JP6866135B2 - Airtight seat mounting method and airtight structure - Google Patents

Airtight seat mounting method and airtight structure Download PDF

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JP6866135B2
JP6866135B2 JP2016233336A JP2016233336A JP6866135B2 JP 6866135 B2 JP6866135 B2 JP 6866135B2 JP 2016233336 A JP2016233336 A JP 2016233336A JP 2016233336 A JP2016233336 A JP 2016233336A JP 6866135 B2 JP6866135 B2 JP 6866135B2
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sheet material
airtight
floor panel
airtight sheet
heat insulating
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JP2018090988A (en
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紀幸 扇澤
紀幸 扇澤
浩士 水口
浩士 水口
健 伊地知
健 伊地知
渡辺　真志
真志 渡辺
七岡　寛
寛 七岡
茂 速水
茂 速水
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Daiwa House Industry Co Ltd
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本発明は、気密シート取付方法及び気密構造に係り、特に断熱基礎用の気密シート取付方法及び気密構造に関する。 The present invention relates to an airtight sheet mounting method and an airtight structure, and more particularly to an airtight sheet mounting method and an airtight structure for a heat insulating foundation.

寒冷地用の建物には、基礎に断熱材が取り付けられた断熱基礎仕様のものが一般に用いられる様になっている。
このように、建物を断熱基礎仕様とする場合には、床下空間までを気密空間とする必要がある。
このような壁の内壁側の近傍における床の取り合い部分に気密ラインの形成する技術として、特許文献１には、気密部材と断熱部材とが一体となった気密シート（同文献には、断熱気密部材と記載。）を用いる技術が開示されている。この気密シートは、基礎の上部から軸組み、床パネル、内壁枠へと断熱気密ラインを形成するものである。 For buildings for cold regions, those with a heat insulating foundation with a heat insulating material attached to the foundation are generally used.
In this way, when the building has a heat insulating foundation specification, it is necessary to make the space under the floor an airtight space.
As a technique for forming an airtight line in the floor connecting portion in the vicinity of the inner wall side of such a wall, Patent Document 1 describes an airtight sheet in which an airtight member and a heat insulating member are integrated (in the same document, heat insulating airtightness). A technique using the member (described as a member) is disclosed. This airtight sheet forms a heat insulating airtight line from the upper part of the foundation to the frame, the floor panel, and the inner wall frame.

特開２００４−７６３５３号公報Japanese Unexamined Patent Publication No. 2004-76353

しかし、断熱基礎と床と壁とが取合う、納まりが複雑な部分に、特許文献１の気密シートを取り付けることは取り合いの関係上困難であり、施工性を損ねる問題があった。
また、気密シートを取り付け可能なスペースが柱等によって分断されることがあり、効率的に取付作業を行うことが困難であった。 However, it is difficult to attach the airtight sheet of Patent Document 1 to the part where the heat insulating foundation, the floor, and the wall are in contact with each other and the fitting is complicated, and there is a problem that the workability is impaired.
In addition, the space where the airtight sheet can be attached may be divided by pillars or the like, and it is difficult to carry out the attachment work efficiently.

本発明は、上記の課題に鑑みてなされたものであり、本発明の目的は、気密処理の施工性を高めることが可能な気密シート取付方法及び気密構造を提供することにある。
また、本発明の目的は、柱等の近傍における気密処理の施工性を高めることが可能な気密シート取付方法及び気密構造を提供することにある。 The present invention has been made in view of the above problems, and an object of the present invention is to provide an airtight sheet mounting method and an airtight structure capable of improving the workability of the airtight treatment.
Another object of the present invention is to provide an airtight sheet mounting method and an airtight structure capable of improving the workability of the airtight treatment in the vicinity of a pillar or the like.

前記課題は、本発明の気密シート取付方法によれば、建物が備える断熱基礎の立上り部と床パネルとの間、及び該床パネルと内壁との間に気密シートを取り付ける気密シート取付方法であって、第１シート材を、前記断熱基礎の前記立上り部よりも屋内側から前記立上り部の上方に渡って取り付ける第１シート材取付工程と、該第１シート材取付工程の後、前記床パネルの側面が前記第１シート材の一部である対向部に対向するように、前記床パネルを取り付ける床パネル取付工程と、該床パネル取付工程の後、第２シート材を、前記第１シート材の前記対向部に前記第２シート材の一部である重なり部を重ねつつ、前記床パネルの上面側に渡って取り付ける第２シート材取付工程と、該第２シート材取付工程の後、前記第２シート材における前記床パネルの上面の少なくとも一部を覆う部位の上に前記内壁を取り付ける内壁取付工程と、を備えること、により解決される。
上記構成によれば、建物が備える断熱基礎の立上り部よりも屋内側から立上り部の上方に第１シート材を床パネルの側面に一部が対向するように取り付け、第２のシート材を、第１シート材の対向部に重なり部が重なるように取り付け、第２シート材における床パネルの上面の少なくとも一部を覆う部位の上に内壁を取り付けることで、気密構造を容易に形成することができ、気密処理の施工性を高めることができる。 According to the airtight sheet mounting method of the present invention, the problem is an airtight sheet mounting method for mounting an airtight sheet between a rising portion of a heat insulating foundation provided in a building and a floor panel, and between the floor panel and an inner wall. After the first sheet material mounting step of mounting the first sheet material from the indoor side of the heat insulating foundation above the rising portion and the first sheet material mounting step, the floor panel After the floor panel mounting step of mounting the floor panel and the floor panel mounting step so that the side surface of the floor panel faces the facing portion which is a part of the first sheet material, the second sheet material is attached to the first sheet. After the second sheet material mounting step of mounting the overlapping portion, which is a part of the second sheet material, on the facing portion of the material over the upper surface side of the floor panel, and the second sheet material mounting step. The solution is to include an inner wall mounting step of mounting the inner wall on a portion of the second sheet material that covers at least a part of the upper surface of the floor panel.
According to the above configuration, the first sheet material is attached from the indoor side to the upper part of the rising part of the heat insulating foundation provided in the building so as to partially face the side surface of the floor panel, and the second sheet material is attached. An airtight structure can be easily formed by attaching the first sheet material so that the overlapping portion overlaps the facing portion and attaching the inner wall on the portion of the second sheet material that covers at least a part of the upper surface of the floor panel. It is possible to improve the workability of airtight treatment.

また、前記第１シート材取付工程の前において、前記第１シート材が前記断熱基礎の前記立上り部よりも屋内側から前記立上り部の上端の上方に渡って延在し、前記第１シート材の前記対向部が前記床パネルの側面に対向するように前記第１シート材を折り曲げるようにしてもよい。
上記構成によれば、第１シート材取付工程の前に、第１シート材を折り曲げることで、取り付けに適した所定の形状にして、第１シート材を所定位置に配することができる。 Further, before the first sheet material attaching step, the first sheet material extends from the indoor side of the heat insulating foundation to above the upper end of the rising portion, and the first sheet material extends above the upper end of the rising portion. The first sheet material may be bent so that the facing portion thereof faces the side surface of the floor panel.
According to the above configuration, by bending the first sheet material before the first sheet material attaching step, the first sheet material can be arranged at a predetermined position in a predetermined shape suitable for attachment.

また、前記第２シート材取付工程において、前記第２シート材が、前記重なり部で前記対向部に重なりつつ、前記床パネルの上面の少なくとも一部を覆うように前記第２シート材を折り曲げるようにするとよい。
上記構成によれば、第２シート材取付工程において、床パネルに内壁取付用の墨打ちをする際に邪魔にならないように、第２シート材が自然状態のときに床パネルの墨打ちし、その後に、第２シート材を折り曲げて取り付けに適した所定の形状にして、所定位置に配することができる。 Further, in the second sheet material attaching step, the second sheet material is bent so as to cover at least a part of the upper surface of the floor panel while overlapping the facing portion at the overlapping portion. It is good to set it to.
According to the above configuration, in the process of attaching the second sheet material, the floor panel is inked when the second sheet material is in a natural state so as not to interfere with the inking of the floor panel for attaching the inner wall. After that, the second sheet material can be bent into a predetermined shape suitable for attachment and arranged at a predetermined position.

また、前記課題は、本発明の気密構造によれば、建物が備える断熱基礎の立上り部と床パネルとの間、及び該床パネルと内壁との間に形成される気密構造であって、前記断熱基礎の前記立上り部よりも屋内側から前記立上り部の上端の上方に渡って取り付けられる部材であり、前記床パネルの側面に対向する対向部を有する第１シート材と、前記対向部に重なる重なり部を有し、前記床パネルの上面側に渡って取り付けられる第２シート材と、から構成され、前記第２シート材における前記床パネルの上面の少なくとも一部を覆う部位の上に、前記内壁が取り付けられていること、により解決される。
上記構成によれば、建物における断熱基礎の立上り部よりも屋内側から立上り部の上端の上方に渡って取り付けられる部材であり、床パネルの側面に対向する対向部を有する第１シート材と、対向部に重なる重なり部を有する第２シート材と、から構成されていることで、容易に形成することが可能な気密構造を提供して、気密処理の施工性を高めることができる。 Further, according to the airtight structure of the present invention, the problem is an airtight structure formed between the rising portion of the heat insulating foundation provided in the building and the floor panel, and between the floor panel and the inner wall. It is a member that is attached from the indoor side of the heat insulating foundation to above the upper end of the rising portion, and overlaps the first sheet material having the facing portion facing the side surface of the floor panel and the facing portion. The second sheet material having an overlapping portion and being attached over the upper surface side of the floor panel is formed on the portion of the second sheet material that covers at least a part of the upper surface of the floor panel. It is solved by the fact that the inner wall is attached.
According to the above configuration, a first sheet material which is a member attached from the indoor side to above the upper end of the rising portion of the heat insulating foundation in the building and has an facing portion facing the side surface of the floor panel. By being composed of a second sheet material having an overlapping portion overlapping the facing portions, an airtight structure that can be easily formed can be provided, and the workability of the airtight treatment can be improved.

また、前記第１シート材及び前記第２シート材が前記建物に取り付けられた状態において、前記第１シート材の前記対向部と前記第２シート材の前記重なり部は、鉛直方向に延在しており、前記建物に設けられた前記床パネルの側面に対向する位置で連結されていると好ましい。
上記構成によれば、第１シート材の対向部、及び第２シート材の重なり部が鉛直方向に延在していることで、床パネルの側面に沿う形状とすることができ、床パネルと干渉して、第１シート材及び第２シート材が変形することを抑制できる。 Further, in a state where the first sheet material and the second sheet material are attached to the building, the facing portion of the first sheet material and the overlapping portion of the second sheet material extend in the vertical direction. It is preferable that the floor panel is connected to the side surface of the floor panel provided in the building at a position facing the side surface.
According to the above configuration, the facing portion of the first sheet material and the overlapping portion of the second sheet material extend in the vertical direction, so that the shape can be formed along the side surface of the floor panel. It is possible to prevent the first sheet material and the second sheet material from being deformed due to interference.

さらに、前記第１シート材及び前記第２シート材のいずれか一方には、屈曲部分に折り目が形成されていてもよい。
上記構成によれば、第１シート材及び前記第２シート材に、折り目が形成されていることで、床パネルに内壁取付用の墨打ちをする際に邪魔にならないよう、墨打ち後に折り曲げて所定位置に配することができ、現場での施工作業を容易にすることができる。 Further, creases may be formed in the bent portion of either the first sheet material or the second sheet material.
According to the above configuration, since the first sheet material and the second sheet material are formed with creases, the floor panel is bent after being inked so as not to interfere with the inking for mounting on the inner wall. It can be placed in a predetermined position, facilitating on-site construction work.

また、前記第２シート材は、前記第１シート材よりも硬質の材料から成るものであると好ましい。
上記構成によれば、第１シート材を施工し、床パネルを施工した後に、第２シート材を床パネルと他の部材の隙間に差し込みやすくなり、施工性を高めることができる。 Further, it is preferable that the second sheet material is made of a material that is harder than the first sheet material.
According to the above configuration, after the first sheet material is installed and the floor panel is installed, the second sheet material can be easily inserted into the gap between the floor panel and other members, and the workability can be improved.

本発明によれば、気密構造を容易に形成することができ、気密処理の施工性を高めることができる。
さらに、突出部位の有無に関わらず容易に気密性を確保することができ、気密処理の施工性を高めることができる。
また、第１シート材を所定位置に配することができる。
また、床パネルに内壁取付用の墨打ちをする際に邪魔にならないよう、床パネルの墨打ち後に第２シート材を折り曲げて所定位置に配することができる。
また、本発明によれば、容易に形成することが可能な気密構造を提供して、気密処理の施工性を高めることができる。
また、床パネルと干渉して、第１シート材及び第２シート材が変形することを抑制できる。
さらに、床パネルに内壁取付用の墨打ちをする際に邪魔にならないよう、墨打ち後に折り曲げて所定位置に配することができ、現場での施工作業を容易にすることができる。
また、気密構造を形成する部分に突出部位がある場合でも、容易に気密性を確保することができる。
また、第１シート材を施工し、床パネルを施工した後に、第２シート材を床パネルと他の部材の隙間に差し込みやすくなり、施工性を高めることができる。 According to the present invention, an airtight structure can be easily formed, and the workability of the airtight treatment can be improved.
Further, the airtightness can be easily ensured regardless of the presence or absence of the protruding portion, and the workability of the airtight treatment can be improved.
In addition, the first sheet material can be arranged at a predetermined position.
In addition, the second sheet material can be bent and placed at a predetermined position after the floor panel is inked so as not to interfere with the inking of the floor panel for mounting on the inner wall.
Further, according to the present invention, it is possible to provide an airtight structure that can be easily formed and improve the workability of the airtight treatment.
In addition, it is possible to prevent the first sheet material and the second sheet material from being deformed due to interference with the floor panel.
Further, the floor panel can be bent and placed at a predetermined position so as not to interfere with the marking of the inner wall for mounting on the floor panel, so that the construction work at the site can be facilitated.
Further, even if there is a protruding portion in the portion forming the airtight structure, the airtightness can be easily ensured.
Further, after the first sheet material is installed and the floor panel is installed, the second sheet material can be easily inserted into the gap between the floor panel and other members, and the workability can be improved.

建物の屋内側において、気密構造を形成する部分を示す図であり、下側気密シート材を取り付けている状態を示す斜視図である。It is a figure which shows the part which forms the airtight structure on the indoor side of a building, and is the perspective view which shows the state which the lower side airtight sheet material is attached. 上下に重ね合わせられる下側気密シート材と上側気密シート材とを示す斜視図である。It is a perspective view which shows the lower airtight sheet material and the upper airtight sheet material which are superposed on the top and bottom. （ａ）は、上側気密シート材を示す模式的な側面図、（ｂ）下側気密シート材を示す模式的な側面図である。(A) is a schematic side view showing an upper airtight sheet material, and (b) is a schematic side view showing a lower airtight sheet material. 柱を覆うように柱用気密シート材を断熱基礎に取り付けた状態を示す斜視図である。It is a perspective view which shows the state which the airtight sheet material for a pillar is attached to a heat insulating foundation so as to cover a pillar. 柱用気密シート材を示す斜視図である。It is a perspective view which shows the airtight sheet material for a pillar. 柱用気密シート材における図５のVI-VI断面を示す断面矢視図である。It is sectional drawing which shows the VI-VI cross section of FIG. 5 in the airtight sheet material for a pillar. 入隅用気密シート材を示す斜視図である。It is a perspective view which shows the airtight sheet material for an inside corner. 気密シート取付方法を示すフローチャート図である。It is a flowchart which shows the airtight sheet mounting method. 断熱基礎の上端部に床パネル支持部材を配置した状態を示す斜視図である。It is a perspective view which shows the state which arranged the floor panel support member in the upper end part of the heat insulation foundation. 柱用気密シート材を断熱基礎の立上り部に取り付け、入隅用気密シート材を入隅部にある柱に取り付けた状態を示す斜視図である。It is a perspective view which shows the state which attached the airtight sheet material for a pillar to the rising part of a heat insulating foundation, and attached the airtight sheet material for an inside corner to a pillar in the inside corner part. 下側気密シート材を断熱基礎の立上り部に取り付けた状態を示す断面図である。It is sectional drawing which shows the state which attached the lower side airtight sheet material to the rising part of a heat insulating foundation. 床パネルを取り付けた後に、上側気密シート材を外壁パネルと床パネルの間に取り付けている状態を示す斜視図である。It is a perspective view which shows the state which the upper airtight sheet material is attached between the outer wall panel and the floor panel after attaching a floor panel. 上側気密シート材を外壁パネルと床パネルの間に取り付けた状態を示す斜視図である。It is a perspective view which shows the state which the upper airtight sheet material is attached between the outer wall panel and the floor panel. 内壁パネルを上側気密シート材上に取り付けている状態を示す斜視図である。It is a perspective view which shows the state which the inner wall panel is attached on the upper airtight sheet material. 内壁パネルを上側気密シート材上に取り付けた状態を示す断面図である。It is sectional drawing which shows the state which attached the inner wall panel on the upper airtight sheet material. 断熱基礎の立上り部の屋内側に断熱材を取り付けた状態を示す斜視図である。It is a perspective view which shows the state which attached the heat insulating material to the indoor side of the rising part of the heat insulating foundation. 出隅用気密シート材を示す斜視図である。It is a perspective view which shows the airtight sheet material for a protruding corner. 変形例に係る上側気密シート材を示す側面図である。It is a side view which shows the upper airtight sheet material which concerns on a modification.

本発明は、断熱基礎を備える建物に形成される気密構造、及び気密構造を形成するための気密シートを取り付ける気密シート取付方法に関する。
以下に、本発明の実施形態に係る気密構造及び気密シート取付方法について説明する。なお、以下に示す実施形態は、本発明の理解を容易にするためのものであり、本発明を限定するものではない。本発明は、その趣旨を逸脱することなく、変更、改良され得るとともに、本発明には各実施形態、変形例に係る特徴を組み合わせたもの、その等価物が含まれることは勿論である。 The present invention relates to an airtight structure formed in a building provided with a heat insulating foundation, and a method for attaching an airtight sheet for attaching an airtight sheet for forming the airtight structure.
The airtight structure and the airtight sheet mounting method according to the embodiment of the present invention will be described below. The embodiments shown below are for facilitating the understanding of the present invention, and do not limit the present invention. The present invention can be modified and improved without departing from the spirit thereof, and it goes without saying that the present invention includes a combination of features according to each embodiment and modification, and an equivalent thereof.

まず、図１を主に参照して外側断熱材１ｂを有する断熱基礎１を備える本発明に係る建物としての家屋Ｈにおける、本実施形態に係る気密構造を形成する部位について説明する。なお、図１は、家屋Ｈの屋内側において、気密構造を形成する部分を示す図であり、下側気密シート材３を取り付けている状態を示す斜視図である。なお、以下において、各部材の説明における屋内側、屋外側は、各部材が家屋Ｈに取り付けられた状態における屋内側、屋外側を示すものとする。 First, with reference mainly to FIG. 1, a portion forming an airtight structure according to the present embodiment in a house H as a building according to the present invention including a heat insulating foundation 1 having an outer heat insulating material 1b will be described. Note that FIG. 1 is a view showing a portion forming an airtight structure on the indoor side of the house H, and is a perspective view showing a state in which the lower airtight sheet material 3 is attached. In the following, the indoor side and the outdoor side in the description of each member shall indicate the indoor side and the outdoor side in the state where each member is attached to the house H.

気密構造は、断熱基礎１の立上り部１ａと床パネル１０（図１２参照）との間、及び床パネル１０と内壁パネル１３（図１４及び図１５参照）との間に形成される。
そして、気密構造を構成する主な部材は、気密シート及び第１シート材としての下側気密シート材３、気密シート及び第２シート材としての上側気密シート材４（図２参照）、気密シート及び連結シート材としての柱用気密シート材５及び入隅用気密シート材６である。 The airtight structure is formed between the rising portion 1a of the heat insulating foundation 1 and the floor panel 10 (see FIG. 12), and between the floor panel 10 and the inner wall panel 13 (see FIGS. 14 and 15).
The main members constituting the airtight structure are an airtight sheet, a lower airtight sheet material 3 as a first sheet material, an airtight sheet and an upper airtight sheet material 4 as a second sheet material (see FIG. 2), and an airtight sheet. The airtight sheet material 5 for columns and the airtight sheet material 6 for inside corners as connecting sheet materials.

＜気密構造の構成部材について＞
次に、気密構造を構成する各部材について、図２〜図７を主に参照して説明する。ここで、図２は、上下に重ね合わせられる下側気密シート材３と上側気密シート材４とを示す斜視図である。さらに、図３（ａ）は、上側気密シート材４を示す模式的な側面図、図３（ｂ）は、下側気密シート材３を示す模式的な側面図である。図４は、柱２を覆うように柱用気密シート材５を断熱基礎１に取り付けた状態を示す斜視図、図５は、柱用気密シート材５を示す斜視図であり、図６は、柱用気密シート材５における図５のVI-VI断面を示す断面矢視図である。図７は、入隅用気密シート材６を示す斜視図である。 <About the components of the airtight structure>
Next, each member constituting the airtight structure will be described mainly with reference to FIGS. 2 to 7. Here, FIG. 2 is a perspective view showing a lower airtight sheet material 3 and an upper airtight sheet material 4 that are vertically overlapped with each other. Further, FIG. 3A is a schematic side view showing the upper airtight sheet material 4, and FIG. 3B is a schematic side view showing the lower airtight sheet material 3. FIG. 4 is a perspective view showing a state in which the column airtight sheet material 5 is attached to the heat insulating foundation 1 so as to cover the column 2, FIG. 5 is a perspective view showing the column airtight sheet material 5, and FIG. It is sectional drawing which shows the VI-VI cross section of FIG. 5 in the airtight sheet material 5 for a pillar. FIG. 7 is a perspective view showing the airtight sheet material 6 for entering a corner.

下側気密シート材３と上側気密シート材４は、断熱基礎１の上端部１ａａ周りにおける直線部分の気密構造を構成する部材であり、ポリエチレン等の硬質樹脂からなる。また、図２及び図３に示すように、断面クランク状に形成されて直線的に延在しており、略面対称の形状であり、上側気密シート材４が下側気密シート材３よりも小さく形成されている。 The lower airtight sheet material 3 and the upper airtight sheet material 4 are members that form an airtight structure of a straight portion around the upper end portion 1aa of the heat insulating foundation 1, and are made of a hard resin such as polyethylene. Further, as shown in FIGS. 2 and 3, the cross-section is formed in a crank shape and extends linearly, has a substantially plane-symmetrical shape, and the upper airtight sheet material 4 is larger than the lower airtight sheet material 3. It is formed small.

下側気密シート材３は、下部３ａと、床パネル１０（図１２参照）の側面１０ｂが対向する対向部としての上部３ｂと、下部３ａの上端部と上部３ｂの下端部とに垂直に交差してこれらを接続する段差部３ｃと、から構成され、これらが連続的に形成された板状の部材である。また、下側気密シート材３は、断熱基礎１の立上り部１ａよりも屋内側から立上り部１ａの上端部１ａａの上方に渡って取り付けられる部材である。 The lower airtight sheet material 3 vertically intersects the lower portion 3a, the upper portion 3b as an opposing portion where the side surface 10b of the floor panel 10 (see FIG. 12) faces, and the upper end portion of the lower portion 3a and the lower end portion of the upper portion 3b. It is a plate-shaped member which is composed of a step portion 3c connecting these and a step portion 3c, and these are continuously formed. Further, the lower airtight sheet material 3 is a member attached from the indoor side to above the upper end portion 1aa of the rising portion 1a with respect to the rising portion 1a of the heat insulating foundation 1.

上側気密シート材４は、下側気密シート材３の上部３ｂに重なる重なり部としての下部４ａと、上部４ｂと、下部４ａの上端部と上部４ｂの下端部とに垂直に交差してこれらを接続する段差部４ｃと、から構成され、これらが連続的に形成された板状の部材である。上側気密シート材４は、図１３に示すように、床パネル１０と外壁パネル１２との隙間から床パネル１０の上面側に渡って取り付けられる部材である。 The upper airtight sheet material 4 vertically intersects the lower portion 4a as an overlapping portion overlapping the upper portion 3b of the lower airtight sheet material 3, the upper portion 4b, the upper end portion of the lower portion 4a, and the lower end portion of the upper portion 4b. It is a plate-shaped member composed of a step portion 4c to be connected and these are continuously formed. As shown in FIG. 13, the upper airtight sheet material 4 is a member attached to the upper surface side of the floor panel 10 through a gap between the floor panel 10 and the outer wall panel 12.

柱用気密シート材５は、柱２を覆って気密を確保するための部材である。柱用気密シート材５は、ポリプロピレン等の硬質樹脂からなり、長尺方向の延長上に柱２に跨って複数延在する下側気密シート材３及び上側気密シート材４のそれぞれを連結する部材である。
具体的には、突出部位としての柱２は、家屋Ｈに取り付けられた下側気密シート材３及び上側気密シート材４の延在方向に交差する方向である屋外から屋内に向かう方向に、外壁パネル１２の裏面から突出して形成されている。また、柱２は、下側気密シート材３及び上側気密シート材４の取付位置である、断熱基礎１の立上り部１ａの上方であって、外壁パネル１２よりも屋内側のスペースに突出して形成されている。下側気密シート材３及び上側気密シート材４のみでは、柱２周りにおいて気密構造を形成するのは困難であるため、柱２周りの気密構造を確保するための特別な形状を有する柱用気密シート材５が設けられている。 The airtight sheet material 5 for pillars is a member for covering the pillars 2 to ensure airtightness. The airtight sheet material 5 for columns is made of a hard resin such as polypropylene, and is a member that connects each of the lower airtight sheet material 3 and the upper airtight sheet material 4 extending over the column 2 in a long direction. Is.
Specifically, the pillar 2 as the projecting portion is an outer wall in the direction from the outside to the inside, which is the direction in which the lower airtight sheet material 3 and the upper airtight sheet material 4 attached to the house H intersect in the extending direction. It is formed so as to project from the back surface of the panel 12. Further, the pillar 2 is formed above the rising portion 1a of the heat insulating foundation 1, which is the mounting position of the lower airtight sheet material 3 and the upper airtight sheet material 4, and protrudes into the space on the indoor side of the outer wall panel 12. Has been done. Since it is difficult to form an airtight structure around the column 2 with only the lower airtight sheet material 3 and the upper airtight sheet material 4, the airtightness for columns having a special shape for ensuring the airtight structure around the column 2. A sheet material 5 is provided.

柱用気密シート材５は、図５に示すように、下側連結部５ａと、ベース側水平部５ｂと、上側連結部５ｃと、外側立板部５ｄと、中央側立板部５ｅと、内壁側水平部５ｆと、から構成されており、幅方向における中心面に対して面対称に形成されている。 As shown in FIG. 5, the airtight sheet material 5 for columns includes a lower connecting portion 5a, a base side horizontal portion 5b, an upper connecting portion 5c, an outer standing plate portion 5d, and a central side standing plate portion 5e. It is composed of a horizontal portion 5f on the inner wall side, and is formed symmetrically with respect to a central surface in the width direction.

下側連結部５ａは、その幅方向両端側において、隣接する下側気密シート材３の下部３ａにおける長尺方向の端部と重ね合わせられ、下側連結部５ａ自身を介してこれらを連結するためのものである。下側連結部５ａは、略鉛直に延在する平板状に形成されており、断熱基礎１の立上り部１ａにおける屋内側の側面に沿った状態で、下端部を気密テープ７によって当該側面に取り付けられる。このようにして、柱用気密シート材５における内外方向（屋内側と屋外側とを結ぶ方向）の位置決めがされて、断熱基礎１に固定される。また、下側連結部５ａの上端部から、ベース側水平部５ｂが屋外側に延在している。 The lower connecting portion 5a is overlapped with the long end portion in the lower portion 3a of the adjacent lower airtight sheet material 3 on both end sides in the width direction, and these are connected via the lower connecting portion 5a itself. Is for. The lower connecting portion 5a is formed in a flat plate shape extending substantially vertically, and the lower end portion is attached to the side surface by the airtight tape 7 in a state along the indoor side surface of the rising portion 1a of the heat insulating foundation 1. Be done. In this way, the airtight sheet material 5 for columns is positioned in the inside / outside direction (the direction connecting the indoor side and the outdoor side) and fixed to the heat insulating foundation 1. Further, a horizontal portion 5b on the base side extends from the upper end portion of the lower connecting portion 5a to the outdoor side.

ベース側水平部５ｂは、その幅方向両端側において、隣接する下側気密シート材３の段差部３ｃにおける長尺方向の端部と重ね合わせられ、ベース側水平部５ｂ自身を介してこれらを連結するためのものである。ベース側水平部５ｂは、上面視凹状に形成されており、略水平に延在している。また、ベース側水平部５ｂの幅方向中央部から上側連結部５ｃ及び中央側立板部５ｅが上方に延在しており、ベース側水平部５ｂの屋外側の端部から、外側立板部５ｄが上方に延在している。 The base-side horizontal portions 5b are overlapped with the elongated ends of the stepped portions 3c of the adjacent lower airtight sheet material 3 on both end sides in the width direction, and these are connected via the base-side horizontal portion 5b itself. It is for doing. The base-side horizontal portion 5b is formed in a concave shape on the upper surface and extends substantially horizontally. Further, the upper connecting portion 5c and the central side standing plate portion 5e extend upward from the widthwise central portion of the base side horizontal portion 5b, and the outer standing plate portion extends from the outdoor side end portion of the base side horizontal portion 5b. 5d extends upward.

上側連結部５ｃは、柱２の屋内側を覆いつつ、その幅方向両端側において、隣接する上側気密シート材４の上部４ｂにおける長尺方向の端部と重ね合わせられ、上側連結部５ｃ自身を介してこれらを連結するためのものである。上側連結部５ｃは、正面視Ｔ字状に形成されており、略鉛直に延在している。また、上側連結部５ｃの幅方向両側の下端部から内壁側水平部５ｆが屋外側に延在しており、上側連結部５ｃの中央側の幅方向両側の端部から、中央側立板部５ｅが屋外側に延在している。 The upper connecting portion 5c covers the indoor side of the pillar 2 and is overlapped with the long end portion of the upper 4b of the adjacent upper airtight sheet material 4 on both end sides in the width direction, so that the upper connecting portion 5c itself is connected. It is for connecting these through. The upper connecting portion 5c is formed in a T shape when viewed from the front, and extends substantially vertically. Further, the inner wall side horizontal portion 5f extends to the outdoor side from the lower ends on both sides of the upper connecting portion 5c in the width direction, and the central side standing plate portion extends from the end portions on both sides in the width direction on the center side of the upper connecting portion 5c. 5e extends to the outdoor side.

外側立板部５ｄは、幅方向両側において、隣接する下側気密シート材３の上部３ｂ、及び隣接する上側気密シート材４の下部４ａのそれぞれにおける長尺方向の端部と重ね合わせられ、外側立板部５ｄ自身を介してこれらを連結するためのものである。外側立板部５ｄは、正面視方形状に形成されており、略鉛直に延在している。また、外側立板部５ｄの屋内側の端部から中央側立板部５ｅが屋内側に延在しており、外側立板部５ｄの上端部から内壁側水平部５ｆが屋内側に延在している。 The outer standing plate portion 5d is overlapped with the long end portions of the upper portion 3b of the adjacent lower airtight sheet material 3 and the lower portion 4a of the adjacent upper airtight sheet material 4 on both sides in the width direction, and is outside. This is for connecting these via the standing plate portion 5d itself. The outer standing plate portion 5d is formed in a front view shape and extends substantially vertically. Further, the central side standing plate portion 5e extends from the indoor side end of the outer standing plate portion 5d to the indoor side, and the inner wall side horizontal portion 5f extends from the upper end portion of the outer standing plate portion 5d to the indoor side. doing.

中央側立板部５ｅは、柱２における屋内側に交差する側、つまり断熱基礎１の延在方向の両側、を覆うためのものである。つまり、対称に形成された対を成す中央側立板部５ｅの距離は、柱２における断熱基礎１の延在方向の長さと同じか、若干大きく形成されている。また、中央側立板部５ｅは、側面視方形状に形成されており、略鉛直に延在している。そして、中央側立板部５ｅの上端部から内壁側水平部５ｆが幅方向外側に延在している。 The central side standing plate portion 5e is for covering the side of the pillar 2 that intersects the indoor side, that is, both sides of the heat insulating foundation 1 in the extending direction. That is, the distance between the symmetrically formed pairs of the central side standing plate portions 5e is the same as or slightly larger than the length in the extending direction of the heat insulating foundation 1 in the pillar 2. Further, the central side standing plate portion 5e is formed in a side view shape and extends substantially vertically. Then, the inner wall side horizontal portion 5f extends outward in the width direction from the upper end portion of the central side standing plate portion 5e.

内壁側水平部５ｆは、幅方向両側において隣接する上側気密シート材４の段差部４ｃのそれぞれにおける長尺方向の端部と重ね合わせられ、内壁側水平部５ｆ自身を介してこれらを連結するためのものである。内壁側水平部５ｆは、平面視方形状に形成されており、略水平に延在している。 The inner wall side horizontal portion 5f is overlapped with the long end portion of each of the step portions 4c of the upper airtight sheet material 4 adjacent to each other on both sides in the width direction, and these are connected via the inner wall side horizontal portion 5f itself. belongs to. The horizontal portion 5f on the inner wall side is formed in a plan-viewing shape and extends substantially horizontally.

また、ベース側水平部５ｂと内壁側水平部５ｆとの距離は、下側気密シート材３の段差部３ｃの厚さと、上側気密シート材４の段差部４ｃの厚さと、床パネル１０の厚さとを加えた長さよりも大きい。さらに、内外方向（屋内と屋外とを結ぶ方向）における、下側連結部５ａと外側立板部５ｄとの距離は、下側気密シート材３の下部３ａにおける屋外側の面と上部３ｂにおける屋外側の面との距離と略等しい。また、上側連結部５ｃと外側立板部５ｄとの距離は、上側気密シート材４の下部４ａにおける屋外側の面と上部４ｂにおける屋外側の面との距離と略等しい。 The distance between the base side horizontal portion 5b and the inner wall side horizontal portion 5f is the thickness of the step portion 3c of the lower airtight sheet material 3, the thickness of the step portion 4c of the upper airtight sheet material 4, and the thickness of the floor panel 10. It is larger than the length including the halfbeak. Further, the distance between the lower connecting portion 5a and the outer standing plate portion 5d in the inner / outer direction (the direction connecting the indoor and the outdoor) is the distance between the outdoor side surface in the lower 3a of the lower airtight sheet material 3 and the roof in the upper 3b. Approximately equal to the distance to the outer surface. Further, the distance between the upper connecting portion 5c and the outer standing plate portion 5d is substantially equal to the distance between the outdoor side surface of the lower portion 4a of the upper airtight sheet material 4 and the outdoor side surface of the upper portion 4b.

このように柱用気密シート材５が形成されていることで、ベース側水平部５ｂと外側立板部５ｄと中央側立板部５ｅと内壁側水平部５ｆとで形成される凹部５ｇに、下側気密シート材３の上部３ｂ及び段差部３ｃ、上側気密シート材４の下部４ａ及び段差部４ｃ並びに床パネル１０の縁１０ｃが配設されることとなる。このように、柱用気密シート材５に凹部５ｇが形成されていることで、床パネル１０の縁１０ｃが柱用気密シート材５に入り込むことを可能となる。そして、床パネル１０と縁１０ｃと外壁パネル１２との間で下側気密シート材３及び上側気密シート材４を挟持できることとなるため、より気密性を高めることができる。 By forming the airtight sheet material 5 for columns in this way, the recess 5g formed by the base side horizontal portion 5b, the outer standing plate portion 5d, the central side standing plate portion 5e, and the inner wall side horizontal portion 5f is formed. The upper part 3b and the step portion 3c of the lower airtight sheet material 3, the lower part 4a and the step portion 4c of the upper airtight sheet material 4, and the edge 10c of the floor panel 10 are arranged. By forming the recess 5g in the airtight sheet material 5 for columns in this way, the edge 10c of the floor panel 10 can enter the airtight sheet material 5 for columns. Then, since the lower airtight sheet material 3 and the upper airtight sheet material 4 can be sandwiched between the floor panel 10, the edge 10c, and the outer wall panel 12, the airtightness can be further improved.

入隅用気密シート材６は、家屋Ｈの入隅部まで延在する下側気密シート材３及び上側気密シート材４のそれぞれを連結することによって気密を確保するための部材であり、ポリプロピレン等の硬質樹脂からなる。
具体的には、家屋Ｈの入隅部において直交する下側気密シート材３及び上側気密シート材４のそれぞれを連結することは、下側気密シート材３及び上側気密シート材４が段差部３ｃ又は段差部４ｃを有して形成されているため困難である。このため、入隅部における気密構造を確保するために特別な形状を有する入隅用気密シート材６が設けられている。 The airtight sheet material 6 for the inside corner is a member for ensuring airtightness by connecting each of the lower airtight sheet material 3 and the upper airtight sheet material 4 extending to the inside corner of the house H, and is made of polypropylene or the like. Made of hard resin.
Specifically, connecting each of the lower airtight sheet material 3 and the upper airtight sheet material 4 that are orthogonal to each other at the entrance corner of the house H means that the lower airtight sheet material 3 and the upper airtight sheet material 4 have a stepped portion 3c. Alternatively, it is difficult because it is formed with a stepped portion 4c. Therefore, in order to secure the airtight structure at the inside corner, the inside corner airtight sheet material 6 having a special shape is provided.

入隅用気密シート材６は、図７に示すように、略鉛直に延在する下部６ａと、下部６ａに平行に延在する上部６ｂと、略水平に延在して下部６ａの上端部と上部６ｂの下端部とを接続する段差部６ｃと、から構成されている。下部６ａ、上部６ｂ及び段差部６ｃのそれぞれは、入隅部の柱２の形状に合わせて、平面視Ｌ字状に屈曲するように形成されている。入隅用気密シート材６は、入隅部まで延在する下側気密シート材３及び上側気密シート材４が平面視Ｌ字状の下部６ａの面にそれぞれ突合せられた状態で気密テープ７によって貼り付けられることで、入隅用気密シート材６自身を介してこれらを連結することとなる。 As shown in FIG. 7, the airtight sheet material 6 for the inside corner has a lower portion 6a extending substantially vertically, an upper portion 6b extending substantially parallel to the lower portion 6a, and an upper end portion extending substantially horizontally to the upper end portion of the lower portion 6a. It is composed of a stepped portion 6c connecting the upper portion 6b and the lower end portion of the upper portion 6b. Each of the lower portion 6a, the upper portion 6b, and the step portion 6c is formed so as to be bent in an L shape in a plan view according to the shape of the pillar 2 at the inside corner. The airtight sheet material 6 for the inside corner is formed by the airtight tape 7 in a state where the lower airtight sheet material 3 and the upper airtight sheet material 4 extending to the inside corner are abutted against the surface of the lower portion 6a having an L shape in a plan view. By being attached, these are connected via the airtight sheet material 6 for entering the corner.

＜気密シートの取付方法について＞
次に、図１に加えて、図８〜図１６を主に参照して、下側気密シート材３、上側気密シート材４、柱用気密シート材５、入隅用気密シート材６等の取付方法について説明する。
なお、図８は、気密シート取付方法を示すフローチャート図である。図９は、断熱基礎１の上端部１ａａに床パネル支持部材８を配置した状態を示す斜視図、図１０は、柱用気密シート材５を断熱基礎１の立上り部１ａに取り付け、入隅用気密シート材６を入隅部にある柱２に取り付けた状態を示す斜視図である。また、図１１は、下側気密シート材３を断熱基礎１の立上り部１ａに取り付けた状態を示す断面図、図１２は、床パネル１０を取り付けた後に、上側気密シート材４を外壁パネル１２と床パネル１０の間に取り付けている状態を示す斜視図である。また、図１３は、上側気密シート材４を外壁パネル１２と床パネル１０の間に取り付けた状態を示す斜視図である。図１４は、内壁パネル１３を上側気密シート材４上に取り付けている状態を示す斜視図、図１５は、内壁パネル１３を上側気密シート材４上に取り付けた状態を示す断面図である。図１６は、断熱基礎１の立上り部１ａの屋内側に内側断熱材１ｃを取り付けた状態を示す斜視図である。 <How to attach the airtight sheet>
Next, in addition to FIG. 1, mainly referring to FIGS. 8 to 16, lower airtight sheet material 3, upper airtight sheet material 4, pillar airtight sheet material 5, inside corner airtight sheet material 6, etc. The mounting method will be described.
Note that FIG. 8 is a flowchart showing a method of attaching the airtight sheet. FIG. 9 is a perspective view showing a state in which the floor panel support member 8 is arranged on the upper end portion 1aa of the heat insulating foundation 1, and FIG. 10 is a perspective view in which the airtight sheet material 5 for columns is attached to the rising portion 1a of the heat insulating foundation 1 for entering a corner. It is a perspective view which shows the state which the airtight sheet material 6 is attached to the pillar 2 in the inside corner. Further, FIG. 11 is a cross-sectional view showing a state in which the lower airtight sheet material 3 is attached to the rising portion 1a of the heat insulating foundation 1, and FIG. 12 is a cross-sectional view in which the upper airtight sheet material 4 is attached to the outer wall panel 12 after the floor panel 10 is attached. It is a perspective view which shows the state which is attached between the floor panel 10. Further, FIG. 13 is a perspective view showing a state in which the upper airtight sheet material 4 is attached between the outer wall panel 12 and the floor panel 10. FIG. 14 is a perspective view showing a state in which the inner wall panel 13 is mounted on the upper airtight sheet material 4, and FIG. 15 is a cross-sectional view showing a state in which the inner wall panel 13 is mounted on the upper airtight sheet material 4. FIG. 16 is a perspective view showing a state in which the inner heat insulating material 1c is attached to the indoor side of the rising portion 1a of the heat insulating foundation 1.

気密シート取付方法は、図８に示すように、連結シート材取付工程Ｓ１、第１シート材取付工程としての下側気密シート材取付工程Ｓ２、床パネル取付工程Ｓ３、第２シート材取付工程としての上側気密シート材取付工程Ｓ４及び内壁パネル取付工程Ｓ５によって構成されている。
まず、図９に示す状態においては、断熱基礎１における立上り部１ａの上端部１ａａ上に、下側気密シート材３及び床パネル１０を載置するための複数の床パネル支持部材８が取り付けられている。 As shown in FIG. 8, the airtight sheet mounting method includes a connecting sheet material mounting step S1, a lower airtight sheet material mounting step S2 as the first sheet material mounting step, a floor panel mounting process S3, and a second sheet material mounting step. It is composed of the upper airtight sheet material mounting step S4 and the inner wall panel mounting step S5.
First, in the state shown in FIG. 9, a plurality of floor panel support members 8 for mounting the lower airtight sheet material 3 and the floor panel 10 are attached on the upper end portion 1aa of the rising portion 1a in the heat insulating foundation 1. ing.

そして、連結シート材取付工程Ｓ１において、図１０に示すように、断熱基礎１の直線部分に設けられた柱２を覆うように柱用気密シート材５を配置し、断熱基礎１の入隅に設けられた柱２を覆うように入隅用気密シート材６を配置する。
柱用気密シート材５の下側連結部５ａの下端部と立上り部１ａの屋内側の側面とに跨るように気密テープ７を貼り付けて、柱用気密シート材５を断熱基礎１に取り付ける。
また、入隅用気密シート材６を立上り部１ａの上端部１ａａに載せて、上部６ｂにおける平面視Ｌ字状のそれぞれの部位と、入隅部にある柱２における入隅用気密シート材６に対向する２面とに跨るように気密テープ７を貼り付けて、入隅用気密シート材６を柱２に取り付ける。
このように、家屋Ｈに形成された柱２を柱用気密シート材５及び入隅用気密シート材６で覆い、その後、次に説明するように、下側気密シート材３及び上側気密シート材４を柱用気密シート材５及び入隅用気密シート材６に取り付けることで、柱２の有無に関わらず容易に気密性を確保することができ、気密処理の施工性を高めることができる。 Then, in the connecting sheet material attaching step S1, as shown in FIG. 10, the airtight sheet material 5 for the pillar is arranged so as to cover the pillar 2 provided in the straight portion of the heat insulating foundation 1, and the airtight sheet material 5 for the pillar is arranged in the inner corner of the heat insulating foundation 1. The airtight sheet material 6 for entering the corner is arranged so as to cover the provided pillar 2.
An airtight tape 7 is attached so as to straddle the lower end of the lower connecting portion 5a of the pillar airtight sheet material 5 and the indoor side surface of the rising portion 1a, and the pillar airtight sheet material 5 is attached to the heat insulating foundation 1.
Further, the airtight sheet material 6 for the inside corner is placed on the upper end portion 1aa of the rising portion 1a, and each portion of the upper portion 6b having an L-shape in a plan view and the airtight sheet material 6 for the inside corner in the pillar 2 at the inside corner portion. The airtight tape 7 is attached so as to straddle the two surfaces facing the two surfaces, and the airtight sheet material 6 for the inside corner is attached to the pillar 2.
In this way, the pillar 2 formed in the house H is covered with the airtight sheet material 5 for the pillar and the airtight sheet material 6 for the inside corner, and then, as described below, the lower airtight sheet material 3 and the upper airtight sheet material 3 are covered. By attaching 4 to the airtight sheet material 5 for pillars and the airtight sheet material 6 for inside corners, the airtightness can be easily ensured regardless of the presence or absence of the pillar 2, and the workability of the airtight treatment can be improved.

次に、下側気密シート材取付工程Ｓ２において、図１及び図１１に示すように、下部３ａを断熱基礎１の立上り部１ａの屋内側から立上り部１ａの側面に沿わせつつ、床パネル支持部材８上に下側気密シート材３の段差部３ｃを載せる。このとき、下側気密シート材３の段差部３ｃは、立上り部１ａの上端部１ａａの上方に延在している。
さらに、下部３ａの下端部と立上り部１ａの屋内側側面に跨るように気密テープ７を貼り付けて、複数の下側気密シート材３を立上り部１ａに固定する。また、下側気密シート材３と柱用気密シート材５との重なり部分、及び下側気密シート材３と入隅用気密シート材６との当接部分に、隙間が生じないように気密テープ７を貼り付ける。 Next, in the lower airtight sheet material attaching step S2, as shown in FIGS. 1 and 11, the floor panel is supported while the lower portion 3a is provided along the side surface of the rising portion 1a from the indoor side of the rising portion 1a of the heat insulating foundation 1. The step portion 3c of the lower airtight sheet material 3 is placed on the member 8. At this time, the stepped portion 3c of the lower airtight sheet material 3 extends above the upper end portion 1aa of the rising portion 1a.
Further, the airtight tape 7 is attached so as to straddle the lower end portion of the lower portion 3a and the indoor side surface of the rising portion 1a, and the plurality of lower airtight sheet materials 3 are fixed to the rising portion 1a. Further, the airtight tape is provided so that there is no gap between the overlapping portion of the lower airtight sheet material 3 and the airtight sheet material 5 for the pillar and the contact portion between the lower airtight sheet material 3 and the airtight sheet material 6 for the inside corner. Paste 7.

次に、床パネル取付工程Ｓ３において、図１２及び図１３に示すように、複数の束９の上端部に設けられた載置板９ｂ上、及び床パネル支持部材８の上面を覆う下側気密シート材３上に床パネル１０を載置する。このとき床パネル１０の側面１０ｂは、下側気密シート材３の上部３ｂに対向するように配置されることとなる。
なお、束９は、柱部９ａと、柱部９ａの上端に取り付けられた載置板９ｂと、から構成されており、床パネル１０が取り付けられる前に、立上り部１ａよりも屋内側に所定間隔を開けて複数配設されるものである。 Next, in the floor panel mounting step S3, as shown in FIGS. 12 and 13, the lower airtightness covering the mounting plate 9b provided at the upper end of the plurality of bundles 9 and the upper surface of the floor panel support member 8 is airtight. The floor panel 10 is placed on the sheet material 3. At this time, the side surface 10b of the floor panel 10 is arranged so as to face the upper portion 3b of the lower airtight sheet material 3.
The bundle 9 is composed of a pillar portion 9a and a mounting plate 9b attached to the upper end of the pillar portion 9a, and is predetermined to be indoors from the rising portion 1a before the floor panel 10 is attached. A plurality of them are arranged at intervals.

そして、上側気密シート材取付工程Ｓ４において、上側気密シート材４の下部４ａを、外壁パネル１２と床パネル１０の側面１０ｂとの間に挿し込んで、下側気密シート材３の上部３ｂの少なくとも一部に重ねる。そして、上側気密シート材４の段差部４ｃを床パネル１０の縁１０ｃの上面１０ａに沿わせるようにして上側気密シート材４を取り付ける。
なお、上側気密シート材４は、下側気密シート材３よりも硬質の材料から成るものであると、上側気密シート材４を床パネル１０と外壁パネル１２との隙間に差し込みやすくなり、施工性を高めることができる。 Then, in the upper airtight sheet material attaching step S4, the lower part 4a of the upper airtight sheet material 4 is inserted between the outer wall panel 12 and the side surface 10b of the floor panel 10, and at least the upper part 3b of the lower airtight sheet material 3 is inserted. Overlay on a part. Then, the upper airtight sheet material 4 is attached so that the stepped portion 4c of the upper airtight sheet material 4 is aligned with the upper surface 10a of the edge 10c of the floor panel 10.
If the upper airtight sheet material 4 is made of a material harder than the lower airtight sheet material 3, the upper airtight sheet material 4 can be easily inserted into the gap between the floor panel 10 and the outer wall panel 12, and workability is improved. Can be enhanced.

次に、内壁パネル取付工程Ｓ５において、図１４及び図１５に示すように、床パネル１０の墨打ちに合わせて、内壁パネル１３を、外壁パネル１２の屋内側の面に沿わせて、上側気密シート材４における床パネル１０の上面１０ａの一部を覆う段差部４ｃ上に取り付ける。この際、上側気密シート材４は、床パネル１０と内壁パネル１３とに上下から挟まれることになるため、取付状態が安定することとなる。 Next, in the inner wall panel mounting step S5, as shown in FIGS. 14 and 15, the inner wall panel 13 is placed along the indoor side surface of the outer wall panel 12 in accordance with the marking of the floor panel 10, and is airtight on the upper side. It is attached on the stepped portion 4c that covers a part of the upper surface 10a of the floor panel 10 in the sheet material 4. At this time, since the upper airtight sheet material 4 is sandwiched between the floor panel 10 and the inner wall panel 13 from above and below, the mounting state is stable.

図１５に示すように、断熱基礎１の屋内側側面と床パネル１０の側面１０ｂと内壁パネル１３の屋内側側面とは水平方向において入り組んで配置されている。このような配置であっても、上記構成の下側気密シート材３、上側気密シート材４、柱用気密シート材５及び入隅用気密シート材６を用いた上記取付方法によって、円滑に気密構造を形成することができる。
具体的には、下側気密シート材３の上部３ｂは、段差部３ｃから屈曲して鉛直方向に延在しており、と上側気密シート材４の下部４ａは、段差部４ｃから屈曲して鉛直方向に延在しており、それぞれは、床パネル１０の側面１０ｂに対向する位置で連結されている。
このように、上部３ｂが段差部３ｃから屈曲し、下部４ａが段差部４ｃから屈曲して形成されていることで、床パネル１０に沿う形状となり、床パネル１０と干渉することによって下側気密シート材３及び上側気密シート材４が変形することを回避できる。
したがって、一旦取り付けた床パネル１０及び内壁パネル１３について、床パネル１０を床パネル支持部材８から持ち上げたり、内壁パネル１３を外壁パネル１２から離したりすることを要さず、円滑に気密構造を形成でき、気密処理の施工性を高めることができる。 As shown in FIG. 15, the indoor side surface of the heat insulating foundation 1, the side surface 10b of the floor panel 10, and the indoor side surface of the inner wall panel 13 are arranged intricately in the horizontal direction. Even with such an arrangement, the above mounting method using the lower airtight sheet material 3, the upper airtight sheet material 4, the pillar airtight sheet material 5, and the inside corner airtight sheet material 6 has a smooth airtightness. The structure can be formed.
Specifically, the upper portion 3b of the lower airtight sheet material 3 is bent from the step portion 3c and extends in the vertical direction, and the lower portion 4a of the upper airtight sheet material 4 is bent from the step portion 4c. It extends in the vertical direction, and each is connected at a position facing the side surface 10b of the floor panel 10.
As described above, the upper portion 3b is bent from the step portion 3c and the lower portion 4a is bent from the step portion 4c to form a shape along the floor panel 10 and to interfere with the floor panel 10 to make the lower side airtight. It is possible to prevent the sheet material 3 and the upper airtight sheet material 4 from being deformed.
Therefore, with respect to the floor panel 10 and the inner wall panel 13 once attached, it is not necessary to lift the floor panel 10 from the floor panel support member 8 or separate the inner wall panel 13 from the outer wall panel 12, and smoothly form an airtight structure. It is possible to improve the workability of airtight treatment.

さらに、寒冷地使用の家屋Ｈにおいては、より断熱性を高めるために、図１６に示すように、断熱基礎１の立上り部１ａの屋内側側面に、下側気密シート材３の下部３ａの一部を覆うように、内側断熱材１ｃをウレタン系接着剤にて固定してもよい。内側断熱材１ｃを取り付けは、上側気密シート材取付工程Ｓ４の後に行うようにすればよい。
また、下側気密シート材３の下部３ａを、内側断熱材１ｃと立上り部１ａの間ではなく、内側断熱材１ｃの屋内側側面の一部に沿わせて取り付けることが可能な形状としてもよい。 Further, in the house H used in a cold region, in order to further improve the heat insulating property, as shown in FIG. 16, one of the lower parts 3a of the lower airtight sheet material 3 is placed on the indoor side surface of the rising portion 1a of the heat insulating foundation 1. The inner heat insulating material 1c may be fixed with a urethane-based adhesive so as to cover the portion. The inner heat insulating material 1c may be attached after the upper airtight sheet material attaching step S4.
Further, the lower portion 3a of the lower airtight sheet material 3 may be attached not between the inner heat insulating material 1c and the rising portion 1a but along a part of the indoor side surface of the inner heat insulating material 1c. ..

＜変形例１＞
上記実施形態においては、柱２を覆う気密シートとして、柱用気密シート材５及び入隅用気密シート材６を例に説明したが、本発明はこれらの柱２を覆うものに限定されない。
例えば、図１７に示すように、家屋Ｈの出隅部に設けられた柱２を覆うように、気密シート及び連結シート材としての出隅用気密シート材１４を取り付けるようにしてもよい。なお、図１７は、出隅用気密シート材１４を示す斜視図である。 <Modification example 1>
In the above embodiment, as the airtight sheet for covering the pillar 2, the airtight sheet material 5 for the pillar and the airtight sheet material 6 for the inside corner have been described as examples, but the present invention is not limited to those covering the pillar 2.
For example, as shown in FIG. 17, the airtight sheet and the airtight sheet material 14 for the outside corner as the connecting sheet material may be attached so as to cover the pillar 2 provided at the outside corner portion of the house H. Note that FIG. 17 is a perspective view showing the airtight sheet material 14 for the outside corner.

出隅用気密シート材１４は、柱用気密シート材５を幅方向中央部分で二分割して、左部１４ａと右部１４ｂとを形成したものであり、分割した左部１４ａと右部１４ｂのそれぞれの上端部を気密テープ７で柱２に取り付けたものである。
このように柱用気密シート材５を二分割することで出隅部に沿って気密構造を容易に形成することが可能となる。さらに、分割部分を覆うように気密テープ７を貼り付けるようにしてもよい。 The airtight sheet material 14 for protruding corners is formed by dividing the airtight sheet material 5 for columns into two at the central portion in the width direction to form a left portion 14a and a right portion 14b, and the divided left portion 14a and right portion 14b. The upper end of each of the above is attached to the pillar 2 with an airtight tape 7.
By dividing the airtight sheet material 5 for columns into two in this way, it is possible to easily form an airtight structure along the protruding corners. Further, the airtight tape 7 may be attached so as to cover the divided portion.

＜変形例２＞
また、図１８に示すように、上側気密シート材４は、自然状態において平板状に形成されており、折り曲げ可能とするための溝状の折り目４ｄ，４ｅを有するものであってもよい。
このような構成であれば、上側気密シート材取付工程Ｓ４において、床パネル１０の側面１０ｂに対向する下側気密シート材３の上部３ｂと外壁パネル１２との間に、平板状態の上側気密シート材４を挿し込んだ状態で床パネル１０に墨打ちができる。このため、床パネル１０の墨打ちに合わせて内壁パネル１３の位置決めができる。そして、内壁パネル１３の位置決めをした後、床パネル１０の縁１０ｃの上面１０ａを段差部４ｃが覆う位置まで折り目４ｄを折り曲げて、上部４ｂが鉛直に向く位置まで折り目４ｅを折り曲げる。このようにして、段差部４ｃ上に内壁パネル１３を上部４ｂに沿うように取り付けることができるため、現場での施工作業を容易にすることができる。 <Modification 2>
Further, as shown in FIG. 18, the upper airtight sheet material 4 may be formed in a flat plate shape in a natural state and may have groove-shaped creases 4d and 4e for making it bendable.
With such a configuration, in the upper airtight sheet material attaching step S4, the upper airtight sheet in a flat plate state is sandwiched between the upper portion 3b of the lower airtight sheet material 3 facing the side surface 10b of the floor panel 10 and the outer wall panel 12. The floor panel 10 can be inked with the material 4 inserted. Therefore, the inner wall panel 13 can be positioned according to the marking of the floor panel 10. Then, after positioning the inner wall panel 13, the crease 4d is bent to a position where the step portion 4c covers the upper surface 10a of the edge 10c of the floor panel 10, and the crease 4e is bent to a position where the upper portion 4b faces vertically. In this way, the inner wall panel 13 can be mounted on the stepped portion 4c along the upper portion 4b, so that the construction work at the site can be facilitated.

なお、上記同様の折り目が、下側気密シート材３の屈曲部分に形成されていてもよい。下側気密シート材３については、下側気密シート材取付工程Ｓ２の前に、折り目を折り曲げるようにすればよい。具体的には、下側気密シート材３が断熱基礎１の立上り部１ａよりも屋内側から立上り部１ａの上端部１ａａの上方に渡って延在し、下側気密シート材３の上部３ｂが床パネル１０の側面１０ｂに対向するように、下側気密シート材３の折り目を折り曲げるようにすればよい。
このようにすることで、下側気密シート材３の取り付けに適した所定の形状にして、下側気密シート材３を所定位置に配することができる。
また、下側気密シート材３及び上側気密シート材４に折り目が形成されていることで、下側気密シート材３及び上側気密シート材４を平板状態で変形しづらい状態で保管ができ、薄く重ね合わせることができるため、収納性を高めることができる。 The same crease as described above may be formed at the bent portion of the lower airtight sheet material 3. Regarding the lower airtight sheet material 3, the crease may be bent before the lower airtight sheet material attaching step S2. Specifically, the lower airtight sheet material 3 extends from the indoor side to the upper end portion 1aa of the rising portion 1a from the rising portion 1a of the heat insulating foundation 1, and the upper portion 3b of the lower airtight sheet material 3 extends. The crease of the lower airtight sheet material 3 may be bent so as to face the side surface 10b of the floor panel 10.
By doing so, the lower airtight sheet material 3 can be arranged at a predetermined position in a predetermined shape suitable for attaching the lower airtight sheet material 3.
Further, since the lower airtight sheet material 3 and the upper airtight sheet material 4 are formed with creases, the lower airtight sheet material 3 and the upper airtight sheet material 4 can be stored in a flat plate state in a state where they are not easily deformed, and are thin. Since they can be stacked, the storability can be improved.

なお、下側気密シート材３と上側気密シート材４は、硬質樹脂から成ることで、自発的な変形を抑制できることで、周囲の部材との干渉を抑制できるため好ましい。特に、上側気密シート材４を、床パネル１０と外壁パネル１２との間に差し込む際に、上側気密シート材４が硬質であれば、その形状が安定するため、施工が容易となる。しかしながら、硬質であることに限定されず軟質の材料であってもよい。 Since the lower airtight sheet material 3 and the upper airtight sheet material 4 are made of a hard resin, spontaneous deformation can be suppressed, and interference with surrounding members can be suppressed, which is preferable. In particular, when the upper airtight sheet material 4 is inserted between the floor panel 10 and the outer wall panel 12, if the upper airtight sheet material 4 is hard, its shape is stable and construction is easy. However, the material is not limited to being hard and may be a soft material.

上記実施形態においては、内壁パネル１３を床パネル１０に取り付ける部位の周囲の気密性を高めるための気密シート取付方法及び気密構造について説明したが、本発明は、このような構成に限定されない。例えば、内壁パネル１３に限定されず、図示せぬ桟木を、床パネル１０を覆う上側気密シート材上に取り付けて、パネル状ではない内壁を取り付けるようにして、その取付部位の周囲の気密性を高めるようにしてもよい。 In the above embodiment, the airtight sheet attachment method and the airtight structure for increasing the airtightness around the portion where the inner wall panel 13 is attached to the floor panel 10 have been described, but the present invention is not limited to such a configuration. For example, not limited to the inner wall panel 13, a crosspiece (not shown) is attached on the upper airtight sheet material that covers the floor panel 10, and the inner wall that is not in the shape of a panel is attached so that the airtightness around the attachment portion is improved. You may try to increase it.

Ｈ 家屋（建物）
１ 断熱基礎
１ａ 立上り部
１ａａ 上端部
１ｂ 外側断熱材
１ｃ 内側断熱材
２ 柱（突出部位）
３ 下側気密シート材（気密シート、第１シート材）
３ａ 下部
３ｂ 上部（対向部）
３ｃ 段差部
４ 上側気密シート材（気密シート、第２シート材）
４ａ 下部（重なり部）
４ｂ 上部
４ｃ 段差部
４ｄ，４ｅ 折り目
５ 柱用気密シート材（気密シート、連結シート材）
５ａ 下側連結部
５ｂ ベース側水平部
５ｃ 上側連結部
５ｄ 外側立板部
５ｅ 中央側立板部
５ｆ 内壁側水平部
５ｇ 凹部
６ 入隅用気密シート材（気密シート、連結シート材）
６ａ 下部
６ｂ 上部
６ｃ 段差部
７ 気密テープ
８ 床パネル支持部材
９ 束
９ａ 柱部
９ｂ 載置板
１０ 床パネル
１０ａ 上面
１０ｂ 側面
１０ｃ 縁
１２ 外壁パネル
１３ 内壁パネル（内壁）
１４ 出隅用気密シート材（気密シート、連結シート材）
１４ａ 左部
１４ｂ 右部 H house (building)
1 Insulation foundation 1a Rising part 1aa Upper end 1b Outer insulation 1c Inner insulation 2 Pillars (protruding part)
3 Lower airtight sheet material (airtight sheet, first sheet material)
3a Lower part 3b Upper part (opposite part)
3c Step 4 Upper airtight sheet material (airtight sheet, second sheet material)
4a Lower part (overlapping part)
4b Upper part 4c Stepped part 4d, 4e Fold 5 Airtight sheet material for pillars (airtight sheet, connecting sheet material)
5a Lower connecting part 5b Base side horizontal part 5c Upper connecting part 5d Outer standing plate part 5e Central side standing plate 5f Inner wall side horizontal part 5g Recess 6 Airtight sheet material for inside corner (airtight sheet, connecting sheet material)
6a Lower 6b Upper 6c Step 7 Airtight tape 8 Floor panel support member 9 Bundle 9a Pillar 9b Mounting plate 10 Floor panel 10a Top 10b Side 10c Edge 12 Outer wall panel 13 Inner wall panel (inner wall)
14 Airtight sheet material for outside corners (airtight sheet, connecting sheet material)
14a left part 14b right part

Claims (7)

建物が備える断熱基礎の立上り部と床パネルとの間、及び該床パネルと内壁との間に気密シートを取り付ける気密シート取付方法であって、
第１シート材を、前記断熱基礎の前記立上り部よりも屋内側から前記立上り部の上方に渡って取り付ける第１シート材取付工程と、
該第１シート材取付工程の後、前記床パネルの側面が前記第１シート材の一部である対向部に対向するように、前記床パネルを取り付ける床パネル取付工程と、
該床パネル取付工程の後、第２シート材を、前記第１シート材の前記対向部に前記第２シート材の一部である重なり部を重ねつつ、前記床パネルの上面側に渡って取り付ける第２シート材取付工程と、
該第２シート材取付工程の後、前記第２シート材における前記床パネルの上面の少なくとも一部を覆う部位の上に前記内壁を取り付ける内壁取付工程と、
を備えることを特徴とする気密シート取付方法。 This is an airtight sheet mounting method for mounting an airtight sheet between the rising portion of the heat insulating foundation provided in the building and the floor panel, and between the floor panel and the inner wall.
The first sheet material attachment step of attaching the first sheet material from the indoor side to the upper part of the rising portion of the heat insulating foundation.
After the first sheet material mounting step, the floor panel mounting step of mounting the floor panel so that the side surface of the floor panel faces the facing portion which is a part of the first sheet material.
After the floor panel attaching step, the second sheet material is attached over the upper surface side of the floor panel while overlapping the overlapping portion which is a part of the second sheet material on the facing portion of the first sheet material. 2nd sheet material mounting process and
After the second sheet material mounting step, an inner wall mounting step of mounting the inner wall on a portion of the second sheet material that covers at least a part of the upper surface of the floor panel,
An airtight seat mounting method characterized by being provided with. 前記第１シート材取付工程の前において、前記第１シート材が前記断熱基礎の前記立上り部よりも屋内側から前記立上り部の上端の上方に渡って延在し、前記第１シート材の前記対向部が前記床パネルの側面に対向するように前記第１シート材を折り曲げることを特徴とする請求項１に記載の気密シート取付方法。 Before the first sheet material attaching step, the first sheet material extends from the indoor side of the rising portion of the heat insulating foundation to above the upper end of the rising portion, and the first sheet material said. airtight seat mounting method according to claim 1, facing portion, characterized in that the folding the first sheet material so as to face the side surface of the floor panel. 前記第２シート材取付工程において、前記第２シート材が、前記重なり部で前記対向部に重なりつつ、前記床パネルの上面の少なくとも一部を覆うように前記第２シート材を折り曲げることを特徴とする請求項１又は２に記載の気密シート取付方法。 In the second sheet material attaching step, the second sheet material is bent so as to cover at least a part of the upper surface of the floor panel while overlapping the facing portion at the overlapping portion. The airtight sheet mounting method according to claim 1 or 2. 建物が備える断熱基礎の立上り部と床パネルとの間、及び該床パネルと内壁との間に形成される気密構造であって、
前記断熱基礎の前記立上り部よりも屋内側から前記立上り部の上端の上方に渡って取り付けられる部材であり、前記床パネルの側面に対向する対向部を有する第１シート材と、
前記対向部に重なる重なり部を有し、前記床パネルの上面側に渡って取り付けられる第２シート材と、から構成され、
前記第２シート材における前記床パネルの上面の少なくとも一部を覆う部位の上に、前記内壁が取り付けられていることを特徴とする気密構造。 An airtight structure formed between the rising portion of the heat insulating foundation provided in the building and the floor panel, and between the floor panel and the inner wall.
A first sheet material which is a member attached from the indoor side of the heat insulating foundation to above the upper end of the rising portion and has an facing portion facing the side surface of the floor panel.
It is composed of a second sheet material having an overlapping portion that overlaps the facing portion and is attached over the upper surface side of the floor panel.
An airtight structure characterized in that the inner wall is mounted on a portion of the second sheet material that covers at least a part of the upper surface of the floor panel. 前記第１シート材及び前記第２シート材が前記建物に取り付けられた状態において、前記第１シート材の前記対向部と前記第２シート材の前記重なり部は、鉛直方向に延在しており、前記建物に設けられた前記床パネルの側面に対向する位置で連結されていることを特徴とする請求項４に記載の気密構造。 In a state where the first sheet material and the second sheet material are attached to the building, the facing portion of the first sheet material and the overlapping portion of the second sheet material extend in the vertical direction. The airtight structure according to claim 4 , wherein the floor panel provided in the building is connected at a position facing the side surface of the floor panel. 前記第１シート材及び前記第２シート材のいずれか一方には、屈曲部分に折り目が形成されていることを特徴とする請求項４又は５に記載の気密構造。 The airtight structure according to claim 4 or 5 , wherein a crease is formed in a bent portion of either the first sheet material or the second sheet material. 前記第２シート材は、前記第１シート材よりも硬質の材料から成ることを特徴とする請求項４乃至６のいずれか一項に記載の気密構造。 The airtight structure according to any one of claims 4 to 6 , wherein the second sheet material is made of a material harder than the first sheet material.
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