JP7349850B2 - Construction method of waterproof structure and waterproof components - Google Patents

Construction method of waterproof structure and waterproof components Download PDF

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JP7349850B2
JP7349850B2 JP2019157497A JP2019157497A JP7349850B2 JP 7349850 B2 JP7349850 B2 JP 7349850B2 JP 2019157497 A JP2019157497 A JP 2019157497A JP 2019157497 A JP2019157497 A JP 2019157497A JP 7349850 B2 JP7349850 B2 JP 7349850B2
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waterproof member
waterproof
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JP2021036091A (en
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敦実 星野
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Fukuvi Chemical Industry Co Ltd
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Description

本発明は、防水構造の施工方法および防水部材に関する。 The present invention relates to a construction method for a waterproof structure and a waterproof member.

従来、建物の外壁において、サッシ枠周辺や、配管に貫通された建物外壁の貫通孔からの浸水を抑制するため、隙間を塞ぎ防水する部材が知られている（例えば、特許文献１，２参照）。なお、本実施形態において「防水」とは、建物の構造への水の流入、浸透を食い止めることを指す。上記部材の形成材料としては、ポリエチレンや熱可塑性エラストマー等の樹脂材料が知られている。 Conventionally, there have been known members that close gaps and waterproof the exterior walls of buildings in order to prevent water from seeping in around the sash frame or from through-holes in the building exterior walls penetrated by piping (for example, see Patent Documents 1 and 2). ). Note that in this embodiment, "waterproofing" refers to preventing water from flowing into or penetrating the structure of a building. Resin materials such as polyethylene and thermoplastic elastomer are known as materials for forming the above-mentioned members.

特許第４８７１９５０号公報Patent No. 4871950 特許第５５２４２７５号公報Patent No. 5524275

しかし、建物の外壁にサッシ枠等を備え付けた後に、さらに外壁にモルタルを塗工する場合、上記部材に重ねてモルタルを塗工すると、上記部材からモルタル層が剥がれ落ちやすいことが知られている。そのため、外壁にモルタルを塗工する場合には、上記部材の使用が制限されていた。 However, when applying mortar to the outer wall of a building after installing a sash frame, etc., it is known that if mortar is applied over the above-mentioned members, the mortar layer tends to peel off from the above-mentioned members. . Therefore, when applying mortar to an outer wall, the use of the above member has been limited.

一方、上記部材を用いずにサッシ枠周辺や、配管に貫通された建物外壁の貫通孔の防水処理を行う場合、防水する箇所に防水テープを貼る工法が考えられる。しかし、この場合、防水テープを貼る作業者の技量により防水性能に差が生じることがあった。 On the other hand, when waterproofing the area around the sash frame or the through-hole of the building's outer wall penetrated by piping without using the above-mentioned member, a method of applying waterproof tape to the area to be waterproofed may be considered. However, in this case, the waterproof performance may vary depending on the skill of the worker applying the waterproof tape.

また、建築現場においては、上記部材でサッシ枠周辺等の防水を行った後、さらに外壁にモルタルを塗ってモルタル層を形成し、モルタル外壁とすることがある。その際、モルタルの下地として、ラス板と呼ばれる板材がモルタルの塗工位置に予め固定される。一般に、ラス板の固定は、タッカーを用いてステープルを打ち付けることにより行われる。 Further, at a construction site, after waterproofing the periphery of the sash frame etc. with the above-mentioned member, mortar may be further applied to the outer wall to form a mortar layer to form a mortar outer wall. At that time, a board material called a lath board is fixed in advance at the mortar coating position as a base for the mortar. Generally, the lath board is fixed by driving staples using a tacker.

しかし、上記部材で防水を行っている場合、ステープルが上記部材を貫通することになる。そのため、ステープルにより開けられた孔から水が浸透するおそれがある。 However, if the above-mentioned member is waterproof, the staples will penetrate the above-mentioned member. Therefore, there is a possibility that water may penetrate through the holes made by the staples.

本発明はこのような事情に鑑みてなされたものであって、建物外壁において容易に防水処理を行うとともに、モルタル塗工を可能とする防水構造の施工方法を提供することを目的とする。また、建物外壁において容易に防水処理を行うとともに、モルタル塗工を可能とする防水部材を提供することを併せて目的とする。 The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a method for constructing a waterproof structure that allows for easy waterproofing of the outer wall of a building and also enables mortar coating. Another object of the present invention is to provide a waterproofing member that can easily perform waterproofing treatment on the outer wall of a building and can be coated with mortar.

上記の課題を解決するため、本発明は、以下の態様を包含する。 In order to solve the above problems, the present invention includes the following aspects.

［１］建物の外壁に形成された取り合い部を、防水部材を用いて防水する防水構造の施工方法であって、前記防水部材は、前記外壁の外壁面に沿って配置される第１シート部と、前記第１シート部に連続して形成される第２シート部と、を有する防水部材本体を含み、前記防水部材本体の前記第１シート部の少なくとも一部に、モルタル密着層と粘着剤層とが積層した粘着テープを貼合し、前記防水部材本体と前記粘着剤層と前記モルタル密着層とがこの順に積層した前記防水部材を得る工程と、前記第１シート部を前記外壁面に沿わせ、前記防水部材を前記取り合い部に配置する工程と、を有する防水構造の施工方法。 [1] A construction method for a waterproof structure in which a joint formed on an outer wall of a building is waterproofed using a waterproof member, wherein the waterproof member includes a first sheet portion disposed along the outer wall surface of the outer wall. and a second sheet part formed continuously to the first sheet part, the waterproof member main body having a mortar adhesion layer and an adhesive on at least a part of the first sheet part of the waterproof member main body. a step of laminating an adhesive tape in which the layers are laminated to obtain the waterproof member in which the waterproof member main body, the adhesive layer, and the mortar adhesion layer are laminated in this order; and attaching the first sheet portion to the outer wall surface. A method for constructing a waterproof structure, the method comprising: placing the waterproof member along the joining part.

［２］第１の防水部材本体と、第２の防水部材本体とを含む複数の前記防水部材本体を用い、前記防水部材を得る工程では、前記第１の防水部材本体の前記第１シート部と、前記第２の防水部材本体の前記第１シート部とにまたがって、前記粘着テープを貼合し、前記粘着テープを用いて前記第１の防水部材本体と、前記第２の防水部材本体とを連結する［１］に記載の防水構造の施工方法。 [ 2 ] In the step of obtaining the waterproof member using a plurality of waterproof member bodies including a first waterproof member main body and a second waterproof member main body, the first sheet portion of the first waterproof member main body is and the first sheet portion of the second waterproof member main body, the adhesive tape is bonded to the first waterproof member main body and the second waterproof member main body using the adhesive tape. The construction method of the waterproof structure according to [1] , which connects the waterproof structure.

［３］防水部材を用い、建物の外壁に形成された取り合い部を防水する防水部材であって、防水部材本体と、モルタル密着層と、前記防水部材本体と前記モルタル密着層との間に設けられた樹脂層とを有し、前記防水部材本体は、前記外壁の外壁面に沿って配置される第１シート部と、前記第１シート部に連続して形成される第２シート部と、を有し、前記モルタル密着層は、不織布を形成材料とし、前記樹脂層および前記モルタル密着層は、前記第１シート部の少なくとも一部に積層して設けられており、前記第１シート部は、第１貫通孔を有し、前記第２シート部は、前記第１貫通孔に沿って設けられ、前記第１貫通孔よりも小径の第２貫通孔を有する防水部材。 [ 3 ] A waterproofing member that uses a waterproofing member to waterproof a joint formed on an outer wall of a building, the waterproofing member being provided between a waterproofing member main body, a mortar adhesion layer, and the waterproofing member main body and the mortar adhesion layer. The waterproof member main body has a first sheet part disposed along the outer wall surface of the outer wall, a second sheet part formed continuously with the first sheet part, The mortar adhesion layer has a nonwoven fabric as a forming material, the resin layer and the mortar adhesion layer are laminated on at least a part of the first sheet part , and the first sheet part has , a waterproof member having a first through hole, the second sheet portion having a second through hole provided along the first through hole and having a smaller diameter than the first through hole.

［４］前記樹脂層は、粘着剤を形成材料とする［３］に記載の防水部材。 [ 4 ] The waterproof member according to [3] , wherein the resin layer uses an adhesive as a forming material.

本発明によれば、建物外壁において容易に防水処理を行うとともに、モルタル塗工を可能とする防水構造の施工方法を提供することができる。また、建物外壁において容易に防水処理を行うとともに、モルタル塗工を可能とする防水部材を提供することができる。 According to the present invention, it is possible to provide a method for constructing a waterproof structure that allows for easy waterproofing on the outer wall of a building and also enables mortar coating. Further, it is possible to provide a waterproof member that can easily perform waterproofing treatment on the outer wall of a building and can be coated with mortar.

図１は、第１実施形態の防水部材１を示す概略斜視図である。FIG. 1 is a schematic perspective view showing a waterproof member 1 of the first embodiment. 図２は、第１実施形態の防水部材１を示す断面図である。FIG. 2 is a sectional view showing the waterproof member 1 of the first embodiment. 図３は、第１実施形態の他の防水部材２を示す概略斜視図である。FIG. 3 is a schematic perspective view showing another waterproof member 2 of the first embodiment. 図４は、第１実施形態の防水構造の施工方法を示す工程図である。FIG. 4 is a process diagram showing the construction method of the waterproof structure of the first embodiment. 図５は、第１実施形態の防水構造の施工方法を示す工程図である。FIG. 5 is a process diagram showing the construction method of the waterproof structure of the first embodiment. 図６は、第１実施形態の防水構造の施工方法を示す工程図である。FIG. 6 is a process diagram showing the construction method of the waterproof structure of the first embodiment. 図７は、第１実施形態の防水構造の施工方法を示す工程図である。FIG. 7 is a process diagram showing the construction method of the waterproof structure of the first embodiment. 図８は、第２実施形態の防水部材３を示す概略斜視図である。FIG. 8 is a schematic perspective view showing the waterproof member 3 of the second embodiment. 図９は、第２実施形態の防水部材３を示す断面図である。FIG. 9 is a sectional view showing the waterproof member 3 of the second embodiment. 図１０は、第２実施形態の防水構造の施工方法を示す工程図である。FIG. 10 is a process diagram showing a method for constructing a waterproof structure according to the second embodiment. 図１１は、第２実施形態の防水構造の施工方法を示す工程図である。FIG. 11 is a process diagram showing a method for constructing a waterproof structure according to the second embodiment. 図１２は、第２実施形態の防水構造の施工方法を示す工程図である。FIG. 12 is a process diagram showing a method for constructing a waterproof structure according to the second embodiment.

［第１実施形態］
以下、図１～図７を参照しながら、本発明の第１実施形態に係る防水構造の施工方法および防水部材について説明する。なお、以下の全ての図面においては、図面を見やすくするため、各構成要素の寸法や比率などは適宜異ならせてある。 [First embodiment]
Hereinafter, a method for constructing a waterproof structure and a waterproof member according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 7. Note that in all the drawings below, the dimensions and ratios of each component are changed as appropriate to make the drawings easier to read.

以下の説明においては、ｘｙｚ直交座標系を設定し、このｘｙｚ直交座標系を参照しつつ各部材の位置関係について説明する。ここでは、水平面内の所定方向をｘ軸方向、水平面内においてｘ軸方向と直交する方向をｙ軸方向、ｘ軸方向及びｙ軸方向のそれぞれと直交する方向（すなわち鉛直方向）をｚ軸方向とする。 In the following description, an xyz orthogonal coordinate system is set, and the positional relationship of each member will be explained with reference to this xyz orthogonal coordinate system. Here, a predetermined direction in the horizontal plane is referred to as the x-axis direction, a direction perpendicular to the x-axis direction in the horizontal plane is referred to as the y-axis direction, and a direction perpendicular to each of the x-axis direction and the y-axis direction (that is, the vertical direction) is referred to as the z-axis direction. shall be.

また、以下の説明において、＋ｚ方向を「上」または「上方」、－ｚ方向を「下」または「下方」と称することがある。 Furthermore, in the following description, the +z direction may be referred to as "up" or "upper", and the -z direction may be referred to as "down" or "downward".

さらに、以下の説明において、「正面視」とは＋ｙ側から－ｙ軸方向に見る視野を指し、「平面視」とは＋ｚ側から－ｚ軸方向に見る視野を指す。 Furthermore, in the following description, "front view" refers to the field of view seen from the +y side in the -y axis direction, and "planar view" refers to the field of view seen from the +z side in the -z axis direction.

本明細書において「取り合い部」とは、建築部材同士が突き合わされた部分を指す。取り合い部のうち、建築部材が構成する３つの面が交わる箇所は「三面交点」と呼ばれる。 In this specification, the term "interlocking portion" refers to a portion where building members are butted against each other. Among the joints, the place where the three faces of the building component intersect is called the "three-face intersection".

また、「建物の外壁に形成された取り合い部」とは、例えば、建物の外壁に形成された開口部と開口部に挿入される窓枠やサッシとの接合部分、外壁を貫通する配管と外壁に設けられた貫通孔との間、壁材と屋根との接合部分、バルコニーと外壁との接合部分、バルコニーの角部などを挙げることができる。また、本発明においては、窓枠やサッシをはめ込むことで取り合い部が形成される上記開口部も、取り合い部に含めるものとする。 In addition, "joint parts formed in the outer wall of a building" include, for example, the joint part between an opening formed in the outer wall of a building and a window frame or sash inserted into the opening, and the joint part between a pipe that penetrates the outer wall and the outer wall. Examples include a through hole provided in a wall, a joint between a wall material and a roof, a joint between a balcony and an outer wall, a corner of a balcony, etc. Further, in the present invention, the above-mentioned opening portion in which a fitting portion is formed by fitting a window frame or a sash is also included in the fitting portion.

「外壁を貫通する配管」とは、例えばエアコン用の配管穴に挿入されたパイプや、ベランダ外壁に設けられたオーバーフロー管を挙げることができる。 "Piping that penetrates the outer wall" includes, for example, a pipe inserted into a piping hole for an air conditioner, and an overflow pipe provided on the outer wall of a balcony.

図１は、本実施形態の防水部材１を示す概略斜視図である。図２は、本実施形態の防水部材１を示す断面図であり、図１における線分ＩＩ-ＩＩにおける矢視断面図である。 FIG. 1 is a schematic perspective view showing a waterproof member 1 of this embodiment. FIG. 2 is a sectional view showing the waterproof member 1 of this embodiment, and is a sectional view taken along line II-II in FIG.

図１，２に示すように、本実施形態の防水部材１は、防水部材本体１０と、モルタル密着層５１と、樹脂層５２とを有する。以下の説明では、モルタル密着層５１と樹脂層５２とをあわせて、機能層５０と称することがある。 As shown in FIGS. 1 and 2, the waterproof member 1 of this embodiment includes a waterproof member main body 10, a mortar adhesion layer 51, and a resin layer 52. In the following description, the mortar adhesion layer 51 and the resin layer 52 may be collectively referred to as a functional layer 50.

防水部材本体１０は、第１シート部１１と、第２シート部１２とを有する。防水部材本体１０は、取り合い部を防水する機能を有する。 The waterproof member main body 10 has a first sheet part 11 and a second sheet part 12. The waterproof member main body 10 has a function of waterproofing the connecting portion.

第１シート部１１は、ｘ軸方向に延在する矩形の平板状の構造物である。第１シート部１１は、建物の外壁の外壁面に沿って配置される。 The first seat portion 11 is a rectangular flat structure extending in the x-axis direction. The first sheet portion 11 is arranged along the outer wall surface of the outer wall of the building.

第２シート部１２は、詳しくは後述するが、建物の外壁に設けられた開口部の上面に沿って配置される。第２シート部１２は、第１シート部１１と連続して形成されている。第２シート部１２は、第１シート部１１の上方の端部において第１シート部１１に交差して設けられ、－ｙ軸方向に延在している。 The second sheet portion 12 will be described in detail later, but is arranged along the top surface of an opening provided in the outer wall of the building. The second sheet portion 12 is formed continuously with the first sheet portion 11. The second seat section 12 is provided at the upper end of the first seat section 11 to intersect with the first seat section 11, and extends in the -y axis direction.

第２シート部１２は、第１シート部１１に接続する平面部１２１と、平面部１２１の－ｙ軸方向の端部において＋ｚ軸方向に立ち上がって設けられた水返し部１２２と、を有する。平面部１２１は、ｘ軸方向に延在する平面視矩形の平板状の構造物である。水返し部１２２は、ｘ軸方向に延在する矩形の平板状の構造物である。 The second sheet portion 12 has a flat portion 121 connected to the first sheet portion 11, and a water return portion 122 provided at an end of the flat portion 121 in the −y axis direction and rising in the +z axis direction. The plane portion 121 is a flat plate-like structure that is rectangular in plan view and extends in the x-axis direction. The water return portion 122 is a rectangular flat structure extending in the x-axis direction.

防水部材本体１０は、例えば、ポリエチレンを用い、押出成形によって製造することができる。 The waterproof member main body 10 can be manufactured by extrusion molding using polyethylene, for example.

モルタル密着層５１は、第１シート部１１の＋ｙ側の面（前面１１ｘ）に配置している。モルタル密着層５１は、モルタル密着層５１と重ねてモルタルを塗工した際に、モルタルが食い込み、硬化後のモルタルの剥落を抑制する機能を有する。モルタル密着層５１の表面は、塗工したモルタルが食い込みやすいよう凹凸を有すると好ましい。 The mortar adhesion layer 51 is arranged on the +y side surface (front surface 11x) of the first sheet portion 11. The mortar adhesion layer 51 has a function of preventing the mortar from biting into the mortar when applied over the mortar adhesion layer 51 and preventing the mortar from peeling off after hardening. The surface of the mortar adhesion layer 51 preferably has irregularities so that the applied mortar can easily bite into it.

モルタル密着層５１は、例えば不織布、紙、織物、編物を形成材料とすることができる。不織布、紙、織物および編物を構成する繊維間の起伏は、上述したモルタル密着層５１の表面の凹凸に該当する。また、不織布、織物および編物に生じる「毛羽立ち」も、上述したモルタル密着層５１の表面の凹凸に該当する。 The mortar adhesion layer 51 can be made of, for example, nonwoven fabric, paper, woven fabric, or knitted fabric. The undulations between the fibers constituting the nonwoven fabric, paper, woven fabric, and knitted fabric correspond to the unevenness on the surface of the mortar adhesion layer 51 described above. Further, "fuzz" occurring in nonwoven fabrics, woven fabrics, and knitted fabrics also corresponds to the surface irregularities of the mortar adhesion layer 51 described above.

不織布の形成材料としては、ポリエチレンテレフタレート（ＰＥＴ）、ポリエチレン（ＰＥ）、ポリプロピレン（ＰＰ）、ポリアミド（ＰＡ）、ポリフェニレンエーテル（ＰＰＥ）などの樹脂材料、およびガラス繊維を挙げることができる。
以下、モルタル密着層５１の形成材料として不織布を用いることとして、本実施形態を説明する。 Examples of materials for forming the nonwoven fabric include resin materials such as polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polyamide (PA), and polyphenylene ether (PPE), and glass fibers.
Hereinafter, this embodiment will be described assuming that a nonwoven fabric is used as the material for forming the mortar adhesion layer 51.

樹脂層５２は、第１シート部１１の前面１１ｘにおいて、第１シート部１１とモルタル密着層５１との間に設けられている。樹脂層５２は、モルタル密着層５１を第１シート部１１に固定する粘着剤層としての機能を有する。 The resin layer 52 is provided between the first sheet part 11 and the mortar adhesion layer 51 on the front surface 11x of the first sheet part 11. The resin layer 52 has a function as an adhesive layer that fixes the mortar adhesion layer 51 to the first sheet part 11.

樹脂層５２の形成材料としては、例えばブチル系粘着剤、シリコン系粘着剤、ゴム系粘着剤、ＥＶＡ（エチレン酢酸ビニル共重合体）やオレフィン系樹脂を用いたホットメルト接着剤を用いることができる。 As the material for forming the resin layer 52, for example, a butyl adhesive, a silicone adhesive, a rubber adhesive, a hot melt adhesive using EVA (ethylene vinyl acetate copolymer), or an olefin resin can be used. .

また、樹脂層５２は、モルタル塗工前にタッカーを用いて建物外壁にラス板を取り付けた際、タッカーで打ち込まれたステープラーによる針孔の周辺を封止する。すなわち、樹脂層５２に打ち込まれたステープラーの針孔の周囲では、樹脂層５２が変形して針孔を塞ぎ、水の浸入を抑制する。このような機能を期待する上で、樹脂層５２の形成材料としては、ブチル系粘着剤が好ましい。 Further, the resin layer 52 seals the periphery of the stapler holes driven by the tacker when the lath board is attached to the outer wall of the building using the tacker before applying mortar. That is, around the needle hole of the stapler driven into the resin layer 52, the resin layer 52 deforms and closes the needle hole, thereby suppressing the infiltration of water. Considering such a function, the material for forming the resin layer 52 is preferably a butyl adhesive.

モルタル密着層５１と樹脂層５２との間には、発明の効果を損なわない範囲で他の層が設けられていてもよい。例えば、モルタル密着層５１と樹脂層５２との間にはポリエチレンフィルムの層が挟持されていてもよい。 Other layers may be provided between the mortar adhesion layer 51 and the resin layer 52 as long as the effects of the invention are not impaired. For example, a polyethylene film layer may be sandwiched between the mortar adhesion layer 51 and the resin layer 52.

モルタル密着層５１と樹脂層５２とは、まず第１シート部１１の前面１１ｘに樹脂層５２を設け、次いで樹脂層５２にモルタル密着層５１を積層して設けることとしてもよいが、モルタル密着層５１と樹脂層５２との積層体を前面１１ｘに設けることとしてもよい。一例として、モルタル密着層５１と樹脂層５２との積層体としては、ブチル系粘着剤を形成材料とする粘着剤層と不織布とが積層した粘着テープを用いることができる。このような積層体としては、例えばスーパーブチルテープＮ（片面タイプ）（フクビ化学株式会社製）を用いることができる。 The mortar adhesion layer 51 and the resin layer 52 may be provided by first providing the resin layer 52 on the front surface 11x of the first sheet portion 11, and then laminating the mortar adhesion layer 51 on the resin layer 52. 51 and the resin layer 52 may be provided on the front surface 11x. As an example, as the laminate of the mortar adhesion layer 51 and the resin layer 52, an adhesive tape in which an adhesive layer made of a butyl adhesive and a nonwoven fabric are laminated can be used. As such a laminate, for example, Super Butyl Tape N (single-sided type) (manufactured by Fukubi Chemical Co., Ltd.) can be used.

なお、粘着テープとして、モルタル密着層５１の形成材料を、上述したモルタル密着層の形成材料に変更した積層体を用いてもよい。
また、粘着テープとして、粘着剤層の形成材料を、樹脂層の形成材料として上述した粘着剤に変更した積層体を用いてもよい。 Note that as the adhesive tape, a laminate in which the material for forming the mortar adhesion layer 51 is changed to the material for forming the mortar adhesion layer described above may be used.
Furthermore, as the adhesive tape, a laminate may be used in which the material for forming the adhesive layer is changed to the adhesive described above as the material for forming the resin layer.

図１では、機能層５０は、第１シート部１１と同じ大きさであることとして示しているが、機能層５０は、第１シート部１１よりも小さく、第１シート部１１の少なくとも一部を覆うこととしてもよい。また、機能層５０は、第１シート部１１よりも大きく、正面視で第１シート部１１からはみ出ていてもよい。 Although the functional layer 50 is shown to have the same size as the first sheet portion 11 in FIG. 1, the functional layer 50 is smaller than the first sheet portion 11 and is at least partially It may also be covered. Further, the functional layer 50 may be larger than the first sheet portion 11 and protrude from the first sheet portion 11 when viewed from the front.

図３は、本実施形態の他の防水部材２を示す概略斜視図である。防水部材２は、防水部材本体２０と、機能層５０とを有する。 FIG. 3 is a schematic perspective view showing another waterproof member 2 of this embodiment. The waterproof member 2 includes a waterproof member main body 20 and a functional layer 50.

防水部材本体２０は、第１シート部２１と、第２シート部２２と、第３シート部２３とを有する。防水部材本体２０は、取り合い部を防水する機能を有する。 The waterproof member main body 20 has a first sheet portion 21 , a second sheet portion 22 , and a third sheet portion 23 . The waterproof member main body 20 has a function of waterproofing the connecting portion.

第１シート部２１は、ｘ軸方向に延在する矩形の平板状の第１面材２１１ａと、第１面材２１１ａの－ｘ軸方向の端部において＋ｚ軸方向に立ち上がって設けられた第２面材２１１ｂと、を有する。第１シート部２１は、正面視でＬ字状を呈する。第１シート部２１は、建物の外壁の外壁面に沿って配置される。 The first sheet part 21 includes a rectangular flat plate-shaped first surface material 211a extending in the x-axis direction, and a first surface material 211a that stands up in the +z-axis direction at the end of the first surface material 211a in the -x-axis direction. It has a two-sided material 211b. The first sheet portion 21 has an L-shape when viewed from the front. The first sheet portion 21 is arranged along the outer wall surface of the outer wall of the building.

第２シート部２２は、第１シート部２１と連続して形成されている。第２シート部２２は、第１面材２１１ａの上方の端部において第１面材２１１ａに交差して設けられ、－ｙ軸方向に延在している。 The second sheet portion 22 is formed continuously with the first sheet portion 21. The second sheet portion 22 is provided at the upper end of the first surface material 211a to intersect with the first surface material 211a, and extends in the -y axis direction.

第２シート部２２は、第１面材２１１ａに接続する平面部２２１と、平面部２２１の－ｙ軸方向の端部において＋ｚ軸方向に立ち上がって設けられた水返し部２２２と、を有する。平面部２２１は、ｘ軸方向に延在する平面視矩形の平板状の構造物である。水返し部２２２は、ｘ軸方向に延在する矩形の平板状の構造物である。 The second sheet part 22 has a flat part 221 connected to the first surface material 211a, and a water return part 222 provided at an end of the flat part 221 in the -y axis direction and rising in the +z axis direction. The plane portion 221 is a flat plate-like structure that is rectangular in plan view and extends in the x-axis direction. The water return portion 222 is a rectangular flat structure extending in the x-axis direction.

第３シート部２３は、第１シート部２１および第２シート部２２と連続して形成されている。第３シート部２３は、第２面材２１１ｂの＋ｘ側の端部において第２面材２１１ｂに交差して設けられ、－ｙ軸方向に延在している。 The third sheet portion 23 is formed continuously with the first sheet portion 21 and the second sheet portion 22. The third sheet portion 23 is provided to intersect with the second surface material 211b at the +x side end of the second surface material 211b, and extends in the -y axis direction.

また、第３シート部２３は、第２シート部２２の－ｘ側の端部において第２シート部２２に交差し、＋ｚ軸方向に立ち上がって設けられている。 Further, the third seat section 23 is provided to intersect with the second seat section 22 at the -x side end of the second seat section 22 and rise in the +z-axis direction.

すなわち、第３シート部２３は、第１シート部２１および第２シート部２２と交差し、第１シート部２１および第２シート部２２と連続して設けられている。 That is, the third sheet portion 23 intersects with the first sheet portion 21 and the second sheet portion 22 and is provided continuously with the first sheet portion 21 and the second sheet portion 22.

第３シート部２３は、第２面材２１１ｂおよび第２シート部２２に接続する平面部２３１と、平面部２３１の－ｙ軸方向の端部において、平面部２３１から＋ｘ軸方向に設けられた水返し部２３２と、を有する。平面部２３１は、ｚ軸方向に延在する矩形の平板状の構造物である。水返し部２３２は、ｚ軸方向に延在する矩形の平板状の構造物である。第２シート部２２の水返し部２２２と、第３シート部２３の水返し部２３２とは連続して形成され、正面視でＬ字状を呈する。 The third sheet part 23 includes a flat part 231 connected to the second surface material 211b and the second sheet part 22, and a flat part 231 provided in the +x-axis direction from the flat part 231 at the end of the flat part 231 in the -y-axis direction. It has a water returning part 232. The plane portion 231 is a rectangular flat structure extending in the z-axis direction. The water return portion 232 is a rectangular flat structure extending in the z-axis direction. The water return portion 222 of the second sheet portion 22 and the water return portion 232 of the third sheet portion 23 are continuously formed and have an L-shape when viewed from the front.

防水部材本体２０は、例えば、ポリエチレンを用い、射出成形によって製造することができる。 The waterproof member main body 20 can be manufactured by injection molding using polyethylene, for example.

機能層５０は、第１シート部２１の＋ｙ側の面（前面２１ｘ）であって、第１シート部２１の一部に設けられている。具体的には、機能層５０は、第１面材２１１ａと重なる位置に配置している。 The functional layer 50 is provided on the +y side surface (front surface 21x) of the first sheet portion 21 and in a part of the first sheet portion 21 . Specifically, the functional layer 50 is arranged at a position overlapping with the first surface material 211a.

図４～７は、本実施形態の防水構造の施工方法を示す工程図である。図４～７では、建物の外壁１００を貫通して形成された開口部１００Ａに、防水構造を施工する方法を示す。 4 to 7 are process charts showing the construction method of the waterproof structure of this embodiment. 4 to 7 show a method of constructing a waterproof structure in an opening 100A formed through an outer wall 100 of a building.

外壁１００は、ｘｚ平面に平行な外壁面１０１と、開口部１００Ａを構成する開口下面１０２と開口側面１０３とを有する。開口下面１０２はｘｙ平面に平行な面である。開口側面１０３はｙｚ平面に平行な面である。 The outer wall 100 has an outer wall surface 101 parallel to the xz plane, an opening lower surface 102 and an opening side surface 103 that constitute the opening 100A. The lower surface 102 of the opening is a surface parallel to the xy plane. The opening side surface 103 is a surface parallel to the yz plane.

開口部１００Ａには、例えば、窓枠やサッシが挿入される。上述した防水部材１，２は、このような開口部１００Ａと、窓枠やサッシとの取り合い部を防水するために用いられる。 For example, a window frame or a sash is inserted into the opening 100A. The above-described waterproof members 1 and 2 are used to waterproof the connecting portion between the opening 100A and the window frame or sash.

まず、図４に示すように、開口部１００Ａの配置位置に、防水両面テープを用いて防水部材本体１０を貼合する。具体的には、防水部材本体１０の第１シート部１１を外壁面１０１に沿わせ、第２シート部１２（平面部１２１）を開口下面１０２に沿わせる。防水部材本体１０は、本発明における「第１の防水部材本体」に該当する。 First, as shown in FIG. 4, the waterproof member main body 10 is bonded to the opening 100A using waterproof double-sided tape. Specifically, the first sheet portion 11 of the waterproof member main body 10 is placed along the outer wall surface 101, and the second sheet portion 12 (flat portion 121) is placed along the opening lower surface 102. The waterproof member main body 10 corresponds to the "first waterproof member main body" in the present invention.

次いで、図５に示すように、開口部１００Ａの配置位置に、防水両面テープを用いて防水部材本体２０を貼合する。具体的には、防水部材本体２０の第１シート部２１を外壁面１０１に沿わせ、第２シート部２２（平面部２２１）を開口下面１０２に沿わせ、第３シート部２３（平面部２３１）を開口側面１０３に沿わせる。防水部材本体２０は、本発明における「第２の防水部材本体」に該当する。 Next, as shown in FIG. 5, the waterproof member body 20 is bonded to the opening 100A using waterproof double-sided tape. Specifically, the first sheet portion 21 of the waterproof member main body 20 is aligned with the outer wall surface 101, the second sheet portion 22 (plane portion 221) is aligned with the opening lower surface 102, and the third sheet portion 23 (plane portion 231) is aligned with the outer wall surface 101. ) along the opening side surface 103. The waterproof member main body 20 corresponds to the "second waterproof member main body" in the present invention.

また、防水部材本体２０は、防水部材本体１０の－ｘ側の端部に重ねて配置する。 Further, the waterproof member main body 20 is arranged to overlap the −x side end of the waterproof member main body 10.

次いで、図６に示すように、防水部材本体１０の第１シート部１１、および防水部材本体２０の第１シート部２１の一部に重なるように、粘着剤層と不織布とが積層した粘着テープ５５を貼合する。防水部材本体１０に粘着テープ５５を貼合することにより、防水部材本体１０と粘着剤層と不織布とがこの順に積層した防水部材１が得られる。粘着剤層は、図１における樹脂層５２に該当する。不織布は、図１におけるモルタル密着層５１に該当する。粘着テープ５５は、機能層５０に該当する。 Next, as shown in FIG. 6, an adhesive tape in which an adhesive layer and a nonwoven fabric are laminated is applied so as to partially overlap the first sheet portion 11 of the waterproof member main body 10 and the first sheet portion 21 of the waterproof member main body 20. 55 is laminated. By laminating the adhesive tape 55 to the waterproof member main body 10, the waterproof member 1 in which the waterproof member main body 10, the adhesive layer, and the nonwoven fabric are laminated in this order is obtained. The adhesive layer corresponds to the resin layer 52 in FIG. The nonwoven fabric corresponds to the mortar adhesion layer 51 in FIG. The adhesive tape 55 corresponds to the functional layer 50.

また、防水部材本体２０に粘着テープ５５を貼合することにより、防水部材本体２０と粘着剤層と不織布とがこの順に積層した防水部材２が得られる。粘着剤層は、図３における樹脂層５２に該当する。不織布は、図３におけるモルタル密着層５１に該当する。粘着テープ５５は、機能層５０に該当する。 Moreover, by pasting the adhesive tape 55 to the waterproof member main body 20, the waterproof member 2 in which the waterproof member main body 20, the adhesive layer, and the nonwoven fabric are laminated in this order can be obtained. The adhesive layer corresponds to the resin layer 52 in FIG. The nonwoven fabric corresponds to the mortar adhesion layer 51 in FIG. The adhesive tape 55 corresponds to the functional layer 50.

なお、図６に示すように、防水部材本体１０と防水部材本体２０とに粘着テープ５５を貼合する際、防水部材本体１０の第１シート部１１と、防水部材本体２０の第１シート部２１とにまたがって粘着テープ５５を貼合し、防水部材本体１０と防水部材本体２０とを連結するとよい。この場合、防水部材本体１０と防水部材本体２０が粘着テープ５５により一体化し、防水性能を確保しやすく好ましい。 As shown in FIG. 6, when bonding the adhesive tape 55 to the waterproof member main body 10 and the waterproof member main body 20, the first sheet portion 11 of the waterproof member main body 10 and the first sheet portion of the waterproof member main body 20 are bonded together. 21 to connect the waterproof member main body 10 and the waterproof member main body 20. In this case, it is preferable that the waterproof member main body 10 and the waterproof member main body 20 are integrated with the adhesive tape 55 because it is easy to ensure waterproof performance.

また、図６に示すように、防水部材本体１０と防水部材本体２０とに粘着テープ５５を貼合する際、粘着テープ５５を用いて、防水部材本体１０と防水部材本体２０とを外壁面１０１に固定するとよい。この場合、防水部材本体１０と防水部材本体２０を強固に外壁面１０１に固定し、防水性能を確保しやすく好ましい。 Further, as shown in FIG. 6, when bonding the adhesive tape 55 to the waterproof member main body 10 and the waterproof member main body 20, the adhesive tape 55 is used to attach the waterproof member main body 10 and the waterproof member main body 20 to the outer wall surface 101. It is recommended to fix it to . In this case, it is preferable to firmly fix the waterproof member main body 10 and the waterproof member main body 20 to the outer wall surface 101 so that waterproof performance can be easily ensured.

次いで、図７に示すように、外壁面１０１に不図示のラス板を取り付けた後に、機能層５０に重ねて外壁面１０１にモルタルを塗工し、モルタル層９０を形成する。ラス板は、タッカーを用いてステープラーを外壁面１０１に打ち込むことにより、外壁面１０１に取り付けることができる。上述したように、ステープラーの針孔の周囲では、樹脂層５２が変形して針孔を塞ぎ、水の浸入を抑制する。 Next, as shown in FIG. 7, after attaching a lath board (not shown) to the outer wall surface 101, mortar is applied to the outer wall surface 101 so as to overlap the functional layer 50, thereby forming a mortar layer 90. The lath board can be attached to the outer wall surface 101 by driving a stapler into the outer wall surface 101 using a tacker. As described above, the resin layer 52 deforms around the stapler hole to close the needle hole and prevent water from entering.

また、塗工したモルタルは、機能層５０が有するモルタル密着層５１に食い込むため、硬化後に剥落を抑制することができる。 Further, since the applied mortar bites into the mortar adhesion layer 51 of the functional layer 50, peeling can be suppressed after hardening.

その後、開口部１００Ａにサッシや窓枠を取り付ける。サッシや窓枠と、開口部１００Ａとの取り合い部には、防水部材１（防水部材本体１０）および防水部材２（防水部材本体２０）が取り付けられているため、良好に防水することができる。 After that, a sash or window frame is attached to the opening 100A. Since the waterproof member 1 (waterproof member main body 10) and the waterproof member 2 (waterproof member main body 20) are attached to the joint between the sash or window frame and the opening 100A, good waterproofing can be achieved.

以上のようにして、本実施形態の防水構造の施工方法を実施することができる。 As described above, the waterproof structure construction method of this embodiment can be carried out.

以上のような構成の防水構造の施工方法および防水部材によれば、建物外壁において容易に防水処理を行うとともに、モルタル塗工が可能となる。 According to the method for constructing a waterproof structure and the waterproof member configured as described above, it is possible to easily perform waterproofing treatment on the outer wall of a building and to apply mortar coating.

［第２実施形態］
図８～１２は、本発明の第２実施形態に係る防水構造の施工方法および防水部材の説明図である。本実施形態の防水構造の施工方法および防水部材は、第１実施形態の防水構造の施工方法および防水部材と一部共通している。したがって、本実施形態において第１実施形態と共通する構成要素については同じ符号を付し、詳細な説明は省略する。 [Second embodiment]
8 to 12 are explanatory diagrams of a construction method of a waterproof structure and a waterproof member according to a second embodiment of the present invention. The method of constructing a waterproof structure and the waterproof member of this embodiment are partially common to the method of constructing a waterproof structure and the waterproof member of the first embodiment. Therefore, in this embodiment, components common to those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

図８は、本実施形態の防水部材３を示す概略斜視図である。図９は、本実施形態の防水部材３を示す断面図であり、図８における線分ＩＸ-ＩＸにおける矢視断面図である。 FIG. 8 is a schematic perspective view showing the waterproof member 3 of this embodiment. FIG. 9 is a sectional view showing the waterproof member 3 of this embodiment, and is a sectional view taken along line IX-IX in FIG. 8.

図８，９に示すように、本実施形態の防水部材３は、防水部材本体３０と、機能層５０とを有する。 As shown in FIGS. 8 and 9, the waterproof member 3 of this embodiment includes a waterproof member main body 30 and a functional layer 50.

防水部材本体３０は、第１シート部３１と、第２シート部３２とを有する。防水部材本体３０は、取り合い部を防水する機能を有する。 The waterproof member main body 30 has a first sheet portion 31 and a second sheet portion 32. The waterproof member main body 30 has a function of waterproofing the connecting portion.

第１シート部３１は、第１貫通孔３１ａを有する平面視矩形の平板状の部材である。第１シート部３１は、建物の外壁面に沿って配置される。第１シート部３１は、少なくとも建物の外壁面に固定するときに第１シート部３１が波打つことがない程度の硬さを有している。 The first sheet portion 31 is a flat plate-like member that is rectangular in plan view and has a first through hole 31a. The first sheet portion 31 is arranged along the outer wall surface of the building. The first sheet part 31 has at least enough hardness to prevent the first sheet part 31 from undulating when fixed to the outer wall surface of a building.

第１シート部３１は、第２シート部３２が重なる重畳部３１ｂを有している。重畳部３１ｂは、第１シート部３１の第１貫通孔３１ａの周縁部分に形成される。具体的には、重畳部３１ｂは、第１貫通孔３１ａの端縁に沿った一定幅の環状の領域である。 The first sheet portion 31 has an overlapping portion 31b on which the second sheet portion 32 overlaps. The overlapping portion 31b is formed at a peripheral portion of the first through hole 31a of the first sheet portion 31. Specifically, the overlapping portion 31b is an annular region having a constant width along the edge of the first through hole 31a.

第２シート部３２は、平面視円形を呈し、第１貫通孔３１ａよりも直径の小さな第２貫通孔３２ａが設けられた板状体である。第２貫通孔３２ａは、第２シート部３２の輪郭と同心円となっている。第２シート部３２は、第１シート部３１より軟質の素材で構成されている。 The second sheet portion 32 is a plate-shaped body having a circular shape in plan view and provided with a second through hole 32a having a smaller diameter than the first through hole 31a. The second through hole 32a is concentric with the outline of the second sheet portion 32. The second sheet portion 32 is made of a softer material than the first sheet portion 31.

第２シート部３２は、第２貫通孔３２ａが第１貫通孔３１ａの内側に位置する状態で第１シート部３１に重ねられたときに、第１シート部３１の重畳部３１ｂに一体に重なる重畳部３２ｂを有する。重畳部３２ｂは、第２シート部３２の外周部分に形成される。具体的には、重畳部３２ｂは、第２シート部３２の外周縁に沿った一定幅の環状の領域である。重畳部３１ｂと重畳部３２ｂとは同じ幅である。 When the second sheet portion 32 is overlapped with the first sheet portion 31 with the second through hole 32a located inside the first through hole 31a, the second sheet portion 32 integrally overlaps the overlapping portion 31b of the first sheet portion 31. It has an overlapping part 32b. The overlapping portion 32b is formed at the outer peripheral portion of the second seat portion 32. Specifically, the overlapping portion 32b is an annular region having a constant width along the outer peripheral edge of the second sheet portion 32. The overlapping portion 31b and the overlapping portion 32b have the same width.

第２シート部３２は、自然状態の第２貫通孔３２ａよりも直径が大きく且つ第１貫通孔３１ａよりも直径の小さな配管を第２貫通孔３２ａに挿通させるときに、第２シート部３２が拡径する方向に変形して配管を挿通する。 The second sheet portion 32 has a larger diameter than the second through hole 32a in its natural state and a smaller diameter than the first through hole 31a when the second sheet portion 32 is inserted into the second through hole 32a. Deforms in the direction of diameter expansion and inserts the pipe.

重畳部３１ｂ及び重畳部３２ｂは、互いに嵌合する凹凸を有していてもよい。 The overlapping portion 31b and the overlapping portion 32b may have recesses and recesses that fit into each other.

第１シート部３１は、例えば、ポリエチレンを用い、射出成形によって製造することができる。 The first sheet portion 31 can be manufactured by injection molding using polyethylene, for example.

第２シート部３２は、例えば、熱可塑性エラストマーを用い、射出成形によって製造することができる。 The second sheet portion 32 can be manufactured, for example, by injection molding using a thermoplastic elastomer.

第１シート部３１の前面３１ｘには、第１シート部３１の一辺に沿って機能層５０が設けられている。 A functional layer 50 is provided on the front surface 31x of the first sheet portion 31 along one side of the first sheet portion 31.

図１０～１２は、本実施形態の防水構造の施工方法を示す工程図である。図１０～１２では、建物の外壁２００を貫通して形成された貫通孔２００Ａと、貫通孔２００Ａに挿通された配管２５０との間の隙間２００Ｘに防水構造を施工する方法を示す。 10 to 12 are process charts showing the construction method of the waterproof structure of this embodiment. 10 to 12 show a method of constructing a waterproof structure in a gap 200X between a through hole 200A formed through an outer wall 200 of a building and a pipe 250 inserted into the through hole 200A.

まず、図１０に示すように、防水部材本体３０の第１シート部３１の前面３１ｘに粘着テープ５５を貼合することにより、防水部材本体３０と粘着剤層と不織布とがこの順に積層した防水部材３が得られる。粘着剤層は、図８における樹脂層５２に該当する。不織布は、図８におけるモルタル密着層５１に該当する。粘着テープ５５は、機能層５０に該当する。 First, as shown in FIG. 10, by pasting the adhesive tape 55 on the front surface 31x of the first sheet portion 31 of the waterproof member main body 30, the waterproof member main body 30, the adhesive layer, and the nonwoven fabric are laminated in this order. Part 3 is obtained. The adhesive layer corresponds to the resin layer 52 in FIG. The nonwoven fabric corresponds to the mortar adhesion layer 51 in FIG. The adhesive tape 55 corresponds to the functional layer 50.

次いで、図１１に示すように、機能層５０が－ｚ側となる姿勢で、防水部材３の第２貫通孔３２ａに配管２５０を挿通する。配管２５０は、自然状態の第２貫通孔３２ａよりも直径が大きく且つ第１貫通孔３１ａよりも直径の小さな配管である。配管２５０は、第２シート部３２を拡径させながら第２貫通孔３２ａに挿通される。 Next, as shown in FIG. 11, the pipe 250 is inserted into the second through hole 32a of the waterproof member 3 with the functional layer 50 facing the -z side. The pipe 250 is a pipe that has a larger diameter than the second through hole 32a in its natural state and a smaller diameter than the first through hole 31a. The pipe 250 is inserted into the second through hole 32a while expanding the diameter of the second sheet portion 32.

次いで、防水部材３は、防水両面テープを用いて外壁面２０１に貼合される。これにより、貫通孔２００Ａと配管２５０との間の隙間２００Ｘを防水する。 Next, the waterproof member 3 is attached to the outer wall surface 201 using waterproof double-sided tape. This makes the gap 200X between the through hole 200A and the pipe 250 waterproof.

次いで、図１２に示すように、外壁面２０１に不図示のラス板を取り付けた後に、機能層５０に重ねて外壁面２０１にモルタルを塗工し、モルタル層９０を形成する。その後、必要に応じて、外壁面２０１に貫通孔２００Ａを覆う配管カバーを取り付けてもよい。 Next, as shown in FIG. 12, after attaching a lath board (not shown) to the outer wall surface 201, mortar is applied to the outer wall surface 201 so as to overlap the functional layer 50, thereby forming a mortar layer 90. Thereafter, a piping cover may be attached to the outer wall surface 201 to cover the through hole 200A, if necessary.

貫通孔２００Ａと配管２５０との取り合い部には、防水部材３が取り付けられているため、良好に防水することができる。 Since the waterproof member 3 is attached to the joint between the through hole 200A and the pipe 250, good waterproofing can be achieved.

また、塗工したモルタルは、機能層５０が有するモルタル密着層５１に食い込むため、硬化後に剥落を抑制することができる。 Further, since the applied mortar bites into the mortar adhesion layer 51 of the functional layer 50, peeling can be suppressed after hardening.

以上のようにして、本実施形態の防水構造の施工方法を実施することができる。 As described above, the waterproof structure construction method of this embodiment can be carried out.

以上のような構成の防水構造の施工方法および防水部材によれば、建物外壁において容易に防水処理を行うとともに、モルタル塗工が可能となる。 According to the method for constructing a waterproof structure and the waterproof member configured as described above, it is possible to easily perform waterproofing treatment on the outer wall of a building and to apply mortar coating.

なお、上述の実施形態においては、樹脂層５２の形成材料として粘着剤を用いることとしたが、これに限らない。樹脂層５２の形成材料として粘着性を有しない軟質材料（例えば合成ゴム）を用いる場合には、樹脂層５２と防水部材本体とを、別途接着剤で接着することとしてもよい。 In addition, in the above-mentioned embodiment, although we decided to use an adhesive as a forming material of the resin layer 52, it is not limited to this. When using a non-adhesive soft material (for example, synthetic rubber) as the material for forming the resin layer 52, the resin layer 52 and the waterproof member main body may be bonded together using a separate adhesive.

以上、添付図面を参照しながら本発明に係る好適な実施の形態例について説明したが、本発明は係る例に限定されないことは言うまでもない。上述した例において示した各構成部材の諸形状や組み合わせ等は一例であって、本発明の主旨から逸脱しない範囲において設計要求等に基づき種々変更可能である。 Although preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to these examples. The various shapes and combinations of the constituent members shown in the above example are merely examples, and can be variously changed based on design requirements and the like without departing from the gist of the present invention.

１，２，３…防水部材、１０，２０，３０…防水部材本体、１１，２１，３１…第１シート部、１２，２２，３２…第２シート部、２３…第３シート部、３１ａ…第１貫通孔、３２ａ…第２貫通孔、５１…モルタル密着層、５２…樹脂層、５５…粘着テープ、１００，２００…外壁、１０１，２０１…外壁面、２００Ａ…貫通孔、２５０…配管 1, 2, 3... Waterproof member, 10, 20, 30... Waterproof member main body, 11, 21, 31... First sheet portion, 12, 22, 32... Second sheet portion, 23... Third sheet portion, 31a... First through hole, 32a... Second through hole, 51... Mortar adhesion layer, 52... Resin layer, 55... Adhesive tape, 100, 200... Outer wall, 101, 201... Outer wall surface, 200A... Through hole, 250... Piping

Claims (4)

建物の外壁に形成された取り合い部を、防水部材を用いて防水する防水構造の施工方法であって、
前記防水部材は、前記外壁の外壁面に沿って配置される第１シート部と、前記第１シート部に連続して形成される第２シート部と、を有する防水部材本体を含み、
前記防水部材本体の前記第１シート部の少なくとも一部に、モルタル密着層と粘着剤層とが積層した粘着テープを貼合し、前記防水部材本体と前記粘着剤層と前記モルタル密着層とがこの順に積層した前記防水部材を得る工程と、
前記第１シート部を前記外壁面に沿わせ、前記防水部材を前記取り合い部に配置する工程と、を有する防水構造の施工方法。 A construction method for a waterproof structure in which a joint formed on an outer wall of a building is waterproofed using a waterproofing member, the method comprising:
The waterproof member includes a waterproof member main body having a first sheet portion disposed along the outer wall surface of the outer wall, and a second sheet portion formed continuously with the first sheet portion,
An adhesive tape in which a mortar adhesion layer and an adhesive layer are laminated is attached to at least a part of the first sheet portion of the waterproof member main body, and the waterproof member main body, the adhesive layer, and the mortar adhesion layer are bonded together. Obtaining the waterproof member laminated in this order;
A method for constructing a waterproof structure, comprising the steps of: aligning the first sheet part along the outer wall surface and arranging the waterproof member on the joining part. 第１の防水部材本体と、第２の防水部材本体とを含む複数の前記防水部材本体を用い、
前記防水部材を得る工程では、前記第１の防水部材本体の前記第１シート部と、前記第２の防水部材本体の前記第１シート部とにまたがって、前記粘着テープを貼合し、前記粘着テープを用いて前記第１の防水部材本体と、前記第２の防水部材本体とを連結する請求項１に記載の防水構造の施工方法。 Using a plurality of waterproof member bodies including a first waterproof member body and a second waterproof member body,
In the step of obtaining the waterproof member, the adhesive tape is laminated across the first sheet portion of the first waterproof member main body and the first sheet portion of the second waterproof member main body, and The method for constructing a waterproof structure according to claim 1, wherein the first waterproof member main body and the second waterproof member main body are connected using an adhesive tape. 防水部材を用い、建物の外壁に形成された取り合い部を防水する防水部材であって、
防水部材本体と、
モルタル密着層と、
前記防水部材本体と前記モルタル密着層との間に設けられた樹脂層とを有し、
前記防水部材本体は、前記外壁の外壁面に沿って配置される第１シート部と、前記第１シート部に連続して形成される第２シート部と、を有し、
前記モルタル密着層は、不織布を形成材料とし、
前記樹脂層および前記モルタル密着層は、前記第１シート部の少なくとも一部に積層して設けられており、
前記第１シート部は、第１貫通孔を有し、
前記第２シート部は、前記第１貫通孔に沿って設けられ、前記第１貫通孔よりも小径の第２貫通孔を有する防水部材。 A waterproof member that uses a waterproof member to waterproof a joint formed on an outer wall of a building,
A waterproof member main body,
mortar adhesion layer,
a resin layer provided between the waterproof member main body and the mortar adhesion layer,
The waterproof member main body has a first sheet portion disposed along the outer wall surface of the outer wall, and a second sheet portion formed continuously from the first sheet portion,
The mortar adhesion layer uses nonwoven fabric as a forming material,
The resin layer and the mortar adhesion layer are provided in a laminated manner on at least a portion of the first sheet portion ,
The first sheet portion has a first through hole,
The second sheet portion is a waterproof member that is provided along the first through hole and has a second through hole having a smaller diameter than the first through hole. 前記樹脂層は、粘着剤を形成材料とする請求項３に記載の防水部材。 The waterproof member according to claim 3 , wherein the resin layer is formed of an adhesive.
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