JP2007291640A - Heat-insulating material for outside joint of steel-framed column and the like, and heat-insulating structure using it - Google Patents

Heat-insulating material for outside joint of steel-framed column and the like, and heat-insulating structure using it Download PDF

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JP2007291640A
JP2007291640A JP2006118068A JP2006118068A JP2007291640A JP 2007291640 A JP2007291640 A JP 2007291640A JP 2006118068 A JP2006118068 A JP 2006118068A JP 2006118068 A JP2006118068 A JP 2006118068A JP 2007291640 A JP2007291640 A JP 2007291640A
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insulating material
heat insulating
steel column
heat
steel
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JP4309899B2 (en
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Isao Imura
功 井村
Yosuke Fujiwara
陽介 藤原
Kiyoshi Tanaka
潔 田中
Hiroshi Nanaoka
寛 七岡
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Asahi Fiber Glass Co Ltd
Daiwa House Industry Co Ltd
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Daiwa House Industry Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat-insulating material with proper constructibility, which is suitable for the outdoor-side heat insulation of the steel-framed column etc. of a building. <P>SOLUTION: In this heat-insulating material for an outside joint, a front side of an inorganic fibrous heat-insulating material 1 with a density of 98 kg/m<SP>3</SP>or more is reinforced with a skin material 2 which is constituted by superposing an aluminum layer 5 on the top surface of a base net-like body 4, and a backside of the heat-insulating material 1 is reinforced with glass paper 3. After the heat-insulating material for the outside joint is attached to the outdoor side of the steel-framed column etc. with an adhesive tape, an exterior wall panel is mounted for the construction of an exterior wall. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、鉄骨柱等の外側目地用断熱材及びそれを用いた断熱構造に関する。   The present invention relates to an outer joint heat insulating material such as a steel column and a heat insulating structure using the same.

近年、一般住宅では施工性と耐震性が優れているという面から鉄骨製の建物が多く採用されるようになっている。特にこのような鉄骨製の建物ではあらかじめパネル化された外壁体を鉄骨柱等に取り付け施工することによって外壁を構築できるので、現場での施工が少なくて済み工期の短縮が図れる。その典型的な建築構造が特許文献１に開示されている。この建築構造は図５に示すように断熱材２５が装填されているパネルフレーム２４が鉄骨柱２０に取り付けられており、このパネルフレームの室外側に外装材２９が例えば発泡プラスチック系断熱材３０とグラスウールボードのような繊維系断熱材２８からなる外断熱材を介在させて取り付けされ、またパネルフレームの室内側には石膏ボードなどの内壁材２３が鉄骨柱２０との間に断熱材２２を設けて縦桟２１に取り付けられている。そして、これらの外装材２９及び内壁材２３は、パネルフレームの中央内部に組み込まれた桟２６によって適宜支持される。   In recent years, many steel buildings have been adopted in ordinary houses because of their excellent workability and earthquake resistance. In particular, in such a steel frame building, the outer wall can be constructed by attaching and constructing an outer wall body that has been made into a panel in advance to a steel column or the like, so that construction on the site is reduced and the construction period can be shortened. The typical building structure is disclosed in Patent Document 1. In this building structure, as shown in FIG. 5, a panel frame 24 loaded with a heat insulating material 25 is attached to a steel column 20, and an exterior material 29 is, for example, a foamed plastic heat insulating material 30 on the outside of the panel frame. It is attached with an external heat insulating material made of fiber-based heat insulating material 28 such as glass wool board interposed, and an inner wall material 23 such as a gypsum board is provided between the steel column 20 and the inner wall material 23 such as gypsum board. Attached to the vertical beam 21. And these exterior material 29 and inner wall material 23 are suitably supported by the crosspiece 26 incorporated in the center inside of a panel frame.

このような建築構造において、熱伝導性の良い鉄骨柱１における断熱は重要であり、具体的には鉄骨柱１の室外側の断熱は外断熱構造の一環としてあらかじめパネルフレーム３にパネル化された外断熱材によって行なわれている。また室内側の断熱は鉄骨柱１の内部と、室内側にグラスウールなどの断熱材２５を装填することによって断熱している。
特開２００２‐３４８９８１号公報 In such a building structure, heat insulation in the steel column 1 with good thermal conductivity is important. Specifically, the heat insulation on the outdoor side of the steel column 1 is panelized in advance in the panel frame 3 as part of the outer heat insulation structure. This is done with external insulation. Further, the heat insulation on the indoor side is performed by loading the inside of the steel column 1 and the heat insulating material 25 such as glass wool on the indoor side.
Japanese Patent Laid-Open No. 2002-348881

上記外壁構造において、鉄骨柱１の室外側は上記したようにパネル化された外断熱材７によって断熱されているが、この外断熱材７には外装材５が取り付けられると共に隣接する外壁パネルの継ぎ目として目地部を形成している。この目地部は鉄骨柱１の丁度室外側に位置するために断熱と防水対策が重要であり、一般的には外装材５の目地部を目地シール材（防水パッキン）でシールする。   In the outer wall structure, the outdoor side of the steel column 1 is thermally insulated by the outer heat insulating material 7 formed into a panel as described above, and the outer heat insulating material 7 is attached with the exterior material 5 and the adjacent outer wall panel. A joint is formed as a joint. Since this joint portion is located just outside the steel column 1, heat insulation and waterproofing measures are important. In general, the joint portion of the exterior member 5 is sealed with a joint sealing material (waterproof packing).

しかしながら、この目地部は外断熱材で充分に断熱されずに鉄骨柱１に向かって隙間が形成されているため、鉄骨柱の室外側の断熱が充分に得られないという問題があった。また、この目地部に目地シール材の受け部材がないために目地シールの作業性が悪く、安定したシールが得られ難いという問題があった。   However, since the joint portion is not sufficiently insulated by the outer heat insulating material and a gap is formed toward the steel column 1, there is a problem that sufficient heat insulation outside the steel column cannot be obtained. Further, since there is no receiving member for the joint sealing material at the joint, there is a problem that the workability of the joint sealing is poor and it is difficult to obtain a stable seal.

そこで、外装材の目地シール材の受け部材として、断熱性と防火性を有する目地用断熱材が強く求められている。   Therefore, joint heat insulating materials having heat insulating properties and fireproof properties are strongly demanded as receiving members for joint sealing materials for exterior materials.

本発明は上記問題に鑑みてなされたものであり、鉄骨柱等の室外側に簡単に適用でき、鉄骨柱の室外部を効率的に断熱するとともに目地シール材や水切り材の受け部材として機能を有する、鉄骨柱等の外側目地用断熱材及びそれを用いた断熱構造を提供することを目的とする。   The present invention has been made in view of the above problems, and can be easily applied to the outside of a steel column or the like, and can efficiently insulate the outside of the steel column and function as a receiving member for joint sealing materials and draining materials. It aims at providing the heat insulation material for outer joints, such as a steel column, and the heat insulation structure using the same.

本発明の要旨は以下のとおりである。
（１） 密度が９８ｋｇ／ｍ３以上の無機繊維断熱材の片側面が、格子網状体の上面にアルミ層を層成してなる表皮材で補強され、もう一方の片側面がガラスペーパーで補強されていることを特徴とする鉄骨柱等の外側目地用断熱材。
（２） 前記表皮材がポリオレフィン系樹脂からなる割繊維不織布にアルミ箔を圧着してなる上記（１）に記載の鉄骨柱等の外側目地用断熱材。
（３） 帯状無機繊維断熱材がグラスウールである上記（１）又は（２）に記載の鉄骨柱等の外側目地用断熱材。
（４） 上記（１）〜（３）のいずれかに記載の外側目地用断熱材が鉄骨柱等の室外側に接着テープで装着されており、該外側目地用断熱材の室外側に水切り部材が装着されており、該水切り部材の室外側に外壁体が施工されていることを特徴とする鉄骨柱等の室外側断熱構造。
（５） 外壁体がパネル化されている上記（４）に記載の鉄骨柱等の室外側断熱構造。 The gist of the present invention is as follows.
(1) One side of an inorganic fiber heat insulating material having a density of 98 kg / m 3 or more is reinforced with a skin material in which an aluminum layer is formed on the upper surface of a lattice network, and the other side is reinforced with glass paper. A heat insulating material for outside joints such as steel columns.
(2) The heat insulating material for outer joints such as a steel column as described in (1) above, wherein the skin material is formed by crimping an aluminum foil to a split fiber nonwoven fabric made of a polyolefin resin.
(3) The heat insulating material for outer joints such as a steel column according to (1) or (2), wherein the band-shaped inorganic fiber heat insulating material is glass wool.
(4) The outer joint heat insulating material according to any one of the above (1) to (3) is attached to the outdoor side of a steel column or the like with an adhesive tape, and a draining member is provided on the outer side of the outer joint heat insulating material. Is installed, and the outer wall body is constructed on the outdoor side of the draining member.
(5) The outdoor heat insulating structure such as a steel column according to the above (4), in which the outer wall body is panelized.

本発明の外側目地用断熱材は、上記したように高密度の無機繊維断熱材の片面が格子網状体（補強層）とアルミ層とからなる表皮材で補強され、もう一方の片面がガラスペーパーで補強されているので、鉄骨柱等の室外側を前記繊維状断熱材とアルミ層とによって効率よく断熱できると共に目地シール材を支持することができる。   As described above, the outer joint heat insulating material of the present invention has one surface of the high-density inorganic fiber heat insulating material reinforced with a skin material composed of a lattice network (reinforcing layer) and an aluminum layer, and the other surface is made of glass paper. Thus, the outdoor side of the steel column or the like can be efficiently insulated by the fibrous heat insulating material and the aluminum layer, and the joint seal material can be supported.

また、ガラスペーパーで補強されている裏面が平滑になっているので、鉄骨柱等の室外側に接着テープによって容易に取り付け施工でき、さらに施工時等において屈折しても表皮材の格子網状体（補強層）によって保持され分離されないので施工性に優れている。   In addition, since the back surface reinforced with glass paper is smooth, it can be easily installed on the outside of a steel column or the like with an adhesive tape, and even if it is refracted during construction, etc. Since it is held by the reinforcing layer and is not separated, the workability is excellent.

本発明において鉄骨柱等の外側目地用断熱材は、密度が９８ｋｇ／ｍ３以上の帯状無機繊維断熱材の表面（外側）を格子網状体（補強層）の上面にアルミ層を層成した表皮材で補強し、裏面（内側）をガラスペーパーで補強してなる。この外側目地用断熱材は断熱性と防火性を兼ね備えており、外壁体が取り付け施工される鉄骨柱等の室外側に適用されて断熱材及び外装材の目地シール材の受け部材として有用である。ここで、鉄骨柱等とは建物の外壁体を取り付けする鉄骨柱や梁のような建物の鉄骨構造体を意味する。 In the present invention, a heat insulating material for outer joints such as steel columns is a skin in which the surface (outside) of a strip-like inorganic fiber heat insulating material having a density of 98 kg / m 3 or more is formed on the upper surface of a lattice network (reinforcing layer) with an aluminum layer. It is reinforced with a material, and the back surface (inner side) is reinforced with glass paper. This heat insulating material for outside joints has both heat insulating properties and fire resistance, and is useful as a receiving member for joint sealing materials for heat insulating materials and exterior materials by being applied to the outdoor side of steel columns and the like to which outer wall bodies are attached and constructed. . Here, a steel column or the like means a steel frame structure of a building such as a steel column or beam to which an outer wall of the building is attached.

上記無機繊維断熱材としては、グラスウール、ロックウールなどの耐熱性のある窯業系繊維が挙げられるが、生産性よく低コストで製造できかつ断熱性能の優れるグラスウール（ガラス短繊維）は特に好ましい。無機繊維断熱材は密度が９８ｋｇ／ｍ３以上、好ましくは１２０ｋｇ／ｍ３以上、より好ましくは１３０ｋｇ／ｍ３以上である高密度のものが使用される。このように高密度の無機繊維断熱材を用いる理由は、適度の剛性を有し保形性がよいので容易にボード状に形成しやすく、断面が扁平な矩形状の長尺体が容易に得られるからである。密度が９８ｋｇ／ｍ３より小さい低密度の無機繊維断熱材では、ボード状に形成し難く、長尺で薄い場合には簡単に折れてしまうため施工性が悪くなるので好ましくない。また、無機繊維断熱材の密度の上限は特に限定されないが、密度が大きくなると重くなり経済的にも不利となる。これらを考慮して無機繊維断熱材の密度としては４００ｋｇ／ｍ３以下が好ましい。 Examples of the inorganic fiber heat insulating material include heat-resistant ceramic fibers such as glass wool and rock wool. Glass wool (glass short fiber) that can be manufactured with high productivity and at low cost and has excellent heat insulating performance is particularly preferable. The inorganic fiber heat insulating material having a density of 98 kg / m 3 or more, preferably 120 kg / m 3 or more, more preferably 130 kg / m 3 or more is used. The reason for using such a high-density inorganic fiber heat insulating material is that it has an appropriate rigidity and good shape retention, so it can be easily formed into a board shape, and a rectangular body with a flat cross section can be easily obtained. Because it is. A low-density inorganic fiber heat insulating material having a density of less than 98 kg / m 3 is not preferable because it is difficult to form in a board shape and easily breaks when it is long and thin. Moreover, although the upper limit of the density of an inorganic fiber heat insulating material is not specifically limited, if a density becomes large, it will become heavy and will become economically disadvantageous. Considering these, the density of the inorganic fiber heat insulating material is preferably 400 kg / m 3 or less.

したがって、無機繊維断熱材がグラスウールの場合、このグラスウールの密度は断熱材として一般的に使用されている低密度（例えば８０ｋｇ／ｍ３以下）のグラスウールより高い。このような高密度のグラスウールは、通常のグラスウールの製造工程において繊維化されたガラス短繊維を所望の密度と厚さが得られるまで圧縮し、この状態で繊維同士をバインダーで固着し板状にすることによって得ることができる。 Therefore, when the inorganic fiber heat insulating material is glass wool, the density of the glass wool is higher than that of low density (for example, 80 kg / m 3 or less) glass wool generally used as a heat insulating material. Such high-density glass wool compresses short glass fibers that have been fiberized in the normal glass wool production process until the desired density and thickness are obtained, and in this state the fibers are fixed together with a binder into a plate shape. Can be obtained.

本発明において上記表皮材は無機繊維断熱材の表面補強材で、格子網状体の上にアルミ層を層成してなる複合構造を有している。このアルミ層は熱反射によって断熱性能を向上させる機能と防火性を有し、格子網状体との複合化が容易であることから通常アルミ箔が使用されるが、格子網状体に直接アルミ蒸着層として形成してもよい。アルミ箔の場合、格子網状体との複合化は圧着又は接着によって行うことができる。この場合、アルミ箔の厚さとしては７〜５０μｍが好ましい。この範囲の厚さを有していれば強度的にも問題なく、格子網状体との複合化も容易にできる。なお、厚さの上限は５０μｍより厚くしてもコスト高になるばかりで性能面ではほとんど変わりないので便宜的に決めたものである。   In the present invention, the skin material is a surface reinforcing material of an inorganic fiber heat insulating material and has a composite structure in which an aluminum layer is formed on a lattice network. This aluminum layer has a function to improve heat insulation performance by heat reflection and fire resistance, and since it can be easily combined with the lattice network, an aluminum foil is usually used. You may form as. In the case of an aluminum foil, the composite with the lattice network can be performed by pressure bonding or adhesion. In this case, the thickness of the aluminum foil is preferably 7 to 50 μm. If the thickness is in this range, there is no problem in strength, and it can be easily combined with the lattice network. It should be noted that the upper limit of the thickness is determined for the sake of convenience, since even if it is thicker than 50 μm, the cost is increased and the performance is hardly changed.

一方、格子網状体の主な役割は無機繊維断熱材の表面を補強することにあるが、同時にアルミ層の担体として格子網状体を介することによりアルミ層を無機繊維断熱材の表面に簡単に被着させることができる。具体的には格子網状体を無機繊維断熱材の表面に貼り付けることによって無機繊維断熱材の表面を表皮材で補強し、同時に無機繊維断熱材の表面をアルミ層で被覆するものである。このため格子網状体として、割繊維不織布、ポリエチレン又はポリプロピレンからなるネット状物、有機繊維不織布、ガラススクリムクロス、ガラス繊維不織布などが挙げられる。好ましくは、ポリエチレン系樹脂、ポリプロピレン系樹脂などのポリオレフィン系樹脂からなる割繊維不織布が用いられ、例えば、ポリオレフィン系樹脂からなる割繊維不織布として、日石ワリフ（商品名）が好ましく用いることができる。この割繊維不織布は、例えば延伸強化された多層ポリオレフィンの割繊維を、縦・横に連続的に積層、熱融着してメッシュ構造にしたもので、このメッシュ構造により通気性、通水性、透光性などの特性をもちながら、軽量で高強度を維持し優れた特性を有している。そして、このメッシュ構造は表面の微細な凹凸により格子網状体とアルミ層との複合化にも好適する。なお、格子網状体の厚さは限定されないが、実用的には５０〜２００μｍ程度が好ましく、典型的には１００μｍ程度である。   On the other hand, the main role of the lattice network is to reinforce the surface of the inorganic fiber heat insulating material, but at the same time, the aluminum layer can be easily covered on the surface of the inorganic fiber heat insulating material by interposing the lattice network as a carrier for the aluminum layer. Can be worn. Specifically, the surface of the inorganic fiber heat insulating material is reinforced with a skin material by attaching a lattice network to the surface of the inorganic fiber heat insulating material, and at the same time, the surface of the inorganic fiber heat insulating material is covered with an aluminum layer. For this reason, examples of the lattice network include split fiber nonwoven fabrics, nets made of polyethylene or polypropylene, organic fiber nonwoven fabrics, glass scrim cloths, and glass fiber nonwoven fabrics. Preferably, a split fiber nonwoven fabric made of polyolefin resin such as polyethylene resin and polypropylene resin is used. For example, Nisseki Warif (trade name) can be preferably used as the split fiber nonwoven fabric made of polyolefin resin. This split fiber nonwoven fabric is, for example, a stretched and reinforced multilayer polyolefin split fiber that is continuously laminated vertically and horizontally and heat-sealed into a mesh structure. This mesh structure allows air permeability, water permeability, permeability. While having characteristics such as lightness, it is lightweight and maintains excellent strength and has excellent characteristics. And this mesh structure is suitable also for composite | combination of a lattice network and an aluminum layer by the fine unevenness | corrugation of the surface. The thickness of the lattice network is not limited, but is practically about 50 to 200 μm, and typically about 100 μm.

本発明において上記ガラスペーパーはガラス繊維をサイジング剤で結合してペーパー状にしたもので、このガラスペーパーを無機繊維断熱材の裏面に貼り付けすることにより、無機繊維断熱材の裏面を補強できる。また、非常にラフな無機繊維断熱材の表面をガラスペーパーで覆うことによって平滑化でき、防火性にも優れている。つまり、無機繊維断熱材の外面はそのままでは接着に馴染まない凹凸を有しているが、ガラスペーパーで覆うことによってガラスペーパー自体の平滑な表面が得られる。これにより、外側目地用断熱材を鉄骨柱等に例えば両面接着テープで簡便に取り付け施工できる。このガラスペーパーとしては公知のものを適宜使用でき、その厚さ及び製造方法は特定されないが、目付けとしては所望の強度が得られるためには約１５〜６０ｇ／ｍ２が好ましく、典型的には約２５ｇ／ｍ２である。 In the present invention, the glass paper is obtained by bonding glass fibers with a sizing agent into a paper shape. By sticking the glass paper to the back surface of the inorganic fiber heat insulating material, the back surface of the inorganic fiber heat insulating material can be reinforced. Moreover, it can smooth | blunt by covering the surface of a very rough inorganic fiber heat insulating material with glass paper, and is excellent also in fireproofing property. That is, the outer surface of the inorganic fiber heat insulating material has irregularities that are not suitable for adhesion as it is, but by covering with glass paper, a smooth surface of the glass paper itself can be obtained. Thereby, the heat insulating material for outer joints can be easily attached to a steel column or the like with, for example, a double-sided adhesive tape. As this glass paper, known ones can be used as appropriate, and the thickness and production method thereof are not specified, but the basis weight is preferably about 15 to 60 g / m 2 in order to obtain a desired strength, typically About 25 g / m 2 .

次に、本発明の外側目地用断熱材の好ましい実施形態を図面に基づいて説明する。
図１は外側目地用断熱材６の構成を示す分解図である。図１に示すように外側目地用断熱材６は無機繊維断熱材１の表面に表皮材２を貼り付けて補強し、裏面にガラスペーパー３を貼り付けて補強することにより構成される。本例では例えば密度が約１４０ｋｇ／ｍ３のグラスウールからなる長尺状の無機繊維断熱材１の表面に、ポリオレフィン系樹脂からなる割繊維不織布（日石ワリフ：商品名）４の上面に厚さ約７μｍのアルミ箔５を圧着してなる表皮材２を接着し、裏面に目付け約２５ｇ／ｍ２のガラスペーパー２を接着し補強している。 Next, preferred embodiments of the outer joint heat insulating material of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded view showing the configuration of the outer joint heat insulating material 6. As shown in FIG. 1, the outer joint heat insulating material 6 is configured by attaching and reinforcing a skin material 2 on the surface of the inorganic fiber heat insulating material 1 and attaching glass paper 3 on the back surface thereof. In this example, for example, a thickness is formed on the surface of a long inorganic fiber heat insulating material 1 made of glass wool having a density of about 140 kg / m 3 and on the upper surface of a split fiber non-woven fabric (Nisseki Warif: trade name) 4 made of polyolefin resin. bonding the skin material 2 formed by crimping the aluminum foil 5 to about 7 [mu] m, are bonded reinforced glass paper 2 having a basis weight of about 25 g / m 2 on the rear surface.

この場合、表皮材２及びガラスペーパー３は所定の寸法に切断された無機繊維断熱材１に接着することも可能であるが、グラスウールに表皮材２及びガラスペーパー３を接着してから所定の寸法に切断する方が生産性や品質の安定の点で好ましい。つまり、無機繊維断熱材１は例えば幅約２００ｃｍに連続製造されたボード状のグラスウールを所定の寸法に切断して得られるので、該グラスウールの全面に表皮材２及びガラスペーパー３を接着してから切断すると、接着作業が容易であり、しかも接着された状態で切断するため高品質の外側目地用断熱材６を得ることができる。無機繊維断熱材１と表皮材２、及び無機繊維断熱材１とガラスペーパー３を接着する場合、点状、線状又は全面での接着が可能であるが、通常は簡単に剥離しない程度に点状又は線状に接着されていればよく、必ずしも全面で接着されていなくてもよい。なお、表皮材２の接着剤としては、例えばホットメルト接着剤、水性接着剤、溶剤系接着剤などが使用でき、特に乾燥工程が不要なホットメルト接着剤を用いることが好ましい。   In this case, the skin material 2 and the glass paper 3 can be bonded to the inorganic fiber heat insulating material 1 cut to a predetermined size, but the predetermined size is obtained after the skin material 2 and the glass paper 3 are bonded to glass wool. It is preferable to cut it into two in terms of productivity and quality stability. That is, since the inorganic fiber heat insulating material 1 is obtained by cutting board-shaped glass wool continuously produced to a width of about 200 cm into predetermined dimensions, for example, the skin material 2 and the glass paper 3 are bonded to the entire surface of the glass wool. When cut, the bonding work is easy, and since the cutting is performed in the bonded state, the high-quality heat insulating material 6 for the outer joint can be obtained. When the inorganic fiber heat insulating material 1 and the skin material 2 and the inorganic fiber heat insulating material 1 and the glass paper 3 are bonded to each other, it can be bonded in the form of dots, lines, or the entire surface, but is usually not easily peeled off. As long as it is bonded in a linear or linear shape, it does not necessarily have to be bonded on the entire surface. As the adhesive for the skin material 2, for example, a hot-melt adhesive, a water-based adhesive, a solvent-based adhesive, and the like can be used. It is particularly preferable to use a hot-melt adhesive that does not require a drying step.

上記外側目地用断熱材６において、厚さ及び幅はこの外側目地用断熱材６を適用する箇所に合わせて適宜決められる。例えば厚さは、鉄骨柱等に取り付け施工される外壁体の目地部において、鉄骨柱等と外壁体との間に形成される隙間の奥行き寸法と同じかそれより小さく設定される。さらに、外側目地用断熱材６の外側に後述の水切り部材を設ける場合には、この水切り部材の厚さを加味した厚さが前記奥行き寸法とほぼ同等になるように設定することが好ましい。また、外側目地用断熱材６の幅が鉄骨柱等と外壁体との間に形成される隙間の幅より大きいと、外壁体の取り付けに支障となるので、外側目地用断熱材６の幅は該隙間の幅と同じかそれより若干小さ目に設定することが好ましい。典型的な外側目地用断熱材６の一例を挙げれば、厚さは約８ｍｍ、幅は約５５ｍｍである。   In the outer joint heat insulating material 6, the thickness and width are appropriately determined according to the location to which the outer joint heat insulating material 6 is applied. For example, the thickness is set to be equal to or smaller than the depth dimension of the gap formed between the steel column or the like and the outer wall body at the joint portion of the outer wall body that is attached to the steel column or the like. Furthermore, when a draining member described later is provided outside the heat insulating material 6 for the outer joint, it is preferable that the thickness including the thickness of the draining member is set to be substantially equal to the depth dimension. Further, if the width of the outer joint heat insulating material 6 is larger than the width of the gap formed between the steel column or the like and the outer wall body, it will hinder the mounting of the outer wall body. It is preferable to set it to be the same as or slightly smaller than the width of the gap. An example of a typical outer joint heat insulating material 6 has a thickness of about 8 mm and a width of about 55 mm.

一方、外側目地用断熱材６の長さは特に大きな制約はないが、短すぎると多数の外側目地用断熱材６を鉄骨柱等に沿って繋いで取り付けなければならないため、作業性が悪くなるおそれが生じるばかりでなく製造も煩雑さを増すので好ましくない。逆に長すぎると、折れやすくなるとともに取扱い性や施工性が悪化する。外側目地用断熱材６の長さとしては、これらを考慮して６００〜２６００ｍｍ程度が好ましく、典型的には約１３００ｍｍである。なお、外側目地用断熱材６は使用現場において適宜所望の寸法に短く切断して使用することも可能である。   On the other hand, the length of the outer joint heat insulating material 6 is not particularly limited. However, if the outer joint heat insulating material 6 is too short, a large number of outer joint heat insulating materials 6 have to be attached along the steel columns and the workability is deteriorated. This is not preferable because it not only causes fear but also increases complexity. Conversely, when too long, it will become easy to break and handleability and workability will deteriorate. In consideration of these, the length of the outer joint heat insulating material 6 is preferably about 600 to 2600 mm, and typically about 1300 mm. The outer joint heat insulating material 6 can be used by cutting it to a desired dimension as appropriate at the site of use.

図２は、上記外側目地用断熱材６を用いた鉄骨柱等の外側目地部の断熱構造の一例を示したものである。本例では外壁体は予めパネル化された状態で鉄骨柱１の両側に取り付け施工される。外壁体をこのように予めパネル化しておくと（以下、パネル化された外壁体を外壁パネルという）、外壁パネルとして組立てられているものを現場で取り付けするだけで外壁体を構築できるため施工効率がよく工期が短縮できる、あるいは規格化により安定した品質が得られるなどの理由で特に鉄骨建築に適している。この外壁パネル自体は特に新規である必要はなく公知のものが適用できるので詳述はしないが、その一例を図４に従って概説する。   FIG. 2 shows an example of a heat insulating structure of an outer joint portion such as a steel column using the outer joint heat insulating material 6. In this example, the outer wall body is attached and constructed on both sides of the steel column 1 in a paneled state in advance. If the outer wall body is panelized in this way (hereinafter, the paneled outer wall body is referred to as the outer wall panel), it is possible to construct the outer wall body simply by attaching what is assembled as an outer wall panel in the field. However, it is particularly suitable for steel frame construction because the construction period can be shortened or stable quality can be obtained by standardization. The outer wall panel itself does not need to be particularly new, and a known one can be applied, and will not be described in detail.

図４において、１４はパネルフレーム、１０は例えば無機繊維断熱材からなる外断熱材、９は外装材である。パネルフレーム１４の内部には一般的な断熱材であるグラスウール１５が装填されると共に桟３４がパネルフレーム１４の中央部に備えられており、その側部には外壁パネルを鉄骨柱等に取り付けするための孔３３が設けられている。外壁パネルはパネルフレーム１４の室外側に外断熱材１０をパネルフレーム１４と桟３４で背面を受けて取り付けし、更にこの外断熱材１０の外側に例えば発泡プラスチック断熱材１８を介在させて外装材９を例えば釘３１で取り付けることにより得ることができる。本例では内壁材を取り付けするための縦桟１６を外壁パネルの一部としてパネルフレーム１４の室内側にパネル化しているが、縦桟１６は外壁パネルを鉄骨柱等に取り付けた後にその室内側のパネルフレーム１４に設けてもよい。   In FIG. 4, 14 is a panel frame, 10 is an outer heat insulating material made of, for example, an inorganic fiber heat insulating material, and 9 is an exterior material. Glass wool 15 which is a general heat insulating material is loaded inside the panel frame 14, and a crosspiece 34 is provided at the center of the panel frame 14, and an outer wall panel is attached to a steel column or the like on the side. A hole 33 is provided. The outer wall panel is provided with an outer heat insulating material 10 attached to the outside of the panel frame 14 by receiving the back surface of the panel frame 14 and a crosspiece 34, and a foamed plastic heat insulating material 18 is interposed outside the outer heat insulating material 10, for example. 9 can be obtained, for example, by attaching with a nail 31. In this example, the vertical beam 16 for attaching the inner wall material is panelized on the indoor side of the panel frame 14 as a part of the outer wall panel. However, the vertical beam 16 is installed on the indoor side after the outer wall panel is attached to a steel column or the like. The panel frame 14 may be provided.

上記外壁パネルにおいて外装材９の横幅は外断熱材１０より広幅になっており、パネル化された発泡プラスチック断熱材１８と外装材９の端部は外断熱材１０から突出しており（図１参照）、この突出部分で鉄骨柱等の室外側を覆うことができるようになっている。   In the outer wall panel, the lateral width of the exterior material 9 is wider than that of the external insulation material 10, and the foamed plastic insulation material 18 and the end of the exterior material 9 project from the external insulation material 10 (see FIG. 1). ), And this projecting portion can cover the outdoor side of a steel column or the like.

本例では、上記外壁パネルを鉄骨柱７に取り付けて外壁を構築する場合、外壁パネルを鉄骨柱７に取り付けするのに先がけて図３に示すように鉄骨柱７の室外側に外側目地用断熱材６を設け、さらに該外側目地用断熱材６の外側に水切り部材８を設け、その後に外壁パネルを外側から鉄骨柱７の間に挿入して取り付けする。外側目地用断熱材６の鉄骨柱７への取り付けは、ガラスペーパーで補強された裏面を例えば両面接着テープ（不図示）で鉄骨柱７の室外側に接着することにより行うことができる。水切り部材８も同様に表皮材２で補強された外側目地用断熱材６の表面に両面接着テープで取り付けできる。この場合、外側目地用断熱材６及び水切り部材８は落下しない程度に留められていればよく、それほど強固に接着されていなくてもよいので数点で部分的に接着することでも足りる。なお、前記水切り部材８は侵入された水分を下方に取り出して内部への侵入を防止できるものであれば、その材質及び形体は限定されない。建築分野で一般的に使用されている例えばゴム製水切り部材が好ましく使用できる。   In this example, when the outer wall panel is attached to the steel column 7 and the outer wall is constructed, the outer joint is insulated outside the steel column 7 outside the steel column 7 before attaching the outer wall panel to the steel column 7 as shown in FIG. A material 6 is provided, and a draining member 8 is provided outside the outer joint heat insulating material 6, and then an outer wall panel is inserted between the steel columns 7 from the outside and attached. The outer joint heat insulating material 6 can be attached to the steel column 7 by adhering the back surface reinforced with glass paper to the outdoor side of the steel column 7 with a double-sided adhesive tape (not shown), for example. Similarly, the draining member 8 can be attached to the surface of the outer joint heat insulating material 6 reinforced by the skin material 2 with a double-sided adhesive tape. In this case, it is sufficient that the outer joint heat insulating material 6 and the draining member 8 are kept to such an extent that they do not fall, and it is not necessary to bond them so firmly. The drainage member 8 is not limited in its material and shape as long as it can take out the intruded moisture downward and prevent entry into the interior. For example, a rubber draining member generally used in the construction field can be preferably used.

なお、両面接着テープは、事前に外側目地用断熱材６の裏面、及び水切り部材８の裏面に貼着してもよいし、施工時に鉄骨柱７の室外側又は外側目地用断熱材６の裏面に適宜貼着し、また外側目地用断熱材６の表面又は水切り部材８の裏面に適宜貼着してもよい。このように両面接着テープは使用方法の幅が広くかつ使用方法も簡単であり、さらにコスト面でも有利であるので、外側目地用断熱材６及び水切り部材８の取り付け手段として優れている。しかし、外側目地用断熱材６及び水切り部材８の取り付け手段は両面接着テープ以外のものでもよく、例えば外面が接着性を持っていれば内面は接着剤で接着してもよい。   The double-sided adhesive tape may be attached in advance to the back surface of the outer joint heat insulating material 6 and the back surface of the draining member 8, or the outdoor side of the steel column 7 or the back surface of the outer joint heat insulating material 6 during construction. It may be appropriately attached to the surface of the outer joint heat insulating material 6 or the back surface of the draining member 8. As described above, the double-sided adhesive tape has a wide range of usage and simple usage, and is advantageous in terms of cost. Therefore, the double-sided adhesive tape is excellent as an attachment means for the outer joint heat insulating material 6 and the draining member 8. However, the attachment means for the outer joint heat insulating material 6 and the draining member 8 may be other than the double-sided adhesive tape. For example, if the outer surface has adhesiveness, the inner surface may be bonded with an adhesive.

上記外壁パネルは、図２に示すように外側目地用断熱材６と水切り部材８が室外側に取り付けられた鉄骨柱７に、パネルフレーム１４が鉄骨柱７を左右両側から挟むようにねじ１９によって固定される。そして、鉄骨柱１の内部に例えば通常のグラスウール１７を室内側の開口部から適宜装填し、さらに鉄骨柱１の室内側に断熱材１３を設けた後、外壁パネルの室内側に内壁材１２が桟１６に釘３２で取り付け施工される。   As shown in FIG. 2, the outer wall panel includes a steel column 7 in which an outer joint heat insulating material 6 and a draining member 8 are attached to the outdoor side, and screws 19 so that the panel frame 14 sandwiches the steel column 7 from both left and right sides. Fixed. Then, for example, ordinary glass wool 17 is appropriately loaded into the interior of the steel column 1 from the opening on the indoor side, and further, the heat insulating material 13 is provided on the indoor side of the steel column 1, and then the inner wall material 12 is provided on the indoor side of the outer wall panel. The nail 32 is attached and installed on the crosspiece 16.

一方、外壁パネルが鉄骨柱７に取り付けされた状態において、鉄骨柱７の室外側には主に外装材９によって外壁パネルの目地部が形成されるとともに、前記したように発泡プラスチック断熱材１８及び外装材９を外断熱材１０から突出させてパネル化しているため、鉄骨柱７と外壁パネルの間には奥行きが丁度外断熱材１０の厚さに相当する隙間部が形成される。鉄骨柱７の室外側に事前に両面接着テープで取り付けされた外側目地用断熱材６と水切り部材８はこの隙間部に収容される。そして、外壁パネルの前記目地部はこの隙間部内に収容された外側目地用断熱材６と水切り部材８の外側に鉄骨柱７に沿って形成され、該目地部は目地シール材１１によってシールされる。   On the other hand, in the state where the outer wall panel is attached to the steel column 7, the joint portion of the outer wall panel is formed mainly by the exterior material 9 on the outdoor side of the steel column 7, and as described above, the foamed plastic heat insulating material 18 and Since the exterior material 9 is projected from the outer heat insulating material 10 to form a panel, a gap portion whose depth corresponds to the thickness of the outer heat insulating material 10 is formed between the steel column 7 and the outer wall panel. The outer joint heat insulating material 6 and the draining member 8 attached in advance to the outdoor side of the steel column 7 with a double-sided adhesive tape are accommodated in this gap portion. The joint portion of the outer wall panel is formed along the steel column 7 on the outside of the outer joint heat insulating material 6 and the draining member 8 accommodated in the gap portion, and the joint portion is sealed by the joint seal material 11. .

本例のように鉄骨柱７の室外側に外側目地用断熱材６と水切り部材８が設けられていると、鉄骨柱７の室外側を外側目地用断熱材６によって断熱することができるので、断熱性の優れる外壁構造体を得ることができる。具体的には建物の外壁体において鉄骨柱の室外側に外側目地用断熱材６が設けられていない場合には、この部分の断熱性が他の部位と比べて劣るが、外側目地用断熱材で断熱することによりその他の部分とほぼ同等に断熱できる。また、前記水切り部材によって目地部からの水分や湿気の侵入を防止し、外壁内部に湿気が浸透するのを防ぐことができるので、防水性の優れた外壁構造体を得ることができる。さらに、この水切り部材８は目地シール材１１の目地受け部材としても機能するため、目地シールが行いやすくなると共に良好な目地シール部が得られる。したがって、鉄骨柱７の室外側には本例のように外側目地用断熱材６と水切り部材８を併設することが好ましいが、水切り部材８を設けないときは外側目地用断熱材６が水切り部材８に代わって目地受け部材の役割を果たす。   When the outer joint heat insulating material 6 and the draining member 8 are provided on the outdoor side of the steel column 7 as in this example, the outer side of the steel column 7 can be insulated by the outer joint heat insulating material 6. An outer wall structure having excellent heat insulation can be obtained. Specifically, in the case where the outer joint heat insulating material 6 is not provided outside the steel column in the outer wall of the building, the heat insulating property of this portion is inferior to that of other parts, but the outer joint heat insulating material By heat insulation with, it can be insulated almost the same as other parts. Moreover, since the water drainage member prevents moisture and moisture from entering from the joint portion and prevents moisture from penetrating into the inside of the outer wall, an outer wall structure having excellent waterproof properties can be obtained. Further, since the draining member 8 also functions as a joint receiving member for the joint sealing material 11, joint sealing becomes easy and a good joint sealing portion is obtained. Therefore, it is preferable that the outer joint heat insulating material 6 and the draining member 8 are provided on the outdoor side of the steel column 7 as in this example, but when the draining member 8 is not provided, the outer joint heat insulating material 6 is used as the draining member. Instead of 8, it serves as a joint receiving member.

本例では上記したように外壁パネルを用いて外壁を施工する場合について説明したが、外壁の施工方法はこれに限定されない。例えば外壁を予めパネル化せずに外壁の一部又は全部を現場で施工してもよい。   Although this example demonstrated the case where an outer wall was constructed using an outer wall panel as mentioned above, the construction method of an outer wall is not limited to this. For example, a part or all of the outer wall may be constructed on site without previously forming the outer wall into a panel.

本発明の外側目地用断熱材は鉄骨柱の室外側の断熱材として好適するが、鉄骨柱以外の例えば梁などの鉄骨構造体の室外側の断熱に対しても同様に適用できる。   The outer joint heat insulating material of the present invention is suitable as a heat insulating material on the outdoor side of the steel column, but can be similarly applied to heat insulating on the outdoor side of a steel structure such as a beam other than the steel column.

本発明の鉄骨柱等の外側目地用断熱材は、鉄骨建物の外壁における鉄骨柱等の室外側の断熱材として適用できる。   The heat insulating material for outside joints such as a steel column of the present invention can be applied as an outdoor heat insulating material such as a steel column on the outer wall of a steel building.

本発明に好ましい実施形態である外側目地用断熱材の斜視図。The perspective view of the heat insulating material for outer joints which is preferable embodiment for this invention. 本発明に係る外側目地用断熱材を用いて施工される外壁断熱構造の１例を示す断面説明図。Cross-sectional explanatory drawing which shows one example of the outer wall heat insulation structure constructed | assembled using the heat insulating material for outer joints which concerns on this invention. 図２の外壁断熱構造における外側目地用断熱材の施工方法を示す説明図。Explanatory drawing which shows the construction method of the heat insulating material for outside joints in the outer wall heat insulation structure of FIG. 外壁パネルを示す分解斜視図。The disassembled perspective view which shows an outer wall panel. 従来の外壁の鉄骨柱部分における断熱構造の断面説明図。Cross-sectional explanatory drawing of the heat insulation structure in the steel column part of the conventional outer wall.

符号の説明Explanation of symbols

１：無機繊維断熱材、 ２：表皮材、 ３：ガラスペーパー、
４：格子網状体、 ５：アルミ層、 ６：外側目地用断熱材、
７：鉄骨柱、 ８：水切り部材、 ９：外装材、
１０：外断熱材、 １１：目地シール材、 １２：内壁材、
１３：断熱材、 １４：パネルフレーム、 １５、１７：断熱材、
１６：縦桟、 １８：プラスチック発泡体、 １９：ねじ、 1: inorganic fiber heat insulating material, 2: skin material, 3: glass paper,
4: Grid network, 5: Aluminum layer, 6: Thermal insulation for outer joint,
7: Steel column, 8: Draining member, 9: Exterior material,
10: outer heat insulating material, 11: joint sealing material, 12: inner wall material,
13: heat insulating material, 14: panel frame, 15, 17: heat insulating material,
16: Vertical rail, 18: Plastic foam, 19: Screw,

Claims (5)

密度が９８ｋｇ／ｍ３以上の無機繊維断熱材の片側面が、格子網状体の上面にアルミ層を層成してなる表皮材で補強され、もう一方の片側面がガラスペーパーで補強されていることを特徴とする鉄骨柱等の外側目地用断熱材。 One side surface of the inorganic fiber heat insulating material having a density of 98 kg / m 3 or more is reinforced with a skin material in which an aluminum layer is formed on the upper surface of the lattice network, and the other side surface is reinforced with glass paper. A heat insulating material for outer joints such as steel columns. 前記表皮材がポリオレフィン系樹脂からなる割繊維不織布にアルミ箔を圧着してなる請求項１に記載の鉄骨柱等の外側目地用断熱材。   The heat insulating material for outer joints such as steel columns according to claim 1, wherein the skin material is formed by crimping an aluminum foil to a split fiber nonwoven fabric made of a polyolefin resin. 前記無機繊維断熱材がグラスウールからなる断熱材である請求項１又は２に記載の鉄骨柱等の外側目地用断熱材。   The heat insulating material for outer joints such as steel columns according to claim 1 or 2, wherein the inorganic fiber heat insulating material is a heat insulating material made of glass wool. 請求項１〜３のいずれかに記載の外側目地用断熱材が鉄骨柱等の室外側に接着テープで装着されており、該外側目地用断熱材の室外側に水切り部材が装着されており、該水切り部材の室外側に外壁体が施工されていることを特徴とする鉄骨柱等の室外側断熱構造。   The heat insulating material for outer joints according to any one of claims 1 to 3 is attached to the outdoor side of a steel column or the like with an adhesive tape, and a draining member is attached to the outdoor side of the heat insulating material for outer joints, An outdoor heat insulating structure for a steel column or the like, wherein an outer wall is constructed on the outdoor side of the draining member. 外壁体がパネル化されている請求項４に記載の鉄骨柱等の室外側断熱構造。   The outdoor heat insulating structure such as a steel column according to claim 4, wherein the outer wall body is formed into a panel.
JP2006118068A 2006-04-21 2006-04-21 Insulation for outer joints such as steel columns and heat insulation structure using the same Active JP4309899B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT511073A4 (en) * 2011-06-29 2012-09-15 Wopfinger Baustoffindustrie Gmbh Facade construction for thermal insulation and cladding of external building walls and method for producing such a facade construction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT511073A4 (en) * 2011-06-29 2012-09-15 Wopfinger Baustoffindustrie Gmbh Facade construction for thermal insulation and cladding of external building walls and method for producing such a facade construction
AT511073B1 (en) * 2011-06-29 2012-09-15 Wopfinger Baustoffindustrie Gmbh Facade construction for thermal insulation and cladding of external building walls and method for producing such a facade construction

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