JP3907798B2 - Building ventilation structure - Google Patents

Building ventilation structure Download PDF

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Publication number
JP3907798B2
JP3907798B2 JP26116897A JP26116897A JP3907798B2 JP 3907798 B2 JP3907798 B2 JP 3907798B2 JP 26116897 A JP26116897 A JP 26116897A JP 26116897 A JP26116897 A JP 26116897A JP 3907798 B2 JP3907798 B2 JP 3907798B2
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Japan
Prior art keywords
ventilation
ridge
tile
roof
flat plate
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JPH11100963A (en
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忠勝 須賀
徳哉 佐藤
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Misawa Homes Co Ltd
Sahara KK
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Misawa Homes Co Ltd
Sahara KK
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Description

【0001】
【発明の属する技術分野】
この発明は、棟換気構造、更に詳しくは、一般家屋における屋根裏の空間の換気を棟部分に開口させた換気口を介して行うものであって、この換気口から風雨による雨水等の浸入を抑えることができる棟換気構造に関するものである。
【0002】
【先行技術】
一般家屋における内外の換気を図るため従来から各種の換気構造が提案されている。特に、屋根下の屋根裏空間におけるカビの発生防止、結露現象の解消、腐食防止、加熱防止等のために、湿気を含んだ空気や高温となった空気を屋外に速やかに排出できるようにした屋根裏の換気装置を、棟部分に設置した棟換気構造が提供されている。
【0003】
これらの技術を、日本特許情報機構(JAPIO)の先行技術調査(パトリス)の利用により、以下の検索式で昭和55年以後の特許出願、実用新案登録出願を調査した。
検索式 : E04D 13/16E
その結果、特許出願50余件、実用新案登録出願80余件を抽出した。その中で、実開平4−92929号や、実開平4−92930号等に記載された棟換気構造を説明する。これらは、特に図示しないが、共に、屋根部材の棟頂部に開口形成されている換気口と、この換気口の上方を覆う棟瓦と、その棟瓦の下方、且つ換気口の上方に位置して、換気口からの空気を棟瓦の側端に向かって換気可能な通路を有する棟瓦換気部とを備えているものである。この棟瓦換気部は、具体的には、棟瓦と換気口との間に挟み込まれた全体形状が略ハ字状の山形状に形成されている。そして、この棟瓦換気部は、棟瓦の側端から棟頂部に向かって換気通路が形成されており、その換気通路の途中には、風雨が直接、建物躯体の内部に入り込むことを抑えるために、空気の換気通路が直線状ではなく、ジグザグ状になるように複数の仕切りが設けられているものである。そして、換気通路は、換気口の上方の棟頂部にまで形成され、換気口と連通するように形成されている。
【0004】
【発明が解決しようとする課題】
しかし、上記した従来の棟換気構造において、棟瓦換気部の換気通路は、換気口の上方に位置する棟頂部まで形成されているが、激しい横風をともなう風雨により棟瓦側端からの空気が吹き込まれると、換気通路の内部に入り込んだ雨水が、換気通路内を伝わって、棟頂部付近まで、雨水が吹き込まれる場合があった。かかる場合、換気口上方の棟頂部に入り込んだ雨水は、そのまま、下方に落下して換気口から建物躯体の内部に入り込んでしまい、防水性を保持することができないという第一の問題点があった。
【0005】
また、換気口と棟瓦換気部との間の換気通路内であって、換気口の上面に、上方に向かって開口するとともに表裏に貫通するような多数の換気穴を有する換気口カバーを形成しても、その上方に向かって開口する換気穴から下方に向かって落下してきた雨水が直接、換気口の内部に入り込んでしまい、防水性を保持することができないという第二の問題点があった。
【0006】
さらに、換気口を覆うような換気口カバーを形成すると、屋根裏からの暖かい水蒸気を多量に含んだ空気が、冷たい換気口カバーに衝突することにより、その建物躯体側の表面に結露が生じ、かかる水滴が建物躯体に落下し、防水性を保持することができないという第三の問題点があった。
そこで、請求項1記載の発明は、上記した従来の技術の有する第一および第二の問題点に鑑みてなされたものであり、その目的とするところは、強風により棟瓦換気部の換気通路の内部に吹き込まれた雨水が、棟頂部の換気口の上部にまで入り込んでも、換気口から建物躯体の内部に浸入することを抑えることができる棟換気構造を提供しようとするものである。
【0007】
これに加え、更に請求項1記載の発明は、簡単な構造であって、換気口の上方の棟頂部にまで吹き込まれた雨水が、換気口から建物躯体の内部に浸入することを抑えることができる棟換気構造を提供しようとするものである。
【0008】
又、これに加え、請求項1記載の発明は、平板部材の上面に水滴が付着しても、かかる水滴が換気口から建物躯体の内部に浸入することを抑えることができる棟換気構造を提供しようとするものである。
更にこれに加え、請求項1記載の発明は、平板部材の上面に水滴が付着しても、かかる水滴が平板部材の上面から換気口の裏面側に回り込むことを抑えることができる棟換気構造を提供しようとするものである。
そして、これに加え、請求項2記載の発明は、上記した従来の技術の有する第三の問題点に鑑みてなされたものであり、その目的とするところは、換気口の上方において、結露の発生を抑えることができる棟換気構造を提供しようとするものである。
【0009】
なお、上記の課題を解決する技術を、前述した日本特許情報機構(JAPIO)の先行技術調査(パトリス)の利用により、調査した結果、この先行技術調査によっては、本願発明と同一の技術は発見できなかった。
【0010】
【課題を解決するための手段】
本発明は、上記した目的を達成するためのものである。
請求項1記載の発明は、屋根部材(20)の棟頂部に開口形成されている換気口(10)と、この換気口(10)の上方を覆う棟瓦(30)と、その棟瓦(30)の下方、且つ換気口(10)の上方に位置して、換気口(10)からの空気を棟瓦(30)の側端に向かって換気可能な換気通路(47)を有する棟瓦換気部(40)とを備えた棟換気構造において、棟瓦(30)を支える横部材(81)に中央部材(41)が支持されると共に屋根部材(20)の上に載置固定された平瓦(31)に接する端部下側部材(42)と棟瓦(30)に接する端部上側部材(43)を備える棟瓦換気部(40)を有し、この棟瓦換気部(40)と換気口(10)との間に、換気口(10)の上方からの水の浸入を抑えるために換気口(10)の上方を覆う換気口カバー(50)を形成したことを特徴とする。
【0011】
なお、ここで、「換気口カバー(50)」とは、換気口(10)と棟瓦換気部(40)との間は連通した状態であって、換気口(10)から棟瓦換気部(40)に向かって換気可能に形成されているが、換気口(10)の上方から落下してきた水滴が換気口(10)の内部に入り込まないように換気口(10)の上方を覆うようなものであれば良いものである。例えば、換気口(10)の上方に平板状や、半円筒状の長尺部材により覆って、その下面側に空気が行き来可能な連通口を有するもの等を含むものである。したがって、「換気口カバー(50)」は、平板状や、半円筒状であるが、その表面に多数の上方に向かって開口する表裏に貫通する穴を有するようなものは含まれないものである。
【0012】
本発明は、棟瓦換気部(40)と換気口(10)との間に、換気口(10)の上方からの水の浸入を抑えるために換気口(10)の上方を覆う換気口カバー(50)を形成している。このため、激しい風雨により棟瓦(30)の側端から雨水を伴う空気が棟瓦換気部(40)の内部に吹き込まれて、換気通路(47)の内部に雨水が入り込んで、風雨とともに換気口(10)の上方の棟頂部付近から換気口(10)に向かって下方に落下してきても、雨水は、この換気口(10)の上方を覆う換気口カバー(50)に付着してしまう。これにより、棟瓦換気部(40)の内部に入り込んだ雨水が、直接、換気口(10)の内部に入り込むことを抑えることができ、建物躯体への防水性を保持することができる。
【0013】
そして請求項1記載の発明は、更に前記換気口カバー(50)は、換気口(10)の左右の屋根部材(20)の表面から棟側にそれぞれ延びて換気口(10)の一部を覆う一対の平板部材(60)と、この一対の平板部材(60)間の上方を覆うカバー本体部材(70)とを備え、このカバー本体部材(70)を棟瓦換気部(40)の中央部材(41)の下方に位置させ、換気口(10)からの空気を一対の平板部材 (60) の間及び平板部材(60)とカバー本体部材(70)との間の長手方向に沿う側方から換気可能に形成されていることを特徴とする。
【0014】
なお、ここで、「カバー本体部材(70)」は、一対の平板部材(60)間の上方を覆い、上方から水滴等が直接、換気口(10)の内部に入り込まないように形成されるとともに、カバー本体部材(70)と平板部材(60)との間の長手方向に沿う側方から換気可能に形成されているものであれば良いものである。したがって、「カバー本体部材(70)」の縦断面形状は、平板部材(60)との間に隙間を形成するとともに、一対の平板部材(60)の間を覆って上方に向かって突出するようなもの、または平板状のもの等であれば良く、例えば、断面コ字状、断面山形状、断面半円状または断面台形状等の形状のものが含まれる。
【0015】
本発明は、換気口カバー(50)が、換気口(10)の左右の屋根部材(20)の表面から棟側にそれぞれ延びて換気口(10)の一部を覆う一対の平板部材(60)と、この一対の平板部材(60)間の上方を覆うカバー本体部材(70)とから形成されている。このため、激しい風雨により棟瓦換気部(40)の内部にまで、雨水を伴う空気が入り込んで、風雨とともに換気口(10)の上方の棟頂部付近から換気口(10)に向かって下方に落下してきても、雨水は、この平板部材(60)か、または、この一対の平板部材(60)間の上方に形成されたカバー本体部材(70)の上面に付着する。これにより、棟瓦換気部(40)の内部に入り込んだ雨水が、直接、換気口(10)を介して、建物躯体(83)の内部に入り込むことを抑えることができ、建物躯体(83)の防水性を保持することができる。
【0016】
また、屋根裏の空気を換気する場合には、先ず、換気口(10)からの空気が一対の平板部材(60)の間からカバー本体部材(70)側に向かって進む。その後、換気口カバー(50)の長手方向に沿う側方であって、平板部材(60)とカバー本体部材(70)との間の隙間から換気口(10)からの空気が排出される。そして、排出された空気は、棟瓦換気部(40)の換気通路(47)を通って、棟瓦(30)の側端から外部に排出される。これにより、防水性を担保した状態で、屋根裏の空気を換気口(10)を介して外部に換気することができる。
【0017】
又、請求項1記載の発明は、上記した請求項1記載の特徴点に加え、平板部材(60)は、その棟側に位置して屋根部材(20)の傾斜よりも棟側に向かって急勾配に上り傾斜となる傾斜面(62)を備えたことを特徴とする。本発明において、平板部材(60)は、その棟側に位置して屋根部材(20)の傾斜よりも棟側に向かって急勾配に上り傾斜となる傾斜面(62)を備えている。このため、激しい風雨により棟瓦換気部(40)の内部の換気通路(47)を通って入り込んだ水滴等が、平板部材(60)の上面に、落下してきて付着しても、棟側に向かって急勾配に上り傾斜となっている傾斜面(62)を上ることはなく、換気口(10)とは反対側の軒側に向かって流れ落ちることとなる。これにより、平板部材(60)の表面に付着した水滴が、換気口(10)から建物躯体(83)の内部に入り込むことを抑えることができ、建物躯体(83)の防水性を保持することができる。
【0018】
そして請求項1記載の発明は、上記した請求項1記載の特徴点に加え、平板部材(60)の棟側の先端には、棟瓦(30)側に向かって折り返された折り返し部(63)を備えたことを特徴とする。
本発明は、平板部材(60)の棟側の先端には、棟瓦(30)側に向かって折り返された折り返し部(63)を備えている。このため、激しい風雨により棟瓦換気部(40)の内部の換気通路(47)を通って入り込んだ水滴が、平板部材(60)の上面に、落下してきて付着し、更に、強風等により、傾斜面(62)を上方に向かって伝わってきても、この折り返し部(63)の先端により、再度、平板部材(60)の表面に落下させることができる。これにより、平板部材(60)の表面を伝わる水滴が、換気口(10)の内部に入り込むことを抑えることができ、建物躯体(83)の防水性を保持することができる。
【0019】
請求項2記載の発明は、上記した請求項1記載の特徴点に加え、平板部材 (60) の換気口 (10) に面する表面には、断熱部材 (61) が形成されていることを特徴とする。
なお、ここで、「断熱部材 (61) 」とは、建物外部の気温と同程度の状態で、水蒸気を多量に含んだ暖かい空気が直接、衝突しても、表面に結露が生じないような低い熱伝導率を有する材質のものであれば良いものである。例えば、発泡スチロールや、種々のセラミック材や、薄板木片や、樹脂や、ロックウールや、石綿等を含むものである。
【0020】
本発明は、平板部材 (60) の換気口 (10) に面する表面には、断熱部材 (61) が形成されている。このため、屋根裏の水蒸気を多量に含んだ暖かい空気が、換気口 (10) を介して、外部の気温に近い温度となる平板部材 (60) に直接、衝突しない。これにより、平板部材 (60) の換気口 (10) に面する表面に結露が発生することを抑えることができ、この結露による水滴が換気口 (10) に落下したり、建物躯体 (83) の内部に浸入することを抑えることができ、建物躯体 (83) の防水性を担保することができる。
【0021】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて、更に詳しく説明する。
図1乃至図4は、本発明の実施の形態を示すものであり、図1は棟換気構造の縦断面図、図2は棟瓦換気部の縦断面図、図3は換気口カバーの外観斜視図、図4は平板部材の縦断面図をそれぞれ示す。
【0022】
まず、本実施の形態の構成について説明する。
本実施の形態に係る棟換気構造は、屋根部材20の棟頂部に開口形成されている換気口10と、この換気口10の上方を覆う棟瓦30と、その棟瓦30の下方、且つ換気口10の上方に位置して、換気口10からの空気を棟瓦30の側端に向かって換気可能な換気通路47を有する全体形状が略山形状の棟瓦換気部40とを備えている。
【0023】
前記屋根部材20は、木質からなり表面に防水合板を有する屋根パネル80から形成されている。この屋根パネル80の棟側の合わせ目に相当する部分に、隙間が形成され、屋根裏の空気を換気するための換気口10として使用されている。そして、屋根部材20の表面の防水合板の表面には、特に図示しないが、屋根耐水シートが全面に渡って貼付されている。そして、その表面には、特に図示しないが木質の長尺材からなる瓦桟21が多数、形成され、その瓦桟21の上には平瓦31が載置されて固定されている。そして、換気口10の上方に位置して、棟側の左右の平瓦31の間には、縦断面形状が方形状で木質からなる長尺状の横部材81が形成されており、この横部材81は、その下面を支持する金物からなる横部材支持具82により建物躯体83に固定されている。
【0024】
前記棟瓦30は、全体形状が略山型状であって、棟の頂部の最上部に位置して、左右の平瓦31に渡されて棟頂部を覆うように形成されている。そして、この棟瓦30の側端と平瓦31の表面との間に隙間が形成されており、この隙間から換気口10の空気が外部に換気できるように形成されているものである。
前記棟瓦換気部40は、上方に向かって台形状に突出する長尺状の塩ビ鋼板からなる中央部材41と、この中央部材41の長手方向に沿う両側端に位置する長尺状の塩ビ鋼板からなる端部上側部材43と、この端部上側部材43の端部に係合するとともに端部上側部材43の下側に位置する長尺状の塩ビ鋼板からなる端部下側部材42とを備えている。そして、これらの中央部材41、端部上側部材43及び端部下側部材42は、それらの間に挟み込まれるとともに長手方向の途中に所定間隔で配置されたステンレス製の短尺状の複数個の固定具45により一体となって結合して、棟瓦換気部40として形成されているものである。なお、特に図示していないが、固定具45と、中央部材41、端部下側部材42及び端部上側部材43との固定は、アルミニウムからなるリベットにより固定されているものである。そして、中央部材41の側端と、端部上側部材43との間には、隙間を開けて棟瓦換気部40の上面側に向かって開口する上面端部側開口部44を形成している。また、中央部材41の側端の下面側と、端部下側部材42の換気口10側の端部との間には、隙間を開けて棟瓦換気部40の下面側に開口する下面側開口部46を形成している。そして、この下面側開口部46と上面端部側開口部44との間は、連通しており、その内部を空気が移動可能な換気通路47を形成している。
【0025】
また、端部下側部材42の下面には、弾性変形可能なスポンジ状の発泡体からなる防水部材48が棟の長手方向に沿って形成されている。この防水部材48は、平瓦31の上面に凹凸が形成されているような場合においても、平瓦31の上面と端部下側部材42の下面との間に隙間が形成されないように平瓦31と端部下側部材42との密着性を向上させるために形成されているものである。
【0026】
さらに、端部下側部材42の軒側端部には、所定の間隔で長手方向に沿って配置された表裏に貫通する水抜き穴49が形成されている。これは、中央部材41や、端部上側部材43や端部下側部材42の表面に結露等により形成された水滴が、この水抜き穴49を通って平瓦31の上面に落下して、棟瓦換気部40の内部に水滴が溜まらないように形成されているものである。
【0027】
前記棟瓦換気部40と換気口10との間には、換気口10の上方からの水の浸入を抑えるために換気口10の上方を覆う換気口カバー50が形成されている。
この換気口カバー50は、具体的には、換気口10の左右の屋根部材20の表面から棟側にそれぞれ延びて換気口10の一部を覆う一対の平板部材60と、この一対の平板部材60間の上方を覆うとともに横部材81の下面に位置するカバー本体部材70とを備えている。そして、この換気口カバー50は、換気口10からの空気を平板部材60とカバー本体部材70との間の長手方向に沿う側方から換気可能に形成されている。
【0028】
前記平板部材60の換気口10に面する表面には、長尺薄板状の発泡スチロールからなる断熱部材61が形成されている。そして、平板部材60は、その棟側に位置して屋根部材20の傾斜よりも棟側に向かって急勾配に上り傾斜となる傾斜面62と、この傾斜面62の棟側の先端側に位置して、棟瓦30側に向かって折り返された折り返し部63とを備えている。
【0029】
次に、上記した実施の形態の作用及び効果について説明する。
本実施の形態は、棟瓦換気部40と換気口10との間に、換気口10の上方からの水の浸入を抑えるために換気口10の上方を覆う換気口カバー50を形成している。このため、激しい風雨により棟瓦30の側端から雨水を伴う空気が棟瓦換気部40の内部に吹き込まれて、換気通路47の内部に雨水が入り込んで、風雨とともに換気口10の上方の棟頂部付近から換気口10に向かって下方に落下してきても、雨水は、この換気口10の上方を覆う換気口カバー50に付着してしまう。
【0030】
すなわち、更に具体的に説明すると、激しい風雨により棟瓦換気部40の内部にまで、雨水を伴う空気が入り込んで、風雨とともに換気口10の上方の棟頂部付近から換気口10に向かって下方に落下してきても、雨水は、この平板部材60か、または、この一対の平板部材60間の上方に形成されたカバー本体部材70の上面に付着する。そして、平板部材60の上面に付着した水滴は、屋根部材20の傾斜に沿って軒側に向かって流れ落ちる。また、カバー本体部材70の上面に付着した水滴は、そのまま蒸発するか、或いは、カバー本体部材70の両端から下方に落下して、平板部材60の上面に落下し、同様に、平板部材60の上面を軒側に向かって流れ落ちる。これにより、棟瓦換気部40の内部に入り込んだ雨水が、直接、換気口10を介して、建物躯体83の内部に入り込むことを抑えることができ、建物躯体83の防水性を保持することができる。
【0031】
また、換気口カバー50は、屋根裏の空気を換気する場合には、換気口10からの空気が一対の平板部材60の間からカバー本体部材70側に向かって進み、その後、換気口カバー50の長手方向に沿う側方であって、平板部材60とカバー本体部材70との間から換気口10からの空気を排出することができる。そして、排出された空気は、棟瓦換気部40の換気通路47を通って、棟瓦30の側端から外部に排出される。これにより、防水性を担保した状態で、屋根裏の空気を換気口10を介して外部に換気することができる。
【0032】
また、本実施の形態において、平板部材60の換気口10に面する表面には、断熱部材61が形成されている。このため、屋根裏の水蒸気を多量に含んだ暖かい空気が、換気口10を介して、外部の気温に近い温度となる平板部材60に直接、衝突しない。これにより、平板部材60の換気口10に面する表面に結露が発生することを抑えることができ、この結露による水滴が換気口10に落下したり、建物躯体83の内部に浸入することを抑えることができ、建物躯体83の防水性を担保することができる。
【0033】
さらに、本実施の形態において、平板部材60は、その棟側に位置して屋根部材20の傾斜よりも棟側に向かって急勾配に上り傾斜となる傾斜面62を備えている。このため、激しい風雨により棟瓦換気部40の内部の換気通路47を通って入り込んだ水滴等が、平板部材60の上面に、落下してきて付着しても、棟側に向かって急勾配に上り傾斜となっている傾斜面62を上ることはなく、換気口10とは反対側の軒側に向かって流れ落ちることとなる。これにより、平板部材60の表面に付着した水滴が、換気口10から建物躯体83の内部に入り込むことを抑えることができ、建物躯体83の防水性を保持することができる。
【0034】
そして、これに加えて、平板部材60の棟側の先端には、棟瓦30側に向かって折り返された折り返し部63を備えている。このため、激しい風雨により棟瓦換気部40の内部の換気通路47を通って入り込んだ水滴が、平板部材60の上面に、落下してきて付着し、更に、強風等により、傾斜面62を上方に向かって伝わってきても、この折り返し部63の先端により、再度、平板部材60の表面に落下させることができる。これにより、平板部材60の表面を伝わる水滴が、換気口10の内部に入り込むことを抑えることができ、建物躯体83の防水性を保持することができる。
【0035】
そして、本実施の形態に係る棟瓦換気部40の端部下側部材42の下面には、弾性スポンジ状の発泡体からなる防水部材48が形成されている。このため、平瓦31の上面に凹凸が形成されていても、端部下側部材42の下面と平瓦31の上面との間を隙間なく密着させることができる。これにより、棟瓦換気部40の下面と平瓦31の上面との間から建物躯体83の内部に雨水が入り込むことを抑えることができ、建物躯体83の防水性を担保することができる。
【0036】
さらに、棟瓦換気部40の端部下側部材42の側端には、表裏に貫通する水抜き穴49が形成されているため、端部下側部材42や端部上側部材43等の表面に結露による水滴が付着しても、この水抜き穴49から平瓦31の上面に落下させることができる。これにより、かかる結露による水滴が棟瓦換気部40の内部に溜まることを抑えることができ、建物躯体83の防水性を担保することができる。
【0037】
【発明の効果】
本発明は、以上のように構成されているので、以下に記載されるような効果を奏する。
請求項1記載の発明によれば、強風により棟瓦換気部の換気通路の内部に吹き込まれた雨水が、棟頂部の換気口の上部にまで入り込んでも、換気口から建物躯体の内部に浸入することを抑えることができる棟換気構造を提供することができる。
【0038】
そして請求項1記載の発明によれば、簡単な構造であって、換気口の上方の棟頂部にまで吹き込まれた雨水が、換気口から建物躯体の内部に浸入することを抑えることができる棟換気構造を提供することができる。
【0039】
又、請求項1記載の発明によれば、平板部材の上面に水滴が付着しても、かかる水滴が換気口から建物躯体の内部に浸入することを抑えることができる棟換気構造を提供することができる。
更に請求項1記載の発明によれば、平板部材の上面に水滴が付着しても、かかる水滴が平板部材の上面から換気口の裏面側に回り込むことを抑えることができる棟換気構造を提供することができる。
そして、請求項2記載の発明によれば、換気口の上方において、結露の発生を抑えることができる棟換気構造を提供することができる。
【図面の簡単な説明】
【図1】 本発明の実施の形態であって、棟換気構造を示す縦断面図である。
【図2】 本発明の実施の形態であって、棟瓦換気部を示す縦断面図である。
【図3】 本発明の実施の形態であって、換気口カバーを示す外観斜視図である。
【図4】 本発明の実施の形態であって、平板部材を示す縦断面図である。
【符号の説明】
10 換気口 20 屋根部材
21 瓦桟 30 棟瓦
31 平瓦 40 棟瓦換気部
41 中央部材 42 端部下側部材
43 端部上側部材 44 上面端部側開口部
45 固定具 46 下面側開口部
47 換気通路 48 防水部材
49 水抜き穴 50 換気口カバー
60 平板部材 61 断熱部材
62 傾斜面 63 折り返し部
70 カバー本体部材 80 屋根パネル
81 横部材 82 横部材支持具
83 建物躯体
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a building ventilation structure, and more specifically, ventilation of an attic space in a general house is performed through a ventilation opening opened in the building part, and the entry of rainwater and the like due to wind and rain is suppressed from this ventilation opening. It is related to the building ventilation structure.
[0002]
[Prior art]
Conventionally, various ventilation structures have been proposed for ventilation inside and outside a general house. In particular, the attic is designed to quickly release moisture-containing air or hot air to prevent mold from forming in the attic space under the roof, eliminating condensation, preventing corrosion, and preventing heat. The building ventilation structure which installed the ventilation device of the building in the building part is provided.
[0003]
By using the prior art search (Patris) of the Japan Patent Information Organization (JAPI) for these technologies, patent applications and utility model registration applications after 1980 were searched using the following search formula.
Search formula: E04D 13 / 16E
As a result, more than 50 patent applications and more than 80 utility model registration applications were extracted. Among them, the building ventilation structure described in Japanese Utility Model Laid-Open No. 4-92929, Japanese Utility Model Laid-Open No. 4-92930, etc. will be described. These are not particularly shown, but both are located at the top of the roof of the roof of the roof, the roof tile covering the top of the ventilation opening, below the roof tile and above the ventilation opening, And a roof tile ventilation section having a passage through which air from the ventilation port can be ventilated toward the side edge of the roof tile. Specifically, the overall shape of the ridge tile ventilation portion sandwiched between the ridge tile and the ventilation opening is formed into a substantially C-shaped mountain shape. And in this ridge tile ventilation part, a ventilation passage is formed from the side edge of the ridge tile toward the ridge top, and in the middle of the ventilation passage, in order to prevent wind and rain from directly entering the inside of the building frame, A plurality of partitions are provided so that the air ventilation passage is not linear but zigzag. The ventilation passage is formed up to the top of the ridge above the ventilation opening and is formed so as to communicate with the ventilation opening.
[0004]
[Problems to be solved by the invention]
However, in the conventional ridge ventilation structure described above, the ventilation passage of the ridge tile ventilation section is formed up to the top of the ridge located above the ventilation opening, but air from the side of the ridge tile is blown by wind and rain with intense crosswinds. In some cases, rainwater that entered the inside of the ventilation passage was transmitted through the ventilation passage to the vicinity of the top of the building. In such a case, the rainwater that has entered the top of the building above the ventilation port falls down as it is and enters the inside of the building frame from the ventilation port, and the first problem is that waterproofness cannot be maintained. It was.
[0005]
Also, a ventilation port cover is formed in the ventilation passage between the ventilation port and the roof tile ventilation part, and has a number of ventilation holes that open upward and penetrate through the front and back surfaces of the ventilation port. However, there is a second problem that rainwater that has fallen downward from the ventilation hole that opens upward directly enters the inside of the ventilation opening and cannot maintain waterproofness. .
[0006]
In addition, when a vent cover that covers the vent is formed, air containing a large amount of warm water vapor from the attic collides with the cold vent cover, causing condensation on the surface of the building housing. There was a third problem that water droplets fell on the building frame and could not maintain waterproofness.
Accordingly, the invention described in claim 1 has been made in view of the first and second problems of the prior art described above, and the object of the invention is to provide a ventilation passage of the ridge tile ventilation section by strong wind. An object of the present invention is to provide a building ventilation structure in which rainwater blown into the interior can be prevented from entering the inside of the building frame from the ventilation opening even if it enters the upper part of the ventilation opening at the top of the building.
[0007]
In addition to this, the invention according to claim 1 has a simple structure, and can prevent rainwater blown to the top of the ridge above the ventilation opening from entering the inside of the building frame from the ventilation opening. It is intended to provide a building ventilation structure that can .
[0008]
In addition to this, the invention according to claim 1 provides a building ventilation structure that can prevent the water droplets from entering the inside of the building frame from the ventilation opening even if water droplets adhere to the upper surface of the flat plate member. It is something to try.
In addition to this, the invention according to claim 1 is a ridge ventilation structure that can prevent the water droplets from flowing from the upper surface of the flat plate member to the back surface side of the ventilation port even if water droplets adhere to the upper surface of the flat plate member. It is something to be offered.
In addition to this, the invention described in claim 2 has been made in view of the third problem of the above-described conventional technology, and the object is to form dew condensation above the ventilation port. The building ventilation structure which can suppress generation | occurrence | production can be provided.
[0009]
In addition, as a result of investigating the technology for solving the above problems by using the prior art search (Patris) of the above-mentioned Japan Patent Information Organization (JAPIO), the same technology as the present invention was discovered by this prior art search. could not.
[0010]
[Means for Solving the Problems]
The present invention is for achieving the above-described object.
The invention according to claim 1 includes a ventilation opening (10) formed at the top of the roof of the roof member (20), a roof tile (30) covering the top of the ventilation opening (10), and the roof tile (30). And a roof tile ventilation section (40) having a ventilation passage (47) through which air from the ventilation opening (10) can be ventilated toward the side edge of the roof tile (30). ) With a flat roof tile (31) supported on the roof member (20) while the central member (41) is supported by the transverse member (81) that supports the roof tile (30) A roof tile ventilation section (40) having an end lower member (42) in contact with the roof and an upper end member (43) in contact with the roof tile (30), and the roof tile ventilation section (40) and the ventilation opening (10) A ventilation port cover (50) covering the upper side of the ventilation port (10) is formed in order to prevent water from entering from above the ventilation port (10).
[0011]
Here, the “ventilation cover (50)” means that the ventilation opening (10) and the ridge roof ventilation section (40) communicate with each other, and the ventilation opening (10) to the ridge roof ventilation section (40 ), But covers the top of the vent (10) so that water drops that fall from above the vent (10) do not enter the vent (10). If it is good. For example, it includes a plate or a semi-cylindrical long member that is covered above the ventilation port (10) and has a communication port through which air can come and go on the lower surface side. Therefore, the “ventilation cover (50)” has a flat plate shape or a semi-cylindrical shape, but does not include one having a large number of holes penetrating the front and back that open upward on the surface. is there.
[0012]
The present invention provides a ventilation port cover that covers the top of the ventilation port (10) between the building tile ventilation unit (40) and the ventilation port (10) in order to prevent water from entering from above the ventilation port (10). 50). For this reason, air with rainwater is blown into the inside of the roof tile ventilation section (40) from the side edge of the roof tile (30) due to heavy wind and rain, and rainwater enters the inside of the ventilation passage (47), and the ventilation opening ( Even if it falls downward from near the top of the ridge above 10) toward the ventilation port (10), rainwater adheres to the ventilation port cover (50) covering the upper side of this ventilation port (10). Thereby, it is possible to prevent rainwater that has entered the inside of the building tile ventilation section (40) from directly entering the inside of the ventilation opening (10), and to maintain waterproofness to the building frame.
[0013]
In the first aspect of the present invention, the vent cover (50) further extends from the surface of the left and right roof members (20) of the vent (10) to the ridge side, and a part of the vent (10) is formed. A pair of flat plate members (60) for covering and a cover main body member (70) for covering the upper part between the pair of flat plate members (60) are provided. The cover main body member (70) is a central member of the roof tile ventilation section (40). Positioned below (41), the air from the ventilation port (10) is sideways along the longitudinal direction between the pair of flat plate members (60) and between the flat plate member (60) and the cover body member (70). It is formed so that it can be ventilated.
[0014]
Here, the “cover body member (70)” covers the upper part between the pair of flat plate members (60), and is formed so that water droplets or the like do not directly enter the inside of the ventilation opening (10) from above. At the same time, any material that can be ventilated from the side along the longitudinal direction between the cover body member (70) and the flat plate member (60) may be used. Therefore, the longitudinal cross-sectional shape of the “cover body member (70)” forms a gap between the flat plate member (60) and covers the space between the pair of flat plate members (60) so as to protrude upward. Or a flat plate-like shape, for example, a U-shaped cross-sectional shape, a cross-sectional mountain shape, a semi-circular cross-sectional shape or a trapezoidal cross-sectional shape is included.
[0015]
The present invention relates to a pair of flat plate members (60) in which a ventilation port cover (50) extends from the surface of the left and right roof members (20) of the ventilation port (10) to the ridge side and covers a part of the ventilation port (10). ) And a cover main body member (70) covering the upper part between the pair of flat plate members (60). For this reason, air with rainwater enters the building tile ventilation section (40) due to severe wind and rain, and falls downward from the vicinity of the top of the building above the ventilation opening (10) toward the ventilation opening (10) along with the wind and rain. Even then, rainwater adheres to the upper surface of the flat plate member (60) or the cover body member (70) formed above the pair of flat plate members (60). As a result, it is possible to prevent rainwater that has entered the inside of the roof tile ventilation section (40) from directly entering the inside of the building frame (83) through the ventilation opening (10). Waterproofness can be maintained.
[0016]
When ventilating the air in the attic, first, the air from the vent (10) advances from between the pair of flat plate members (60) toward the cover body member (70). Thereafter, air from the ventilation port (10) is discharged from the side of the ventilation port cover (50) along the longitudinal direction between the flat plate member (60) and the cover body member (70). And the discharged | emitted air passes along the ventilation channel | path (47) of a ridge tile ventilation part (40), and is discharged | emitted outside from the side end of a ridge tile (30). Thereby, the air in the attic can be ventilated to the outside through the ventilation port (10) in a state in which waterproofness is ensured.
[0017]
In addition to the above-described feature of the first aspect, the invention described in claim 1 is such that the flat plate member (60) is located on the ridge side and is directed toward the ridge side rather than the slope of the roof member (20). It is provided with an inclined surface (62) that is steeply inclined upward. In the present invention, the flat plate member (60) is provided with an inclined surface (62) that is located on the ridge side and has a steep upward slope toward the ridge side rather than the inclination of the roof member (20). For this reason, even if water drops or the like that have entered through the ventilation passage (47) inside the roof tile ventilation section (40) due to heavy wind and rain fall on the upper surface of the flat plate member (60) and adhere to it, they will head toward the building. Therefore, it does not go up the inclined surface (62) that is steeply rising and flows down toward the eave side opposite to the ventilation port (10). Thereby, water droplets adhering to the surface of the flat plate member (60) can be prevented from entering the inside of the building frame (83) from the ventilation opening (10), and the waterproofing property of the building frame (83) can be maintained. Can do.
[0018]
The invention of claim 1, wherein, in addition to the feature point according to claim 1, wherein the above, the ridge of the side tip of the flat plate member (60), folded portion folded back toward the Munagawara (30) side (63) It is provided with.
The present invention includes a folded portion (63) folded toward the ridge tile (30) side at the ridge side tip of the flat plate member (60). For this reason, water droplets that entered through the ventilation passage (47) inside the roof tile ventilation section (40) due to heavy wind and rain fall and adhere to the upper surface of the flat plate member (60), and further, the wind is inclined due to strong winds, etc. Even if the surface (62) travels upward, it can be dropped again onto the surface of the flat plate member (60) by the tip of the folded portion (63). Thereby, it is possible to prevent water droplets transmitted on the surface of the flat plate member (60) from entering the inside of the ventilation opening (10), and the waterproofness of the building frame (83) can be maintained.
[0019]
The invention described in claim 2 is characterized in that, in addition to the feature described in claim 1 , the heat insulating member (61) is formed on the surface of the flat plate member (60) facing the ventilation port (10). Features.
Here, the “heat insulating member (61) ” means that the surface does not form condensation even when warm air containing a large amount of water vapor collides directly with the air temperature outside the building. Any material having a low thermal conductivity may be used. For example, it includes foamed polystyrene, various ceramic materials, thin wooden pieces, resin, rock wool, asbestos and the like.
[0020]
In the present invention , a heat insulating member (61) is formed on the surface of the flat plate member (60) facing the ventilation port (10) . For this reason, warm air containing a large amount of water vapor in the attic does not directly collide with the flat plate member (60) having a temperature close to the outside temperature via the ventilation port (10) . As a result, it is possible to suppress the occurrence of condensation on the surface of the flat plate member (60) facing the ventilation port (10), and water droplets due to this condensation can drop into the ventilation port (10) or the building frame (83) Intrusion into the interior of the building can be suppressed, and the waterproofness of the building frame (83) can be ensured.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings.
1 to 4 show an embodiment of the present invention. FIG. 1 is a longitudinal sectional view of a ridge ventilation structure, FIG. 2 is a longitudinal sectional view of a ridge roof ventilation section, and FIG. 3 is an external perspective view of a ventilation port cover. 4 and 4 show longitudinal sectional views of the flat plate member.
[0022]
First, the configuration of the present embodiment will be described.
The ridge ventilation structure according to the present embodiment includes a ventilation opening 10 formed in the top of the ridge of the roof member 20, a ridge tile 30 covering the upper side of the ventilation opening 10, a lower side of the ridge tile 30, and a ventilation opening 10 And a roof tile ventilation section 40 having a substantially mountain shape as a whole having a ventilation passage 47 through which air from the ventilation port 10 can be ventilated toward the side end of the roof tile 30.
[0023]
The roof member 20 is formed of a roof panel 80 made of wood and having a waterproof plywood on the surface. A gap is formed at a portion corresponding to the joint on the ridge side of the roof panel 80, and the roof panel 80 is used as a vent 10 for ventilating the air in the attic. A roof waterproof sheet is applied to the entire surface of the waterproof plywood on the surface of the roof member 20, although not shown. A large number of tile bars 21 made of a long wooden material (not shown) are formed on the surface, and flat tiles 31 are placed and fixed on the tile bars 21. A long horizontal member 81 is formed between the left and right flat roof tiles 31 on the ridge side, which is located above the ventilation opening 10 and is made of wood with a rectangular vertical cross-sectional shape. The member 81 is fixed to the building frame 83 by a horizontal member support 82 made of a hardware that supports the lower surface thereof.
[0024]
The entire roof tile 30 has a substantially mountain shape, is located at the top of the top of the tower, and is formed so as to be passed to the left and right flat roof tiles 31 to cover the top of the tower. A gap is formed between the side edge of the ridge tile 30 and the surface of the flat tile 31, and the air in the ventilation port 10 can be vented to the outside through this gap.
The roof tile ventilation section 40 is composed of a central member 41 made of a long PVC steel plate protruding upward in a trapezoidal shape, and a long PVC steel plate located at both side ends along the longitudinal direction of the central member 41. An end upper member 43, and an end lower member 42 made of a long PVC steel plate that engages with the end of the end upper member 43 and is located below the end upper member 43. Yes. The central member 41, the end upper member 43, and the end lower member 42 are sandwiched between them, and a plurality of short fasteners made of stainless steel disposed at predetermined intervals in the middle of the longitudinal direction. These are joined together by 45 and formed as a roof tile ventilation section 40. Although not particularly illustrated, the fixture 45, the center member 41, the end lower member 42, and the end upper member 43 are fixed by rivets made of aluminum. An upper surface end side opening 44 is formed between the side end of the central member 41 and the end upper member 43 so as to open a gap toward the upper surface side of the roof tile ventilation unit 40. Further, a lower surface side opening that opens to the lower surface side of the roof tile ventilation unit 40 with a gap between the lower surface side of the side end of the central member 41 and the end of the lower end member 42 on the ventilation port 10 side. 46 is formed. The lower surface side opening 46 and the upper surface end side opening 44 communicate with each other to form a ventilation passage 47 in which air can move.
[0025]
Further, a waterproof member 48 made of an elastically deformable sponge-like foam is formed on the lower surface of the end lower member 42 along the longitudinal direction of the ridge. The waterproof member 48 has a flat roof tile 31 so that no gap is formed between the top surface of the flat roof tile 31 and the bottom surface of the end lower member 42 even when the top surface of the flat roof tile 31 is uneven. And the end lower member 42 are formed to improve adhesion.
[0026]
Furthermore, a drain hole 49 penetrating the front and back, which is disposed along the longitudinal direction at a predetermined interval, is formed at the eaves side end of the end lower member 42. This is because water droplets formed by condensation or the like on the surfaces of the central member 41, the upper end member 43 and the lower end member 42 fall on the upper surface of the flat roof tile 31 through this drain hole 49, It is formed so that water droplets do not accumulate inside the ventilation part 40.
[0027]
A ventilation port cover 50 is formed between the ridge tile ventilation unit 40 and the ventilation port 10 to cover the upper side of the ventilation port 10 in order to prevent water from entering from above the ventilation port 10.
Specifically, the ventilation port cover 50 includes a pair of flat plate members 60 that extend from the surfaces of the left and right roof members 20 of the ventilation port 10 to the ridge side and cover a part of the ventilation port 10, and the pair of flat plate members And a cover main body member 70 that covers the upper portion between the two members 60 and is positioned on the lower surface of the transverse member 81. The ventilation port cover 50 is formed so that air from the ventilation port 10 can be ventilated from the side along the longitudinal direction between the flat plate member 60 and the cover main body member 70.
[0028]
On the surface of the flat plate member 60 facing the ventilation port 10, a heat insulating member 61 made of a long thin plate-like foamed polystyrene is formed. The flat plate member 60 is located on the ridge side and is inclined on the ridge side of the ridge side of the inclined surface 62 and the inclined surface 62 that is steeply inclined upward toward the ridge side rather than the inclination of the roof member 20. And a folded portion 63 that is folded back toward the roof tile 30 side.
[0029]
Next, the operation and effect of the above-described embodiment will be described.
In the present embodiment, a ventilation port cover 50 that covers the upper side of the ventilation port 10 is formed between the ridge tile ventilation unit 40 and the ventilation port 10 in order to prevent water from entering from above the ventilation port 10. For this reason, air with rainwater is blown into the inside of the building tile ventilation section 40 from the side edge of the building tile 30 due to heavy wind and rain, and rainwater enters the inside of the ventilation passage 47, and near the top of the building above the ventilation opening 10 together with the wind and rain Even if it falls downward from the air to the vent 10, rainwater will adhere to the vent cover 50 that covers the vent 10.
[0030]
That is, more specifically, air accompanied by rainwater enters the building tile ventilation section 40 due to heavy wind and rain, and falls downward from the vicinity of the top of the building above the ventilation port 10 toward the ventilation port 10 together with the wind and rain. Even then, rainwater adheres to the upper surface of the flat plate member 60 or the cover body member 70 formed above the pair of flat plate members 60. Then, the water droplets adhering to the upper surface of the flat plate member 60 flow down toward the eaves along the inclination of the roof member 20. Further, the water droplets adhering to the upper surface of the cover main body member 70 evaporate as they are, or fall downward from both ends of the cover main body member 70 and fall on the upper surface of the flat plate member 60. The top surface flows down toward the eaves. As a result, it is possible to prevent rainwater that has entered the inside of the building tile ventilation section 40 from directly entering the inside of the building housing 83 through the ventilation opening 10, and the waterproofness of the building housing 83 can be maintained. .
[0031]
Further, when ventilating the air in the attic, the vent cover 50 allows the air from the vent 10 to travel from between the pair of flat plate members 60 toward the cover body member 70, and then the vent cover 50 Air from the ventilation port 10 can be discharged from the side along the longitudinal direction and between the flat plate member 60 and the cover main body member 70. The discharged air passes through the ventilation passage 47 of the building tile ventilation unit 40 and is discharged to the outside from the side end of the building tile 30. Thereby, the air in the attic can be ventilated to the outside through the ventilation port 10 in a state in which waterproofness is ensured.
[0032]
In the present embodiment, a heat insulating member 61 is formed on the surface of the flat plate member 60 facing the ventilation port 10. For this reason, warm air containing a large amount of water vapor in the attic does not directly collide with the flat plate member 60 having a temperature close to the outside air temperature through the ventilation port 10. As a result, it is possible to suppress the occurrence of condensation on the surface of the flat plate member 60 facing the ventilation opening 10, and to prevent water droplets due to this condensation from falling into the ventilation opening 10 or entering the inside of the building housing 83. The waterproofing of the building housing 83 can be ensured.
[0033]
Furthermore, in the present embodiment, the flat plate member 60 is provided with an inclined surface 62 that is located on the ridge side and has a steep upward slope toward the ridge side rather than the inclination of the roof member 20. For this reason, even if water drops or the like that have entered through the ventilation passage 47 inside the roof tile ventilation section 40 due to severe wind and rain fall on and adhere to the upper surface of the flat plate member 60, the slope rises steeply toward the building side. The inclined surface 62 is not raised, and it flows down toward the eave side opposite to the ventilation port 10. Thereby, it is possible to suppress the water droplets adhering to the surface of the flat plate member 60 from entering the inside of the building housing 83 from the ventilation port 10, and the waterproofing property of the building housing 83 can be maintained.
[0034]
In addition, in addition to this, at the front end of the flat plate member 60 on the ridge side, a folded portion 63 that is folded back toward the ridge tile 30 side is provided. For this reason, water droplets that have entered through the ventilation passage 47 inside the roof tile ventilation section 40 due to heavy wind and rain fall and adhere to the upper surface of the flat plate member 60, and further, the inclined surface 62 faces upward due to strong winds or the like. Can be dropped again on the surface of the flat plate member 60 by the tip of the folded portion 63. Thereby, it is possible to prevent water droplets transmitted on the surface of the flat plate member 60 from entering the inside of the ventilation port 10, and to maintain the waterproof property of the building housing 83.
[0035]
A waterproof member 48 made of an elastic sponge-like foam is formed on the lower surface of the end lower member 42 of the roof tile ventilation section 40 according to the present embodiment. For this reason, even if unevenness is formed on the upper surface of the flat roof tile 31, the lower surface of the end lower member 42 and the upper surface of the flat roof tile 31 can be brought into close contact with each other without a gap. Thereby, it is possible to prevent rainwater from entering the building housing 83 from between the lower surface of the roof tile ventilation section 40 and the upper surface of the flat roof tile 31, thereby ensuring the waterproof property of the building housing 83.
[0036]
Further, since a drain hole 49 penetrating the front and back is formed at the side end of the end lower member 42 of the roof tile ventilation section 40, the surface of the end lower member 42, the end upper member 43 and the like is caused by condensation. Even if a water droplet adheres, it can be dropped from the drain hole 49 onto the upper surface of the flat roof tile 31. Thereby, it is possible to prevent water droplets due to such condensation from accumulating inside the roof tile ventilation section 40, and to ensure the waterproofness of the building housing 83.
[0037]
【The invention's effect】
Since this invention is comprised as mentioned above, there exists an effect as described below.
According to the first aspect of the present invention, even if rainwater blown into the ventilation passage of the building tile ventilation section by strong wind enters the upper part of the ventilation opening at the top of the building, it enters the inside of the building frame from the ventilation opening. It is possible to provide a ridge ventilation structure that can suppress the above.
[0038]
And according to invention of Claim 1, it is a structure which is simple structure, Comprising: The rain water which was blown in to the ridge top part above a ventilation opening can suppress that it penetrates into the inside of a building frame from a ventilation opening. Ventilation structure can be provided.
[0039]
According to the invention described in claim 1 , even if water droplets adhere to the upper surface of the flat plate member, it is possible to provide a building ventilation structure that can prevent such water droplets from entering the inside of the building frame from the ventilation opening. Can do.
Furthermore , according to the first aspect of the present invention, there is provided a ridge ventilation structure that can prevent the water droplets from flowing from the upper surface of the flat plate member to the back surface side of the ventilation port even if water droplets adhere to the upper surface of the flat plate member. be able to.
And according to invention of Claim 2, the ridge ventilation structure which can suppress generation | occurrence | production of dew condensation above a ventilation port can be provided.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a building ventilation structure according to an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view showing a ridge tile ventilation unit according to the embodiment of the present invention.
FIG. 3 is an external perspective view showing the vent cover according to the embodiment of the present invention.
FIG. 4 is a longitudinal sectional view showing a flat plate member according to an embodiment of the present invention.
[Explanation of symbols]
10 Ventilation opening 20 Roof material
21 roof tiles 30 roof tiles
31 Flat tile 40 Building tile ventilation section
41 Central member 42 Lower end member
43 Upper end member 44 Upper surface end opening
45 Fixing 46 Bottom side opening
47 Ventilation passage 48 Waterproof material
49 Drain hole 50 Ventilation cover
60 Flat plate member 61 Thermal insulation member
62 Inclined surface 63 Folded part
70 Cover body member 80 Roof panel
81 Transverse member 82 Transverse member support
83 Building frame

Claims (2)

屋根部材の棟頂部に開口形成されている換気口と、この換気口の上方を覆う棟瓦と、その棟瓦の下方、且つ換気口の上方に位置して、換気口からの空気を棟瓦の側端に向かって換気可能な換気通路を有する棟瓦換気部とを備えた棟換気構造において、棟瓦を支える横部材に中央部材が支持されると共に屋根部材の上に載置固定された平瓦に接する端部下側部材と棟瓦に接する端部上側部材を備える棟瓦換気部を有し、この棟瓦換気部と前記換気口との間に、換気口の上方からの水の浸入を抑えるために換気口の上方を覆う換気口カバーを有し、この換気口カバーは、換気口の左右の屋根部材の表面から棟側にそれぞれ延びて換気口の一部を覆う一対の平板部材と、この一対の平板部材間の上方を覆うカバー本体部材とを備え、このカバー本体部材を棟瓦換気部の中央部材の下方に位置させ、前記平板部材は、その棟側には屋根部材の傾斜よりも棟側に向かって急勾配に上り傾斜となる傾斜面を備え、この平板部材の棟側端部には、棟瓦側に向かって折り返された折り返し部を備えてカバー本体部材の下方に位置し、換気口からの空気を両平板部材の間及び平板部材とカバー本体部材との間の長手方向に沿う側方から換気可能に形成されていることを特徴とする棟換気構造。A ventilation opening formed at the top of the roof of the roof member, a roof tile covering the upper side of the ventilation opening, and a lower end of the roof tile and above the ventilation opening, air from the ventilation opening is placed on the side edge of the roof tile. In a ridge ventilation structure having a ridge tile ventilation section having a ventilation passage that can be ventilated toward the end, a center member is supported by a horizontal member that supports the ridge tile, and an end that is in contact with a flat tile placed and fixed on the roof member It has a ridge tile ventilation part with an upper part member in contact with the subordinate member and the ridge tile, and between the ridge tile ventilation part and the ventilating port, in order to suppress water ingress from above the ventilating hole, The vent cover covers a pair of flat members extending from the surfaces of the roof members on the left and right sides of the vent to the ridge side to cover a part of the vent and between the pair of flat members. And a cover body member covering the upper side of the cover body. Material was located below the central member of Munagawara ventilation unit, wherein the flat plate member is in its ridge side with an inclined surface which becomes upward inclined steeply toward the ridge side than the slope of the roof member, the flat plate member The ridge side end portion is provided with a folded portion that is folded back toward the ridge tile side, and is positioned below the cover main body member so that the air from the ventilation port is placed between the flat plate members and between the flat plate member and the cover main body member. A ridge ventilation structure characterized by being ventilated from the side along the longitudinal direction. 平板部材の換気口に面する表面には、断熱部材が形成されていることを特徴とする請求項1記載の棟換気構造。  The building ventilation structure according to claim 1, wherein a heat insulating member is formed on a surface of the flat plate member facing the ventilation opening.
JP26116897A 1997-09-26 1997-09-26 Building ventilation structure Expired - Lifetime JP3907798B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26116897A JP3907798B2 (en) 1997-09-26 1997-09-26 Building ventilation structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26116897A JP3907798B2 (en) 1997-09-26 1997-09-26 Building ventilation structure

Publications (2)

Publication Number Publication Date
JPH11100963A JPH11100963A (en) 1999-04-13
JP3907798B2 true JP3907798B2 (en) 2007-04-18

Family

ID=17358074

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26116897A Expired - Lifetime JP3907798B2 (en) 1997-09-26 1997-09-26 Building ventilation structure

Country Status (1)

Country Link
JP (1) JP3907798B2 (en)

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