JP2004068496A - Ventilating structure of building - Google Patents

Ventilating structure of building Download PDF

Info

Publication number
JP2004068496A
JP2004068496A JP2002231769A JP2002231769A JP2004068496A JP 2004068496 A JP2004068496 A JP 2004068496A JP 2002231769 A JP2002231769 A JP 2002231769A JP 2002231769 A JP2002231769 A JP 2002231769A JP 2004068496 A JP2004068496 A JP 2004068496A
Authority
JP
Japan
Prior art keywords
wall
building
air flow
fire
ventilation structure
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.)
Withdrawn
Application number
JP2002231769A
Other languages
Japanese (ja)
Inventor
Kiyoshi Takeuchi
竹内 清
Yuugo Ooishi
大石 有吾
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.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical 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 Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP2002231769A priority Critical patent/JP2004068496A/en
Publication of JP2004068496A publication Critical patent/JP2004068496A/en
Withdrawn legal-status Critical Current

Links

Images

Landscapes

  • Building Environments (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilating structure of a building capable of reconciling and securing heat insulation and the quantity of an airflow inside a wall. <P>SOLUTION: The ventilating structure has a wall 1 with a first outer surface member 3 and inner surface member 4 attached to a wall frame 2 and has a heat insulating material 5 provided in the wall 1 and an airflow passage R1 formed between the first outer surface member 3 and the heat insulating material 5. At least jambs 23 of the wall frame 2 are formed of standardized members of sizes 206 or more as specified by Japan Agricultural Standards and the first outer surface member 3 and the first inner surface member 4 are spaced apart by the width of the standardized member. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
この発明は建物の通気構造に関する。
【0002】
【従来の技術】
外面材と内面材との間に空気流通路が形成された壁を備えた建物が知られている。この建物は、夏季においては、外気がその空気流通路を上方に流れて循環できるので、建物全体の放熱性能の向上が図られる利点があり、また、冬季においては、小屋裏側の暖気が空気流通路を下方に流れて循環できるので、建物全体の換気性能の向上が図られると共に、壁内での結露の発生が防止される等の利点があり、四季を通じて居住環境の向上を図ることができる。
【0003】
ところで、建物の壁を二重壁構造にすることにより、さらに居住環境を向上させる通気構造として、例えば特開2000−303579号公報に記載されているような通気構造が知られている。
上記公報記載の建物においては、壁枠組の内側に内面材を、外側に第一の外面材をそれぞれ取着し、これらの間に断熱材を介装して、第一の空気流通路を形成し、さらに第一の外面材の外側に接続片を介して第二の外面材を取着し、この第一と第二の外面材の間に第二の空気流通路を形成している。
【0004】
【発明が解決しようとする課題】
上記公報に記載されているような壁内に空気流通路を形成した建物において、壁枠組には日本農林規格で規定する寸法形式204材が多用されてきた。この寸法型式204材は厚さ38mm、幅89mmのものであった。このため、最近の住宅等には高断熱の要求が高まり、204材を使用した壁枠組みで厚みの大きい断熱材、例えば厚さ100mmのグラスウールを押さえつけて使用すると、壁内の空気流通路が狭くなったり、なくなったり、断熱性と壁内通気量の両立は困難であるという問題があった。
【0005】
また、壁内に空気流通路が形成される建物において、その空気流通路に設けられる従来のファイヤーストップは空気の流通抵抗が大きいので、空気の流通を阻害するという問題があった。
【0006】
さらにまた、壁内に空気流通路が形成された建物において、上下階の外壁境界部にファイヤーストップを設け、外壁境界部を幕板で覆うものにおいては、ファイヤーストップに幕板の受け具を取り付け、この受け具に幕板を取りつけていたので、部品点数が多く施工の工数もかかるという問題があった。
【0007】
そこで本発明は上記諸問題を解決するためになされたものであって、断熱性と、壁内通気量とを両立して確保できる建物の通気構造を提供することを第一目的とする。
【0008】
また本発明は、空気の流通を阻害しないファイヤーストップが設けられた建物の通気構造を提供することを第二の目的とし、さらにまた幕板の取り付けが容易で部品点数を削減できる建物の通気構造を提供することを第3の目的とする。
【0009】
【課題を解決するための手段】
請求項1記載の発明の建物の通気構造は、上枠、下枠及び縦枠が組まれて形成された壁枠組に外面材と内面材とが取着された壁を有し、前記壁内に断熱材が設けられ、前記壁の外面材と断熱材の間に空気流通路が形成された建物の通気構造であって、前記壁枠組の少なくとも縦枠は日本農林規格で規定する寸法形式206材、208材、210材、212材のいずれかの規格材で形成され、外面材と内面材が前記規格材の幅寸法で隔てられていることを特徴としている。
【0010】
上記日本農林規格で規定する寸法形式206材は厚さ38mm、幅140mmであり、寸法形式208材は厚さ38mm、幅184mmであり、寸法形式210材は厚さ38mm、幅235mmであり、寸法形式212材は厚さ38mm、幅286mmである。
請求項2記載の発明の建物の通気構造は、上枠、下枠及び縦枠が組まれて形成された壁枠組に第一の外面材と内面材とが取着された壁を有し、前記壁内に断熱材が設けられ、前記壁の第一の外面材と断熱材の間に第一の空気流通路が形成された建物の通気構造であって、前記壁の屋外側に第二の空気流通路を形成して第二の外面材が設けられ、前記壁枠組の少なくとも縦枠は日本農林規格で規定する寸法形式206材、208材、210材、212材のいずれかの規格材で形成され、第一の外面材と内面材が前記規格材の幅寸法で隔てられていることを特徴としている。
【0011】
請求項3記載の発明の建物の通気構造は前記第二の空気流通路の屋内側に透湿防水シートを配設したことを特徴とする請求項2に記載の通気構造である。
【0012】
請求項4記載の発明の建物の通気構造は壁内に空気流通路が形成され、この空気流通路に火災時の延焼防止のファイヤーストップが設けられた建物であって、前記ファイヤーストップが火災時に空気流通路を塞ぐ方向に向けてその体積が膨張する熱膨張性耐火材料からなることを特徴としている。
【0013】
請求項5記載の発明の建物の通気構造は壁内に空気流通路が形成され、この空気流通路に火災時の延焼防止のファイヤーストップが設けられた建物であって、ファイヤーストップが上下階の外壁境界部に設けられる幕板の受け具を有していることを特徴とする。
【0014】
(作用) この発明の請求項1記載の建物の通気構造においては、壁枠組の少なくとも縦枠は日本農林規格で規定する寸法形式206材、208材、210材、212材のいずれかの規格材で形成され、外面材と内面材が規格材の幅寸法で隔てられているので、外面材と内面材の間隔が140mm以上確保でき、厚さ100mmの断熱材を使用しても、外面材と内面材との間の空気流通路を流れる通気量を十分に確保できる。その結果、高断熱性と高通気性を両立できる。
【0015】
この発明の請求項2記載の建物の通気構造においては、前記壁の第一の外面材と断熱材の間に第一の空気流通路が形成される建物の通気構造であって、前記壁の屋外側に第二の空気流通路を形成して第二の外面材が設けられ、前記壁枠組の少なくとも縦枠は日本農林規格で規定する寸法形式206材、208材、210材、212材のいずれかの規格材で形成され、第一の外面材と内面材が前記規格材の幅寸法で隔てられているので、請求項1記載の作用効果に加えて通気性能がさらに向上し、放熱、除湿結露防止などが優れたものになる。
【0016】
この発明の請求項3記載の発明の建物の通気構造は、さらに、第二の空気流通路の屋内側に透湿防水シートを配設しているので、屋外からの雨水の浸入を防ぎ、壁内にたまった湿気は外に排出することができ、結露の発生がより確実に防がれる。
【0017】
この発明の請求項4記載の建物の通気構造においては、ファイヤーストップが火災時に空気流通路を塞ぐ方向に向けてその体積が膨張する熱膨張性耐火材料からなるので、非火災時には壁内の空気の流通を阻害しない。このため、壁内の通気量が十分確保できる。そして、火災時にはファイヤーストップが空気流通路を塞ぎ、延焼を確実に防止する。
【0018】
この発明の請求項5記載の建物の通気構造においては、ファイヤーストップが上下階の外壁境界部に設けられる幕板の受け具を有しているので、幕板を取りつけるときの工数と、部品点数が削減できる。
【0019】
【発明の実施の形態】
次に、この発明の実施の形態を図面を参照しながら説明する。
【0020】
(実施の形態1)
図1はこの発明の実施の形態1に係る建物の通気構造の縦断面図であり、上階と下階の境界線を示している。図2は図1のA−A線における断面図である。
図1において、1は下階壁、2は壁枠組、3は第一の外面材、4は内面材、5は断熱材、R1は第一の空気流通路である。
【0021】
建物は、上下に載置された建物ユニットによって構築されたユニット建物である。その建物ユニットは、床パネル7の周縁に壁1A(壁パネル)を立設した壁式工法によるものである。
床パネル7は床枠組71に床面材72を張設して構成されている。上階の床枠組71の下方にはつなぎ材8が設けられ下階の壁枠組2の上に載置され、ボルト等で締結される。
【0022】
本実施の形態1は上記建物の通気構造であって、壁枠組2に第1の外面材3と内面材4とが取着された下階壁1と、壁枠組2Aに第一の外面材3Aと内面材4Aとが取着された上階壁1Aとを有している。
上記下階壁1の壁枠組2は、上枠21、下枠22(不図示)、縦枠23(図2参照)が組まれて形成されている。また上記上階壁1Aは上枠21A(不図示)、下枠22A、縦枠23A(不図示)が組まれて形成されている。
第一の外面材3、3Aは厚さ9mmの繊維強化無機複層板(例えば大建工業(株)商品名ダイライト)でなり、内面材4、4Aは厚さ12.5mmの防湿石膏ボードからなる。
上記下階壁1、上階壁1A内には厚さ130mmのグラスウール製の断熱材5、5Aが設けられている。
【0023】
第一の外面材3と断熱材5との間、および第1の外面材3Aと断熱材5Aとの間には上下階に連通する第一の空気流通路R1が形成されている。このため、上枠21、つなぎ材8、床枠組71、下枠22Aには、連続した通孔が形成されている。この通孔は、壁厚方向の寸法×水平方向の寸法が10×50mm程度で、水平方向に225mm間隔で配置されている。
上記下階壁1、上階壁1Aの屋外側には、厚さ17mmのスペーサー11(図2参照)を介在させ、第二の空気流通路R2を形成して第二の外面材6、6Aが設けられている。この第二の外面材6、6Aはいずれも、塗装硬質木片セメント版で形成されている。
【0024】
前記上枠21、21A、下枠22、22A、縦枠23、23Aは、いずれも、日本農林規格で規定する206材で形成され、第一の外面材3と内面材4(第一の外面材3Aと内面材4Aも同じ)は206材の幅寸法(140mm)で隔てられている。
上記第二の空気流通路R2の屋内側には、透湿防水シート9が配設されている。
透湿防水シート9には、空気は通すが水は通さない微多孔膜(デュポン社の商品名タイベック)が好適に使用される。
また上下階の第二の外面材6、6Aの境界部には幕板10が設けられている。
【0025】
(実施の形態1の作用)
本実施の形態1の建物の通気構造においては、下階壁1の壁枠組2が日本農林規格で規定する寸法型式206材の規格材で形成され、第一の外面材3と内面材4が規格材の幅寸法で隔てられているので、第一の外面材3と内面材4の間隔が140mmとなり、厚さ130mmの断熱材を使用しても、第一の外面材3と内面材4との間の第一の空気流通路R1を流れる通気量を十分に確保できる。
その結果、高断熱性と高通気性を両立できる。上階壁1Aについても同様である。
【0026】
そして、前記上、下階壁1、1Aの屋外側に第二の空気流通路R2を形成して、第二の外面材6、6Aが設けられているので、さらに通気性能が向上する。
さらに第一、第二の空気流通路R1、R2はいずれも上下階に連通しているので、一層通気性能が向上する。
【0027】
さらに、第二の空気流通路R2の屋内側に透湿防水シート9を配設しているので、屋外からの雨水の浸入を防ぎ、上階壁1A、下階壁1内にたまった湿気は第一の外面材3、3Aの隙間等から透湿防水シート9を通って、外に排出することができ、結露の発生がより確実に防がれる。
【0028】
(実施の形態2)
次にこの発明の実施の形態2を図3に基づいて説明する。
図3(イ)はファイヤーストップの斜視図、(ロ)はこれを取りつけた壁の断面図、(ハ)は火災時の状態を示す壁の断面図である。
本実施の形態2の建物の通気構造は、第二の外面材6Bと第一の外面材3Bとが取着された外壁1B内に空気流通路Rが形成され、この空気流通路Rに火災時の延焼防止のファイヤーストップ20が設けられたものである。この第一の外面材3Bの内側には、壁枠組と内面材が設けられている。
上記ファイヤーストップ20は、断面コ字形の長尺形材で形成された取付材21の中に収納されており、図3(ハ)に示すように、火災時に空気流通路Rを塞ぐ方向に向けてその体積が膨張する熱膨張性耐火材料からなる。上記熱膨張性耐火材料として、例えばクロロプレンゴムとバーミキュライトを含有する樹脂組成物からなるシート材料(3M社:商品名 ファイアバリア)や、ポリウレタン樹脂と熱膨張性黒鉛を含有する樹脂組成物からなるシート材料(三井金属塗料社:商品名 メジヒカット)等が好適に使用される。
【0029】
(実施の形態2の作用)
本実施の形態2の建物の通気構造においては、ファイヤーストップ20が火災時に空気流通路Rを塞ぐ方向に向けてその体積が膨張する熱膨張性耐火材料からなるので、非火災時には壁1B内の空気の流通を阻害しない。このため、壁内の通気量が十分確保できる。そして火災時には、図3(ハ)に示すように、ファイヤーストップ20が膨張して空気流通路Rを塞ぎ、火災の延焼を確実に防止する。
【0030】
(実施の形態3)
この発明の実施の形態3を図4に基づいて説明する。
図4(イ)はファイヤーストップの斜視図、(ロ)はこれを取りつけた外壁の断面図である。
本実施の形態3の建物の通気構造は、上、下階の外壁1C、1D内に空気流通路Rが形成され、この空気流通路Rに火災時の延焼防止のファイヤーストップ30が設けられたものである。
【0031】
下階の外壁1Cは、第二の外面材6Cと第一の外面材3Cとを取着して構成され、上階の外壁1Dは第二の外面材6Dと第一の外面材3Dとを取着して構成されている。これら第一の外面材3C、3Dの内側には壁枠組みと内面材が設けられている。
上記ファイヤーストップ30は、図4(イ)に示すように、断面略ハット形状の長尺のファイヤーストップ本体31と、この本体31の上面(取りつけ時には垂直面となる)に突設された幕板10の受け具35とからなる。本体31の斜面32には上下階の空気流通路R、Rを連通させる通気孔33が形成されている。
【0032】
上記ファイヤーストップ30は、図4(ロ)に示すように、上面34を垂直方向に向けて、上下階外壁1C、1Dの境界部に設けられる。具体的にはファイヤーストップ本体31を第一の外面材3C、3Dの境界部に取りつけ、受け具35を第二の外面材6C、6Dの境界部から外方に向けて水平に突き出させ、この受け具35の突出部に幕板10を嵌着させる。
【0033】
(実施の形態3の作用)
本実施の形態3の建物の通気構造においては、ファイヤーストップ30が上、下階の外壁1C、1Dの境界部に設けられる幕板10の受け具35を有しているので、幕板10を取りつけるときの工数と、部品点数が削減できる。
【0034】
以上本発明の実施の形態を説明したが、本発明は上記実施の形態1〜3に限られるものでなく、本発明の要旨を変更しない範囲の設計変更等があっても本発明に含まれる。
【発明の効果】
この発明の請求項1、2記載の建物の通気構造によると、高断熱性と高通気性を両立できる。
【0035】
この発明の請求項3記載の建物の通気構造によると、さらに、屋外からの雨水の浸入を防ぐと共に、壁内の結露の発生がより確実に防がれる。
【0036】
この発明の請求項4記載の建物の通気構造によると、壁内の通気量が十分確保できる。
【0037】
この発明の請求項5記載の建物の通気構造によると、幕板を取りつけるときの工数と、部品点数が削減できる。
【図面の簡単な説明】
【図1】この発明の実施の形態1であって、建物の通気構造の縦断面図である。
【図2】図1のAーA線における断面図である。
【図3】この発明の実施形態2であって、(イ)はファイヤーストップの斜視図、 (ロ)はファイヤーストップを取り付けた壁の断面図、(ハ)は火災時の状態を示す壁の断面図である。
【図4】この発明の実施形態3であって、(イ)はファイヤーストップの斜視図、 (ロ)はファイヤーストップを取りつけた外壁の断面図である。
【符号の説明】
1、1A       壁(下階壁、上階壁)
2、2A       壁枠組
23         縦枠
3、3A、3B、3C 第一の外面材
4、4A       内面材
5、5A       断熱材
6、6A、6B、6C 第二の外面材
R1         第一の空気流通路
R2         第二の空気流通路
9          透湿性防水シート
1B、1C、1D   壁
R          空気流通路
10         幕板
20、30      ファイヤーストップ
35         受け具
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a ventilation structure for a building.
[0002]
[Prior art]
2. Description of the Related Art A building having a wall having an air flow passage formed between an outer surface material and an inner surface material is known. This building has the advantage that, in summer, outside air can flow upward through the air flow passage and circulate, so that the heat dissipation performance of the entire building can be improved. Since it can flow down the road and circulate, there is an advantage that the ventilation performance of the whole building is improved and dew condensation in the wall is prevented, and the living environment can be improved throughout the season. .
[0003]
By the way, as a ventilation structure for further improving the living environment by making the wall of the building a double wall structure, for example, a ventilation structure described in JP-A-2000-303579 is known.
In the building described in the above publication, an inner surface material is attached to the inside of the wall framework, and a first outer surface material is attached to the outside, and a heat insulating material is interposed therebetween to form a first airflow passage. Further, a second outer surface material is attached to the outside of the first outer surface material via a connection piece, and a second air flow passage is formed between the first and second outer surface materials.
[0004]
[Problems to be solved by the invention]
In a building in which an air flow passage is formed in a wall as described in the above-mentioned publication, a 204 type stipulated in Japanese Agricultural Standard has been frequently used for a wall frame. This dimension type 204 material had a thickness of 38 mm and a width of 89 mm. For this reason, the demand for high heat insulation is increasing in recent houses and the like, and when a thick heat insulating material, for example, a glass wool having a thickness of 100 mm is pressed against a wall frame using 204 materials and used, the air flow passage in the wall becomes narrow. There is a problem that it is difficult to achieve both heat insulation and ventilation in the wall.
[0005]
Further, in a building in which an air flow passage is formed in a wall, a conventional fire stop provided in the air flow passage has a problem in that the flow of air is obstructed due to a large air flow resistance.
[0006]
Furthermore, in a building where an air flow passage is formed in the wall, a fire stop is provided at the outer wall boundary of the upper and lower floors, and in the case of covering the outer wall boundary with a curtain plate, a catch for the curtain plate is attached to the fire stop However, since a curtain plate was attached to this receiving member, there was a problem that the number of parts was large and the man-hour for construction was required.
[0007]
Then, this invention is made in order to solve the above-mentioned problems, and an object of the present invention is to provide a ventilation structure of a building which can ensure both heat insulation and ventilation in a wall.
[0008]
A second object of the present invention is to provide a ventilation structure for a building provided with a fire stop that does not hinder the flow of air, and furthermore, a ventilation structure for a building in which a curtain plate can be easily attached and the number of parts can be reduced. The third object is to provide
[0009]
[Means for Solving the Problems]
The ventilation structure for a building according to the invention according to claim 1, further comprising a wall in which an outer surface material and an inner surface material are attached to a wall frame formed by assembling an upper frame, a lower frame, and a vertical frame. A ventilation structure for a building in which a heat insulating material is provided and an air flow passage is formed between the outer surface material of the wall and the heat insulating material, wherein at least the vertical frame of the wall frame set has a dimension type 206 defined by Japanese Agricultural Standards. Material, 208 material, 210 material, or 212 material, wherein the outer surface material and the inner surface material are separated by the width of the standard material.
[0010]
The dimension type 206 material specified by the Japanese Agriculture and Forestry Standard is 38 mm thick and 140 mm wide, the dimension type 208 material is 38 mm thick and 184 mm wide, and the dimension type 210 material is 38 mm thick and 235 mm wide. Type 212 material is 38 mm thick and 286 mm wide.
The ventilation structure for a building according to claim 2 has a wall in which a first outer member and an inner member are attached to a wall frame formed by assembling an upper frame, a lower frame, and a vertical frame, A heat insulating material is provided in the wall, and a ventilation structure of a building in which a first air flow passage is formed between a first outer surface material of the wall and the heat insulating material, wherein a second air passage is provided on the outdoor side of the wall. And a second outer surface material is provided, and at least the vertical frame of the wall frame is a standard material of any one of the size types 206, 208, 210, and 212 specified by Japanese Agricultural Standards. Wherein the first outer member and the inner member are separated by the width of the standard member.
[0011]
The ventilation structure for a building according to the third aspect of the invention is the ventilation structure according to the second aspect, wherein a moisture-permeable waterproof sheet is provided on the indoor side of the second air flow passage.
[0012]
The ventilation structure of a building according to claim 4 is a building in which an air flow passage is formed in a wall and a fire stop for preventing fire spread in a fire is provided in the air flow passage, wherein the fire stop is used in a fire. It is characterized by being made of a heat-expandable refractory material whose volume expands in the direction of closing the air flow passage.
[0013]
The ventilation structure for a building according to the fifth aspect of the present invention is a building in which an air flow passage is formed in a wall and a fire stop for preventing fire spread in a fire is provided in the air flow passage, wherein the fire stop is on upper and lower floors. The present invention is characterized in that it has a curtain plate holder provided at the outer wall boundary.
[0014]
(Operation) In the ventilation structure for a building according to claim 1 of the present invention, at least the vertical frame of the wall frame is a standard material of any one of the size types 206, 208, 210, and 212 specified by Japanese Agricultural Standards. The outer material and the inner material are separated by the width of the standard material, so that the distance between the outer material and the inner material can be secured to 140 mm or more. A sufficient amount of air flowing through the air flow passage between the inner surface material and the inner surface material can be secured. As a result, both high heat insulation and high air permeability can be achieved.
[0015]
The ventilation structure for a building according to claim 2 of the present invention is a ventilation structure for a building in which a first air flow passage is formed between a first outer surface material of the wall and a heat insulating material. A second air flow passage is formed on the outdoor side and a second outer surface material is provided, and at least the vertical frame of the wall frame has a size of 206 materials, 208 materials, 210 materials, and 212 materials defined by Japanese Agricultural Standards. Since the first outer surface material and the inner surface material are separated by the width dimension of the standard material, the ventilation performance is further improved in addition to the effect of claim 1, and the heat radiation, Excellent prevention of dehumidification and condensation.
[0016]
In the ventilation structure for a building according to the third aspect of the present invention, a moisture-permeable waterproof sheet is further disposed on the indoor side of the second airflow passage, so that rainwater can be prevented from entering from outside and the wall can be prevented. The moisture accumulated inside can be discharged to the outside, and the occurrence of dew condensation is more reliably prevented.
[0017]
In the ventilation structure for a building according to claim 4 of the present invention, since the fire stop is made of a heat-expandable refractory material whose volume expands in a direction to close the air flow passage at the time of fire, the air inside the wall at the time of non-fire. Does not hinder the distribution of For this reason, a sufficient amount of ventilation in the wall can be secured. Then, in the event of a fire, the fire stop blocks the air flow passage and reliably prevents the spread of fire.
[0018]
In the ventilation structure for a building according to claim 5 of the present invention, since the fire stop has the receiving member of the curtain plate provided at the boundary between the outer walls of the upper and lower floors, the man-hour for mounting the curtain plate and the number of parts are reduced. Can be reduced.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
[0020]
(Embodiment 1)
FIG. 1 is a vertical sectional view of a ventilation structure of a building according to Embodiment 1 of the present invention, showing a boundary between an upper floor and a lower floor. FIG. 2 is a sectional view taken along line AA of FIG.
In FIG. 1, 1 is a lower floor wall, 2 is a wall framework, 3 is a first outer surface material, 4 is an inner surface material, 5 is a heat insulating material, and R1 is a first air flow passage.
[0021]
The building is a unit building constructed by building units placed one above the other. The building unit is a wall type construction method in which a wall 1A (wall panel) is erected on the periphery of the floor panel 7.
The floor panel 7 is configured by extending a floor surface material 72 on a floor framework 71. A connecting member 8 is provided below the floor frame 71 on the upper floor, is placed on the wall frame 2 on the lower floor, and is fastened with bolts or the like.
[0022]
Embodiment 1 is a ventilation structure of the above-mentioned building, in which a lower floor wall 1 in which a first outer member 3 and an inner member 4 are attached to a wall frame 2 and a first outer member in a wall frame 2A. 3A and an upper floor wall 1A to which an inner surface material 4A is attached.
The wall frame set 2 of the lower floor wall 1 is formed by assembling an upper frame 21, a lower frame 22 (not shown), and a vertical frame 23 (see FIG. 2). The upper floor wall 1A is formed by assembling an upper frame 21A (not shown), a lower frame 22A, and a vertical frame 23A (not shown).
The first outer members 3, 3A are made of a fiber-reinforced inorganic multilayer plate having a thickness of 9 mm (for example, Dailite Co., Ltd., trade name: Dylite). Become.
In the lower floor wall 1 and the upper floor wall 1A, heat insulating materials 5, 5A made of glass wool having a thickness of 130 mm are provided.
[0023]
First air flow passages R1 communicating with the upper and lower floors are formed between the first outer surface material 3 and the heat insulating material 5 and between the first outer surface material 3A and the heat insulating material 5A. For this reason, continuous through holes are formed in the upper frame 21, the connecting member 8, the floor frame 71, and the lower frame 22A. The through holes have a dimension in the wall thickness direction × a dimension in the horizontal direction of about 10 × 50 mm, and are arranged at intervals of 225 mm in the horizontal direction.
On the outdoor side of the lower floor wall 1 and the upper floor wall 1A, a spacer 11 (see FIG. 2) having a thickness of 17 mm is interposed to form a second air flow passage R2 to form the second outer surface members 6, 6A. Is provided. Each of the second outer surface members 6, 6A is formed of a painted hard wood chip cement plate.
[0024]
Each of the upper frames 21 and 21A, the lower frames 22, 22A, and the vertical frames 23 and 23A is formed of 206 materials specified by Japanese Agricultural Standards, and the first outer material 3 and the inner material 4 (the first outer material 4). The material 3A and the inner surface material 4A are also separated by a width dimension (140 mm) of 206 materials.
On the indoor side of the second air flow passage R2, a moisture permeable waterproof sheet 9 is provided.
As the moisture-permeable waterproof sheet 9, a microporous membrane (trade name of Tyvek of DuPont) that allows air to pass but not water is preferably used.
A curtain plate 10 is provided at the boundary between the second outer surface members 6 and 6A on the upper and lower floors.
[0025]
(Operation of Embodiment 1)
In the ventilation structure of the building according to the first embodiment, the wall frame 2 of the lower floor wall 1 is formed of the standard material of the dimension type 206 specified by the Japanese Agriculture and Forestry Standard, and the first outer surface material 3 and the inner surface material 4 are formed. Since it is separated by the width dimension of the standard material, the distance between the first outer surface material 3 and the inner surface material 4 is 140 mm, and even if a heat insulating material having a thickness of 130 mm is used, the first outer surface material 3 and the inner surface material 4 And a sufficient amount of air flowing through the first air flow passage R1 can be secured.
As a result, both high heat insulation and high air permeability can be achieved. The same applies to the upper floor wall 1A.
[0026]
Since the second air flow passage R2 is formed on the outdoor side of the upper and lower floor walls 1 and 1A and the second outer surface members 6 and 6A are provided, the ventilation performance is further improved.
Furthermore, since both the first and second air flow passages R1 and R2 communicate with the upper and lower floors, the ventilation performance is further improved.
[0027]
Furthermore, since the moisture-permeable waterproof sheet 9 is disposed on the indoor side of the second air flow passage R2, it prevents rainwater from entering from outside, and the moisture accumulated in the upper floor wall 1A and the lower floor wall 1 is removed. The first outer surface members 3 and 3A can be discharged to the outside through the moisture permeable waterproof sheet 9 through the gap or the like, and the occurrence of dew condensation can be more reliably prevented.
[0028]
(Embodiment 2)
Next, a second embodiment of the present invention will be described with reference to FIG.
FIG. 3A is a perspective view of a fire stop, FIG. 3B is a cross-sectional view of a wall to which the fire stop is attached, and FIG. 3C is a cross-sectional view of a wall showing a fire state.
In the ventilation structure of a building according to the second embodiment, an air passage R is formed in an outer wall 1B to which a second outer member 6B and a first outer member 3B are attached. A fire stop 20 for preventing the spread of fire at the time is provided. A wall framework and an inner surface member are provided inside the first outer surface member 3B.
The fire stop 20 is housed in a mounting member 21 formed of a long member having a U-shaped cross section, and is directed in a direction to close the air flow passage R in the event of a fire, as shown in FIG. Made of a heat-expandable refractory material whose volume expands. Examples of the heat-expandable refractory material include a sheet material made of a resin composition containing chloroprene rubber and vermiculite (trade name: Fire Barrier) and a sheet made of a resin composition containing a polyurethane resin and heat-expandable graphite. Materials (Mitsui Metal Paint Co., Ltd., trade name: Megichut) are preferably used.
[0029]
(Operation of Embodiment 2)
In the ventilation structure of the building according to the second embodiment, since the fire stop 20 is made of a heat-expandable refractory material whose volume expands in a direction to close the air flow passage R at the time of a fire, the fire stop 20 is provided inside the wall 1B at the time of a non-fire. Does not hinder air circulation. For this reason, a sufficient amount of ventilation in the wall can be secured. Then, in the event of a fire, as shown in FIG. 3 (c), the fire stop 20 expands and blocks the air flow passage R, thereby reliably preventing the fire from spreading.
[0030]
(Embodiment 3)
Embodiment 3 of the present invention will be described with reference to FIG.
FIG. 4A is a perspective view of a fire stop, and FIG. 4B is a cross-sectional view of an outer wall to which the fire stop is attached.
In the ventilation structure of the building according to the third embodiment, an air flow passage R is formed in the outer walls 1C and 1D on the upper and lower floors, and a fire stop 30 for preventing the spread of fire in a fire is provided in the air flow passage R. Things.
[0031]
The lower-floor outer wall 1C is configured by attaching a second outer material 6C and a first outer material 3C, and the upper-floor outer wall 1D includes a second outer material 6D and a first outer material 3D. It is configured to be attached. A wall frame and an inner surface material are provided inside the first outer surface materials 3C and 3D.
As shown in FIG. 4A, the fire stop 30 includes a long fire stop body 31 having a substantially hat-shaped cross section, and a curtain plate protruding from an upper surface of the body 31 (a vertical surface when attached). And ten receivers 35. On the slope 32 of the main body 31, there are formed ventilation holes 33 for communicating the air flow passages R on the upper and lower floors.
[0032]
As shown in FIG. 4B, the fire stop 30 is provided at the boundary between the upper and lower floor outer walls 1C and 1D with the upper surface 34 facing vertically. Specifically, the fire stop main body 31 is attached to the boundary between the first external members 3C and 3D, and the receiving tool 35 is projected horizontally outward from the boundary between the second external members 6C and 6D. The curtain plate 10 is fitted to the projecting portion of the receiving tool 35.
[0033]
(Operation of Embodiment 3)
In the ventilation structure of the building according to the third embodiment, since the fire stop 30 has the receiver 35 of the curtain plate 10 provided at the boundary between the upper and lower floor outer walls 1C and 1D, the curtain plate 10 is The man-hour and the number of parts for mounting can be reduced.
[0034]
Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described first to third embodiments, and is included in the present invention even if there is a design change or the like in a range that does not change the gist of the present invention. .
【The invention's effect】
According to the ventilation structure of a building according to claims 1 and 2 of the present invention, both high heat insulation and high ventilation can be achieved.
[0035]
According to the ventilation structure for a building according to the third aspect of the present invention, it is possible to further prevent rainwater from entering from outside and to more reliably prevent dew condensation in the wall.
[0036]
According to the ventilation structure of a building according to claim 4 of the present invention, a sufficient amount of ventilation in the wall can be secured.
[0037]
According to the ventilation structure of a building according to claim 5 of the present invention, the number of steps and the number of parts when mounting the curtain plate can be reduced.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a ventilation structure of a building according to a first embodiment of the present invention.
FIG. 2 is a sectional view taken along line AA of FIG.
FIG. 3 is a second embodiment of the present invention, wherein (a) is a perspective view of a fire stop, (b) is a cross-sectional view of a wall to which a fire stop is attached, and (c) is a wall showing a fire state. It is sectional drawing.
FIG. 4 is Embodiment 3 of the present invention, in which (A) is a perspective view of a fire stop, and (B) is a cross-sectional view of an outer wall to which the fire stop is attached.
[Explanation of symbols]
1, 1A wall (lower floor, upper floor)
2, 2A wall frame set 23 vertical frame 3, 3A, 3B, 3C first outer surface material 4, 4A inner surface material 5, 5A heat insulating material 6, 6A, 6B, 6C second outer surface material R1 first air flow passage R2 Second air flow passage 9 Moisture-permeable waterproof sheet 1B, 1C, 1D Wall R Air flow passage 10 Curtain plate 20, 30 Fire stop 35 Receiver

Claims (5)

上枠、下枠及び縦枠が組まれて形成された壁枠組に外面材と内面材とが取着された壁を有し、前記壁内に断熱材が設けられ、前記壁の外面材と断熱材の間に空気流通路が形成された建物の通気構造であって、前記壁枠組の少なくとも縦枠は日本農林規格で規定する寸法型式206材、208材、210材、212材のいずれかの規格材で形成され、外面材と内面材が前記規格材の幅寸法で隔てられていることを特徴とする建物の通気構造。An upper frame, a lower frame and a vertical frame have a wall in which an outer material and an inner material are attached to a wall frame formed by assembling, and a heat insulating material is provided in the wall, and an outer material of the wall is provided. A ventilation structure of a building in which an air flow passage is formed between heat insulating materials, wherein at least a vertical frame of the wall frame is any one of a size model 206 material, a 208 material, a 210 material, and a 212 material specified by Japanese Agricultural Standards. A ventilation structure for a building, which is formed of a standard material, wherein an outer surface material and an inner surface material are separated by the width of the standard material. 上枠、下枠及び縦枠が組まれて形成された壁枠組に第一の外面材と内面材とが取着された壁を有し、前記壁内に断熱材が設けられ、前記壁の第一の外面材と断熱材の間に第一の空気流通路が形成された建物の通気構造であって、前記壁の屋外側に第二の空気流通路を形成して第二の外面材が設けられ、前記壁枠組の少なくとも縦枠は日本農林規格で規定する寸法型式206材、208材、210材、212材のいずれかの規格材で形成され、第一の外面材と内面材が前記規格材の幅寸法で隔てられていることを特徴とする建物の通気構造。An upper frame, a lower frame, and a vertical frame have a wall formed by assembling a first outer surface material and an inner surface material, the wall having a wall attached thereto, a heat insulating material is provided in the wall, A ventilation structure for a building in which a first airflow passage is formed between a first outer surface material and a heat insulating material, wherein a second airflow passage is formed on the outdoor side of the wall, and a second outer surface material is formed. Is provided, at least the vertical frame of the wall frame is formed of any of the standard materials of the size type 206 material, 208 material, 210 material, 212 material specified by Japanese Agricultural Standards, and the first outer surface material and the inner surface material are A ventilation structure for a building, which is separated by the width of the standard material. 前記第二の空気流通路の屋内側に透湿防水シートを配設したことを特徴とする請求項2に記載の建物の通気構造。The ventilation structure for a building according to claim 2, wherein a moisture-permeable waterproof sheet is disposed on the indoor side of the second air flow passage. 壁内に空気流通路が形成され、この空気流通路に火災時の延焼防止のファイヤーストップが設けられた建物の通気構造であって、前記ファイヤーストップが火災時に空気流通路を塞ぐ方向に向けてその体積が膨張する熱膨張性耐火材料からなることを特徴とする建物の通気構造。An air flow passage is formed in a wall, and the fire stop is provided in the air flow passage to prevent a fire from spreading during a fire.This is a ventilation structure for a building, wherein the fire stop is directed in a direction to close the air flow passage in a fire. A ventilation structure for a building, which is made of a heat-expandable refractory material whose volume expands. 壁内に空気流通路が形成され、この空気流通路に火災時の延焼防止のファイヤーストップが設けられた建物の通気構造であって、前記ファイヤーストップが上下階の外壁境界部に設けられる幕板の受け具を有していることを特徴とする建物の通気構造。A ventilation structure for a building in which an air flow passage is formed in a wall and a fire stop for preventing a fire from spreading during a fire is provided in the air flow passage, wherein the fire stop is provided at an outer wall boundary between upper and lower floors. A ventilation structure for a building, characterized by having a receiving member of (1).
JP2002231769A 2002-08-08 2002-08-08 Ventilating structure of building Withdrawn JP2004068496A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002231769A JP2004068496A (en) 2002-08-08 2002-08-08 Ventilating structure of building

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002231769A JP2004068496A (en) 2002-08-08 2002-08-08 Ventilating structure of building

Publications (1)

Publication Number Publication Date
JP2004068496A true JP2004068496A (en) 2004-03-04

Family

ID=32017437

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002231769A Withdrawn JP2004068496A (en) 2002-08-08 2002-08-08 Ventilating structure of building

Country Status (1)

Country Link
JP (1) JP2004068496A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009249869A (en) * 2008-04-03 2009-10-29 Sekisui Chem Co Ltd Construction method for unit building
JP5913702B1 (en) * 2015-08-07 2016-04-27 有限会社岡野住宅 Peripheral wall construction method for wooden buildings

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009249869A (en) * 2008-04-03 2009-10-29 Sekisui Chem Co Ltd Construction method for unit building
JP5913702B1 (en) * 2015-08-07 2016-04-27 有限会社岡野住宅 Peripheral wall construction method for wooden buildings

Similar Documents

Publication Publication Date Title
JP5191962B2 (en) curtain wall
JP2008038556A (en) Ventilation wall structure
JP2004068496A (en) Ventilating structure of building
JP4722650B2 (en) Building
JPH1122307A (en) Sash structure for method of venting construction
JP6644654B2 (en) Upper drainage structure at building opening
JP2002146932A (en) Outside heat insulating termite prevention structure of building and its building
JPH053606Y2 (en)
JP3187597U (en) Underfloor sealing structure of building and building having the underfloor sealing structure
JP3922488B2 (en) Aeration drainage structure
JP2000027326A (en) Ventilation structure of building and ventilation structure of unit building
JP3368486B2 (en) Architectural structures and buildings with them
JP2575802Y2 (en) Fire spread prevention material for fire spread prevention structure in outer wall ventilation structure
JP2000248647A (en) Building
JP2000054518A (en) Building structure having venting property
JP2007070864A (en) Venting structure of building
JPH1018461A (en) Heat-insulating panel for wall
JPH0554792U (en) Ventilation hole integrated door or sliding door
JP2695652B2 (en) House dehumidifier
JP2613717B2 (en) Heat insulation structure of overhanging part of building
JP3797737B2 (en) panel
JP5373154B2 (en) Ventilation equipment
JP3922489B2 (en) Aeration drainage structure
JP2014173312A (en) Ventilation structure in wall body structure part of dwelling house, and aerator used for the same
JPH11107439A (en) Ventilation block

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050616

A761 Written withdrawal of application

Free format text: JAPANESE INTERMEDIATE CODE: A761

Effective date: 20060825