JP2013147856A - Waterproof sheet and method for installing waterproof sheet - Google Patents

Waterproof sheet and method for installing waterproof sheet Download PDF

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JP2013147856A
JP2013147856A JP2012009196A JP2012009196A JP2013147856A JP 2013147856 A JP2013147856 A JP 2013147856A JP 2012009196 A JP2012009196 A JP 2012009196A JP 2012009196 A JP2012009196 A JP 2012009196A JP 2013147856 A JP2013147856 A JP 2013147856A
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waterproof sheet
surface side
waterproof
modified asphalt
layer
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Hirofumi Fukumura
弘文 福村
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YAMAKEN CO Ltd
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YAMAKEN CO Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a waterproof sheet which can be constructed in a short period of time without impairing water tightness and suppress a construction cost, and to provide a method for installing the waterproof sheet.SOLUTION: The method allows a waterproof sheet 1 to be installed in a short period of time because the method bonds the waterproof sheet 1 to an object at an adhesive part 6 without heating a waterproof sheet body 2. When the waterproof sheets 1 are bonded, the method heats and melts a surface side modified asphalt layer 22 in a surface side bonding region 22a and a rear face side modified asphalt layer 23 in a rear face side bonding region 5a to bond them to each other at a melted portion. Accordingly, both of the waterproof sheets 1 are closely bonded and can secure water tightness between themselves.

Description

本発明は物体に接着する防水シート本体を備える防水シート及び該防水シートを物体に接着させる防水シートの設置方法に関する。   The present invention relates to a waterproof sheet including a waterproof sheet body that adheres to an object, and a method of installing the waterproof sheet that adheres the waterproof sheet to an object.

建築物の防水性を高める場合、一般的には、建築物の屋上に防水シートを敷設する。特許文献１及び２には、改質アスファルトを備えるトーチ式の防水シートを使用する工法が提案されている。作業者は防水シートの裏面をトーチによって加熱溶融させて、防水シートを屋上に貼着する。トーチ式の防水シートは、防水シート同士を接合する場合、接合部分を加熱して改質アスファルトを溶融して接合するため、防水シート同士が一体化し、水密性が高い。   In order to enhance the waterproof property of a building, a waterproof sheet is generally laid on the roof of the building. Patent Documents 1 and 2 propose a construction method using a torch type waterproof sheet provided with modified asphalt. The worker heats and melts the back surface of the waterproof sheet with a torch, and sticks the waterproof sheet on the roof. In the case of joining the waterproof sheets, the torch-type waterproof sheets are joined to each other by melting the modified asphalt by heating the joined portions, so that the waterproof sheets are integrated with each other and have high water tightness.

しかしトーチ式の防水シートは、改質アスファルトが溶融するまでトーチで加熱しなければならず、作業に長時間を要する。またトーチで加熱する作業者はトーチを横方向に往復させながら、改質アスファルトを設けたシートの裏面を加熱するため、中央部分は十分に加熱されるものの、縁部分は往復動作の折り返し部分になるため、縁部分の加熱時間は中央部分に比べて短くなりやすく、改質アスファルトが十分に溶解しない場合がある。そのため防水シート同士の接合が不十分となり、水密性が保てない場合が多々見受けられる。また作業者の技量によっては加熱ムラが生じ、屋上等への接着が不均一となる場合がある。
均一な接着を実現すべく、トーチ式の防水シートを敷設する前段階として、自着式の下貼りシートを敷設し、その後トーチ式の防水シートを敷設することも提案されているが、複数のシートを敷設するため、作業に長時間を要する上、施工費用も嵩む。 However, the torch-type waterproof sheet must be heated with the torch until the modified asphalt is melted, and the work takes a long time. In addition, the operator who heats with the torch heats the back side of the sheet with the modified asphalt while reciprocating the torch in the horizontal direction, so the center part is heated sufficiently, but the edge part is the folded part of the reciprocating operation. Therefore, the heating time of the edge portion tends to be shorter than that of the central portion, and the modified asphalt may not be sufficiently dissolved. Therefore, joining of waterproof sheets becomes insufficient, and there are many cases where watertightness cannot be maintained. In addition, depending on the skill of the operator, uneven heating may occur, and adhesion to the rooftop or the like may be uneven.
In order to achieve uniform adhesion, it has also been proposed to lay a self-attaching undercoat sheet as a pre-stage of laying a torch type waterproof sheet, and then lay a torch type waterproof sheet. Since the sheet is laid, the work takes a long time and the construction cost increases.

特許第４０３０１８５号公報Japanese Patent No. 4030185 特許第２９４８６８９号公報Japanese Patent No. 2948689

これに対し、自着式の防水シートを屋根等に敷設することが提案されている。この防水シートは裏面に常温でも粘着性を有する粘着層をストライプ状に設けてあり、該粘着層を屋根等に接着させて、防水シートを敷設する。トーチ式に比べて作業を短時間で終了させることができる上、粘着力が作業者の技量に左右されないため、屋根等に均一に接着させることができる。しかし防水シート同士の接合は、粘着層の粘着力だけでは不十分になりやすく、水密性が担保できない場合がある。水密性を確実に担保するためには、接合補助剤を防水シートの接合部分に別途設けなければならず、作業の長時間化及び施工費用の高騰を招来する。   On the other hand, it has been proposed to install a self-adhesive waterproof sheet on a roof or the like. This waterproof sheet is provided with an adhesive layer having adhesiveness on the back surface even at room temperature in a stripe shape, and the waterproof sheet is laid by adhering the adhesive layer to a roof or the like. Compared to the torch type, the work can be completed in a short time, and the adhesive force is not affected by the skill of the operator, so that the work can be uniformly adhered to the roof or the like. However, joining of waterproof sheets tends to be insufficient only with the adhesive force of the adhesive layer, and water tightness may not be ensured. In order to ensure the watertightness, it is necessary to separately provide a joining aid at the joint portion of the waterproof sheet, which leads to a long working time and a high construction cost.

本発明は斯かる事情に鑑みてなされたものであり、水密性を損なうことなく、短時間で施工することができ、また施工費用を抑制することができる防水シート及び防水シートの設置方法を提供することを目的とする。   The present invention has been made in view of such circumstances, and provides a waterproof sheet and a method for installing the waterproof sheet that can be constructed in a short time without impairing watertightness and can reduce construction costs. The purpose is to do.

本発明に係る防水シートは加熱溶融によって物体に接着する防水シート本体を備える防水シートにおいて、前記防水シート本体の一面側にて縁部分の少なくとも一部以外に粘着部が設けてあることを特徴とする。   The waterproof sheet according to the present invention is provided with a waterproof sheet body that adheres to an object by heating and melting, wherein an adhesive portion is provided in addition to at least a part of an edge portion on one surface side of the waterproof sheet body. To do.

本発明においては、防水シート本体を加熱させることなく、粘着部によって防水シートを物体に接着させる。また防水シート同士を接合する場合に、粘着部を設けていない縁部分を加熱溶融させて、溶融した部分にて互いを接合する。   In the present invention, the waterproof sheet is adhered to the object by the adhesive portion without heating the waterproof sheet body. Moreover, when joining waterproof sheets, the edge part which has not provided the adhesion part is heat-melted, and it mutually joins in the fuse | melted part.

本発明に係る防水シートは前記粘着部複数が前記一面側に離間して並設してあることを特徴とする。   The waterproof sheet according to the present invention is characterized in that a plurality of the adhesive portions are arranged apart from each other on the one surface side.

本発明においては帯状の粘着部を防水シート本体の一面側に離間して並設し、防水シートと物体との間に気体が通流する通気路を確保する。   In the present invention, the belt-like adhesive portions are arranged side by side on one side of the waterproof sheet main body, and a ventilation path through which gas flows is ensured between the waterproof sheet and the object.

本発明に係る防水シートは前記防水シート本体の他面側にて縁部分の少なくとも一部以外に装飾部が設けてあることを特徴とする。   The waterproof sheet according to the present invention is characterized in that a decorative portion is provided in addition to at least a part of the edge portion on the other surface side of the waterproof sheet main body.

本発明においては装飾部によって美感性が向上し、また紫外線等を遮断して防水シートの劣化を抑制する。縁部分の少なくとも一部に装飾部を設けないので、装飾部を設けていない他面側の縁部分が加熱によって容易に溶融し、防水シート同士の接合が促進される。   In the present invention, the decorative part improves the aesthetics and blocks ultraviolet rays and the like to suppress the deterioration of the waterproof sheet. Since the decorative portion is not provided on at least a part of the edge portion, the edge portion on the other surface side where the decorative portion is not provided is easily melted by heating, and the joining of the waterproof sheets is promoted.

本発明に係る防水シートは前記防水シート本体は、繊維層と、該繊維層の両面に形成された改質アスファルト層とを有することを特徴とする。   The waterproof sheet according to the present invention is characterized in that the waterproof sheet body includes a fiber layer and a modified asphalt layer formed on both surfaces of the fiber layer.

本発明においては繊維層の両面に改質アスファルト層を形成することによって、防水及び加熱溶融による両面での接着を実現する。   In the present invention, by forming the modified asphalt layer on both sides of the fiber layer, adhesion on both sides by waterproofing and heat melting is realized.

本発明に係る防水シートの設置方法は、前述したいずれか一つに記載の防水シートを物体に被覆させる防水シートの設置方法であって、前記粘着部によって前記防水シートを物体に接着させ、前記防水シート本体の一面側における前記縁部分を加熱溶融し、前記一面側における溶融した部分を物体に接着させることを特徴とする。   A method for installing a waterproof sheet according to the present invention is a method for installing a waterproof sheet for covering an object with the waterproof sheet according to any one of the foregoing, wherein the waterproof sheet is adhered to an object by the adhesive portion, The edge portion on one surface side of the waterproof sheet body is heated and melted, and the melted portion on the one surface side is adhered to an object.

本発明においては、防水シート本体を加熱させることなく、粘着部によって防水シートを物体に接着させる。また防水シート同士を接合する場合に、防水シートの縁部分を加熱溶融させて、溶融した部分にて互いを接合する。   In the present invention, the waterproof sheet is adhered to the object by the adhesive portion without heating the waterproof sheet body. Moreover, when joining waterproof sheets, the edge part of a waterproof sheet is heat-melted, and it mutually joins in the fuse | melted part.

本発明に係る防水シート及び防水シートの設置方法にあっては、防水シート本体を加熱することなく、粘着部によって防水シートを物体に接着させるので、短時間で防水シートを設置することができる。また防水シート同士を接合する場合に、防水シートの縁部分を加熱溶融させて、溶融した部分にて互いを接合するので、両者は密着し、水密性を確保することができる。   In the waterproof sheet and the installation method of the waterproof sheet according to the present invention, the waterproof sheet is adhered to the object by the adhesive portion without heating the waterproof sheet body, so that the waterproof sheet can be installed in a short time. Moreover, when joining waterproof sheets, since the edge part of a waterproof sheet is heat-melted and it mutually joins in the fuse | melted part, both can closely_contact | adhere and can ensure watertightness.

実施の形態１に係る防水シートの構成を略示する断面図である。1 is a cross-sectional view schematically showing a configuration of a waterproof sheet according to Embodiment 1. FIG. 剥離紙を剥がした防水シートの裏面を略示する裏面図である。It is a back view which briefly shows the back surface of the waterproof sheet which peeled off the release paper. 防水シートの設置方法を説明する説明図である。It is explanatory drawing explaining the installation method of a waterproof sheet. 実施の形態２に係る防水シートの構成を略示する断面図である。It is sectional drawing which shows schematically the structure of the waterproof sheet which concerns on Embodiment 2. FIG.

（実施の形態１）
以下本発明を実施の形態１に係る防水シートを示す図面に基づいて詳述する。図１は防水シートの構成を略示する断面図、図２は剥離紙を剥がした防水シートの裏面を略示する裏面図である。 (Embodiment 1)
Hereinafter, the present invention will be described in detail with reference to the drawings showing a waterproof sheet according to Embodiment 1. FIG. 1 is a cross-sectional view schematically showing the structure of the waterproof sheet, and FIG. 2 is a back view schematically showing the back surface of the waterproof sheet with the release paper peeled off.

図１に示すように、防水シート１は、繊維層２１、表面側改質アスファルト層２２及び裏面側改質アスファルト層２３からなる防水シート本体２を備える。繊維層２１は合成繊維及びガラスクロス等からなる。繊維層２１の一面（表面）に表面側改質アスファルト層２２が設けてある。表面側改質アスファルト層２２はアスファルトにエラストマーを混合した改質アスファルトからなり、溶融した状態の改質アスファルトを繊維層２１の一面に塗布して形成される。表面側改質アスファルト層２２上には、砂等からなる装飾部３が設けてある。   As shown in FIG. 1, the waterproof sheet 1 includes a waterproof sheet body 2 including a fiber layer 21, a front surface side modified asphalt layer 22, and a back surface side modified asphalt layer 23. The fiber layer 21 is made of synthetic fiber, glass cloth, or the like. A surface side modified asphalt layer 22 is provided on one surface (surface) of the fiber layer 21. The surface-side modified asphalt layer 22 is made of modified asphalt in which an elastomer is mixed with asphalt, and is formed by applying the modified asphalt in a molten state to one surface of the fiber layer 21. On the surface side modified asphalt layer 22, a decorative portion 3 made of sand or the like is provided.

図１に示すように、装飾部３は表面側改質アスファルト層２２の縁部分（防水シート１の一縁部分）には設けられていない（以下表面側改質アスファルト層２２における装飾部３が設けられていない部分を表面側接着領域２２ａという）。表面側接着領域２２ａには、加熱によって容易に溶解する溶解層４が設けてある。溶解層４は、例えば熱可塑性合成樹脂フィルムからなる。   As shown in FIG. 1, the decorative portion 3 is not provided on the edge portion (one edge portion of the waterproof sheet 1) of the surface side modified asphalt layer 22 (hereinafter, the decorative portion 3 in the surface side modified asphalt layer 22 is not provided). The portion that is not provided is referred to as a front-side adhesion region 22a). The dissolution layer 4 that is easily dissolved by heating is provided in the surface-side adhesion region 22a. The melt layer 4 is made of, for example, a thermoplastic synthetic resin film.

繊維層２１の他面（裏面）に裏面側改質アスファルト層２３が設けてある。裏面側改質アスファルト層２３はアスファルトにエラストマーを混合した改質アスファルトからなり、溶融した状態の改質アスファルトを繊維層２１の他面に塗布して形成される。裏面側改質アスファルト層２３には、溶解層５が設けてある。溶解層５は、例えば熱可塑性合成樹脂フィルムからなる。   A back side modified asphalt layer 23 is provided on the other side (back side) of the fiber layer 21. The back-side modified asphalt layer 23 is made of modified asphalt obtained by mixing an elastomer with asphalt, and is formed by applying the modified asphalt in a molten state to the other surface of the fiber layer 21. The dissolved layer 5 is provided on the back side modified asphalt layer 23. The melt layer 5 is made of, for example, a thermoplastic synthetic resin film.

図２に示すように、溶解層５には矩形の粘着部６が適当な間隔を空けて複数並設されている。粘着部６、６、・・・、６は、縦方向及び横方向に少しずつ偏倚するように、縦方向及び横方向に並んでいる。図１及び図２に示すように、粘着部６、６、・・・、６間の空間によって、気体が通流する通気路６０が網目状に形成されている。粘着部６はゴムアスファルトからなる。なお粘着部６は対象物に十分に密着する粘着性を備えていればよく、ゴムアスファルトに限定されない。   As shown in FIG. 2, a plurality of rectangular adhesive portions 6 are arranged in parallel at an appropriate interval in the dissolution layer 5. The adhesive portions 6, 6,..., 6 are arranged in the vertical direction and the horizontal direction so as to be slightly shifted in the vertical direction and the horizontal direction. As shown in FIG.1 and FIG.2, the ventilation path 60 through which gas flows is formed in mesh shape by the space between adhesion part 6,6, ..., 6. The adhesive part 6 is made of rubber asphalt. In addition, the adhesion part 6 should just be equipped with the adhesiveness which adhere | attaches sufficiently on a target object, and is not limited to rubber asphalt.

粘着部６は、溶解層５において、前記表面側接着領域２２ａと反対側に位置する縁部分（防水シート１の他縁部分）に設けられていない（以下溶解層５における粘着部６が設けられていない部分を裏面側接着領域５ａという）。なお粘着部６は互いに離間していればよく、その形状は矩形に限定されない。例えば円形であってもよい。   The adhesion part 6 is not provided in the edge part (other edge part of the waterproof sheet 1) located in the melt | dissolution layer 5 on the opposite side to the said surface side adhesion area | region 22a (Hereafter, the adhesion part 6 in the melt | dissolution layer 5 is provided. The part which is not called the back surface side adhesion region 5a). In addition, the adhesion parts 6 should just be spaced apart, and the shape is not limited to a rectangle. For example, it may be circular.

複数の粘着部６全体を覆うように、粘着部６には剥離紙７が設けてある。剥離紙７は、例えばポリエステルフィルムからなり、施工前に粘着部６が物体に接着することを防止する。なお剥離紙７は、粘着部６の物体への接着を防止することができるものであればよく、ポリエステルフィルムに限定されない。   A release paper 7 is provided on the adhesive portion 6 so as to cover the entire plurality of adhesive portions 6. The release paper 7 is made of a polyester film, for example, and prevents the adhesive portion 6 from adhering to an object before construction. The release paper 7 is not limited to a polyester film as long as it can prevent adhesion of the adhesive portion 6 to an object.

次に防水シート１の設置方法について説明する。図３は防水シート１の設置方法を説明する説明図である。
まず一の防水シート１の剥離紙７を接着部から剥がし、防水工事を施工する対象物（例えば屋上）に接着部を接着させる。このとき表面側接着領域２２ａを対象物の縁部分に沿わせて、一の防水シート１を対象物に貼着させる。次に他の防水シート１の剥離紙７を接着部から剥がし、一の防水シート１の裏面側接着領域５ａの下側に表面側接着領域２２ａが位置するように、他の防水シート１の接着部を対象物に接着させる。 Next, a method for installing the waterproof sheet 1 will be described. FIG. 3 is an explanatory diagram for explaining a method of installing the waterproof sheet 1.
First, the release paper 7 of the one waterproof sheet 1 is peeled off from the bonding portion, and the bonding portion is bonded to an object to be waterproofed (for example, a rooftop). At this time, the one waterproof sheet 1 is adhered to the object along the surface-side adhesive region 22a along the edge of the object. Next, the release paper 7 of the other waterproof sheet 1 is peeled off from the adhesive portion, and the other waterproof sheet 1 is bonded so that the surface-side adhesive region 22a is positioned below the back surface-side adhesive region 5a of the one waterproof sheet 1. Glue the part to the object.

そして一の防水シート１における裏面側接着領域５ａ及び他の防水シート１における表面側接着領域２２ａをトーチ又はバーナ等で加熱し、溶解層４及び表面側改質アスファルト層２２、並びに溶解層５及び裏面側改質アスファルト層２３を溶融させ、表面側改質アスファルト層２２及び裏面側改質アスファルト層２３を圧着して接合する。   And the back surface side adhesion area | region 5a in one waterproof sheet 1 and the surface side adhesion area | region 22a in the other waterproof sheet 1 are heated with a torch, a burner, etc., the dissolved layer 4, the surface side modified asphalt layer 22, and the dissolved layer 5 and The back surface side modified asphalt layer 23 is melted, and the surface side modified asphalt layer 22 and the back surface side modified asphalt layer 23 are bonded by pressure bonding.

また他の防水シート１における裏面側接着領域５ａを加熱して溶融させ、対象物に接着させる。また表面側接着領域２２ａ側における一の防水シート１の縁部分を加熱し、表面側改質アスファルト層２２及び裏面側改質アスファルト層２３を溶融させて、一の防水シート１と対象物との隙間を埋める。なお必要に応じて、表面側接着領域２２ａ側における一の防水シート１の縁部分に粘着シートを別途設けて、一の防水シート１と対象物との隙間を確実に埋めてもよい。   Moreover, the back surface side adhesion | attachment area | region 5a in the other waterproof sheet 1 is heated and fuse | melted, and it adheres to a target object. Moreover, the edge part of the one waterproof sheet 1 in the surface side adhesion | attachment area | region 22a side is heated, the surface side modified asphalt layer 22 and the back surface side modified asphalt layer 23 are melted, and the one waterproof sheet 1 and a target object are made. Fill the gap. If necessary, a pressure-sensitive adhesive sheet may be separately provided on the edge portion of the one waterproof sheet 1 on the surface-side adhesive region 22a side to reliably fill the gap between the one waterproof sheet 1 and the object.

実施の形態１に係る防水シート１及び防水シート１の設置方法にあっては、防水シート本体２を加熱させることなく、粘着部６によって防水シート１を対象物に接着させるので、短時間で施工を実施することができる。また防水シート１同士を接合する場合に、表面側接着領域２２ａにおける表面側改質アスファルト層２２及び裏面側接着領域５ａにおける裏面側改質アスファルト層２３を加熱溶融させて、溶融した部分にて互いを接合するので、両者は密着し、水密性を確保することができる。   In the waterproof sheet 1 and the installation method of the waterproof sheet 1 according to the first embodiment, the waterproof sheet 1 is bonded to the object by the adhesive portion 6 without heating the waterproof sheet body 2, so the construction can be performed in a short time. Can be implemented. Further, when the waterproof sheets 1 are joined to each other, the front surface side modified asphalt layer 22 in the front surface side adhesive region 22a and the rear surface side modified asphalt layer 23 in the rear surface side adhesive region 5a are heated and melted to each other at the melted portions. Are joined together, and water tightness can be secured.

また帯状の粘着部６を防水シート本体２の一面側に間隔を空けて並設し、防水シート１と対象物との間に気体が通流する通気路６０を設けているので、対象物に含まれる水分が気化した場合に、気化した水蒸気は通気路６０を通流して外部に排出され、防水シート１が膨れ上がることを防止することができる。   In addition, the belt-like adhesive portion 6 is arranged in parallel on the one surface side of the waterproof sheet main body 2 with an interval, and the ventilation path 60 through which gas flows between the waterproof sheet 1 and the object is provided. When the contained moisture is vaporized, the vaporized water vapor flows through the ventilation path 60 and is discharged to the outside, and the waterproof sheet 1 can be prevented from swelling.

また装飾部３によって美感性が向上し、紫外線等を遮断して防水シート１の劣化を抑制することができる。また表面側接着領域２２ａに装飾部３を設けないので、一面側の縁部分が加熱によって容易に溶融し、防水シート１同士の接合が促進される。また改質アスファルト層を防水シート本体２に使用することによって、防水及び加熱溶融による接着を実現することができる。   Moreover, the aesthetics can be improved by the decorative portion 3, and the deterioration of the waterproof sheet 1 can be suppressed by blocking ultraviolet rays or the like. Moreover, since the decoration part 3 is not provided in the surface side adhesion | attachment area | region 22a, the edge part of the one surface side fuse | melts easily by heating, and joining of the waterproof sheets 1 is accelerated | stimulated. Further, by using the modified asphalt layer for the waterproof sheet body 2, waterproofing and adhesion by heating and melting can be realized.

防水シートを設置する場合、従来であれば通気層を有する下張りのシートを設置した後、防水層を有する上張りのシートを下張りのシートに重畳させていた。換言すれば少なくとも２枚のシートを設置する必要があったが、実施の形態１に係る防水シートは１枚のシートで防水性及び通気性を発揮するため、従来に比べて工期の短縮及び工事費の削減を図ることができる。また防水シート同士の接合部分に接合補助剤を別途設ける必要もないので、従来に比べて工期の短縮及び工事費の削減を図ることができる。   In the case of installing a waterproof sheet, conventionally, after installing a lower sheet having a ventilation layer, an upper sheet having a waterproof layer is superimposed on the lower sheet. In other words, it was necessary to install at least two sheets. However, since the waterproof sheet according to Embodiment 1 exhibits waterproofness and air permeability with a single sheet, the construction period can be shortened and the construction work can be shortened compared to the conventional one. Costs can be reduced. Moreover, since it is not necessary to separately provide a joining auxiliary agent at the joint portion between the waterproof sheets, the construction period can be shortened and the construction cost can be reduced as compared with the conventional case.

なお実施の形態１において表面側接着領域２２ａ（装飾部３を設けていない領域）が存在するが、表面側改質アスファルト層２２上全体に装飾部３を設け、表面側接着領域２２ａを設けない構成としてもよい。この場合、防水シート１、１同士の接着は、一の防水シート１における溶融させた裏面側接着領域５ａを、他の防水シート１における装飾部３に圧着して行う。   In the first embodiment, the surface-side adhesion region 22a (the region where the decoration portion 3 is not provided) exists, but the decoration portion 3 is provided on the entire surface-side modified asphalt layer 22, and the surface-side adhesion region 22a is not provided. It is good also as a structure. In this case, the waterproof sheets 1, 1 are bonded to each other by pressing the melted back surface side adhesive region 5 a in one waterproof sheet 1 to the decorative portion 3 in the other waterproof sheet 1.

（実施の形態２）
以下本発明を実施の形態２に係る図面に基づいて詳述する。図４は防水シート１の構成を略示する断面図である。
図４に示すように、裏面側接着領域５ａを残して、溶解層５に粘着部１６が全体的に設けてある。そのため防水シート１の粘着力を向上させることができる。なお実施の形態２に係る防水シート１の構成の内、実施の形態１と同様な構成については同じ符号を付し、その詳細な説明を省略する。 (Embodiment 2)
Hereinafter, the present invention will be described in detail with reference to the drawings according to Embodiment 2. FIG. 4 is a cross-sectional view schematically showing the configuration of the waterproof sheet 1.
As shown in FIG. 4, the adhesive portion 16 is entirely provided on the dissolved layer 5, leaving the back surface side adhesion region 5 a. Therefore, the adhesive strength of the waterproof sheet 1 can be improved. In addition, the same code | symbol is attached | subjected about the structure similar to Embodiment 1 among the structures of the waterproof sheet 1 which concerns on Embodiment 2, and the detailed description is abbreviate | omitted.

以上説明した実施の形態は本発明の例示であり、本発明は特許請求の範囲に記載された事項及び特許請求の範囲の記載に基づいて定められる範囲内において種々変更した形態で実施することができる。   The embodiment described above is an exemplification of the present invention, and the present invention can be implemented in various modified forms within the scope defined by the matters described in the claims and the description of the claims. it can.

１ 防水シート
２ 防水シート本体
２１ 繊維層
２２ 表面側改質アスファルト層
２２ａ 表面側接着領域
２３ 裏面側改質アスファルト層
３ 装飾部
４、５ 溶解層
５ａ 裏面側接着領域
６、１６ 粘着部
７ 剥離紙
６０ 通気路 DESCRIPTION OF SYMBOLS 1 Waterproof sheet 2 Waterproof sheet main body 21 Fiber layer 22 Front surface side modified asphalt layer 22a Front surface side adhesion area 23 Back surface side modified asphalt layer 3 Decoration part 4, 5 Melting layer 5a Back surface side adhesion area 6, 16 Adhesive part 7 Release paper 60 Airway

本発明に係る防水シートは、加熱溶融によって物体に接着する防水シート本体を備える防水シートにおいて、前記防水シート本体は、繊維層と、該繊維層の両面に形成された改質アスファルト層とを有し、各改質アスファルト層それぞれにフィルム状の溶解層を設けてあり、一方の溶解層に複数の粘着部が縦方向及び横方向に離間させて並設してあり、前記粘着部の間に気体が通流する通気路が網目状に形成され、前記通気路を通流した気体が外部に排出されるようにしてあり、他方の溶解層にて、前記防水シート本体の一縁部分以外に装飾部が設けてあり、前記一方の溶解層にて、前記一縁部分の反対側に位置する前記防水シート本体の他縁部分に前記粘着部を設けていないことを特徴とする。 Waterproof sheet according to the present invention is a waterproof sheet comprising a waterproof sheet body to adhere to the object by heating and melting, the waterproof sheet body is used, the number and the fiber layer, formed on both sides of the fiber layer and a modified asphalt layer Each of the modified asphalt layers is provided with a film-like dissolved layer, and a plurality of adhesive portions are arranged in parallel in the longitudinal direction and the lateral direction in one of the dissolved layers. The air passage through which the gas flows is formed in a mesh shape, and the gas that has passed through the air passage is discharged to the outside. In the other dissolved layer, other than one edge portion of the waterproof sheet body A decorative portion is provided, and the adhesive portion is not provided in the other edge portion of the waterproof sheet main body located on the opposite side of the one edge portion in the one dissolved layer .

本発明に係る防水シートの設置方法は、前述した防水シートを物体に被覆させる防水シートの設置方法であって、前記粘着部によって前記防水シートを物体に接着させ、前記一方の溶解層側における前記他縁部分を加熱溶融し、前記一方の溶解層側における溶融した部分を物体に接着させることを特徴とする。 Installation tarpaulin according to the present invention, there is provided a method of installing a waterproof sheet for covering the waterproof sheet described above the object, adhered to an object the waterproof sheet by the adhesive portion, the one dissolution layer side The other edge portion is heated and melted, and the melted portion on the one dissolved layer side is adhered to an object.

Claims (5)

加熱溶融によって物体に接着する防水シート本体を備える防水シートにおいて、
前記防水シート本体の一面側にて縁部分の少なくとも一部以外に粘着部が設けてあること
を特徴とする防水シート。 In a waterproof sheet comprising a waterproof sheet body that adheres to an object by heating and melting,
A waterproof sheet, wherein an adhesive portion is provided on at least one part of the edge portion on one side of the waterproof sheet body. 前記粘着部複数が前記一面側に離間して並設してあること
を特徴とする請求項１に記載の防水シート。 The waterproof sheet according to claim 1, wherein a plurality of the adhesive portions are separated from each other on the one surface side. 前記防水シート本体の他面側にて縁部分の少なくとも一部以外に装飾部が設けてあること
を特徴とする請求項１又は２に記載の防水シート。 3. The waterproof sheet according to claim 1, wherein a decorative portion is provided in addition to at least a part of the edge portion on the other surface side of the waterproof sheet main body. 前記防水シート本体は、
繊維層と、
該繊維層の両面に形成された改質アスファルト層とを有すること
を特徴とする請求項１から３のいずれか一つに記載の防水シート。 The tarpaulin body is
A fiber layer;
The waterproof sheet according to any one of claims 1 to 3, further comprising a modified asphalt layer formed on both surfaces of the fiber layer. 請求項１から４のいずれか一つに記載の防水シートを物体に被覆させる防水シートの設置方法であって、
前記粘着部によって前記防水シートを物体に接着させ、
前記防水シート本体の一面側における前記縁部分を加熱溶融し、
前記一面側における溶融した部分を物体に接着させること
を特徴とする防水シートの設置方法。 A method of installing a waterproof sheet for covering an object with the waterproof sheet according to any one of claims 1 to 4,
Adhering the waterproof sheet to an object by the adhesive part,
The edge portion on one side of the waterproof sheet body is heated and melted,
A method for installing a waterproof sheet, wherein the melted portion on the one surface side is adhered to an object.
JP2012009196A 2012-01-19 2012-01-19 Waterproof sheet and method for installing waterproof sheet Pending JP2013147856A (en)

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