JP4766917B2 - Ventilation structure in the wall - Google Patents
Ventilation structure in the wall Download PDFInfo
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- JP4766917B2 JP4766917B2 JP2005139598A JP2005139598A JP4766917B2 JP 4766917 B2 JP4766917 B2 JP 4766917B2 JP 2005139598 A JP2005139598 A JP 2005139598A JP 2005139598 A JP2005139598 A JP 2005139598A JP 4766917 B2 JP4766917 B2 JP 4766917B2
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Description
本発明は、外壁の内側に通気層が形成される壁内通気構造に関する。 The present invention relates to an in-wall ventilation structure in which a ventilation layer is formed inside an outer wall.
従来、隣家の火災時に防水シートと外装パネルとの間に形成した通気層から炎が回り込むのを防ぐために、外壁下地にて張設された防水シートの前面に縦胴縁を固定し、この縦胴縁の前面に外装パネルを固定してなる外壁にて前記外装パネルと防水シートとの間に形成された壁内通気層内に、上下貫通孔を有する通気発泡材を設けた壁内通気構造が知られている（例えば、特許文献１参照）。 Conventionally, in order to prevent a flame from flowing around from the ventilation layer formed between the waterproof sheet and the exterior panel in the case of a fire in a neighboring house, a vertical trunk edge is fixed to the front surface of the waterproof sheet stretched on the outer wall base, and this vertical An in-wall ventilation structure in which a ventilation foam material having upper and lower through holes is provided in an in-wall ventilation layer formed between the exterior panel and the waterproof sheet on the outer wall formed by fixing the exterior panel to the front surface of the trunk edge Is known (see, for example, Patent Document 1).
また、通気層に侵入した白蟻が室内側に至らないように、通気層の室内面側に縦胴縁を介設して外装材内側に形成した通気層の室内面に透湿防水シートを張設することによって室内外を区分した木造建物において，上記透湿防水シートを，０．５〜１０μｍ程度の径の連続性繊維を加熱結合して形成した連続性極細高密度ポリエチレン繊維による不織布シートによる透湿防水シートを木造建物の土台から軒裏及び屋根下地まで全面に張設した木造建物における通気壁防蟻装置が知られている（例えば、特許文献２参照）。 Also, in order to prevent white ants that have entered the ventilation layer from reaching the indoor side, a moisture permeable waterproof sheet is stretched on the indoor surface of the ventilation layer that is formed on the inside of the exterior material with a vertical trunk edge on the indoor surface side of the ventilation layer. In a wooden building where indoors and outdoors are separated by installation, the moisture permeable waterproof sheet is made of a non-woven sheet made of continuous ultrafine high density polyethylene fibers formed by thermally bonding continuous fibers having a diameter of about 0.5 to 10 μm. There is known a vent wall barrier device in a wooden building in which a moisture permeable waterproof sheet is stretched over the entire surface from the base of the wooden building to the back of the eave and the roof base (for example, see Patent Document 2).
しかし、特許文献１に記載された壁内通気構造においては、火災時に通気層から炎が回り込むのを防ぐことができるものの、貫通孔を有する通気発泡材では通気層への白蟻の侵入を防ぐことはできない。
また、特許文献２に記載された通気壁防蟻装置においては、白蟻が室内側に侵入するのを防ぐことができるものの、基礎に沿って上ってきた白蟻が通気層に侵入するのを防ぐことはできない。
However, in the in-wall ventilation structure described in Patent Document 1, it is possible to prevent the flame from flowing around from the ventilation layer in the event of a fire, but in the case of the ventilation foam material having the through hole, the entry of white ants into the ventilation layer is prevented. I can't.
Moreover, in the ventilation wall ant protection apparatus described in patent document 2, although a white ant can prevent entering into a room inner side, the white ant which came up along the foundation is prevented from entering a ventilation layer. It is not possible.
本発明は、従来の技術が有するこのような問題点に鑑みてなされたものであり、その目的とするところは、基礎に沿って上ってきた白蟻が通気層の下端から侵入するのを防ぐと共に、隣家の火災時などに通気層の下端から炎が入り込むのを防ぐ壁内通気構造を提供しようとするものである。 The present invention has been made in view of such problems of the prior art, and its purpose is to prevent white ants that have risen along the foundation from entering from the lower end of the ventilation layer. At the same time, it is intended to provide an in-wall ventilation structure that prevents a flame from entering from the lower end of the ventilation layer in the event of a fire in a neighboring house.
上記課題を解決すべく本発明では、柱に直接又は下地部材（合板）を介して防水シートを取り付け、この防水シートの外側に縦胴縁を取り付け、更にこの縦胴縁の外側に外壁材を取り付けることで、前記防水シートと外壁材との間に通気層を形成した壁内通気構造において、不燃性且つ防蟻性のグラスウール部材を前記通気層の下端部で前記縦胴縁の間又は前記通気層の下端部で縦胴縁よりも下方に嵌め込んで固定し、前記グラスウール部材は、直方体に形成したグラスウールの表面で防水シートと対向する一面に、長方形のポリエステルスパンボンド不織布を接着したものである。 In order to solve the above problems, in the present invention, a waterproof sheet is attached to a pillar directly or via a base member (plywood), a vertical body edge is attached to the outside of the waterproof sheet, and an outer wall material is attached to the outside of the vertical body edge. By attaching, in the in-wall ventilation structure in which a ventilation layer is formed between the waterproof sheet and the outer wall material, a nonflammable and ant-proof glass wool member is placed between the vertical trunk edges at the lower end of the ventilation layer or the The glass wool member has a rectangular polyester spunbonded non-woven fabric bonded to the surface facing the waterproof sheet on the surface of the glass wool formed in a rectangular parallelepiped. It is.
以上説明したように本発明によれば、グラスウール部材は防蟻性であるため、白蟻の食害を受けることなく、白蟻が通気層に侵入するのを防ぐことができる。また、グラスウール部材は不燃性であるため、隣家の火災時などに通気層へ炎が入り込むのを防ぐことができる。更に、グラスウール部材は通気性であるため、通気層の湿気排出機能・通気機能を損なうことがない。 As described above, according to the present invention, since the glass wool member is ant-proof, the white ants can be prevented from entering the ventilation layer without being damaged by the white ants. Further, since the glass wool member is nonflammable, it is possible to prevent a flame from entering the ventilation layer in the event of a fire in a neighboring house. Furthermore, since the glass wool member is air permeable, the moisture exhaust function and the air permeable function of the air permeable layer are not impaired.
以下に本発明の実施の形態を添付図面に基づいて説明する。ここで、図１は本発明に係る壁内通気構造の縦断面図、図２は同じく横断面図、図３は同じく外壁材を除いた場合の正面図、図４はグラスウール部材の斜視図、図５は別実施例における壁内通気構造の縦断面図、図６は別実施例の外壁材を除いた場合の正面図で（ａ）が室内側、（ｂ）が外気側の図である。 Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, FIG. 1 is a longitudinal sectional view of the in-wall ventilation structure according to the present invention, FIG. 2 is also a transverse sectional view, FIG. 3 is a front view when the outer wall material is also removed, FIG. 4 is a perspective view of a glass wool member, FIG. 5 is a longitudinal sectional view of a ventilation structure in a wall according to another embodiment, and FIG. 6 is a front view when the outer wall material is removed according to another embodiment. FIG. .
本発明に係る壁内通気構造は、図１及び図２に示すように、基礎１の上に土台２を介して立設した柱３と、柱３の外気側の面に固定した下地部材としての合板４と、この合板４の外側面に止着される防水シート１２と、合板４に縦胴縁５を介して固定した外壁材６と、合板４の外側面の防水シート１２と外壁材６との間に形成した通気層７と、通気層７の下端部に固定したグラスウール部材８を備えている。 As shown in FIG. 1 and FIG. 2, the in-wall ventilation structure according to the present invention is a column 3 that is erected on a foundation 1 via a base 2 and a base member that is fixed to the surface of the column 3 on the outside air side. Plywood 4, a waterproof sheet 12 fixed to the outer surface of the plywood 4, an outer wall member 6 fixed to the plywood 4 via a vertical trunk edge 5, and a waterproof sheet 12 and an outer wall material on the outer surface of the plywood 4 6 and a glass wool member 8 fixed to the lower end portion of the air-permeable layer 7.
縦胴縁５は、図３に示すように、合板４の外側面の防水シート１２と外壁材６に挟まれて所定の間隔で設置されている。グラスウール部材８は、縦胴縁５の間に嵌め込んだ状態で、且つ防水シート１２と外壁材６に密接状態で固定され、外気側と通気層７を遮断している。グラスウール部材８は、不燃性で且つ白蟻に対して防蟻性という性質を有する。 As shown in FIG. 3, the vertical body edge 5 is placed at a predetermined interval between the waterproof sheet 12 and the outer wall material 6 on the outer surface of the plywood 4. The glass wool member 8 is fixed between the waterproof sheet 12 and the outer wall member 6 in a state where the glass wool member 8 is fitted between the vertical body edges 5 and blocks the outside air side and the ventilation layer 7. The glass wool member 8 is nonflammable and has a property of being ant-proof against white ants.
グラスウール部材８は、図４に示すように、直方体に形成したグラスウール１０の表面（防水シート１２と対向する一面）に、長方形のポリエステルスパンボンド不織布１１を接着したものである。ポリエステルスパンボンド不織布１１は、グラスウール部材８を合板４に固定するための部材である。 As shown in FIG. 4, the glass wool member 8 is obtained by bonding a rectangular polyester spunbond nonwoven fabric 11 to the surface of the glass wool 10 formed in a rectangular parallelepiped (one surface facing the waterproof sheet 12). The polyester spunbond nonwoven fabric 11 is a member for fixing the glass wool member 8 to the plywood 4.
例えば、グラスウール部材８は、密度３２ｋｇ／ｍ３のグラスウール材を、幅Ｗが縦胴縁５の施工間隔に２ｍｍを加算した値、高さＨが３０ｍｍ、奥行きＤが２５ｍｍ（縦胴縁５の厚みが１８ｍｍの場合）のサイズに形成したグラスウール１０の表面（防水シート１２と対向する一面）に、縦の長さＡが７０ｍｍ、横の長さＢがグラスウール１０の幅Ｗと同様に縦胴縁５の施工間隔に２ｍｍを加算した値のポリエステルスパンボンド不織布１１を接着して構成することができる。 For example, the glass wool member 8 is made of a glass wool material having a density of 32 kg / m 3 , the width W is a value obtained by adding 2 mm to the construction interval of the vertical trunk edge 5, the height H is 30 mm, and the depth D is 25 mm (of the vertical trunk edge 5 The length of the glass wool 10 formed in the size of 18 mm in thickness (one surface facing the waterproof sheet 12) is 70 mm long and the horizontal length B is the same as the width W of the glass wool 10. A polyester spunbond nonwoven fabric 11 having a value obtained by adding 2 mm to the construction interval of the edge 5 can be adhered and configured.
上記のグラスウール部材８は、縦胴縁５の厚みが１８ｍｍの場合には、施工前に厚み２５ｍｍのグラスウール１０を施工後には縦胴縁５の厚さ（１８ｍｍ）まで圧縮することにより密度を上げているので、アリの侵入を確実に防ぐことができる。 When the thickness of the vertical body edge 5 is 18 mm, the glass wool member 8 is increased in density by compressing the glass wool 10 having a thickness of 25 mm before construction to the thickness of the vertical body edge 5 (18 mm) after construction. Therefore, it is possible to reliably prevent ants from entering.
また、所定サイズのグラスウール１０に加工されるグラスウール材としては、３２ｋｇ／ｍ３以外でも、通気層７の湿気排出機能や通気機能を損なわなければ、１６ｋｇ／ｍ３〜９６ｋｇ／ｍ３を用いることができる。更に、グラスウール部材８のサイズは、状況に応じて変更することができる。 As the glass wool material to be processed into the glass wool 10 of a predetermined size, be other than 32 kg / m 3, unless impair the moisture discharge function and the ventilation function of the ventilation layer 7, the use of 16kg / m 3 ~96kg / m 3 Can do. Furthermore, the size of the glass wool member 8 can be changed according to the situation.
グラスウール部材８を合板４に固定するための不織布は、ポリエステルスパンボンド不織布１１以外のものでもよい。
また、ポリエステルスパンボンド不織布１１を合板４に固定しなくても、グラスウール部材８を縦胴縁５の間に嵌め込むと共に、合板４と外壁材６によって圧縮するようにすれば所望の姿勢で固定することができる。従って、グラスウール部材８は、ポリエステルスパンボンド不織布１１などの不織布を用いることなく、グラスウール１０のみで構成することもできる。
The nonwoven fabric for fixing the glass wool member 8 to the plywood 4 may be other than the polyester spunbond nonwoven fabric 11.
Even if the polyester spunbond nonwoven fabric 11 is not fixed to the plywood 4, the glass wool member 8 is fitted between the longitudinal body edges 5 and is compressed by the plywood 4 and the outer wall material 6 to be fixed in a desired posture. can do. Therefore, the glass wool member 8 can be composed of only the glass wool 10 without using a nonwoven fabric such as the polyester spunbond nonwoven fabric 11.
グラスウール部材８の施工は、図１に示すように、合板を使う場合の接合に関する制限はないが、合板が無い場合は土台に押し当てられる高さとする。施工方法としては、まず図３に示すように、グラスウール部材８を縦胴縁５と縦胴縁５の間に嵌め込むように固定する方法が考えられる。 As shown in FIG. 1, the construction of the glass wool member 8 is not limited in terms of joining when a plywood is used, but when there is no plywood, the glass wool member 8 has a height that is pressed against the foundation. As a construction method, first, as shown in FIG. 3, a method of fixing the glass wool member 8 so as to be fitted between the vertical trunk edge 5 and the vertical trunk edge 5 can be considered.
図５は、図１の別実施例に係る壁内通気構造の縦断面図を示す図である。図１との違いは、グラスウール部材８の取付けにおいて、図１では合板４の上に防水シート１２を貼って、その上にグラスウール部材８を取り付けているが、図５においては合板４を使わず、防水シート１２を土台２や柱３に直接取り付け、その上にグラスウール部材８を取り付けている点である。前記防水シート１２の反対側の面は図１と同様に縦胴縁５に取り付けられていて、グラスウール部材８も防水シート１２に直接取り付けられていて、防水シート１２と外壁材６との間の通気層と外壁の外気側とを遮断している。グラスウール部材８の固定は、タッカ−を用いてポリエステルスパンボンド不織布１１を、あらかじめ防水シート１２を貼ってある土台２上に固定することによって行われる。タッカ−で固定することができない箇所については、接着テープなどで固定することもできる。 FIG. 5 is a view showing a longitudinal sectional view of the in-wall ventilation structure according to another embodiment of FIG. The difference from FIG. 1 is that the glass wool member 8 is attached with a waterproof sheet 12 on the plywood 4 in FIG. 1 and the glass wool member 8 is attached thereon, but in FIG. The waterproof sheet 12 is directly attached to the base 2 or the pillar 3, and the glass wool member 8 is attached thereon. The opposite surface of the waterproof sheet 12 is attached to the vertical trunk edge 5 as in FIG. 1, and the glass wool member 8 is also directly attached to the waterproof sheet 12. The ventilation layer and the outside air side of the outer wall are blocked. The glass wool member 8 is fixed by fixing the polyester spunbond nonwoven fabric 11 on the base 2 on which the waterproof sheet 12 has been pasted in advance using a tacker. A portion that cannot be fixed with a tacker can be fixed with an adhesive tape or the like.
図６（ａ）と（ｂ）は、図３の別実施例である。図３との違いは、図３ではグラスウール部材８を縦胴縁５と縦胴縁５の間に嵌め込むように固定しているのに対し、図６（ａ）（ｂ）では縦胴縁５の下端より低い位置にて、単体であるいは複数のグラスウール部材８を横方向に連接させている。この場合において、縦胴縁５の下端と向き合うグラスウール部材８の角材形状をしたグラスウール１０の上向き面とは接触していても良いし、距離を置いて配置しても良いが、前記グラスウール１０の上向き面の高さは外壁の下端縁よりも高い構造とする。 6 (a) and 6 (b) show another embodiment of FIG. 3 is different from FIG. 3 in that the glass wool member 8 is fixed so as to be fitted between the vertical body edge 5 and the vertical body edge 5 in FIG. A single or a plurality of glass wool members 8 are connected in the lateral direction at a position lower than the lower end of 5. In this case, the glass wool 10 having a square shape of the glass wool member 8 facing the lower end of the vertical body edge 5 may be in contact with the upward surface of the glass wool 10 or may be arranged at a distance. The height of the upward surface is higher than the lower edge of the outer wall.
この構造により、防水シート１２と外壁材６との間の通気層７を外壁の外気側から遮断している。この場合のグラスウール部材８の固定は、タッカ−を用いてポリエステルスパンボンド不織布１１を防水シート１２の上から土台に固定することによって行われる。タッカ−で固定することができない箇所については、接着テープなどで固定することもできる。 With this structure, the ventilation layer 7 between the waterproof sheet 12 and the outer wall material 6 is blocked from the outside air side of the outer wall. In this case, the glass wool member 8 is fixed by fixing the polyester spunbond nonwoven fabric 11 from the top of the waterproof sheet 12 to the base using a tacker. A portion that cannot be fixed with a tacker can be fixed with an adhesive tape or the like.
以上のように構成した本発明に係る壁内通気構造の作用について説明する。通気層７の下端へ白蟻が侵入しようとしても、白蟻の食害を受けない防蟻性のグラスウール部材８を通気層７の下端部に設けて、外気側と通気層７を遮断しているので、基礎１に沿って上ってきた白蟻はグラスウール部材８を通過することができず、白蟻が通気層７に侵入するのを防ぐことができる。 The operation of the in-wall ventilation structure according to the present invention configured as described above will be described. Even if white ants try to invade the lower end of the ventilation layer 7, the ant-proof glass wool member 8 that is not affected by white ants is provided at the lower end of the ventilation layer 7 to block the outside air side and the ventilation layer 7, The white ants that have risen along the foundation 1 cannot pass through the glass wool member 8 and can prevent the white ants from entering the ventilation layer 7.
また、隣家の火災などにより通気層７の下端から炎が入り込むような場合でも、不燃性のグラスウール部材８を通気層７の下端部に設けて、外気側と通気層７を遮断しているので、炎が通気層７内に回り込むのを防ぐことができる。 Further, even when a flame enters from the lower end of the ventilation layer 7 due to a fire in a neighboring house, the non-flammable glass wool member 8 is provided at the lower end portion of the ventilation layer 7 to block the outside air side and the ventilation layer 7 from each other. , It is possible to prevent the flame from entering the ventilation layer 7.
更に、グラスウール部材８は、グラスウール１０の通気性により、通気層７の湿気排出機能・通気機能を損なうことなく、通気層７内の湿気を外気側に排気することもできるし、外気を通気層７内に取り込むこともできる。 Further, the glass wool member 8 can exhaust the moisture in the ventilation layer 7 to the outside air without impairing the moisture discharge function and ventilation function of the ventilation layer 7 due to the breathability of the glass wool 10, and the outside air can be exhausted to the ventilation layer. 7 can also be imported.
本発明は、白蟻の食害を受けることなく、白蟻が通気層に侵入するのを防ぐことができ、また隣家の火災時などに通気層へ炎が入り込むのを防ぐことができ、更に通気層の湿気排出機能・通気機能を損なうことのない壁内通気構造を提供することができる。 The present invention can prevent white ants from invading into the ventilation layer without being damaged by white ants, and can prevent the entry of flame into the ventilation layer in the event of a fire in a neighboring house. It is possible to provide an in-wall ventilation structure that does not impair the moisture discharge function and ventilation function.
１…基礎、２…土台、３…柱、４…合板、５…縦胴縁、６…外壁材、７…通気層、８…グラスウール部材、１０…グラスウール、１１…ポリエステルスパンボンド不織布、１２…防水シート。
DESCRIPTION OF SYMBOLS 1 ... Foundation, 2 ... Base, 3 ... Pillar, 4 ... Plywood, 5 ... Vertical body edge, 6 ... Outer wall material, 7 ... Breathable layer, 8 ... Glass wool member, 10 ... Glass wool, 11 ... Polyester spunbond nonwoven fabric, 12 ... Tarpaulin.
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| JP2005139598A JP4766917B2 (en) | 2005-05-12 | 2005-05-12 | Ventilation structure in the wall |
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| JP2005139598A JP4766917B2 (en) | 2005-05-12 | 2005-05-12 | Ventilation structure in the wall |
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| JP2006316491A JP2006316491A (en) | 2006-11-24 |
| JP4766917B2 true JP4766917B2 (en) | 2011-09-07 |
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| JPH1113158A (en) * | 1997-06-26 | 1999-01-19 | Daiken Trade & Ind Co Ltd | Corbel for ventilating and exterior-wall ventilating structure using the same |
| JP2000355986A (en) * | 1998-09-29 | 2000-12-26 | Toshiyuki Kosaka | Termite control structure and adhesive for preventing boring by termite |
| JP2001204364A (en) * | 2000-01-28 | 2001-07-31 | Shinto Fine Co Ltd | Material for inhibiting insect pest from invasion |
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