JP3834497B2 - Waterproof sheet for roof and waterproof construction method using the same - Google Patents

Waterproof sheet for roof and waterproof construction method using the same Download PDF

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JP3834497B2
JP3834497B2 JP2001302736A JP2001302736A JP3834497B2 JP 3834497 B2 JP3834497 B2 JP 3834497B2 JP 2001302736 A JP2001302736 A JP 2001302736A JP 2001302736 A JP2001302736 A JP 2001302736A JP 3834497 B2 JP3834497 B2 JP 3834497B2
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roof
sheet
waterproof
waterproof sheet
tile
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JP2003105936A (en
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保雄 福地
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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Description

【０００１】
【発明の属する技術分野】
本発明は、防水性に優れ、環境に悪影響を及ぼすことのない屋根用防水シートおよびこれを用いた防水施工方法に関する。
【０００２】
【従来の技術】
図５は、従来の天窓の屋根開口部品を示す斜視図である。
この天窓の屋根開口部品は、これを構成する天窓水切板１が、住宅などの屋根に開けられた天窓用の穴の外周に当接するように設けられている。通常、住宅の屋根は、和瓦や洋瓦で覆われている。したがって、天窓水切板１と和瓦や洋瓦などとを接合するには、天窓水切板１の接合部を和瓦や洋瓦などの形状に追従させて、変形しなければならない。そこで、天窓水切板１と和瓦や洋瓦との接合部において、特に、屋根の下側方向となる部分には下水切りとして波板状の鉛板３が用いられている。鉛板３は、和瓦や洋瓦などの形状に追従して容易に変形し、元の形状に復元しないので、天窓水切板１を設置する際に適した屋根用防水材である。
【０００３】
鉛板３の施工方法を以下に示す。
まず、鉛板３において、天窓水切板１を構成する下水切り板２の接合部２ａと接合する部分を、木づちなどで数回叩いて、波形の山を潰す。次いで、この鉛板３の接合部３ａを折り返して、鉤状とする。次いで、あらかじめ鉤状に形成されている下水切り板２の接合部２ａを、鉛板３の接合部３ａに嵌め込む。次いで、これら両者の接合部を、下地の木さん（図示略）に、ビスなどの固定金具４で固定する。次いで、固定金具４の接合穴（図示略）および水切り板２と鉛板３との接合部を、コーキング５により止水する。
次に、鉛板３を屋根瓦７と接合する。まず、鉛板３の長手方向両端部を、屋根瓦７の長手方向に対して垂直になるように位置決めする。次いで、この両端部を木づちなどで叩いて、屋根瓦７の形状に沿わせた後、鉛板３の全体を叩いて平坦にする。次いで、鉛板３と屋根瓦７との接合部を、コーキング５などにより止水する。
【０００４】
【発明が解決しようとする課題】
ところが、上記のように鉛板３を用いた場合、固定金具４の接合穴、水切り板２と鉛板３との接合部、鉛板３と屋根瓦７との接合部を、コーキングなどにより止水しなければならず、施工時の工程が多い上に、防水性が十分でないという問題があった。
また、鉛は長期間、風雨に曝されると、雨水に溶け出し環境に悪影響を与えるという問題があった。
【０００５】
本発明は、前記事情に鑑みてなされたもので、施工が容易で、防水性に優れ、環境に悪影響を及ぼすことのない屋根用防水シートおよびこれを用いた防水施工方法を提供することを課題とする。
【０００６】
【課題を解決するための手段】
［１］ 屋根部材に接合される屋根用防水シートであって、
表面材である加硫ゴムシートの一方の面に、接着剤層を介して、屋根部材側に配置される金属シートが貼り合わされた積層シートからなり、該積層シートに波付け加工が施されて波板状とされたことを特徴とする屋根用防水シート。
［２］ 前記金属シートの全面もしくは一部の面に粘着シートが貼り合わされた［１］に記載の屋根用防水シート。
［３］ 前記粘着シート上に剥離紙が貼り合わされている［２］に記載の屋根用防水シート。
［４］ ［２］または［３］に記載の屋根用防水シートを用いて、屋根部材の凹凸面に、粘着シートを当接し、この凹凸面に屋根用防水シートを変形させて添わせ、屋根用防水シートを屋根部材に接合することを特徴とする防水施工方法。
【０００７】
【発明の実施の形態】
以下、本発明を詳しく説明する。
図１は、本発明の屋根用防水シートの一例を示す概略斜視図である。図２は屋根用防水シートの端部の一部を拡大した正面図である。
本発明の屋根用防水シートは、図５に示した鉛板３を代替するものである。
この例の屋根用防水シート１０は、屋根部材に接合されるものであって、表面材である加硫ゴムシート１１の一方の面に、接着剤としてブチルゴムシート１２を介して、屋根部材側に配置されるアルミニウムシート１３が貼り合わされた積層シートからなり、波付け加工が施されて波板状とされたものである。また、屋根用防水シート１０は、長期耐久性、防水性、形状保持性、耐風性などに優れたものである。
【０００８】
また、屋根用防水シート１０は、加硫ゴムシート１１、ブチルゴムシート１２およびアルミニウムシート１３が貼り合わされた平な積層シートに波付け加工を施して、一方の端部１０ａから他方の端部１０ｂにわたって均一な波形を有する波板状に形成されたものである。このように波付け加工を施したことにより、屋根用防水シート１０の長手方向の長さは縮んで、平な積層シートの長手方向の長さよりも１５〜３０％短くなる。屋根用防水シート１０が長手方向に縮んだ長さが１５％未満では、屋根用防水シート１０が屋根瓦の凹凸に追従し難い。一方、屋根用防水シート１０が長手方向に縮んだ長さが３０％を超えると、施工時に、屋根用防水シート１０の表面に皺が生じる。
また、屋根用防水シート１０に施された波付け加工による波形は、図２に示すように、凹部１０ｃの深さｔが３〜８ｍｍ程度となっている。凹部１０ｃの深さｔが３ｍｍ未満では、屋根瓦の凹凸に追従するために長さが不十分であり、凹部１０ｃの深さｔが８ｍｍを超えると、施工時に、屋根用防水シート１０の表面に皺が生じる。
【０００９】
加硫ゴムシート１１は、屋根用防水シート１０の表面材をなし、エチレン−プロピレン−ジエン三元共重合体（ＥＰＤＭ）をベースとしたブチルゴムを加硫して、シート状に成形された黒色ゴムシートである。また、加硫ゴムシート１１の厚さは、０．５〜１．０ｍｍ程度となっている。この加硫ゴムシート１１の存在により、屋根用防水シート１０は、屋根瓦などとの接合安定性、防水性に優れたものとなる。
ブチルゴムシート１２は、ブチルゴムをシート状に成形したもので、加硫ゴムシート１１とアルミニウムシート１３を貼り合わせるためのものである。また、ブチルゴムシート１２の厚さは、０．６〜１．０ｍｍ程度となっている。
アルミニウムシート１３は、厚さ０．０８〜０．１２ｍｍ程度のアルミニウムシートからなるものである。アルミニウムシート１３の存在により、屋根用防水シート１０は、形状保持性、防火性能に優れたものとなる。
このように、屋根用防水シート１０は、上記のような材料で構成されているから、屋根瓦などの屋根部材への接合時に、屋根部材の開口部分が隙間無く密閉され、長期間にわたって安定した防水構造が得られる。
【００１０】
天窓などに用いられる屋根開口部品の接合部は平滑な形状をなし、瓦などの屋根部材は凹凸が激しい面となっており、また、瓦などの屋根部材の形状はその種類毎に異なる。屋根用防水シート１０では、屋根開口部品と瓦などの屋根部材を隙間なく接合させるために、その接合部が波板状となっている。また、この屋根用防水シート１０は、その構成材料としてアルミニウムシート１３を用いているから、屋根部材の形状に追従して容易に変形し、元の形状に復元しないから、屋根部材と隙間なく接合するため、防水性が高い。
【００１１】
また、アルミニウムシート１３の全面もしくは一部の面には、ブチルゴムシートなどからなる粘着シート１４が貼り合わされ、住宅の屋根瓦などに容易に貼着可能となっている。また、粘着シート１４により、屋根瓦と屋根用防水シート１０との間に生じる開口部を止水するため、防水性が高い。
また、粘着シート１４の厚さは１．５ｍｍ以上、実用的には２ｍｍ以上となっている。厚さが１．５ｍｍ未満では、屋根用防水シート１０を屋根瓦などに接合する際に木づちなどで叩いて、瓦の形状に沿わせて変形させると、粘着シート１４の緩衝作用が不十分で、アルミニウムシート１３が割れることがある。また、厚さが２ｍｍ以上であれば、屋根瓦上に多少のゴミが存在しても、粘着シート１４によって完全に止水することができる。また、粘着シート１４が、洋瓦などの小さな凹凸に対しても完全に追従し、完全に止水することができる。さらに、粘着シート１４の厚さが２ｍｍ以上であれば、屋根用防水シート１０の凹凸を木づちなどで叩いて平坦にした結果、屋根用防水シート１０が長手方向に伸びても、粘着シート１４も同時に長手方向に伸ばされるので、防水性能が劣化することがない。
そして、屋根用防水シート１０の保管時には、粘着シート１４の貼着面上には、剥離紙が貼り合わされている。これにより、粘着シート１４の貼着面が誤って瓦などの被着物以外のものに貼り付くことがない。また、貼着面が汚れて、瓦などに貼り付ける際に、貼着不良を起こすこともない。
【００１２】
また、アルミニウムシート１３には、屋根瓦などとの接合面となる部分に図示略の穴開け加工が施されていてもよい。穴開け加工を施すことにより、アルミニウムシート１３は、より形状が変形し易くなり、屋根瓦などに隙間無く接合することができる。また、アルミニウムシート１３に形成される穴の大きさは、特に限定されるものではなく、屋根用防水シート１０が接合される屋根瓦などの形状に応じて、適宜設定される。
【００１３】
図３は、本発明の屋根用防水シートを用いた防水施工方法の第１の例を示す概略斜視図である。
まず、屋根用防水シート１０において、下水切り板２の接合部２ａと接合する部分を、木づちなどで数回叩いて、波形の山を潰す。次いで、この屋根用防水シート１０の接合部１０ｄを折り返して、鉤状とする。次いで、接合部１０ｄの下水切り板２の接合部２ａとの接合面に、直径２ｍｍの紐状のブチルゴムシールを並列に連接した連続ブチルテープ（図示略）を貼付する。次いで、あらかじめ鉤状に形成されている下水切り板２の接合部２ａを、屋根用防水シート１０の接合部１０ｄに嵌め込む。次いで、これら両者の接合部を木づちなどで叩く。これにより、接合部の隙間が連続ブチルテープで埋められ、結果的に止水される。したがって、接合部のコーキングによる止水の必要はなくなる。次いで、接合部をビスなどの押え金具１６で固定する。押え金具１６を固定する際に屋根用防水シート１０に形成される貫通穴は、連続ブチルテープおよび屋根用防水シート１０を構成するブチルゴムシート１２によって止水される。したがって、コーキングによる貫通穴の止水の必要がなくなる。
次に、屋根用防水シート１０を屋根瓦７と接合する。まず、屋根用防水シート１０の長手方向両端部を、屋根瓦７の長手方向に対して垂直になるように位置決めする。次いで、この両端部を木づちなどで叩いて、屋根瓦７の形状に沿わせた後、屋根用防水シート１０の全体を叩いて平坦にする。屋根用防水シート１０の表面材の加硫ゴムシート１１は黒色ゴムシートであるから、屋根用防水シート１０を叩いて生じた多数の皺が目立たなくなる。また、屋根用防水シート１０の他方の端部１０ｂは、木づちなどで叩くことにより、屋根瓦７の凹凸形状に追従して変形し、屋根瓦７に密着する。屋根用防水シート１０の他方の端部１０ｂと屋根瓦７との接合部には、粘着シート１４が存在し、両者を隙間無く接合している。したがって、屋根用防水シート１０の他方の端部１０ｂと屋根瓦７との接合部から、屋根用防水シート１０の内部に雨水が浸透することがなく、長期信頼性に優れた防水構造を得ることができる。また、粘着シート１４の存在により、屋根用防水シート１０の他方の端部１０ｂと屋根瓦７との接合部に、コーキングによる止水の必要がない。
なお、本発明の屋根用防水シートを用いた防水施工方法において、屋根用防水シート１０と下水切り板２との接合は、施工現場で行なっても、現場に持ち込む前に、あらかじめ接合しておいてもよい。
【００１４】
図４は、本発明の屋根用防水シートを用いた防水施工方法の第２の例を示す概略斜視図である。
まず、屋根用防水シート１０の一方の端部１０ａの表面上で、下水切り板２の接合部２ａとの接合面となる部分に、直径２ｍｍの紐状のブチルゴムシールを並列に連接した連続ブチルテープ（図示略）を貼付する。次いで、下水切り板２の接合部２ａを、連続ブチルテープ上に貼付し、屋根用防水シート１０の一方の端部１０ａと接合する。次いで、これら両者の接合部を木づちなどで叩く。これにより、接合部の隙間が連続ブチルテープで埋められ、結果的に止水される。したがって、接合部のコーキングによる止水の必要はなくなる。次いで、ビスなどの押え金具１６で固定する。押え金具１６を固定する際に屋根用防水シート１０に形成される貫通穴は、連続ブチルテープおよび屋根用防水シート１０を構成するブチルゴムシート１２によって止水される。したがって、コーキングによる貫通穴の止水の必要がなくなる。
以下、図３に示した本発明の屋根用防水シートを用いた防水施工方法の第１の例と同様にして、屋根瓦７と屋根用防水シート１０を接合する。
【００１５】
以下、図１、図２および図３を用いて具体的な実施例を示して、本発明の効果を明らかにする。
［実施例］
まず、厚さ０．６ｍｍ、長さ１０００ｍｍのＥＰＤＭをベースとした加硫ゴムシート１１の一方の面に、厚さ１ｍｍ、長さ１０００ｍｍの針入度４０〜６０のブチルゴムシート１２を貼付した。次いで、ブチルゴムシート１２に厚さ１００μｍ、長さ１０００ｍｍのアルミニウムシート１３を、両者の接合面に空気が入らないようにして貼付して長さ１０００ｍｍの積層シートを得た。
次いで、凹部１０ｃの深さｔが６ｍｍとなるように、この積層シートに波付け加工を施し、屋根用防水シート１０を得た。
得られた屋根用防水シート１０の長さは８３０ｍｍ程度であった。
次いで、アルミニウムシート１３のブチルゴムシート１２に貼付されていない面に厚さ２ｍｍのブチルゴムシートからなる粘着シート１４を、アルミニウムシート１３の凸部に平らに貼付した。
次いで、屋根用防水シート１０の接合部１０ｄを折り返して鉤状とし、あらかじめ鉤状に形成されている下水切り板２の接合部２ａを、屋根用防水シート１０の接合部１０ｄに嵌め込んだ。この際、接合部１０ｄの接合面に、直径２ｍｍの紐状のブチルゴムシールを並列に連接した連続ブチルテープ（図示略）を、あらかじめ貼付しておいた。次いで、これら両者の接合部を木づちなどで叩いて、接合部の隙間を連続ブチルテープで埋めて、止水した。次いで、接合部をビスなどの押え金具１６で固定で固定した。
次いで、屋根瓦７の凹凸面に、粘着シート１４を当接し、屋根用防水シート１０全体を木づちなどで叩いて変形させ、この凹凸面に添わせ、屋根用防水シート１０を屋根瓦７に隙間無く接合した。屋根用防水シート１０を木づちなどで叩いても、厚さ２ｍｍの粘着シート１４が緩衝材として作用し、アルミニウムシート１３が割れることがなかった。また、屋根用防水シート１０は、屋根瓦７の凹凸形状に追従して変形した形状を保持し、長期間、優れた防水構造を保持することができた。
【００１６】
【発明の効果】
以上説明したように、本発明の屋根用防水シートは、加硫ゴムシートの一方の面に、接着剤層を介して金属シートが貼り合わされた積層シートであって、該積層シートにあらかじめ波付け加工が施されて波板状とされたものであるから、屋根瓦などの屋根部材への接合時に、屋根部材の形状に追従して容易に変形し、元の形状に復元しないから、屋根部材に隙間無く密着し、長期間にわたって安定した防水構造が得られる。また、鉛を使用していないので、環境に悪影響を及ぼすことがない。
前記金属シートの全面もしくは一部の面に粘着シートが貼り合わされたものとすれば、屋根瓦などに容易に貼付可能となり、屋根瓦などに接合する際に、この屋根用防水シートを木づちなどで叩いて、瓦の形状に沿わせて変形させても、粘着シートが緩衝材として作用し、アルミニウムシートが割れることがない。また、コーキングなどを用いることなく、防水構造を得ることができる。
前記粘着シート上に剥離紙が貼り合わされていれば、粘着シートの貼着面が誤って瓦などの屋根部材以外のものに貼り付くことがない。また、貼着面が汚れて、瓦などに貼り付ける際に、貼着不良を起こすこともない。
【００１７】
また、本発明の防水施工方法は、上記屋根用防水シートを用いて、防水下地の凹凸面に、粘着シートを当接し、この凹凸面に屋根用防水シートを変形させて添わせ、屋根用防水シートを防水下地に接合するから、屋根用防水シートの他方の端部と屋根瓦との接合部から、屋根用防水シートの内部に雨水が浸透することがなく、長期信頼性に優れた防水構造を得ることができる。
【図面の簡単な説明】
【図１】 本発明の屋根用防水シートの一例を示す概略斜視図である。
【図２】 本発明の屋根用防水シートの端部の一部を拡大した正面図である。
【図３】 本発明の屋根用防水シートを用いた防水施工方法の第１の例を示す概略斜視図である。
【図４】 本発明の屋根用防水シートを用いた防水施工方法の第２の例を示す概略斜視図である。
【図５】 従来の天窓の屋根開口部品を示す斜視図である。
【符号の説明】
１・・・天窓水切り板、２・・・下水切り板、７・・・屋根瓦、１０・・・屋根用防水シート、１０ａ・・・一方の端部、１０ｂ・・・他方の端部、１０ｃ・・・凹部、１０ｄ・・・接合部、１１・・・加硫ゴムシート、１２・・・ブチルゴムシート、１３・・・アルミニウムシート、１４・・・粘着シート、１６・・・押え金具[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a waterproof sheet for roofs that is excellent in waterproofness and does not adversely affect the environment, and a waterproof construction method using the same.
[0002]
[Prior art]
FIG. 5 is a perspective view showing a roof opening part of a conventional skylight.
The roof opening part of the skylight is provided so that the skylight draining plate 1 constituting the skylight comes into contact with the outer periphery of the skylight hole formed in the roof of a house or the like. Usually, the roof of a house is covered with Japanese tile or Western tile. Therefore, in order to join the skylight draining plate 1 to a Japanese roof tile or a Western roof tile, the joint portion of the skylight draining plate 1 must be deformed by following the shape of the Japanese roof tile or the western roof tile. In view of this, a corrugated lead plate 3 is used as a drain for drainage at the joint between the skylight drain plate 1 and the Japanese tile or the western tile, particularly in the lower direction of the roof. The lead plate 3 is a roof waterproof material suitable for installing the skylight draining plate 1 because it easily deforms following the shape of a Japanese tile or a Western tile and does not restore the original shape.
[0003]
The construction method of the lead plate 3 is shown below.
First, in the lead plate 3, a portion of the sewage draining plate 2 constituting the skylight draining plate 1 that is joined to the joining portion 2a is hit several times with a wooden prick or the like to crush the corrugated mountain. Next, the joint portion 3a of the lead plate 3 is folded back into a bowl shape. Next, the joint 2 a of the sewage draining plate 2 formed in a bowl shape in advance is fitted into the joint 3 a of the lead plate 3. Next, the joint portion between the two is fixed to a base wood (not shown) with a fixing bracket 4 such as a screw. Subsequently, the joint hole (not shown) of the fixture 4 and the joint between the draining plate 2 and the lead plate 3 are stopped by the caulking 5.
Next, the lead plate 3 is joined to the roof tile 7. First, the longitudinal ends of the lead plate 3 are positioned so as to be perpendicular to the longitudinal direction of the roof tile 7. Next, the both ends are beaten with a woodwork or the like to conform to the shape of the roof tile 7, and then the entire lead plate 3 is beaten to be flat. Next, the joint between the lead plate 3 and the roof tile 7 is stopped with a caulking 5 or the like.
[0004]
[Problems to be solved by the invention]
However, when the lead plate 3 is used as described above, the joint hole of the fixing bracket 4, the joint portion between the draining plate 2 and the lead plate 3, and the joint portion between the lead plate 3 and the roof tile 7 are stopped by caulking or the like. There was a problem that it had to be watered, there were many steps during construction, and waterproofing was not sufficient.
In addition, when lead is exposed to wind and rain for a long period of time, there is a problem that it dissolves in rainwater and adversely affects the environment.
[0005]
The present invention has been made in view of the above circumstances, and it is an object to provide a waterproof sheet for roof that is easy to construct, has excellent waterproof properties, and does not adversely affect the environment, and a waterproof construction method using the same. And
[0006]
[Means for Solving the Problems]
[1] A roof waterproof sheet joined to a roof member,
It consists of a laminated sheet in which a metal sheet placed on the roof member side is bonded to one surface of a vulcanized rubber sheet as a surface material via an adhesive layer, and the laminated sheet is subjected to corrugation processing A roofing waterproof sheet characterized by being corrugated .
[2] The roofing waterproof sheet according to [1], wherein an adhesive sheet is bonded to the entire surface or a part of the metal sheet.
[3] The waterproof sheet for roof according to [2], wherein a release paper is bonded to the adhesive sheet.
[4] Using the roof waterproof sheet according to [2] or [3], an adhesive sheet is brought into contact with the uneven surface of the roof member , and the roof waterproof sheet is deformed and attached to the uneven surface. A waterproof construction method comprising joining a waterproof sheet to a roof member .
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described in detail below.
FIG. 1 is a schematic perspective view showing an example of a waterproof sheet for roof according to the present invention. FIG. 2 is an enlarged front view of a part of the end portion of the roofing waterproof sheet.
The roofing waterproof sheet of the present invention replaces the lead plate 3 shown in FIG.
The roof waterproof sheet 10 of this example is bonded to a roof member, and is attached to one surface of a vulcanized rubber sheet 11 which is a surface material, on the roof member side via a butyl rubber sheet 12 as an adhesive. It is made of a laminated sheet on which the aluminum sheet 13 to be disposed is bonded , and is corrugated to form a corrugated sheet. Moreover, the waterproof sheet 10 for the roof, long term durability, waterproofness, shape retention, is excellent in such as wind-resistant.
[0008]
Moreover, the waterproof sheet 10 for roof performs a corrugation process on the flat laminated sheet on which the vulcanized rubber sheet 11, the butyl rubber sheet 12, and the aluminum sheet 13 are bonded, and extends from one end 10a to the other end 10b. It is formed in a corrugated plate shape having a uniform waveform. By performing the corrugation process in this way, the length of the roof waterproof sheet 10 in the longitudinal direction is reduced, and is 15 to 30% shorter than the length of the flat laminated sheet in the longitudinal direction. When the length of the roof waterproof sheet 10 contracted in the longitudinal direction is less than 15%, the roof waterproof sheet 10 is difficult to follow the unevenness of the roof tile. On the other hand, if the length of the roof waterproof sheet 10 contracted in the longitudinal direction exceeds 30%, wrinkles occur on the surface of the roof waterproof sheet 10 during construction.
Moreover, the waveform by the corrugation process given to the waterproof sheet 10 for roofs is about 3-8 mm in depth t of the recessed part 10c, as shown in FIG. If the depth t of the recess 10c is less than 3 mm, the length is insufficient to follow the unevenness of the roof tile, and if the depth t of the recess 10c exceeds 8 mm, the surface of the roof waterproof sheet 10 during construction A wrinkle occurs.
[0009]
The vulcanized rubber sheet 11 is a surface material of the waterproof sheet 10 for roofs, vulcanized butyl rubber based on ethylene-propylene-diene terpolymer (EPDM), and formed into a sheet-like black rubber. It is a sheet. Moreover, the thickness of the vulcanized rubber sheet 11 is about 0.5 to 1.0 mm. Due to the presence of the vulcanized rubber sheet 11, the roof waterproof sheet 10 is excellent in bonding stability with a roof tile and the like and waterproof.
The butyl rubber sheet 12 is formed by molding butyl rubber into a sheet shape, and is used for bonding the vulcanized rubber sheet 11 and the aluminum sheet 13 together. Moreover, the thickness of the butyl rubber sheet 12 is about 0.6 to 1.0 mm.
The aluminum sheet 13 is made of an aluminum sheet having a thickness of about 0.08 to 0.12 mm. The presence of the aluminum sheet 13 makes the roof waterproof sheet 10 excellent in shape retention and fireproof performance.
Thus, since the waterproof sheet 10 for roofs is comprised with the above materials, the opening part of a roof member was sealed without a gap at the time of joining to roof members, such as a roof tile, and was stable over a long period of time. A waterproof structure is obtained.
[0010]
Etc. The junction of the roof opening parts used without a smooth shape skylights, roof members such as tiles is an uneven intense surface The shape of the roof element, such as tiles Ru different for respective types. In roof tarpaulin 10, the roof member such as a roof opening parts and tile in order to without any gap junctions, that have become the joint between corrugated. In addition, since the roof waterproof sheet 10 uses the aluminum sheet 13 as a constituent material, the roof waterproof sheet 10 easily deforms following the shape of the roof member and does not restore the original shape, so that it is joined to the roof member without a gap. Therefore, it is highly waterproof.
[0011]
In addition, an adhesive sheet 14 made of a butyl rubber sheet or the like is attached to the entire surface or a part of the aluminum sheet 13, and can be easily attached to a roof tile of a house. Moreover, since the opening which arises between the roof tile and the waterproof sheet 10 for roofs is stopped by the adhesive sheet 14, waterproofness is high.
Moreover, the thickness of the adhesive sheet 14 is 1.5 mm or more, and practically 2 mm or more. When the thickness is less than 1.5 mm, when the roof waterproof sheet 10 is joined to a roof tile or the like by hitting it with a wooden plank or the like and deformed along the shape of the tile, the cushioning action of the adhesive sheet 14 is insufficient. Thus, the aluminum sheet 13 may break. Further, if the thickness is 2 mm or more, even if some dust is present on the roof tile, the adhesive sheet 14 can completely stop the water. In addition, the pressure-sensitive adhesive sheet 14 can completely follow even small irregularities such as western tiles and can completely stop water. Furthermore, if the thickness of the pressure-sensitive adhesive sheet 14 is 2 mm or more, the unevenness of the roof waterproof sheet 10 is flattened by hitting with a hammer or the like. As a result, even if the roof waterproof sheet 10 extends in the longitudinal direction, the pressure-sensitive adhesive sheet 14 At the same time, since the film is stretched in the longitudinal direction, the waterproof performance is not deteriorated.
And the release paper is bonded on the sticking surface of the adhesive sheet 14 at the time of storage of the waterproof sheet 10 for roofs. Thereby, the sticking surface of the adhesive sheet 14 does not stick to anything other than the adherend such as roof tiles by mistake. Moreover, when the sticking surface is dirty and sticks to a tile or the like, sticking failure does not occur.
[0012]
Further, the aluminum sheet 13 may be subjected to drilling (not shown) at a portion that becomes a joint surface with a roof tile or the like. By performing the drilling process, the aluminum sheet 13 is more easily deformed and can be joined to a roof tile or the like without a gap. Moreover, the magnitude | size of the hole formed in the aluminum sheet 13 is not specifically limited, According to the shape of the roof tile etc. to which the waterproof sheet 10 for roofs is joined, it sets suitably.
[0013]
FIG. 3 is a schematic perspective view showing a first example of a waterproof construction method using the waterproof sheet for roof of the present invention.
First, in the waterproof sheet 10 for roofs, the part which joins the junction part 2a of the sewage draining board 2 is hit | struck several times with a wooden hammer etc., and a peak of a waveform is crushed. Next, the joint portion 10d of the roofing waterproof sheet 10 is folded back into a bowl shape. Next, a continuous butyl tape (not shown) in which string-like butyl rubber seals having a diameter of 2 mm are connected in parallel is attached to a joint surface of the joint portion 10d with the joint portion 2a of the draining plate 2. Next, the joint portion 2 a of the sewage draining plate 2 formed in a bowl shape in advance is fitted into the joint portion 10 d of the waterproof sheet 10 for roof. Next, the joint portion between the two is hit with a woodcutter. Thereby, the clearance gap of a junction part is filled with a continuous butyl tape, and water is stopped as a result. Therefore, there is no need for water stoppage by caulking at the joint. Next, the joint is fixed with a presser fitting 16 such as a screw. The through-hole formed in the roof waterproof sheet 10 when the presser fitting 16 is fixed is stopped by the continuous butyl tape and the butyl rubber sheet 12 constituting the roof waterproof sheet 10. Therefore, there is no need for water stoppage of the through hole by caulking.
Next, the roof waterproof sheet 10 is joined to the roof tile 7. First, the longitudinal ends of the waterproof sheet for roof 10 are positioned so as to be perpendicular to the longitudinal direction of the roof tile 7. Next, the both ends are hit with a woodcutter or the like so as to conform to the shape of the roof tile 7, and then the entire waterproof sheet for roof 10 is hit and flattened. Since the vulcanized rubber sheet 11 of the surface material of the roof waterproof sheet 10 is a black rubber sheet, a large number of wrinkles generated by hitting the roof waterproof sheet 10 are inconspicuous. Further, the other end portion 10 b of the roof waterproof sheet 10 is deformed following the uneven shape of the roof tile 7 by hitting it with a wooden prick or the like, and is in close contact with the roof tile 7. An adhesive sheet 14 is present at the joint between the other end 10b of the roof waterproof sheet 10 and the roof tile 7, and the two are joined together without a gap. Therefore, rainwater does not penetrate into the interior of the roof waterproof sheet 10 from the joint between the other end 10b of the roof waterproof sheet 10 and the roof tile 7, and a waterproof structure with excellent long-term reliability is obtained. Can do. Further, due to the presence of the adhesive sheet 14, there is no need to stop water by coking at the joint between the other end 10 b of the roof waterproof sheet 10 and the roof tile 7.
In addition, in the waterproof construction method using the roof waterproof sheet of the present invention, the roof waterproof sheet 10 and the sewage draining plate 2 are joined in advance before bringing them into the site even if they are performed on the construction site. May be.
[0014]
FIG. 4 is a schematic perspective view showing a second example of a waterproof construction method using the waterproof sheet for roof according to the present invention.
First, continuous butyl in which a string-like butyl rubber seal having a diameter of 2 mm is connected in parallel on the surface of one end portion 10a of the roof waterproof sheet 10 on the surface to be joined to the joining portion 2a of the sewage draining plate 2. Affix a tape (not shown). Next, the joining portion 2a of the sewage draining plate 2 is affixed onto the continuous butyl tape and joined to one end portion 10a of the roof waterproof sheet 10. Next, the joint portion between the two is hit with a woodcutter. Thereby, the clearance gap of a junction part is filled with a continuous butyl tape, and water is stopped as a result. Therefore, there is no need for water stoppage by caulking at the joint. Next, it is fixed with a presser fitting 16 such as a screw. The through-hole formed in the roof waterproof sheet 10 when the presser fitting 16 is fixed is stopped by the continuous butyl tape and the butyl rubber sheet 12 constituting the roof waterproof sheet 10. Therefore, there is no need for water stoppage of the through hole by caulking.
Hereinafter, the roof tile 7 and the roof waterproof sheet 10 are joined in the same manner as in the first example of the waterproof construction method using the roof waterproof sheet of the present invention shown in FIG.
[0015]
Hereinafter, specific examples will be described with reference to FIGS. 1, 2 and 3 to clarify the effects of the present invention.
[Example]
First, a butyl rubber sheet 12 having a penetration depth of 40 to 60 having a thickness of 1 mm and a length of 1000 mm was attached to one surface of a vulcanized rubber sheet 11 based on EPDM having a thickness of 0.6 mm and a length of 1000 mm. Next, an aluminum sheet 13 having a thickness of 100 μm and a length of 1000 mm was attached to the butyl rubber sheet 12 so that air could not enter the joint surface of the both, thereby obtaining a laminated sheet having a length of 1000 mm.
Next, the laminated sheet was corrugated so that the depth t of the recess 10c was 6 mm, and the waterproof sheet 10 for roof was obtained.
The length of the roof waterproof sheet 10 obtained was about 830 mm.
Next, a pressure-sensitive adhesive sheet 14 made of a butyl rubber sheet having a thickness of 2 mm was applied to the surface of the aluminum sheet 13 that was not attached to the butyl rubber sheet 12.
Next, the joint 10 d of the roof waterproof sheet 10 was folded back into a bowl shape, and the joint 2 a of the sewage draining plate 2 formed in a bowl shape in advance was fitted into the joint 10 d of the roof waterproof sheet 10. At this time, a continuous butyl tape (not shown) in which string-like butyl rubber seals having a diameter of 2 mm were connected in parallel was previously attached to the joint surface of the joint portion 10d. Next, the joint part between these two parts was hit with a woodcutter, and the gap between the joint parts was filled with continuous butyl tape to stop water. Next, the joint portion was fixed by a presser fitting 16 such as a screw.
Next, the adhesive sheet 14 is brought into contact with the concavo-convex surface of the roof tile 7, and the entire roof waterproof sheet 10 is deformed by hitting it with a woodwork or the like. Joined without gaps. Even when the waterproofing sheet 10 for roofs was hit with a wooden stick or the like, the adhesive sheet 14 having a thickness of 2 mm acted as a cushioning material, and the aluminum sheet 13 did not break. Moreover, the waterproof sheet 10 for roofs maintained the shape deform | transformed following the uneven | corrugated shape of the roof tile 7, and was able to hold | maintain the outstanding waterproof structure for a long period of time.
[0016]
【The invention's effect】
As described above, the waterproof sheet for roof according to the present invention is a laminated sheet in which a metal sheet is bonded to one surface of a vulcanized rubber sheet via an adhesive layer, and the corrugated sheet is corrugated in advance. Because it has been processed into a corrugated plate shape, it is easily deformed following the shape of the roof member when joined to a roof member such as a roof tile, and is not restored to its original shape. It is possible to obtain a stable waterproof structure over a long period of time. Moreover, since lead is not used, there is no adverse effect on the environment.
If the adhesive sheet is bonded to the entire surface or a part of the metal sheet, it can be easily applied to roof tiles, etc., and this roof waterproof sheet can be used for joining roof tiles, etc. Even if it is struck and deformed along the shape of the roof tile, the adhesive sheet acts as a cushioning material, and the aluminum sheet does not break. Moreover, a waterproof structure can be obtained without using caulking or the like.
If release paper is stuck on the said adhesive sheet, the sticking surface of an adhesive sheet will not stick to things other than roof members, such as a tile accidentally. Moreover, when the sticking surface is dirty and sticks to a tile or the like, sticking failure does not occur.
[0017]
Further, the waterproof construction method of the present invention uses the above-described waterproof sheet for roof, abuts the adhesive sheet on the uneven surface of the waterproof base, deforms and attaches the waterproof sheet for roof to the uneven surface, and waterproofs the roof Since the sheet is bonded to the waterproof base, rainwater does not penetrate into the roof waterproof sheet from the joint between the other end of the roof waterproof sheet and the roof tile, and the waterproof structure has excellent long-term reliability. Can be obtained.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing an example of a waterproof sheet for roof according to the present invention.
FIG. 2 is an enlarged front view of a part of the end of the waterproof sheet for roof according to the present invention.
FIG. 3 is a schematic perspective view showing a first example of a waterproof construction method using the waterproof sheet for roof according to the present invention.
FIG. 4 is a schematic perspective view showing a second example of a waterproof construction method using the roof waterproof sheet of the present invention.
FIG. 5 is a perspective view showing a roof opening part of a conventional skylight.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Skylight draining board, 2 ... Sewage draining board, 7 ... Roof tile, 10 ... Roof waterproof sheet, 10a ... One edge part, 10b ... Other edge part, 10c ... concave portion, 10d ... joint, 11 ... vulcanized rubber sheet, 12 ... butyl rubber sheet, 13 ... aluminum sheet, 14 ... adhesive sheet, 16 ... presser fitting

Claims (4)

屋根部材に接合される屋根用防水シートであって、
表面材である加硫ゴムシートの一方の面に、接着剤層を介して、屋根部材側に配置される金属シートが貼り合わされた積層シートからなり、該積層シートに波付け加工が施されて波板状とされたことを特徴とする屋根用防水シート。 A waterproof sheet for roof joined to a roof member,
It consists of a laminated sheet in which a metal sheet placed on the roof member side is bonded to one surface of a vulcanized rubber sheet as a surface material via an adhesive layer, and the laminated sheet is subjected to corrugation processing A roofing waterproof sheet characterized by being corrugated. 前記金属シートの全面もしくは一部の面に粘着シートが貼り合わされたことを特徴とする請求項１記載の屋根用防水シート。  The waterproof sheet for roof according to claim 1, wherein an adhesive sheet is bonded to the entire surface or a part of the surface of the metal sheet. 前記粘着シート上に剥離紙が貼り合わされていることを特徴とする請求項２記載の屋根用防水シート。The waterproof sheet for roof according to claim 2, wherein a release paper is laminated on the adhesive sheet. 請求項２または３に記載の屋根用防水シートを用いて、屋根部材の凹凸面に、粘着シートを当接し、この凹凸面に屋根用防水シートを変形させて添わせ、屋根用防水シートを屋根部材に接合することを特徴とする防水施工方法。Using the waterproof sheet for roof according to claim 2 or 3, an adhesive sheet is brought into contact with the uneven surface of the roof member , the roof waterproof sheet is deformed and attached to the uneven surface, and the roof waterproof sheet is attached to the roof. A waterproof construction method characterized by joining to a member .
JP2001302736A 2001-09-28 2001-09-28 Waterproof sheet for roof and waterproof construction method using the same Expired - Fee Related JP3834497B2 (en)

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JP4925221B2 (en) * 2008-07-31 2012-04-25 株式会社馬場商店 Wall tarpaulin
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