JP2017036555A - Outer peripheral wall construction method of wooden building - Google Patents

Outer peripheral wall construction method of wooden building Download PDF

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JP2017036555A
JP2017036555A JP2015156983A JP2015156983A JP2017036555A JP 2017036555 A JP2017036555 A JP 2017036555A JP 2015156983 A JP2015156983 A JP 2015156983A JP 2015156983 A JP2015156983 A JP 2015156983A JP 2017036555 A JP2017036555 A JP 2017036555A
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peripheral wall
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JP5913702B1 (en
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孝祐 岡野
Kosuke Okano
孝祐 岡野
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Okanojutaku Kk
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Abstract

PROBLEM TO BE SOLVED: To provide an outer peripheral wall construction method of a wooden building capable of securing a thickness of a required heat insulation material, without adding additional heat insulation.SOLUTION: An outer peripheral wall construction method of a wooden building constructed by a wooden framework method, adopts a construction method of offsetting by moving a wall core to the outside by about a predetermined dimension on an outer wall surface of increasing a thickness by setting a thickness dimension of a stud to 8 inches or more, by filling a heat insulation material in a hollow part formed of an inner wall material and an outer wall material, by installing the outer wall material on an outside surface of a corner column, a structural column and the stud, by installing the inner wall material on an inside surface of the structural column and the stud, by applying L-shaped processing of cutting a column head of the stud by a width and a thickness dimension of a girder material, by using a two-by-four material produced in a standard of 8 inches or more in the thickness dimension as the stud arranged between the corner column and the structural column of the outer peripheral wall.SELECTED DRAWING: Figure 1

Description

本発明は、木造建築物の外周壁構造に関し、詳しくは、付加断熱を追加することなく必要な断熱材の厚さを確保可能な木造軸組工法で建造される木造建築物の外周壁構造に関するものである。   TECHNICAL FIELD The present invention relates to an outer peripheral wall structure of a wooden building, and more particularly, to an outer peripheral wall structure of a wooden building constructed by a wooden frame construction method capable of securing a necessary heat insulating material thickness without adding additional heat insulation. Is.

木造建築物の工法としては、主として木造軸組工法と木造枠組壁工法とがあり、現在における殆どの木造建築物は、これら二つの工法の何れかにより建造されている。   As construction methods of wooden buildings, there are mainly a wooden frame construction method and a wooden frame wall construction method, and most wooden buildings at present are constructed by one of these two construction methods.

木造軸組工法は、在来工法とも呼ばれ、主に柱や梁といった軸組(線材)によって建築物を支える構造である。使用される木材の種別と大きさ寸法については、通常、土台が105mm×105mm、大引きが90mm×90mm、柱が105mm×105mm、間柱が30mm×105mm、梁が105mm×(105mm,120mm,150mm,180mm,210mm,240mm,270mm,300mm,330mm,360mm)、筋交いが105mm×45mm、母屋が105mm×105mmの米松、垂木が45mm×45mmなどが主流であり、木材の原料については檜や杉,米松など実に多種多様である。構造上、柱と梁に応力が集中するため、地震荷重や風荷重などの水平荷重(横からの力)に耐えられるように、筋交いや構造用合板などを用いて一定量以上の耐力壁・耐力床を作ることが義務付けられている。   The wooden frame construction method is also called a conventional construction method, and is a structure that supports a building mainly by a frame (wire) such as columns and beams. As for the type and size of the wood used, the base is usually 105 mm x 105 mm, the large pull is 90 mm x 90 mm, the pillar is 105 mm x 105 mm, the intermediary pillar is 30 mm x 105 mm, and the beam is 105 mm x (105 mm, 120 mm, 150 mm , 180 mm, 210 mm, 240 mm, 270 mm, 300 mm, 330 mm, 360 mm), bracing is 105 mm x 45 mm, the main house is 105 mm x 105 mm rice pine, rafters are 45 mm x 45 mm, etc. There are a great variety, such as Yonematsu. Since stress concentrates on the columns and beams due to the structure, a certain amount of load-bearing walls, such as bracing and structural plywood, can be used to withstand horizontal loads such as seismic loads and wind loads. It is obliged to make a load-bearing floor.

かかる木造軸組工法は、設計自由度が高いため、建築途中での間取り変更や建築後の増改築に柔軟に対応でき、また、化粧柱や化粧梁といった軸組を化粧で仕上げることで意匠性の向上に資し、さらには、技術者の確保も容易である、といった利点がある。   Since this wooden frame construction method has a high degree of freedom in design, it can flexibly respond to changes in the layout during construction and expansion / reconstruction after construction. There is an advantage that it is easy to secure engineers.

しかしながら、木造軸組工法では、耐震性を得るために筋交いが用いられているが、壁材(面材)により耐震性を得る木造枠組壁工法に比べ、耐震力に劣るといった問題があった。また、断熱性を得るべく壁内に断熱材を充填する場合に、柱及び間柱の太さは上記したとおり通常105mmであり、当該太さの範囲内でしか断熱材の厚さを確保することができないものであって、断熱力は断熱材の厚さに比例することから、断熱力が弱く不充分となる場合があった。柱や間柱について更に太いものを採用するにしても、コスト面を考慮すると最大で120mm(4寸角)の太さが限界であって、それ以上の断熱力を得ようとした場合には、壁の外側もしくは室内側に付加断熱を追加する必要があり、その際に付加断熱用の断熱材を支持するための下地工事も必須となって、作業手間を煩雑にすると共に建築コストの高騰を招き、さらには、異種断熱材の組み合わせ(ダブル断熱)による透湿抵抗の違いから壁体内結露のおそれがあり得る、といった問題もあった。   However, in the wooden frame construction method, bracing is used to obtain earthquake resistance, but there is a problem that the earthquake resistance is inferior compared to a wooden frame wall construction method that obtains earthquake resistance by a wall material (face material). In addition, when the wall is filled with a heat insulating material to obtain heat insulating properties, the thickness of the pillar and the inter-column is normally 105 mm as described above, and the thickness of the heat insulating material should be ensured only within the thickness range. Since the heat insulation power is proportional to the thickness of the heat insulating material, the heat insulation power is weak and may be insufficient. Even if a thicker one is used for the pillars and the studs, if the cost is taken into consideration, the maximum thickness is 120 mm (4 inch square), and if you want to obtain more heat insulation, It is necessary to add additional heat insulation to the outside of the wall or the indoor side, and in that case, it is also essential to underlay the work to support the heat insulating material for additional heat insulation, which complicates the work and increases the construction cost. In addition, there was a problem that condensation in the wall may be caused by a difference in moisture permeability resistance due to a combination of different kinds of heat insulating materials (double heat insulation).

一方、木造枠組壁工法は、一般に2×4工法(ツーバイフォー工法)とも呼ばれ、フレーム状に組まれた木材に構造用合板を打ち付けた壁や床(面材)で建築物を支える構造である。かかるツーバイフォー工法は、2インチ×4インチの大きさの木材を基準として、ツーバイフォー(2インチ×4インチ),ツーバイシックス(2インチ×6インチ),ツーバイエイト(2インチ×6インチ),ツーバイテン(2インチ×10インチ),ツーバートゥエルブ(2インチ×12インチ),フォーバイフォー(4インチ×4インチ)の6種類の規格から成る木材によって家の骨組みを構成し、そこに耐力壁と剛床を強固に一体化した箱型構造である。   On the other hand, the wooden frame wall construction method is also called a 2 × 4 construction method (two-by-four construction method), and is a structure that supports a building with walls and floors (face materials) in which structural plywood is struck on the framed wood. . The two-by-four method is based on 2 inch × 4 inch timber, two-by-four (2 inch × 4 inch), two-by six (2 inch × 6 inch), two-by eight (2 inch × 6 inch), two-by ten ( The frame of the house is made up of wood consisting of six types of standards: 2 inches x 10 inches, 2 bar twelve (2 inches x 12 inches), and four-by-four (4 inches x 4 inches), and the bearing walls and rigid floors are solidified there. It is a box-type structure integrated into

かかる木造枠組壁工法は、木材が規格化されているため、工場での大量生産により手間やコストを抑えられると共に、その殆どが直線カットのみで継手・仕口などの複雑な加工が不要であるため、高度な技術を必要とせず人件費および工期を抑えられるといった利点がある。また、耐力壁および剛床で建築物を強固に一体化しているため、耐震性・耐風圧性に非常に優れ、さらには、壁や床といった面要素を基本としていることから、隙間が大変少なく、断熱性・気密性・防音性にも優れている。   Such wooden frame wall construction methods have standardized timber, so it is possible to reduce labor and cost by mass production at the factory, and most of them are only straight cuts, and complicated processing such as joints and joints is unnecessary. Therefore, there is an advantage that labor cost and construction period can be suppressed without requiring advanced technology. In addition, because the building is firmly integrated with a load-bearing wall and a rigid floor, it is extremely excellent in earthquake resistance and wind pressure resistance, and since it is based on surface elements such as walls and floors, there are very few gaps, Excellent heat insulation, air tightness and soundproofing.

しかしながら、木造枠組壁工法は、耐力壁が構造上重要な位置を占めるために設計自由度が低く、間取りや部屋の大きさ、窓の位置などにおいて制限を受けるもので、窓や扉等の開口部を拡大したり増設したりするような大規模なリフォームは不可能に近い、といった問題があった。   However, the wooden framed wall construction method has a low degree of freedom in design because the bearing wall occupies an important position in the structure, and is limited in layout, room size, window position, etc. There was a problem that large-scale remodeling that expanded or expanded the department was almost impossible.

このように、各工法に夫々利点と問題点とが混在する中で、建築工法に関する従来の提案としては、例えば、柱と柱の間に建てられる間柱に、軸組材に代えて(37mm〜39mm)×(88mm〜90mm)のツーバイフォー材を用いた「木造建築物」(特許文献1)が提案されている。   In this way, in each method, advantages and problems are mixed, and as a conventional proposal related to a construction method, for example, instead of a shaft assembly (37 mm ~ A “wooden building” (Patent Document 1) using a two-by-four material of (39 mm) × (88 mm to 90 mm) has been proposed.

しかしながら、上記「木造建築物」の提案は、単に間柱としてツーバイフォー材を用いた提案であって、そのツーバイフォー材の太さ以上に断熱材の厚さを確保することができる提案ではなく、更なる断熱力を得ようとすると、結局のところ壁の内外に付加断熱を追加する必要があった。   However, the proposal for the above-mentioned “wooden building” is simply a proposal using two-by-four material as a stud, and is not a proposal that can ensure the thickness of the heat insulating material beyond the thickness of the two-by-four material. In order to obtain heat insulation power, it was necessary to add additional heat insulation inside and outside the wall after all.

また、ツーバイフォー工法に使用されるような工場生産された壁面パネルを、木造軸組工法によって柱の間にできた壁面スペースに嵌め込み固定する「木造建物」(特許文献2)が提案されている。   Further, a “wooden building” (Patent Document 2) is proposed in which a wall panel produced in a factory such as used in the two-by-four method is fitted and fixed in a wall surface space formed between pillars by a wooden frame construction method.

しかしながら、上記「木造建物」の提案は、木造軸組工法における壁面パネルの固定を簡易にするための提案であって、上記同様、通常の柱や間柱の太さ以上に断熱材の厚さを確保することができる提案ではなく、更なる断熱力を得ようとすると、結局のところ壁の内外に付加断熱を追加する必要があった。   However, the proposal of the above “wooden building” is a proposal for simplifying the fixing of the wall panel in the wooden frame construction method, and as above, the thickness of the heat insulating material is more than the thickness of the normal columns and the studs. It was not a proposal that could be ensured, but in order to obtain further insulation, it was necessary to add additional insulation inside and outside the wall after all.

本出願人は、木造軸組工法の設計自由度と、木造枠組壁工法の規格化木材による生産性に着目し、付加断熱を追加することなく高い断熱力を得ることができないものかという着想の下、木造軸組工法で建造される木造建築物における外周壁の間柱として規格化された所定寸法の木材を採用することで、付加断熱を追加することなく必要な断熱材の厚さを確保できる外周壁の構造を開発し、本発明にかかる「木造建築物の外周壁構造」の提案に至るものである。   The present applicant pays attention to the design freedom of the wooden frame construction method and the productivity by standardized wood of the wooden frame wall construction method, and the idea of whether high thermal insulation power can be obtained without adding additional insulation. Below, it is possible to secure the necessary insulation thickness without adding additional heat insulation by adopting wood with a predetermined size as a pillar of the outer peripheral wall in a wooden building constructed by the wooden frame construction method. The structure of the outer peripheral wall is developed and the proposal of the “outer wall structure of a wooden building” according to the present invention is reached.

特開2010−121432号公報JP 2010-112432 A 特開2000−96709号公報JP 2000-96709 A

本発明は、上記問題点に鑑みて為されたもので、付加断熱を追加することなく必要な断熱材の厚さを確保できる木造建築物の外周壁構造を提供することを課題とする。   This invention is made | formed in view of the said problem, and makes it a subject to provide the outer peripheral wall structure of the wooden building which can ensure the thickness of a required heat insulating material, without adding additional heat insulation.

上記課題を解決するため、本発明は、木造軸組工法で建造される木造建築物の外周壁構造であって、外周壁の隅柱や構造柱の間に配される間柱として、太さ寸法が8インチ以上の規格生産されたツーバイ材を使用し、構造柱や間柱の内側面に内壁材が装着されると共に、隅柱や構造柱と間柱の外側面に外壁材が装着され、該内壁材と外壁材とで形成される中空部内に断熱材が充填された構造となっている。   In order to solve the above-mentioned problems, the present invention is an outer peripheral wall structure of a wooden building constructed by a wooden frame construction method, and has a thickness dimension as a pillar arranged between corner pillars and structural pillars of the outer peripheral wall. Is a standard-produced two-by-two material that has an inner wall material attached to the inner surface of the structural column and the intermediate column, and an outer wall material attached to the outer surface of the corner column, the structural column, and the intermediate column. It has a structure in which a heat insulating material is filled in a hollow portion formed by a material and an outer wall material.

また、本発明は、前記間柱の太さ寸法を8インチ以上としたことで厚みを増した前記外周壁について室内寸法を変えずに内側合わせとし、それにより該外周壁の壁芯を所定寸法分ほど外側へ移動しオフセットされて成る構造を採用し得る。   Further, according to the present invention, the outer peripheral wall whose thickness is increased by setting the thickness of the studs to 8 inches or more is aligned inside without changing the indoor dimensions, and thereby the wall core of the outer peripheral wall is set to a predetermined dimension. It is possible to adopt a structure that is moved outward and offset.

さらに、本発明は、前記間柱が、ツーバイ材をプレーナー処理して太さ寸法を所定厚さ分ほど細小化した構造を採用し得る。   Furthermore, the present invention can employ a structure in which the studs are planarized from a two-by material to reduce the thickness dimension by a predetermined thickness.

またさらに、本発明は、前記隅柱が、3寸5分角(105mm×105mm)もしくは4寸角(120mm×120mm)から成る構造を採用し得る。   Furthermore, the present invention may employ a structure in which the corner pillar is composed of 3 × 5 arcmin (105 mm × 105 mm) or 4 × 2 (120 mm × 120 mm).

本発明に係る木造建築物の外周壁構造によれば、木造軸組工法における設計自由度をそのままに、断熱材の厚さを必要なだけ確保することが可能であって、付加断熱を追加することなく高い断熱力を得ることが可能になる、といった優れた効果を奏する。   According to the outer peripheral wall structure of the wooden building according to the present invention, it is possible to ensure the necessary thickness of the heat insulating material while maintaining the design freedom in the wooden frame construction method, and add additional heat insulation. There is an excellent effect that a high heat insulation power can be obtained without any problems.

また、本発明に係る木造建築物の外周壁構造によれば、外周壁の間柱として太さ寸法が8インチ以上のツーバイ材を使用することで、該ツーバイ材が工場等で大量生産される規格材であることから、作業手間を簡略化できると共に、建築コストの削減にも資する、といった優れた効果を奏する。   Moreover, according to the outer peripheral wall structure of the wooden building according to the present invention, a standard that the two-by material is mass-produced in a factory or the like by using a two-by material having a thickness of 8 inches or more as a pillar of the outer peripheral wall. Since it is a material, the work can be simplified, and the excellent effect of contributing to the reduction of the construction cost can be achieved.

さらに、本発明に係る木造建築物の外周壁構造によれば、間柱として太さ寸法8インチ以上のツーバイ材が使用されることで、内壁材と外壁材とで形成される中空部について8インチ以上の間隔が確保されているのに対し、隅柱が3寸5分角(105mm×105mm)もしくは4寸角(120mm×120mm)から成り、桁材(銅差材)は3寸5分(105mm)幅で構成されていることから、かかる隅柱や桁材(銅差材)と内壁材との間にも断熱材を充填可能であって、それにより隅柱及び桁材(銅差材)自体のヒートブリッジを防止することが可能である、といった優れた効果を奏する。   Furthermore, according to the outer peripheral wall structure of the wooden building according to the present invention, the hollow part formed by the inner wall material and the outer wall material is 8 inches by using a two-by material having a thickness dimension of 8 inches or more as a spacer. While the above-mentioned interval is secured, the corner pillar is composed of 3 × 5 arc (105 mm × 105 mm) or 4 × 2 (120 mm × 120 mm), and the girders (copper material) is 3 × 5 min ( 105 mm), it is possible to fill the space between the corner pillars and girders (copper difference material) and the inner wall material, and thereby the corner pillars and girders (copper difference material). ) It has an excellent effect that it can prevent its own heat bridge.

またさらに、本発明に係る木造建築物の外周壁構造によれば、外壁材の外側から貫通する構造金物(例えば羽子板ボルト)について、内壁材と外壁材とで形成される中空部内において断熱材で包むことができるため、該金物によるヒートブリッジも防止することが可能である、といった優れた効果を奏する。   Still further, according to the outer peripheral wall structure of the wooden building according to the present invention, the structural hardware (for example, the battledore bolt) penetrating from the outside of the outer wall material is a heat insulating material in the hollow portion formed by the inner wall material and the outer wall material. Since it can be wrapped, there is an excellent effect that it is possible to prevent a heat bridge caused by the hardware.

本発明に係る木造建築物の外周壁構造の実施形態を示す全体平面図である。It is a whole top view showing an embodiment of an outer peripheral wall structure of a wooden building concerning the present invention. 本発明に係る木造建築物の外周壁構造の実施形態を示す要部拡大図である。It is a principal part enlarged view which shows embodiment of the outer peripheral wall structure of the wooden building which concerns on this invention. 本発明に係る木造建築物の外周壁構造の実施形態を示す要部拡大図である。It is a principal part enlarged view which shows embodiment of the outer peripheral wall structure of the wooden building which concerns on this invention. 本発明に係る木造建築物の外周壁構造の実施形態を示す要部拡大図である。It is a principal part enlarged view which shows embodiment of the outer peripheral wall structure of the wooden building which concerns on this invention. 本発明に係る木造建築物の外周壁構造の実施形態を示す要部拡大図である。It is a principal part enlarged view which shows embodiment of the outer peripheral wall structure of the wooden building which concerns on this invention.

本発明は、木造軸組工法で建造される木造建築物1の外周壁構造であって、外周壁10の隅柱20や構造柱22の間に配される間柱24として、太さ寸法が8インチ以上の規格生産されたツーバイ材を使用し、構造柱22や間柱24の内側面に内壁材12が装着されると共に、隅柱20や構造柱22と間柱24の外側面に外壁材14が装着され、該内壁材12と外壁材14とで形成される中空部内に断熱材30が充填されて成ることを最大の特徴とする。
以下、本発明に係る木造建築物1の外周壁構造の実施形態を、図面に基づいて説明する。
The present invention is an outer peripheral wall structure of a wooden building 1 constructed by a wooden frame construction method, and has a thickness dimension of 8 as a pillar 24 arranged between a corner column 20 and a structural column 22 of the outer peripheral wall 10. The inner wall material 12 is mounted on the inner side surface of the structural column 22 and the intermediate column 24 and the outer wall material 14 is disposed on the outer side surface of the corner column 20 and the structural column 22 and the intermediate column 24 using a two-by-material produced in a standard of inch or more. The most characteristic feature is that a heat insulating material 30 is filled in a hollow portion that is mounted and formed by the inner wall material 12 and the outer wall material 14.
Hereinafter, an embodiment of an outer peripheral wall structure of a wooden building 1 according to the present invention will be described based on the drawings.

尚、本発明に係る木造建築物1の外周壁構造は、以下に述べる実施例に限定されるものではなく、本発明の技術的思想の範囲内、すなわち同一の作用効果を発揮できる形状や寸法等の範囲内で、適宜変更することができる。   In addition, the outer peripheral wall structure of the wooden building 1 according to the present invention is not limited to the embodiments described below, but within the scope of the technical idea of the present invention, that is, the shape and dimensions that can exhibit the same operational effects. Within the range of the above, it can be appropriately changed.

図1及び図2は、本発明に係る木造建築物1の外周壁構造の実施形態を示す平面図であり、図1は全体平面図、図2は要部拡大図である。
本発明に係る木造建築物1の外周壁構造は、木造軸組工法で建造される木造建築物1における外周壁10の構造であって、外周壁10の隅柱20や構造柱22の間に配される間柱24として、太さ寸法が8インチ以上の規格生産されたツーバイ材が使用される。
FIG.1 and FIG.2 is a top view which shows embodiment of the outer peripheral wall structure of the wooden building 1 which concerns on this invention, FIG. 1 is a whole top view, FIG. 2 is a principal part enlarged view.
The outer peripheral wall structure of the wooden building 1 according to the present invention is the structure of the outer peripheral wall 10 in the wooden building 1 constructed by the wooden frame construction method, and between the corner pillars 20 and the structural pillars 22 of the outer peripheral wall 10. As the spacer 24 to be disposed, a standard-produced two-by-material having a thickness of 8 inches or more is used.

ツーバイ材は、木造枠組壁工法において使用される所定寸法に規格化された木材であり、その中でも本発明では、太さ寸法が8インチ以上のもの、すなわちツーバイエイト(2インチ×6インチ)やツーバイテン(2インチ×10インチ)、あるいはツーバートゥエルブ(2インチ×12インチ)から成る規格寸法のツーバイ材を間柱24として使用するものである。   The two-by material is wood standardized to a predetermined size used in a wooden frame wall construction method. Among them, in the present invention, the thickness is 8 inches or more, that is, two-by-eight (2 inches × 6 inches), A standard size two-by-material made of two-by ten (2 inches × 10 inches) or two bar twelve (2 inches × 12 inches) is used as the stud 24.

実際にツーバイ材を間柱24として使用するに際し、規格寸法のまま使用する態様も可能であるが、該ツーバイ材をプレーナー処理して太さ寸法を所定厚さ分(概ね1〜10mm)ほど細小化したものを間柱24に使用することが好ましい。すなわち、ツーバイ材としてツーバイエイト(2インチ×8インチ)のものを例にとると、その太さ寸法8インチをミリ換算すると184mmとなるが、これをプレーナー処理して太さ寸法を約180mmとすることで、処理面の水分浸透が抑止されて木材の腐食防止に資し長寿命化が図れると共に、木造軸組工法で一般に使用されている180mm×105mmの木材を構造柱22として使用することが可能となり、作業手間の簡略化とコストダウンに資することとなる。   In practice, when using the two-by material as the spacer 24, it is possible to use the standard size as it is. However, the two-by material is planarized to reduce the thickness dimension by a predetermined thickness (approximately 1 to 10 mm). It is preferable to use what is made for the spacer 24. That is, taking a two-by-eight material (2 inches × 8 inches) as an example, a thickness of 8 inches is 184 mm when converted to millimeters, but this is planarized to a thickness of about 180 mm. As a result, moisture permeation of the treated surface is suppressed, which contributes to prevention of corrosion of the wood and prolongs the life, and 180 mm × 105 mm wood generally used in the wooden frame construction method is used as the structural pillar 22. This contributes to simplification of work and cost reduction.

かかるツーバイ材から成る間柱24は、隅柱20や構造柱22の間、具体的には、隅柱20と隅柱20の間や隅柱20と構造柱22の間、構造柱22と構造柱22の間に配置される。   The inter-column 24 made of the two-by material is provided between the corner column 20 and the structural column 22, specifically, between the corner column 20 and the corner column 20, between the corner column 20 and the structural column 22, or between the structural column 22 and the structural column. 22 is arranged.

本発明における隅柱20や構造柱22の寸法については特に限定はなく、定法で使用される既存の寸法から成る柱材を使用すれば足りる。ただし、間柱24の太さ寸法(8インチ,10インチ,12インチ)と同じあるいは細小寸法であることを要する。すなわち、本発明が間柱24として太さ寸法8インチ以上の規格生産されたツーバイ材を用いたとしても、隅柱20や構造柱22の寸法を該間柱24の太さ寸法と必ずしも同寸法に合わせる必要はない。   There are no particular limitations on the dimensions of the corner pillars 20 and the structural pillars 22 in the present invention, and it is sufficient to use pillar materials having existing dimensions that are used in a regular manner. However, it is necessary to be the same as the thickness dimension (8 inches, 10 inches, and 12 inches) of the spacer 24 or a small dimension. That is, even if the present invention uses a standard-produced two-by-material having a thickness of 8 inches or more as the spacer 24, the dimensions of the corner column 20 and the structural column 22 are not necessarily matched with the thickness of the spacer 24. There is no need.

このとき、前記隅柱20の寸法について、3寸5分角(105mm×105mm)もしくは4寸角(120mm×120mm)とする態様が考え得る。すなわち、隅柱20は、平面視において略正方形を為す柱材であるが、この一辺寸法を5寸以上(5寸角以上)とすると、材料コスト的に高騰化を招くこととなるため、不経済である。したがって、定法に用いられる隅柱20の寸法、すなわち3寸5分角もしくは4寸角とする態様が望ましい。   At this time, about the dimension of the said corner pillar 20, the aspect made into 3 dimensions 5 arcmin (105 mm x 105 mm) or 4 dimensions square (120 mm x 120 mm) can be considered. That is, the corner pillar 20 is a pillar material having a substantially square shape in a plan view. However, if this one side dimension is 5 dimensions or more (5 dimensions square or more), the material cost will increase, which is inconvenient. It is an economy. Therefore, the aspect of the corner column 20 used in the regular method, that is, a 3/5 arc or 4 arc is desirable.

また、前記構造柱22ついて、梁材を利用する態様が考え得る。すなわち、梁材として105mm×180mmといった丁度いい寸法の材料が存在する。かかる通常は横使いの梁材に柱ホゾを付け、それを構造柱22として利用することで、材料コストを抑えつつ断熱材30の厚さを稼ぐ構造が可能となる。   Further, a mode using a beam material for the structural column 22 can be considered. In other words, there is a material having an exactly good size such as 105 mm × 180 mm as a beam material. By attaching a pillar to such a normally used beam and using it as the structural pillar 22, a structure that increases the thickness of the heat insulating material 30 while suppressing the material cost can be realized.

間柱24の内側面には、内壁材12が装着される。このとき、構造柱22の太さ寸法を間柱24と同寸法とした場合には、間柱24の内側面と併せて該構造柱22の内側面にも内壁材12が装着される。なお、内壁材12の材質・種類については特に限定するものではなく、例えばプラスターボードなど適宜決定し得る。かかる内壁材12の具体的構造については、図2に示すように、木造建築物1の気密性に鑑みて2層構造とし、層間にポリエチレンフィルムなどから成る気密性シート18が敷設される構造を採り得る。   The inner wall material 12 is attached to the inner side surface of the stud 24. At this time, when the thickness dimension of the structural column 22 is the same as that of the intermediate column 24, the inner wall material 12 is mounted on the inner side surface of the structural column 22 together with the inner side surface of the intermediate column 24. Note that the material and type of the inner wall material 12 are not particularly limited, and may be determined as appropriate, for example, a plaster board. As for the specific structure of the inner wall material 12, as shown in FIG. 2, in view of the airtightness of the wooden building 1, a two-layer structure is used, and a structure in which an airtight sheet 18 made of a polyethylene film or the like is laid between the layers. It can be taken.

隅柱20や構造柱22と間柱24の外側面には、外壁材14が装着される。すなわち、隅柱20と構造柱22と間柱24は、その外側面が外周壁10の外壁材14に接するよう、適当な位置に配されている。なお、外壁材14の材質・種類については、内壁材12同様、特に限定するものではなく、適宜決定し得る。かかる外壁材14の具体的構造については、図2に示すように、例えばMDFやインシュレーションボードからなる構造用合板46の外周に通気層15を介して外壁ボード16が配設される構造を採り得る。   The outer wall material 14 is attached to the outer surfaces of the corner pillars 20, the structural pillars 22, and the intermediate pillars 24. That is, the corner pillars 20, the structural pillars 22, and the interposition pillars 24 are arranged at appropriate positions so that the outer surfaces thereof are in contact with the outer wall material 14 of the outer peripheral wall 10. In addition, about the material and kind of the outer wall material 14, like the inner wall material 12, it does not specifically limit and can determine suitably. As for the specific structure of the outer wall member 14, as shown in FIG. 2, a structure in which the outer wall board 16 is disposed on the outer periphery of a structural plywood 46 made of, for example, MDF or an insulation board via a ventilation layer 15 is adopted. obtain.

前記内壁材12と外壁材14とで形成される中空部内には、適宜断熱材30が充填されることとなる。断熱材30の材質・種類については特に限定するものではなく、グラスウールやロックウール等の繊維系断熱材や、ウレタンフォームやスタイロフォーム等の発泡系断熱材など、用途やコストに合わせて適宜決定し得る。   A heat insulating material 30 is appropriately filled in the hollow portion formed by the inner wall material 12 and the outer wall material 14. The material and type of the heat insulating material 30 are not particularly limited, and can be appropriately determined according to the use and cost, such as fiber heat insulating materials such as glass wool and rock wool, and foam heat insulating materials such as urethane foam and styrofoam. .

中空部内への断熱材30の充填態様については、一種の断熱材30を充填する態様のほか、複数種の断熱材30を重ね合わせて充填する態様も可能である。
この点、従来のダブル断熱とした場合において、外周壁10内に繊維系断熱材を充填し、耐力壁外側に下地を作って発泡系断熱材を取り付けることが一般に行われており、工事中の雨濡れや高い施工難易度から、繊維系断熱材が耐力壁外側には取り付けられてこなかった。しかしながら、かかる従来のダブル断熱によれば、コスト負担が大きいだけでなく、繊維系断熱材よりも発泡系断熱材の透湿抵抗が高いことから、冬季の蒸気分圧差により室内側から外周壁10の内部(中空部内)へ水蒸気が浸入し、内部結露を助長するおそれが存するものであった。
About the filling aspect of the heat insulating material 30 in a hollow part, the aspect which piles up and fills with the multiple types of heat insulating material 30 other than the aspect filled with a kind of heat insulating material 30 is also possible.
In this regard, in the case of the conventional double heat insulation, it is generally performed that a fiber-based heat insulating material is filled in the outer peripheral wall 10 and a foam-based heat insulating material is attached on the outer side of the load bearing wall. Because of rain and high construction difficulty, the fiber insulation has not been attached to the outside of the bearing wall. However, according to the conventional double heat insulation, not only the cost burden is large, but also the moisture permeability resistance of the foam heat insulating material is higher than that of the fiber heat insulating material. There was a possibility that water vapor entered the inside (inside the hollow portion) of the water and promoted internal condensation.

本発明の場合、中空部の厚さについて、少なくとも180mm以上の厚さが確保されているため、かかる中空部内で複数種の断熱材30を重ね合わせて充填することでダブル断熱と同様の作用効果を奏することができ、その場合に従来では困難であった外側に繊維系断熱材を充填し内側に発泡系断熱材を充填する態様も容易となるため、外皮平均熱貫流率を下げ高性能化かつ内部結露の防止に資することとなる。   In the case of the present invention, since the thickness of the hollow portion is at least 180 mm or more, the same effect as double heat insulation can be obtained by overlapping and filling a plurality of kinds of heat insulating materials 30 in the hollow portion. In this case, it is also easy to fill the outside with fiber insulation and the inside with foam insulation, which was difficult in the past. It will also help prevent internal condensation.

このように、隅柱20と構造柱22と間柱24、そして内壁材12と外壁材14、さらに断熱材30により、発明に係る木造建築物1の外周壁構造が構成されている。かかる構造により、断熱材30について内壁材12と外壁材14との間で少なくとも180mm以上の厚さを確保することができるため、付加断熱を追加することなく高い断熱力を得ることが可能となる。   In this manner, the outer peripheral wall structure of the wooden building 1 according to the invention is configured by the corner pillar 20, the structural pillar 22, the intermediate pillar 24, the inner wall material 12 and the outer wall material 14, and the heat insulating material 30. With this structure, a thickness of at least 180 mm or more can be secured between the inner wall material 12 and the outer wall material 14 for the heat insulating material 30, so that a high heat insulating power can be obtained without adding additional heat insulation. .

ところで、本発明において間柱24の太さ寸法を8インチ以上としたことで、外周壁10も当然に8インチ以上の厚さ(実際にはこれに内壁材12と外壁材14の厚さ分が加わった厚さ)になり、定法における外周壁10より厚みが増すこととなる。したがって、その増した厚さ分を室内側へ迫り出させるのか、あるいは、木造建築物1の外側へ迫り出させるのか、何れかの構造を採る必要が生じる。   By the way, in the present invention, since the thickness of the spacer 24 is 8 inches or more, the outer peripheral wall 10 naturally has a thickness of 8 inches or more (actually, the thickness of the inner wall member 12 and the outer wall member 14 is equal to this). Added thickness), and the thickness is increased from the outer peripheral wall 10 in the conventional method. Therefore, it is necessary to adopt any structure of whether the increased thickness is pushed out to the indoor side or to the outside of the wooden building 1.

この迫り出す構造を別の角度からアプローチしてみると、「外周壁10の壁芯の位置を内側あるいは外側へ移動しオフセットする構造」と換言することができる。具体的には、壁芯を内側へ移動することは外周壁10を室内側へ迫り出させることであり、逆に壁芯を外側へ移動することは外周壁10を木造建築物1の外側へ迫り出させることとなる。   When approaching this protruding structure from another angle, it can be said that “the structure in which the position of the wall core of the outer peripheral wall 10 is moved inward or outward to be offset”. Specifically, moving the wall core inward means that the outer peripheral wall 10 is pushed out indoors, and conversely moving the wall core outward causes the outer peripheral wall 10 to move outside the wooden building 1. It will be looming.

本発明に係る木造建築物1の外周壁構造では、この壁芯について内側あるいは外側の何れに移動する態様を採用しても基本的には構わない。例えば、木造建築物1が尺間法で構築される場合には、壁芯を外側へ移動して室内側の容積を確保する態様が考え得る。これに対し、木造建築物1をメーターモジュールで構築する場合には、壁芯を内側へ移動する態様も考え得る。しかしながら、壁芯の内側移動は即外周壁10が室内側に迫り出すことを意味し、これは室内寸法の狭小化を招来することとなる。したがって、本発明で好ましくは、室内寸法を変えることなく外周壁10を内側合わせとし、それにより外周壁10の壁芯について所定寸法分ほど外側へ移動しオフセットされて成る態様を採用することが望ましい。   In the outer peripheral wall structure of the wooden building 1 according to the present invention, it is basically possible to adopt a mode in which the wall core moves either inside or outside. For example, when the wooden building 1 is constructed by the span method, a mode in which the volume of the indoor side is secured by moving the wall core to the outside can be considered. On the other hand, when building the wooden building 1 with a meter module, the aspect which moves a wall core inside can also be considered. However, the inner movement of the wall core means that the outer peripheral wall 10 immediately approaches the indoor side, which leads to a narrowing of the indoor dimensions. Therefore, in the present invention, it is preferable to adopt an aspect in which the outer peripheral wall 10 is aligned inside without changing the indoor dimensions, and thereby the wall core of the outer peripheral wall 10 is moved outward by a predetermined dimension and offset. .

なお、本発明に係る木造建築物1の外周壁構造において、図2に示すように、隅柱20に隣接して調整用角材21を配設する態様が考え得る。かかる調整用角材21は、外周壁10の中空部内に定型の断熱材30を適宜カットしつつ充填した際に、隅柱20の周囲に隙間が生じることがあり、その隙間を埋めるためのものである。   In addition, in the outer peripheral wall structure of the wooden building 1 according to the present invention, as shown in FIG. 2, a mode in which the adjusting square member 21 is disposed adjacent to the corner post 20 can be considered. The adjusting square member 21 is used to fill a gap around the corner column 20 when the fixed heat insulating material 30 is appropriately cut into the hollow portion of the outer peripheral wall 10 and filled. is there.

本発明における木造建築物1の基礎立上げ部40の幅については、図3に示すように、外周壁10の厚さと同寸とする必要はない。すなわち、断熱材30の厚さに比例して桁材(銅差材)44を太くする理由はなく、これらは土台42と同じ3寸5分(105mm)幅として設計される。室内の横架材(大梁)の荷重芯は桁材44と銅差芯となるので、鉛直荷重芯P2は壁芯の位置からズレた位置でオフセットされる。このとき、各柱(隅柱20,構造柱22,間柱24)における構造用合板46が当接する部分はクリアランスを取ってカットされているため、鉛直荷重は基礎立上げ部40における土台芯P1に入ることとなる。以上から、芯振り分けにおいて布基礎主筋と必要かぶり厚さの確保が為されていれば足りるため、基礎立上げ部40の幅は約150mm幅とすれば充分である。このように、基礎立上げ部40の幅について外周壁10の厚さと同寸とする必要がないことから、材料コストの上昇を防止することが可能となる。   About the width | variety of the foundation raising part 40 of the wooden building 1 in this invention, as shown in FIG. That is, there is no reason to thicken the girders (copper differential material) 44 in proportion to the thickness of the heat insulating material 30, and these are designed to have a width of 3 dimensions and 5 minutes (105 mm) as the base 42. Since the load core of the horizontal member (large beam) in the room is a girder 44 and a copper differential core, the vertical load core P2 is offset at a position shifted from the position of the wall core. At this time, the portions where the structural plywood 46 abut on each column (corner column 20, structural column 22, and intermediate column 24) are cut with clearance, so that the vertical load is applied to the foundation core P <b> 1 in the foundation rising portion 40. Will enter. From the above, since it is sufficient to secure the fabric foundation main reinforcement and the necessary cover thickness in the centering, it is sufficient that the width of the foundation rising portion 40 is about 150 mm. Thus, since it is not necessary to make the width | variety of the foundation standup part 40 into the same dimension as the thickness of the outer peripheral wall 10, it becomes possible to prevent the raise of material cost.

桁材44と構造柱22あるいは間柱24との接合態様については、桁材44の幅寸法と構造柱22及び間柱24の太さ寸法が異なるため、そのままホゾ加工を行うと室内段差が生じることとなるが、図4に示すように、構造柱22及び間柱24の柱頭を桁材44の幅及び太さ寸法分だけカットしたL字加工とすることで、桁頭と柱頭を平坦面とすることができ、室内段差なく構築することが可能であると共に気密性シート18の施工が容易且つ完璧となる。   As for the joining mode of the spar 44 and the structural column 22 or the inter-column 24, the width dimension of the spar 44 and the thickness dimension of the structural column 22 and the inter-column 24 are different. However, as shown in FIG. 4, by making the column heads of the structural column 22 and the interphase column 24 L-shaped by cutting them by the width and thickness dimensions of the beam member 44, the column head and the column head are made flat. It can be constructed without any step in the room, and the construction of the airtight sheet 18 is easy and perfect.

屋根垂木48と桁材44及び構造柱22との接合態様については、図5に示すように、勾配カットによる接合とする。すなわち、垂木欠きとはせず、桁頭及び柱頭について屋根垂木48の勾配に合わせてカットして傾斜面を形成する構造である。このとき、桁材44と構造柱22との接合態様については、上記同様にL字加工構造を採る。これにより、屋根垂木48から内壁材12にかけて施される気密性シート18の連続性が増し、施工手間の簡素化が図れると共に住宅性能の向上に資することとなる。   About the joining aspect of the roof rafter 48, the girder 44, and the structural pillar 22, as shown in FIG. In other words, it is a structure in which the rafters are not cut and the slopes are formed by cutting the girder and stigma according to the slope of the roof rafter 48. At this time, the L-shaped structure is adopted in the same manner as described above for the joining mode of the beam member 44 and the structural column 22. As a result, the continuity of the airtight sheet 18 applied from the roof rafter 48 to the inner wall material 12 is increased, which simplifies the construction work and contributes to the improvement of the housing performance.

以上の各構成要素より成る本発明に係る木造建築物1の外周壁構造は、木造軸組工法で建造されるものであって、その施工手順については定法に従えばよく、基本的に基礎→土台→主要部分→小屋組み→屋根→床→壁の順に施工される。また、上記した各構成要素以外の構造についても、手順同様に定法に従って建造されるものである。   The outer peripheral wall structure of the wooden building 1 according to the present invention composed of each of the above components is constructed by a wooden frame construction method, and its construction procedure may be in accordance with a regular method. It is constructed in the order of foundation → main part → hut assembly → roof → floor → wall. Further, structures other than the above-described constituent elements are also constructed according to a regular method in the same manner as the procedure.

本発明は、木造軸組工法で建造される木造建築物1の外周壁構造であって、外周壁10の間柱24として太さ寸法が8インチ以上のツーバイ材を使用することで、該ツーバイ材が工場等で大量に規格生産されるものであることから、作業手間を簡略化できると共に建築コストの削減にも資し、また、付加断熱を追加することなく断熱材30の厚さを必要なだけ確保可能であって、高い断熱力を得ることが可能となり、しかも、木造軸組工法における設計自由度をそのままに建造することが可能であることから、本発明に係る「木造建築物の外周壁構造」の産業上の利用可能性は極めて大であるものと思料する。   The present invention is an outer peripheral wall structure of a wooden building 1 constructed by a wooden frame construction method, and the two-by-material having a thickness of 8 inches or more is used as a pillar 24 of the outer peripheral wall 10. Can be manufactured in large quantities at factories, etc., which can simplify the work and contribute to the reduction of construction costs, and also requires the thickness of the heat insulating material 30 without adding additional heat insulation. It is possible to obtain a high heat insulation power, and it is possible to build the design freedom in the wooden frame construction method as it is. I think that the industrial applicability of “wall structure” is extremely large.

1 木造建築物
10 外周壁
12 内壁材
14 外壁材
15 通気層
16 外壁ボード
18 気密性シート
20 隅柱
21 調整用角材
22 構造柱(平柱)
24 間柱
30 断熱材
40 基礎立上げ部
42 土台
44 桁材(銅差材)
46 構造用合板
48 屋根垂木
P1 土台芯
P2 鉛直荷重芯
DESCRIPTION OF SYMBOLS 1 Wooden building 10 Outer wall 12 Inner wall material 14 Outer wall material 15 Ventilation layer 16 Outer wall board 18 Airtight sheet 20 Corner pillar 21 Adjustment square 22 Structural pillar (flat pillar)
24 Interstitial pillar 30 Insulating material 40 Foundation rising part 42 Base 44 Girder material (copper difference material)
46 Structural plywood 48 Roof rafter P1 Base core P2 Vertical load core

本発明は、木造建築物の外周壁構築工法に関し、詳しくは、付加断熱を追加することなく必要な断熱材の厚さを確保可能な木造軸組工法で建造される木造建築物の外周壁構築工法に関するものである。 The present invention relates to an outer peripheral wall construction method of wooden buildings, particularly, the outer peripheral wall construction of wooden buildings to be built in wooden framework construction method capable ensuring the required thickness of insulation material without adding additional heat insulation It relates to the construction method .

本出願人は、木造軸組工法の設計自由度と、木造枠組壁工法の規格化木材による生産性に着目し、付加断熱を追加することなく高い断熱力を得ることができないものかという着想の下、木造軸組工法で建造される木造建築物における外周壁の間柱として規格化された所定寸法の木材を採用することで、付加断熱を追加することなく必要な断熱材の厚さを確保できる外周壁の構築工法を開発し、本発明にかかる「木造建築物の外周壁構築工法」の提案に至るものである。 The present applicant pays attention to the design freedom of the wooden frame construction method and the productivity by standardized wood of the wooden frame wall construction method, and the idea of whether high thermal insulation power can be obtained without adding additional insulation. Below, it is possible to secure the necessary insulation thickness without adding additional heat insulation by adopting wood with a predetermined size as a pillar of the outer peripheral wall in a wooden building constructed by the wooden frame construction method. The construction method of an outer peripheral wall is developed, and it leads to the proposal of the "outer wall construction method of a wooden building" concerning this invention.

本発明は、上記問題点に鑑みて為されたもので、付加断熱を追加することなく必要な断熱材の厚さを確保できる木造建築物の外周壁構築工法を提供することを課題とする。 This invention is made in view of the said problem, and makes it a subject to provide the outer peripheral wall construction method of the wooden building which can ensure the thickness of a required heat insulating material, without adding additional heat insulation.

上記課題を解決するため、本発明は、木造軸組工法で建造される木造建築物の外周壁を構築するための工法であって、外周壁の隅柱や構造柱の間に配される間柱として、太さ寸法が8インチ以上の規格生産されたツーバイ材を使用し、該間柱の柱頭を桁材の幅及び太さ寸法分だけカットしたL字加工を施し、構造柱や間柱の内側面に内壁材が装着されると共に、隅柱や構造柱と間柱の外側面に外壁材が装着され、該内壁材と外壁材とで形成される中空部内に断熱材が充填された工法となっている。 In order to solve the above problems, the present invention is a method for constructing an outer peripheral wall of a wooden building constructed by a wooden frame construction method , and is a stud arranged between corner columns and structural columns of the outer peripheral wall. As a standard, the two-sided material with a thickness dimension of 8 inches or more is used, the column head of the stud is cut by the width and thickness dimensions of the girders, and the inner surface of the structural pillar and stud in conjunction with the inner wall material is mounted, the outer wall member is mounted on the corner posts and structural columns and the outer surface of the stud, the heat insulating material in the hollow portion formed by the inner wall material and the outer wall material becomes filled method Yes.

また、本発明は、前記間柱の太さ寸法を8インチ以上としたことで厚みを増した前記外周壁について壁芯を所定寸法分ほど外側へ移動しオフセットされて成る工法を採用し得る。 Further, the present invention may employ a construction method in which the wall core is moved outward by a predetermined dimension and offset with respect to the outer peripheral wall whose thickness is increased by setting the thickness dimension of the studs to 8 inches or more.

さらに、本発明は、前記間柱が、ツーバイ材をプレーナー処理して太さ寸法を所定厚さ分ほど細小化した工法を採用し得る。 Furthermore, the present invention can employ a construction method in which the studs are planarized from a two-by material to reduce the thickness dimension by a predetermined thickness.

またさらに、本発明は、前記隅柱が、3寸5分角(105mm×105mm)もしくは4寸角(120mm×120mm)から成る工法を採用し得る。 Furthermore, the present invention can employ a construction method in which the corner column is composed of a 3 inch 5 arc (105 mm × 105 mm) or a 4 inch square (120 mm × 120 mm).

本発明に係る木造建築物の外周壁構築工法によれば、木造軸組工法における設計自由度をそのままに、断熱材の厚さを必要なだけ確保することが可能であって、付加断熱を追加することなく高い断熱力を得ることが可能になる、といった優れた効果を奏する。 According to the outer peripheral wall construction method for a wooden building according to the present invention, it is possible to ensure the necessary thickness of the heat insulating material while maintaining the design freedom in the wooden frame construction method , and add additional insulation. It is possible to obtain an excellent effect that it is possible to obtain a high heat insulation power without performing.

また、本発明に係る木造建築物の外周壁構築工法によれば、外周壁の間柱として太さ寸法が8インチ以上のツーバイ材を使用することで、該ツーバイ材が工場等で大量生産される規格材であることから、作業手間を簡略化できると共に、建築コストの削減にも資する、といった優れた効果を奏する。 Moreover, according to the outer peripheral wall construction method for a wooden building according to the present invention, the two-by material is mass-produced in a factory or the like by using a two-by material having a thickness of 8 inches or more as a pillar of the outer peripheral wall. Since it is a standard material, it has an excellent effect that it can simplify the work and contribute to reducing the construction cost.

さらに、本発明に係る木造建築物の外周壁構築工法によれば、間柱として太さ寸法8インチ以上のツーバイ材が使用されることで、内壁材と外壁材とで形成される中空部について8インチ以上の間隔が確保されているのに対し、隅柱が3寸5分角(105mm×105mm)もしくは4寸角(120mm×120mm)から成り、桁材(銅差材)は3寸5分(105mm)幅で構成されていることから、かかる隅柱や桁材(銅差材)と内壁材との間にも断熱材を充填可能であって、それにより隅柱及び桁材(銅差材)自体のヒートブリッジを防止することが可能である、といった優れた効果を奏する。 Furthermore, according to the outer peripheral wall construction method for a wooden building according to the present invention, a hollow portion formed of an inner wall material and an outer wall material is used by using a two-by material having a thickness of 8 inches or more as a stud. While a space of more than an inch is secured, the corner column is composed of 3 x 5 arcs (105mm x 105mm) or 4 squares (120mm x 120mm), and the girders (copper material) are 3 x 5 minutes. Since it is configured with a width of (105 mm), it is possible to fill the space between the corner pillars and girders (copper difference material) and the inner wall material, and thereby the corner pillars and girders (copper difference) The material has an excellent effect that it is possible to prevent the heat bridge of the material itself.

またさらに、本発明に係る木造建築物の外周壁構築工法によれば、外壁材の外側から貫通する構造金物(例えば羽子板ボルト)について、内壁材と外壁材とで形成される中空部内において断熱材で包むことができるため、該金物によるヒートブリッジも防止することが可能である、といった優れた効果を奏する。 Furthermore, according to the outer peripheral wall construction method for a wooden building according to the present invention, the heat insulating material in the hollow portion formed by the inner wall material and the outer wall material for the structural hardware (for example, the battledore bolt) penetrating from the outside of the outer wall material. Therefore, it is possible to prevent a heat bridge caused by the hardware.

本発明に係る木造建築物の外周壁構築工法の実施形態を示す全体平面図である。It is a whole top view which shows embodiment of the outer peripheral wall construction method of the wooden building which concerns on this invention. 本発明に係る木造建築物の外周壁構築工法の実施形態を示す要部拡大図である。It is a principal part enlarged view which shows embodiment of the outer peripheral wall construction method of the wooden building which concerns on this invention. 本発明に係る木造建築物の外周壁構築工法の実施形態を示す要部拡大図である。It is a principal part enlarged view which shows embodiment of the outer peripheral wall construction method of the wooden building which concerns on this invention. 本発明に係る木造建築物の外周壁構築工法の実施形態を示す要部拡大図である。It is a principal part enlarged view which shows embodiment of the outer peripheral wall construction method of the wooden building which concerns on this invention. 本発明に係る木造建築物の外周壁構築工法の実施形態を示す要部拡大図である。It is a principal part enlarged view which shows embodiment of the outer peripheral wall construction method of the wooden building which concerns on this invention.

本発明は、木造軸組工法で建造される木造建築物1の外周壁構築工法であって、外周壁10の隅柱20や構造柱22の間に配される間柱24として、太さ寸法が8インチ以上の規格生産されたツーバイ材を使用し、該間柱24の柱頭を桁材44の幅及び太さ寸法分だけカットしたL字加工を施し、構造柱22や間柱24の内側面に内壁材12が装着されると共に、隅柱20や構造柱22と間柱24の外側面に外壁材14が装着され、該内壁材12と外壁材14とで形成される中空部内に断熱材30が充填されて成ることを最大の特徴とする。
以下、本発明に係る木造建築物1の外周壁構築工法の実施形態を、図面に基づいて説明する。
The present invention is an outer peripheral wall construction method for a wooden building 1 constructed by a wooden frame construction method , and has a thickness dimension as a pillar 24 arranged between a corner pillar 20 and a structural pillar 22 of the outer peripheral wall 10. Using a two-by-material produced in a standard size of 8 inches or more, the head of the stud 24 is cut by the width and thickness dimensions of the girders 44, and an inner wall is formed on the inner surface of the structural pillar 22 or the stud 24. The material 12 is mounted, and the outer wall material 14 is mounted on the outer surface of the corner column 20, the structural column 22, and the intermediate column 24, and the heat insulating material 30 is filled in the hollow portion formed by the inner wall material 12 and the outer wall material 14. The greatest feature is that it is made.
Hereinafter, an embodiment of an outer peripheral wall construction method for a wooden building 1 according to the present invention will be described based on the drawings.

尚、本発明に係る木造建築物1の外周壁構築工法は、以下に述べる実施例に限定されるものではなく、本発明の技術的思想の範囲内、すなわち同一の作用効果を発揮できる形状や寸法等の範囲内で、適宜変更することができる。 In addition, the outer peripheral wall construction method of the wooden building 1 according to the present invention is not limited to the embodiments described below, and is within the scope of the technical idea of the present invention, that is, a shape that can exhibit the same operational effects. It can be appropriately changed within a range of dimensions and the like.

図1及び図2は、本発明に係る木造建築物1の外周壁構築工法の実施形態を示す平面図であり、図1は全体平面図、図2は要部拡大図である。
本発明に係る木造建築物1の外周壁構築工法は、木造軸組工法で建造される木造建築物1における外周壁10の構築工法であって、外周壁10の隅柱20や構造柱22の間に配される間柱24として、太さ寸法が8インチ以上の規格生産されたツーバイ材が使用される。
FIG.1 and FIG.2 is a top view which shows embodiment of the outer peripheral wall construction method of the wooden building 1 which concerns on this invention, FIG. 1 is a whole top view, FIG. 2 is a principal part enlarged view.
The outer peripheral wall construction method of the wooden building 1 according to the present invention is a construction method of the outer peripheral wall 10 in the wooden building 1 constructed by the wooden frame construction method , and includes the corner pillar 20 and the structural pillar 22 of the outer peripheral wall 10. As the stud 24 arranged between them, a standard-produced two-by-material having a thickness of 8 inches or more is used.

このように、隅柱20と構造柱22と間柱24、そして内壁材12と外壁材14、さらに断熱材30により、発明に係る木造建築物1の外周壁構築工法が構成されている。かかる構造により、断熱材30について内壁材12と外壁材14との間で少なくとも180mm以上の厚さを確保することができるため、付加断熱を追加することなく高い断熱力を得ることが可能となる。 Thus, the outer peripheral wall construction method of the wooden building 1 according to the invention is configured by the corner pillar 20, the structural pillar 22, the intermediary pillar 24, the inner wall material 12 and the outer wall material 14, and the heat insulating material 30. With this structure, a thickness of at least 180 mm or more can be secured between the inner wall material 12 and the outer wall material 14 for the heat insulating material 30, so that a high heat insulating power can be obtained without adding additional heat insulation. .

本発明に係る木造建築物1の外周壁構築工法では、この壁芯について内側あるいは外側の何れに移動する態様を採用しても基本的には構わない。例えば、木造建築物1が尺間法で構築される場合には、壁芯を外側へ移動して室内側の容積を確保する態様が考え得る。これに対し、木造建築物1をメーターモジュールで構築する場合には、壁芯を内側へ移動する態様も考え得る。しかしながら、壁芯の内側移動は即外周壁10が室内側に迫り出すことを意味し、これは室内寸法の狭小化を招来することとなる。したがって、本発明で好ましくは、室内寸法を変えることなく外周壁10を内側合わせとし、それにより外周壁10の壁芯について所定寸法分ほど外側へ移動しオフセットされて成る態様を採用することが望ましい。 In the construction method of the outer peripheral wall of the wooden building 1 according to the present invention, it is basically possible to adopt a mode in which this wall core moves either inside or outside. For example, when the wooden building 1 is constructed by the span method, a mode in which the volume of the indoor side is secured by moving the wall core to the outside can be considered. On the other hand, when building the wooden building 1 with a meter module, the aspect which moves a wall core inside can also be considered. However, the inner movement of the wall core means that the outer peripheral wall 10 immediately approaches the indoor side, which leads to a narrowing of the indoor dimensions. Therefore, in the present invention, it is preferable to adopt an aspect in which the outer peripheral wall 10 is aligned inside without changing the indoor dimensions, and thereby the wall core of the outer peripheral wall 10 is moved outward by a predetermined dimension and offset. .

なお、本発明に係る木造建築物1の外周壁構築工法において、図2に示すように、隅柱20に隣接して調整用角材21を配設する態様が考え得る。かかる調整用角材21は、外周壁10の中空部内に定型の断熱材30を適宜カットしつつ充填した際に、隅柱20の周囲に隙間が生じることがあり、その隙間を埋めるためのものである。 In addition, in the outer peripheral wall construction method of the wooden building 1 which concerns on this invention, as shown in FIG. 2, the aspect which arrange | positions the square member 21 for adjustment adjacent to the corner pillar 20 can be considered. The adjusting square member 21 is used to fill a gap around the corner column 20 when the fixed heat insulating material 30 is appropriately cut into the hollow portion of the outer peripheral wall 10 and filled. is there.

以上の各構成要素より成る本発明に係る木造建築物1の外周壁構築工法は、木造軸組工法で建造されるものであって、その施工手順については定法に従えばよく、基本的に基礎→土台→主要部分→小屋組み→屋根→床→壁の順に施工される。また、上記した各構成要素以外の構造についても、手順同様に定法に従って建造されるものである。 The outer peripheral wall construction method of the wooden building 1 according to the present invention composed of the above components is constructed by a wooden frame construction method , and the construction procedure may be in accordance with a regular method, basically → Base → Main part → Shack → Roof → Floor → Wall. Further, structures other than the above-described constituent elements are also constructed according to a regular method in the same manner as the procedure.

本発明は、木造軸組工法で建造される木造建築物1の外周壁構築工法であって、外周壁10の間柱24として太さ寸法が8インチ以上のツーバイ材を使用することで、該ツーバイ材が工場等で大量に規格生産されるものであることから、作業手間を簡略化できると共に建築コストの削減にも資し、また、付加断熱を追加することなく断熱材30の厚さを必要なだけ確保可能であって、高い断熱力を得ることが可能となり、しかも、木造軸組工法における設計自由度をそのままに建造することが可能であることから、本発明に係る「木造建築物の外周壁構築工法」の産業上の利用可能性は極めて大であるものと思料する。 The present invention is an outer peripheral wall construction method for a wooden building 1 constructed by a wooden frame construction method , and the two-by-material having a thickness of 8 inches or more is used as the intermediate pillar 24 of the outer peripheral wall 10. Since the materials are standard-produced in large quantities at factories, etc., the labor can be simplified and the construction cost can be reduced, and the thickness of the heat insulating material 30 is required without adding additional heat insulation. It is possible to secure as much as possible, and it is possible to obtain a high heat insulation power, and it is possible to build the design freedom in the wooden frame construction method as it is. I think that the industrial applicability of the “outer wall construction method ” is extremely large.

上記課題を解決するため、本発明は、木造軸組工法で建造される木造建築物の外周壁を構築するための工法であって、外周壁の隅柱や構造柱の間に配される間柱として、太さ寸法が8インチ以上の規格生産されたツーバイ材を使用し、該間柱の柱頭を桁材の幅及び太さ寸法分だけカットしたL字加工を施し、構造柱や間柱の内側面に内壁材が装着されると共に、隅柱や構造柱と間柱の外側面に外壁材が装着され、該内壁材と外壁材とで形成される中空部内に断熱材が充填され、間柱の太さ寸法を8インチ以上としたことで厚みを増した外周壁について、壁芯を所定寸法分ほど外側へ移動しオフセットされた工法となっている。
In order to solve the above problems, the present invention is a method for constructing an outer peripheral wall of a wooden building constructed by a wooden frame construction method, and is a stud arranged between corner columns and structural columns of the outer peripheral wall. As a standard, the two-sided material with a thickness dimension of 8 inches or more is used, the column head of the stud is cut by the width and thickness dimensions of the girders, and the inner surface of the structural pillar and stud with the inner wall material is attached to the outer wall member is mounted on the outer surface of the corner posts and structural columns and stud, insulation is filled in the hollow portion formed by the inner wall material and the outer wall member, the thickness of the studs About the outer peripheral wall which increased thickness by having made the dimension 8 inches or more, it is a construction method in which the wall core is moved outward by a predetermined dimension and offset .

本発明は、木造軸組工法で建造される木造建築物1の外周壁構築工法であって、外周壁10の隅柱20や構造柱22の間に配される間柱24として、太さ寸法が8インチ以上の規格生産されたツーバイ材を使用し、該間柱24の柱頭を桁材44の幅及び太さ寸法分だけカットしたL字加工を施し、構造柱22や間柱24の内側面に内壁材12が装着されると共に、隅柱20や構造柱22と間柱24の外側面に外壁材14が装着され、該内壁材12と外壁材14とで形成される中空部内に断熱材30が充填されて成り、間柱24の太さ寸法を8インチ以上としたことで厚みを増した外周壁10について、壁芯を所定寸法分ほど外側へ移動しオフセットされて成ることを最大の特徴とする。
以下、本発明に係る木造建築物1の外周壁構築工法の実施形態を、図面に基づいて説明する。
The present invention is an outer peripheral wall construction method for a wooden building 1 constructed by a wooden frame construction method , and has a thickness dimension as a pillar 24 arranged between a corner pillar 20 and a structural pillar 22 of the outer peripheral wall 10. Using a two-by-material produced in a standard size of 8 inches or more, the head of the stud 24 is cut by the width and thickness dimensions of the girders 44, and an inner wall is formed on the inner surface of the structural pillar 22 or the stud 24. The material 12 is mounted, and the outer wall material 14 is mounted on the outer surface of the corner column 20, the structural column 22, and the intermediate column 24, and the heat insulating material 30 is filled in the hollow portion formed by the inner wall material 12 and the outer wall material 14. The greatest feature is that the outer peripheral wall 10 whose thickness is increased by setting the thickness dimension of the spacer 24 to 8 inches or more is offset by moving the wall core outward by a predetermined dimension .
Hereinafter, an embodiment of an outer peripheral wall construction method for a wooden building 1 according to the present invention will be described based on the drawings.

本発明に係る木造建築物1の外周壁構築工法では、この壁芯について外側に移動する態様を採用する。すなわち、木造建築物1が尺間法で構築される場合において、壁芯を外側へ移動して室内側の容積を確保する態様となる。これに対し、木造建築物1をメーターモジュールで構築する場合において、壁芯を内側へ移動する態様も考えられるが、壁芯の内側移動は即外周壁10が室内側に迫り出すことを意味し、これは室内寸法の狭小化を招来することとなる。したがって、本発明では、室内寸法を変えることなく外周壁10を内側合わせとし、それにより外周壁10の壁芯について所定寸法分ほど外側へ移動しオフセットされて成る態様を採用する
In the outer peripheral wall construction method of the wooden building 1 according to the present invention, a mode in which the wall core moves outward is adopted. In other words, the aspect Oite, by moving the walls wick outward to secure the interior side of the volume when the wooden structure 1 is constructed by Shakuma method. In contrast, In no event building a wooden structure 1 meter module is conceivable manner to move the wall core inwardly, the inner movement of the wall core that immediately outer peripheral wall 10 is pushed out to the indoor side This means that the indoor dimensions are narrowed. Therefore, the present invention adopts a mode in which the outer peripheral wall 10 is aligned inside without changing the indoor dimensions, and thereby the wall core of the outer peripheral wall 10 is moved outward by a predetermined dimension and offset.

Claims (4)

木造軸組工法で建造される木造建築物の外周壁構造であって、
外周壁の隅柱や構造柱の間に配される間柱として、太さ寸法が8インチ以上の規格生産されたツーバイ材を使用し、構造柱や間柱の内側面に内壁材が装着されると共に、隅柱や構造柱と間柱の外側面に外壁材が装着され、該内壁材と外壁材とで形成される中空部内に断熱材が充填されて成ることを特徴とする木造建築物の外周壁構造。
An outer peripheral wall structure of a wooden building constructed by a wooden frame construction method,
As the studs arranged between the corner pillars and structural pillars of the outer peripheral wall, a standard-produced two-by-material with a thickness dimension of 8 inches or more is used, and the inner wall material is mounted on the inner side surfaces of the structural pillars and studs. An outer peripheral wall of a wooden building, characterized in that an outer wall material is mounted on the outer surface of a corner column, a structural column and an inter-column, and a heat insulating material is filled in a hollow portion formed by the inner wall material and the outer wall material Construction.
前記間柱の太さ寸法を8インチ以上としたことで厚みを増した前記外周壁について室内寸法を変えずに内側合わせとし、それにより該外周壁の壁芯を所定寸法分ほど外側へ移動しオフセットされて成ることを特徴とする請求項1に記載の木造建築物の外周壁構造。   The outer peripheral wall whose thickness has been increased by setting the thickness of the studs to 8 inches or more is aligned inside without changing the indoor dimensions, and the wall core of the outer peripheral wall is moved outward by a predetermined dimension and offset. The outer peripheral wall structure of the wooden building according to claim 1, wherein 前記間柱が、ツーバイ材をプレーナー処理して太さ寸法を所定厚さ分ほど細小化したものであることを特徴とする請求項1または請求項2に記載の木造建築物の外周壁構造。   3. The outer peripheral wall structure of a wooden building according to claim 1, wherein the studs are obtained by planarizing a two-by material and reducing the thickness dimension by a predetermined thickness. 前記隅柱が、3寸5分角(105mm×105mm)もしくは4寸角(120mm×120mm)から成ることを特徴とする木造建築物の外周壁構造。   2. The outer peripheral wall structure of a wooden building, wherein the corner pillar is composed of 3 × 5 arc minutes (105 mm × 105 mm) or 4 inch squares (120 mm × 120 mm).
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