JP2015151761A - Waterproof layer remodeling method - Google Patents
Waterproof layer remodeling method Download PDFInfo
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- JP2015151761A JP2015151761A JP2014026537A JP2014026537A JP2015151761A JP 2015151761 A JP2015151761 A JP 2015151761A JP 2014026537 A JP2014026537 A JP 2014026537A JP 2014026537 A JP2014026537 A JP 2014026537A JP 2015151761 A JP2015151761 A JP 2015151761A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000007634 remodeling Methods 0.000 title abstract 2
- 239000010410 layer Substances 0.000 claims abstract description 73
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 52
- 239000010959 steel Substances 0.000 claims abstract description 52
- 230000002093 peripheral effect Effects 0.000 claims abstract description 14
- 239000012790 adhesive layer Substances 0.000 claims abstract description 11
- 239000011247 coating layer Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 4
- 239000004570 mortar (masonry) Substances 0.000 abstract description 13
- 239000000758 substrate Substances 0.000 abstract 2
- 230000001681 protective effect Effects 0.000 description 10
- 239000003566 sealing material Substances 0.000 description 7
- 229910052573 porcelain Inorganic materials 0.000 description 6
- 239000004567 concrete Substances 0.000 description 4
- 239000010426 asphalt Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000004078 waterproofing Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 239000003818 cinder Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000009418 renovation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011381 foam concrete Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
Description
本発明は、既存防水層を改修する防水層改修方法に関する。 The present invention relates to a waterproof layer repair method for repairing an existing waterproof layer.
既存防水層の上に、シンダーコンクリート（アスファルト防水層の保護のための押さえコンクリート）やタイル（下地モルタルを含む）等の既存硬質層を有する外部床がある。この外部床の既存防水層の改修工事を行う場合、これらを撤去した後、新しい防水層を施工している。 On the existing waterproof layer, there is an external floor having an existing hard layer such as cinder concrete (pressing concrete for protecting an asphalt waterproof layer) or tile (including ground mortar). When renovating the existing waterproof layer on the external floor, after removing these, a new waterproof layer is constructed.
ここで、特許文献１には、防水層となる防水シートの上に更に防水シートを接合する技術について記載されている。 Here, Patent Document 1 describes a technique for further joining a waterproof sheet on a waterproof sheet serving as a waterproof layer.
既存防水層の上に既存硬質層を有する外部床に対し、防水層の改修工事を行う場合、既存防水層や既存硬質層を撤去した後、新たな防水層を施工する必要がある。このため、工事が長期化する等の問題がある。また、特許文献１には、防水シートを敷設する技術について記載されているが、防水層の上に他の層が存在する外部床には適用できない。 When renovating a waterproof layer on an external floor having an existing hard layer on an existing waterproof layer, it is necessary to construct a new waterproof layer after removing the existing waterproof layer and the existing hard layer. For this reason, there is a problem that the construction is prolonged. Moreover, although patent document 1 describes the technique of laying a waterproof sheet, it cannot be applied to an external floor in which another layer exists on the waterproof layer.
そこで、本発明は、既存防水層の上に既存硬質層が存在する外部床において、容易に防水層を改修することができる防水層改修方法を提供することを目的とする。 Then, an object of this invention is to provide the waterproof layer repair method which can repair a waterproof layer easily in the external floor in which the existing hard layer exists on the existing waterproof layer.
本発明の一側面に係る防水層改修方法は、既存防水層の上に既存硬質層を有する外部床の防水層改修方法であって、防水鋼板を、防水鋼板及び防水鋼板の下面に塗布された接着層が外部床の周縁部の全周にわたって連続するように、ビスを併用して、ビスの先端が既存防水層に到達しないように既存硬質層に固定する工程と、防水鋼板に対し、新規防水シートを外部床の周縁部に沿って連続的に接着する工程と、を有する。 A waterproof layer repair method according to one aspect of the present invention is a waterproof layer repair method for an external floor having an existing hard layer on an existing waterproof layer, wherein the waterproof steel sheet is applied to the bottom surface of the waterproof steel sheet and the waterproof steel sheet. A new process for waterproofing steel sheet, and a process for fixing to the existing hard layer so that the tip of the screw does not reach the existing waterproofing layer by using screws together so that the adhesive layer is continuous over the entire periphery of the peripheral edge of the outer floor, Continuously bonding the waterproof sheet along the peripheral edge of the external floor.
この防水層改修方法では、既存防水層の撤去を行わないため、工期が短く、容易に防水層の改修を行うことができる。既存防水層の撤去を行わないため、騒音の発生が抑制され、廃棄物が出ず、更に、建物の躯体への影響もない。 In this waterproof layer repair method, since the existing waterproof layer is not removed, the construction period is short and the waterproof layer can be repaired easily. Since the existing waterproof layer is not removed, the generation of noise is suppressed, no waste is generated, and there is no effect on the building structure.
外部床の周縁部の全周に亘って連続するように接着層が形成されるので、新規防水シートの下側への空気の流入が防止できる。このため、新規防水シートの上面に、風による負圧（吹き上げ力）が作用しても、既存防水層及び既存硬質層の重量が反力として作用し、新規防水シートに過大な負圧が作用することを防止できる（新規防水シートが持ち上がらない）。 Since the adhesive layer is formed so as to be continuous over the entire periphery of the peripheral portion of the external floor, the inflow of air to the lower side of the new waterproof sheet can be prevented. For this reason, even if negative pressure (blasting force) due to wind acts on the top surface of the new waterproof sheet, the weight of the existing waterproof layer and existing hard layer acts as a reaction force, and excessive negative pressure acts on the new waterproof sheet. (A new tarpaulin will not lift up).
また、ビスの先端が既存防水層に到達しないように防水鋼板を固定することで、既存防水層にビスによって孔が空けられることがなく、防水性が低下することがない。 Further, by fixing the waterproof steel plate so that the tip of the screw does not reach the existing waterproof layer, the existing waterproof layer is not perforated by the screw, and the waterproof property is not deteriorated.
防水鋼板の上面には、新規防水シートと同一素材のコーティング層が設けられていてもよい。この場合には、新規防水シートを防水鋼板に接着する際に、融着或は溶着によって確実に接着することができる。 A coating layer of the same material as the new waterproof sheet may be provided on the upper surface of the waterproof steel sheet. In this case, when the new waterproof sheet is bonded to the waterproof steel sheet, it can be securely bonded by fusion or welding.
本発明によれば、既存防水層の上に既存硬質層が存在する外部床において、容易に防水層を改修することができる。 ADVANTAGE OF THE INVENTION According to this invention, a waterproof layer can be easily repaired in the external floor where the existing hard layer exists on the existing waterproof layer.
以下、本発明の一実施形態について図面を参照しながら説明する。なお、図面の説明において同一の要素には同一の符号を付し、重複する説明を省略する。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.
図１及び図２に示すように、本実施形態では、外部床Ｘに設置された既存防水構造Ｂの改修を行う。外部床Ｘは、例えば、ベランダ、外廊下、或は、陸屋根等であってもよい。改修後の既存防水構造Ｂ及び新規防水構造Ａについて説明する。まず、既存防水構造Ｂについて説明する。既存防水構造Ｂは、外部床Ｘに設けられる。外部床Ｘは、床部を構成する床パネルＣ１と、壁部を構成する立設された壁パネルＣ２とを有する。床パネルＣ１及び壁パネルＣ２として、ＡＬＣ（軽量気泡コンクリート）パネルを用いることができる。既存防水構造Ｂは、床パネルＣ１上において、壁パネルＣ２で囲まれる領域内に設けられる。既存防水構造Ｂには、既存防水構造Ｂ上の雨水を排出するための排水管等が設けられていてもよい。 As shown in FIG.1 and FIG.2, in this embodiment, the existing waterproofing structure B installed in the external floor X is renovated. The external floor X may be, for example, a veranda, an outer corridor, or a flat roof. The existing waterproof structure B and the new waterproof structure A after repair will be described. First, the existing waterproof structure B will be described. The existing waterproof structure B is provided on the external floor X. The external floor X includes a floor panel C1 that constitutes a floor portion and a wall panel C2 that is erected to constitute a wall portion. As the floor panel C1 and the wall panel C2, ALC (lightweight cellular concrete) panels can be used. The existing waterproof structure B is provided in a region surrounded by the wall panel C2 on the floor panel C1. The existing waterproof structure B may be provided with a drain pipe or the like for discharging rainwater on the existing waterproof structure B.
既存防水構造Ｂは、既存防水シート（既存防水層）Ｂ１、既存保護シートＢ２、下地モルタル層（既存硬質層）Ｂ３、磁器タイル（既存硬質層）Ｂ４、及び、既存防水鋼板Ｂ５を含んで構成される。既存防水鋼板Ｂ５は、断面がＬ字形状を有し、外部床Ｘの隅角部に配置及び固定される。既存防水鋼板Ｂ５の上端は、壁パネルＣ２側に向けて屈曲しており、壁パネルＣ２に設けられた溝部Ｃ２ａに差し込まれる。 The existing waterproof structure B includes an existing waterproof sheet (existing waterproof layer) B1, an existing protective sheet B2, a base mortar layer (existing hard layer) B3, a porcelain tile (existing hard layer) B4, and an existing waterproof steel plate B5. Is done. The existing waterproof steel plate B5 has an L-shaped cross section, and is disposed and fixed at a corner portion of the external floor X. The upper end of the existing waterproof steel plate B5 is bent toward the wall panel C2, and is inserted into a groove C2a provided in the wall panel C2.
既存防水シートＢ１は、床パネルＣ１上に敷設され、周縁部が既存防水鋼板Ｂ５に対して溶着されている。既存防水シートＢ１として、例えば、塩化ビニル樹脂を主成分とする高分子防水シートを用いることができる。 The existing waterproof sheet B1 is laid on the floor panel C1, and the peripheral edge is welded to the existing waterproof steel sheet B5. As the existing waterproof sheet B1, for example, a polymer waterproof sheet mainly composed of vinyl chloride resin can be used.
既存防水シートＢ１上には、既存保護シートＢ２が重ねて敷設される。既存保護シートＢ２として、発砲ポリエチレンシートを用いることができる。既存保護シートＢ２上には、下地モルタル層Ｂ３が設置される。下地モルタル層Ｂ３は、ラス網を含んでいてもよい。下地モルタル層Ｂ３上には、磁器タイルＢ４が設置される。磁器タイルＢ４は、目地モルタル等によって、下地モルタル層Ｂ３に固定されている。 The existing protective sheet B2 is laid on the existing waterproof sheet B1. A foamed polyethylene sheet can be used as the existing protective sheet B2. A base mortar layer B3 is installed on the existing protective sheet B2. The base mortar layer B3 may include a lath net. A porcelain tile B4 is installed on the base mortar layer B3. The porcelain tile B4 is fixed to the base mortar layer B3 by joint mortar or the like.
次に、新規防水構造Ａについて説明する。新規防水構造Ａは、新規防水鋼板（防水鋼板）Ａ１、ビスＡ２、新規保護シートＡ３、及び、新規防水シートＡ４を含んで構成される。新規防水鋼板Ａ１は、断面Ｌ字形状を有する。新規防水鋼板Ａ１は、断面Ｌ字形状の角部が既存防水構造Ｂの隅角部に対向するように配置される。新規防水鋼板Ａ１の下面には、シール性の高い接着剤（粘着剤）が塗布され、接着層Ａ１ａが形成される。接着層Ａ１ａは、新規防水鋼板Ａ１の下面に連続的に（全面にわたって）塗布される。 Next, the novel waterproof structure A will be described. The new waterproof structure A includes a new waterproof steel plate (waterproof steel plate) A1, a screw A2, a new protective sheet A3, and a new waterproof sheet A4. New waterproof steel plate A1 has an L-shaped cross section. The new waterproof steel plate A1 is arranged so that the corners of the L-shaped cross section are opposed to the corners of the existing waterproof structure B. On the lower surface of the new waterproof steel plate A1, an adhesive (adhesive) having a high sealing property is applied to form an adhesive layer A1a. The adhesive layer A1a is continuously (over the entire surface) applied to the lower surface of the new waterproof steel plate A1.
新規防水鋼板Ａ１における断面Ｌ字形状の閉じ側の面（上面）には、新規防水シートＡ４と同一素材のコーティング層Ａ１ｂが設けられる。コーティング層Ａ１ｂの上端は、新規防水鋼板Ａ１の上端よりも張り出している。コーティング層Ａ１ｂの上端の張り出し部分は、壁パネルＣ２の溝部Ｃ２ａ内に差し込まれる。 A coating layer A1b made of the same material as the new waterproof sheet A4 is provided on the closed side surface (upper surface) of the L-shaped cross section of the new waterproof steel plate A1. The upper end of the coating layer A1b projects beyond the upper end of the new waterproof steel plate A1. The overhanging portion of the upper end of the coating layer A1b is inserted into the groove C2a of the wall panel C2.
新規防水鋼板Ａ１は、既存防水構造Ｂの周縁隅角部（周縁部）の全周にわたって連続するように設置される。これにより、既存防水構造Ｂの周縁隅角部の全周にわたって接着層Ａ１ａ及びコーティング層Ａ１ｂが連続する状態となる。新規防水鋼板Ａ１は、本固定用の接着層Ａ１ａによって磁器タイルＢ４の上面に接着（本固定）される。なお、新規防水鋼板Ａ１は、仮固定用のビスＡ２を併用して既存防水構造Ｂに仮固定される。ビスＡ２は、新規防水鋼板Ａ１を貫通して既存防水構造Ｂに差し込まれたときに、ビスＡ２の先端が既存防水シートＢ１に到達しない長さとなっている。 New waterproof steel plate A1 is installed so that it may continue over the perimeter corner part (periphery part) of the existing waterproof structure B. FIG. Thereby, it will be in the state where adhesive layer A1a and coating layer A1b continue over the perimeter of the peripheral corner part of the existing waterproof structure B. The new waterproof steel plate A1 is bonded (mainly fixed) to the upper surface of the porcelain tile B4 by the main fixing adhesive layer A1a. The new waterproof steel plate A1 is temporarily fixed to the existing waterproof structure B by using a temporary fixing screw A2. The screw A2 has such a length that the tip of the screw A2 does not reach the existing waterproof sheet B1 when it is inserted into the existing waterproof structure B through the new waterproof steel plate A1.
既存防水構造Ｂ上には、新規保護シートＡ３が敷設される。新規保護シートＡ３は、既存防水構造Ｂの上面の凹凸によって新規防水シートＡ４に傷がつかないように、凹凸を吸収して新規防水シートＡ４を保護する。 A new protective sheet A3 is laid on the existing waterproof structure B. The new protective sheet A3 protects the new waterproof sheet A4 by absorbing the unevenness so that the new waterproof sheet A4 is not damaged by the unevenness on the upper surface of the existing waterproof structure B.
新規防水シートＡ４は、新規保護シートＡ３上に敷設される。新規防水シートＡ４の周縁部は、新規防水鋼板Ａ１に対し、周縁部に沿って連続して融着或は溶着される。即ち、新規防水鋼板Ａ１の内側と外側との間で空気の流通がないように、新規防水シートＡ４が新規防水鋼板Ａ１に接着される。 The new waterproof sheet A4 is laid on the new protective sheet A3. The peripheral edge of the new waterproof sheet A4 is continuously fused or welded along the peripheral edge to the new waterproof steel sheet A1. That is, the new waterproof sheet A4 is bonded to the new waterproof steel sheet A1 so that there is no air flow between the inner side and the outer side of the new waterproof steel sheet A1.
溝部Ｃ２ａにはシーリング材Ｃ３が充填される。シーリング材Ｃ３は、溝部Ｃ２ａ内に差し込まれた既存防水鋼板Ｂ５の上端及びコーティング層Ａ１ｂの上端が溝部Ｃ２ａから脱落しないように押さえる機能を有する。 The groove C2a is filled with a sealing material C3. The sealing material C3 has a function of holding the upper end of the existing waterproof steel plate B5 inserted into the groove C2a and the upper end of the coating layer A1b so as not to drop out of the groove C2a.
次に、外部床Ｘに既存防水構造Ｂが設置された状態で、既存防水構造Ｂの改修のために新規防水構造Ａを設置する防水層改修方法の手順について説明する。図２に示すように、作業者は、溝部Ｃ２ａに充填されていた既存のシーリング材を除去する。この既存のシーリング材は、既存防水鋼板Ｂ５の上端を押さえていたものである。 Next, a procedure of a waterproof layer repair method for installing a new waterproof structure A for repairing the existing waterproof structure B in a state where the existing waterproof structure B is installed on the external floor X will be described. As shown in FIG. 2, the operator removes the existing sealing material filled in the groove C2a. This existing sealing material is the one that holds down the upper end of the existing waterproof steel plate B5.
次に、作業者は、既存防水構造Ｂの周縁隅角部の全周にわたって連続するように、新規防水鋼板Ａ１を配置し、接着層Ａ１ａによって新規防水鋼板Ａ１を磁器タイルＢ４に接着する。新規防水鋼板Ａ１の設置後、作業者は、ビスＡ２によって新規防水鋼板Ａ１を既存防水構造Ｂに仮固定する（新規防水鋼板Ａ１を下地モルタル層Ｂ３に固定する工程）。 Next, an operator arrange | positions the new waterproof steel plate A1 so that it may continue over the perimeter of the peripheral corner part of the existing waterproof structure B, and adhere | attaches the new waterproof steel plate A1 to the porcelain tile B4 with the contact bonding layer A1a. After the installation of the new waterproof steel plate A1, the operator temporarily fixes the new waterproof steel plate A1 to the existing waterproof structure B with the screw A2 (step of fixing the new waterproof steel plate A1 to the base mortar layer B3).
新規防水鋼板Ａ１の固定後、作業者は、コーティング層Ａ１ｂの上端を溝部Ｃ２ａ内に差し込み、溝部Ｃ２ａにシーリング材Ｃ３を充填する。なお、シーリング材Ｃ３の充填は、新規防水シートＡ４の敷設後であってもよい。 After fixing the new waterproof steel plate A1, the operator inserts the upper end of the coating layer A1b into the groove C2a and fills the groove C2a with the sealing material C3. The sealing material C3 may be filled after the new waterproof sheet A4 is laid.
次に、作業者は、既存防水構造Ｂ上に新規保護シートＡ３を敷設し、更に新規保護シートＡ３上に新規防水シートＡ４を敷設する。そして、作業者は、新規防水シートＡ４を新規防水鋼板Ａ１に対して連続的に接着する（新規防水シートＡ４を連続的に接着する工程）。 Next, the operator lays a new protective sheet A3 on the existing waterproof structure B, and further lays a new waterproof sheet A4 on the new protective sheet A3. Then, the operator continuously bonds the new waterproof sheet A4 to the new waterproof steel sheet A1 (step of continuously bonding the new waterproof sheet A4).
本実施形態は以上のように構成され、既存防水構造Ｂの上に新規防水構造Ａを設ける方法では、既存防水構造Ｂの撤去を行わないため、工期が短く、容易に改修を行うことができる。既存防水構造Ｂの撤去を行わないため、騒音の発生が抑制され、廃棄物が出ず、更に、建物の躯体への影響もない。 The present embodiment is configured as described above. In the method of providing the new waterproof structure A on the existing waterproof structure B, the existing waterproof structure B is not removed, so the construction period is short and the repair can be easily performed. . Since the existing waterproof structure B is not removed, generation of noise is suppressed, no waste is generated, and there is no influence on the building frame.
外部床Ｘ（既存防水構造Ｂ）の周縁部の全周に亘って連続する接着層Ａ１ａが形成され、更に、新規防水シートＡ４の周縁部が連続的に新規防水鋼板Ａ１に接着されるので、新規防水シートＡ４の下側への空気の流入が防止できる。このため、新規防水シートＡ４の上面に、風による負圧（吹き上げ力）が作用しても、既存防水構造Ｂの重量が反力として作用し、新規防水シートＡ４に過大な負圧が作用することを防止できる（新規防水シートＡ４が持ち上がらない）。 Since the continuous adhesive layer A1a is formed over the entire periphery of the peripheral edge of the external floor X (existing waterproof structure B), and the peripheral edge of the new waterproof sheet A4 is continuously bonded to the new waterproof steel sheet A1, Inflow of air to the lower side of the new waterproof sheet A4 can be prevented. For this reason, even if negative pressure (blasting force) due to wind acts on the upper surface of the new waterproof sheet A4, the weight of the existing waterproof structure B acts as a reaction force, and an excessive negative pressure acts on the new waterproof sheet A4. (The new waterproof sheet A4 does not lift up).
また、ビスＡ２の先端が既存防水シートＢ１に到達しないように新規防水鋼板Ａ１を固定することで、既存防水シートＢ１にビスＡ２によって孔が空けられることがなく、防水性が低下することがない。 Further, by fixing the new waterproof steel plate A1 so that the tip of the screw A2 does not reach the existing waterproof sheet B1, the existing waterproof sheet B1 is not perforated by the screw A2, and the waterproof property does not deteriorate. .
新規防水鋼板Ａ１の上面には、新規防水シートＡ４と同一素材のコーティング層Ａ１ｂが設けられているので、新規防水シートＡ４を新規防水鋼板Ａ１に接着する際に、融着或は溶着によって確実に接着することができる。 Since the coating layer A1b made of the same material as the new waterproof sheet A4 is provided on the upper surface of the new waterproof steel sheet A1, when the new waterproof sheet A4 is bonded to the new waterproof steel sheet A1, it is ensured by fusion or welding. Can be glued.
以上、本発明の一実施形態について説明したが、本発明は、上記実施形態に限定されるものではない。例えば、既存防水構造Ｂに設けられる防水層として既存防水シートＢ１を例に説明したが、既存防水シートＢ１に限らず、アスファルト防水層等、他の防水層であってもよい。既存防水構造Ｂに設けられる硬質層として下地モルタル層Ｂ３を例に説明したが、モルタルに限定されず、アスファルト防水層の押さえコンクリート（シンダーコンクリート）であってもよい。 Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. For example, although the existing waterproof sheet B1 has been described as an example of the waterproof layer provided in the existing waterproof structure B, other waterproof layers such as an asphalt waterproof layer may be used without being limited to the existing waterproof sheet B1. Although the base mortar layer B3 has been described as an example of the hard layer provided in the existing waterproof structure B, it is not limited to mortar, and may be pressed concrete (cinder concrete) of an asphalt waterproof layer.
壁パネルＣ２に設けられた溝部Ｃ２ａ内に、既存防水鋼板Ｂ５の上端部と共にコーティング層Ａ１ｂの上端部を差し込むものとしたが、壁パネルＣ２に新たに溝部を設け、既存防水鋼板Ｂ５の上端部とコーティング層Ａ１ｂの上端部とをそれぞれ別々の溝部に差し込むこともできる。この場合、改修工事の際に溝部Ｃ２ａからシーリング材を取り除く必要が無く、壁パネルＣ２に溝部を形成するだけで良いので、改修工事が容易となる。 The upper end of the coating layer A1b is inserted into the groove C2a provided in the wall panel C2 together with the upper end of the existing waterproof steel plate B5. However, a new groove is provided in the wall panel C2, and the upper end of the existing waterproof steel plate B5 is provided. And the upper end of the coating layer A1b can be inserted into separate grooves. In this case, it is not necessary to remove the sealing material from the groove C2a at the time of the renovation work, and it is only necessary to form the groove on the wall panel C2.
Ａ１…新規防水鋼板（防水鋼板）、Ａ１ａ…接着層、Ａ１ｂ…コーティング層、Ａ２…ビス、Ａ４…新規防水シート、Ｂ１…既存防水シート（既存防水層）、Ｂ３…下地モルタル層（既存硬質層）、Ｂ４…磁器タイル（既存硬質層）、Ｘ…外部床。 A1 ... New waterproof steel plate (waterproof steel plate), A1a ... Adhesive layer, A1b ... Coating layer, A2 ... Screw, A4 ... New waterproof sheet, B1 ... Existing waterproof sheet (existing waterproof layer), B3 ... Base mortar layer (existing hard layer) ), B4 ... Porcelain tile (existing hard layer), X ... external floor.
Claims (2)
防水鋼板を、前記防水鋼板及び前記防水鋼板の下面に塗布された接着層が前記外部床の周縁部の全周にわたって連続するように、ビスを併用して、前記ビスの先端が前記既存防水層に到達しないように前記既存硬質層に固定する工程と、
前記防水鋼板に対し、新規防水シートを前記外部床の周縁部に沿って連続的に接着する工程と、
を有する防水層改修方法。 A waterproof layer repair method for an external floor having an existing hard layer on an existing waterproof layer,
The waterproof steel plate is used in combination with a screw so that the waterproof steel plate and the adhesive layer applied to the lower surface of the waterproof steel plate are continuous over the entire periphery of the peripheral edge of the external floor, and the tip of the screw is the existing waterproof layer. Fixing to the existing hard layer so as not to reach
A process of continuously bonding a new waterproof sheet along the peripheral edge of the external floor to the waterproof steel sheet,
A waterproof layer refurbishing method comprising:
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| JPS603349A (en) * | 1983-06-20 | 1985-01-09 | ロンシール工業株式会社 | Heat insulating and waterproof construction and waterproof sheet press metal fittings used therein |
| JPH11148202A (en) * | 1997-11-17 | 1999-06-02 | Konsutec:Kk | Waterproof modification method |
| JPH11210180A (en) * | 1998-01-22 | 1999-08-03 | Taisei Corp | Method for constructing raised part of parapet |
| JP2012097453A (en) * | 2010-11-01 | 2012-05-24 | Sekisui House Ltd | Waterproof sheet structure and construction method of waterproof sheet |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS603349A (en) * | 1983-06-20 | 1985-01-09 | ロンシール工業株式会社 | Heat insulating and waterproof construction and waterproof sheet press metal fittings used therein |
| JPH11148202A (en) * | 1997-11-17 | 1999-06-02 | Konsutec:Kk | Waterproof modification method |
| JPH11210180A (en) * | 1998-01-22 | 1999-08-03 | Taisei Corp | Method for constructing raised part of parapet |
| JP2012097453A (en) * | 2010-11-01 | 2012-05-24 | Sekisui House Ltd | Waterproof sheet structure and construction method of waterproof sheet |
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