JP2009097140A

JP2009097140A - Structure and construction method for repairing existing molded roof

Info

Publication number: JP2009097140A
Application number: JP2007266625A
Authority: JP
Inventors: Hisatsugu Tomioka; 久貢冨岡; Yoshimi Murano; 佳巳村野
Original assignee: Lonseal Corp
Current assignee: Lonseal Corp
Priority date: 2007-10-12
Filing date: 2007-10-12
Publication date: 2009-05-07
Anticipated expiration: 2027-10-12
Also published as: JP5345773B2

Abstract

PROBLEM TO BE SOLVED: To provide a structure and a construction method for repairing an existing molded roof, which enable a new roof composed of a heat insulating material and a waterproof sheet to be connected and fixed to a substrate material on the existing molded roof. SOLUTION: The new roof is constructed by laying the heat insulating material 16 in the state of leaving the existing molded roof 15 as-is, connecting and fixing the heat insulating material 16 to a steel-frame substrate material 14, providing the waterproof sheet 17 in a tensioned state and bonding it. The heat insulating material 16 is connected and fixed to the steel-frame substrate material 14 of the heat insulating material 16 by means of a long nut 22, a holding plate 23A and a screw 24. The long nut 22 is screwed and fixed to an upper end of a hook bolt 11 which is protruded from the existing molded roof 15, and passed through a through-hole 25 which is opened in the heat insulating material 16. The holding plate 23A is superposed on the top surface of the heat insulating material 16 in accordance with the through-hole 25. The screw 24 is passed through a screw passing hole of the holding plate 23A, and screwed and fastened into the threaded hole of the long nut 22. The waterproof sheet 17 is provided in the tensioned state in such a manner as to conceal the holding plate 23A and the screw 24. COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、既存成形屋根をそのまま残し、該既存成形屋根の上に断熱材と防水シートとで新しい屋根として改修する既存成形屋根の改修構造及び改修工法に関する。 The present invention relates to a repair structure and a repair method for an existing molded roof in which an existing molded roof is left as it is, and the existing molded roof is repaired as a new roof with a heat insulating material and a waterproof sheet.

古いスレート系波板の既存成形屋根をそのまま残し、新しく金属系折板よりなる凹凸状の成形屋根を重ねて葺く改修工法が特許文献１〜３に提案されている。また特許文献としては見当たらないが、従来において、図３、図４に示すように、既存成形屋根をそのまま残し、該既存成形屋根の上に断熱材を敷設し、該断熱材を前記既存成形屋根の下地材に連結固定し、かつ、前記断熱材の上に防水シートを張設して接着し、前記断熱材と前記防水シートとで新しい屋根として改修する既存成形屋根の改修工法が行われている。 Patent Documents 1 to 3 propose a repair method in which an existing shaped roof made of an old slate corrugated sheet is left as it is, and an uneven shaped roof made of a new metal folded plate is overlaid. Although not found in the patent literature, conventionally, as shown in FIGS. 3 and 4, the existing molded roof is left as it is, and a heat insulating material is laid on the existing molded roof. A renovation method for an existing molded roof is performed in which a waterproof sheet is stretched and bonded to the base material, and a waterproof sheet is stretched and bonded to the base material to repair the new roof with the heat insulating material and the waterproof sheet. Yes.

特許文献１の改修工法では、新しい成形屋根の固定は、既存成形屋根の鉄骨下地に対してビス等で固定する必要があるが、この改修工法によれば、タッピンねじを既存成形屋根に貫通させて鉄骨下地にねじ込むことにより新しい成形屋根の鉄骨下地を固定している（特許文献１、図１中の符号２０）。 In the repair method of Patent Document 1, it is necessary to fix a new molded roof with a screw or the like on the steel base of the existing molded roof. However, according to this modified method, a tapping screw is passed through the existing molded roof. Then, the steel base of the new molded roof is fixed by screwing into the steel base (Patent Document 1, reference numeral 20 in FIG. 1).

特許文献２の改修工法では、新しい成形屋根の固定は、古いスレート系波板を鉄骨下地に固定しているフックボルトの上端ねじ部を利用してクランプ部材とフレーム部材とからなる複合構造のブラケットを設け、さらにこのブラケットに支持させて屋根受けフレームを設け、この屋根受けフレームの上に新しい金属系折板よりなる凹凸状の成形屋根を葺いている。 In the renovation method of Patent Document 2, a new molded roof is fixed by using a composite structure bracket made up of a clamp member and a frame member using an upper end thread portion of a hook bolt fixing an old slate corrugated sheet to a steel base. Further, a roof receiving frame is provided to be supported by the bracket, and an uneven shaped roof made of a new metal folded plate is placed on the roof receiving frame.

特許文献３の改修工法では、古いスレート系波板を鉄骨下地に固定しているフックボルトの上端ねじ部を利用して通し下地材を設け、この下地材の上に新設屋根（折板金属屋根）を固定している。 In the refurbishment method of Patent Document 3, a base material is provided through the upper threaded portion of a hook bolt that fixes an old slate corrugated sheet to a steel base, and a new roof (folded sheet metal roof) is provided on the base. ) Is fixed.

図３、図４に示す従来の既存成形屋根の改修工法は、まず、図３に示すように、フックボルト１１と座金１２とナット１３により鉄骨下地材１４に固定されたスレート系波板の既存成形屋根１５をそのまま残し、該既存成形屋根１５の上に断熱材１６を敷設し、次いで、防水シート１７を張設する。防水シート１７の張設において、断熱材１６と防水シート１７と接合することはしない。続いて、図４に示すように、防水シート１７に固定金具１８を当て、該固定金具１８の孔にタッピンねじ１９を通し、ドリルによって該タッピンねじ１９を断熱材１６に対して深くねじ込んでいき、さらに該タッピンねじ１９を鉄骨下地材１４にねじ込み固定する。これによって、断熱材１６と防水シート１７とは一定間隔で鉄骨下地材１４に固定されることになる。次いで、カバー２０を、タッピンねじ１９と固定金具（塩化ビニル被覆鋼板）１８に被せて防水シート１７に接合する。カバー２０を防水シート１７に接合するために、カバー２０として塩化ビニル樹脂製シートを使用する場合は、有機溶剤のテトラヒドロフランをカバー２０下面と防水シート１７との間に塗布して溶剤溶着する。
特開２００７−１５４６２５号公報特開２００３−００３６１５号公報特開２００３−１９３６３１号公報 3 and 4, the conventional method of repairing the existing molded roof is as follows. First, as shown in FIG. 3, an existing slate corrugated plate fixed to a steel base material 14 by hook bolts 11, washers 12 and nuts 13 is used. The molded roof 15 is left as it is, a heat insulating material 16 is laid on the existing molded roof 15, and then a waterproof sheet 17 is stretched. When the waterproof sheet 17 is stretched, the heat insulating material 16 and the waterproof sheet 17 are not joined. Subsequently, as shown in FIG. 4, a fixing metal 18 is applied to the waterproof sheet 17, a tapping screw 19 is passed through the hole of the fixing metal 18, and the tapping screw 19 is deeply screwed into the heat insulating material 16 by a drill. Further, the tapping screw 19 is screwed and fixed to the steel base material 14. As a result, the heat insulating material 16 and the waterproof sheet 17 are fixed to the steel base material 14 at regular intervals. Next, the cover 20 is put on the tapping screw 19 and the fixing bracket (vinyl chloride coated steel plate) 18 and joined to the waterproof sheet 17. In order to join the cover 20 to the waterproof sheet 17, when a vinyl chloride resin sheet is used as the cover 20, an organic solvent tetrahydrofuran is applied between the lower surface of the cover 20 and the waterproof sheet 17 and solvent-welded.
JP 2007-154625 A JP 2003-003615 A JP 2003-193631 A

しかしながら、特許文献１〜３の既存成形屋根の改修工法では、（１）屋根の断熱を行うことはできない、（２）折板金属屋根を葺設するのでコストが高く付く、という問題点がある。 However, in the repair method of the existing molded roof of Patent Documents 1 to 3, there is a problem that (1) the roof cannot be insulated, and (2) the cost is high because a folded metal roof is provided. .

他方、特許文献１の既存成形屋根の改修工法と、図３、図４に示す従来の既存成形屋根の改修工法では、ドリルでタッピンねじを打ち込み下地材に固定することが行われる。このため、（１）古いスレート系波板にアスベストが含まれている場合には、タッピンねじで該古いスレート系波板を貫通する時に、アスベストを含んだ粉塵が室内に落下飛散する可能性があり、飛散防止のために、屋根裏に大掛かりな保護対策をしなければならず作業が大変である。また、前記古いスレート系波板がノンアスベストであっても、ドリルでビスを打ち込む際の振動で屋根に付着した埃が落下し、室内の設備等を汚す可能性が大きく、設備等にカバーが必要になり、工事が大掛かりとなり大変である、（２）断熱材上から鉄骨下地に固定金具で断熱材を固定する際に、その下の鉄骨下地を狙ってビスを打ち込むことは、断熱材で見えないだけに、所定の位置からずれる可能性があり、まして、鉄骨下地の幅が小さければなおその危険性が高く、強度に問題をきたす、（３）古いスレート系波板の既存成形屋根をタッピンねじが貫通するので、既存成形屋根は、防水機能を破壊されてしまう、（４）新しい屋根を下地材に連結固定する固定具を次回改修時に再利用できない、という問題点がある。 On the other hand, in the repair method for the existing molded roof of Patent Document 1 and the conventional repair method for the existing molded roof shown in FIGS. 3 and 4, a tapping screw is driven by a drill and fixed to the base material. For this reason, (1) in the case where asbestos is contained in an old slate corrugated plate, there is a possibility that dust containing asbestos may fall and scatter into the room when the old slate corrugated plate is penetrated with a tapping screw. In order to prevent scattering, large protection measures must be taken on the attic, which is difficult. Moreover, even if the old slate corrugated plate is non-asbestos, there is a high possibility that dust attached to the roof will fall due to vibration when a screw is driven with a drill and stain indoor equipment, etc. (2) When fixing the heat insulating material with a fixing bracket from above the heat insulating material to the steel base, it is necessary to use a heat insulating material to drive in the screws under the steel base. There is a possibility of shifting from a predetermined position because it is not visible, and even if the width of the steel frame is small, the risk is still high, causing problems in strength. (3) Existing molded roof of old slate corrugated sheet Since the tapping screw penetrates, there is a problem that the waterproof function of the existing molded roof is destroyed, and (4) the fixture for connecting and fixing the new roof to the base material cannot be reused at the next repair.

本発明は、このような問題点を解決するためになされたものであり、既存成形屋根をそのまま残し、断熱材と防水シートとで新しい屋根として改修するものであって、断熱材及び防水シートからなる新しい屋根を既存成形屋根の下地材に連結固定できて、既存成形屋根をいじらず、既存成形屋根の防水機能を破壊することなく、粉塵が室内に落下飛散することがなく、改修費が安く付き、新しい屋根を下地材に連結固定する固定具を次回改修時に再利用できる、既存成形屋根の改修構造及び改修工法を提供することを目的としている。 The present invention has been made to solve such a problem, leaving the existing molded roof as it is, refurbishing as a new roof with a heat insulating material and a waterproof sheet, from the heat insulating material and the waterproof sheet The new roof can be connected and fixed to the base material of the existing molded roof, the existing molded roof is not messed up, the waterproof function of the existing molded roof is not destroyed, dust does not fall into the room, and repair costs are low The purpose is to provide a renovation structure and renovation method for the existing molded roof, which can reuse the fixture for connecting and fixing the new roof to the base material at the next refurbishment.

上記課題を解決するため、請求項１に記載の発明は、既存成形屋根をそのまま残し、該既存成形屋根の上に断熱材を敷設し、かつ、該断熱材を前記既存成形屋根の下地材に連結固定し、さらに前記断熱材の上に防水シートを張設し、前記断熱材と前記防水シートとで新しい屋根として改修した既存成形屋根の改修構造であって、少なくとも上部及び下部にねじ孔を有し、該ねじ孔の下部を前記既存成形屋根より突出した任意のフックボルトの上端部に対して螺合固定され、前記断熱材に開けられた貫通孔に通され、上端が前記断熱材の上面よりも引っ込んでいる長尺ナットと、ねじ通し孔を有し該ねじ通し孔を前記断熱材の上面に開いた前記貫通孔に合わせて前記断熱材の上面に重ねられた押えプレートと、上方から前記押えプレートのねじ通し孔に通され前記長尺ナットのねじ孔に螺合し締め付けるビスねじと、により前記断熱材の前記下地材に対する連結固定が行われ、前記防水シートが、前記押えプレート及び前記ビスねじを隠して張設され固着された、既存成形屋根の改修構造としたことを特徴とする。 In order to solve the above-mentioned problems, the invention according to claim 1 leaves the existing molded roof as it is, lays a heat insulating material on the existing molded roof, and uses the heat insulating material as a base material for the existing molded roof. A fixed structure, a waterproof sheet is stretched on the heat insulating material, and the existing roof is repaired as a new roof with the heat insulating material and the waterproof sheet. At least the upper and lower screw holes are provided. The lower part of the screw hole is screwed and fixed to the upper end of an arbitrary hook bolt protruding from the existing molded roof, passed through a through hole opened in the heat insulating material, and the upper end of the heat insulating material A long nut that is retracted from the upper surface; a presser plate that has a threaded hole and is overlaid on the upper surface of the heat insulating material in accordance with the through hole that is opened in the upper surface of the heat insulating material; From the presser plate screw A screw screw that is passed through a hole and screwed into a screw hole of the long nut and tightened, and the heat insulating material is connected and fixed to the base material, and the waterproof sheet conceals the presser plate and the screw screw. It is characterized by a modified structure of an existing molded roof that is stretched and fixed.

請求項２に記載の発明は、請求項１に記載の構成に加え、前記既存成形屋根と前記断熱材との間に、前記フックボルトを避けて敷設され人が載っても実質的に撓まない養生板を備えた、ことを特徴とする。 In addition to the structure of Claim 1, the invention of Claim 2 is laid between the existing molded roof and the heat insulating material so as to avoid the hook bolts and substantially bends even if a person is placed. It is characterized by having no curing plate.

請求項３に記載の発明は、請求項１叉は２に記載の構成に加え、前記防水シートの固着は、前記押えプレートが前記防水シートの上から誘導加熱されかつ押圧され、前記押えプレートの上面に塗布された前記ホットメルト接着剤により前記防水シートと前記押えプレートとが固着された、ことを特徴とする。 According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, the waterproof sheet is fixed by inductively heating and pressing the presser plate from above the waterproof sheet. The waterproof sheet and the presser plate are fixed by the hot melt adhesive applied to the upper surface.

請求項４に記載の発明は、請求項１叉は２に記載の構成に加え、前記防水シートの固着は、前記防水シートと前記断熱材との密着面に塗布した接着剤により接着された、ことを特徴とする。 The invention according to claim 4 is the structure according to claim 1 or 2, and the fixing of the waterproof sheet is adhered by an adhesive applied to a contact surface between the waterproof sheet and the heat insulating material. It is characterized by that.

請求項５に記載の発明は、既存成形屋根をそのまま残し、該既存成形屋根の上に断熱材を敷設し、該断熱材を前記既存成形屋根の下地材に連結固定し、かつ、前記断熱材の上に防水シートを張設して接着し、前記断熱材と前記防水シートとで新しい屋根として改修する既存成形屋根の改修工法であって、前記断熱材と前記防水シートとを設ける前に、少なくとも上部及び下部にねじ孔を有する長尺ナットを前記既存成形屋根より突出した任意のフックボルトの上端部に対して螺合し固定し、次いで、該断熱材を前記既存成形屋根の上に敷設し、かつ、該断熱材に貫通孔を開けて該貫通孔に前記長尺ナットを通し、次いで、中央にねじ通し孔を有し該ねじ通し孔を前記断熱材の上面に開いた前記貫通孔に合わせて前記断熱材の上面に重ねられかつ少なくとも上面にホットメルト樹脂が塗布された押えプレートを前記貫通孔に同心させて該断熱材の上に重ね、ビスねじを押えプレートのねじ通し孔に通して前記長尺ナットに螺合し締め付け、次いで、前記断熱材の上に前記防水シートを張設し、該防水シートの上から前記押えプレートを誘導加熱して該押えプレートの上面に形成されたホットメルト樹脂膜を溶融して該押えプレートの上面と該防水シートとを固着する、既存成形屋根の改修工法としたことを特徴とする。 The invention according to claim 5 leaves the existing molded roof as it is, lays a heat insulating material on the existing molded roof, connects and fixes the heat insulating material to the base material of the existing molded roof, and the heat insulating material A waterproof sheet is stretched over and bonded, and a renovation method for an existing molded roof that is refurbished as a new roof with the heat insulating material and the waterproof sheet, before providing the heat insulating material and the waterproof sheet, A long nut having screw holes at least at the upper part and the lower part is screwed and fixed to the upper end portion of an arbitrary hook bolt protruding from the existing molded roof, and then the heat insulating material is laid on the existing molded roof And a through hole is formed in the heat insulating material, the long nut is passed through the through hole, and a screw through hole is formed in the center, and the screw through hole is opened on the upper surface of the heat insulating material. Is it overlaid on top of the thermal insulation At least the upper surface of the press plate coated with hot melt resin is concentric with the through-hole and overlaid on the heat insulating material, and screw screws are passed through the press-through holes of the press plate and screwed into the long nuts and tightened. Next, the waterproof sheet is stretched on the heat insulating material, the presser plate is induction-heated from the waterproof sheet to melt the hot melt resin film formed on the upper surface of the presser plate, and the presser plate The upper surface of the roof and the waterproof sheet are fixed, and the existing roof is repaired.

請求項６に記載の発明は、請求項５に記載の構成に加え、前記既存成形屋根の上に、人が載っても実質的に撓まない養生板を前記フックボルトを避けて敷設し、次いで、前記断熱材の敷設を行う、ことを特徴とする。
請求項７に記載の発明は、請求項５叉は６に記載の構成に加え、前記防水シートの固着は、前記防水シートの上から誘導加熱手段により前記押えプレートを押圧して誘導加熱し、前記押えプレートの上面に塗布した前記ホットメルト接着剤を溶融してから押圧を確保して誘導加熱を停止し冷却することにより前記防水シートと前記押えプレートとを溶着する、ことを特徴とする。 In addition to the structure of Claim 5, the invention of Claim 6 lays a curing plate on the existing molded roof that does not substantially bend even if a person is placed, avoiding the hook bolt, Next, the heat insulating material is laid.
The invention according to claim 7 is the structure according to claim 5 or 6, and the fixing of the waterproof sheet is performed by induction heating by pressing the presser plate from above the waterproof sheet by induction heating means, The waterproof sheet and the presser plate are welded by securing the press after melting the hot melt adhesive applied to the upper surface of the presser plate, stopping induction heating and cooling.

請求項８に記載の発明は、請求項５叉は６に記載の構成に加え、前記防水シートの固着は、前記防水シートの敷設に際して、前記防水シートと前記断熱材との密着面に接着剤を塗布することにより接着する、ことを特徴とする。 According to an eighth aspect of the present invention, in addition to the constitution of the fifth or sixth aspect, the waterproof sheet is adhered to an adhesive surface between the waterproof sheet and the heat insulating material when the waterproof sheet is laid. It adheres by apply | coating. It is characterized by the above-mentioned.

請求項１及び請求項５に記載の発明によれば、既存成形屋根をそのまま残し、断熱材と防水シートとで新しい屋根として改修するものであって、断熱材及び防水シートからなる新しい屋根を既存成形屋根の下地材に連結固定できて、既存成形屋根をいじらず、既存成形屋根の防水機能を破壊することなく、粉塵が室内に落下飛散することがなく、改修費が安く付き、新しい屋根面には防水シートの他に何もないので奇麗に仕上がり、さらに、新しい屋根を下地材に連結固定する固定具（長尺ナット等）を次回改修時に再利用できる。 According to the invention described in claim 1 and claim 5, the existing molded roof is left as it is, and the heat insulating material and the waterproof sheet are repaired as a new roof. It can be connected and fixed to the base material of the molded roof, does not tamper with the existing molded roof, does not destroy the waterproof function of the existing molded roof, dust does not fall and scatter into the room, repair costs are low, and the new roof surface Since there is nothing other than a waterproof sheet, it finishes cleanly, and fixtures (long nuts etc.) that connect and fix the new roof to the base material can be reused at the next repair.

請求項２及び請求項６に記載の発明によれば、既存成形屋根の上に、人が載っても実質的に撓まない養生板をフックボルトを避けて敷設するから、フックボルトを利用して長尺ナットを取り付けることが阻害されず、改修工事の施工開始から施工終了後まで、屋根に人が載ることで既存成形屋根、特にスレート屋根を破損する惧れがない。 According to the second and sixth aspects of the invention, since a curing plate that does not substantially bend even if a person is placed is laid on the existing molded roof while avoiding the hook bolt, the hook bolt is used. The installation of long nuts is not hindered, and there is no possibility of damaging existing molded roofs, in particular, slate roofs, when people are placed on the roof from the start of the repair work to the end of the work.

請求項３及び請求項７に記載の発明によれば、防水シートの上から押えプレートを誘導加熱して押えプレートの上面に形成されたホットメルト樹脂膜を溶融して該押えプレートの上面と該防水シートとを固着するので、防水シートの敷設状態の調整が容易に行えると共に、防水シートの敷設固定作業を極めて迅速に行える。 According to the invention described in claim 3 and claim 7, the press plate is induction-heated from above the waterproof sheet to melt the hot melt resin film formed on the top surface of the press plate, and the upper surface of the press plate and the press plate Since the waterproof sheet is fixed, the installation state of the waterproof sheet can be easily adjusted, and the waterproof sheet can be fixed and fixed very quickly.

請求項４及び請求項８に記載の発明によれば、防水シートの敷設固定作業を極めて強固に行える。 According to invention of Claim 4 and Claim 8, the installation fixing work of a waterproof sheet can be performed very firmly.

以下に本発明の実施の形態に係る既存成形屋根の改修構造及び改修工法を図面を参照して説明する。 The repair structure and repair method of an existing molded roof according to an embodiment of the present invention will be described below with reference to the drawings.

〔実施の形態１〕
まず、既存成形屋根の改修構造について図１を参照して説明する。 [Embodiment 1]
First, the repair structure of the existing molded roof will be described with reference to FIG.

この実施の形態の既存成形屋根の改修構造は、既存成形屋根１５の一例として、スレート系波板よりなる既存成形屋根を示している。既存成形屋根１５を防水機能を壊さないために一切孔を開けず、該既存成形屋根１５をそのまま残し、まず該既存成形屋根１５の上に人が載っても実質的に撓まない養生板２６を前記フックボルト１１を避けて敷設し、既存成形屋根１５より突出した任意のフックボルト１１の上端部を利用し、長尺ナット２２を螺合し固定し、さらにその上にポリスチレンフォームからなる断熱材１６の上に押えプレート２３Ａを当ててビスねじ２４を長尺ナット２２に螺合し締め付けることで、該断熱材１６を既存成形屋根１５の鉄骨下地材１４に連結固定し、最後に断熱材１６の上に防水シート１７を張設し、断熱材１６と防水シート１７とで新しい屋根として改修する構成である。ここで用いる断熱材１６は、ポリエチレンフォームからなる例えば厚さ１〜２ｍｍの絶縁シート（不図示）を上面に積層したものを用いる。なお、断熱材１６を敷設した後に絶縁シートを敷設しても良い。 The repair structure of the existing molded roof of this embodiment shows an existing molded roof made of a slate corrugated sheet as an example of the existing molded roof 15. In order not to break the waterproof function of the existing molded roof 15, no holes are formed, and the existing molded roof 15 is left as it is. First, the curing plate 26 that does not substantially bend even if a person is placed on the existing molded roof 15. Is installed by avoiding the hook bolt 11 and using the upper end portion of an arbitrary hook bolt 11 protruding from the existing roof 15, a long nut 22 is screwed and fixed, and a heat insulation made of polystyrene foam is further formed thereon. The heat insulating material 16 is connected and fixed to the steel base material 14 of the existing roof 15 by applying the presser plate 23A on the material 16 and screwing the screw 24 to the long nut 22 and tightening, and finally the heat insulating material. The waterproof sheet 17 is stretched on the roof 16 and the heat insulating material 16 and the waterproof sheet 17 are used as a new roof. As the heat insulating material 16 used here, for example, an insulating sheet (not shown) made of polyethylene foam and having a thickness of 1 to 2 mm is laminated on the upper surface. Note that an insulating sheet may be laid after the heat insulating material 16 is laid.

図３、図４に示す従来の既存成形屋根の改修構造では、既存成形屋根をそのまま残し、その上に断熱材を敷設し、次に防水シートを張設して、最後に防水シート及び断熱材を下地材に対して連結固定するものであるのに対して、実施の形態１の既存成形屋根の改修構造は、養生板２６を敷設すること、長尺ナット２２を取り付けること、絶縁シート（不図示）を上面に積層した断熱材１６を敷設し鉄骨下地材１４に対する連結固定を行うこと、及び最後に防水シート１７の張設固定を行うこと、を内容とするものである。 3 and FIG. 4, in the conventional structure for repairing an existing molded roof, the existing molded roof is left as it is, a heat insulating material is laid thereon, a waterproof sheet is then stretched, and finally the waterproof sheet and the heat insulating material are provided. In contrast, the existing molded roof refurbishment structure of the first embodiment is constructed by laying a curing plate 26, attaching a long nut 22, and insulating sheets (non-conductive). The heat insulating material 16 laminated on the upper surface is laid and fixed to the steel base material 14, and finally the waterproof sheet 17 is stretched and fixed.

養生板２６の敷設は、既存成形屋根１５がスレート系波板であるときに、新設屋根の改修工事において人が載ることにより、既存成形屋根１５が破損するのを回避するために設ける。養生板２６は、人が載っても実質的に撓まない強度があれば肉厚や断面構造等に限定はない。資材コストが安いほどよい。この養生板２６は、既存成形屋根１５に対して完全に敷き詰める必要はなく、また、断熱材１６敷設と同時に取り除いてもよい。改修工事後は、この養生板２６は、見えないのであるが、人が不用意に載っても、既存成形屋根１５が破損しなければ良い。この養生板２６は、例えばパンチングメタルであっても良い。 The laying of the curing plate 26 is provided in order to prevent the existing molded roof 15 from being damaged when a person is placed in the renovation work of the new roof when the existing molded roof 15 is a slate corrugated sheet. As long as the curing plate 26 has a strength that does not substantially bend even if a person is placed on the curing plate 26, there is no limitation on the thickness, the cross-sectional structure, and the like. The lower the material cost, the better. The curing plate 26 does not need to be completely spread over the existing molded roof 15 and may be removed at the same time as the heat insulating material 16 is laid. Although the curing plate 26 is not visible after the renovation work, it is sufficient that the existing molded roof 15 is not damaged even if a person carelessly places it. The curing plate 26 may be a punching metal, for example.

断熱材１６（絶縁シートも含む）の鉄骨下地材１４に対する連結固定は、断熱材１６を敷設する前に既存成形屋根１５より突出した任意のフックボルト１１の上端部を利用し、長尺ナット２２を螺合し固定し、そして、断熱材１６を敷設し、その後、押えプレート２３Ａと、ビスねじ２４とにより行うものである。断熱材１６の上面に積層するポリエチレンフォームからなる絶縁シート（不図示）は、防水シートに含まれる可塑剤等の添加剤がポリスチレンフォームへ移行し該ポリスチレンフォームが変質するのを防止する役目を果たす。最後に防水シート１７を張設するので、固定手段を隠蔽する綺麗な外観が確保され、防水シート１７に対するビス等により貫通し防水性を破壊する行為は一切行わないから、防水性が完全に確保される。 The fixing of the heat insulating material 16 (including the insulating sheet) to the steel base material 14 uses the upper end of any hook bolt 11 protruding from the existing roof 15 before laying the heat insulating material 16, and a long nut 22. Are screwed and fixed, and the heat insulating material 16 is laid, and thereafter, the holding plate 23A and the screw screw 24 are used. An insulating sheet (not shown) made of polyethylene foam laminated on the upper surface of the heat insulating material 16 serves to prevent additives such as plasticizers contained in the waterproof sheet from moving to the polystyrene foam and deteriorating the polystyrene foam. . Finally, the waterproof sheet 17 is stretched to ensure a clean appearance that hides the fixing means, and the waterproof sheet 17 is not penetrated by screws or the like to destroy the waterproof property, so the waterproofness is completely secured. Is done.

長尺ナット２２には、上下に貫通するねじ孔(符号なし)を有する長尺の六角ナットを使用するのが好ましい。長尺ナット２２の取り付けには、既存成形屋根１５より突出した任意のフックボルト１１の上端部を金ブラシで磨いて、該フックボルト１１の上端部に対して長尺ナット２２を螺合して固定するのが良い。もって、長尺ナット２２は、断熱材１６の厚さに対応してフックボルト１１に長く継ぎ足した状態とされている。長尺ナット２２は、断熱材１６に開けられた貫通孔２５に通されるが、上端が断熱材１６の上面よりも引っ込んでいる。フックボルト１１のねじ山部が腐食している場合もあるので、長尺ナット２２とフックボルト１１とは接着剤による固定、ねじ結合＋接着剤による連結固定を図るか、或いは長尺ナット２２とフックボルト１１とを溶接しても良い。さらにさび止めを行う。長尺ナット２２は、市販の長尺な六角ナットを使用することが好ましいが、外面が六角形でなく例えば円筒であっても良い。 As the long nut 22, it is preferable to use a long hexagon nut having a screw hole (not indicated) penetrating vertically. To attach the long nut 22, the upper end of an arbitrary hook bolt 11 protruding from the existing roof 15 is polished with a gold brush, and the long nut 22 is screwed to the upper end of the hook bolt 11. It is good to fix. Therefore, the long nut 22 is in a state of being extended to the hook bolt 11 correspondingly to the thickness of the heat insulating material 16. The long nut 22 is passed through the through hole 25 opened in the heat insulating material 16, but the upper end is retracted from the upper surface of the heat insulating material 16. Since the threaded portion of the hook bolt 11 may be corroded, the long nut 22 and the hook bolt 11 may be fixed with an adhesive, screwed and connected with an adhesive, or the long nut 22 The hook bolt 11 may be welded. Further rust prevention. The long nut 22 is preferably a commercially available long hexagon nut, but the outer surface may be a cylinder instead of a hexagon.

押えプレート２３Ａは、ステンレス薄板或いは薄肉鋼板等の誘導加熱性金属プレート材をプレス加工で円形に打ち抜きかつ中央にねじ通し孔(符号なし)を開け、ねじ通し孔の周囲を逆三角錐状に窪ませた形状に形成されたプレート本体２３ａと、該プレート本体２３ａの上面或いは上下面に塗布されたホットメルト樹脂皮膜（符号なし）と、前記プレート本体２３ａの下面に重ねられた断熱シート２３ｂとからなる。該押えプレート２３Ａは、ねじ通し孔を断熱材１６の上面に開いた貫通孔２５に合わせ、断熱シート２３ｂを断熱材１６の上面に重ねられる。 The presser plate 23A is formed by punching an induction-heatable metal plate material such as a stainless steel plate or a thin steel plate into a circular shape by pressing and forming a screw hole (not indicated) in the center, and the periphery of the screw hole is recessed in an inverted triangular pyramid shape. A plate main body 23a formed in a curved shape, a hot-melt resin film (not indicated) applied to the upper surface or upper and lower surfaces of the plate main body 23a, and a heat insulating sheet 23b superimposed on the lower surface of the plate main body 23a. Become. The presser plate 23 A has a screw-through hole aligned with the through hole 25 opened on the upper surface of the heat insulating material 16, and the heat insulating sheet 23 b is overlapped on the upper surface of the heat insulating material 16.

ビスねじ２４は、皿小ねじが使用され、上方から押えプレート２３Ａのねじ通し孔に通され長尺ナット２２のねじ孔と螺合し締め付けられている。押えプレート２３Ａは、ビスねじ２４の締め付けが強く行われることにより、断熱材１６に強く押圧し鉄骨下地材１４に固定している。 A countersunk screw is used for the screw screw 24. The screw screw 24 is passed through the screw through hole of the presser plate 23A from above and is screwed into the screw hole of the long nut 22 to be tightened. The presser plate 23 A is firmly pressed against the heat insulating material 16 and fixed to the steel base material 14 by tightening the screw screws 24 strongly.

防水シート１７は、押えプレート２３Ａ及びビスねじ２４を隠すように張設される。防水シート１７と押えプレート２３Ａの上面とは接合され、防水シート１７は断熱材１６に接合されない。上述したように、押えプレート２３Ａは、ホットメルト樹脂皮膜が被覆されプレート本体２３ａと、断熱シート２３ｂとからなる構成である。このため、防水シート１７の張設後に、防水シート１７の上方から誘導加熱されることにより、防水シート１７と押えプレート２３Ａの上面とは接合される。 The waterproof sheet 17 is stretched so as to hide the presser plate 23 A and the screw screw 24. The waterproof sheet 17 and the upper surface of the presser plate 23 A are joined, and the waterproof sheet 17 is not joined to the heat insulating material 16. As described above, the presser plate 23A is configured by the hot melt resin film and the plate body 23a and the heat insulating sheet 23b. For this reason, after the waterproof sheet 17 is stretched, the waterproof sheet 17 and the upper surface of the presser plate 23 A are joined by induction heating from above the waterproof sheet 17.

次に、上記構成の既存成形屋根の改修工法を説明する。
この改修工法は、既存成形屋根１５をそのまま残し、養生板２６を前記フックボルト１１を避けて敷設し、該養生板２６を足場として作業を続行する。まず、既存成形屋根１５より突出した任意のフックボルト１１の上端部に対して上下に貫通するねじ孔を有する長尺ナット２２を螺合し固定する。次に、上面に絶縁シート（不図示）を積層した断熱材１６を敷設位置に合わせて長尺ナット２２に強く押し付けることにより、該断熱材１６の下面に凹部を形成し、該凹部に合わせてドリルで貫通孔２５を設ける。該貫通孔２５を有する断熱材１６を再度敷設位置に合わせ貫通孔２５に前記長尺ナット２２を通すようにして、該断熱材１６を既存成形屋根１５の上に敷設する。次いで、ホットメルト樹脂皮膜が被覆されたプレート本体２３ａと断熱シート２３ｂとからなる押えプレート２３Ａを貫通孔２５に同心させて断熱材１６の上に重ね、ビスねじ２４を押えプレート２３Ａのねじ通し孔に通して長尺ナット２２に螺合し強く締め付ける。これによって、押えプレート２３Ａが断熱材１６を既存成形屋根１５の上に強く押し付けると共に、長尺ナット２２と押えプレート２３Ａとビスねじ２４とによって断熱材１６を鉄骨下地材１４に連結固定したことになる。次いで、断熱材１６の上に防水シート１７を張設していき、緊張状態を保って、防水シート１７の上方から誘導加熱装置の誘導加熱ヘッドを押えプレート２３Ａに対峙させ、押えプレート２３Ａを誘導加熱することによりホットメルト樹脂を溶融させる。そして、押え付け具（不図示）で防水シート１７の上から押えプレート２３Ａを抑えていると、わずかな時間経過すると、ホットメルト樹脂が速やかに冷却し、押えプレート２３Ａの上面と防水シート１７とがホットメルト樹脂で接合される。断熱シート２３ｂは、プレート本体２３ａが誘導加熱される際に、ポリスチレンフォームからなる断熱材１６が溶融し流動してしまうのを防ぐ役目を果たす。 Next, a method for repairing the existing molded roof having the above configuration will be described.
In this repair method, the existing molded roof 15 is left as it is, the curing plate 26 is laid around the hook bolt 11, and the work is continued using the curing plate 26 as a scaffold. First, a long nut 22 having a screw hole penetrating vertically with respect to an upper end portion of an arbitrary hook bolt 11 protruding from the existing molded roof 15 is screwed and fixed. Next, a heat insulating material 16 in which an insulating sheet (not shown) is laminated on the upper surface is strongly pressed against the long nut 22 in accordance with the laying position, thereby forming a concave portion on the lower surface of the heat insulating material 16 and aligning with the concave portion. The through hole 25 is provided with a drill. The heat insulating material 16 having the through hole 25 is again aligned with the laying position, and the long nut 22 is passed through the through hole 25 so that the heat insulating material 16 is laid on the existing roof 15. Next, a holding plate 23A composed of a plate body 23a and a heat insulating sheet 23b coated with a hot melt resin film is concentric with the through-hole 25 and stacked on the heat insulating material 16, and screw screws 24 are screwed through the holding plate 23A. Is screwed into the long nut 22 and tightened strongly. Accordingly, the presser plate 23A strongly presses the heat insulating material 16 onto the existing molded roof 15, and the heat insulating material 16 is connected and fixed to the steel base material 14 by the long nut 22, the presser plate 23A and the screw screw 24. Become. Next, the waterproof sheet 17 is stretched on the heat insulating material 16, and the tensioned state is maintained. From the upper side of the waterproof sheet 17, the induction heating head of the induction heating device is opposed to the press plate 23A to guide the press plate 23A. The hot melt resin is melted by heating. If the presser plate 23A is held from above the waterproof sheet 17 by a presser (not shown), the hot melt resin quickly cools after a short time, and the upper surface of the presser plate 23A and the waterproof sheet 17 Are joined with hot melt resin. The heat insulating sheet 23b serves to prevent the heat insulating material 16 made of polystyrene foam from melting and flowing when the plate body 23a is induction-heated.

上記実施の形態１によれば、断熱材１６と防水シート１７とで新しい屋根として改修することができる。断熱材１６の鉄骨下地材１４に対する連結固定は、長尺ナット２２と、押えプレート２３Ａとビスねじ２４とにより行うものであり、長尺ナット２２を既存成形屋根１５より突出した任意のフックボルト１１の上端部に対して螺合し固定するものであるから、断熱材１６を敷設することが容易であり、断熱材１６を鉄骨下地材１４に連結固定することが容易である。そして、断熱材１６を鉄骨下地材１４に連結固定するに際して、既存成形屋根１５に孔を開けないので、既存成形屋根１５の防水機能を破壊することなく、粉塵が室内に落下飛散することがない。上記実施の形態１によれば、屋根材料及び取り付け工事を含む改修費が金属屋根で改修する場合に比べてはるかに安く付く。次回改修時には、新しい屋根を鉄骨下地材１４に連結固定する固定具を再利用できる。 According to the first embodiment, the heat insulating material 16 and the waterproof sheet 17 can be repaired as a new roof. The insulation fixing of the heat insulating material 16 to the steel base material 14 is performed by the long nut 22, the presser plate 23 A and the screw screw 24, and an arbitrary hook bolt 11 in which the long nut 22 protrudes from the existing molded roof 15. Therefore, it is easy to lay the heat insulating material 16 and to connect and fix the heat insulating material 16 to the steel base material 14. And when connecting and fixing the heat insulating material 16 to the steel base material 14, the existing molded roof 15 is not perforated, so that dust does not fall and scatter in the room without destroying the waterproof function of the existing molded roof 15. . According to the first embodiment, the repair cost including the roof material and the installation work is much cheaper than when repairing with a metal roof. At the time of the next refurbishment, the fixture for connecting and fixing the new roof to the steel base material 14 can be reused.

〔実施の形態２〕
この実施の形態の既存成形屋根の改修構造は、押えプレート２３Ｂが実施の形態１の押えプレート２３Ａと相違し、その他の構成は実施の形態１と同一である。押えプレート２３Ｂは、長尺な帯板２３ａ’の下面に断熱シート２３ｂ’を積層しフックボルト１１に取り付ける長尺ナット２２の配列ピッチに等しくボルト通し穴を開けてなる。従って、押えプレート２３Ａが一定ピッチ毎のポイントで断熱材１６を固定しているのに対して、押えプレート２３Ｂは、連続一直線に（又は断続させて）断熱材１６を固定する構成である。 [Embodiment 2]
In the renovation structure of the existing molded roof of this embodiment, the presser plate 23B is different from the presser plate 23A of the first embodiment, and other configurations are the same as those of the first embodiment. The presser plate 23B is formed by laminating a heat insulating sheet 23b ′ on the lower surface of the long band plate 23a ′ and making bolt through holes equal to the arrangement pitch of the long nuts 22 attached to the hook bolts 11. Therefore, while the presser plate 23A fixes the heat insulating material 16 at points at constant pitches, the presser plate 23B is configured to fix the heat insulating material 16 in a continuous straight line (or intermittently).

一通り説明すると、この既存成形屋根の改修構造は、スレート系波板よりなる既存成形屋根１５をそのまま残し、該既存成形屋根１５の上に養生板２６を敷設し、既存成形屋根１５より突出した任意のフックボルト１１の上端ねじ部に長尺ナット２２を取り付け、養生板２６の上に、上面にポリエチレンフォームからなる例えば厚さ１〜２ｍｍの絶縁シート（不図示）を積層したポリスチレンフォームの断熱材１６と敷設する。次に、長尺な押えプレート２３Ｂを断熱材１６の上面の長尺ナット２２と対応する位置に置き、ビスねじ２４を押えプレート２３Ｂに開けたボルト通し穴に通し長尺ナット２２に螺合し締め付けることにより、断熱材１６を長尺な押えプレート２３Ｂで押さえ付けた状態で既存成形屋根１５の鉄骨下地材１４に連結固定状態とし、最後に断熱材１６の上に防水シート１７を張設する。押えプレート２３Ｂは、ステンレス製の帯板よりプレス加工され下面両縁に着座部を有すると共に、ビスねじ２４を通す孔を有し穴の周囲が窪んで下面に着座部を有し、上面前面にホットメルト接着剤が塗布されている。それゆえ、防水シート１７の固着は、防水シート１７の上から誘導加熱手段（不図示）により押えプレート２３Ｂを押圧して誘導加熱し、押圧を確保してホットメルト接着剤を溶融し、その後、押圧を確保して誘導加熱を停止し冷却することにより防水シート１７と押えプレート２３Ｂとを接合する。この接合は接合強度を確保できれば長尺な押えプレート２３Ｂ対して、部分的でも全長に渡って行ってもよい。 Explaining in a general manner, this renovation structure of the existing molded roof leaves the existing molded roof 15 made of a slate corrugated sheet as it is, and a curing plate 26 is laid on the existing molded roof 15 and protrudes from the existing molded roof 15. Insulation of polystyrene foam in which a long nut 22 is attached to the upper end thread portion of an arbitrary hook bolt 11, and an insulating sheet (not shown) made of polyethylene foam is laminated on the upper surface of the curing plate 26, for example, having a thickness of 1 to 2 mm. Laying with material 16. Next, the long presser plate 23B is placed at a position corresponding to the long nut 22 on the upper surface of the heat insulating material 16, and the screw screw 24 is threaded into the long nut 22 through the bolt through hole formed in the presser plate 23B. By tightening, the heat insulating material 16 is connected and fixed to the steel base material 14 of the existing roof 15 in a state where the heat insulating material 16 is pressed by the long press plate 23B, and finally the waterproof sheet 17 is stretched on the heat insulating material 16. . The presser plate 23B is pressed from a stainless steel strip and has seating portions on both edges of the lower surface, and has a hole through which the screw screw 24 is passed, and the periphery of the hole is recessed and has a seating portion on the lower surface. A hot melt adhesive is applied. Therefore, the fixing of the waterproof sheet 17 is performed by inductively heating the presser plate 23B from above the waterproof sheet 17 by induction heating means (not shown), ensuring the press and melting the hot melt adhesive, The waterproof sheet 17 and the presser plate 23B are joined by securing the press and stopping the induction heating and cooling. This bonding may be performed partially or over the entire length of the long presser plate 23B as long as the bonding strength can be secured.

この実施の形態の既存成形屋根の改修構造も、実施の形態１と同じで、最後に防水シート１７を張設し誘導加熱を利用して防水シート１７の上から該防水シート１７と押えプレート２３Ｂとのホットメルト接着を行うものであるので、固定手段を隠蔽する綺麗な外観が確保され、防水シート１７に対するビス等により貫通し防水性を破壊する行為は一切行わないから、防水性が完全に確保される。 The repair structure of the existing molded roof of this embodiment is the same as that of the first embodiment. Finally, the waterproof sheet 17 is stretched and the waterproof sheet 17 and the presser plate 23B are applied from above the waterproof sheet 17 using induction heating. Because it is a hot melt adhesive, a beautiful appearance that hides the fixing means is ensured, and the waterproof sheet 17 is not penetrated by a screw or the like to destroy the waterproof property. Secured.

〔その他の実施の形態〕
以上、図面を参照して実施の形態１、２を説明したが、本発明は、これに限定されるものではなく、要旨を逸脱しない限度で種々の設計変更や工程の変更が可能であり、そのような変更を技術的範囲に含むものである。 [Other Embodiments]
As described above, the first and second embodiments have been described with reference to the drawings, but the present invention is not limited to this, and various design changes and process changes can be made without departing from the scope of the invention. Such changes are included in the technical scope.

上記実施の形態１では、既存成形屋根１５がスレート系波板である場合を示したが、本発明は、既存成形屋根１５よりフックボルト１１の上端部が突出している構成であれば、該既存成形屋根１５が金属系折板等である場合も技術的範囲に含む。また、鉄骨下地材１４は、Ｌ型アングル材に限定されず、根太やチャンネル材、Ｃチャンネル材等の下地材である場合を当然に含むものである。既存成形屋根１５がスレート系波板ではなくて、金属系折板であり、人が載っても凹まない十分な強度がある場合には、養生板２６は不要である。 In the first embodiment, the case where the existing molded roof 15 is a slate corrugated sheet is shown. However, the present invention has the configuration in which the upper end portion of the hook bolt 11 protrudes from the existing molded roof 15. The case where the molded roof 15 is a metal folded plate or the like is also included in the technical scope. Further, the steel base material 14 is not limited to the L-shaped angle material, and naturally includes cases where the base material is a joist, a channel material, a C channel material, or the like. When the existing molded roof 15 is not a slate corrugated plate but a metal folded plate and has a sufficient strength not to be recessed even if a person is placed on it, the curing plate 26 is unnecessary.

上記実施の形態１、２では、断熱材１６がポリスチレンフォームである場合を示したが、本発明は、断熱材１６がウレタンフォーム、あるいはフェノールフォーム等である場合も技術的範囲に含むものである。断熱材１６にウレタンフォーム、あるいはフェノールフォームを使用する場合は、防水シート１７に含まれる可塑剤等の添加剤の移行・変質の惧れがないので、上記実施の形態１、２で採用する断熱材１６の上面に積層する絶縁シートは不要になる。また、断熱材１６として、ポリスチレンフォームよりも耐熱性があるウレタンフォーム、フェノールフォームのような架橋樹脂製フォームを使用すると、誘導加熱で防水シート１７を押えプレート２３Ａまたは２３Ｂに接合する場合、誘導加熱の熱により変形しないため下面に設けられる断熱シート２３ｂまたは２３ｂ’も必要ではなくなる。 In the said Embodiment 1, 2, although the case where the heat insulating material 16 was a polystyrene foam was shown, this invention includes the case where the heat insulating material 16 is a urethane foam, a phenol foam, etc. in a technical scope. When urethane foam or phenol foam is used for the heat insulating material 16, there is no fear of migration or alteration of additives such as plasticizers contained in the waterproof sheet 17. The insulating sheet laminated on the upper surface of the material 16 becomes unnecessary. In addition, when a foamed resin foam such as a urethane foam or a phenolic foam that is more heat resistant than polystyrene foam is used as the heat insulating material 16, when the waterproof sheet 17 is joined to the holding plate 23A or 23B by induction heating, induction heating is performed. Therefore, the heat insulating sheet 23b or 23b ′ provided on the lower surface is not necessary because it is not deformed by the heat.

上記実施の形態１、２では、誘導加熱を利用して防水シート１７の上から該防水シート１７と押えプレート２３Ａまたは２３Ｂとのホットメルト接着を行うことを示したが、防水シート１７の固着は、この接着方法に限定されない。他例として、防水シート１７の敷設に際して、防水シート１７と断熱材１６との密着面に接着剤を塗布することにより接着してもよく、本発明は、このような場合を含むものである。接着剤としては、水系接着剤のほか、溶剤系接着剤を選定することができる。溶剤系接着剤としては、例えば、ニトリル系、ＳＢＲ系等のゴム系接着剤、エポキシ樹脂系接着剤、ウレタン系接着剤などの接着剤を用いることができる。
防水シート１７と断熱材１６とを接着固定する場合は、誘導加熱を行うときに必要とした、押えプレート２３Ａまたは２３Ｂ上のホットメルト樹脂層及び断熱シートは不要である。 In the first and second embodiments, it has been shown that hot-melt adhesion between the waterproof sheet 17 and the presser plate 23A or 23B is performed from above the waterproof sheet 17 using induction heating. The bonding method is not limited to this. As another example, when the waterproof sheet 17 is laid, the waterproof sheet 17 and the heat insulating material 16 may be bonded by applying an adhesive, and the present invention includes such a case. As an adhesive, a solvent-based adhesive can be selected in addition to a water-based adhesive. As the solvent-based adhesive, for example, a nitrile-based or SBR-based rubber-based adhesive, an epoxy resin-based adhesive, a urethane-based adhesive, or the like can be used.
When the waterproof sheet 17 and the heat insulating material 16 are bonded and fixed, the hot melt resin layer and the heat insulating sheet on the presser plate 23A or 23B, which are necessary when performing induction heating, are unnecessary.

上記実施の形態１では長尺ナット２２は、上下に貫通するねじ孔を有しているタイプを示したが、本発明は、少なくとも上部及び下部にねじ孔を有するタイプの長尺ナット、すなわち、上端面及び下端面より所要深さを有するねじ穴が形成されているタイプの長尺ナットを使用する場合も技術的範囲に含む。 In the first embodiment, the long nut 22 has a type having screw holes penetrating vertically, but the present invention is a long nut of a type having screw holes in at least the upper part and the lower part. The case where a long nut of a type in which a screw hole having a required depth is formed from the upper end surface and the lower end surface is also included in the technical scope.

実施の形態１にかかる既存成形屋根の改修工法を説明するための要部断面図である。It is principal part sectional drawing for demonstrating the repair method of the existing shaping | molding roof concerning Embodiment 1. FIG. 実施の形態２にかかる既存成形屋根の改修工法を説明するための要部断面図である。It is principal part sectional drawing for demonstrating the repair method of the existing shaping | molding roof concerning Embodiment 2. FIG. 従来の既存成形屋根の改修工法を説明するための工程途中の状態を要部断面図である。It is principal part sectional drawing for the state in the middle of the process for demonstrating the repair method of the conventional existing shaping | molding roof. 図３に続く工程を説明するための要部断面図である。FIG. 4 is an essential part cross-sectional view for explaining a process following the process in FIG. 3.

符号の説明Explanation of symbols

１１フックボルト
１２座金
１３ナット
１４鉄骨下地材
１５既存成形屋根
１６養生板（断熱材）
１７防水シート
２２長尺ナット
２３Ａ押えプレート
２３Ｂ押えプレート
２４ビスねじ
２５貫通孔
２６養生板 11 Hook Bolt 12 Washer 13 Nut 14 Steel Base Material 15 Existing Molded Roof 16 Curing Plate (Insulation Material)
17 Waterproof sheet 22 Long nut 23A Presser plate 23B Presser plate 24 Screw screw 25 Through hole 26 Curing plate

Claims

既存成形屋根をそのまま残し、該既存成形屋根の上に断熱材を敷設し、かつ、該断熱材を前記既存成形屋根の下地材に連結固定し、さらに前記断熱材の上に防水シートを張設し、前記断熱材と前記防水シートとで新しい屋根として改修した既存成形屋根の改修構造であって、
少なくとも上部及び下部にねじ孔を有し、該ねじ孔の下部を前記既存成形屋根より突出した任意のフックボルトの上端部に対して螺合固定され、前記断熱材に開けられた貫通孔に通され、上端が前記断熱材の上面よりも引っ込んでいる長尺ナットと、
ねじ通し孔を有し該ねじ通し孔を前記断熱材の上面に開いた前記貫通孔に合わせて前記断熱材の上面に重ねられた押えプレートと、
上方から前記押えプレートのねじ通し孔に通され前記長尺ナットのねじ孔に螺合し締め付けるビスねじと、
により前記断熱材の前記下地材に対する連結固定が行われ、
前記防水シートが、前記押えプレート及び前記ビスねじを隠して張設され固着された、
ことを特徴とする既存成形屋根の改修構造。 Leave the existing molded roof as it is, lay a heat insulating material on the existing molded roof, and connect and fix the heat insulating material to the base material of the existing molded roof, and further stretch a waterproof sheet on the heat insulating material And the renovation structure of the existing molded roof renovated as a new roof with the heat insulating material and the waterproof sheet,
There are screw holes at least at the upper and lower parts, and the lower part of the screw holes are screwed and fixed to the upper end part of an arbitrary hook bolt protruding from the existing molded roof, and are passed through a through hole opened in the heat insulating material. A long nut whose upper end is recessed from the upper surface of the heat insulating material;
A presser plate which has a screw hole and is overlaid on the upper surface of the heat insulating material in accordance with the through hole opened on the upper surface of the heat insulating material;
A screw screw that is passed through the screw hole of the presser plate from above and screwed into the screw hole of the long nut and tightened;
The connection fixing of the heat insulating material to the base material is performed,
The waterproof sheet is stretched and fixed while concealing the presser plate and the screw screw,
Renovation structure of existing molded roof characterized by that.

前記既存成形屋根と前記断熱材との間に、前記フックボルトを避けて敷設され人が載っても実質的に撓まない養生板を備えた、
ことを特徴とする請求項１に記載の既存成形屋根の改修構造。 Between the existing molded roof and the heat insulating material, provided with a curing plate that is laid avoiding the hook bolt and does not substantially bend even if a person is placed,
The repair structure of the existing molded roof of Claim 1 characterized by the above-mentioned.

前記防水シートの固着は、前記押えプレートが前記防水シートの上から誘導加熱されかつ押圧され、前記押えプレートの上面に塗布されたホットメルト接着剤により前記防水シートと前記押えプレートとが固着された、
ことを特徴とする請求項１又は２に記載の既存成形屋根の改修構造。 The waterproof sheet was fixed by induction heating and pressing the presser plate from above the waterproof sheet, and the waterproof sheet and the presser plate were fixed by a hot melt adhesive applied to the upper surface of the presser plate. ,
The repair structure of the existing shaping | molding roof of Claim 1 or 2 characterized by the above-mentioned.

前記防水シートの固着は、前記防水シートと前記断熱材との密着面に塗布した接着剤により接着された、
ことを特徴とする請求項１又は２に記載の既存成形屋根の改修構造。 The fixing of the waterproof sheet was adhered by an adhesive applied to the adhesion surface of the waterproof sheet and the heat insulating material,
The repair structure of the existing shaping | molding roof of Claim 1 or 2 characterized by the above-mentioned.

既存成形屋根をそのまま残し、該既存成形屋根の上に断熱材を敷設し、該断熱材を前記既存成形屋根の下地材に連結固定し、かつ、前記断熱材の上に防水シートを張設し、前記断熱材と前記防水シートとで新しい屋根として改修する既存成形屋根の改修工法であって、
前記断熱材と前記防水シートとを設ける前に、少なくとも上部及び下部にねじ孔を有する長尺ナットを前記既存成形屋根より突出した任意のフックボルトの上端部に対して螺合し固定し、
次いで、該断熱材を前記既存成形屋根の上に敷設し、かつ、該断熱材に貫通孔を開けて該貫通孔に前記長尺ナットを通し、
次いで、中央にねじ通し孔を有し該ねじ通し孔を前記断熱材の上面に開いた前記貫通孔に合わせて前記断熱材の上面に重ねられかつ少なくとも上面にホットメルト樹脂が塗布された押えプレートを前記貫通孔に同心させて該断熱材の上に重ね、ビスねじを押えプレートのねじ通し孔に通して前記長尺ナットに螺合し締め付け、
次いで、前記断熱材の上に前記防水シートを張設し、該防水シートの上から前記押えプレートを誘導加熱して該押えプレートの上面に形成されたホットメルト樹脂膜を溶融して該押えプレートの上面と該防水シートとを固着する、
ことを特徴とする既存成形屋根の改修工法。 Leave the existing molded roof as it is, lay a heat insulating material on the existing molded roof, connect and fix the heat insulating material to the base material of the existing molded roof, and stretch a waterproof sheet on the heat insulating material The renovation method of the existing molded roof to be refurbished as a new roof with the heat insulating material and the waterproof sheet,
Before providing the heat insulating material and the waterproof sheet, a long nut having screw holes at least at the upper part and the lower part is screwed and fixed to the upper end part of an arbitrary hook bolt protruding from the existing molded roof,
Next, the heat insulating material is laid on the existing molded roof, and a through hole is opened in the heat insulating material, and the long nut is passed through the through hole,
Next, a press plate in which a screw hole is provided in the center, and the screw hole is overlapped with the upper surface of the heat insulating material in accordance with the through hole opened on the upper surface of the heat insulating material, and at least the upper surface is coated with hot melt resin Is concentric with the through hole and overlaid on the heat insulating material, and a screw screw is passed through the screw hole of the presser plate and screwed into the long nut and tightened,
Next, the waterproof sheet is stretched on the heat insulating material, the presser plate is induction-heated from the waterproof sheet to melt the hot melt resin film formed on the upper surface of the presser plate, and the presser plate Fixing the top surface of the waterproof sheet and the waterproof sheet,
A renovation method for existing molded roofs.

前記既存成形屋根の上に、人が載っても実質的に撓まない養生板を前記フックボルトを避けて敷設し、次いで、前記断熱材の敷設を行う、
ことを特徴とする請求項５に記載の既存成形屋根の改修工法。 On the existing molded roof, a curing plate that does not substantially bend even if a person is placed is laid around the hook bolt, and then the insulation is laid.
The repair method of the existing molded roof of Claim 5 characterized by the above-mentioned.

前記防水シートの固着は、前記防水シートの上から誘導加熱手段により前記押えプレートを押圧して誘導加熱し、前記押えプレートの上面に塗布した前記ホットメルト接着剤を溶融してから押圧を確保して誘導加熱を停止し冷却することにより前記防水シートと前記押えプレートとを固着する、
ことを特徴とする請求項５叉は６に記載の既存成形屋根の改修工法。 The waterproof sheet is secured by inducing and heating the presser plate from above the waterproof sheet by induction heating means, and ensuring the press after melting the hot melt adhesive applied to the upper surface of the presser plate. Fixing the waterproof sheet and the presser plate by stopping and cooling the induction heating,
The method for refurbishing an existing molded roof according to claim 5 or 6, characterized in that:

前記防水シートの固着は、前記防水シートの敷設に際して、前記防水シートと前記断熱材との密着面に接着剤を塗布することにより接着する、
ことを特徴とする請求項５叉は６に記載の既存成形屋根の改修工法。 The fixing of the waterproof sheet is performed by applying an adhesive to the adhesion surface of the waterproof sheet and the heat insulating material when laying the waterproof sheet.
The method for refurbishing an existing molded roof according to claim 5 or 6, characterized in that: