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JP2022012851A - Metal roof and waterproof construction method for the same - Google Patents

Metal roof and waterproof construction method for the same Download PDF

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JP2022012851A
JP2022012851A JP2020114976A JP2020114976A JP2022012851A JP 2022012851 A JP2022012851 A JP 2022012851A JP 2020114976 A JP2020114976 A JP 2020114976A JP 2020114976 A JP2020114976 A JP 2020114976A JP 2022012851 A JP2022012851 A JP 2022012851A
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metal roof
sheet
waterproof layer
protrusion
valley
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JP7435321B2 (en
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善彦 佐々木
Yoshihiko Sasaki
貴夫 石塚
Takao Ishizuka
圭悟 山脇
Keigo Yamawaki
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Mitsubishi Chemical Infratec Co Ltd
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Abstract

To provide a metal roof for preventing waterproof swelling, and a construction method for the same.SOLUTION: A metal roof body 10 has a crest part 1a, a trough part 1b and an inclination wall part 1c. A projection part 1d is erected upward from the crest part 1a. A craft tape 11 is stuck to an upper surface of the trough part 1b so as to extend in a longitudinal direction of the trough part 1b, thereby forming an intermediate layer non-adhesive to a waterproof layer. A sheet 12 is stuck so as to reach inclination wall parts 1c and 1c on both right and left sides of the projection part 1d from the projection part 1d. Then, the waterproof layer 5 is formed by foam spraying, coat spraying and top spraying.SELECTED DRAWING: Figure 1

Description

本発明は防水層を有する金属屋根と、金属屋根に防水層を形成する施工方法とに関する。 The present invention relates to a metal roof having a waterproof layer and a construction method for forming a waterproof layer on the metal roof.

金属屋根に防水層を形成する場合、図３のように、金属屋根本体１の上に発泡ウレタン等よりなる断熱層２をフォーム吹付けにより形成し、その上に防水性コート層３を吹付けにより形成し、その上に保護用トップ層４を吹付けにより形成し、防水層５を形成する（例えば特許文献１）。図３では、金属屋根本体１は複数の山部１ａと谷部１ｂとが傾斜壁部１ｃを介して連続した波板状となっており、山部１ａの頂面は平坦面となっている。 When forming a waterproof layer on a metal roof, as shown in FIG. 3, a heat insulating layer 2 made of urethane foam or the like is formed on the metal roof main body 1 by foam spraying, and the waterproof coat layer 3 is sprayed on the heat insulating layer 2. The protective top layer 4 is formed by spraying onto the protective top layer 4 to form the waterproof layer 5 (for example, Patent Document 1). In FIG. 3, the metal roof main body 1 has a plurality of mountain portions 1a and valley portions 1b in a continuous corrugated plate shape via an inclined wall portion 1c, and the top surface of the mountain portion 1a is a flat surface. ..

図４の金属屋根本体１０では、山部１ａから突起部（ハゼ部（馳部））１ｄが上方に突設されている。突起部１ｄは、図５のように、隣接する折版単体１Ａ，１Ｂの側辺縁のハゼ片１ｅ，１ｆを嵌合させたものである（例えば特許文献２）。 In the metal roof main body 10 of FIG. 4, a protrusion (hemming and seaming portion) 1d is projected upward from the mountain portion 1a. As shown in FIG. 5, the protrusion 1d is formed by fitting the goby pieces 1e and 1f on the side edges of the adjacent folded plate units 1A and 1B (for example, Patent Document 2).

特開２００８－６９５６３号公報Japanese Unexamined Patent Publication No. 2008-69563 特開２０１８－１６８５５号公報Japanese Unexamined Patent Publication No. 2018-16855

従来工法により形成された防水層（例えば図３の防水層５）は、金属屋根本体１の上面に全面的に密着している。 The waterproof layer formed by the conventional method (for example, the waterproof layer 5 in FIG. 3) is in full contact with the upper surface of the metal roof body 1.

このような金属屋根にあっては、降雨、結露等によって水分が防水層５と金属屋根本体１，１０との界面に入り込んだ場合、夏季などの高温期に水分が蒸発して膨張し、防水層５を金属屋根本体１，１０から引き剥すように膨張し、膨れと称される膨張部分を生じさせることがある。 In such a metal roof, when moisture enters the interface between the waterproof layer 5 and the metal roof bodies 1 and 10 due to rainfall, dew condensation, etc., the moisture evaporates and expands in the high temperature period such as summer, and is waterproof. The layer 5 may be expanded so as to be peeled off from the metal roof bodies 1 and 10 to generate an expanded portion called a bulge.

本発明は、かかる防水の膨れが防止される金属屋根と、そのための施工方法とを提供することを目的とする。 It is an object of the present invention to provide a metal roof in which such waterproof swelling is prevented, and a construction method for that purpose.

本発明は次を要旨とする。 The gist of the present invention is as follows.

［１］ 山部、谷部及び両者の間の傾斜壁部を有する金属屋根本体と、該金属屋根本体の上面に形成された防水層とを有する金属屋根において、該金属屋根本体の谷部と防水層との間に、該谷部に付着し、該防水層とは非付着となっている中間層が介在していることを特徴とする金属屋根。 [1] In a metal roof having a metal roof main body having a mountain portion, a valley portion and a sloping wall portion between the two, and a waterproof layer formed on the upper surface of the metal roof main body, the valley portion of the metal roof main body A metal roof characterized in that an intermediate layer that adheres to the valley and is not adhered to the waterproof layer is interposed between the waterproof layer.

［２］ 前記中間層は、前記谷部に貼着され、谷部の長手方向に延在するクラフトテープである［１］の金属屋根。 [2] The metal roof of [1], wherein the intermediate layer is a kraft tape that is attached to the valley and extends in the longitudinal direction of the valley.

［３］ 前記金属屋根本体は、前記山部から立ち上がる突起部を有しており、
該突起部と該傾斜壁部の上部との間にシートが貼着され、該突起部、シート及び山部で囲まれたスペースが形成されており、
前記防水層は該シートの外面側に設けられていることを特徴とする［１］又は［２］の金属屋根。 [3] The metal roof body has a protrusion that rises from the mountain portion.
A sheet is attached between the protrusion and the upper part of the inclined wall portion, and a space surrounded by the protrusion, the sheet and the mountain portion is formed.
The metal roof according to [1] or [2], wherein the waterproof layer is provided on the outer surface side of the sheet.

［４］ 山部、谷部、両者の間の傾斜壁部、及び該山部から立ち上がる突起部を有する金属屋根本体と、該金属屋根本体の上面に形成された防水層と
を有する金属屋根において、該突起部と該傾斜壁部の上部との間がシートで覆われ、該突起部、シート及び山部で囲まれたスペースが形成されており、前記防水層は該シートの外面側に設けられていることを特徴とする金属屋根。 [4] In a metal roof having a mountain portion, a valley portion, a sloping wall portion between the two, a metal roof main body having a protrusion rising from the mountain portion, and a waterproof layer formed on the upper surface of the metal roof main body. The space between the protrusion and the upper part of the inclined wall portion is covered with a sheet to form a space surrounded by the protrusion, the sheet and the mountain portion, and the waterproof layer is provided on the outer surface side of the sheet. A metal roof characterized by being.

［５］ 前記シートは合成樹脂または天然樹脂よりなる基材と、該基材に塗着された粘着剤とを有する［３］又は［４］の金属屋根。 [5] The sheet is a metal roof according to [3] or [4], which has a base material made of a synthetic resin or a natural resin and an adhesive coated on the base material.

［６］ 前記シートはブチルテープである［３］～［５］のいずれかの金属屋根。 [6] The sheet is a metal roof according to any one of [3] to [5], which is a butyl tape.

［７］ 山部、谷部及び両者の間の傾斜壁部を有する金属屋根本体の上面に防水層を形成する金属屋根の防水施工方法において、該金属屋根本体の谷部の上面に、該谷部に付着し、該防水層とは非付着となる中間層を形成した後、前記防水層を形成することを特徴とする金属屋根。 [7] In a method for waterproofing a metal roof in which a waterproof layer is formed on the upper surface of a metal roof body having a mountain portion, a valley portion, and a sloping wall portion between the two, the valley is formed on the upper surface of the valley portion of the metal roof body. A metal roof characterized in that an intermediate layer that adheres to a portion and is not adhered to the waterproof layer is formed, and then the waterproof layer is formed.

［８］ 前記谷部に、谷部の長手方向に延在するようにクラフトテープを貼ることにより前記中間層を形成する［７］の金属屋根の防水施工方法。 [8] The method for waterproofing a metal roof according to [7], which forms the intermediate layer by attaching kraft tape to the valley portion so as to extend in the longitudinal direction of the valley portion.

［９］ 前記金属屋根本体は、前記山部から立ち上がる突起部を有しており、
該突起部と該傾斜壁部の上部との間をシートで覆い、該突起部、シート及び山部で囲まれたスペースが形成した後、前記防水層を形成することを特徴とする［７］又は［８］の金属屋根の防水施工方法。 [9] The metal roof body has a protrusion that rises from the mountain portion.
It is characterized in that the space between the protrusion and the upper portion of the inclined wall portion is covered with a sheet, and a space surrounded by the protrusion, the sheet and the mountain portion is formed, and then the waterproof layer is formed [7]. Or the waterproof construction method of the metal roof of [8].

［１０］ 山部、谷部、両者の間の傾斜壁部、及び該山部から立ち上がる突起部を有する金属屋根本体の上面に防水層を形成する金属屋根の防水施工方法において、該突起部と該傾斜壁部の上部との間にシートを貼着し、該突起部、シート及び山部で囲まれたスペースを形成した後、前記防水層を形成することを特徴とする金属屋根の防水施工方法。 [10] In a method for waterproofing a metal roof that forms a waterproof layer on the upper surface of a metal roof body having a mountain portion, a valley portion, a sloping wall portion between the two, and a protrusion rising from the mountain portion, the protrusion and the protrusion. A sheet is attached between the upper part of the inclined wall portion to form a space surrounded by the protrusions, the sheet and the mountain portion, and then the waterproof layer is formed. Method.

［１１］ 前記シートは合成樹脂または天然樹脂よりなる基材と、該基材に塗着された粘着剤とを有する［９］又は［１０］の金属屋根の防水施工方法。 [11] The method for waterproofing a metal roof according to [9] or [10], wherein the sheet has a base material made of a synthetic resin or a natural resin and an adhesive coated on the base material.

［１２］ 前記シートはブチルテープである［９］～［１１］のいずれかの金属屋根の防水施工方法。 [12] The method for waterproofing a metal roof according to any one of [9] to [11], wherein the sheet is a butyl tape.

本発明の一態様の金属屋根にあっては、金属屋根本体の谷部の上面に形成されたクラフトテープ等よりなる中間層が形成されている。この中間層は、防水層と非付着となっている。そのため、谷部近傍において防水層と金属屋根本体との間に入り込んだ水が蒸発して水蒸気が生成した場合、この水蒸気や水蒸気を含んだ空気は中間層と防水層との間に入り込み、中間層に沿って広く拡散する。これにより、防水層の膨れが防止される。 In the metal roof of one aspect of the present invention, an intermediate layer made of kraft tape or the like formed on the upper surface of the valley portion of the metal roof body is formed. This intermediate layer is non-adherent to the waterproof layer. Therefore, when the water that has entered between the waterproof layer and the metal roof body evaporates in the vicinity of the valley to generate water vapor, the water vapor and the air containing water vapor enter between the intermediate layer and the waterproof layer, and are in the middle. Spreads widely along the layers. This prevents the waterproof layer from swelling.

本発明の別の一態様の金属屋根にあっては、金属屋根本体の突起部に沿ってスペースが形成される。そのため、山部近傍において防水層と金属屋根本体との間に入り込んだ水が蒸発して水蒸気が生成した場合、この水蒸気や水蒸気を含んだ空気は該スペースに入り込んで広く拡散する。これにより防水層の膨れが防止される。 In another aspect of the metal roof of the present invention, a space is formed along the protrusion of the metal roof body. Therefore, when the water that has entered between the waterproof layer and the metal roof body evaporates in the vicinity of the mountain portion to generate water vapor, the water vapor and the air containing the water vapor enter the space and diffuse widely. This prevents the waterproof layer from swelling.

本発明の金属屋根の防水施工方法によると、かかる金属屋根を容易に構成することができる。 According to the method for waterproofing a metal roof of the present invention, such a metal roof can be easily constructed.

実施の形態に係る金属屋根の防水施工方法を説明する断面図である。It is sectional drawing explaining the waterproof construction method of the metal roof which concerns on embodiment. 図１（ｃ）のII部分の拡大図である。It is an enlarged view of the II part of FIG. 1 (c). 従来の金属屋根の構成図である。It is a block diagram of a conventional metal roof. 金属屋根本体（ハゼ式屋根）の断面図である。It is sectional drawing of the metal roof body (goby type roof). 金属屋根本体（ハゼ式屋根）の断面拡大図である。It is sectional drawing of the metal roof body (goby type roof). 金属屋根本体（重ね式屋根）の断面図である。It is sectional drawing of the metal roof body (stacked roof).

以下、図１，２を参照して実施の形態について説明する。 Hereinafter, embodiments will be described with reference to FIGS. 1 and 2.

図１（ａ）に示す金属屋根本体１０の一例として、前記図４に金属屋根の一例を示す。前述の通り山部１ａ、谷部１ｂ及び傾斜壁部１ｃを有している。また、山部１ａから突起部１ｄが上方に起立している。なお、金属屋根本体１０としては、図４に示すハゼ式屋根や図６に示す重ね式屋根に代表される金属屋根の他、波板屋根、瓦棒屋根等も含まれる。 As an example of the metal roof main body 10 shown in FIG. 1A, FIG. 4 shows an example of the metal roof. As described above, it has a mountain portion 1a, a valley portion 1b, and an inclined wall portion 1c. Further, the protrusion 1d stands upward from the mountain portion 1a. The metal roof main body 10 includes a corrugated roof, a tiled roof, and the like, in addition to a metal roof represented by a goby roof shown in FIG. 4 and a stacked roof shown in FIG.

図１（ｂ）の通り、谷部１ｂの上面に谷部１ｂの長手方向（図１，２では紙面と垂直方向）に延在するようにクラフトテープ１１を貼ることにより、防水層に対して非付着性の中間層を形成する。クラフトテープ１１は市販品であり、クラフト紙よりなる基材テープの一方の面に粘着剤層が設けられ、他方の面に合成樹脂がラミネートされたものである。該粘着剤層を介してクラフトテープ１１が谷部１ｂに付着される。 As shown in FIG. 1 (b), the kraft tape 11 is attached to the upper surface of the valley portion 1b so as to extend in the longitudinal direction of the valley portion 1b (perpendicular to the paper surface in FIGS. 1 and 2) to the waterproof layer. Form a non-adhesive intermediate layer. The kraft tape 11 is a commercially available product, in which an adhesive layer is provided on one surface of a base tape made of kraft paper, and a synthetic resin is laminated on the other surface. The kraft tape 11 is attached to the valley portion 1b via the pressure-sensitive adhesive layer.

クラフトテープ１１の幅Ｗ１は谷部１ｂの幅Ｗ２の３～９５％特に２５～８５％程度が好適である。 The width W 1 of the kraft tape 11 is preferably about 3 to 95%, particularly about 25 to 85% of the width W 2 of the valley portion 1b.

また、この実施の形態では、突起部１ｄから、その左右両側の傾斜壁部１ｃ，１ｃにまで達するようにシート１２で覆う。 Further, in this embodiment, the sheet 12 covers the protrusions 1d so as to reach the inclined wall portions 1c and 1c on both the left and right sides thereof.

シート１２は合成樹脂または天然樹脂からなる基材を有する。該基材としては押出成形、射出成形等により成形されたものや織布、不織布等に加工されたものを用いることができる。上記基材の一方の面に、さらに粘着剤を塗着させて突起部（突起部）を覆うように貼着することができる。また、シート１２としては、あらかじめ粘着剤が塗着された市販品のテープを使用することもでき、例えば、ポリエステル不織布などよりなる合成繊維不織布製テープ基材の一方又は双方の面にブチルゴム系粘着剤が塗着されたブチルゴムテープ等を使用することができる。ブチルゴムテープは伸縮性及び通気性を有し、また、金属屋根本体への粘着力が高く、防水層との付着性も良好であり、しかも安価で耐久性も良好であり、好適である。 The sheet 12 has a base material made of a synthetic resin or a natural resin. As the base material, one molded by extrusion molding, injection molding or the like, or one processed into a woven fabric, a non-woven fabric or the like can be used. An adhesive can be further applied to one surface of the base material and attached so as to cover the protrusions (protrusions). Further, as the sheet 12, a commercially available tape coated with an adhesive in advance can be used. For example, a butyl rubber-based adhesive can be used on one or both surfaces of a synthetic fiber non-woven fabric tape base material made of polyester non-woven fabric or the like. Butyl rubber tape or the like coated with the agent can be used. Butyl rubber tape has elasticity and breathability, has high adhesiveness to a metal roof body, has good adhesion to a waterproof layer, is inexpensive, and has good durability, and is suitable.

シート１２の厚みは０．０１～１０ｍｍであることが好ましく、より好ましくは０．１～５ｍｍである。 The thickness of the sheet 12 is preferably 0.01 to 10 mm, more preferably 0.1 to 5 mm.

シート１２は、突起部１ｄの頂部から山部１ａと傾斜壁部１ｃとの交差部を経て斜めに延在し、傾斜壁部１ｃの上部に貼着される。そのため、シート１２と、突起部１ｄと、山部１ａ上面との間にスペースＳが形成される。 The sheet 12 extends diagonally from the top of the protrusion 1d through the intersection of the mountain portion 1a and the inclined wall portion 1c, and is attached to the upper portion of the inclined wall portion 1c. Therefore, a space S is formed between the sheet 12, the protrusion 1d, and the upper surface of the mountain portion 1a.

このほか、あらかじめ凹状に成型されたシートを突起部（突起部）を覆うように固定して上記スペースSを形成させることもできる。 In addition, the space S can be formed by fixing a sheet molded in a concave shape in advance so as to cover the protrusion (protrusion).

シート１２と傾斜壁部１ｃとの重なり幅ｔは５～２００ｍｍ特に１０～１００ｍｍ程度が好適である。 The overlapping width t between the sheet 12 and the inclined wall portion 1c is preferably about 5 to 200 mm, particularly about 10 to 100 mm.

このようにクラフトテープ１１及びシート１２を貼った後、従来と同様に断熱層２の吹付け、コート層３の吹付け、トップ層４の吹付けを行って、図１（ｃ）及び図２の通り防水層５を金属屋根本体１０の上面の全体に形成する。コート層３及びトップ層４は、材料の特性により、ローラー、刷毛等の施工工具を用いて塗布してもよい。 After the kraft tape 11 and the sheet 12 are attached in this way, the heat insulating layer 2 is sprayed, the coat layer 3 is sprayed, and the top layer 4 is sprayed in the same manner as in the conventional case, and FIGS. 1 (c) and 2 are performed. As shown, the waterproof layer 5 is formed on the entire upper surface of the metal roof body 10. Depending on the characteristics of the material, the coat layer 3 and the top layer 4 may be applied using a construction tool such as a roller or a brush.

断熱層２は設けてもよく、設けなくても良い。断熱層２を設けないときは、金属屋根１とコート層３とが付着するプライマー層を設ける。プライマー層は吹付けもしくは前述の施工工具により塗布する。 The heat insulating layer 2 may or may not be provided. When the heat insulating layer 2 is not provided, a primer layer to which the metal roof 1 and the coat layer 3 adhere is provided. The primer layer is applied by spraying or by the above-mentioned construction tool.

このようにして形成された防水層５は、クラフトテープ１１以外の箇所には密着状に付着している。クラフトテープ１１の上面は、防水層５に重なっているが、クラフトテープ１１と防水層とは付着（粘着又は接着）していない。 The waterproof layer 5 thus formed adheres to a portion other than the kraft tape 11 in close contact with the waterproof layer 5. The upper surface of the kraft tape 11 overlaps the waterproof layer 5, but the kraft tape 11 and the waterproof layer are not adhered (adhesive or adhered).

そのため、クラフトテープ１１の近傍において防水層５と金属屋根本体１０との間に水分が入り込み、この水分が蒸発して水蒸気となった場合でも、この水蒸気や水蒸気を含んだ空気は、防水層５とクラフトテープ１１との界面に流れ込み、クラフトテープ１１の長手方向に拡散する。そのため、クラフトテープ１１の近傍における、水蒸気の膨張に起因した防水層５の膨れが防止される。 Therefore, even if water enters between the waterproof layer 5 and the metal roof body 10 in the vicinity of the kraft tape 11 and the water vapor evaporates to become water vapor, the water vapor and the air containing the water vapor are still in the waterproof layer 5. It flows into the interface between the kraft tape 11 and the kraft tape 11 and diffuses in the longitudinal direction of the kraft tape 11. Therefore, the swelling of the waterproof layer 5 due to the swelling of water vapor in the vicinity of the kraft tape 11 is prevented.

また、山部１ａやその近傍において防水層５と金属屋根本体との間、あるいは防水層５とシート１２との間に水が入り込み、この水分が蒸発して水蒸気が生じたとしても、この水蒸気又は水蒸気を含んだ空気は、前記スペースＳに流入し、山部１ａの長手方向に拡散する。これにより、山部１ａやその近傍における防水層５の膨れが防止される。 Further, even if water enters between the waterproof layer 5 and the metal roof body or between the waterproof layer 5 and the sheet 12 in or near the mountain portion 1a and the water evaporates to generate water vapor, the water vapor is generated. Alternatively, the air containing water vapor flows into the space S and diffuses in the longitudinal direction of the mountain portion 1a. This prevents the waterproof layer 5 from swelling in or near the mountain portion 1a.

上記実施の形態では、クラフトテープ１１とシート１２との双方を貼っているが一方のみを貼るようにしてもよい。 In the above embodiment, both the kraft tape 11 and the sheet 12 are attached, but only one may be attached.

上記実施の形態ではクラフトテープ１１を用いているが、一方の面が金属屋根に対する付着性を有し、他方の面が防水層に対し付着性を全く又は殆ど有しない、その他のテープを用いてもよい。また、クラフトテープ等のテープを貼る代りに、塗料を用いてクラフトテープと同様の特性（金属屋根本体に付着し、防水層には非付着となる性質）を有した中間層を形成してもよい。 Although the kraft tape 11 is used in the above embodiment, other tapes having one surface having adhesiveness to the metal roof and the other surface having no or almost no adhesiveness to the waterproof layer are used. May be good. Also, instead of sticking tape such as kraft tape, even if a paint is used to form an intermediate layer having the same characteristics as kraft tape (property that adheres to the metal roof body and does not adhere to the waterproof layer). good.

ただし、クラフトテープは、その合成樹脂ラミネート面が防水層との付着性を全く又は殆ど有しておらず、また、安価で取扱いも容易であるので、クラフトテープにより中間層を形成するのが好適である。 However, since the synthetic resin laminated surface of the kraft tape has no or almost no adhesion to the waterproof layer, and is inexpensive and easy to handle, it is preferable to form an intermediate layer with the kraft tape. Is.

本発明では、防水層の構成は特に限定されるものではなく、一般的に用いられている断熱層、防水コート層及び保護用トップ層を有するものに限らず、さらに別の構成の防水層を採用してもよい。防水層の材料も特に限定されない。 In the present invention, the structure of the waterproof layer is not particularly limited, and the waterproof layer is not limited to the one having a heat insulating layer, a waterproof coat layer, and a protective top layer that are generally used, and a waterproof layer having a different structure is used. It may be adopted. The material of the waterproof layer is also not particularly limited.

１，１０ 金属屋根本体
１ａ 山部
１ｂ 谷部
１ｃ 傾斜壁部
１ｄ 突起部
２ 断熱層
３ コート層
４ トップ層
１１ クラフトテープ
１２ シート 1,10 Metal roof body 1a Mountain part 1b Valley part 1c Inclined wall part 1d Protrusion part 2 Insulation layer 3 Coat layer 4 Top layer 11 Craft tape 12 Sheet

Claims (12)

山部、谷部及び両者の間の傾斜壁部を有する金属屋根本体と、
該金属屋根本体の上面に形成された防水層と
を有する金属屋根において、
該金属屋根本体の谷部と防水層との間に、該谷部に付着し、該防水層とは非付着となっている中間層が介在していることを特徴とする金属屋根。 A metal roof body with ridges, valleys and sloping walls between them,
In a metal roof having a waterproof layer formed on the upper surface of the metal roof body,
A metal roof characterized in that an intermediate layer that adheres to the valley and is not adhered to the waterproof layer is interposed between the valley of the metal roof body and the waterproof layer. 前記中間層は、前記谷部に貼着され、谷部の長手方向に延在するクラフトテープである請求項１の金属屋根。 The metal roof according to claim 1, wherein the intermediate layer is a kraft tape attached to the valley portion and extending in the longitudinal direction of the valley portion. 前記金属屋根本体は、前記山部から立ち上がる突起部を有しており、
該突起部と該傾斜壁部の上部との間にシートが貼着され、該突起部、シート及び山部で囲まれたスペースが形成されており、
前記防水層は該シートの外面側に設けられていることを特徴とする請求項１又は２の金属屋根。 The metal roof body has a protrusion that rises from the mountain portion.
A sheet is attached between the protrusion and the upper part of the inclined wall portion, and a space surrounded by the protrusion, the sheet and the mountain portion is formed.
The metal roof according to claim 1 or 2, wherein the waterproof layer is provided on the outer surface side of the sheet. 山部、谷部、両者の間の傾斜壁部、及び該山部から立ち上がる突起部を有する金属屋根本体と、
該金属屋根本体の上面に形成された防水層と
を有する金属屋根において、
該突起部と該傾斜壁部の上部との間がシートで覆われ、該突起部、シート及び山部で囲まれたスペースが形成されており、
前記防水層は該シートの外面側に設けられていることを特徴とする金属屋根。 A metal roof body having a mountain part, a valley part, a sloping wall part between the two parts, and a protrusion rising from the mountain part,
In a metal roof having a waterproof layer formed on the upper surface of the metal roof body,
The space between the protrusion and the upper part of the inclined wall portion is covered with a sheet, and a space surrounded by the protrusion, the sheet and the mountain portion is formed.
A metal roof characterized in that the waterproof layer is provided on the outer surface side of the sheet. 前記シートは合成樹脂または天然樹脂からなる基材と、該基材に塗着された粘着剤とを有する請求項３又は４の金属屋根。 The metal roof according to claim 3 or 4, wherein the sheet has a base material made of a synthetic resin or a natural resin and a pressure-sensitive adhesive coated on the base material. 前記シートはブチルテープである請求項３～５のいずれかの金属屋根。 The metal roof according to any one of claims 3 to 5, wherein the sheet is butyl tape. 山部、谷部及び両者の間の傾斜壁部を有する金属屋根本体の上面に防水層を形成する金属屋根の防水施工方法において、
該金属屋根本体の谷部の上面に、該谷部に付着し、該防水層とは非付着となる中間層を形成した後、前記防水層を形成することを特徴とする金属屋根の防水施工方法。 In a waterproof construction method for a metal roof that forms a waterproof layer on the upper surface of a metal roof body having a mountain portion, a valley portion, and a sloping wall portion between the two.
A waterproof construction of a metal roof, characterized in that an intermediate layer that adheres to the valley and is not adhered to the waterproof layer is formed on the upper surface of the valley of the metal roof body, and then the waterproof layer is formed. Method. 前記谷部に、谷部の長手方向に延在するようにクラフトテープを貼ることにより前記中間層を形成する請求項７の金属屋根の防水施工方法。 The method for waterproofing a metal roof according to claim 7, wherein a kraft tape is attached to the valley portion so as to extend in the longitudinal direction of the valley portion to form the intermediate layer. 前記金属屋根本体は、前記山部から立ち上がる突起部を有しており、
該突起部と該傾斜壁部の上部との間をシートで覆い、該突起部、シート及び山部で囲まれたスペースが形成した後、
前記防水層を形成することを特徴とする請求項７又は８の金属屋根の防水施工方法。 The metal roof body has a protrusion that rises from the mountain portion.
After covering the space between the protrusion and the upper part of the inclined wall portion with a sheet to form a space surrounded by the protrusion, the sheet and the mountain portion,
The method for waterproofing a metal roof according to claim 7 or 8, wherein the waterproof layer is formed. 山部、谷部、両者の間の傾斜壁部、及び該山部から立ち上がる突起部を有する金属屋根本体の上面に防水層を形成する金属屋根の防水施工方法において、
該突起部と該傾斜壁部の上部との間にシートを貼着し、該突起部、シート及び山部で囲まれたスペースを形成した後、前記防水層を形成することを特徴とする金属屋根の防水施工方法。 In a method for waterproofing a metal roof that forms a waterproof layer on the upper surface of a metal roof body having a mountain portion, a valley portion, a sloping wall portion between the two, and a protrusion rising from the mountain portion.
A metal characterized in that a sheet is attached between the protrusion and the upper portion of the inclined wall portion to form a space surrounded by the protrusion, the sheet and the mountain portion, and then the waterproof layer is formed. How to waterproof the roof. 前記シートは合成樹脂または天然樹脂よりなる基材と、該基材に塗着された粘着剤とを有する請求項９又は１０の金属屋根の防水施工方法。 The method for waterproofing a metal roof according to claim 9 or 10, wherein the sheet has a base material made of a synthetic resin or a natural resin and a pressure-sensitive adhesive coated on the base material. 前記シートはブチルテープである請求項９～１１のいずれかの金属屋根の防水施工方法。 The method for waterproofing a metal roof according to any one of claims 9 to 11, wherein the sheet is butyl tape.
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JPS541909U (en) * 1977-06-07 1979-01-08
JPS552132A (en) * 1978-06-19 1980-01-09 Hitachi Cable Method of waterproofing with sheet
GB2191797A (en) * 1986-06-17 1987-12-23 Bpb United Kingdom Ltd Building membrane with attached thermal insulation members
JPH02125051A (en) * 1988-11-01 1990-05-14 Abc Trading Co Ltd Corrugated roof and repair method
JP2011169003A (en) * 2010-02-17 2011-09-01 Hayakawa Rubber Co Ltd Waterproof sheet construction structure and method for constructing the same
JP2019108734A (en) * 2017-12-19 2019-07-04 株式会社秀カンパニー Waterproofing method and waterproof structure for batten seam roof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS541909U (en) * 1977-06-07 1979-01-08
JPS552132A (en) * 1978-06-19 1980-01-09 Hitachi Cable Method of waterproofing with sheet
GB2191797A (en) * 1986-06-17 1987-12-23 Bpb United Kingdom Ltd Building membrane with attached thermal insulation members
JPH02125051A (en) * 1988-11-01 1990-05-14 Abc Trading Co Ltd Corrugated roof and repair method
JP2011169003A (en) * 2010-02-17 2011-09-01 Hayakawa Rubber Co Ltd Waterproof sheet construction structure and method for constructing the same
JP2019108734A (en) * 2017-12-19 2019-07-04 株式会社秀カンパニー Waterproofing method and waterproof structure for batten seam roof

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