JP2005200949A

JP2005200949A - Wall structure

Info

Publication number: JP2005200949A
Application number: JP2004008915A
Authority: JP
Inventors: Mitsuhiko Ogino; 光彦荻野; Hajime Ishiyama; 元石山
Original assignee: IG Technical Research Inc
Current assignee: IG Technical Research Inc
Priority date: 2004-01-16
Filing date: 2004-01-16
Publication date: 2005-07-28

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wall structure forming the dehumidifying function, the dew-proofing function, the heat insulating function and the waterproof function. <P>SOLUTION: This wall structure blocks up an upper opening 7 and a lower opening 8 or the upper opening 7 by a moisture permeable member, in the upper opening 7 and the lower opening 8 formed in a lower part and an upper part of a moisture discharging layer γ between a backing α and an outer wall material A. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、排湿機能、結露防止機能、断熱機能、防水機能、等を形成した壁構造に係るものである。 The present invention relates to a wall structure in which a moisture removal function, a dew condensation prevention function, a heat insulation function, a waterproof function, and the like are formed.

壁体内が密閉状態の場合、水蒸気の逃げ場が無く、外気温度が低いと外壁材裏面や壁体内に結露が発生する。そこで、壁体内の水蒸気を外気に排出して内部結露を防止したり、土台や柱にしみ込んだ水分を外気に排出するために、外壁材と躯体間に厚さ２０ｍｍ程度の空気層を設ける工法、所謂通気工法が開発された。本来、通気工法とは、壁内結露防止のための工法である。（例えば、特許文献１〜６参照）。 When the wall is hermetically sealed, there is no place for water vapor to escape, and condensation occurs on the back of the outer wall material or on the wall if the outside air temperature is low. Therefore, a method of providing an air layer with a thickness of about 20 mm between the outer wall material and the housing in order to discharge water vapor in the wall to the outside air to prevent internal dew condensation, or to discharge moisture that has soaked into the base or pillar to the outside air. A so-called aeration method has been developed. Originally, the ventilation method is a method for preventing dew condensation in the wall. (For example, refer to Patent Documents 1 to 6).

特開平０９−１１９１７５号公報JP 09-119175 A 特開平０９−１４４１５２号公報JP 09-144152 A 特開平１１−２４１４２７号公報Japanese Patent Laid-Open No. 11-241427 特開平１１−２９３８０１号公報JP 11-293801 A 特開２０００−２９１１６９号公報JP 2000-291169 A 特開２００３−３２８４６０号公報JP 2003-328460 A

しかしながら、特許文献１〜６は湿気を排出するが、外気が外壁材の裏面を通過するために、外壁材に断熱性のある部材を形成しても断熱材としての効果を発揮できず、外壁材が断熱材として機能しないものであった。また、窯業系外壁材の雨漏りを防止するために通気工法を採用することが多くなり、現在では雨仕舞いのための工法として考えている人も多い。 However, Patent Documents 1 to 6 exhaust moisture, but since the outside air passes through the back surface of the outer wall material, even if a heat insulating member is formed on the outer wall material, the effect as a heat insulating material cannot be exhibited. The material did not function as a heat insulating material. Moreover, in order to prevent the leakage of ceramic outer wall materials, a ventilation method is often adopted, and many people are now considering it as a method for finishing rain.

本発明はこのような欠点を解決するために、下地と外壁材間の排湿層の下方部分と上方部分に形成された上開口と下開口の、上開口と下開口、あるいは上開口を透湿性を有する部材で閉塞した壁構造を提供するものである。 In order to solve such a drawback, the present invention allows the upper opening and the lower opening, or the upper opening and the upper opening formed in the lower part and the upper part of the moisture removal layer between the base and the outer wall material to pass through. A wall structure closed with a wet member is provided.

本発明に係る壁構造によれば、（１）壁内の湿気を外部に放出することができる。（２）土台、柱の水分を外部に放出することができる。（３）排湿層を空気が移動しなくなるために、空気層としての断熱性を生かせる。（４）防水性も維持できる。（５）排湿層（壁）内に結露が生じない。（６）結露が生じないので、躯体の腐朽が生じにくい。（７）排湿層（空気層）の外側に位置する外壁材が断熱材として機能する。（８）断熱性を有する外壁材を使用すれば、外壁材の断熱性を生かすことができる。（８）外壁材が断熱材として機能するために、夏季の冷房効率、冬季の暖房効率を高められる。（９）外壁材の断熱性により、外壁材の裏面および壁内の温度が高く保持され、より内部結露の発生が抑えられる。等の特徴、効果がある。 According to the wall structure of the present invention, (1) moisture in the wall can be released to the outside. (2) Moisture of the base and pillar can be released to the outside. (3) Since the air does not move through the exhaust layer, heat insulation as an air layer can be utilized. (4) The waterproofness can be maintained. (5) Condensation does not occur in the moisture layer (wall). (6) Since condensation does not occur, it is difficult for the enclosure to decay. (7) The outer wall material located outside the moisture exhaust layer (air layer) functions as a heat insulating material. (8) If an outer wall material having a heat insulating property is used, the heat insulating property of the outer wall material can be utilized. (8) Since the outer wall material functions as a heat insulating material, the cooling efficiency in summer and the heating efficiency in winter can be improved. (9) Due to the heat insulating property of the outer wall material, the temperatures of the back surface and the wall of the outer wall material are kept high, and the occurrence of internal condensation is further suppressed. There are features and effects.

以下に図面を用いて本発明に係る壁構造について詳細に説明する。図１〜図４は本発明に係る壁構造を示す断面図、図５（ａ）〜（ｄ）〜図７（ａ）、（ｂ）は外壁材Ａを示す説明図である。図中、αは下地、βは釘等の固定具、γは排湿層を示している。 The wall structure according to the present invention will be described in detail below with reference to the drawings. 1 to 4 are sectional views showing a wall structure according to the present invention, and FIGS. 5A to 5D are explanatory views showing an outer wall material A. FIG. In the figure, α indicates a base, β indicates a fixture such as a nail, and γ indicates a moisture removal layer.

下地αは、内装材１、ポリエチレンシート等の防湿層２、主柱、間柱等の躯体３、躯体３間に形成したグラスウール等の断熱材４より形成したものである。 The base α is formed from the interior material 1, a moisture-proof layer 2 such as a polyethylene sheet, a housing 3 such as a main pillar and a stud, and a heat insulating material 4 such as glass wool formed between the housings 3.

５は防風透湿層（二点鎖線で示す）であり、透湿防水シート（風・雨を通さず湿気だけを通す不織布）、あるいは透湿防水板（透湿性の高いシージングボード、シージングインシュレーションボード、等）よりなり、透湿性、防風性、防水性、等を有する部材より形成したものである。勿論、壁材として確実な防水性（十分な表面止水）が保たれていれば必要はないものである。 5 is a wind-proof moisture-permeable layer (indicated by a two-dot chain line), a moisture-permeable waterproof sheet (nonwoven fabric that passes only moisture without passing through wind and rain), or a moisture-permeable waterproof board (a highly moisture-permeable sizing board, sizing insulation) Board, etc.) and formed from a member having moisture permeability, windproof property, waterproof property, and the like. Of course, it is not necessary as long as a certain waterproof property (sufficient surface water stoppage) is maintained as a wall material.

６は排湿層成部材であり、排湿層γが上下開口部と連通するように形成したものであり、例えば縦胴縁である。勿論、排湿層γが上下開口部と連通するように形成されれば、横胴縁でも、排湿層形成部材６の替わりに、排湿層γ（溝）を形成した板材を部分的あるいは全面に形成してもかまわない。排湿層形成部材６の材質は、木材、金属材、プラスチック材、等である。 Reference numeral 6 denotes a moisture layer forming member, which is formed so that the moisture layer γ communicates with the upper and lower openings, and is, for example, a vertical trunk edge. Of course, if the moisture draining layer γ is formed so as to communicate with the upper and lower openings, a plate material in which the moisture draining layer γ (groove) is formed in place of the moisture draining layer forming member 6 at the lateral trunk edge may be used. It may be formed on the entire surface. The material of the moisture removal layer forming member 6 is wood, metal material, plastic material, or the like.

７は上開口、８は下開口であり、排湿層形成部材６により形成された排湿層γと連通し、屋内の湿気を外部に排出するための出口である。 Reference numeral 7 denotes an upper opening, and 8 denotes a lower opening, which communicates with the moisture layer γ formed by the moisture layer forming member 6 and is an outlet for discharging indoor moisture to the outside.

７ａ上透湿部、８ａは下透湿部であり、上開口７、下開口８を透湿性のある部材で閉塞したものである。透湿性のある部材とは、空気を通さず（防風）湿気だけを外部に排出する部材であり、例えば、透湿防水シートである。また、上透湿部７ａと下透湿部８ａは、両方形成したり、下透湿部８ａを形成せずに上透湿部７ａのみを形成するものである。なお、図１では両方形成している場合を示すものである。勿論、上透湿部７ａのみを形成した場合でも、下開口８から排湿層γへの外気の流入はない。 Reference numeral 7a denotes an upper moisture-permeable portion and 8a denotes a lower moisture-permeable portion, and the upper opening 7 and the lower opening 8 are closed with a moisture-permeable member. The moisture permeable member is a member that does not allow air to pass through (windproof) and discharges only moisture to the outside, and is, for example, a moisture permeable waterproof sheet. Further, both the upper moisture permeable portion 7a and the lower moisture permeable portion 8a are formed, or only the upper moisture permeable portion 7a is formed without forming the lower moisture permeable portion 8a. FIG. 1 shows a case where both are formed. Of course, even when only the upper moisture permeable portion 7a is formed, there is no inflow of outside air from the lower opening 8 to the moisture exhaust layer γ.

図では、防風透湿層５として透湿防水シートを形成し、透湿防水シートで排湿層形成部材６の上下端部を巻き込むようにカバーし、防水層５の上下端部を上透湿部７ａ、下透湿部８ａとして形成した場合を示すものである。 In the figure, a moisture-permeable waterproof sheet is formed as the wind-proof moisture-permeable layer 5, the moisture-permeable waterproof sheet covers the upper and lower ends of the moisture-exhaust layer forming member 6, and the upper and lower ends of the waterproof layer 5 are The case where it forms as the part 7a and the lower moisture-permeable part 8a is shown.

９は止縁、１０は水切りであり、外壁材Ａの上下端部を納めるための部材である。 9 is a stop edge, 10 is a drainer, and is a member for accommodating the upper and lower ends of the outer wall material A.

１１は防水層（点線で示す）であり、排湿層γ内に雨水等が浸入しないように形成したものである。勿論、外壁材Ａの防水性（十分な表面止水）が保たれていれば必要はないものである。例えば、アスファルトフェルト、透湿防水シート（防風透湿層５と同一部材）、等である。 Reference numeral 11 denotes a waterproof layer (indicated by a dotted line), which is formed so that rainwater or the like does not enter the moisture removal layer γ. Of course, it is not necessary if the outer wall material A is kept waterproof (sufficient surface water stoppage). For example, asphalt felt, moisture-permeable waterproof sheet (same member as wind-proof moisture-permeable layer 5), and the like.

Ａは外壁材であり、断熱性、防水性、気密性、耐候性、等の機能を有する部材である。例えば、図５（ａ）〜ｄ）、図６に示すような金属製サイディング材等を使用するものである。 A is an outer wall material, and is a member having functions such as heat insulation, waterproofness, airtightness, weather resistance, and the like. For example, a metal siding material as shown in FIGS. 5A to 5D and FIG. 6 is used.

また、図７（ａ）、（ｂ）に示す外壁材Ａは、図６に示すような断熱材を形成した金属製サイディング材よりなる外壁材Ａの表面材に、引っ掛けと接着剤による接着により形成し、壁を形成するものである。 Moreover, the outer wall material A shown in FIGS. 7A and 7B is obtained by hooking and bonding with an adhesive to the surface material of the outer wall material A made of a metal siding material having a heat insulating material as shown in FIG. To form a wall.

次に、図１〜図４（ａ）〜（ｄ）を用いて本発明に係る壁構造の施工方法について説明する。まず、内装材１、ポリエチレンシート等の防湿層２、主柱、間柱等の躯体３、躯体３間に形成したグラスウール等の断熱材４より形成した下地α上に、防風透湿層５（透湿防水シート）を形成する。この場合、排湿層形成部材６の厚さをＷ、上開口７の幅をＨ、下開口８の幅をｈとすると、防風透湿層５はＷ＋Ｈ以上の長さを壁面の上端部分より長く、Ｗ＋ｈ以上の長さを壁面の下端部より長く形成しておく。 Next, the wall construction method according to the present invention will be described with reference to FIGS. 1 to 4A to 4D. First, a wind- and moisture-permeable layer 5 (permeating layer) is formed on an interior material 1, a moisture-proof layer 2 such as a polyethylene sheet, a frame 3 such as a main pillar and an inter-column, and a base α formed of a heat insulating material 4 such as glass wool formed between the frames 3. A wet waterproof sheet). In this case, if the thickness of the moisture removal layer forming member 6 is W, the width of the upper opening 7 is H, and the width of the lower opening 8 is h, the wind-proof moisture permeable layer 5 is longer than W + H from the upper end portion of the wall surface. Long and longer than W + h is formed longer than the lower end of the wall surface.

その後、厚さ１８ｍｍ×幅４５ｍｍ程度の排湿層形成部材６を４５５ｍｍピッチで縦に複数本固定し、防風透湿層５の上端と下端を排湿層形成部材６の表面側へ折り返し、上端の上透湿部７ａと下端の下透湿部８ａを形成する。 Thereafter, a plurality of moisture exhaust layer forming members 6 having a thickness of about 18 mm and a width of about 45 mm are vertically fixed at a pitch of 455 mm, and the upper end and the lower end of the wind-proof moisture permeable layer 5 are folded back to the surface side of the moisture exhaust layer forming member 6. The upper moisture-permeable portion 7a and the lower moisture-permeable portion 8a at the lower end are formed.

排湿層形成部材６と上透湿部７ａと下透湿部８ａの形成が完了したら、上透湿部７ａと下透湿部８ａを閉塞しないように排湿層形成部材６上にアスファルトフェルトよりなる防水層１１、止縁９、水切り１０を形成する。 When the formation of the moisture permeable layer forming member 6, the upper moisture permeable portion 7a, and the lower moisture permeable portion 8a is completed, the asphalt felt on the moisture permeable layer forming member 6 so as not to block the upper moisture permeable portion 7a and the lower moisture permeable portion 8a. A waterproof layer 11, a stop edge 9, and a drainer 10 are formed.

その後、防水層１１上に図４（ｂ）に示すような外壁材Ａを施工し、施工を完了するものである。 Thereafter, the outer wall material A as shown in FIG. 4B is constructed on the waterproof layer 11 to complete the construction.

以上説明したのは本発明に係る壁構造の一実施例にすぎず、図８〜図２６に示すように形成することもできる。 The above description is only one embodiment of the wall structure according to the present invention, and it can be formed as shown in FIGS.

図８〜図１８は本発明に係る壁構造のその他の実施例を示す断面図、図１９〜図２４は本発明に係る壁構造に使用する下地αのその他の実施例を示す断面図、図２５、図２６は本発明に係る壁構造のその他の実施例を示す断面図ある。 8 to 18 are sectional views showing other embodiments of the wall structure according to the present invention, and FIGS. 19 to 24 are sectional views and drawings showing other embodiments of the base α used in the wall structure according to the present invention. 25 and 26 are sectional views showing other embodiments of the wall structure according to the present invention.

図８〜図１８において、図８は外壁材Ａと水切り１０間に、下開口８、下透湿部８ａを形成した壁構造、図９は外壁材Ａと水切り１０間に、下開口８を形成した壁構造、図１０は上開口７、上透湿部７ａ、下開口８を形成した壁構造である。 8 to 18, FIG. 8 shows a wall structure in which a lower opening 8 and a lower moisture permeable portion 8 a are formed between the outer wall material A and the drainer 10, and FIG. 9 shows a lower opening 8 between the outer wall material A and the drainer 10. FIG. 10 shows a wall structure in which an upper opening 7, an upper moisture permeable portion 7a, and a lower opening 8 are formed.

図１１は上開口７、上透湿部７ａ、下開口８、下透湿部８ａを形成し、防水層１１を削除した壁構造、図１２は上開口７、上透湿部７ａ、下開口８を形成し、防水層１１を削除した壁構造である。 11 shows a wall structure in which the upper opening 7, the upper moisture permeable portion 7a, the lower opening 8, and the lower moisture permeable portion 8a are formed and the waterproof layer 11 is omitted. FIG. 12 shows the upper opening 7, the upper moisture permeable portion 7a, and the lower opening. 8 is a wall structure in which the waterproof layer 11 is omitted.

図１３は防風透湿層５を防水層１１として外壁材Ａの裏面に形成し、防水層１１として形成した防風透湿層５により上透湿部７ａ、下透湿層８ａを形成した壁構造、図１４は防風透湿層５を防水層１１の替わりに外壁材Ａの裏面に形成し、防水層１１として形成した防風透湿層５により上透湿部７ａを形成した壁構造である。 FIG. 13 shows a wall structure in which a windproof and moisture permeable layer 5 is formed as a waterproof layer 11 on the back surface of the outer wall material A, and the windproof and moisture permeable layer 5 formed as the waterproof layer 11 forms an upper moisture permeable portion 7a and a lower moisture permeable layer 8a. FIG. 14 shows a wall structure in which the wind- and moisture-permeable layer 5 is formed on the back surface of the outer wall material A instead of the waterproof layer 11 and the wind- and moisture-permeable layer 5 formed as the waterproof layer 11 forms the upper moisture-permeable portion 7a.

図１５は防風透湿層５を削除し、上下端部にのみ防風透湿層５を形成して上開口７、上透湿部７ａ、下開口８、下透湿部８ａを形成した壁構造、図１６は防風透湿層５を削除し、上下端部にのみ防風透湿層５を形成して上開口７、上透湿部７ａ、下開口８を形成した壁構造である。 FIG. 15 shows a wall structure in which the windproof / breathable layer 5 is deleted and the windproof / breathable layer 5 is formed only at the upper and lower ends to form the upper opening 7, the upper moisture permeable part 7a, the lower opening 8, and the lower moisture permeable part 8a. FIG. 16 shows a wall structure in which the windproof / breathable layer 5 is removed and the windproof / breathable layer 5 is formed only at the upper and lower ends to form the upper opening 7, the upper moisture permeable portion 7 a, and the lower opening 8.

図１７は防風透湿層５、防水層１１を削除し、上下端部にのみ防風透湿層５を形成して上開口７、上透湿部７ａ、下開口８、下透湿部８ａを形成した壁構造、図１８は防風透湿層５、防水層１１を削除し、上下端部にのみ防風透湿層５を形成して上開口７、上透湿部７ａ、下開口８を形成した壁構造である。 In FIG. 17, the windproof / breathable layer 5 and the waterproof layer 11 are deleted, and the windproof / breathable layer 5 is formed only at the upper and lower ends to form the upper opening 7, the upper moisture permeable portion 7 a, the lower opening 8, and the lower moisture permeable portion 8 a. The formed wall structure, FIG. 18 shows that the windproof / breathable layer 5 and the waterproof layer 11 are deleted, and the windproof / breathable layer 5 is formed only at the upper and lower ends to form the upper opening 7, the upper moisture permeable part 7 a, and the lower opening 8. Wall structure.

図１９〜図２４において、図１９は内装材１、ポリエチレンシート等の防湿層２、主柱、間柱等の躯体３、躯体３間に形成したグラスウール等の断熱材４より形成した下地α、図２０は図１９の下地αに構造用面材１２を形成した下地α、図２１は図１９の下地αに外張断熱層１３を形成した下地α、図２２は図２１の下地αに防風透湿層５を形成した下地α、図２３は図２１の下地αの断熱材４を削除した下地α、図２４は図２３の下地α上に防風透湿層５を形成した下地αである。 19 to 24, FIG. 19 shows an interior material 1, a moisture-proof layer 2 such as a polyethylene sheet, a main body 3, a main pillar, a pillar 3, etc., and a base α formed from a heat insulating material 4 such as glass wool formed between the housings 3, FIG. 20 is a base α in which the structural surface material 12 is formed on the base α in FIG. 19, FIG. 21 is a base α in which the outer heat insulating layer 13 is formed on the base α in FIG. 19, and FIG. FIG. 23 shows the base α in which the heat insulating material 4 of the base α in FIG. 21 is deleted, and FIG. 24 shows the base α in which the wind-proof moisture-permeable layer 5 is formed on the base α in FIG.

構造用面材１２の一例としては、構造用合板であり、建築物の構造耐力上主要な部分に使用する合板である。構造用合板の構造用合板１級（特類・１類）とは、２×４住宅（ツーバイフォー）等の建築物の耐力構造上必要な部位に使用される合板で、Ｋプライと呼ばれるものである。寸法は厚さ７．５〜２４ｍｍ、幅＝９１０・１２２０ｍｍ、等（幅は任意）、長さ＝１８２０・２４３０・２７３０ｍｍ、等（長さは任意）である。単板の厚さが規定され、それによって合板の強度保証をしているものである。また、構造用合板の構造用合板２級（特類・１類）とは、１級と同様に使用されるが針葉樹合板が主としたものである。寸法は厚さ＝５．５〜２４ｍｍ、幅＝９１０・１２２０ｍｍ、等（幅は任意）、長さ＝１８００・１８２０・２４３０・２７３０ｍｍ、等（長さは任意）である。外装用には「特類」を使用すると良いものである。 An example of the structural surface material 12 is a structural plywood, which is a plywood used for a main part in terms of structural strength of a building. Structural plywood class 1 (specialty, class 1) is a plywood used for parts required for the load-bearing structure of buildings such as 2x4 houses (two-by-four). is there. The dimensions are 7.5 to 24 mm in thickness, width = 910 · 1220 mm, etc. (width is arbitrary), length = 1820/2430/2730 mm, etc. (length is arbitrary). The thickness of the veneer is specified, thereby guaranteeing the strength of the plywood. Further, the structural plywood class 2 (special class 1) of the structural plywood is used in the same manner as the first class, but is mainly composed of softwood plywood. The dimensions are thickness = 5.5-24 mm, width = 910/1220 mm, etc. (width is arbitrary), length = 1800/1820 / 2430-2730 mm, etc. (length is arbitrary). It is better to use “special” for the exterior.

断熱層１３は、例えば、ウレタンフォーム、押出ポリスチレン、フェノールフォーム、等の合成樹脂発泡体よりなるもの、あるいはこれら合成樹脂発泡体をシート材、板材（石膏ボード、セメント板、炭酸カルシウム板、珪酸カルシウム板、木片セメント板、炭酸マグネシウム板、シージングボード、シージングインシュレーションボード、合板、等）でサンドイッチした複合板である。 The heat insulating layer 13 is made of, for example, a synthetic resin foam such as urethane foam, extruded polystyrene, phenol foam, or the like, or a sheet material, a plate material (gypsum board, cement board, calcium carbonate board, calcium silicate). Plate, wood chip cement plate, magnesium carbonate plate, sizing board, sizing insulation board, plywood, etc.).

図２５、図２６は排湿層形成部材６を軒天よりも内部まで形成し、湿気を軒天井、あるいは小屋裏の空間（小屋裏換気口）等の排気口から外気へ排出するように形成した構造である。 25 and 26, the exhaust layer forming member 6 is formed from the top of the eave to the inside, and the moisture is formed to be discharged to the outside air from an exhaust port such as a roof of the eave or a space in the back of the hut (the back ventilation port). This is the structure.

勿論、図２０〜図２３の下地αを、図１、図８〜図１８、図２５、図２６の壁構造（下地α以外の構造）と組み合わせて形成することができるものである。 Of course, the base α in FIGS. 20 to 23 can be formed in combination with the wall structures (structures other than the base α) in FIGS. 1, 8 to 18, 25 and 26.

本発明に係る壁構造によれば、外壁材Ａの裏面に通気層（排湿層）を形成した壁構造では、外壁材Ａとして断熱性の有る部材を形成しても外壁材Ａが断熱材として認められなかったが、通気層を排湿層γとすることで、通気層の本来の意義である内部結露防止の効果を生かし、さらに、断熱性のある外壁材Ａ断熱効果を生むことで、外壁材裏面および壁内の温度を高く保つことが可能となり、省エネルギーと壁内結露の防止効果を高めることができる工法となる。これは、今までの通気工法にように、外壁材の裏面と下地間の通気路を外気が移動することにより結露を防止する構造とは異なり、湿気だけを外部に排出できる構造であるために、断熱性を有する外壁材の性能を有効に活用できるものである。 According to the wall structure according to the present invention, in the wall structure in which a ventilation layer (humidification layer) is formed on the back surface of the outer wall material A, the outer wall material A is still a heat insulating material even if a member having heat insulating properties is formed as the outer wall material A. However, by making the ventilation layer a moisture exhaust layer γ, the effect of preventing internal dew condensation, which is the original significance of the ventilation layer, is utilized, and further, the outer wall material A having a heat insulation effect is produced. In addition, it becomes possible to keep the outer wall material back surface and the temperature in the wall high, and this is a construction method capable of enhancing the energy saving and the effect of preventing condensation in the wall. This is because, unlike the conventional ventilation method, unlike the structure that prevents condensation by moving outside air through the ventilation path between the back surface of the outer wall material and the base, only moisture can be discharged to the outside. The performance of the outer wall material having heat insulation can be effectively utilized.

本発明に係る壁構造の代表的一例を示す説明図である。It is explanatory drawing which shows a typical example of the wall structure which concerns on this invention. 本発明に係る壁構造の代表的一例を示す説明図である。It is explanatory drawing which shows a typical example of the wall structure which concerns on this invention. 本発明に係る壁構造の代表的一例を示す説明図である。It is explanatory drawing which shows a typical example of the wall structure which concerns on this invention. 本発明に係る壁構造の代表的一例を示す説明図である。It is explanatory drawing which shows a typical example of the wall structure which concerns on this invention. 本発明に係る壁構造に使用する外壁材の代表的一例を示す説明図である。It is explanatory drawing which shows a typical example of the outer wall material used for the wall structure which concerns on this invention. 本発明に係る壁構造に使用する外壁材の代表的一例を示す説明図である。It is explanatory drawing which shows a typical example of the outer wall material used for the wall structure which concerns on this invention. 本発明に係る壁構造に使用する外壁材の代表的一例を示す説明図である。It is explanatory drawing which shows a typical example of the outer wall material used for the wall structure which concerns on this invention. 本発明に係る壁構造のその他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the wall structure which concerns on this invention. 本発明に係る壁構造のその他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the wall structure which concerns on this invention. 本発明に係る壁構造のその他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the wall structure which concerns on this invention. 本発明に係る壁構造のその他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the wall structure which concerns on this invention. 本発明に係る壁構造のその他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the wall structure which concerns on this invention. 本発明に係る壁構造のその他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the wall structure which concerns on this invention. 本発明に係る壁構造のその他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the wall structure which concerns on this invention. 本発明に係る壁構造のその他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the wall structure which concerns on this invention. 本発明に係る壁構造のその他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the wall structure which concerns on this invention. 本発明に係る壁構造のその他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the wall structure which concerns on this invention. 本発明に係る壁構造のその他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the wall structure which concerns on this invention. 本発明に係る壁構造のその他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the wall structure which concerns on this invention. 本発明に係る壁構造のその他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the wall structure which concerns on this invention. 本発明に係る壁構造のその他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the wall structure which concerns on this invention. 本発明に係る壁構造のその他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the wall structure which concerns on this invention. 本発明に係る壁構造のその他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the wall structure which concerns on this invention. 本発明に係る壁構造のその他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the wall structure which concerns on this invention. 本発明に係る壁構造のその他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the wall structure which concerns on this invention. 本発明に係る壁構造のその他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the wall structure which concerns on this invention.

Explanation of symbols

α 下地
β 固定具
γ 排湿層
Ａ外壁材
１内装材
２防湿層
３躯体
４断熱材
５防風透湿層
６排湿層形成部材
７上開口
７ａ上透湿部
８下開口
８ａ下透湿部
９止縁
１０水切り
１１防水層
１２構造用面材
１３外張断熱層
α Base β Fixture γ Dehumidifying layer A Outer wall material 1 Interior material 2 Moisture proof layer 3 Housing 4 Heat insulating material 5 Windproof moisture permeable layer 6 Moisture permeable layer forming member 7 Upper opening 7a Upper moisture permeable part 8 Lower opening 8a Lower moisture permeable part 9 Stop edge 10 Drainer 11 Waterproof layer 12 Structural face material 13 Outer insulation layer

Claims

A wall characterized in that the upper opening and the lower opening, or the upper opening and the lower opening formed in the lower part and the upper part of the moisture removal layer between the base and the outer wall material are closed with a moisture-permeable member. Construction.