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JP4642624B2 - Ceiling repair method using membrane ceiling sheet and membrane ceiling structure - Google Patents
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JP4642624B2 - Ceiling repair method using membrane ceiling sheet and membrane ceiling structure - Google Patents

Ceiling repair method using membrane ceiling sheet and membrane ceiling structure Download PDF

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JP4642624B2
JP4642624B2 JP2005288335A JP2005288335A JP4642624B2 JP 4642624 B2 JP4642624 B2 JP 4642624B2 JP 2005288335 A JP2005288335 A JP 2005288335A JP 2005288335 A JP2005288335 A JP 2005288335A JP 4642624 B2 JP4642624 B2 JP 4642624B2
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ceiling
membrane
sheet
membrane ceiling
edge
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JP2007100320A (en
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英明 村上
和弘 石川
和彦 木瀬
守久 大塚
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Fukuvi Chemical Industry Co Ltd
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Description

本発明は、建築物における膜天井シートを用いた天井改修方法および膜天井構造に関する。   The present invention relates to a ceiling repair method and a membrane ceiling structure using a membrane ceiling sheet in a building.

従来、住宅などの天井や壁の建築資材には、保温性、耐火性の効果が高いといった理由からアスベスト(石綿)が多く使用されていた。しかしながら、周知のとおり、アスベストは、非常に微細な繊維形状をなしており、とくにアスベストが室内空間に露出している部分が剥がれ落ちると空気中にアスベストが飛散し、それを人が吸引したときに人体に与える影響が大きく社会的問題となっている。このような背景から、近年では、アスベストが使用されている建築物の改装(リフォーム)が行われている。
その改装方法として、アスベスト部分を除去する方法が一般的に多く実施されている。この方法の場合、解体作業が発生するため、住人の引越しが必要になるうえ、解体範囲をフィルム材等で密封状態に取り囲み、さらにその中で解体作業を行う作業員は防塵マスク等を使用した大掛かりな装備が必要であった。
これに対し、アスベストを除去せずに残置した状態で改装する方法として、アスベストを囲い込む方法や封じ込める方法がある(例えば、特許文献1、2参照)。
特許文献1は、吹き付けによってアスベスト層に飛散防止処理剤をコーティング処理し、アスベスト層の所定箇所にボルトを貫通させて基盤に固定させたアスベスト層の封じ込め方法である。
特許文献2は、既存の天井面に沿って新たに膜天井シートを敷設する方法である。膜天井シートは、天井面の周囲に沿って配置されている既設の木廻り縁に垂直材および水平材からなる断面略L字形の膜天井廻り縁をステープルで固定し、膜天井シートの周縁に設けられた断面U字形の係止部材を膜天井廻り縁の水平材の先端に形成された断面鉤形の係止部に引っ掛けることで既存の天井面に沿って敷設される。
特許第2612908号公報 特開2004−197448号公報
Conventionally, asbestos (asbestos) has been frequently used for building materials for ceilings and walls of houses and the like because of its high heat retention and fire resistance effects. However, as is well known, asbestos has a very fine fiber shape, especially when the asbestos is exposed to the indoor space and the asbestos scatters in the air when a person inhales it. The impact on the human body is a big social issue. Against this background, in recent years, renovation of buildings using asbestos has been carried out.
As a remodeling method, many methods for removing the asbestos portion are generally performed. In this method, since dismantling work occurs, it is necessary for residents to move, and the dismantling area is enclosed in a sealed state with film material, etc., and the workers who perform dismantling work in that use a dust mask etc. Large-scale equipment was necessary.
On the other hand, as a method of refurbishing in a state where the asbestos is left without being removed, there are a method of enclosing asbestos and a method of enclosing it (for example, see Patent Documents 1 and 2).
Patent Document 1 is a method for enclosing an asbestos layer in which an anti-scattering treatment agent is coated on the asbestos layer by spraying, and a bolt is passed through a predetermined portion of the asbestos layer and fixed to a base.
Patent Document 2 is a method of newly laying a membrane ceiling sheet along an existing ceiling surface. The membrane ceiling sheet is fixed to the peripheral edge of the membrane ceiling sheet by fixing the peripheral edge of the membrane ceiling having a substantially L-shaped cross section made of a vertical material and a horizontal material to the existing tree circumference edge arranged along the periphery of the ceiling surface with staples. The provided U-shaped locking member is hooked to the hook-shaped locking portion formed at the tip of the horizontal member around the membrane ceiling, and is laid along the existing ceiling surface.
Japanese Patent No. 2612908 JP 2004-197448 A

しかしながら、特許文献1は、コーティング処理した吹き付け面が室内空間に面しており、この吹き付け面が劣化により亀裂が入ったり剥がれ落ちるなどすると、コーティング処理した裏面のアスベスト層が露出してアスベスト片が室内空間に飛散するという問題があった。
特許文献2は、天井と膜天井シートとの間に例えば10〜20mm程度の空間があるため、天井面が剥がれ落ちてアスベスト片が飛散することになる。そして、このアスベスト片が膜天井廻り縁と木廻り縁との隙間を通過して室内に入り込むといった問題があった。したがって、アスベストの封じ込め(囲い込み)対策としては不十分であり、信頼性という点で改善の余地があった。
However, in Patent Document 1, the sprayed surface that has been coated faces the interior space, and if this sprayed surface is cracked or peeled off due to deterioration, the asbestos layer on the back surface that has been coated is exposed, and the asbestos pieces are exposed. There was a problem of scattering in the indoor space.
In Patent Document 2, since there is a space of, for example, about 10 to 20 mm between the ceiling and the membrane ceiling sheet, the ceiling surface is peeled off and asbestos pieces are scattered. And there was a problem that this asbestos piece entered the room through the gap between the membrane ceiling edge and the tree edge. Therefore, asbestos containment (enclosure) measures are insufficient, and there is room for improvement in terms of reliability.

本発明は、上述する問題点に鑑みてなされたもので、天井に膜天井シートを密着させることで、例えばアスベストを使用した天井の場合にアスベストの飛散を防ぐことができ、天井の封じ込めとしての信頼性を向上させた膜天井シートを用いた天井改修方法および膜天井構造を提供することを目的とする。   The present invention has been made in view of the above-described problems, and by sticking the membrane ceiling sheet to the ceiling, for example, in the case of a ceiling using asbestos, asbestos can be prevented from scattering, and as a ceiling containment It is an object of the present invention to provide a ceiling repair method and a membrane ceiling structure using a membrane ceiling sheet with improved reliability.

上記目的を達成するため、本発明に係る膜天井シートを用いた天井改修方法は、第一膜天井シートを天井に沿って敷設する膜天井シートを用いた天井改修方法であって、接着材を介して第一膜天井シートと天井とを密着させるようにしたことを特徴としている。
本発明では、天井の大部分の範囲に第一膜天井シートが密着していることから、例えばアスベストが使用されている天井が剥がれ落ちる場合において、アスベスト片の飛散を防止することができる。このため、アスベスト封じ込めにおける信頼性を向上させることができる。
In order to achieve the above object, a ceiling repair method using a membrane ceiling sheet according to the present invention is a ceiling repair method using a membrane ceiling sheet in which a first membrane ceiling sheet is laid along the ceiling, and an adhesive is used. The first membrane ceiling sheet and the ceiling are in close contact with each other.
In the present invention, since the first membrane ceiling sheet is in close contact with most of the ceiling, for example, when the ceiling where asbestos is used peels off, it is possible to prevent the asbestos pieces from scattering. For this reason, the reliability in asbestos containment can be improved.

また、本発明に係る膜天井シートを用いた天井改修方法では、第一膜天井シートを天井に密着させる前に、第一膜天井シートを水平に敷設して第一膜天井シート及び天井の間に形成される密封空間と、室内空間とを連通する吸込み開口を所定箇所に設け、吸込み開口から吸気して第一膜天井シートを、予め天井または第一膜天井シートに付着させた接着材を介して天井に密着させるようにすることが好ましい。
本発明では、吸込み開口から室内空間側に吸気させると、空間が真空状態となり水平に敷設されていた第一膜天井シートが天井側に吸い寄せられて密着する。天井と第一膜天井シートとの間には接着材が設けられているため、第一膜天井シートは天井に固着した状態を保持することができる。
Further, in the ceiling repair method using the membrane ceiling sheet according to the present invention, the first membrane ceiling sheet is horizontally laid between the first membrane ceiling sheet and the ceiling before the first membrane ceiling sheet is closely attached to the ceiling. A suction opening that communicates between the sealed space formed in the interior space and the indoor space is provided at a predetermined location, and the first membrane ceiling sheet is sucked from the suction opening and the adhesive previously adhered to the ceiling or the first membrane ceiling sheet It is preferable to be in close contact with the ceiling.
In the present invention, when the air is sucked from the suction opening to the indoor space side, the first membrane ceiling sheet that has been laid horizontally is sucked to the ceiling side and is in close contact with the space. Since an adhesive is provided between the ceiling and the first membrane ceiling sheet, the first membrane ceiling sheet can maintain a state of being fixed to the ceiling.

また、本発明に係る膜天井構造では、第一膜天井シートを天井に沿って敷設させた膜天井構造であって、第一膜天井シートと天井とを密着させる接着材が設けられていることを特徴としている。
本発明では、天井の大部分の範囲に第一膜天井シートが密着しているため、例えばアスベストが天井に使用された天井が剥がれ落ちるなどの場合において、アスベスト片の飛散を防止できる。
The membrane ceiling structure according to the present invention is a membrane ceiling structure in which the first membrane ceiling sheet is laid along the ceiling, and is provided with an adhesive that closely contacts the first membrane ceiling sheet and the ceiling. It is characterized by.
In the present invention, since the first membrane ceiling sheet is in close contact with most of the ceiling, for example, when the asbestos is used for the ceiling, the asbestos pieces can be prevented from scattering.

また、本発明に係る膜天井構造では、室内壁面または既設の廻り縁に、第一膜天井シートの周縁を係止させる膜天井廻り縁が固定され、膜天井廻り縁の被固定面と膜天井廻り縁との間にシーリング材が設けられていることが好ましい。
本発明では、膜天井廻り縁とその被固定面との間が隙間無く密着していることで、気密性、接着性が向上されるため、天井と第一膜天井シートとの間の空間が密封されて天井が囲い込まれた状態とすることができる。
Further, in the membrane ceiling structure according to the present invention, the membrane ceiling peripheral edge for locking the periphery of the first membrane ceiling sheet is fixed to the indoor wall surface or the existing peripheral edge, and the fixed surface of the membrane ceiling peripheral edge and the membrane ceiling are fixed. It is preferable that a sealing material is provided between the surrounding edges.
In the present invention, the space between the ceiling and the first membrane ceiling sheet is improved because the tightness between the edge of the membrane ceiling and the surface to be fixed is closely adhered, thereby improving airtightness and adhesiveness. It can be sealed and the ceiling can be enclosed.

また、本発明に係る膜天井構造では、第一膜天井シートの下方に1または複数の第二膜天井シートを設けていることが好ましい。
本発明では、第二膜天井シートが室内空間側に敷設されるため、天井に接着した見栄えの悪い第一膜天井シートが第二膜天井シートの裏面に隠れて見えなくなり、室内天井の仕上げ効果を奏し、外観上の問題もなくなる。
In the membrane ceiling structure according to the present invention, it is preferable that one or more second membrane ceiling sheets are provided below the first membrane ceiling sheet.
In the present invention, since the second membrane ceiling sheet is laid on the indoor space side, the unsightly first membrane ceiling sheet adhered to the ceiling is hidden behind the second membrane ceiling sheet and cannot be seen. This eliminates the problem of appearance.

また、本発明に係る膜天井構造では、第一膜天井シートは透明性を有していることが好ましい。
本発明では、第一膜天井シートを天井に沿って敷設した後でも、第一膜天井シートが透明であることから、敷設した第一膜天井シートを取り外すことなく天井の状態を目視点検することができる。
In the membrane ceiling structure according to the present invention, it is preferable that the first membrane ceiling sheet has transparency.
In the present invention, since the first membrane ceiling sheet is transparent even after the first membrane ceiling sheet is laid along the ceiling, the state of the ceiling is visually inspected without removing the laid first membrane ceiling sheet. Can do.

本発明の膜天井シートを用いた天井改修方法および膜天井構造によれば、天井の大部分の範囲に第一膜天井シートが密着しているため、例えばアスベストが天井に使用される場合において天井面が剥がれ落ちる際にアスベスト片が飛散することを防止できる。このため、アスベストの封じ込め(囲い込み)における信頼性を向上させることができる。
また、接着材を例えば吹き付け手段によって吹き付けることができ、施工中にアスベストを含んだ天井に触れることなく施工できることから、安全性を向上させることができる。このため、施工中における住人の引越しも不要となる。
According to the ceiling repair method and the membrane ceiling structure using the membrane ceiling sheet of the present invention, since the first membrane ceiling sheet is in close contact with the majority of the ceiling, for example, when asbestos is used for the ceiling, the ceiling Asbestos pieces can be prevented from scattering when the surface peels off. For this reason, the reliability in containment (enclosure) of asbestos can be improved.
Moreover, since an adhesive can be sprayed by a spraying means, for example, it can construct without touching the ceiling containing asbestos during construction, safety can be improved. For this reason, the resident's moving during construction becomes unnecessary.

以下、本発明の膜天井シートを用いた天井改修方法および膜天井構造の実施の形態について、図1乃至図5に基づいて説明する。
図1は本発明の実施の形態による膜天井の設置状態を示す図、図2は膜天井シートの取付け状況を示す拡大図、図3は第一膜天井シートと天井との接着施工工程を示す図、図4は膜天井シートにおける気密試験装置を示す説明図、図5は気密試験結果を示すグラフである。
Hereinafter, embodiments of a ceiling repair method and a membrane ceiling structure using the membrane ceiling sheet of the present invention will be described with reference to FIGS. 1 to 5.
FIG. 1 is a diagram showing an installation state of a membrane ceiling according to an embodiment of the present invention, FIG. 2 is an enlarged view showing an installation state of the membrane ceiling sheet, and FIG. 3 shows a bonding construction process between the first membrane ceiling sheet and the ceiling. FIG. 4, FIG. 4 is an explanatory view showing an air tightness test apparatus for a membrane ceiling sheet, and FIG. 5 is a graph showing an airtight test result.

図1に示すように、本実施の形態による膜天井1は、住宅などの建築物の室内においてアスベストが使用された天井2を改装(リフォーム)する際に、天井2に沿うようにして第一膜天井シート6を敷設したものである。室内の四方の各壁面3の上端部には、天井2の周縁部全周にわたって既設の木廻り縁4が取り付けられている。
ここで、アスベストが使用された天井2は、例えば従来多く使用されていたアスベストを含んだ天井材料や吹付け材仕上げの材料による天井を対象とする。
As shown in FIG. 1, the membrane ceiling 1 according to the present embodiment is arranged so as to be along the ceiling 2 when the ceiling 2 using asbestos is remodeled (renovated) in a room such as a house. A membrane ceiling sheet 6 is laid. An existing tree-wrapping edge 4 is attached to the upper end of each wall surface 3 on the four sides of the room over the entire periphery of the periphery of the ceiling 2.
Here, the ceiling 2 in which asbestos is used targets, for example, a ceiling made of a ceiling material containing asbestos and a material having a finish of spraying material, which have been conventionally used.

図2に示すように、膜天井1は、垂直材5Aおよび水平材5Bを配してなる断面略L字形をなして木廻り縁4に重なるように固定された膜天井廻り縁5と、天井2に沿って敷設された第一膜天井シート6と、第一膜天井シート6の下方に所定間隔(例えば10mm程度の間隔)をもって敷設された第二膜天井シート7とから概略構成されている。膜天井廻り縁5の垂直材5Aの上端には、断面略鉤形の第一係止部51が形成されている。また、膜天井廻り縁5の水平材5Bの端部には、断面略鉤形の第二係止部52が形成されている。
ここで、膜天井廻り縁5の被固定面は、木廻り縁4である。
As shown in FIG. 2, the membrane ceiling 1 has a membrane ceiling peripheral edge 5 that is fixed so as to overlap the tree periphery edge 4 in a substantially L-shaped cross section formed by arranging a vertical member 5A and a horizontal member 5B. The first membrane ceiling sheet 6 laid along the line 2 and the second membrane ceiling sheet 7 laid below the first membrane ceiling sheet 6 with a predetermined interval (for example, an interval of about 10 mm). . A first locking portion 51 having a substantially bowl-shaped cross section is formed at the upper end of the vertical member 5 </ b> A around the membrane ceiling edge 5. A second locking portion 52 having a substantially bowl-shaped cross section is formed at the end of the horizontal member 5B at the edge 5 of the membrane ceiling.
Here, the fixed surface of the edge 5 around the membrane ceiling is the edge 4 around the tree.

第一膜天井シート6及び第二膜天井シート7は、例えば塩化ビニル樹脂製の材質(例えば、リフォジュールシート(登録商標)、フクビ化学工業社製)で弾力性を有するシートを使用する。
また、第一膜天井シート6は、透明性を有する材料を使用する。そして、天井2の点検を行うときは、第二膜天井シート7を取り外すことで、第一膜天井シート6を介して天井2の状態を確認することができる。
The first membrane ceiling sheet 6 and the second membrane ceiling sheet 7 are made of, for example, a material made of vinyl chloride resin (for example, Reforjur sheet (registered trademark), manufactured by Fukubi Chemical Industry Co., Ltd.) and having elasticity.
The first membrane ceiling sheet 6 uses a transparent material. When the inspection of the ceiling 2 is performed, the state of the ceiling 2 can be confirmed through the first membrane ceiling sheet 6 by removing the second membrane ceiling sheet 7.

図2に示すように、第一膜天井シート6には、その周縁に断面略U字形の係止部材8が全周に連続して設けられている。そして、係止部材8の溝部8aを第一係止部51に引っ掛けることによって、第一膜天井シート6は天井2に沿って敷設させることができる。
また、第一膜天井シート6と天井2とを密着させる接着材9が設けられている(図1参照)。この接着材9は、例えば第一膜天井シート6を敷設する前に予め天井2の略全面にわたって吹き付け手段などによって吹き付けておく。
As shown in FIG. 2, the first membrane ceiling sheet 6 is provided with a locking member 8 having a substantially U-shaped cross section at the periphery thereof continuously around the entire periphery. The first membrane ceiling sheet 6 can be laid along the ceiling 2 by hooking the groove 8 a of the locking member 8 to the first locking portion 51.
Moreover, the adhesive material 9 which adhere | attaches the 1st film | membrane ceiling sheet | seat 6 and the ceiling 2 is provided (refer FIG. 1). For example, before the first membrane ceiling sheet 6 is laid, the adhesive material 9 is sprayed on a substantially entire surface of the ceiling 2 in advance by a spraying means or the like.

図2に示すように、木廻り縁4と膜天井廻り縁5との間に挟持されるようにしてシーリング材10が設けられている。このシーリング材10として、例えば弾性樹脂(ブチルゴムを含む)の両面に接着剤(粘着剤)を塗付加工してなる両面テープなどを使用することが好ましい。そして、膜天井廻り縁5の垂直材5Aは、シーリング材10を介してビス11によって木廻り縁4を貫通させて壁面3に固定されている。   As shown in FIG. 2, a sealing material 10 is provided so as to be sandwiched between a tree periphery 4 and a membrane ceiling periphery 5. As the sealing material 10, it is preferable to use, for example, a double-sided tape formed by applying an adhesive (adhesive) to both surfaces of an elastic resin (including butyl rubber). The vertical member 5 </ b> A around the membrane ceiling edge 5 is fixed to the wall surface 3 by passing through the tree turning edge 4 with a screw 11 through a sealing material 10.

第二膜天井シート7は、図2に示すように、その周縁に断面略U字形の第二係止部材12が設けられ、第二係止部材12の溝部12aが第二係止部52に引っ掛けられている。
なお、この第二膜天井シート7は、室内天井として好みのデザインのシートを使用することができる。
As shown in FIG. 2, the second membrane ceiling sheet 7 is provided with a second locking member 12 having a substantially U-shaped cross section at the periphery thereof, and the groove portion 12 a of the second locking member 12 is formed in the second locking portion 52. It is caught.
In addition, this 2nd film | membrane ceiling sheet | seat 7 can use the sheet | seat of a favorite design as an indoor ceiling.

次に、このような構成をなす膜天井1の施工方法について図面に基づいて説明する。
先ず、図1に示すように、天井2の略全面にスプレーガンなどの吹き付け手段によって、接着材9を吹き付けておく。
そして、木廻り縁4にシーリング材10を介して膜天井廻り縁5を重ね合わせ、水平方向に所定間隔(例えば120mmピッチ)ごとにビス11を膜天井廻り縁5の上から打ち込ませて木廻り縁4に膜天井廻り縁5を固定する。
Next, a construction method of the membrane ceiling 1 having such a configuration will be described based on the drawings.
First, as shown in FIG. 1, the adhesive 9 is sprayed on the substantially entire surface of the ceiling 2 by spraying means such as a spray gun.
Then, the membrane ceiling edge 5 is superposed on the tree circumference edge 4 via the sealing material 10, and screws 11 are driven from above the membrane ceiling edge 5 at predetermined intervals (for example, 120 mm pitch) in the horizontal direction. The edge 5 around the membrane ceiling is fixed to the edge 4.

次いで、図2に示すように、第一膜天井シート6の周縁に設けた係止部材8を、例えばコテ状の治具(図示省略)を使用して係止部材8の溝部8aに挟み込みながら膜天井廻り縁5の第一係止部51にはめ込んで係止させる。これにより、膜天井廻り縁5の内側に第一膜天井シート6が敷設(図中二点鎖線Sの位置)される。このとき、第一膜天井シート6と天井2との間には、室内空間Rと遮断された密封空間Tが形成されて天井2が囲い込まれた状態となる。
なお、先行して膜天井廻り縁5を取り付け、その後で天井2に接着材9を吹き付けるようにしてもかまわない。
Next, as shown in FIG. 2, the locking member 8 provided on the periphery of the first membrane ceiling sheet 6 is sandwiched in the groove 8a of the locking member 8 using, for example, a trowel-shaped jig (not shown). The film is fitted and locked to the first locking part 51 of the edge 5 around the membrane ceiling. As a result, the first membrane ceiling sheet 6 is laid inside the edge 5 around the membrane ceiling (position of the two-dot chain line S in the figure). At this time, between the first membrane ceiling sheet 6 and the ceiling 2, a sealed space T that is blocked from the indoor space R is formed so that the ceiling 2 is enclosed.
Note that the membrane ceiling edge 5 may be attached in advance, and then the adhesive 9 may be sprayed onto the ceiling 2.

続いて、図3に示すように、係止部材8と第一係止部51とが係止されている任意の位置で、第一係止部51に引っ掛けた係止部材8を部分的に取り外して室内空間Rと密封空間Tと連通する吸込み開口13を形成させ、この吸込み開口13に例えば管(図示省略)を取り付けて真空ポンプなどを使用して吸気する。そうすると、第一膜天井シート6は、密封空間T内の空気が吸い込まれて真空状態となり、張っていた第一膜天井シート6が天井2側(矢印E方向に)吸い寄せられて図中二点差線Uの位置に示すように接着材9に接着する。これにより、第一膜天井シート6は密着した状態で保持されることになる。
なお、吸込み開口13に取り付けた管の周囲には吸気時に空気が抜けないように密閉させておくことが好ましい。さらに、吸込み開口13は、1箇所に限定されず所定箇所に複数箇所に設けてもかまわない。
次いで、吸込み開口13を形成させるために取り外しておいた部分の係止部材8を第一係止部51に係止させて吸込み開口13を塞いでおく。
Subsequently, as shown in FIG. 3, the locking member 8 hooked on the first locking portion 51 is partially moved at an arbitrary position where the locking member 8 and the first locking portion 51 are locked. The suction opening 13 that is removed and communicates with the indoor space R and the sealed space T is formed, and a pipe (not shown), for example, is attached to the suction opening 13 and sucked using a vacuum pump or the like. Then, the air in the sealed space T is sucked into the first membrane ceiling sheet 6 to be in a vacuum state, and the stretched first membrane ceiling sheet 6 is sucked toward the ceiling 2 side (in the direction of arrow E), and two-point difference in the figure Adhere to the adhesive 9 as indicated by the position of the line U. Thereby, the 1st film | membrane ceiling sheet | seat 6 will be hold | maintained in the closely_contact | adhered state.
In addition, it is preferable to seal the periphery of the pipe attached to the suction opening 13 so that air does not escape during intake. Further, the suction openings 13 are not limited to one place, and may be provided at a plurality of places at predetermined places.
Next, the portion of the locking member 8 that has been removed to form the suction opening 13 is locked to the first locking portion 51 to block the suction opening 13.

なお、通常の膜天井シートは、天井2への敷設面積に対して略8割の面積比率に加工されたものを、設置する際に引き伸ばすようにテンションをかけながら膜天井廻り縁5に固定させている。これに対し、第一膜天井シート6は、同等又は少し大きな(例えば、1割程度)面積比率のものを使用する。つまり、天井2に接着材9を介して接着させる第一膜天井シート6では、テンションを与えた状態で膜天井廻り縁5に固定してしまうと、第一膜天井シート6は吸気により天井2に接着する際、元の固定状態(図2に示す二点鎖線の位置)に戻る作用が働くことになる。したがって、接着材9と第一膜天井シート6とが剥がれ易くなるうえ、接着乾燥するまでのあいだ真空状態としておく必要があり、吸気時間が大きくなるため、上述したようにテンションをかけない寸法にしておくことが好ましい。   In addition, a normal membrane ceiling sheet, which is processed to an area ratio of about 80% with respect to the laying area on the ceiling 2, is fixed to the edge 5 around the membrane ceiling while applying tension to be stretched during installation. ing. On the other hand, the 1st film | membrane ceiling sheet | seat 6 uses the thing of the area ratio which is equivalent or a little big (for example, about 10%). That is, in the first membrane ceiling sheet 6 to be bonded to the ceiling 2 via the adhesive 9, if the first membrane ceiling sheet 6 is fixed to the edge 5 around the membrane ceiling in a tensioned state, the first membrane ceiling sheet 6 is inhaled by suction. When adhering to, the action of returning to the original fixed state (the position of the two-dot chain line shown in FIG. 2) will work. Therefore, the adhesive 9 and the first membrane ceiling sheet 6 are easily peeled off, and it is necessary to keep a vacuum state until the adhesive is dried, and the intake time becomes long. It is preferable to keep it.

その後、第二膜天井シート7の第二係止部材12を第二係止部52に引っ掛けることで、膜天井1の設置が完了となる(図2参照)。
このように膜天井1の仕上げの状態は、第二膜天井シート7が第一膜天井シート6の下方、即ち室内空間R側に敷設されるため、天井2に接着した見栄えの悪い第一膜天井シート6が第二膜天井シート7の裏面に隠れて見えなくなり、室内天井の仕上げ効果を奏し、外観上の問題もなくなる。
Then, the installation of the membrane ceiling 1 is completed by hooking the second locking member 12 of the second membrane ceiling sheet 7 on the second locking portion 52 (see FIG. 2).
Thus, the finish state of the membrane ceiling 1 is such that the second membrane ceiling sheet 7 is laid below the first membrane ceiling sheet 6, that is, on the indoor space R side. The ceiling sheet 6 is hidden behind the second film ceiling sheet 7 so that it cannot be seen, and there is an effect of finishing the indoor ceiling, and there is no problem in appearance.

(試験例)
次に、上述した第一膜天井シート6及び第二膜天井シート7において、設置状態における気密性を確認した気密性試験(以下、試験と呼ぶ)について図4及び図5に基づいて説明する。
本試験では、木廻り縁4と膜天井廻り縁5との間にシーリング材10を設けた実施の形態による試験A(通気孔なしと称する)と、シーリング材10を設けない比較例による試験B(通気孔ありと称する)とを実施した。
図4は、実施の形態による試験Aによって使用する気密試験装置20の概略を示した図である。気密試験装置20は、膜天井シート24が設けられた試験体21と、箱の一面に試験体21を備えて膜天井1が設置される室内に相当させてなる圧力箱体22と、膜天井シート24に対向する圧力箱体22の他面に設けられた送排気孔23とから概略構成されている。
(Test example)
Next, an airtightness test (hereinafter referred to as a test) in which the airtightness in the installed state is confirmed in the first membrane ceiling sheet 6 and the second membrane ceiling sheet 7 described above will be described with reference to FIGS. 4 and 5.
In this test, a test A according to an embodiment in which a sealing material 10 is provided between the tree-wrapping edge 4 and the membrane ceiling-wrapping edge 5 (referred to as no air hole), and a test B according to a comparative example in which the sealing material 10 is not provided. (Referred to as having air holes).
FIG. 4 is a diagram showing an outline of the airtightness test apparatus 20 used in the test A according to the embodiment. The airtight test apparatus 20 includes a test body 21 provided with a membrane ceiling sheet 24, a pressure box body 22 provided on one side of the box with the test body 21 and corresponding to a room in which the membrane ceiling 1 is installed, and a membrane ceiling. It is schematically configured from an air supply / exhaust hole 23 provided on the other surface of the pressure box body 22 facing the sheet 24.

試験体21は、圧力箱体22の一面の外周部に固定された木廻り縁4と、シーリング材10(弾性樹脂製の両面テープ)を介して固定された硬質ポリ塩化ビニル樹脂製の膜天井廻り縁5と、膜天井廻り縁5の内周側に取り付けられた膜天井シート24(塩化ビニル樹脂製、リフォジュールシート(登録商標)、フクビ化学工業社製)とから構成されている。シーリング材10を設けて木廻り縁4と膜天井廻り縁5との間を密着させたことにより、この間に通気孔が形成されない状態とする。
一方、比較例の試験Bを示した図については省略するが、気密試験装置20は、試験体においてシーリング材10が省略されたものであり、木廻り縁4と膜天井廻り縁5との間に通気孔が形成された状態となっている。
このように構成される気密試験装置20は、送排気孔23から図示しない送風機を使用して圧力箱体22の内部を加圧及び減圧させるようにする。
また、気密試験装置20には、圧力箱体22の内圧P1(Pa)を計測する圧力計25と、膜天井シート24の外方側で圧力箱体22から流出した通気量Q(m/時間)を測定するための通気量測定器26とが設けられている。
The test body 21 is a membrane ceiling made of hard polyvinyl chloride resin fixed via a tree-wrapping edge 4 fixed to the outer peripheral portion of one surface of the pressure box body 22 and a sealing material 10 (double-sided tape made of elastic resin). It is comprised from the surrounding edge 5 and the membrane ceiling sheet | seat 24 (made from a vinyl chloride resin, Refjoul sheet (trademark), Fukubi Chemical Industry Co., Ltd. product) attached to the inner peripheral side of the membrane ceiling surrounding edge 5. FIG. By providing the sealing material 10 and bringing the wood edge 4 and the membrane ceiling edge 5 into close contact with each other, no air holes are formed between them.
On the other hand, although the illustration showing the test B of the comparative example is omitted, the airtight test apparatus 20 is the one in which the sealing material 10 is omitted from the test body, and between the tree-wrapping edge 4 and the membrane-ceiling edge 5. Ventilation holes are formed in the.
The airtight test apparatus 20 configured as described above pressurizes and depressurizes the inside of the pressure box body 22 using a blower (not shown) from the air supply / exhaust hole 23.
Further, the airtight test device 20 includes a pressure gauge 25 for measuring the internal pressure P1 (Pa) of the pressure box 22 and an air flow Q (m 3 / m 3) flowing out from the pressure box 22 on the outer side of the membrane ceiling sheet 24. A ventilation rate measuring device 26 for measuring (time) is provided.

図4に示すように、試験方法としては、送排気孔23から図示しない送風機を使用して圧力箱体22の内部を所定の内圧P1となるように加圧あるいは減圧する。そして、内圧P1と圧力箱体22の外側の外圧P2(Pa)との圧力差ΔP(=P1−P2)を変化値とし、この変化値に応じて試験体21と圧力箱体22との隙間から圧力箱体22外方に漏出する通気量Qを測定する。このような試験方法によって、実施の形態による試験Aと比較例による試験Bにおける夫々の試験体21を使用して試験を行う。   As shown in FIG. 4, as a test method, the inside of the pressure box body 22 is pressurized or depressurized from the air supply / exhaust hole 23 to a predetermined internal pressure P1 using a blower (not shown). Then, a pressure difference ΔP (= P1−P2) between the internal pressure P1 and the external pressure P2 (Pa) outside the pressure box body 22 is set as a change value, and the gap between the test body 21 and the pressure box body 22 according to the change value. The air flow rate Q leaking out of the pressure box body 22 is measured. With such a test method, the test is performed using the respective test bodies 21 in the test A according to the embodiment and the test B according to the comparative example.

次に、上述した気密試験装置20によって試験を実施した試験結果について説明する。
図5に示す試験結果は、試験Aと試験Bにおける、圧力差ΔP値(横軸)に対する通気量Q(縦軸)の変化を示したグラフである。図5のグラフAが試験A、グラフBが試験Bを示している。
これによると、グラフBに示す通気孔ありの試験Bは、圧力差ΔPが増加するにしたがって通気量Qも増加する傾向になっている。一方、グラフAに示す通気孔なしの試験Aは、圧力差ΔPの増加にかかわらず通気量Qはゼロに近い値となっていることが分かる。
このようなことから、木廻り縁4と膜天井廻り縁5との間にシーリング材10を設けることで、圧力箱体22の内部を略密封状態にできることが確認された。
Next, test results obtained by performing the test using the above-described airtightness test apparatus 20 will be described.
The test results shown in FIG. 5 are graphs showing changes in the air flow rate Q (vertical axis) with respect to the pressure difference ΔP value (horizontal axis) in Test A and Test B. The graph A in FIG. 5 shows the test A, and the graph B shows the test B.
According to this, in the test B with vent holes shown in the graph B, the ventilation amount Q tends to increase as the pressure difference ΔP increases. On the other hand, in the test A without vents shown in the graph A, it can be seen that the air flow rate Q is close to zero regardless of the increase in the pressure difference ΔP.
For this reason, it was confirmed that the inside of the pressure box body 22 can be substantially sealed by providing the sealing material 10 between the tree surrounding edge 4 and the membrane ceiling surrounding edge 5.

上述した本実施の形態による膜天井シートを用いた天井改修方法および膜天井構造は、第一膜天井シート6を天井2に(隙間無く)密着させることで、天井2の大部分の範囲を封じ込めることができる。このため、アスベストが剥がれ落ちて室内空間Rにアスベスト片が飛散することを防止できる。また、施工中に天井2に触れることなく施工できることから、安全性を向上させることができ、アスベストの封じ込め(囲い込み)における信頼性を向上させることができる。
また、施工中に天井2に触れることなく施工できることから、安全性を向上させることができる。
In the ceiling repair method and the membrane ceiling structure using the membrane ceiling sheet according to the present embodiment described above, the first membrane ceiling sheet 6 is brought into close contact with the ceiling 2 (with no gap), thereby enclosing a large range of the ceiling 2. be able to. For this reason, it is possible to prevent the asbestos pieces from peeling off and scattering the asbestos pieces into the indoor space R. Moreover, since it can construct without touching the ceiling 2 during construction, safety can be improved and reliability in containment (enclosure) of asbestos can be improved.
Moreover, since it can construct without touching the ceiling 2 during construction, safety can be improved.

次に、本実施の形態の第一〜第三変形例について、図6及び図7に基づいて説明するが、上述の実施の形態と同一又は同様な部材、部分には同一の符号を用いて説明を省略し、実施の形態と異なる構成について説明する。
図6は本発明の実施の形態の第一変形例による膜天井の設置状態を示す図であって、図2に対応する図であって、図2に対応する図、図7(a)、(b)は本発明の実施の形態の第二変形例及び第三変形例による膜天井の設置状態を示す図であって、図2に対応する図である。
図6に示すように、本第一変形例は、実施の形態における膜天井廻り縁5の第一係止部51(図2参照)に代えて、垂直材5Aの上端に第二水平材5Cが設けられ、この第二水平材5Cの端部に断面略凹形の第三係止部53が形成されている。第三係止部53には、第二水平材5Cより下方斜め方向に突出した凹部一端をなす突出部53aと、突出部53aに対向した位置に受け部53bとが形成されている。
第一変形例では、上述したコテ状の冶具を使用することなく、第一膜天井シート6を膜天井廻り縁5取り付けることができる。なお、本第一変形例では、室内空間R側から係止部材8が見えてしまうが、第二膜天井シート7を敷設することにより隠れるためとくに問題はない。
本第一変形例では、第一膜天井シート6が天井2に密着される前工程において、第三係止部53の突出部53aに係止部材8の一端8bを係止させ、第一膜天井シート6の引張力によって係止部材8の他端8cが受け部53bに当接することで、係止部材8が第三係止部53に係止される。
Next, first to third modifications of the present embodiment will be described with reference to FIG. 6 and FIG. 7, and the same reference numerals are used for members or portions that are the same as or similar to those of the above-described embodiment. Description is omitted, and a configuration different from the embodiment will be described.
FIG. 6 is a diagram showing the installation state of the membrane ceiling according to the first modification of the embodiment of the present invention, which is a diagram corresponding to FIG. 2 and corresponding to FIG. 2, FIG. (B) is a figure which shows the installation state of the membrane ceiling by the 2nd modification of an embodiment of this invention, and a 3rd modification, Comprising: It is a figure corresponding to FIG.
As shown in FIG. 6, in the first modification, instead of the first locking portion 51 (see FIG. 2) of the membrane ceiling edge 5 in the embodiment, the second horizontal member 5 </ b> C is formed at the upper end of the vertical member 5 </ b> A. And a third locking portion 53 having a substantially concave cross section is formed at the end of the second horizontal member 5C. The third locking portion 53 is formed with a protruding portion 53a that forms one end of a recessed portion protruding obliquely downward from the second horizontal member 5C, and a receiving portion 53b at a position facing the protruding portion 53a.
In the first modification, the first membrane ceiling sheet 6 can be attached to the edge 5 around the membrane ceiling without using the iron-like jig described above. In addition, in this 1st modification, although the locking member 8 will be visible from the indoor space R side, since it hides by laying the 2nd film | membrane ceiling sheet | seat 7, there is no problem in particular.
In the first modification, in the previous step in which the first membrane ceiling sheet 6 is in close contact with the ceiling 2, one end 8b of the locking member 8 is locked to the protruding portion 53a of the third locking portion 53, and the first membrane The other end 8 c of the locking member 8 is brought into contact with the receiving portion 53 b by the tensile force of the ceiling sheet 6, so that the locking member 8 is locked to the third locking portion 53.

また、第二変形例及び第三変形例では、図7(a)及び(b)に示すように、膜天井廻り縁5の第一係止部51の上方を覆うようにして垂直材5Aの上端に第二水平材5Cが設けられていて、膜天井廻り縁5の第二水平部材5Cは接着材9を介して天井2に取り付けることができる構造である。
これら第一〜第三変形例では、膜天井1は、膜天井廻り縁5の上面が天井2に接して配置できるため、実施の形態と比較して第一膜天井シート6と天井2とが密着しない範囲を少なくすることができる。
Further, in the second and third modified examples, as shown in FIGS. 7A and 7B, the vertical member 5A is covered so as to cover the upper side of the first locking portion 51 of the membrane ceiling edge 5. A second horizontal member 5 </ b> C is provided at the upper end, and the second horizontal member 5 </ b> C of the membrane ceiling edge 5 can be attached to the ceiling 2 via an adhesive 9.
In these first to third modified examples, the membrane ceiling 1 can be arranged so that the upper surface of the membrane ceiling edge 5 is in contact with the ceiling 2, so that the first membrane ceiling sheet 6 and the ceiling 2 are compared with the embodiment. The range where it does not adhere can be reduced.

以上、本発明による膜天井シートを用いた天井改修方法および膜天井構造の実施の形態について説明したが、本発明は上記の実施の形態に限定されるものではなく、その趣旨を逸脱しない範囲で適宜変更可能である。
例えば、本実施の形態では係止部材8の一部分を第一係止部51から取り外して吸込み開口13を形成させているが、これに限定されることはなく、例えば予め第一膜天井シート6に開閉可能な部材を取り付けておくようにしてもよい。
また、本実施の形態ではアスベストが使用された天井2を対象としているが、アスベストを含まない吹き付け天井やコンクリートが露出した天井などで剥がれ落ちを防止するための改装に適用してもかまわない。
また、本実施の形態では接着材9を吹き付け手段によって天井2に吹き付けているが、例えば第一膜天井シート6の上面(天井側)に接着材9を塗布しておくようにしてもかまわない。そして、吹き付け手段に限定されることはなく、塗布する手段であってもよい。
また、本実施の形態では第二膜天井シート7を一段としているが、例えば外観を重要視しない用途(倉庫など)の場合には第二膜天井シート7を設けなくてもよく、また二段以上として複数を設けてもよい。
また、第一膜天井シート6は透明なもので目視点検を可能としたものであるが、とくに点検などの必要がない場合などでは透明性を有するシートであることに限定はされない。
さらに、本実施の形態では膜天井廻り縁5をビス11によって木廻り縁4に取り付けたものであるが、膜天井廻り縁5の固定方法はこれに限定されることはない。要は、テンションをかけて敷設した膜天井シートの引張力によって木廻り縁4や膜天井廻り縁5が外れないようにしておけばよいのであって、例えば各壁面3同士の膜天井廻り縁5に突っ張り用の補強材を設けておくようにしてもよい。
さらに、木廻り縁4が設けられていない場合に適用することもでき、その場合は膜天井廻り縁5を壁面3に直接固定すればよい。
さらにまた、本実施の形態および変形例では膜天井廻り縁5と係止部材8との係止方法が異なっているが、係止方法について限定されるものではない。
As mentioned above, although the ceiling repair method using the membrane ceiling sheet | seat by this invention and embodiment of a membrane ceiling structure were demonstrated, this invention is not limited to said embodiment, In the range which does not deviate from the meaning It can be changed as appropriate.
For example, in the present embodiment, a part of the locking member 8 is removed from the first locking portion 51 to form the suction opening 13, but the present invention is not limited to this. For example, the first membrane ceiling sheet 6 is previously provided. You may make it attach the member which can be opened and closed to.
In this embodiment, the ceiling 2 in which asbestos is used is targeted. However, the present invention may be applied to refurbishment to prevent peeling off in a blown ceiling not containing asbestos or a ceiling with exposed concrete.
Further, in the present embodiment, the adhesive 9 is sprayed on the ceiling 2 by the spraying means. However, for example, the adhesive 9 may be applied to the upper surface (ceiling side) of the first membrane ceiling sheet 6. . And it is not limited to a spraying means, The means to apply | coat may be sufficient.
Further, in the present embodiment, the second membrane ceiling sheet 7 is provided in a single layer. However, for example, in the case of an application where the appearance is not important (such as a warehouse), the second membrane ceiling sheet 7 may not be provided. A plurality may be provided as described above.
The first membrane ceiling sheet 6 is transparent and can be visually inspected. However, the first film ceiling sheet 6 is not limited to a sheet having transparency particularly when inspection is not necessary.
Furthermore, in this embodiment, the membrane ceiling edge 5 is attached to the tree circumference edge 4 with screws 11, but the method of fixing the membrane ceiling edge 5 is not limited to this. In short, it is only necessary to prevent the peripheral edge 4 and the membrane ceiling edge 5 from being detached by the tensile force of the membrane ceiling sheet laid with tension. You may make it provide the reinforcing material for tension.
Further, the present invention can also be applied to the case where the tree-around edge 4 is not provided. In this case, the membrane ceiling-around edge 5 may be directly fixed to the wall surface 3.
Furthermore, although the locking method between the membrane ceiling edge 5 and the locking member 8 is different in the present embodiment and the modification, the locking method is not limited.

本発明の実施の形態による膜天井の設置状態を示す図である。It is a figure which shows the installation state of the membrane ceiling by embodiment of this invention. 膜天井シートの取付け状況を示す拡大図である。It is an enlarged view which shows the attachment condition of a membrane ceiling sheet | seat. 膜天井シートと天井との接着施工工程を示す図である。It is a figure which shows the adhesion construction process of a film | membrane ceiling sheet | seat and a ceiling. 膜天井シートにおける気密試験装置を示す説明図である。It is explanatory drawing which shows the airtight test apparatus in a film | membrane ceiling sheet | seat. 気密試験結果を示すグラフである。It is a graph which shows an airtight test result. 実施の形態の第一変形例による膜天井の設置状態を示す図であって、図2に対応する図である。It is a figure which shows the installation state of the membrane ceiling by the 1st modification of embodiment, Comprising: It is a figure corresponding to FIG. (a)、(b)は実施の形態の第二変形例及び第三変形例による膜天井の設置状態を示す図であって、図2に対応する図である。(A), (b) is a figure which shows the installation state of the membrane ceiling by the 2nd modification of an embodiment, and a 3rd modification, Comprising: It is a figure corresponding to FIG.

符号の説明Explanation of symbols

1 膜天井
2 天井
3 壁面
4 木廻り縁
5 膜天井廻り縁
51 第一係止部
52 第二係止部
53 第三係止部
6 第一膜天井シート
7 第二膜天井シート
8 係止部材
9 接着材
10 シーリング材
12 第二係止部材
13 吸込み開口
R 室内空間
T 密封空間

DESCRIPTION OF SYMBOLS 1 Membrane ceiling 2 Ceiling 3 Wall surface 4 Tree surrounding edge 5 Membrane ceiling surrounding edge 51 1st latching | locking part 52 2nd latching | locking part 53 3rd latching | locking part 6 1st membrane ceiling sheet 7 2nd membrane ceiling sheet 8 Locking member 9 Adhesive material 10 Sealing material 12 Second locking member 13 Suction opening R Indoor space T Sealed space

Claims (4)

透明性を有した第一膜天井シートを天井に沿って敷設する膜天井シートを用いた天井改修方法であって、
接着材を介して前記第一膜天井シートと前記天井とを密着させるようにし、
前記第一膜天井シートの下方に1または複数の第二膜天井シートを取り外し可能に設けることを特徴とする膜天井シートを用いた天井改修方法。
A ceiling repair method using a membrane ceiling sheet for laying a first membrane ceiling sheet having transparency along the ceiling,
The first membrane ceiling sheet and the ceiling are brought into close contact with each other through an adhesive,
A ceiling repair method using a membrane ceiling sheet, wherein one or more second membrane ceiling sheets are detachably provided below the first membrane ceiling sheet.
前記第一膜天井シートを前記天井に密着させる前に、前記第一膜天井シートを水平に敷設して前記第一膜天井シート及び前記天井の間に形成される密封空間と、室内空間とを連通する吸込み開口を所定箇所に設け、
該吸込み開口から吸気して前記第一膜天井シートを、予め前記天井または前記第一膜天井シートに付着させた前記接着材を介して前記天井に密着させるようにしたことを特徴とする請求項1に記載の膜天井シートを用いた天井改修方法。
Before the first membrane ceiling sheet is brought into close contact with the ceiling, the first membrane ceiling sheet is laid horizontally to form a sealed space formed between the first membrane ceiling sheet and the ceiling, and an indoor space. A suction opening that communicates is provided at a predetermined location,
The first membrane ceiling sheet is sucked from the suction opening and is brought into close contact with the ceiling via the adhesive previously adhered to the ceiling or the first membrane ceiling sheet. A ceiling repair method using the membrane ceiling sheet according to 1.
透明性を有した第一膜天井シートを天井に沿って敷設させた膜天井構造であって、
前記第一膜天井シートと前記天井とを密着させる接着材が設けられ、
前記第一膜天井シートの下方に1または複数の第二膜天井シートを取り外し可能に設けていることを特徴とする膜天井構造。
A membrane ceiling structure in which a first membrane ceiling sheet having transparency is laid along the ceiling,
An adhesive is provided for bringing the first membrane ceiling sheet into close contact with the ceiling;
A membrane ceiling structure, wherein one or more second membrane ceiling sheets are detachably provided below the first membrane ceiling sheet.
室内壁面または既設の廻り縁に、前記第一膜天井シートの周縁を係止させる膜天井廻り縁が固定され、
前記膜天井廻り縁の被固定面と前記膜天井廻り縁との間にシーリング材が設けられていることを特徴とする請求項3に記載の膜天井構造。
A membrane ceiling periphery that locks the periphery of the first membrane ceiling sheet is fixed to an indoor wall surface or an existing periphery,
The membrane ceiling structure according to claim 3, wherein a sealing material is provided between a fixed surface of the membrane ceiling periphery and the membrane ceiling periphery.
JP2005288335A 2005-09-30 2005-09-30 Ceiling repair method using membrane ceiling sheet and membrane ceiling structure Expired - Lifetime JP4642624B2 (en)

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