JP2004300839A - Structure of wall of outside insulation building using structural plywood - Google Patents

Structure of wall of outside insulation building using structural plywood Download PDF

Info

Publication number
JP2004300839A
JP2004300839A JP2003096821A JP2003096821A JP2004300839A JP 2004300839 A JP2004300839 A JP 2004300839A JP 2003096821 A JP2003096821 A JP 2003096821A JP 2003096821 A JP2003096821 A JP 2003096821A JP 2004300839 A JP2004300839 A JP 2004300839A
Authority
JP
Japan
Prior art keywords
structural plywood
insulating material
heat insulating
wall
indoor side
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2003096821A
Other languages
Japanese (ja)
Inventor
Hirotaka Wada
博孝 和田
Makoto Oyama
誠 尾山
Soki Fukumuro
創喜 福室
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daiwa House Industry Co Ltd
Original Assignee
Daiwa House Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daiwa House Industry Co Ltd filed Critical Daiwa House Industry Co Ltd
Priority to JP2003096821A priority Critical patent/JP2004300839A/en
Publication of JP2004300839A publication Critical patent/JP2004300839A/en
Pending legal-status Critical Current

Links

Images

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure of the wall of an outside insulation building using a structural plywood, which can effectively prevent the indoor side from being cooled in indoor heating in winter. <P>SOLUTION: Partitions 10 for vertically partitioning a space part 7 into a plurality of chambers 11 etc. between a height position of a ceiling surface 8 and that of a floor surface 9 are installed in the space part 7 which is vertically elongated between the structural plywood 1 and an interior finishing board 4. More preferably, if the partition 10 is composed of a heat-insulating material made of a foamed resin such as foamed polystyrene. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、構造用合板を用いた外断熱建物における壁の構造に関する。
【0002】
【従来の技術】
ツーバイフォー工法による建物などのように壁部に構造用合板を用いる建物では、従来より、構造用合板の屋内側に縦枠材が備えられると共に、該縦枠材の屋内側に内装ボードが備えられ、かつ、構造用合板と内装ボードとの間の縦枠材間の上下方向に延びる空間部に断熱材が備えられている。
【0003】
ところで、上記のような構造用合板を用いる建物においても、建物の断熱性能を高いものにするために、図4(イ)(ロ)に示すように、断熱材51を構造用合板52の屋外側に備えさせることで、外断熱構造の建物にすることが行われつつある。
【0004】
【発明が解決しようとする課題】
しかるに、断熱材51を構造用合板52の屋外側に備えさせると、断熱性能が向上し、その効果を実感することができるはずのところ、冬期の屋内暖房時において必ずしもそうはならないことを指摘されることがあった。そこで、本発明者らは、その原因を究明すべく詳しい調査研究を行ったところ、次のような事実を突き止めた。
【0005】
構造用合板を採用する建物において、断熱材51を構造用合板52の屋外側に備えさせると、構造用合板52と内装ボード53との間に縦枠材54…で仕切られた上下方向に長い空間部55がそのまま残されてしまう。この空間部55は、床面56の高さ位置から天井面57の高さ位置まで連続している。
【0006】
そのため、冬期の屋内暖房時には、この空間部55内において、構造用合板52の屋内側の面部と内装ボード53の屋外側の面部との間に温度差を生じ、この温度差で、温度の低い構造用合板52側の空気は下降し、温度の高い内装ボード53側の空気は上昇し、それによって、図4(イ)に矢印で示すような空気の大きな対流を生じ、それが原因で、内装ボード53の屋内側の面が冷やされ、外断熱建物であるにもかかわらず、壁体の熱ロスが大きく、屋内が冷やされてしまうことがあるのであった。
【0007】
本発明は、上記のような解明に基づいてなされたものであって、冬期の屋内暖房時に屋内側が冷やされるのを効果的に防止することができる、構造用合板を用いた外断熱建物における壁の構造を提供することを課題とする。
【0008】
【課題を解決するための手段】
上記の課題は、構造用合板の屋内側に縦枠材が備えられると共に、該縦枠材の屋内側に内装ボードが備えられ、かつ、前記構造用合板の屋外側に外断熱用の断熱材が備えられた外断熱建物における壁の構造において、
構造用合板と内装ボードとの間を上下方向に延びる空間部に、該空間部を天井面高さ位置と床面高さ位置との間で上下方向に複数の室に仕切る仕切りが設置されていることを特徴とする、構造用合板を用いた外断熱建物における壁の構造によって解決される。
【0009】
この構造では、構造用合板と内装ボードとの間を上下方向に延びる空間部に、該空間部を天井面高さ位置と床面高さ位置との間で上下方向に複数の室に仕切る仕切りが設置されているので、冬期の屋内暖房時には、空間部内において、上記のような対流は生じるものの、空気の上昇下降の距離が短くなり、そのため、対流の勢いが抑えられて、内装ボードの屋内側の面が冷やされるのが抑制され、冬期の屋内暖房時に屋内側が冷やされるのを効果的に防止することができる。仕切りで仕切られた空間が小さくなるほどその効果は大きくなる。
【0010】
上記の壁構造において、仕切りが断熱材からなる場合は、仕切りによって仕切られた隣り合う上下の室間で空気の行き来が遮られるのみならず、熱の行き来も遮られ、屋内側が冷やされるのをより一層効果的に防止することができる。
【0011】
また、仕切りを構成する断熱材が発泡樹脂製の断熱材からなる場合は、その軽量さによって施工を容易に行うことができるし、空間部への取付けも簡素な構造、手段によって行うことができ、多数の仕切りを能率良く設置していくことができる。
【0012】
【発明の実施の形態】
次に、本発明の実施形態を図面に基づいて説明する。
【0013】
図1及び図2に示す第1実施形態の壁の構造において、1は構造用合板、2は木製の縦枠材、3は外断熱用の断熱材、4は内装ボードであり、構造用合板1の屋内側に縦枠材2…が備えられ、縦枠材2…の屋内側に内装ボード4が備えられ、構造用合板1の屋外側に外断熱用断熱材3が備えられている。外断熱用の断熱材3は、発泡ポリスチレンなどの発泡樹脂製の断熱材などからなっている。なお、5は外装面材であり、外装面材5と外断熱材3との間には通気層6が設けられている。
【0014】
そして、構造用合板1と内装ボード4との間を縦枠材2…に仕切られて上下方向に延びる空間部7…に、図1(イ)及び図2に示すように、該空間部7…を天井面8の高さ位置と床面9の高さ位置との間で上下方向に複数の室11…に仕切る仕切り10…が本実施形態では上下方向に5つ入れられている。これら各仕切り10…は発泡ポリスチレンなどの発泡樹脂製の断熱材からなっていて、上下の室11…間で空気の行き来を遮ると共に、熱の行き来も遮るようにしている。
【0015】
上記の壁構造では、構造用合板1と内装ボード4との間を上下方向に延びる空間部7…に、該空間部7…を天井面8の高さ位置と床面9の高さ位置との間で上下方向に複数の室に仕切る仕切りが設置されているので、冬期の屋内暖房時には、空間部7内で、屋内側と屋外側との温度差による空気の対流は生じるものの、空気の上昇下降の距離が仕切り10…によって短くなり、図1(イ)に矢印で示すように、仕切り10…によって仕切られた上下方向の各室11…単位でそのような対流が起こるだけであるので、対流の勢いが抑えられ、内装ボード4の屋内側の面が冷やされるのを抑制できて、冬期暖房時に屋内側が冷やされるのを効果的に防止することができる。
【0016】
しかも、仕切り10…は発泡樹脂製の断熱材からなっているので、仕切り10によって仕切られた隣り合う上下の室11…間で空気の行き来が遮られるのみならず、熱の行き来も遮られて、屋内側が冷やされるのをより一層効果的に防止することができ、また、発泡樹脂製の軽量な仕切り10…であるので、空間部7…への仕切り10…の施工を容易に行っていくことができるし、空間部7…への取付けも、圧入による嵌込み、貼付けなどの簡素な構造、手段によって行うことができ、多数の仕切り10…を能率良く空間部7…内に設置していくことができる。
【0017】
図3に示す第2実施形態の壁の構造は、仕切り10…がプラスチック系の硬質シート材からなっている。この仕切り10…では上下室11…間の熱の行き来を遮るのは難しいが、空気の行き来を遮ることはでき、それによって、冬期暖房時に内装ボード4の屋内側の面が冷やされるのを抑えることができて、屋内側が冷やされるのを効果的に防止することができる。なお、仕切りとしてプラスチック系の柔軟なシート材ないしはフィルム材を用いてもよく、その場合であっても、上下室11…間の空気の行き来を遮って屋内側が冷やされるのを効果的に防止することができ、その施工も容易に行っていくことができる。
【0018】
以上に、本発明の実施形態を示したが、本発明はこれに限られるものではなく、発明思想を逸脱しない範囲で各種の変更が可能である。例えば上記の実施形態では、床面9の高さ位置と天井面8高さ位置との間に上下方向に5つの仕切り10を入れた場合を示したが、上下方向の中間高さ位置に1つ入れて、上下方向に2つの室を形成したものであってもよいし、5つを越える数の仕切りを入れてもよいし、5つを下回る数の仕切りを入れてもよい。なお、本発明において、「仕切り」の語の概念に腰高窓などの開口部を含むものではなく、本発明の壁構造は、床面から天井面にわたって連続する壁部分の構造についてのものであることはいうまでもない。
【0019】
【発明の効果】
本発明は、以上のとおりのものであるから、構造用合板の屋内側に縦枠材が備えられると共に、該縦枠材の屋内側に内装ボードが備えられ、かつ、前記構造用合板の屋外側に外断熱用の断熱材が備えられた外断熱建物における壁の構造において、冬期の屋内暖房時に屋内側が冷やされるのを効果的に防止することができる。
【図面の簡単な説明】
【図1】第1実施形態の壁構造を示すもので、図(イ)は壁の断面側面図、図(ロ)は図(イ)のI−I線断面図である。
【図2】内装ボードを取り外した状態の壁の内部構造を示す斜視図である。
【図3】第2実施形態の壁構造を示すもので、内装ボードを取り外した状態の壁の内部構造を示す斜視図である。
【図4】従来の壁構造を示すもので、図(イ)は壁の断面側面図、図(ロ)は図(イ)のII−II線断面図である。
【符号の説明】
1…構造用合板
2…縦枠材
3…外断熱材
4…内装ボード
7…空間部
8…天井面
9…床面
10…仕切り
11…室
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a structure of a wall in an externally insulated building using structural plywood.
[0002]
[Prior art]
In a building using a structural plywood for a wall portion such as a building by a two-by-four construction method, conventionally, a vertical frame member is provided on the indoor side of the structural plywood, and an interior board is provided on the indoor side of the vertical frame member. Further, a heat insulating material is provided in a space extending vertically between the vertical frame members between the structural plywood and the interior board.
[0003]
By the way, even in a building using the above-mentioned structural plywood, as shown in FIG. 4A and FIG. 4B, in order to enhance the heat insulation performance of the building, as shown in FIGS. By providing it on the outside, buildings with external heat insulation structures are being implemented.
[0004]
[Problems to be solved by the invention]
However, it is pointed out that if the heat insulating material 51 is provided on the outdoor side of the structural plywood 52, the heat insulating performance is improved and the effect can be realized, but this is not always the case during indoor heating in winter. There was something. Then, the present inventors conducted detailed research to investigate the cause, and found the following fact.
[0005]
In a building employing a structural plywood, if the heat insulating material 51 is provided on the outdoor side of the structural plywood 52, the heat insulating material 51 is vertically long by being partitioned between the structural plywood 52 and the interior board 53 by a vertical frame member. The space 55 is left as it is. This space portion 55 is continuous from the height position of the floor surface 56 to the height position of the ceiling surface 57.
[0006]
Therefore, during indoor heating in winter, a temperature difference is generated between the indoor surface of the structural plywood 52 and the outdoor surface of the interior board 53 in the space 55, and the temperature difference is low. The air on the side of the structural plywood 52 descends, and the air on the side of the hot interior board 53 rises, thereby causing a large convection of the air as shown by the arrow in FIG. The indoor side surface of the interior board 53 is cooled, and the heat loss of the wall is large in spite of the external heat insulation building, so that the interior may be cooled.
[0007]
The present invention has been made based on the above elucidation, and can effectively prevent the indoor side from being cooled during indoor heating in winter, a wall in an externally insulated building using structural plywood. An object of the present invention is to provide a structure.
[0008]
[Means for Solving the Problems]
The above object is achieved by providing a vertical frame material on the indoor side of the structural plywood, an interior board on the indoor side of the vertical frame material, and a heat insulating material for external insulation on the outdoor side of the structural plywood. In the structure of the wall in the exterior insulation building provided with
A partition is provided in a space extending vertically between the structural plywood and the interior board, and partitions the space into a plurality of chambers vertically between a ceiling height position and a floor height position. The problem is solved by the structure of a wall in an externally insulated building using structural plywood.
[0009]
In this structure, a partition is provided in a space extending vertically between the structural plywood and the interior board, and the space is divided into a plurality of chambers in a vertical direction between a ceiling height position and a floor height position. During indoor heating in winter, the above convection occurs in the space, but the distance of the rise and fall of the air is shortened. The cooling of the inner surface is suppressed, and the indoor side can be effectively prevented from being cooled during indoor heating in winter. The effect increases as the space partitioned by the partitions becomes smaller.
[0010]
In the above-mentioned wall structure, when the partition is made of a heat insulating material, not only the flow of air is blocked between the adjacent upper and lower chambers but also the flow of heat, so that the indoor side is cooled. It can be prevented more effectively.
[0011]
When the heat insulating material constituting the partition is made of a heat insulating material made of a foamed resin, the construction can be easily performed due to its light weight, and the mounting to the space can be performed by a simple structure and means. In addition, a large number of partitions can be installed efficiently.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of the present invention will be described with reference to the drawings.
[0013]
In the wall structure of the first embodiment shown in FIGS. 1 and 2, 1 is a structural plywood, 2 is a vertical wooden frame material, 3 is a heat insulating material for external heat insulation, and 4 is an interior board. 1 is provided with a vertical frame member 2 on the indoor side, an interior board 4 is provided on the indoor side of the vertical frame members 2..., And a heat insulating material 3 on the outdoor side of the structural plywood 1 is provided. The heat insulating material 3 for external heat insulation is made of a heat insulating material made of a foamed resin such as expanded polystyrene. Reference numeral 5 denotes an exterior surface material, and a ventilation layer 6 is provided between the exterior surface material 5 and the external heat insulating material 3.
[0014]
As shown in FIGS. 1 (a) and 2, the space 7 is partitioned between the structural plywood 1 and the interior board 4 by a vertical frame member 2 and extends vertically. In the present embodiment, five partitions 10 are vertically arranged between the height position of the ceiling surface 8 and the height position of the floor surface 9 into a plurality of chambers 11. Each of the partitions 10 is made of a heat insulating material made of a foamed resin such as expanded polystyrene so as to block the flow of air between the upper and lower chambers 11 and also block the flow of heat.
[0015]
In the above-described wall structure, the space portions 7 extending vertically between the structural plywood 1 and the interior board 4 are arranged at the height positions of the ceiling surface 8 and the floor surface 9. Are installed in the space 7 during indoor heating in winter, although air convection occurs due to the temperature difference between the indoor side and the outdoor side, Since the distance of the ascending and descending is shortened by the partitions 10, and such a convection only occurs in each of the vertical chambers 11 divided by the partitions 10 as shown by arrows in FIG. In addition, the convection force is suppressed, and the indoor side surface of the interior board 4 can be prevented from being cooled, and the indoor side can be effectively prevented from being cooled during winter heating.
[0016]
Moreover, since the partitions 10 are made of a heat insulating material made of a foamed resin, not only the flow of air is blocked between the adjacent upper and lower chambers 11 partitioned by the partition 10, but also the flow of heat is blocked. In addition, it is possible to more effectively prevent the indoor side from being cooled, and since the partitions 10 are made of foamed resin, the partitions 10 are easily installed in the spaces 7. And can be attached to the space portions 7 by a simple structure and means such as press-fitting and attaching, and a large number of partitions 10 can be efficiently installed in the space portions 7. I can go.
[0017]
In the wall structure according to the second embodiment shown in FIG. 3, the partitions 10 are made of a plastic hard sheet material. Although it is difficult for the partitions 10 to block the flow of heat between the upper and lower chambers 11, it is possible to block the flow of air, thereby suppressing the cooling of the indoor surface of the interior board 4 during heating in winter. Therefore, it is possible to effectively prevent the indoor side from being cooled. The partition may be made of a plastic flexible sheet material or film material. Even in such a case, it blocks air from flowing between the upper and lower chambers 11 to effectively prevent the indoor side from being cooled. And the construction can be carried out easily.
[0018]
Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various changes can be made without departing from the spirit of the invention. For example, in the above-described embodiment, the case where five partitions 10 are inserted in the vertical direction between the height position of the floor surface 9 and the height position of the ceiling surface 8 has been described. Two compartments may be formed in the up and down direction by inserting them, or more than five partitions may be inserted, or less than five partitions may be inserted. Note that, in the present invention, the concept of the term "partition" does not include an opening such as a waist window, and the wall structure of the present invention relates to a structure of a wall portion continuous from a floor surface to a ceiling surface. Needless to say.
[0019]
【The invention's effect】
Since the present invention is as described above, a vertical frame member is provided on the indoor side of the structural plywood, and an interior board is provided on the indoor side of the vertical plywood, and the structural plywood house is provided. In a wall structure of an external heat insulating building provided with an external heat insulating material on the outside, it is possible to effectively prevent the indoor side from being cooled during indoor heating in winter.
[Brief description of the drawings]
FIG. 1 shows a wall structure according to a first embodiment. FIG. 1A is a cross-sectional side view of the wall, and FIG. 1B is a cross-sectional view taken along line II of FIG.
FIG. 2 is a perspective view showing an internal structure of a wall with an interior board removed.
FIG. 3 is a perspective view showing the wall structure of the second embodiment, showing the internal structure of the wall with the interior board removed.
FIG. 4 shows a conventional wall structure. FIG. 4A is a sectional side view of the wall, and FIG. 4B is a sectional view taken along line II-II of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Structural plywood 2 ... Vertical frame material 3 ... Outer heat insulating material 4 ... Interior board 7 ... Space 8 ... Ceiling surface 9 ... Floor surface 10 ... Partition 11 ... Room

Claims (3)

構造用合板の屋内側に縦枠材が備えられると共に、該縦枠材の屋内側に内装ボードが備えられ、かつ、前記構造用合板の屋外側に外断熱用の断熱材が備えられた外断熱建物における壁の構造において、
構造用合板と内装ボードとの間を上下方向に延びる空間部に、該空間部を天井面高さ位置と床面高さ位置との間で上下方向に複数の室に仕切る仕切りが設置されていることを特徴とする、構造用合板を用いた外断熱建物における壁の構造。
A vertical frame material is provided on the indoor side of the structural plywood, an interior board is provided on the indoor side of the vertical frame material, and a heat insulating material for external heat insulation is provided on the outdoor side of the structural plywood. In the structure of walls in insulated buildings,
A partition is provided in a space extending vertically between the structural plywood and the interior board, and partitions the space into a plurality of chambers vertically between a ceiling height position and a floor height position. A wall structure in an externally insulated building using structural plywood.
前記仕切りが断熱材からなる請求項1に記載の外断熱建物における壁の構造。The wall structure in an externally insulated building according to claim 1, wherein the partition is made of a heat insulating material. 前記仕切りを構成する断熱材が発泡樹脂製の断熱材からなる請求項2に記載の外断熱建物における壁の構造。3. The wall structure in an externally insulated building according to claim 2, wherein the heat insulating material forming the partition is made of a heat insulating material made of a foamed resin.
JP2003096821A 2003-03-31 2003-03-31 Structure of wall of outside insulation building using structural plywood Pending JP2004300839A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003096821A JP2004300839A (en) 2003-03-31 2003-03-31 Structure of wall of outside insulation building using structural plywood

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003096821A JP2004300839A (en) 2003-03-31 2003-03-31 Structure of wall of outside insulation building using structural plywood

Publications (1)

Publication Number Publication Date
JP2004300839A true JP2004300839A (en) 2004-10-28

Family

ID=33408763

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003096821A Pending JP2004300839A (en) 2003-03-31 2003-03-31 Structure of wall of outside insulation building using structural plywood

Country Status (1)

Country Link
JP (1) JP2004300839A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100458036C (en) * 2005-09-13 2009-02-04 赵振波 External wall thermal insulation slab and external wall heat insulation construction method
JP2009197532A (en) * 2008-02-25 2009-09-03 Panasonic Corp Heat insulating wall and house applied with the same
JP2013113033A (en) * 2011-11-30 2013-06-10 Sumitomo Forestry Co Ltd Outside heat insulation fire resistant structure of exterior wall

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100458036C (en) * 2005-09-13 2009-02-04 赵振波 External wall thermal insulation slab and external wall heat insulation construction method
JP2009197532A (en) * 2008-02-25 2009-09-03 Panasonic Corp Heat insulating wall and house applied with the same
JP2013113033A (en) * 2011-11-30 2013-06-10 Sumitomo Forestry Co Ltd Outside heat insulation fire resistant structure of exterior wall

Similar Documents

Publication Publication Date Title
US6754997B2 (en) Utility distribution structure
JP2008303552A (en) Ventilating device
JP2011219989A (en) Curtain wall
KR100874555B1 (en) Evacuation port structure for apartment house
KR100786672B1 (en) Fire door and frame for preventing dewing
JP2004300839A (en) Structure of wall of outside insulation building using structural plywood
JP2023002787A (en) Fireproof panel
JP4086715B2 (en) Wall structure and building
JP2016070044A (en) Draft, ventilation and heat insulation system of building
JP6080395B2 (en) Storage room for panel material and heat-generating equipment using it
KR200368316Y1 (en) Door Frame for Preventing Dew Condensation
JP2018141288A (en) Heat shield moisture-proof unit, wall panel, and exterior wall structure of building
JPH09151568A (en) Member for building structure
SK5334Y1 (en) Facade heat insulating slab
JP2007092362A (en) Building
KR20110100072A (en) A structure of a fire preventing and dew preventing door frame.
JP7174995B2 (en) A fire-resistant outer wall structure used for close-fitting external insulation having a ventilation layer, and a coping used in the fire-resistant outer wall structure
JP7428165B2 (en) Building
JP2002070214A (en) Wall face structure of building and its constructing method
JPH1018461A (en) Heat-insulating panel for wall
KR200409477Y1 (en) Ventilating block
JP2005042346A (en) Floor joist hanger for double floor, mounting method of the floor joist hanger for double floor, vent frame body and mounting method of the vent frame body
JP4538369B2 (en) Ventilation structure behind the hut
JP2007285067A (en) Underfloor ventilation structure
RU2006103118A (en) DEVICE FOR THERMAL INSULATION OF EXTERIOR WALLS OF MULTI-STOREY BUILDINGS