JP3848501B2

JP3848501B2 - Waterproof panel unit for entrance / exit corner and waterproof construction method at entrance / exit corner of external floor

Info

Publication number: JP3848501B2
Application number: JP22094599A
Authority: JP
Inventors: 充朗藤家
Original assignee: Sekisui House Ltd
Current assignee: Sekisui House Ltd
Priority date: 1999-08-04
Filing date: 1999-08-04
Publication date: 2006-11-22
Anticipated expiration: 2019-08-04
Also published as: JP2001040832A

Description

【０００１】
【発明の属する技術分野】
本発明は、バルコニー、屋上床、屋外廊下など、建物の外部に設けられて風雨に曝される外部床の防水構造に関し、特に、外部床の出入隅における防水構造に関する。
【０００２】
【従来の技術】
従来、バルコニーや屋上床などの外部床の防水には、外部床の構造材上に板材を配置して外部床下地を形成し、この外部床下地の上にならしモルタル層を設けて排水勾配を形成し、このモルタル層の上に防水シートを敷設して貼着する、という施工方法が採用されていた。
【０００３】
この場合、外部床の周囲には、通常、建物外壁やバルコニーの手摺壁等が立設され、これら建物外壁や手摺壁には外装材や開口部枠等が取り付けられる。そのため、これら建物外壁や手摺壁の下部には、外装材や開口部枠の下端まで立ち上がる腰壁が形成され、外部床の周縁はそれら腰壁に連続することとなる。したがって、前記防水シートは、外部床の周縁から上方に延出させて腰壁の上縁部まで水密的に貼着される必要があった。
【０００４】
【発明が解決しようとする課題】
しかしながら、前記従来の施工方法では、モルタル層の上に防水シートを敷設する際に専門職人が必要であり、その専門職人が外装等の取り付け作業を主とする外装工事現場に入らなければならないので、工程管理面での不便や制約が大きかった。
【０００５】
また、モルタル層に排水勾配を形成するのに正確な左官作業を要するとともに、防水シートを外部床全体に平坦にかつ隙間なく敷設する必要があるため、作業自体に相当の手間と時間がかかっていた。
【０００６】
さらに、外部床の四隅や建物外壁の突出部など、外部床を囲む腰壁が出入隅や入隅を形成する箇所においては、平面的な防水シートをそのまま延出させて腰壁に水密的に貼着するのが無理なので、防水シートを適当にカットするなどして出入隅や入隅に密着しうるコーナー役物を作成しているが、このような作業にも手間や時間がかかり、また、施工精度によっては十分な水密性が確保できないおそれもあった。
【０００７】
本発明はこのような事情に鑑みてなされたもので、外部床の防水作業を容易に行うことができ、特に、外部床の周囲に設けられた二面の腰壁が前後方向への段差面を挟んで連続する箇所において、この段差面の両側に形成される出隅と入隅（本明細書において、これらを一体にして「出入隅」という。）に対しての施工性や水密性を改善することのできる出入隅用防水パネルユニットと、これを利用した外部床の出入隅における防水施工方法を提供することを目的としている。
【０００８】
【課題を解決するための手段】
本発明の出入隅用防水パネルユニットは、外部床の周囲に設けられた二面の腰壁が出入隅を挟んで連続する箇所の防水に使用される出入隅用防水パネルユニットであって、隣接する三辺が出入隅の平面形状に沿うように形成された断熱材と、この断熱材上に貼着された平坦部及び平坦部の前記三辺のうちの外側の二辺からそれぞれ立ち上げられた一対の立ち上がり部を有し、各立ち上がり部の上縁近傍にそれぞれビス孔が形成されてなる耐水鋼板と、この耐水鋼板における平坦部の腰壁側の各縁部近傍から各立ち上がり部の下部にわたってそれぞれ貼着され、各立ち上がり部の上方まで延出された一対の軟質樹脂製の防水シートと、出入隅に沿うように折曲形成された三面の直立部を有し、前記耐水鋼板の両立ち上がり部にわたって固着された補強部材と、出入隅に沿うように一体的かつ水密的に形成された三面の立面部及び一面の底面部を有し、前記一対の防水シートの出入隅側の各縁部及び前記補強部材に被さるようにして貼着された軟質樹脂製の出入隅カバーと、出入隅に沿うように折曲形成された三面の直立部を有し、外側二面の直立部の外側の縁部近傍にそれぞれビス孔が形成されるとともに、中央の直立部及び外側二面の直立部の中央寄りの縁部近傍が前記出入隅カバーの立面部の背面に貼着されてなる取付部材と、を備えることを特徴とする。
【０００９】
すなわち、本発明の出入隅用防水パネルユニットは、耐熱鋼板及び防水シートが出入隅を挟んで不連続となる箇所に、一体的かつ水密的に形成された出入隅カバーを予め貼着することによって、出入隅周辺を水密的に被覆しうるように形成されたものである。
【００１０】
そして、本発明の外部床の出入隅における防水施工方法は、この出入隅用防水パネルユニットを出入隅の外部床下地上に配置し、接着剤を介して断熱材を外部床下地上に固定するとともに、出入隅を形成する二面の腰壁に耐水鋼板の各立ち上がり部をそれぞれビス固定した後、取付部材を腰壁の出入隅にビス固定し、次いで防水シート及び出入隅カバーの立面部を腰壁に沿って伸展させることにより、出入隅周辺を水密的に被覆することを特徴とする。
【００１１】
これにより、耐水鋼板及び防水シートの出入隅側の縁部を出入隅の形状に合わせて現場で加工するような面倒な作業を要することなく、外部床の出入隅における防水作業を、一般部と同様にして簡単に行うことができる。こうして、防水作業の施工性は格段に向上し、また安定した施工精度が確保されることとなる。
【００１２】
【発明の実施の形態】
以下、本発明の実施の形態について、図面を参照しつつ説明する。
【００１３】
まず、外部床を囲む腰壁が出隅や入隅を形成する箇所以外の一般部における防水構造と、その施工方法について説明する
外部床の一般部における防水構造は、図１に示すように、ＡＬＣ床板等からなる外部床下地Ｐの上に貼着された断熱材１と、この断熱材１の表面に貼着された耐水鋼板２と、この耐水鋼板２の上に貼設された防水シート３と、防水シート３の上縁部に沿って取り付けられる水切り部材４とから構成される。
【００１４】
断熱材１は、発泡ポリスチレン樹脂等からなる板状体で、接着剤を介して外部床下地Ｐ上に貼着される。
【００１５】
耐水鋼板２は、鋼製薄板の表面又は表裏両面に塩化ビニル等による耐水性被膜を形成したもので、断熱材１上に重ねて貼着される平坦部２１と、平坦部２１の一方の縁部を上方に折曲して形成された立ち上がり部２２とを備え、この立ち上がり部２２が腰壁Ｑに沿ってあてがわれ、腰壁Ｑにビス止めされる。
【００１６】
防水シート３は、軟質塩化ビニル等の樹脂からなり、耐水鋼板２の平坦部２１の腰壁Ｑ側の縁部近傍から立ち上がり部２２に沿って貼着され、さらに上方に延出されて、腰壁Ｑの上縁部までを被覆する。
【００１７】
さらに、腰壁Ｑの上縁部には、外装材や開口部枠Ｒ等の下端に沿って長尺の水切り部材４が取り付けられ、防水シート３を押さえるようにして腰壁Ｑにビス止めされる。こうして、外装材や開口部枠Ｒと腰壁Ｑとの境界部分が止水される。
【００１８】
このように、外部床の表面の防水層の大部分を耐水鋼板２によって形成することにより、防水シート３の貼着に伴う作業を大幅に軽減することができる。
【００１９】
この防水構造については、断熱材１、耐水鋼板２及び防水シート３を予め工場等で所定の形状に加工・貼合して防水パネルを形成し、この防水パネルを施工現場に搬入して敷設するという手段により、施工現場での作業をさらに効率化することができる。図２及び図３に、防水パネルの実施の形態を示す。
【００２０】
防水パネルとしては、外部床を囲む腰壁Ｑの直線状部分に沿って配置される一般部用床パネル５Ａ（図２）と、一般部用床パネル５Ａの表面上を流下する雨水を集めて排水するために外部床の水下側に配置される樋パネル５Ｂ（図３）とが用意される。
【００２１】
一般部用床パネル５Ａは、平面視矩形の断熱材１に耐水鋼板２の平坦部２１を貼着し、平坦部２１の一辺に上方に立ち上がる立ち上がり部２２を形成したもので、立ち上がり部２２の上縁近傍には、この立ち上がり部２２を腰壁Ｑにビス止めするためのビス孔２２１が複数個、水平方向に間隔をあけて設けられている。また、断熱材１は、その厚さが立ち上がり部２２側から対辺側に向けて次第に薄くなるように形成され、これにより耐水鋼板２の表面に排水勾配が付与されている。耐水鋼板２の平坦部２１には、立ち上がり部２２側の縁部近傍から立ち上がり部２２にかけて防水シート３が貼着され、この防水シート３が立ち上がり部２２よりもさらに上方に延出されている。ただし、この防水シート３は、立ち上がり部２２の上縁近傍のビス孔２２１付近には接着されておらず、防水シート３の延出部分を下方にめくると立ち上がり部２２に設けられたビス孔２２１が露出して、そのままビス止め作業ができるようになっている。
【００２２】
樋パネル５Ｂは、平面形状が一般部用床パネル５Ａよりも細長く形成され、その長手方向に沿って、耐水鋼板２の平坦部２１を折曲して形成された排水溝２３が設けられている。平坦部２１及び排水溝２３の下面には断熱材１が貼着されている。耐水鋼板２の長辺側の縁部の一方には立ち上がり部２２が形成され、立ち上がり部２２の上縁近傍にはビス孔２２１が複数個、水平方向に間隔をあけて設けられている。そして、防水シート３が、その下縁部を立ち上がり部２２の下部に接着して取り付けられ、立ち上がり部２２の上方まで延出されている。また、耐水鋼板２の長辺側の縁部の他方には、垂下片部２４１と水平片部２４２とからなる断面略Ｌ字型の接合部２４が形成されている。接合部２４の水平片部２４２には、これを外部床下地Ｐにビス止めするためのビス孔２４３が複数個、間隔をあけて設けられている。
【００２３】
これら一般部用床パネル５Ａ及び樋パネル５Ｂを使用して外部床の一般部の防水作業を行う際の施工方法について、図４を参照して説明する。
【００２４】
まず、樋パネル５Ｂを、外部床下地Ｐと溝受け部材Ｓとの間に形成された凹部Ｔに排水溝２３を落とし込むようにして配置し、立ち上がり部２２を腰壁Ｑに、接合部２４の水平片部２４２を外部床下地Ｐに、それぞれビス止めする。樋パネル５Ｂの縁端部については、図示しないエンド部材によって止水する。
【００２５】
次いで、一般部用床パネル５Ａを、その水下側の縁部で樋パネル５Ｂの水平片部２４２を押さえるようにして外部床下地Ｐ上に載置し、接着剤を介して外部床下地Ｐ上に固定するとともに、立ち上がり部２２を腰壁Ｑにビス止めする。
【００２６】
こうして、一般部用床パネル５Ａ及び樋パネル５Ｂが所定の位置に配置されたならば、それぞれに貼着された防水シート３を腰壁Ｑに沿って立ち上げ、接着剤や釘等を用いてその上縁部を腰壁Ｑに仮止めする。これによって、立ち上がり部２２を腰壁Ｑに固定するビスの頭部も被覆される。腰壁Ｑの高さは建物の種類や外壁の仕様等によって変化するが、防水シート３の延出部分を予め多少長めにしておけば、腰壁Ｑの高さに合わせて防水シート３を適宜カットすることで、確実に腰壁Ｑの上縁部までを被覆することができる。
【００２７】
隣り合う各一般部用床パネル５Ａ及び樋パネル５Ｂの間には、それぞれ若干の隙間を有する目地Ｕが形成されるので、これらの目地Ｕを粘着テープ６１及びパッチベルト６２を用いて封止する。
【００２８】
粘着テープ６１は、クラフトテープ等に代表される耐水性を備えた合成紙又は布製のテープである。目地Ｕの幅の２倍程度の幅のクラフトテープを、隣り合う一般部用床パネル５Ａ・樋パネル５Ｂにまたがるようにして目地Ｕの上に貼着する。
【００２９】
パッチベルト６２は、軟質塩化ビニル等の樹脂からなる帯状部材で、その幅は前記粘着テープ６１よりもさらに幅広に形成されている。パッチベルト６２の裏面は、粘着テープ６１の幅に相当する中央部分を除いて両側縁部に粘着面が形成されている。このパッチベルト６２を、中央部分の非粘着面が前記粘着テープ６１に重なるようにして、両側縁部の粘着面を隣り合う一般部用床パネル５Ａ・樋パネル５Ｂの表面に貼着する。
【００３０】
粘着テープ６１及びパッチベルト６２は、耐水鋼板２の表面から、腰壁Ｑに沿って仮止めされた防水シート３の上部まで連続するように貼着する。これにより、各一般部用床パネル５Ａ・樋パネル５Ｂの間の目地Ｕが水密的に封止されるとともに、各一般部用床パネル５Ａ・樋パネル５Ｂが相互に水平移動した場合でも、目地Ｕの間隔の変位を吸収できることとなる。
【００３１】
外部床の表面から腰壁Ｑの上縁部までが、耐水鋼板２、防水シート３及びパッチベルト６２によって水密的に被覆されたならば、腰壁Ｑの上縁部に沿って図１に示した水切り部材４を取り付け、防水シート３の上縁部を押さえるようにして腰壁Ｑにビス止めする。最後に、水切り部材４の上縁部と外装材や開口部枠Ｒの下端との間にシーリング４１を施す。こうして、外装材や開口部枠Ｒと腰壁Ｑとの境界部分も止水される。
【００３２】
このように、断熱材１、耐水鋼板２及び防水シート３を予め所定の形状に加工・貼合して形成した防水パネル（一般部用床パネル５Ａ、樋パネル５Ｂ）を外部床に載置・固定することにより、施工現場における面倒な左官作業や防水シート３の貼着作業が不要になり、外部床の防水作業を効率的に、かつ精度よく行なうことができる。防水シート３は湾曲容易な軟質樹脂からなるので、これを予め耐水鋼板２に貼着しておいたとしても、運搬や保管等の面での支障を小さくすることができる。
【００３３】
本発明は、図５に示すように、外部床を囲む二面の腰壁Ｑ（Ｑ１，Ｑ２）が段差面ｑを挟んで連続する箇所において、この段差面ｑによって形成された出入隅に、前記一般部に連続する防水構造を効率的に、かつ精度よく施工するためのものである。以下、その実施の形態について、図５乃至図８を参照して説明する。
【００３４】
外部床の出入隅における防水構造は、出入隅の形状に合わせて用意された防水パネルである出入隅用床パネル５Ｃ（図７）と、この出入隅用床パネル５Ｃを補強するための補強部材７と、この補強部材７に重ねて貼着された出入隅用防水役物８と、からなる出入隅用防水パネルユニット５０Ｃ（図８）を使用して構成されている。
【００３５】
出入隅用床パネル５Ｃは、一般部に配置される前記一般部用床パネル５Ａと同様に、断熱材１と、断熱材１の表面に貼着された耐水鋼板２と、耐水鋼板２の表面に貼着された防水シート３とからなり、出入隅に沿うようにして外部床下地Ｐ上に固定されている。断熱材１、耐水鋼板２及び防水シート３の素材については前記と同様である。
【００３６】
断熱材１は、その三辺が出入隅の段差面ｑとその両側に連続する二面の腰壁Ｑ１，Ｑ２とに合致するような平面形状を有し、出入隅側から対角方向或いはいずれかの対辺方向に向けて適当な排水勾配が付与されている。この断熱材１は、接着剤を介して外部床下地Ｐ上に接着されている。
【００３７】
耐水鋼板２は、断熱材１上に貼着された平坦部２１と、平坦部２１の腰壁Ｑ１，Ｑ２側の二辺からそれぞれ上方に立ち上げられた一対の立ち上がり部２２とを備えている。これら各立ち上がり部２２は、出入隅の稜角部及び隅角部に面する縁部を斜めに切り込んだ平板状の耐水鋼板２を折曲して形成されるため、段差面ｑに面する部分が不連続となる。各立ち上がり部２２の上縁近傍には、ビス孔２２１が複数個、水平方向に間隔をあけて設けられ、このビス孔２２１を利用して、各立ち上がり部２２が腰壁Ｑ１，Ｑ２にそれぞれビス止めされている。
【００３８】
防水シート３は、耐水鋼板２の平坦部２１の腰壁Ｑ１，Ｑ２側の縁部近傍から各立ち上がり部２２に沿ってそれぞれ貼着され、各立ち上がり部２２の上縁よりも上方まで延出している。したがって、これら各防水シート３も、出入隅に面する部分が不連続となる。各防水シート３は、その下縁部が予め耐水鋼板２の平坦部２１と各立ち上がり部２２の下部にのみ接着されており、上部をめくって立ち上がり部２２を腰壁Ｑ１，Ｑ２にビス止めすることができるようになっている。各防水シート３は、腰壁Ｑ１，Ｑ２の高さに合わせてカットされ、上方に伸展されて、立ち上がり部２２及びこれを腰壁Ｑ１，Ｑ２にビス止めしているビスの頭部を被覆している。
【００３９】
補強部材７は、耐水鋼板２と同様の樹脂被膜鋼板を折曲して形成された部材で、出入隅に沿うように折曲されて連続する三面の直立部７１と、各直立部７１の下縁から水平に張り出す水平部７２とを備えている。この補強部材７は、外側二面の直立部７１が出入隅用床パネル５Ｃの耐水鋼板２の両立ち上がり部２２にわたるようにして溶接されている。これによって、互いに不連続に形成された左右の立ち上がり部２２が出入隅に沿って構造的に連結され、各立ち上がり部２２の直立状態が安定的に保持されるとともに、出入隅周辺に応力が集中した場合に耐水鋼板２が変形・損傷するのを防止することができる。
【００４０】
なお、この補強部材７は、少なくとも出入隅に沿って左右の立ち上がり部２２を連結しうる三面の直立部７１を有するものであればよく、水平部７２の有無やその形状は特に問わない。
【００４１】
出入隅用防水役物８は、軟質塩化ビニル等の樹脂を射出成型するなどして予め一体的かつ立体的に形成された出入隅カバー８１と、その背面に取り付けられた樹脂被膜鋼板製の取付部材８２とからなる。
【００４２】
出入隅カバー８１は、出入隅に沿うように形成された三面の立面部８１１と、それらの下縁に一体的に連続する底面部８１２とを備え、各立面部８１１と底面部８１２とは互いに隙間なく水密的に形成されている。これら立面部８１１及び底面部８１２は、前記補強部材７を被覆し、かつ、外側の両縁部の幅が出入隅用床パネル５Ｃの左右の防水シート３にまたがる大きさに形成されている。また、立面部８１１の高さは、出入隅用床パネル５Ｃの防水シート３の延出高さと同程度に形成されている。
【００４３】
取付部材８２は、出入隅に沿うように折曲されて連続する三面の直立部８２１を有し、外側二面の直立部８２１の外側の縁部近傍にはビス孔８２２がそれぞれ設けられている。この取付部材８２は、中央の直立部８１１と、外側二面の直立部８２１の中央寄りの縁部近傍が、出入隅カバー８１の立面部８１１の背面に予め接着されており、出入隅カバー８１の外側二面の立面部８１１の縁部を手前にめくって取付部材８２を腰壁Ｑ１，Ｑ２にビス止めすることができるようになっている。この取付部材８２を、出入隅を挟む二面の腰壁Ｑ１，Ｑ２にビス止することにより、出入隅カバー８１が出入隅に引き付けられる。そして、出入隅カバー８１の外側二面の立面部８１１が伸展されると、取付部材８２は出入隅カバー８１の背後に被覆される。外側二面の立面部８１１の外側の縁部は、出入隅の両側にそれぞれ伸展された各防水シート３の出入隅側の縁部にそれぞれ被せられ、接着剤を介して各防水シート３及び耐水鋼板２に接着されている。
【００４４】
このように、耐熱鋼板２とその表面に貼着した防水シート３とが出入隅を挟んで不連続となる箇所に、一体的かつ水密的に形成された出入隅カバー８１が貼着されることにより、隙間のない防水面が一体に形成されて出入隅周辺が水密的に被覆される。この出入隅カバー８１は、その背面に貼着された取付部材８２を介して腰壁Ｑ１，Ｑ２にビス止めされるとともに、背面の縁部に塗布された接着剤を介して防水シート３の上に接着されるので、出入隅に沿って確実に保持され、その取り付けも容易である。また、耐水鋼板２の両立ち上がり部２２を連結する補強部材７や出入隅カバー８１の背面に貼着された取付部材８２によって、出入隅周辺の各部材の取り付け状態も強化される。
【００４５】
本発明の出入隅用防水パネルユニット５０Ｃは、出入隅用床パネル５Ｃと補強部材７と出入隅用防水役物８とを予め工場等で一体に形成した部材である。補強部材７は、耐水鋼板２の左右の立ち上がり部２２にわたって溶接されている。また、出入隅用防水役物８は、出入隅カバー８１の背面に塗布した接着剤を介して、耐水鋼板２の平坦部２１及び防水シート３の出入隅側の縁部に重ねて接着されている。
【００４６】
そして、予め一体に形成した出入隅用防水パネルユニット５０Ｃを現場に搬入して外部床の出入隅に設置するという施工方法により、施工現場における各部材相互の取付・貼着作業を軽減して、施工性を高めることができる。この場合でも、防水シート３や出入隅カバー８１は軟質樹脂製であるため、これらを適当に折り畳むことができる。したがって、立体的な形状を有する出入隅カバー８１の背面に取付部材８２が貼着されていても、運搬や保管等の面での支障を小さくすることができる。
【００４７】
かかる出入隅用防水パネルユニット５０Ｃを使用した防水施工方法については以下の通りである。
【００４８】
まず、出入隅用防水パネルユニット５０Ｃを出入隅に沿って外部床下地Ｐ上に載置する。接着剤を介して断熱材１を外部床下地Ｐに接着するとともに、耐水鋼板２の表面に貼着された防水シート３を手前にめくって、出入隅を形成する二面の腰壁Ｑ１，Ｑ２に耐水鋼板２の各立ち上がり部２２をそれぞれビス止めする。
【００４９】
次いで、出入隅用防水役物８を出入隅の稜角部及び隅角部にあてがい、出入隅カバー８１の外側二面の立面部８１１の縁部を手前にめくって、取付部材８２を腰壁Ｑ１，Ｑ２にビス止めする。
【００５０】
そして、防水シート３及び出入隅カバー８１の外側二面の立面部８１１を腰壁Ｑ１，Ｑ２に沿って立ち上げ、それらの上縁部を腰壁Ｑ１，Ｑ２の高さに揃えてカットした後、接着剤や釘等を用いて各腰壁Ｑ１，Ｑ２に仮止めする。
【００５１】
出入隅用防水パネルユニット５０Ｃと前記一般部に配置される一般部用床パネル５Ａや樋パネル５Ｂとが隣接する部分については、その目地Ｕを、前述のように、粘着テープ６１及びパッチベルト６２を用いて封止する。
【００５２】
最後に、腰壁Ｑ１，Ｑ２及び段差面ｑの上縁部に沿って水切り部材４を取り付け、一般部と連続するようにして固定し、シーリング４１を施す。この際、出入隅の形状に合わせて屈曲させた出入隅用水切り部材（図示せず）を別途用意して取り付けてもよい。
【００５３】
【発明の効果】
以上に述べたように、出入隅における耐熱鋼板及び防水シートの不連続箇所に一体的かつ水密的に形成された出入隅カバーが予め貼着されてなる出入隅用防水パネルユニットを使用することにより、耐水鋼板や防水シートの出入隅側の縁部を出入隅の形状に合わせて現場で加工するような面倒な作業を要することなく、外部床の出入隅における防水作業を、一般部と同様にして簡単に行うことができる。こうして、防水作業の施工性は格段に向上し、また安定した施工精度が確保されることとなる。
【図面の簡単な説明】
【図１】外部床の一般部における防水構造の実施の形態を示す縦断面図である。
【図２】前記一般部の防水構造に用いられる一般部用床パネルの構成を示す斜視図である。
【図３】前記一般部の防水構造に用いられる樋パネルの構成を示す斜視図である。
【図４】前記一般部用床パネル及び樋パネルを使用して一般部の防水作業を行う際の施工状態を示す斜視図である。
【図５】外部床の出入隅における防水構造の実施の形態を示す分解斜視図である。
【図６】図５の防水構造の、腰壁の稜角部近傍又は隅角部近傍における縦断面図である。
【図７】図５の防水構造に用いられる出入隅用床パネルの構成を示す斜視図である。
【図８】本発明の出入隅用防水パネルユニットの実施の形態を示す斜視図である。
【符号の説明】
Ｐ外部床下地
Ｑ（Ｑ１，Ｑ２）腰壁
１断熱材
２耐水鋼板
２１平坦部
２２立ち上がり部
２２１立ち上がり部のビス孔
３防水シート
５０Ｃ出入隅用防水パネルユニット
７補強部材
７１直立部
８１出入隅カバー
８１１立面部
８１２底面部
８２取付部材
８２１取付部材の直立部
８２２取付部材のビス孔[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a waterproof structure of an external floor that is provided outside a building, such as a balcony, a rooftop floor, and an outdoor corridor, and that is exposed to wind and rain, and more particularly, to a waterproof structure at an entrance / exit corner of the external floor.
[0002]
[Prior art]
Conventionally, waterproofing of external floors such as balconies and rooftops has been done by placing a board on the structural material of the external floor to form an external floor base, and providing a mortar layer on the external floor base to provide a drainage gradient. The construction method of laying and sticking a waterproof sheet on this mortar layer was employed.
[0003]
In this case, an outer wall of a building, a handrail wall of a balcony or the like is usually erected around the outer floor, and an exterior material, an opening frame, or the like is attached to the outer wall of the building or the handrail wall. Therefore, a waist wall that rises up to the lower end of the exterior material and the opening frame is formed in the lower part of the outer wall of the building and the handrail wall, and the peripheral edge of the outer floor is continuous with the waist wall. Accordingly, the waterproof sheet has to be attached to the upper edge of the waist wall in a watertight manner by extending upward from the periphery of the external floor.
[0004]
[Problems to be solved by the invention]
However, in the conventional construction method, when a waterproof sheet is laid on the mortar layer, an expert craftsman is required, and the craftsman has to enter the exterior construction site mainly for mounting work such as exterior. Inconvenience and restrictions in process management were great.
[0005]
In addition, it requires precise plastering work to form a drainage gradient in the mortar layer, and it is necessary to lay the waterproof sheet flat and without gaps on the entire external floor, so the work itself takes considerable effort and time. It was.
[0006]
Furthermore, in places where the waist wall that surrounds the external floor, such as the four corners of the external floor and the protrusions on the outer wall of the building, forms the entrance / exit corner or the entrance corner, a flat waterproof sheet is extended as it is to make the waist wall watertight. Since it is impossible to stick, we have created a corner accessory that can be attached to the entrance and exit corners by appropriately cutting the waterproof sheet, etc., but such work also takes time and effort, Depending on construction accuracy, there is a possibility that sufficient water tightness cannot be secured.
[0007]
The present invention has been made in view of such circumstances, and can easily perform waterproofing work on the outer floor. In particular, the two waist walls provided around the outer floor are step surfaces in the front-rear direction. In the place that is continuous across the step, the workability and water tightness for the corners and the corners that are formed on both sides of the stepped surface (in this specification, these are referred to as the “portion corner”). It is an object of the present invention to provide a waterproof panel unit for entry / exit corners that can be improved and a waterproof construction method at the entrance / exit corners of an external floor using the same.
[0008]
[Means for Solving the Problems]
The waterproof panel unit for entry / exit corners of the present invention is a waterproof panel unit for entry / exit corners that is used for waterproofing a place where two waist walls provided around the outer floor are continuous across the entry / exit corner, The heat insulating material formed so that the three sides follow the planar shape of the entrance / exit corner, and the flat portion stuck on the heat insulating material and the outer two sides of the three sides of the flat portion are respectively raised. A water-resistant steel plate having a pair of rising portions, each having a screw hole formed in the vicinity of the upper edge of each rising portion, and the lower portion of each rising portion from the vicinity of each edge portion on the waist wall side of the flat portion of this water-resistant steel plate Each of the water-resistant steel sheets, and a pair of soft resin waterproof sheets extending up above each rising part, and three upright parts bent along the entrance and exit corners. Fixed over the rising part Reinforcing members, three surface elevations and one bottom surface formed integrally and watertight so as to be along the entry / exit corner, each edge on the entry / exit corner side of the pair of waterproof sheets and the reinforcement member A soft resin entrance / exit corner cover that is attached so as to cover the surface, and a three-sided upright portion that is bent along the entrance / exit corner, in the vicinity of the outer edge of the upright portion of the two outer sides. A screw hole is formed, and an attachment member is formed by adhering the vicinity of the center of the center upright part and the upright part of the two outer surfaces to the back of the upright part of the entrance / exit corner cover. It is characterized by that.
[0009]
That is, the waterproof panel unit for entry / exit corners of the present invention is obtained by sticking an entrance / exit corner cover formed integrally and watertight in advance to a place where the heat-resistant steel plate and the waterproof sheet are discontinuous across the entrance / exit corner. It is formed so that the periphery of the entrance / exit corner can be covered in a watertight manner.
[0010]
And the waterproof construction method at the entrance / exit corner of the external floor of the present invention is to arrange this waterproof panel unit for entrance / exit corner on the external floor base of the entrance / exit corner, and fix the heat insulating material on the external floor base via an adhesive, After fixing each rising part of the water-resistant steel plate to the two waist walls that form the entrance / exit corners, fix the mounting members to the entrance / exit corners of the waist wall, and then attach the waterproof sheet and the elevation part of the entrance / exit corner cover to the waist By extending along the wall, the area around the entrance and exit corners is covered in a watertight manner.
[0011]
As a result, the waterproof work at the entrance / exit corner of the external floor can be carried out with the general part without requiring troublesome work such as processing the edge of the entrance / exit corner side of the waterproof steel sheet and the waterproof sheet to the shape of the entrance / exit corner. It can be done easily in the same way. Thus, the workability of the waterproof work is greatly improved, and stable construction accuracy is ensured.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0013]
First, the waterproof structure in the general part other than the place where the waist wall surrounding the external floor forms the corners and corners, and the waterproof structure in the general part of the external floor to explain the construction method, as shown in FIG. A heat insulating material 1 stuck on an external floor base P made of an ALC floor board, a water-resistant steel plate 2 stuck on the surface of the heat insulating material 1, and a waterproof sheet stuck on the water-resistant steel plate 2 3 and a draining member 4 attached along the upper edge of the waterproof sheet 3.
[0014]
The heat insulating material 1 is a plate-like body made of expanded polystyrene resin or the like, and is stuck on the external floor base P via an adhesive.
[0015]
The water-resistant steel plate 2 is formed by forming a water-resistant film made of vinyl chloride or the like on the surface or both front and back surfaces of a steel thin plate, and a flat portion 21 that is stuck on the heat insulating material 1 and one edge of the flat portion 21. And a rising portion 22 formed by bending the portion upward. The rising portion 22 is applied along the waist wall Q and is screwed to the waist wall Q.
[0016]
The waterproof sheet 3 is made of a resin such as soft vinyl chloride, and is attached along the rising portion 22 from the vicinity of the edge on the waist wall Q side of the flat portion 21 of the water-resistant steel plate 2, and is further extended upward to Cover up to the top edge of wall Q.
[0017]
Further, a long draining member 4 is attached to the upper edge of the waist wall Q along the lower end of the exterior material, the opening frame R, etc., and is screwed to the waist wall Q so as to hold the waterproof sheet 3. The In this way, the boundary between the exterior material and the opening frame R and the waist wall Q is stopped.
[0018]
Thus, by forming most of the waterproof layer on the surface of the external floor with the water-resistant steel plate 2, the work involved in sticking the waterproof sheet 3 can be greatly reduced.
[0019]
About this waterproof structure, the heat insulating material 1, the water-resistant steel plate 2, and the waterproof sheet 3 are processed and bonded in advance to a predetermined shape in a factory or the like to form a waterproof panel, and this waterproof panel is carried to the construction site and laid. By this means, the work at the construction site can be made more efficient. 2 and 3 show an embodiment of a waterproof panel.
[0020]
As the waterproof panel, collect the rain water flowing down on the surface of the general part floor panel 5A (FIG. 2) and the general part floor panel 5A arranged along the linear part of the waist wall Q surrounding the external floor. A dredging panel 5B (FIG. 3) arranged on the lower side of the external floor for draining is prepared.
[0021]
The general part floor panel 5A is formed by sticking a flat part 21 of the water-resistant steel plate 2 to the heat insulating material 1 having a rectangular shape in plan view and forming a rising part 22 rising upward on one side of the flat part 21. In the vicinity of the upper edge, a plurality of screw holes 221 for screwing the rising portion 22 to the waist wall Q are provided at intervals in the horizontal direction. Further, the heat insulating material 1 is formed so that its thickness gradually becomes thinner from the rising portion 22 side toward the opposite side, whereby a drainage gradient is given to the surface of the water-resistant steel plate 2. A waterproof sheet 3 is attached to the flat portion 21 of the water-resistant steel plate 2 from the vicinity of the edge on the rising portion 22 side to the rising portion 22, and the waterproof sheet 3 extends further upward than the rising portion 22. However, the waterproof sheet 3 is not bonded in the vicinity of the screw hole 221 near the upper edge of the rising portion 22, and the screw hole 221 provided in the rising portion 22 when the extending portion of the waterproof sheet 3 is turned downward. Is exposed and can be screwed as it is.
[0022]
The eaves panel 5 B has a planar shape that is longer than that of the general floor panel 5 A, and is provided with a drainage groove 23 formed by bending the flat portion 21 of the water-resistant steel plate 2 along its longitudinal direction. . The heat insulating material 1 is attached to the lower surface of the flat portion 21 and the drainage groove 23. A rising portion 22 is formed on one of the edges on the long side of the water-resistant steel plate 2, and a plurality of screw holes 221 are provided in the vicinity of the upper edge of the rising portion 22 at intervals in the horizontal direction. The waterproof sheet 3 is attached with its lower edge bonded to the lower part of the rising part 22 and extends to above the rising part 22. Further, on the other of the long side edges of the water-resistant steel plate 2, a joint portion 24 having a substantially L-shaped cross section composed of a hanging piece 241 and a horizontal piece 242 is formed. The horizontal piece portion 242 of the joint portion 24 is provided with a plurality of screw holes 243 at intervals with screws for fastening the same to the external floor base P.
[0023]
A construction method for performing waterproofing work on the general part of the external floor using the general part floor panel 5A and the eaves panel 5B will be described with reference to FIG.
[0024]
First, the heel panel 5B is arranged so that the drainage groove 23 is dropped into the recess T formed between the external floor base P and the groove receiving member S, the rising portion 22 is placed on the waist wall Q, and the joint portion 24 is placed. The horizontal piece 242 is screwed to the external floor base P. The edge part of the eaves panel 5B is stopped by an end member (not shown).
[0025]
Next, the general-purpose floor panel 5A is placed on the external floor base P so as to hold the horizontal piece 242 of the heel panel 5B at its lower edge, and the external floor base P is bonded via an adhesive. While fixing to the top, the rising portion 22 is screwed to the waist wall Q.
[0026]
Thus, when the general part floor panel 5A and the heel panel 5B are disposed at predetermined positions, the waterproof sheets 3 attached to the respective parts are raised along the waist wall Q, and an adhesive, a nail or the like is used. The upper edge is temporarily fixed to the waist wall Q. As a result, the head of the screw that fixes the rising portion 22 to the waist wall Q is also covered. The height of the waist wall Q varies depending on the type of building and the specifications of the outer wall, etc. However, if the extension part of the waterproof sheet 3 is made a little longer in advance, the waterproof sheet 3 is appropriately adjusted according to the height of the waist wall Q. By cutting, it is possible to reliably cover up to the upper edge of the waist wall Q.
[0027]
Since joints U having a slight gap are formed between the adjacent general floor panels 5A and the heel panels 5B, these joints U are sealed using an adhesive tape 61 and a patch belt 62. .
[0028]
The adhesive tape 61 is a synthetic paper or cloth tape provided with water resistance as typified by a craft tape. A kraft tape having a width of about twice the width of the joint U is stuck on the joint U so as to straddle the adjacent general part floor panel 5A and the heel panel 5B.
[0029]
The patch belt 62 is a belt-shaped member made of a resin such as soft vinyl chloride, and has a width wider than that of the adhesive tape 61. On the back surface of the patch belt 62, adhesive surfaces are formed on both side edges except for a central portion corresponding to the width of the adhesive tape 61. The patch belt 62 is adhered to the surfaces of the general floor panel 5A and the heel panel 5B adjacent to each other so that the non-adhesive surface of the central portion overlaps the adhesive tape 61.
[0030]
The adhesive tape 61 and the patch belt 62 are attached so as to continue from the surface of the water-resistant steel plate 2 to the upper part of the waterproof sheet 3 temporarily fixed along the waist wall Q. As a result, the joint U between the general part floor panel 5A and the heel panel 5B is sealed in a watertight manner, and even if the general part floor panel 5A and the heel panel 5B move horizontally with respect to each other, The displacement of the U interval can be absorbed.
[0031]
If the surface of the outer floor to the upper edge of the waist wall Q is water-tightly covered with the water-resistant steel plate 2, the waterproof sheet 3, and the patch belt 62, it is shown in FIG. 1 along the upper edge of the waist wall Q. The water draining member 4 is attached and screwed to the waist wall Q so as to hold the upper edge of the waterproof sheet 3. Finally, a sealing 41 is applied between the upper edge of the draining member 4 and the lower end of the exterior material or the opening frame R. Thus, the exterior material and the boundary portion between the opening frame R and the waist wall Q are also stopped.
[0032]
Thus, the waterproof panel (general part floor panel 5A, eaves panel 5B) formed by previously processing and bonding the heat insulating material 1, the water-resistant steel plate 2 and the waterproof sheet 3 into a predetermined shape is placed on the external floor. By fixing, the troublesome plastering work at the construction site and the attaching work of the waterproof sheet 3 become unnecessary, and the waterproof work of the external floor can be performed efficiently and accurately. Since the waterproof sheet 3 is made of a soft resin that can be easily bent, even if the waterproof sheet 3 is attached to the water-resistant steel plate 2 in advance, troubles in transportation and storage can be reduced.
[0033]
As shown in FIG. 5, the present invention, at a place where two waist walls Q (Q 1, Q 2) surrounding the external floor are continuous across the step surface q, at the entrance / exit corner formed by the step surface q, It is for efficiently and accurately constructing a waterproof structure continuous to the general part. Hereinafter, the embodiment will be described with reference to FIGS.
[0034]
The waterproof structure at the entrance / exit corner of the external floor includes an entrance / exit corner floor panel 5C (FIG. 7), which is a waterproof panel prepared in accordance with the shape of the entrance / exit corner, and a reinforcing member for reinforcing the entrance / exit corner floor panel 5C. 7 and an entry / exit corner waterproof panel unit 50 C (FIG. 8) composed of the reinforcing member 7.
[0035]
The entry / exit corner floor panel 5 C is similar to the general part floor panel 5 A disposed in the general part, the heat insulating material 1, the water-resistant steel plate 2 adhered to the surface of the heat insulating material 1, and the surface of the water-resistant steel plate 2. And is fixed on the external floor base P so as to extend along the corner of the entrance and exit. The materials for the heat insulating material 1, the water-resistant steel plate 2 and the waterproof sheet 3 are the same as described above.
[0036]
The heat insulating material 1 has a planar shape in which the three sides coincide with the stepped surface q at the entrance / exit corner and the two waist walls Q1, Q2 continuous on both sides thereof, diagonally from the entrance / exit corner side or any An appropriate drainage gradient is given toward the opposite direction. The heat insulating material 1 is bonded onto the external floor base P via an adhesive.
[0037]
The water-resistant steel plate 2 includes a flat portion 21 stuck on the heat insulating material 1 and a pair of rising portions 22 raised upward from two sides of the flat portion 21 on the waist wall Q1, Q2 side. . Since each of these rising portions 22 is formed by bending the flat water-resistant steel plate 2 obtained by obliquely cutting the ridge corner portion of the entrance / exit corner and the edge portion facing the corner portion, the portion facing the step surface q is formed. It becomes discontinuous. A plurality of screw holes 221 are provided in the vicinity of the upper edge of each rising portion 22 at intervals in the horizontal direction. By using this screw hole 221, each rising portion 22 is screwed into the waist walls Q1 and Q2, respectively. It has been stopped.
[0038]
The waterproof sheet 3 is attached along the rising portions 22 from the vicinity of the edge on the waist wall Q1, Q2 side of the flat portion 21 of the water-resistant steel plate 2, and extends above the upper edge of each rising portion 22. Yes. Accordingly, each of the waterproof sheets 3 also has a discontinuous portion facing the entrance / exit corner. Each waterproof sheet 3 has its lower edge bonded in advance only to the flat part 21 of the water-resistant steel plate 2 and the lower part of each rising part 22, and the rising part 22 is screwed to the waist walls Q1, Q2 by turning the upper part. Be able to. Each waterproof sheet 3 is cut according to the height of the waist walls Q1 and Q2 and extended upward to cover the rising portion 22 and the head of the screw which is screwed to the waist walls Q1 and Q2. ing.
[0039]
The reinforcing member 7 is a member formed by bending a resin-coated steel plate similar to the water-resistant steel plate 2, and is provided with three upright portions 71 that are bent and continuous along the entrance and exit corners, and under each upright portion 71. And a horizontal portion 72 extending horizontally from the edge. The reinforcing member 7 is welded so that the upright portions 71 on the two outer surfaces extend over both the rising portions 22 of the water-resistant steel plate 2 of the entry / exit corner floor panel 5C. As a result, the left and right rising portions 22 formed discontinuously are structurally connected along the entry / exit corners, and the upright state of each rising portion 22 is stably maintained and stress is concentrated around the entry / exit corners. In this case, the water-resistant steel plate 2 can be prevented from being deformed / damaged.
[0040]
The reinforcing member 7 only needs to have three upright portions 71 capable of connecting the left and right rising portions 22 along at least the corners of entry and exit, and the presence or absence of the horizontal portion 72 and the shape thereof are not particularly limited.
[0041]
The entrance / exit corner waterproofing member 8 includes an entrance / exit corner cover 81 which is integrally and three-dimensionally formed by injection molding a resin such as soft vinyl chloride, and a resin-coated steel plate attached to the back surface thereof. Member 82.
[0042]
The entrance / exit corner cover 81 includes a three-sided elevation part 811 formed along the entry / exit corner, and a bottom part 812 integrally continuous with the lower edge thereof, and each elevation part 811 and the bottom part 812. Are formed in a watertight manner without gaps. The upright surface portion 811 and the bottom surface portion 812 are formed in a size that covers the reinforcing member 7 and that the width of both outer edge portions spans the right and left waterproof sheets 3 of the floor panel for entry / exit corner 5C. . In addition, the height of the elevation portion 811 is formed to be approximately the same as the extension height of the waterproof sheet 3 of the entry / exit corner floor panel 5C.
[0043]
The mounting member 82 has three upright portions 821 that are bent and continuous along the entrance and exit corners, and screw holes 822 are provided in the vicinity of the outer edge of the upright portions 821 on the two outer sides. . In the mounting member 82, the central upright portion 811 and the vicinity of the edge of the upright portion 821 on the outer side near the center are bonded in advance to the back surface of the upright portion 811 of the entrance / exit corner cover 81. The mounting member 82 can be screwed to the waist walls Q1 and Q2 by turning the edges of the upright surface portions 811 of the two outer surfaces 81 toward the front. The attachment / detachment corner cover 81 is attracted to the entry / exit corner by screwing the attachment member 82 to the two waist walls Q1, Q2 sandwiching the entry / exit corner. When the rising surfaces 811 of the two outer surfaces of the entrance / exit corner cover 81 are extended, the attachment member 82 is covered behind the entrance / exit corner cover 81. The outer edge portions of the two outer surfaces 811 are respectively placed on the edge portions on the entry / exit corner sides of the waterproof sheets 3 extended on both sides of the entry / exit corners. Bonded to the water-resistant steel plate 2.
[0044]
In this way, the entrance / exit corner cover 81 formed integrally and watertightly is attached to a place where the heat-resistant steel plate 2 and the waterproof sheet 3 attached to the surface thereof are discontinuous across the entrance / exit corner. Thus, a waterproof surface without a gap is integrally formed, and the periphery of the entrance / exit corner is covered in a watertight manner. The entry / exit corner cover 81 is screwed to the waist walls Q1 and Q2 via a mounting member 82 attached to the back surface thereof, and is attached to the top of the waterproof sheet 3 via an adhesive applied to the edge of the back surface. Is securely held along the corner, and easy to attach. Moreover, the attachment state of each member around the entrance / exit corner is strengthened by the reinforcing member 7 that connects the two rising portions 22 of the water-resistant steel plate 2 and the attachment member 82 attached to the back of the entrance / exit corner cover 81.
[0045]
The entry / exit corner waterproof panel unit 50C of the present invention is a member in which the entry / exit corner floor panel 5C, the reinforcing member 7, and the entrance / exit corner waterproofing member 8 are integrally formed in advance in a factory or the like. The reinforcing member 7 is welded over the right and left rising portions 22 of the water-resistant steel plate 2. Further, the waterproof accessory 8 for the entrance / exit corner is adhered to the flat portion 21 of the water-resistant steel plate 2 and the edge on the entrance / exit corner side of the waterproof sheet 3 through an adhesive applied to the back surface of the entrance / exit corner cover 81. Yes.
[0046]
And by the construction method of carrying in the waterproof panel unit 50C for entrance / exit corner formed in advance in advance to the site and installing it at the entrance / exit corner of the external floor, reducing the mounting / sticking work between each member at the construction site, Workability can be improved. Even in this case, since the waterproof sheet 3 and the entrance / exit corner cover 81 are made of soft resin, they can be appropriately folded. Therefore, even if the attachment member 82 is stuck on the back surface of the entrance / exit corner cover 81 having a three-dimensional shape, troubles in terms of transportation and storage can be reduced.
[0047]
The waterproof construction method using the waterproof panel unit for entry / exit corner 50C is as follows.
[0048]
First, the waterproof panel unit 50C for entrance / exit is placed on the external floor base P along the entrance / exit corner. Adhere the heat insulating material 1 to the external floor base P via an adhesive, and turn the waterproof sheet 3 attached to the surface of the water-resistant steel plate 2 toward you to form two corners of the waist wall Q1, Q2 Each of the rising portions 22 of the water-resistant steel plate 2 is screwed.
[0049]
Next, the entrance / exit corner waterproofing member 8 is applied to the ridge corner and the corner of the entrance / exit corner, the edges of the two outer surfaces of the entrance / exit corner cover 81 are turned forward, and the attachment member 82 is attached to the waist wall. Screw on Q1 and Q2.
[0050]
And the rising surface part 811 of the outer two surfaces of the waterproof sheet 3 and the entrance / exit corner cover 81 is raised along the waist walls Q1 and Q2, and the upper edge part thereof is cut to align with the height of the waist walls Q1 and Q2. Then, temporarily fix each waist wall Q1, Q2 using an adhesive or a nail.
[0051]
As for the joint U of the entrance / exit corner waterproof panel unit 50C and the general part floor panel 5A and the heel panel 5B arranged in the general part, the joint U is used as described above, and the adhesive tape 61 and the patch belt 62 are used. Seal with.
[0052]
Finally, the draining member 4 is attached along the upper edges of the waist walls Q1 and Q2 and the stepped surface q, fixed so as to be continuous with the general part, and the sealing 41 is applied. At this time, a draining member for entry / exit corners (not shown) bent according to the shape of the entry / exit corner may be separately prepared and attached.
[0053]
【The invention's effect】
As described above, by using a waterproof panel unit for entrance / exit corners in which an entrance / exit corner cover formed integrally and watertight at discontinuous portions of the heat-resistant steel sheet and the waterproof sheet at the entrance / exit corner is attached in advance. The waterproof work at the entrance / exit corner of the external floor is done in the same way as the general part without requiring the troublesome work of processing the edge of the entrance / exit corner of the waterproof steel sheet or waterproof sheet to match the shape of the entry / exit corner. Can be done easily. Thus, the workability of the waterproof work is greatly improved, and stable construction accuracy is ensured.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an embodiment of a waterproof structure in a general part of an external floor.
FIG. 2 is a perspective view showing a configuration of a general floor panel used in the waterproof structure for the general part.
FIG. 3 is a perspective view showing a configuration of a gutter panel used for the waterproof structure of the general part.
FIG. 4 is a perspective view showing a construction state when waterproofing a general part using the floor panel and the eaves panel for the general part.
FIG. 5 is an exploded perspective view showing an embodiment of a waterproof structure at an entrance / exit corner of an external floor.
6 is a longitudinal sectional view of the waterproof structure of FIG. 5 in the vicinity of a ridge corner or a corner of a waist wall.
7 is a perspective view showing a configuration of an access corner floor panel used in the waterproof structure of FIG. 5. FIG.
FIG. 8 is a perspective view showing an embodiment of the waterproof panel unit for entry / exit corners of the present invention.
[Explanation of symbols]
P External floor base Q (Q1, Q2) Waist wall 1 Insulating material 2 Water-resistant steel plate 21 Flat part 22 Standing part 221 Standing part screw hole 3 Waterproof sheet 50C Entrance / exit corner waterproof panel unit 7 Reinforcing member 71 Upright part 81 Entrance / exit corner cover 811 Elevated surface portion 812 Bottom surface portion 82 Mounting member 821 Mounting member upright portion 822 Mounting member screw hole

Claims

A waterproof panel unit for entry / exit corners used for waterproofing in places where two waist walls provided around the outer floor are continuous across the entry / exit corners,
A heat insulating material formed so that three adjacent sides follow the planar shape of the entrance and exit corners;
It has a pair of rising portions raised from the outer two sides of the three sides of the flat portion and the flat portion adhered on the heat insulating material, and screw holes are provided in the vicinity of the upper edge of each rising portion. A water-resistant steel sheet formed with
A pair of soft resin waterproof sheets attached to the lower part of each rising part from the vicinity of each edge on the waist wall side of the flat part in this water-resistant steel sheet, and extended to the upper part of each rising part,
Reinforcing member having three upright portions that are bent so as to be along the entrance and exit corners, and fixed over both rising portions of the water-resistant steel plate,
It has three surface elevations and one bottom surface formed integrally and watertight so as to be along the entry / exit corner, and covers each edge on the entry / exit corner side of the pair of waterproof sheets and the reinforcing member. A soft resin entrance / exit corner cover,
It has three upright parts bent along the entrance and exit corners, screw holes are formed in the vicinity of the outer edges of the upright parts of the outer two faces, and the central upright part and the outer two faces An entry / exit corner waterproof panel unit, comprising: an attachment member formed by adhering a vicinity of an edge portion of the upright portion near the center to a back surface of an elevation portion of the entry / exit corner cover.

The waterproof panel unit for entry / exit corners according to claim 1 is disposed on the outer floor base of the entrance / exit corner, and the heat insulating material is fixed on the external floor base via an adhesive, and on the two waist walls forming the entrance / exit corner After fixing each rising part of the water-resistant steel plate with screws, the mounting member is fixed with screws to the corners of the waist wall, and then the rising surfaces of the waterproof sheet and the corner cover are extended along the waist walls, A waterproof construction method at an entrance / exit corner of an external floor characterized by water-tightly covering the periphery.