JP2018013007A - Thermal insulation structure of roof and its construction method - Google Patents
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Abstract
【課題】製作が容易で、施工性に優れ、機能上も優れた遮熱効果を発揮する屋根の遮熱構造を、合理的に構築できる技術を提供することを目的とする。
【解決手段】屋根骨格１を基礎に構築される屋根の遮熱構造Ｓであって、屋根骨格１が複数の垂木１３を備え、隣り合う垂木１３の間には、少なくとも１枚の遮熱パネル２が配設され、垂木１３は側面に長手方向に延在する溝１３ａを有し、遮熱パネル２の両辺が垂木の溝１３ａに嵌合していることを特徴とする屋根の遮熱構造。
【選択図】 図１
An object of the present invention is to provide a technology capable of rationally constructing a heat insulation structure for a roof that is easy to manufacture, has excellent workability, and exhibits a heat insulation effect that is functionally superior.
A roof thermal insulation structure S constructed on the basis of a roof skeleton 1, wherein the roof skeleton 1 includes a plurality of rafters 13, and at least one thermal insulation panel is provided between adjacent rafters 13. 2 is provided, the rafter 13 has a groove 13a extending in the longitudinal direction on the side surface, and both sides of the heat shield panel 2 are fitted in the rafter groove 13a. .
[Selection] Figure 1
Description
本発明は、屋根の遮熱構造及びその施工方法に関するものであり、木造家屋建築の技術に関するものである。 The present invention relates to a heat insulating structure for a roof and a construction method thereof, and relates to a technique for building a wooden house.
近年、省エネルギー化の観点から家屋等といった木造建物においても、屋根や壁等を通じての熱損失を防止すべく、屋根や壁等に断熱材を用いて断熱性を付与することが行われている。建物に断熱性を付与する断熱工法には、内断熱工法と外断熱工法とが知られ、内断熱工法は躯体柱等の間に、又外断熱工法は躯体柱等の外側に断熱材を取付けるものである。しかし、これらの断熱工法は何れも熱伝導型の断熱材を使用するため伝導熱に対しては効果的であるが、輻射熱に対しては殆んど効果が期待できないという問題がある。 In recent years, from the viewpoint of energy saving, even in wooden buildings such as houses, in order to prevent heat loss through the roof and walls, heat insulation is imparted to the roof and walls using a heat insulating material. Thermal insulation methods that give thermal insulation to buildings are known as internal thermal insulation methods and external thermal insulation methods, where internal thermal insulation methods are installed between frame columns, etc. Is. However, all of these heat insulation methods are effective for conduction heat because they use a heat conduction type heat insulating material, but there is a problem that almost no effect can be expected for radiant heat.
このような輻射熱対策として、近年、断熱材等の表面にアルミニウム箔等の輻射熱に対して高反射性の素材を用いて遮熱性を付与することが提案されている。アルミニウム箔等の輻射熱に対して高反射性の素材は、輻射熱の約９７％をその進入面側に反射する性質を有する為、アルミニウム箔等を表面に有する断熱材を屋根や壁等に用いた場合、高い遮熱断熱効果を得ることができるが、輻射熱に対して高反射性の素材は伝導熱及び対流熱には逆効果となる為、これらの反射面と接する屋根材や外装材等は胴縁等により通気層が形成されるよう取り付ける必要がある。 As a countermeasure against such radiant heat, in recent years, it has been proposed to provide a heat shielding property to a surface of a heat insulating material or the like by using a highly reflective material against radiant heat such as an aluminum foil. A material highly reflective to radiant heat, such as aluminum foil, has a property of reflecting about 97% of the radiant heat to the entrance surface side, so a heat insulating material having aluminum foil or the like on the surface is used for the roof or wall. In this case, a high heat insulation and heat insulation effect can be obtained, but a material highly reflective to radiant heat has an adverse effect on conduction heat and convection heat. It is necessary to attach so that the ventilation layer is formed by the trunk edge or the like.
例えば、特許文献１には、垂木上に、木質ボードの表面にアルミニウム箔等を設けた遮熱ボードを直接釘やビス等で取り付けた後、遮熱ボード上に胴縁等を設けることで遮熱ボードと屋根材との間に通気層を形成する屋根の遮熱工法が記載されている。特許文献２には、垂木上に野地板を敷設した後、小屋裏側から隣接する垂木間に、表面側の両側端部に凸条部を形成して表面側に通気層を形成した長尺平板状の遮熱断熱材を埋め込んで固定する遮熱断熱工法が記載されている。特許文献３には、層着面に通気用条溝と肉厚部とを交互・平行に備え、幅中央部と両側縁部とに縦桟を一体化した断熱層上に、遮熱反射層を配置し、遮熱反射層上面にパネル全幅に亘る屋根下地を、通気胴縁を介して通気層を確保した形態で一体化した屋根パネルが記載され、該屋根パネルを棟木、母屋、軒桁等の上面に直接固定することが記載されている。 For example, in Patent Document 1, a heat shield board provided with an aluminum foil or the like on the surface of a wooden board is directly attached to a rafter by using a nail or a screw, and then a trunk edge or the like is provided on the heat shield board. A roof thermal insulation method is described in which a ventilation layer is formed between the thermal board and the roofing material. Patent Document 2 discloses a long flat plate in which a base plate is laid on a rafter, and then, between the rafters adjacent from the back of the hut, ridges are formed on both side ends on the surface side, and a ventilation layer is formed on the surface side. The thermal insulation thermal insulation method which embeds and fixes the shape thermal insulation thermal insulation material is described. In Patent Document 3, a heat shielding / reflective layer is provided on a heat-insulating layer in which ventilation grooves and thick portions are provided alternately and in parallel on the layer attachment surface, and vertical bars are integrated in the width center portion and both side edges. A roof panel is described in which a roof base covering the entire width of the panel is integrated on the upper surface of the heat shield reflective layer in a form in which a ventilation layer is secured via a ventilation trunk edge, and the roof panel is a purlin, purlin, eaves girder It is described that it is directly fixed to the upper surface of the like.
しかしながら、特許文献１に記載の遮熱工法は、屋根の施工手順において一般的に垂木上に野地板が施工されるものが、垂木上に遮熱ボードを施工した後、胴縁取り付け、野地板施工と順次施工する必要があり、非常に施工手間がかかる問題がある。また、野地板を敷設する前の、屋根骨格の傾斜面での足場が悪い状態で垂木に遮熱ボードを施工する為、遮熱ボードの施工作業が危険である。 However, in the heat shield method described in Patent Document 1, in the construction procedure of the roof, a field plate is generally constructed on a rafter. There is a problem that it is necessary to carry out construction and sequential construction, and it takes a lot of work. In addition, since the heat shield board is constructed on the rafters in a state where the scaffolding on the inclined surface of the roof skeleton is poor before laying the base plate, the construction work of the heat shield board is dangerous.
特許文献２に記載の遮熱断熱工法は、垂木上に野地板を敷設した後、小屋裏側から垂木と垂木との間に遮熱断熱材を埋め込むことから、安全に遮熱断熱構造を形成することができるが、この遮熱断熱材は通気層を形成するための凸条部が一体成形された遮熱断熱パネルとなっている為、複寄棟、方形、入母屋等の複雑な屋根形状の場合、それぞれの屋根の位置に対応する形状のパネルを製作しなくてはならず、パネルの製作自体が煩雑であり、施工現場の寸法に合わせたパネル製作は非現実的である。一方で、特定サイズのパネルを製作し、施工現場にてパネルを加工して埋め込むことも考えられるが、パネルの加工自体が複雑になる。 The thermal insulation thermal insulation method described in Patent Document 2 lays a field board on a rafter, and then embeds a thermal insulation thermal insulation material between the rafter and the rafter from the back of the hut, so that a thermal insulation thermal insulation structure is formed safely. However, since this thermal barrier thermal insulation material is a thermal barrier thermal insulation panel in which the ridges for forming the ventilation layer are integrally molded, it has a complex roof shape such as a multi-story building, square, and main building. In this case, it is necessary to manufacture a panel having a shape corresponding to the position of each roof, and the manufacture of the panel itself is complicated, and it is impractical to manufacture the panel according to the dimensions of the construction site. On the other hand, it is conceivable to manufacture a panel of a specific size and process and embed the panel at the construction site, but the processing of the panel itself becomes complicated.
また、特許文献３に記載の屋根パネルは、通気胴縁を介して通気層を確保した形態で一体化したパネルであるため、施工性には優れるが、上述したように、複雑な屋根形状に合わせてパネルを製作することは非常に煩雑となる。 Moreover, since the roof panel of patent document 3 is a panel integrated in the form which ensured the ventilation layer via the ventilation trunk edge, although it is excellent in workability, as mentioned above, in a complicated roof shape It is very complicated to produce a panel together.
本発明はこのような問題に鑑みなされたもので、製作が容易で、施工性に優れ、機能上も優れた遮熱効果を発揮する屋根の遮熱構造を、合理的に構築できる技術を提供することを目的とする。 The present invention has been made in view of such problems, and provides a technology capable of rationally constructing a heat insulating structure for a roof that is easy to manufacture, has excellent workability, and exhibits a heat insulating effect that is functionally superior. The purpose is to do.
本発明によれば、
（１）屋根骨格を基礎に構築される屋根の遮熱構造であって、
前記屋根骨格が複数の垂木を備え、
隣り合う前記垂木の間には、少なくとも１枚の遮熱パネルが配設され、
前記垂木は側面に長手方向に延在する溝を有し、
前記遮熱パネルの両辺が前記垂木の溝に嵌合していることを特徴とする屋根の遮熱構造が提供され、
（２）前記垂木の上端面に野地板が敷設され、前記野地板と前記遮熱パネルとの間に通気層を有することを特徴とする（１）記載の屋根の遮熱構造が提供され、
（３）複数の垂木を備える屋根骨格と、隣り合う前記垂木の間に配設された遮熱パネルと、を備える屋根の遮熱構造の施工方法であって、
前記遮熱パネルを前記垂木の側面の長手方向に延在する溝に嵌合させる工程を備えることを特徴とする屋根の遮熱構造の施工方法が提供され、
（４）前記工程は、前記遮熱パネルが前記垂木の軒側から挿入されることを特徴とする（３）記載の屋根の遮熱構造の施工方法が提供される。
According to the present invention,
(1) A heat insulating structure for a roof constructed on the basis of a roof skeleton,
The roof skeleton comprises a plurality of rafters;
Between the adjacent rafters, at least one heat shield panel is disposed,
The rafter has a groove extending in a longitudinal direction on a side surface;
Provided is a heat insulating structure for a roof, characterized in that both sides of the heat insulating panel are fitted in the rafter grooves,
(2) A roof heat insulating structure according to (1), wherein a field board is laid on the upper end surface of the rafter, and a ventilation layer is provided between the field board and the heat insulation panel,
(3) A construction method of a roof heat shielding structure comprising a roof skeleton comprising a plurality of rafters and a heat shield panel disposed between the adjacent rafters,
A method for constructing a heat insulation structure for a roof is provided, comprising a step of fitting the heat insulation panel into a groove extending in a longitudinal direction of a side surface of the rafter.
(4) In the step, the method for constructing a heat insulating structure for a roof according to (3) is provided, wherein the heat insulating panel is inserted from the eaves side of the rafter.
本発明の屋根の遮熱構造及びその施工方法は、遮熱パネルの両端部が垂木の溝に嵌合した構造である為、胴縁等のスペーサーを介在させることなく、容易に通気層を形成することができる。また、遮熱パネルが簡易な構成であり、遮熱パネルの端部を切除しても遮熱性能が損なわれることがない為、現場で容易に屋根に対応した形状・寸法に調整することができる。更に、垂木の側面に長手方向に延在する溝を形成している為、垂木の軒側から垂木間に容易に遮熱パネルを挿入することができ、屋根工事とほぼ同時に屋根の遮熱構造を完成させることができる。それ故、建設中の降雨による柱や梁の濡れ等を最小限にすることができるとともに、屋根骨格の傾斜面での足場が悪い状態での施工を避けることができる。 Since the heat insulating structure of the roof and the construction method thereof according to the present invention is a structure in which both ends of the heat insulating panel are fitted in the grooves of the rafters, a ventilation layer can be easily formed without interposing a spacer such as a trunk edge. can do. In addition, the heat shield panel has a simple configuration, and even if the end of the heat shield panel is cut off, the heat shield performance is not impaired, so it can be easily adjusted to the shape and dimensions corresponding to the roof on site. it can. In addition, since a groove extending in the longitudinal direction is formed on the side of the rafter, a heat insulation panel can be easily inserted between the rafter eaves and between the rafters. Can be completed. Therefore, it is possible to minimize the wetting of the pillars and beams due to the rain during construction, and it is possible to avoid the construction with a poor scaffolding on the inclined surface of the roof skeleton.
以下、本発明について詳細に説明する。
なお、以下に説明する構成は本発明を限定するものではなく、本発明の趣旨の範囲内で種々改変することができるものである。
Hereinafter, the present invention will be described in detail.
Note that the configuration described below does not limit the present invention and can be variously modified within the scope of the gist of the present invention.
先ず、図１乃至図３により、本実施形態に係る屋根の遮熱構造Sについて説明する。本発明の屋根の遮熱構造Ｓは、屋根骨格１と遮熱パネル２とを有している。屋根骨格１は、棟束１１ａと、この棟束１１ａを中心にこれに平行に立設する小屋束１１ｂと、棟束１１ａ及び小屋束１１ｂの下端部を受けて固定する梁１１ｃと、相対向するように平行に配設された棟束１１ａの天端間を架け渡すように配設される棟１２ａと、相対向するように平行に配設された小屋束１１ｂの天端間を架け渡すように配設されて互いに平行に配置された母屋１２ｂと、相対向するように平行に配設された梁１１ｃ間を架け渡すように配設される桁１２ｃと、棟１２ａと母屋１２ｂと桁１２ｃとを架け渡すように配設されて互いに平行に配設される垂木１３と、により形成されている。なお、本実施形態における屋根骨格１の各部材の名称は、屋根骨格１における部位を示すものであり、その素材を限定するものではない。従い、各部材の素材として、木材以外を使用しても良い。 First, with reference to FIGS. 1 to 3, the heat insulating structure S for a roof according to the present embodiment will be described. The roof heat insulating structure S of the present invention has a roof skeleton 1 and a heat insulating panel 2. The roof skeleton 1 is opposed to a ridge bundle 11a, a shed bundle 11b standing in parallel with the ridge bundle 11a, and a beam 11c that receives and fixes the lower ends of the ridge bundle 11a and the shed bundle 11b. The ridge 12a arranged so as to bridge between the top ends of the bunches 11a arranged in parallel so as to cross the top end of the shed bundle 11b arranged in parallel so as to face each other. The main building 12b arranged in parallel with each other, the girder 12c arranged so as to bridge between the beams 11c arranged in parallel so as to face each other, the ridge 12a, the main building 12b, and the girder The rafters 13 are arranged so as to span the bridge 12c and are arranged in parallel to each other. In addition, the name of each member of the roof skeleton 1 in this embodiment shows the site | part in the roof skeleton 1, and does not limit the raw material. Therefore, materials other than wood may be used as the material for each member.
垂木１３は、その側面１３ｂに遮熱パネル２を嵌合するための長手方向に延在する溝１３ａを有している。この溝１３ａは、長手方向に直線状に延在していることが好ましい。本発明においては、垂木１３に遮熱パネル２を嵌合するための溝１３ａを設けることにより、遮熱パネル２の両端部を垂木の溝１３ａに嵌合した構造とすることができ、野地板３と遮熱パネル２との間に通気層Ｔを形成することができる。垂木の溝１３ａは、通気・換気を効率的に行うことができる程度の通気層Ｔを確保できる位置に設けられていれば良く、特に制限するものではないが、通気層Ｔは１５ｍｍ以上の高さが確保されていることが好ましい。従い、垂木の溝１３ａは、垂木の上端面１３ｃから溝上部までの距離（ｈ）が１５ｍｍ以上の位置に形成されていることが好ましい。 The rafter 13 has a groove 13a extending in the longitudinal direction for fitting the heat shield panel 2 on its side surface 13b. This groove 13a preferably extends linearly in the longitudinal direction. In the present invention, by providing the rafters 13 with grooves 13a for fitting the heat shield panel 2, both ends of the heat shield panel 2 can be fitted to the rafter grooves 13a. A ventilation layer T can be formed between the heat shield panel 2 and the heat shield panel 2. The rafter groove 13a is not particularly limited as long as the rafter groove 13a is provided at a position where the ventilation layer T can be efficiently ventilated and ventilated. The ventilation layer T has a height of 15 mm or more. Is preferably ensured. Therefore, the rafter groove 13a is preferably formed at a position where the distance (h) from the upper end surface 13c of the rafter to the upper portion of the groove is 15 mm or more.
垂木の溝の深さ（ｄ１）は、遮熱パネル２を嵌合できる深さであれば良く、特に制限するものではないが、具体的には、５ｍｍ〜２０ｍｍである。垂木の溝の幅（ｄ２）は、遮熱パネル２を嵌合できる幅であれば良く、基本的に遮熱パネル２の厚さが基準となる。特に制限するものではないが、具体的には、遮熱パネル２の厚さ＋１〜３ｍｍである。遮熱パネル２を介して屋内の気密性を高める場合、遮熱パネル２の寸法を考慮して溝の深さ及び幅を適宜設計すれば良い。 The depth (d1) of the rafter groove is not particularly limited as long as it is a depth at which the heat shield panel 2 can be fitted, and is specifically 5 mm to 20 mm. The width (d2) of the rafter groove may be any width that allows the heat shield panel 2 to be fitted, and the thickness of the heat shield panel 2 is basically used as a reference. Although it does not restrict | limit in particular, Specifically, it is the thickness of the thermal insulation panel 2 + 1-3 mm. When the indoor airtightness is enhanced through the heat shield panel 2, the depth and width of the groove may be appropriately designed in consideration of the dimensions of the heat shield panel 2.
なお、本実施形態において、垂木の溝１３ａの形状を断面視でコの字型としているが、本発明はこれに限定されるものではなく、例えば、V字型、半円型、台形型、W字型等でも良い。これらの垂木の溝１３ａと遮熱パネル２の端部とを嵌合させる形状は、垂木の溝１３ａの形状と遮熱パネル２の端部形状とで相対的に設計すれば良い。また、遮熱パネル２の端部に垂木の溝１３ａに嵌合させる手段を設けて嵌合させても良い。 In the present embodiment, the shape of the rafter groove 13a is U-shaped in a cross-sectional view, but the present invention is not limited to this, for example, V-shaped, semicircular, trapezoidal, W shape etc. may be used. What is necessary is just to design relatively the shape which fits the groove | channel 13a of these rafters, and the edge part of the thermal insulation panel 2 with the shape of the groove | channel 13a of the rafter and the edge part shape of the thermal insulation panel 2. FIG. Further, a means for fitting into the rafter groove 13a may be provided at the end of the heat shield panel 2 for fitting.
隣り合う垂木１３の間に配置される矩形状の遮熱パネル２は、基板２ａ上に遮熱層２ｂを有する構成であり、該遮熱層２ｂが通気層Ｔの内底面となるよう垂木の溝１３ａに嵌合され配置される。本発明においては、遮熱パネル２の遮熱層２ｂが通気層Ｔの内底面を構成することにより、遮熱層２ｂが赤外線等の熱線を反射するとともに、遮熱層２ｂの輻射熱が周囲の空気に伝熱されたとしても該空気が該通気層Ｔを介して上部へ逃がされ、高い遮熱性を発揮できる。また、遮熱パネル２は、基板２ａ上に遮熱層２ｂを有する簡易な構成であり、遮熱パネル２の端部等を切除しても、遮熱層２ｂによる遮熱性能が損なわれることがない為、複雑な屋根形状等の場合でも、現場で容易に屋根に対応する形状・寸法に遮熱パネル２を調整することができる。なお、遮熱パネル２は、隣り合う垂木１３の間に複数枚を挿入していても良い。 The rectangular heat shield panel 2 disposed between the adjacent rafters 13 is configured to have a heat shield layer 2b on the substrate 2a, and the rafters so that the heat shield layer 2b becomes the inner bottom surface of the ventilation layer T. It is fitted and arranged in the groove 13a. In the present invention, the heat shield layer 2b of the heat shield panel 2 constitutes the inner bottom surface of the ventilation layer T, so that the heat shield layer 2b reflects heat rays such as infrared rays and the radiant heat of the heat shield layer 2b Even if heat is transferred to the air, the air is released to the upper part through the ventilation layer T, and high heat shielding properties can be exhibited. Further, the heat shield panel 2 has a simple structure having the heat shield layer 2b on the substrate 2a, and even if the end of the heat shield panel 2 is cut off, the heat shield performance by the heat shield layer 2b is impaired. Therefore, even in the case of a complicated roof shape or the like, the heat shield panel 2 can be easily adjusted to the shape and size corresponding to the roof on the site. Note that a plurality of the heat shield panels 2 may be inserted between the adjacent rafters 13.
遮熱層２ｂとしては、輻射熱に対して高反射性の素材から構成されていれば良く、特に制限するものではないが、例えば、アルミニウム箔等の金属薄膜、アルミニウム蒸着フィルム等の金属蒸着フィルムを用いることができる。また、遮熱層２ｂは、基板上に遮熱塗料を塗布して形成しても良い。なお、遮熱層２ｂは基材２ａの両面に設けられていても良い。 The heat shield layer 2b is not particularly limited as long as it is made of a material highly reflective to radiant heat. For example, a metal thin film such as an aluminum foil or a metal vapor deposited film such as an aluminum vapor deposited film is used. Can be used. Further, the heat shielding layer 2b may be formed by applying a heat shielding paint on the substrate. The heat shield layer 2b may be provided on both surfaces of the base material 2a.
基板２ａとしては、中密度繊維板、パーティクルボード、ＯＳＢボード等の木質ボード、合板、集成板、無垢板、合成樹脂板等を用いることができる。基板２ａの厚さとしては、特に制限するものではないが、例えば、５〜３５ｍｍであることが好ましく、５〜２５ｍｍであることがより好ましく、５〜１５ｍｍであることがさらに好ましい。遮熱パネル２に断熱性を付与する場合、基板自身を断熱材で構成しても良く、又断熱層を遮熱パネル２に設けても良い。遮熱パネル２に断熱層を設ける場合、断熱層を基板２ａと遮熱層２ｂとの間に介在させても良く、又基板２ａの遮熱層２ｂを有する面と反対側の面に設けても良い。断熱材としては、従来公知の素材を用いることができ、例えば、スチレン系樹脂発泡体、オレフィン系樹脂発泡体、ウレタン系樹脂発泡体、フェノール系樹脂発泡体、エポキシ系樹脂発泡体、或いはこれらを適宜混合した発泡体等の合成樹脂発泡体、グラスウール、ロックウール等を用いることができる。 As the substrate 2a, a wood board such as medium density fiber board, particle board, OSB board, plywood, laminated board, solid board, synthetic resin board, or the like can be used. Although it does not restrict | limit especially as thickness of the board | substrate 2a, For example, it is preferable that it is 5-35 mm, It is more preferable that it is 5-25 mm, It is further more preferable that it is 5-15 mm. When providing heat insulation to the heat shield panel 2, the substrate itself may be formed of a heat insulating material, and a heat insulating layer may be provided on the heat shield panel 2. When a heat insulating layer is provided on the heat insulating panel 2, the heat insulating layer may be interposed between the substrate 2a and the heat insulating layer 2b, or provided on the surface of the substrate 2a opposite to the surface having the heat insulating layer 2b. Also good. As the heat insulating material, conventionally known materials can be used, for example, styrene resin foam, olefin resin foam, urethane resin foam, phenol resin foam, epoxy resin foam, or these. Synthetic resin foams such as foams, glass wool, rock wool, and the like can be used as appropriate.
次に、本実施形態に係る屋根の遮熱工法について説明する。
先ず、工程１で垂木の側面１３ｂに遮熱パネルを嵌合するための長手方向に延在する溝１３ａを形成する。（溝形成工程）この溝形成工程は、現場で加工しても、事前にプレカットしておいても良いが、現場での施工性の観点から、垂木の溝１３ａは事前にプレカットしておくことが好ましい。
Next, the roof thermal insulation method according to this embodiment will be described.
First, in step 1, a groove 13a extending in the longitudinal direction for fitting the heat shield panel is formed on the side surface 13b of the rafter. (Groove forming step) This groove forming step may be processed on site or precut in advance, but from the viewpoint of workability on site, the rafter groove 13a should be precut in advance. Is preferred.
次いで、工程２で屋根骨格１を組み立てる。このとき、垂木１３は、棟１２ａと複数の母屋１２ｂと桁１２ｃとを架け渡すように配置され、これらの上部に釘等で固定される。また、垂木１３は、遮熱パネル２を嵌合するための長手方向に延在する溝を有する側面１３ｂが鉛直方向となるよう、互いに平行に配置される。（垂木設置工程） Next, in step 2, the roof skeleton 1 is assembled. At this time, the rafter 13 is disposed so as to bridge the ridge 12a, the plurality of purlins 12b, and the girders 12c, and is fixed to these upper portions with nails or the like. The rafters 13 are arranged in parallel to each other so that the side surface 13b having a groove extending in the longitudinal direction for fitting the heat shield panel 2 is in the vertical direction. (Rafter installation process)
次いで、工程３で矩形状の遮熱パネル２を、遮熱パネル２の両端部が垂木の溝１３ａに嵌合するよう垂木の軒側（垂木の木口面１３ｅ）から挿入し、隣り合う垂木１３の間に遮熱パネル２を配置する。（遮熱パネル設置工程）このとき、遮熱パネル２は、必要に応じて釘や接着剤等で垂木１３に固定する。垂木の溝に嵌合した遮熱パネルの端部と該溝との間に隙間がある場合、にシーリング材等で隙間をシールしても良い。 Next, in Step 3, the rectangular heat shield panel 2 is inserted from the eave side of the rafter (the rafter end face 13e) so that both ends of the heat shield panel 2 fit into the rafter groove 13a, and the adjacent rafter 13 The heat shield panel 2 is disposed between the two. (Heat-shielding panel installation process) At this time, the heat-shielding panel 2 is fixed to the rafter 13 with a nail, an adhesive agent, or the like as necessary. If there is a gap between the end of the heat shield panel fitted in the rafter groove and the groove, the gap may be sealed with a sealing material or the like.
その後、工程４で垂木の上端面１３ｃに野地板３を敷設するとともに、ルーフィング施工及び屋根材施工を行い、屋根を完成させる。このように、本発明においては、垂木１３に遮熱パネル２を嵌合するための溝１３ａを形成しておくことで、胴縁等のスペーサーを介在させることなく、野地板３と遮熱パネル３との間に通気層Ｔを形成することができる。また、遮熱パネル２は、基板２ａ上に遮熱層２ｂを有する簡易な構成であり、遮熱パネルの端部等を切除しても、遮熱層による遮熱性能が損なわれることがない為、複雑な屋根形状等の場合でも、現場で容易に屋根に対応する形状・寸法に遮熱パネルを調整することができ、現場での施工性に優れる。更に、垂木の側面に長手方向に延在する溝を形成している為、垂木の軒側から垂木間に容易に遮熱パネルを挿入することができ、屋根工事とほぼ同時に屋根の遮熱構造を完成させることができる。 Thereafter, in step 4, the base plate 3 is laid on the upper end surface 13c of the rafter, and roofing construction and roofing material construction are performed to complete the roof. As described above, in the present invention, by forming the groove 13a for fitting the heat shield panel 2 to the rafter 13, the base plate 3 and the heat shield panel can be obtained without interposing a spacer such as a trunk edge. 3 can form a ventilation layer T. The heat shield panel 2 has a simple structure having the heat shield layer 2b on the substrate 2a, and the heat shield performance by the heat shield layer is not impaired even if the end of the heat shield panel is cut off. Therefore, even in the case of a complicated roof shape, the heat shield panel can be easily adjusted to the shape and dimensions corresponding to the roof at the site, and the workability at the site is excellent. In addition, since a groove extending in the longitudinal direction is formed on the side of the rafter, a heat insulation panel can be easily inserted between the rafter eaves and between the rafters. Can be completed.
なお、本発明においては、垂木１３の軒側から垂木間に容易に遮熱パネル２を挿入できる為、垂木設置工程後、遮熱パネル設置工程を後にし、先に野地板３の敷設やルーフィング施工等を行い、屋根を完成させても良い。このような工法とすることにより、建設中の降雨による柱や梁の濡れ等を最小限にすることができる。また、垂木の溝１３ａは、垂木設置工程後、つまりは屋根骨格が組み上がった後に形成しても良い。 In the present invention, since the heat shield panel 2 can be easily inserted between the rafters from the eave side of the rafters 13, the heat shield panel installation process is performed after the rafter installation process, and then the laying and roofing of the base plate 3 are performed first. Construction may be performed to complete the roof. By adopting such a construction method, wetting of columns and beams due to rain during construction can be minimized. Further, the rafter groove 13a may be formed after the rafter installation step, that is, after the roof skeleton is assembled.
１：屋根骨格
１１ａ：棟束
１１ｂ：小屋束
１１ｃ：梁
１２ａ：棟
１２ｂ：母屋
１２ｃ：桁
１３：垂木
１３ａ：垂木の溝
１３ｂ：垂木の側面
１３ｃ：垂木の上端面
１３ｄ：垂木の下端面
１３ｅ：垂木の木口面
２：遮熱パネル
２ａ：基板
２ｂ：遮熱層
３：野地板
ｄ１：垂木の溝の深さ
ｄ２：垂木の溝の幅
ｈ：垂木の上端面から溝上部までの距離
Ｓ：遮熱構造
Ｔ：通気層
1: roof skeleton 11a: ridge bundle 11b: shed bundle 11c: beam 12a: ridge 12b: purlin 12c: girder 13: rafter 13a: rafter groove 13b: rafter side surface 13c: rafter upper end surface 13d: rafter lower end surface 13e: Rafter wood front surface 2: heat shield panel 2a: substrate 2b: heat shield layer 3: field board d1: rafter groove depth d2: rafter groove width h: distance from the top edge of the rafter to the top of the groove S: Thermal insulation structure T: Ventilation layer
Claims (4)
前記屋根骨格が複数の垂木を備え、
隣り合う前記垂木の間には、少なくとも１枚の遮熱パネルが配設され、
前記垂木は側面に長手方向に延在する溝を有し、
前記遮熱パネルの両辺が前記垂木の溝に嵌合していることを特徴とする屋根の遮熱構造。 A heat insulating structure for a roof constructed on the basis of a roof skeleton,
The roof skeleton comprises a plurality of rafters;
Between the adjacent rafters, at least one heat shield panel is disposed,
The rafter has a groove extending in a longitudinal direction on a side surface;
The roof heat-insulating structure, wherein both sides of the heat-insulating panel are fitted into the rafter grooves.
前記遮熱パネルを前記垂木の側面の長手方向に延在する溝に嵌合させる工程を備えることを特徴とする屋根の遮熱構造の施工方法。 It is a construction method of a heat insulation structure of a roof comprising a roof skeleton comprising a plurality of rafters and a heat insulation panel disposed between the adjacent rafters,
The construction method of the heat insulation structure of the roof characterized by including the process of fitting the said heat insulation panel in the groove | channel extended in the longitudinal direction of the side surface of the said rafter.
The said process WHEREIN: The said thermal insulation panel is inserted from the eaves side of the said rafter, The construction method of the thermal insulation structure of the roof of Claim 3 characterized by the above-mentioned.
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| JP2004100352A (en) * | 2002-09-12 | 2004-04-02 | Hometerior U:Kk | Attic heat insulation device of house |
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