according to this invention, there exists an effect of contributing to energy saving, Furthermore, there also exists an effect of the waterproofing improvement during construction, and the waterproof improvement after construction.

本発明の屋根構造の一例を図１に断面図で示す。  An example of the roof structure of the present invention is shown in a sectional view in FIG.

本発明の屋根構造は、梁50と、該梁50に載置固定される屋根用部材１と、該屋根用部材１の上側に積層される断熱材２と、該断熱材２を覆い屋根の上面を形成する防水用シート３とを備える屋根構造10である。  The roof structure of the present invention includes abeam 50, aroof member 1 placed and fixed on thebeam 50, aheat insulating material 2 laminated on theroof member 1, and a cover covering theheat insulating material 2. Aroof structure 10 including awaterproof sheet 3 forming an upper surface.

本発明で使用する屋根用部材１は、金属板で構成される。金属板としては、とくに限定されるものではないが、めっき鋼板、ステンレス鋼板、あるいはフッ素樹脂塗装鋼板などの表面処理鋼板、またはアルミニウム板等の非鉄金属板がいずれも好適に使用できる。また、めっき鋼板としては、耐食性の観点から亜鉛めっき鋼板とすることが好ましい。  Themember 1 for roof used by this invention is comprised with a metal plate. Although it does not specifically limit as a metal plate, Non-ferrous metal plates, such as surface-treated steel plates, such as a plated steel plate, a stainless steel plate, or a fluororesin coating steel plate, or an aluminum plate can be used conveniently. The plated steel sheet is preferably a galvanized steel sheet from the viewpoint of corrosion resistance.

本発明の屋根構造で使用する屋根用部材１の一例を、図２に示す。図２（ａ）は斜視図、図２（ｂ）は幅方向断面図である。  An example of theroof member 1 used in the roof structure of the present invention is shown in FIG. 2A is a perspective view, and FIG. 2B is a cross-sectional view in the width direction.

本発明で使用する屋根用部材１は、フラット部11と複数条のリブ12,12とを備える。リブ12は、フラット部11の上方に突設され、フラット部11の長手方向に連続して延びる条として配設される。リブ12は、二枚の金属板を重ね合わせてなる重ね合わせ部12aと、重ね合わせ部12aの上端に箱状部12bを有する。重ね合わせ部12aはフラット部11に連続して形成される。なお、図２の箱状部12bは、横断面形状が三角形を呈しているが、本発明ではこれに限定されるものではない。三角形以外の四角形、五角形等の、上面が平坦な多角形状としてもよい。なお、重ね合わせ部12aは、長さ方向に所定の間隔をおいて、スポット溶接あるいは打抜き等により点接合してもよい。これにより、荷重が負荷されたときに重ね合わせ部が開くという問題は少なくなる。  Theroof member 1 used in the present invention includes aflat portion 11 and a plurality ofribs 12 and 12. Therib 12 protrudes above theflat portion 11 and is disposed as a strip that continuously extends in the longitudinal direction of theflat portion 11. Therib 12 has an overlappingportion 12a formed by overlapping two metal plates, and a box-shaped portion 12b at the upper end of the overlappingportion 12a. The overlappingportion 12a is formed continuously with theflat portion 11. 2 has a triangular cross-sectional shape, the present invention is not limited to this. It is good also as polygonal shapes with a flat upper surface, such as quadrangle | tetragon other than a triangle and a pentagon. The overlappingportion 12a may be point-joined by spot welding or punching at a predetermined interval in the length direction. This reduces the problem that the overlapping portion opens when a load is applied.

また、リブ12aは、50〜150mmの範囲内の高さＨを有することが好ましい。高さＨが50 mm未満では、箱状部の加工が困難となる。一方、150mmを超えて高くなると、外圧荷重により変形しやくすくなるとともに、特性向上効果が飽和して使用する材料量に見合う部材特性の向上が得られなくなり、経済的に不利となる。  Therib 12a preferably has a height H in the range of 50 to 150 mm. If the height H is less than 50 mm, it is difficult to process the box-shaped portion. On the other hand, when the height exceeds 150 mm, deformation is easily caused by an external pressure load, and the characteristic improvement effect is saturated, so that improvement in member characteristics corresponding to the amount of material to be used cannot be obtained, which is economically disadvantageous.

また、リブ12aは、幅方向に複数条配設されるが、その間隔Ｗ(重ね合わせ部間の距離)は、100〜600mmの範囲内とすることが好ましい。間隔が100mm未満では、部材構成に必要な材料量が増加しすぎて部材コストの高騰を招く。一方、600mmを超えて大きくなると、外圧荷重に対し変形しやすくなり、部材強度の低下を招く。 なお、図２に示す例は、リブが２条の場合の例であるが、本発明ではこれに限定されなるものではないことはいうまでもない。なお、リブ間隔が大きくなり、部材強度が低下する恐れのある場合には、補強用として、図３に示すようなリブ間に１つ以上のサブリブ14を設けてもよい。サブリブ14の高さ、個数、間隔は、部材強度の向上程度に応じ適宜選択でき、とくに限定されるものではない。  A plurality ofribs 12a are disposed in the width direction, and the interval W (distance between overlapping portions) is preferably in the range of 100 to 600 mm. If the distance is less than 100 mm, the amount of material necessary for the member configuration increases too much, leading to an increase in member cost. On the other hand, when it exceeds 600 mm, it becomes easy to be deformed against an external pressure load, resulting in a decrease in member strength. In addition, although the example shown in FIG. 2 is an example in the case of two ribs, it goes without saying that the present invention is not limited to this. When the rib interval is increased and the strength of the member may be reduced, one ormore sub-ribs 14 may be provided between the ribs as shown in FIG. 3 for reinforcement. The height, number, and interval of thesub-ribs 14 can be appropriately selected according to the degree of improvement in member strength, and are not particularly limited.

また、本発明で使用する屋根用部材１では、フラット部11は、必ずしもその面が平面である必要はなく、曲面としてもよく、また表面に凹凸模様を付与してもよい。また、本発明の屋根用部材では、強度補強の観点から、フラット部11および／またはリブ12にエンボス加工を施すこともできる。  Further, in theroof member 1 used in the present invention, theflat portion 11 does not necessarily have to be a flat surface, and may be a curved surface, or may be provided with an uneven pattern on the surface. Further, in the roof member of the present invention, theflat portion 11 and / or therib 12 can be embossed from the viewpoint of strength reinforcement.

また、本発明で使用する屋根用部材１の端部には、幅方向に所望の個数の屋根部材が接続可能なように、それぞれ雄型接続端13aおよび雌型接続端13bを有することが好ましい。図２に示す、接続端13a,13bは、鋼板を長さ方向にわたる折り曲げ加工により形成されたものであるが、本発明ではこれに限定されるものではない。  Moreover, it is preferable that the end of theroof member 1 used in the present invention has amale connection end 13a and afemale connection end 13b, respectively, so that a desired number of roof members can be connected in the width direction. . The connection ends 13a and 13b shown in FIG. 2 are formed by bending a steel plate in the length direction, but the present invention is not limited to this.

また、上記した構成の屋根用部材の製造方法は、とくに限定されるものではないが、金属板にロール成形加工を施し、幅方向にフラット部と所定間隔に設定した複数条のリブと、あるいはさらに両幅端における接続端とを形成し、さらに、剪断加工により所定長さの部材とする方法が好ましい。  In addition, the method for manufacturing the roof member having the above-described configuration is not particularly limited, and a roll forming process is performed on the metal plate, and a plurality of ribs set at a predetermined interval with a flat portion in the width direction, or Further, it is preferable to form a connection end at both width ends and further form a member having a predetermined length by shearing.

本発明で使用する屋根構造10は、上記した構造の屋根部材１を１個または必要に応じて幅方向に複数個接続し、あるいはさらに屋根部材を長さ方向に突き合せて、所望の大きさ（幅×長さ）の屋根部材とする。ついで、屋根用部材１，１の上側に所望厚さの断熱材２を積層し、さらに断熱材２を覆うように防水シート３を重ね、屋根面を形成する。なお、断熱材の下側に所定厚さの断熱材や下地ボード材を積層しても何ら問題はない。  Theroof structure 10 used in the present invention has a desired size by connecting oneroof member 1 having the structure described above or a plurality ofroof members 1 in the width direction as required, or by further abutting the roof members in the length direction. The roof member is (width x length). Next, aheat insulating material 2 having a desired thickness is laminated on the upper side of theroof members 1, 1, and awaterproof sheet 3 is stacked so as to cover theheat insulating material 2 to form a roof surface. Note that there is no problem even if a heat insulating material or a base board material having a predetermined thickness is laminated on the lower side of the heat insulating material.

断熱材２は、長手方向に所定間隔を隔てて止め手段４である複数の止め具4bで、箱状部12b（屋根部材１）に固定される。断熱材２は、ディスクまたは固定金具4aを介して止め具4bで固定されることが好ましい。止め具4bは、10〜30mmだけ箱状部12bに突き出るような長さとすることが好ましい。止め具の突き出し長さが10mm未満では、ヒートブリッジにより結露を発生させる危険性が高くなるとともに固定後の安定性に不安がある。一方、30mmを超えて長くなると、止め具のコストが高くなり経済的に不利となるとともに、止め具先端が箱状部12bに接触し先端が破損し、作業性が低下するという問題が生じる危険性が高くなる。  Theheat insulating material 2 is fixed to the box-shapedpart 12b (roof member 1) with a plurality ofstoppers 4b which are stopping means 4 at a predetermined interval in the longitudinal direction. Theheat insulating material 2 is preferably fixed with astopper 4b via a disk or a fixingmetal 4a. Thestopper 4b is preferably long enough to protrude from the box-shapedpart 12b by 10 to 30 mm. If the protruding length of the stopper is less than 10 mm, there is a high risk of condensation due to the heat bridge, and there is anxiety about stability after fixing. On the other hand, if the length exceeds 30 mm, the cost of the stopper increases, which is disadvantageous economically, and the tip of the stopper comes into contact with the box-shapedpart 12b and the tip is damaged, resulting in a problem that workability is reduced. Increases nature.

また、断熱材２は箱状部12bに固定するほかに、フラット部11上に所定の厚さ積層してもよい。  In addition to fixing theheat insulating material 2 to the box-shapedportion 12b, theheat insulating material 2 may be laminated on theflat portion 11 with a predetermined thickness.

なお、断熱材や下地ボード材としては、硬質ウレタンボード、発砲スチレンボード、ガラス繊維ボード、ロックウールボード、木片セメント板、木毛セメント板、フェノール樹脂系ボード等が例示できる。また、屋根面を形成する防水シート３は、塩化ビニル系シート、アスファルト系シート、ゴム系シート、エチレンプロパレン系シート、金属板等の材料とすることが好ましい。なお、防水シート３の重ね合わせ部や、防水シート３と下層の材料（例えば、デスク４ａ）との接合は、熱、溶剤、はぜ締め、接着剤等により行うことが好ましい。  Examples of the heat insulating material and the base board material include hard urethane board, foamed styrene board, glass fiber board, rock wool board, wood piece cement board, wood wool cement board, phenol resin board and the like. Thewaterproof sheet 3 forming the roof surface is preferably made of a material such as a vinyl chloride sheet, an asphalt sheet, a rubber sheet, an ethylene propylene sheet, or a metal plate. In addition, it is preferable to perform joining of the overlapping part of thewaterproof sheet 3 and thewaterproof sheet 3 and the lower layer material (for example, thedesk 4a) by heat, a solvent, screwing, an adhesive, or the like.

より広い屋根空間を構成するために、屋根部材１同士を、長さ方向端部で突き合せる場合に、本発明の屋根構造では、図４（ａ）に示すように、屋根用部材１の端部同士の突合せ部101の下側近傍が、屋根用部材１の下側と梁50との間にシーリング材５を配設した構成を有することが好ましい。これにより、水密性・気密性が向上し突合せ部からの水漏れを防止することができ、施工後の防水はもちろん工事中の止水を効果的に行うことができる。シーリング材としては、水密性・気密性を有する不定形の材料、あるいは水密性・気密性を有するテープ状材料とすることが好ましい。シーリング材の材質としてはブチルゴム系、アスファルト瀝青材系、あるいはウレタン系、変性シリコン系とすることが好ましい。なお、シーリング材の厚さは、0.5〜1.5 mm程度とすることが好ましい。  In order to construct a wider roof space, when theroof members 1 are abutted at the end portions in the length direction, in the roof structure of the present invention, as shown in FIG. It is preferable that the vicinity of the lower side of thebutt portion 101 between the portions has a configuration in which the sealingmaterial 5 is disposed between the lower side of theroof member 1 and thebeam 50. Thereby, watertightness and airtightness can be improved and water leakage from the butt portion can be prevented, and waterproofing during construction can be effectively performed as well as waterproofing after construction. The sealing material is preferably an amorphous material having water tightness and air tightness, or a tape-like material having water tightness and air tightness. The material of the sealing material is preferably butyl rubber, asphalt bituminous, urethane, or modified silicon. The thickness of the sealing material is preferably about 0.5 to 1.5 mm.

また、図４（ｂ）に示すように、屋根用部材の端部同士の突合せ部101の下側近傍が、屋根用部材の下側から梁50との間にシーリング材５と高さ調整材６とをこの順に配設した構成を有することが好ましい。梁50がハイテンボルト等による継手部を有する場合には梁上面の高さが一定とならないため、梁50と屋根用部材１との間に、Ｃ型チャンネル等の高さ調整材６を介してシーリング材５を配置することが好ましい。  Further, as shown in FIG. 4B, the sealingmaterial 5 and the height adjusting material are located near the lower side of the buttedportion 101 between the ends of the roof member between the lower side of the roof member and thebeam 50. 6 is preferably arranged in this order. When thebeam 50 has a joint portion such as a high ten bolt, the height of the beam upper surface is not constant, and therefore, aheight adjusting member 6 such as a C-shaped channel is interposed between thebeam 50 and theroof member 1. It is preferable to arrange the sealingmaterial 5.

上記した構成の屋根構造とすることにより、断熱材２の下層に、対流が生じにくい所定量の空気層を確保でき、断熱効果が顕著に向上し、省エネルギーに貢献できる。また、止め手段４が箱状部内に隠れるとともに、フラット部により天井面を平坦に形成できるという効果がある。なお、断熱材を箱状部以外にフラット部11上に積層することにより、断熱性、遮音性がさらに向上する。  By setting it as the roof structure of the above-mentioned structure, the predetermined amount of air layer which cannot produce a convection easily can be ensured in the lower layer of theheat insulating material 2, a heat insulation effect improves notably, and it can contribute to energy saving. In addition, the stopping means 4 is hidden in the box-shaped portion, and the ceiling surface can be formed flat by the flat portion. Note that heat insulation and sound insulation are further improved by laminating the heat insulating material on theflat portion 11 in addition to the box-shaped portion.

（実施例１）
JIS G 3302に規定される溶融亜鉛めっき鋼板SGC 490(板厚：0.8mm)を用いて図１に示す形状の屋根用部材(本発明例)を作製した。屋根用部材１は、めっき鋼板に、ロール成形加工により、幅方向にフラット部11と、所定間隔Ｗを隔てて２条の高さＨのリブ12と、さらに両幅端に雄、雌型の接続端13を形成し、さらに、剪断加工により最大長さ（12ｍ）に切断して使用した。この屋根用部材１を幅端の接続端13ａ、13ｂにより幅方向に接続した。これらを、梁50に載置して屋根構造10を構成した。なお、屋根用部材１の上に、ボード状の断熱材１（厚み：30mm）を積層し、ディスク4aを介して止め具（ビス）4bでリブ12の箱状部12bに固定した。ついで、断熱材２を塩化ビニル系防水材（シート：厚さ1.5mm）３で覆い、屋根を形成した。なお、ディスク4ａの表面と防水シート３の裏面とを接着材で固定した。なお、リブの幅方向の間隔Ｗを200mm、高さＨを100mm、止め具突き出量Ｉを20mmとした。(Example 1)
Using a hot dip galvanized steel sheet SGC 490 (plate thickness: 0.8 mm) defined in JIS G 3302, a roof member having the shape shown in FIG. 1 (example of the present invention) was produced. Theroof member 1 is made of a plated steel plate by a roll forming process, aflat portion 11 in the width direction,ribs 12 having two heights H at a predetermined interval W, and male and female type at both width ends. The connecting end 13 was formed, and further cut to the maximum length (12 m) by shearing and used. Thisroof member 1 was connected in the width direction by connectingends 13a and 13b at the width ends. These were placed on thebeam 50 to form theroof structure 10. A board-like heat insulating material 1 (thickness: 30 mm) was laminated on theroof member 1, and fixed to the box-shapedportion 12b of therib 12 with a stopper (screw) 4b via adisk 4a. Next, theheat insulating material 2 was covered with a vinyl chloride waterproofing material (sheet: thickness 1.5 mm) 3 to form a roof. The front surface of thedisk 4a and the back surface of thewaterproof sheet 3 were fixed with an adhesive. The interval W in the width direction of the ribs was 200 mm, the height H was 100 mm, and the stopper protrusion I was 20 mm.

なお、従来例１として、屋根用部材に、図５に示すような、波型形状の金属製折板を用いた以外は、断熱材の種類、厚さ、止め具の大きさ等は本発明例と同様した。なお、金属製折板は、頂部と底部の間隔Ｗを100mm、頂部の高さＨを75 mmとする形状のめっき鋼板（板厚：1.2 mm）製とした。  In addition, as a prior art example 1, except for using the corrugated metal folding plate as shown in FIG. Same as example. The metal folded plate was made of a plated steel plate (plate thickness: 1.2 mm) having a top-to-bottom distance W of 100 mm and a top height H of 75 mm.

また、従来例２として、図６に示すような断熱二重折板型屋根構造を構成した。屋根用部材として使用した金属製折板は従来例１と同様とし、断熱材の種類はグラスウール10kg/m³とした。なお断熱材の厚さは計算値50mm〜75mmとした。Further, as Conventional Example 2, a heat insulating double folded plate roof structure as shown in FIG. The metal folded plate used as the roof member was the same as that in Conventional Example 1, and the type of the heat insulating material was 10 kg / m³ of glass wool. The thickness of the heat insulating material was calculated to be 50 mm to 75 mm.

上記した構造の屋根構造について、断熱性、雨音減音効果、耐結露性を評価した。断熱性は、熱量流量を計算により求め、従来例２を基準（○）にしてそれより優れている場合を◎、それより劣る場合を△とした。また、雨音減音効果は、人工的に降雨を実行し、その際の室内での平均音圧を測定し、従来例２を基準（○）にして、それより優れる場合を◎、それより劣る場合を△とした。また、耐結露性は、外気温を−３℃、室内温度を15℃、室内湿度を50％の条件で、従来例２を基準（○）としてそれより優れる場合を◎、それより劣る場合を△として評価した。  The roof structure having the above-described structure was evaluated for heat insulation, rain sound reduction effect, and condensation resistance. For the heat insulation, the heat flow rate was obtained by calculation, and the case where it was superior to that of the conventional example 2 as a reference (◯) was indicated by ◎, and the case where it was inferior was indicated by △. In addition, the sound reduction effect of rain sound is artificially executed by rainfall, and the average sound pressure in the room at that time is measured. The case where it was inferior was rated as Δ. Condensation resistance is ◎ when the outside temperature is −3 ° C., the room temperature is 15 ° C., and the room humidity is 50%. Evaluated as △.

得られた結果を表１に示す。  The obtained results are shown in Table 1.

表１から、本発明例は従来例に比べて高い断熱性、優れた雨音減音効果、優れた耐結露性を有する屋根構造となっている。  From Table 1, the example of the present invention has a roof structure having higher heat insulation, excellent rain sound reduction effect, and better dew condensation resistance than the conventional example.

（実施例２）
実施例１で示した本発明例である屋根構造について、図４に示すように屋根用部材１の端部同士の突合せ部101の下側を梁との間にシーリング材５を配設し室内への漏水状況を目視で観察した。シーリング材としては、ブチルゴム系材（厚み：１mm）を用いた。その結果、突合せ部の下側にシーリング材を配設することにより、漏水を完全に防止できた。さらに、突合せ部にシーリング材を配設することにより、室内への汚れた空気の流入も防止できるという効果がある。(Example 2)
In the roof structure according to the present invention shown in the first embodiment, as shown in FIG. 4, the sealingmaterial 5 is disposed between the beams on the lower side of the abuttingportion 101 between the end portions of theroof member 1 and the room. The water leakage condition was visually observed. A butyl rubber material (thickness: 1 mm) was used as the sealing material. As a result, it was possible to completely prevent water leakage by disposing a sealing material under the butt portion. Furthermore, by providing a sealing material at the butting portion, there is an effect that it is possible to prevent inflow of dirty air into the room.

本発明の屋根構造の一例を模式的に示す断面図である。It is sectional drawing which shows typically an example of the roof structure of this invention.本発明で使用する屋根用部材の一例を模式的に示す説明図である。（ａ）は、斜視図、（ｂ）は、幅方向断面図である。It is explanatory drawing which shows typically an example of the member for roofs used by this invention. (A) is a perspective view, (b) is a cross-sectional view in the width direction.本発明で使用する屋根用部材の他の一例を模式的に示す断面図である。It is sectional drawing which shows typically another example of the member for roofs used by this invention.本発明の屋根構造の一例を模式的に示す長手方向断面図である。It is a longitudinal section showing an example of the roof structure of the present invention typically.従来の屋根用部材である波型屋根用部材を用いた屋根構造の一例を示す断面図である。It is sectional drawing which shows an example of the roof structure using the corrugated roof member which is the conventional roof member.従来の屋根構造の他の一例を示す断面図である。It is sectional drawing which shows another example of the conventional roof structure.

符号の説明Explanation of symbols

１ 屋根用部材
５ シーリング材
６ 高さ調整材
10 屋根構造
11 フラット部
12 リブ
12a 重ね合わせ部
12b 箱状部
13ａ 接続端（雄）
13b 接続端（雌）
14 サブリブ
20 金属製折板
21 耐火材
22 断熱材
23 防水シート（層）
24 固定金具（ビス）
25 ディスク盤
50 梁
101 突合せ部1Roofing material 5Sealing material 6 Height adjustment material
10 Roof structure
11 Flat part
12 ribs
12a Overlapping part
12b Box
13a Connection end (male)
13b Connection end (female)
14 Sub-rib
20 Metal folded board
21 Refractory material
22 Insulation
23 Tarpaulin (layer)
24 Fixing bracket (screw)
25 disc
50 beams
101 butt

Claims (6)

Translated fromJapanese

梁と、該梁に載置固定される屋根用部材と、該屋根用部材の上側に積層される断熱材と、該断熱材を覆い屋根の上面を形成する防水用シートとを備える屋根構造であって、前記屋根用部材が、フラット部と、該フラット部の上方に突設されて、前記フラット部の長手方向に連続して延びる複数条のリブと、を備え、前記リブが、前記フラット部に連続する重ね合わせ部と、該重ね合わせ部の上端に形成される箱状部とを有する金属板製であり、前記断熱材が、前記箱状部に、長手方向に所定間隔を隔てて複数の止め手段で固定されてなることを特徴とする屋根構造。  A roof structure comprising a beam, a roof member placed and fixed on the beam, a heat insulating material laminated on the roof member, and a waterproof sheet that covers the heat insulating material and forms the top surface of the roof. The roof member includes a flat portion, and a plurality of ribs protruding above the flat portion and continuously extending in a longitudinal direction of the flat portion, wherein the rib is the flat portion. And a box-shaped portion formed at the upper end of the overlapping portion, and the heat insulating material is spaced from the box-shaped portion at a predetermined interval in the longitudinal direction. A roof structure characterized by being fixed by a plurality of stopping means. 前記屋根用部材の端部同士の突合せ部の下側近傍が、前記屋根用部材と前記梁との間にシーリング材を配設してなる構成を有することを特徴とする請求項１に記載の屋根構造。  The lower vicinity of the butt | matching part of the edge parts of the said member for roofs has the structure which arrange | positions a sealing material between the said member for roofs, and the said beam, The structure of Claim 1 characterized by the above-mentioned. Roof structure. 前記屋根用部材の端部同士の突合せ部の下側近傍が、前記屋根用部材と前記梁との間に屋根用部材側からシーリング材と高さ調整材とをこの順に配設してなる構成を有することを特徴とする請求項１に記載の屋根構造。  A configuration in which the lower vicinity of the abutting portion between the ends of the roof member is formed by arranging a sealing material and a height adjusting material in this order from the roof member side between the roof member and the beam. The roof structure according to claim 1, comprising: 前記複数条のリブの高さが50〜150mmの範囲内であることを特徴とする請求項１ないし３のいずれかに記載の屋根構造。  The roof structure according to any one of claims 1 to 3, wherein a height of the plurality of ribs is in a range of 50 to 150 mm. 前記複数条のリブの間隔が100〜600mmの範囲内であることを特徴とする請求項４に記載の屋根構造。  The roof structure according to claim 4, wherein an interval between the plurality of ribs is in a range of 100 to 600 mm. 前記止め具が、前記箱状部に10〜30mm突き出ていることを特徴とする請求項１ないし５のいずれかに記載の屋根構造。  The roof structure according to any one of claims 1 to 5, wherein the stopper protrudes from the box-shaped portion by 10 to 30 mm.

Images