JP3872202B2

JP3872202B2 - Mounting structure for roof insulation panels

Info

Publication number: JP3872202B2
Application number: JP08041398A
Authority: JP
Inventors: 博川上
Original assignee: Achilles Corp
Current assignee: Achilles Corp
Priority date: 1998-03-12
Filing date: 1998-03-12
Publication date: 2007-01-24
Anticipated expiration: 2018-03-12
Also published as: JPH11256746A

Description

【０００１】
【発明の属する技術分野】
この発明は、屋根用断熱パネルの取付構造に関し、簡単に気密状態にして施工できるとともに、角材と発泡断熱材との接合強度を向上することができるようにしたものである。
【０００２】
【従来の技術】
近年、一般木造住宅の仕様として高断熱・高気密とすることで、軸組の耐久性の向上や冷暖房負荷の低減を図ることが行われており、外断熱工法などが採用されている。
【０００３】
これまでの外断熱工法などでは、主として建物の外壁部分や天井部分に断熱パネル等を取り付けて断熱するようにしているが、建物全体の熱の出入りを検討すると、真夏日などには、小屋裏部分の温度上昇が大きく、天井部分で断熱しても天井の断熱材部分の温度も相当高温になってしまうことから、屋根部分の断熱が重要になってきている。
【０００４】
このため、屋根部分を断熱しようとする場合には、例えば図６に示すように、合板等の面材１上の両側および中間部に角材２が取付けられるとともに、これら角材２の間に発泡断熱材３などが充填された外壁部分の断熱に用いる断熱パネルと同様の断熱パネル４を用い、図７に示すように、屋根部分の母屋や垂木などの軸組５の上に断熱パネル４を突き合わせながら角材２，２同志を釘などで連結固定し、その上に野地板６を取付けて屋根材（図示せず）を取付けるようにしている。
【０００５】
ところが、このような断熱パネル４，４を突き合わせて取付けただけでは、断熱パネル４，４の突き合わせ部分を気密状態に出来ず、充分な断熱性能を確保することができない。
【０００６】
そこで、断熱パネル４，４の突き合わせ部分に小屋裏側からシール用のテープ７を貼ってシールする目地処理をしたり、断熱パネルを突き合わせる場合に突き合わせ面にウレタン等のシール材を吹き付けるなどの目地処理を行うようにして気密状態にしている。
【０００７】
【発明が解決しようとする課題】
ところが、断熱パネル４を取付けた後、小屋裏側からテープ７を貼付けて気密状態を確保しようとしても、軸組５が邪魔になりテープ７を貼ることができない部分が生じ、完全に気密状態にすることが出来ず、しかも施工が難しく、時間も掛かってしまうという問題がある。
【０００８】
また、ウレタンなどのシール材を用いる場合も断熱パネルを釘などで固定する取付作業に加え、シール材の吹付作業が加わり、施工が大変になるという問題もある。
【０００９】
さらに、このような断熱パネル４は、例えば面材１と角材２とを型枠として、その内側に発泡断熱材３の原液を噴射して製造されているが、発泡断熱材３と面材１との接触面積に比べて発泡断熱材３と角材２との接触面積が少なく接合強度が小さく、一層の強度向上が望まれており、特に、面材１として合板などの硬質面材に代えて合成樹脂フィルムなどの軟質面材を用いる場合には、角材２と発泡断熱材３との接合強度が重要となる。
【００１０】
この発明は、かかる従来技術の問題点に鑑みてなされたもので、屋根部分の断熱施工が容易で、簡単に気密状態にすることができるとともに、発泡断熱材の接合強度も大きい屋根用断熱パネルの取付構造を提供しようとするものである。
【００１１】
【課題を解決するための手段】
上記従来技術が有する課題を解決するこの発明の請求項１記載の屋根用断熱パネルの取付構造は、屋根用断熱パネルの取付構造であって、前記屋根用断熱パネルを、シート状の面材上に角材を配置し、この面材の両端縁に前記角材の外側面に沿って上面上で折り曲げて固定可能な長さの突出部を設けるとともに、前記面材の両端部に配置された前記角材の内側の面材側に相対向する切欠部を形成し、これら角材間の前記面材上に発泡断熱材を充填発泡させて構成し、この屋根用断熱パネルの前記面材を下にして前記角材を、屋根軸組と兼用し、あるいは軸組上に側面同士を突き合わせて取り付けるとともに、隣接する前記屋根用断熱パネルの面材の突出部同士を重ねて隣接するこれら角材の外側面に沿って上方に突き出させ、いずれか一方の角材上に固定し、これら角材上に野地板を固定してなることを特徴とするものである。
【００１２】
この屋根用断熱パネルの取付構造によれば、シート状の面材上の両端部に、内側の面材側に切欠部を形成した角材を配置するとともにその間に発泡断熱材を充填した断熱パネルの面材の両端縁に突出部を設けて角材の外側面に沿って折り曲げて上面まで届く長さにしてあり、この屋根用断熱パネルを並べて屋根の軸組、あるいは軸組と兼用して取付ける場合に、角材の側面同志を突き合わせるとともに、面材同志を重ねて角材の間から一方の角材の上面上に突出部を折り曲げて固定でき、これにより、目地部分を面材でシールして取り付けることができるようになり、角材の切欠部によって発泡断熱材との接合強度の向上を図るようにしている。
【００１３】
さらに、この角材の外側に面材の突出部を設けた屋根用断熱パネルの取付構造では、屋根用断熱パネルで発泡断熱材が角材の外側にはみ出すと、面材を折り曲げて目地部分をシールする場合の目地の間隔が広くなってシールが不充分となるが、角材に形成した切欠部によって発泡断熱材の角材外側へのはみ出しを防止して取付時に問題を生じることがない。
【００１４】
また、この発明の請求項２記載の屋根用断熱パネルの取付構造は、前記請求項１記載の構成に加え、前記発泡断熱材を前記角材の高さより低くするとともに、前記切欠部の高さを前記発泡断熱材の高さより低くしたことを特徴とするものである。
【００１５】
この屋根用断熱パネルの取付構造によれば、発泡断熱材の高さを角材の高さより低くするとともに、切欠部の高さを発泡断熱材の高さより低くするようにしており、切欠部による接触面積の増大による接合強度向上と同時に、発泡断熱材の表面側に断熱欠損のない通気用の空間を形成できるようにしている。
【発明を実施するための最良の形態】
【００１６】
以下、この発明の実施の形態を図面を参照しながら詳細に説明する。
図１および図２はこの発明の屋根用断熱パネルの取付構造の一実施の形態にかかる屋根用断熱パネルの外観斜視図および部分拡大図である。
【００１７】
この屋根用断熱パネル１０は、シート状の面材１１を備えており、この面材１１上の両端縁に目地部分のシール用の突出部１１ａを残し、その内側にそれぞれ角材１２が平行に配置されるとともに、中間部にも角材１２が配置され、それぞれの角材１２，１２間に発泡断熱材１３が充填され、面材１１とそれぞれの角材１２、面材１１と発泡断熱材１３がその接着作用で接着されて構成されている。なお、図中、１４は、屋根用断熱パネル１０の形状を保持するための仮連結材１４であり、角材１２同志を連結して３本使用され、運搬や施工の際にパネルとしての取扱いができるようにする一方、施工後には、取り外される。
【００１８】
また、この屋根用断熱パネル１０のシート状の面材１１には、角材１１の外側にシール用の突出部１１ａが形成され、この突出部１１ａの長さが角材１２の外側面１２ａおよび上面１２ｂに沿って折り曲げたときに少なくとも上面１２ｂの幅の半分程度まで覆うことができるようにしてある。
【００１９】
さらに、この屋根用断熱パネル１０の３本の角材２のうち面材１１の両端部（両側）に配置される２本の角材１２には、内側の面材１１側（下隅側）に相対向する切欠部１２ｃが形成され、この切欠部１２ｃにも発泡断熱材１３が充填されている。
【００２０】
この角材１２の切欠部１２ｃは、図２に示すように、例えば矩形断面に切り欠かれ、これによって発泡断熱材１３との接触面積の増大を図ることで角材１２と発泡断熱材１３との接合強度の向上を図っている。
【００２１】
さらに、この角材１２の切欠部１２ｃによって、面材１１上に発泡断熱材１３の原液を噴射して発泡させた状態の発泡断熱材１３上に角材１２を押し当てて取り付けるようにする場合の発泡断熱材１３の外側へのはみ出しを防止するものであり、外側にはみ出そうとする発泡断熱材１３を切欠部１２ｃ内に入れるようにする（なお、工程としては、切欠部１２ｃを上に向けて配置した角材１２に面材１１ごと発泡断熱材１３を被せるように押し当てる場合も同様である。）。
【００２２】
このため、種々の実験を行った結果、角材１２の切欠部１２ｃの断面積Ｓが、面材１１上で発泡する発泡断熱材１３の端部の横断面形状が略扇形（四分割円）状になる部分の面積Ｓ1 との間に次式の関係を満たすようにする必要があることが分かった。
【００２３】
１／２・Ｓ1 ≧Ｓ≧１／４・Ｓ1そして、この角材１２の切欠部１２ｃの高さＨを、発泡断熱材１３の充填高さＨ1 より小さくする。
【００２４】
こうすることで、切欠部１２ｃの上方に発泡断熱材１３が充填されない隙間が形成されることを防止し、屋根用断熱パネル１０に断熱欠損を生じないようにすることができる。
【００２５】
したがって、この関係を満たすように角材１２に切欠部１２ｃを形成するとともに、発泡断熱材１３の端部の発泡状態を調整することで、角材１２の外側面１２ａと発泡断熱材１３の外側端とをほぼ一致させた状態で角材１２と発泡断熱材１３とを押し付ければ、角材１２の外側への発泡断熱材１３のはみ出しを防止して一体にできる。
【００２６】
なお、切欠部１２ｃの形状は、図示例の矩形にする場合に限らず、上記の断面積の関係を満たすものであれば、矩形の階段状や円の一部や楕円の一部などの曲線を含む断面形状など任意の断面形状で良い。
【００２７】
この屋根用断熱パネル１０では、角材１２として通常木材が用いられ、例えば垂木と兼用できるようにその太さや長さが選定され、例えば６０×６０×３０００mm、あるいは６０×６０×４０００mmのものが使用され、屋根用断熱パネル１０の大きさとしては、例えば幅９００mm×長さ３０００mm、あるいは、長さが４０００mmに作られる。
【００２８】
また、面材１１を構成するシートとして、クラフト紙、ライナー紙などの紙、ポリエチレンフィルム、ポリプロピレンフォルム、ナイロンフィルムなどのプラスチックフィルム、アルミニウムや鉄などからなる金属箔、さらにプラスチックフィルムと金属箔とのラミネート品、プラスチックフィルムと紙とのラミネート品、金属箔と紙とのラミネート品等の可撓性シートが用いられ、湿気を考慮して気密透湿性や気密不透湿性とすることができる。
【００２９】
さらに、発泡断熱材１３としては、例えば硬質ポリウレタンフォームなどの自己接着性の合成樹脂発泡体を用いることができ、この発泡断熱材１３の高さ（厚み）は角材１２の高さ（厚み）と同じにすることもできるが、角材１２の高さ（厚み）より薄くすることで、通気スペースを有する屋根用断熱パネル１０とすることができる。
【００３０】
このように構成した屋根用断熱パネル１０を用いて行うこの発明の屋根用断熱パネルの取付構造の一実施の形態について、図３を参照して説明する。
【００３１】
この屋根用断熱パネルの取付構造では、屋根の母屋等の軸組５の上に角材１２を垂木と兼用するように配置して屋根用断熱パネル１０を並べ、隣接する屋根用断熱パネル１０，１０の角材１２，１２の間に面材１１，１１の突出部１１ａ，１１ａ同志を重ねて上方に突き出させ、角材１２，１２同志や角材１２と軸組５とをそれぞれ釘などで固定する。
【００３２】
そして、角材１２同志を連結する仮連結材１４を取り外し、重ねた突出部１１ａ，１１ａを一方の角材１２の上面１２ｂに折り曲げる。
【００３３】
この重ねられた面材１１，１１の突出部１１ａ，１１ａを釘などの固定具で角材１２に止める。
【００３４】
この後、これら屋根用断熱パネル１０，１０の角材１２，１２の上に野地板６を張り、釘などで固定して、従来と同様に屋根材を取り付ける。
【００３５】
こうして屋根用断熱パネル１０を取付けることで、小屋裏側である屋根用断熱パネル１０，１０の室内側の目地部分は、重ねられた面材１１，１１で完全にシールされ、完全な気密状態にすることができ、特に角材１２の外側に発泡断熱材１３のはみ出しがないので、隣接する屋根用断熱パネル１０，１０同志を隙間無く並べることができる。
【００３６】
そして、この屋根用断熱パネル１０の取付作業の際には、側方に突き出た面材１１の突出部１１ａ同志を重ねて上側に突き出すようにすれば良く、従来の垂木などの取付作業と殆ど変わらない作業工程で断熱材の取付け及び目地部分のシール作業が完了し、短時間に垂木の取付けおよび断熱施工ができ、目地部分のシールまで行うことができる。
【００３７】
また、この屋根用断熱パネル１０では、面材１１の突出部１１ａ同志を釘などの固定具で角材１２の上面１２ｂに固定することができ、接着材等による固定と異なり、物理的な固定のため、耐久性に優れ、長期間気密状態を保持することができる。
【００３８】
なお、この屋根用断熱パネル１０は、切妻の屋根や寄せ棟の屋根等であっても、それぞれの軸組の上に配置し、面材１１の突出部１１ａを重ねて角材１２の上面１２ｂで固定することで屋根部分の断熱施工を簡単に行うことができる。
【００３９】
また、屋根用断熱パネル１０の角材１２を垂木と兼用して軸組５に取り付ける場合に限らず、軸組に取り付けられた垂木の上や野地板の上などに取付けるようにすることもできる。
【００４０】
次に、この屋根用断熱パネルの取付構造に使用する屋根用断熱パネルの製造方法について、図面を参照して説明する。
図４および図５はこの発明の屋根用断熱パネルの取付構造に使用する屋根用断熱パネルの製造方法にかかる側面図および図４中のＡ−Ａ，Ｂ−Ｂ，Ｃ−Ｃの各矢視断面図である。
【００４１】
この屋根用断熱パネルの製造は、ロール状に巻かれたシート状の面材２１を内側を上にして無端の型部材２２上に連続供給し、この面材２１上に発泡断熱材２３の発泡原液を噴射ノズル２４から噴射する。
【００４２】
この面材２１上に発泡原液を噴射ノズル２４から噴射する場合には、発泡原液の性状に応じて噴射量や噴射幅を調整し、発泡完了後の発泡断熱材２３の厚さや幅を調整する。
【００４３】
一方、この無端の型部材２２の下方に無端の型部材２２と同方向に進行するコンベア２５を設置しておき、このコンベア２５上に３本の角材２６を屋根用断熱パネル２０の配置に合わせて並べて連続して供給する。
【００４４】
このコンベア２５上の３本の角材２６のうち両側の２本は、内側の上方部分に切欠部２６ａが形成され、使用状態の屋根用断熱パネル２０と逆にした状態で配置して供給する。
【００４５】
次いで、発泡原液が噴射されて発泡が進行している面材２１を反転させて発泡断熱材２３が面材２１の下面に着いている状態とし、面材２１ごと角材２６に被せるように発泡断熱材２３を押し付けて面材２１と発泡断熱材２３と角材２６とを一体にし、連続して屋根用断熱パネル２０を製造する。
【００４６】
この発泡断熱材２３が下面に着いている面材２１を被せるようにする場合には、発泡断熱材２３の面材２１との端縁がコンベア２５上の両端部の角材２６の外側面とほぼ一致するようにして、面材２１の突出部２１ａのみが突き出した屋根用断熱パネル２０を製造する。
【００４７】
これにより、発泡断熱材２３がはみ出すこと無く角材２６の間に充填され、また切欠部２６ａによって接着強度が増大し、強固に接着されるとともに、発泡断熱材２３に切り捨てるような無駄が全く生じることがなく、歩留まりが向上する。
【００４８】
さらに、歩留まりの問題だけでなく、切欠部２６ａのない角材２６に発泡断熱材２３が着けられた面材２１を被せるようにすると、角材２６の外側の面材２１との隅部に発泡断熱材２３がはみ出すことになり、従来の屋根用断熱パネルのように角材の外側に面材を突き出した状態にする必要がない場合には、カッタなどではみ出した発泡断熱材とともに面材を切り捨てるだけで良いが、この発明の屋根用断熱パネル２０のように取付時のシール用の面材２１の突出部２１ａを必要とする場合には、従来の連続製造法では対応することができなくなり、この屋根用断熱パネル２０の製造方法が極めて有効となるのである。
【００４９】
【発明の効果】
以上、実施の形態とともに具体的に説明したようにこの発明の請求項１記載の屋根用断熱パネルの取付構造によれば、シート状の面材上の両端部に、内側の面材側に切欠部を形成した角材を配置するとともにその間に発泡断熱材を充填した断熱パネルの面材の両端縁に突出部を設けて角材の外側面に沿って折り曲げて上面まで届く長さにしたので、この屋根用断熱パネルを並べて屋根の軸組、あるいは軸組と兼用して取付ける場合に、角材の側面同志を突き合わせるとともに、面材同志を重ねて角材の間から一方の角材の上面上に突出部を折り曲げて固定でき、これにより、目地部分を面材でシールして取り付けることができるとともに、角材の切欠部によって発泡断熱材との接合強度の向上を図ることができる。
【００５０】
さらに、この角材の外側に面材の突出部を設けた屋根用断熱パネルの取付構造では、発泡断熱材が角材の外側にはみ出すと、面材を折り曲げて目地部分をシールする場合の目地の間隔が広くなってシールは不充分となるが、角材に形成した切欠部によって発泡断熱材の角材外側へのはみ出しを防止して取付時に問題を生じることのなく屋根用断熱パネルを取り付けることができる。
【００５１】
また、この発明の請求項２記載の屋根用断熱パネルの取付構造によれば、発泡断熱材の高さを角材の高さより低くするとともに、切欠部の高さを発泡断熱材の高さより低くしたので、切欠部による接触面積の増大による接合強度向上と同時に、発泡断熱材の表面側に断熱欠損のない通気用の空間を形成することができる。
【図面の簡単な説明】
【図１】この発明の屋根用断熱パネルの取付構造の一実施の形態に使用する屋根用断熱パネルの外観斜視図である。
【図２】この発明の屋根用断熱パネルの取付構造の一実施の形態に使用する屋根用断熱パネルの部分拡大図である。
【図３】この発明の屋根用断熱パネルの取付構造の一実施の形態にかかる屋根への取付状態の拡大図である。
【図４】この発明の屋根用断熱パネルの取付構造の一実施の形態に使用する屋根用断熱パネルの製造方法の側面図である。
【図５】この発明の屋根用断熱パネルの取付構造の一実施の形態に使用する屋根用断熱パネルの製造方法の図４中のＡ−Ａ，Ｂ−Ｂ，Ｃ−Ｃの各矢視断面図である。
【図６】従来の屋根用断熱パネルの外観斜視図である。
【図７】従来の屋根用断熱パネルの屋根への取付状態の側面図および部分拡大図である。
【符号の説明】
５軸組
６野地板
１０屋根用断熱パネル
１１面材
１１ａ突出部
１２角材
１２ａ外側面
１２ｂ上面
１２ｃ切欠部
１３発泡断熱材
１４仮連結材
２０屋根用断熱パネル
２１面材
２１ａ突出部
２２無端の型部材
２３発泡断熱材
２４噴射ノズル
２５コンベア
２６角材
２６ａ切欠部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mounting structure for a heat insulating panel for a roof, which can be easily set in an airtight state and can improve the bonding strength between a square member and a foam heat insulating material.
[0002]
[Prior art]
In recent years, as a specification of general wooden houses, high heat insulation and high airtightness have been achieved to improve the durability of the frame and to reduce the heating and cooling load, and an external heat insulation method or the like has been adopted.
[0003]
In conventional exterior insulation methods, etc., heat insulation panels are mainly installed on the outer wall and ceiling of the building to insulate them. Since the temperature rise of the part is large, and the temperature of the heat insulating material part of the ceiling becomes considerably high even if it is insulated at the ceiling part, the heat insulation of the roof part has become important.
[0004]
For this reason, when it is going to insulate the roof part, for example, as shown in FIG. 6, the square members 2 are attached to both sides and the middle part of the face material 1 such as a plywood, and the foam insulation is provided between these square members 2. As shown in FIG. 7, the heat insulation panel 4 is abutted on the frame assembly 5 such as a roof purlin or a rafter as shown in FIG. 7 using the heat insulation panel 4 similar to the heat insulation panel used for heat insulation of the outer wall portion filled with the material 3. On the other hand, the square members 2 and 2 are connected and fixed with nails or the like, and a base plate 6 is attached thereon to attach a roofing material (not shown).
[0005]
However, the abutting portions of the heat insulating panels 4 and 4 cannot be made airtight only by attaching such heat insulating panels 4 and 4 to each other, and sufficient heat insulating performance cannot be ensured.
[0006]
Therefore, joints such as applying a sealing tape 7 to the abutting portions of the heat insulating panels 4 and 4 from the back of the hut and sealing them, or spraying a sealing material such as urethane on the abutting surface when abutting the heat insulating panels, etc. It is in an airtight state by performing processing.
[0007]
[Problems to be solved by the invention]
However, after attaching the heat insulation panel 4, even if the tape 7 is applied from the back side of the hut to secure an airtight state, a portion where the shaft assembly 5 becomes obstructive and the tape 7 cannot be applied is generated, and the state is made completely airtight. In addition, there is a problem that construction is difficult and takes time.
[0008]
In addition, when a sealing material such as urethane is used, there is a problem that the construction work becomes difficult because a spraying operation of the sealing material is added in addition to the mounting operation of fixing the heat insulating panel with a nail or the like.
[0009]
Further, such a heat insulating panel 4 is manufactured by using, for example, the face material 1 and the square material 2 as a mold and injecting a stock solution of the foam heat insulating material 3 into the inside, but the foam heat insulating material 3 and the face material 1 are manufactured. Compared with the contact area between the foam insulation material 3 and the square member 2, the contact area between the foam insulation member 3 and the square member 2 is small and the joint strength is small. When a soft face material such as a synthetic resin film is used, the bonding strength between the square member 2 and the foam heat insulating material 3 is important.
[0010]
The present invention has been made in view of such problems of the prior art, and is capable of heat-insulating the roof portion, can be easily made airtight, and has a high insulation strength for the foam heat insulating material. It is intended to provide a mounting structure .
[0011]
[Means for Solving the Problems]
The roof heat insulating panel mounting structure according to claim 1 of the present invention for solving the problems of the prior art is a roof heat insulating panel mounting structure, wherein the roof heat insulating panel is mounted on a sheet-like surface material. The square member is disposed on both ends of the face member, and provided with protrusions having a length that can be bent and fixed on the upper surface along the outer side surface of the square member. A notch part opposite to the inner face material side is formed, and foamed heat insulating material is filled and foamed on the face material between the square members, and the face material of the heat insulating panel for roof is placed downward. Along with attaching the square rods to the roof frame, or by attaching the side surfaces to each other on the frame frame, along the outer side surfaces of these adjacent square beams by overlapping the protruding parts of the adjacent surface members of the roof insulation panel Protruding upwards, either one Fixed on the wood and is characterized by comprising securing the sheathing roof board on these timbers.
[0012]
According to the mounting structure of the heat insulating panel for roof, the square members in which the cut portions are formed on the inner face material side are arranged at both ends on the sheet-like face material, and the heat insulating panel filled with the foam heat insulating material therebetween. When projecting parts are provided at both edges of the face material and bent along the outer side surface of the square material to reach the upper surface, this roof insulation panel is placed side by side and is used as a roof frame or a shaft frame In addition, the side members of the square member are abutted, and the protrusions are folded and fixed on the upper surface of one of the square members by overlapping the face members, so that the joints are sealed and attached with the face member. Therefore, the strength of the joint with the foamed heat insulating material is improved by the notch portion of the square member.
[0013]
Further, in the roof heat insulating panel mounting structure in which the protrusions of the face material are provided outside the square member , when the foam heat insulating material protrudes outside the square member by the roof heat insulating panel , the face member is folded to seal the joint portion. In this case, the gap between the joints becomes wide and the seal becomes insufficient. However, the notched portion formed in the square member prevents the foamed heat insulating material from protruding to the outside of the square member, so that a problem does not occur during installation .
[0014]
Moreover, in addition to the structure of the said Claim 1, the attachment structure of the heat insulation panel for roof of Claim 2 of this invention makes the said foam heat insulating material lower than the height of the said square member, and makes the height of the said notch part. It is characterized by being lower than the height of the foam heat insulating material.
[0015]
According to the mounting structure of the thermal insulation panel for roof, the height of the foam insulation is made lower than the height of the square member, and the height of the notch is made lower than the height of the foam insulation. At the same time as improving the bonding strength by increasing the area, it is possible to form a ventilation space without heat insulation defects on the surface side of the foamed heat insulating material.
BEST MODE FOR CARRYING OUT THE INVENTION
[0016]
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 and 2 are an external perspective view and a partially enlarged view of a roof heat insulation panel according to an embodiment of the roof heat insulation panel mounting structure of the present invention.
[0017]
This heat insulation panel 10 for roof is provided with a sheet-like face material 11, leaving a projecting portion 11 a for sealing a joint portion at both ends of the face material 11, and square members 12 are arranged in parallel on the inside thereof. At the same time, a square member 12 is also arranged in the middle part, and a foam heat insulating material 13 is filled between the respective square members 12, 12, and the face member 11 and each square member 12, the face member 11 and the foam heat insulating member 13 are bonded to each other. It is configured to be bonded by action. In addition, in the figure, 14 is a temporary connecting material 14 for maintaining the shape of the heat insulating panel 10 for the roof, and 3 pieces are used by connecting the square members 12, and they are handled as a panel during transportation and construction. On the other hand, it will be removed after construction.
[0018]
Further, the sheet-like face material 11 of the heat insulating panel 10 for roof is formed with a projecting portion 11a for sealing on the outside of the square member 11, and the length of the projecting portion 11a is the outer surface 12a and the upper surface 12b of the square member 12. Can be covered to at least about half of the width of the upper surface 12b.
[0019]
Further, of the three square members 2 of the heat insulating panel 10 for roof, the two square members 12 disposed on both ends (both sides) of the face member 11 are opposed to the inner face member 11 side (lower corner side). A notch 12c is formed, and the notched portion 12c is also filled with the foam heat insulating material 13.
[0020]
As shown in FIG. 2, the cutout portion 12 c of the square member 12 is cut into, for example, a rectangular cross section, thereby increasing the contact area with the foam heat insulating material 13, thereby joining the square member 12 and the foam heat insulating material 13. The strength is improved.
[0021]
Further, foaming in the case where the square member 12 is pressed and attached to the foamed heat insulating material 13 in a state where the foamed heat insulating material 13 is sprayed and foamed onto the face material 11 by the notch 12c of the square member 12. This is to prevent the heat insulating material 13 from protruding to the outside, and the foam heat insulating material 13 that is about to protrude outside is inserted into the notch 12c (in the process, the notch 12c is directed upward). The same applies to the case where the foamed heat insulating material 13 is pressed together with the face material 11 on the arranged square member 12.
[0022]
For this reason, as a result of various experiments, the cross-sectional area S of the notch portion 12c of the square member 12 is such that the cross-sectional shape of the end portion of the foam heat insulating material 13 foamed on the face member 11 is substantially fan-shaped (quarterly divided circle). It has been found that it is necessary to satisfy the following relationship with the area S1 of the portion to be
[0023]
1 / 2.S1.gtoreq.S.gtoreq.1 / 4.S1 The height H of the notch 12c of the square member 12 is made smaller than the filling height H1 of the foam heat insulating material 13.
[0024]
By doing so, it is possible to prevent a gap that is not filled with the foamed heat insulating material 13 from being formed above the notch portion 12c, and to prevent a heat insulation defect from occurring in the heat insulating panel 10 for roof.
[0025]
Therefore, by forming the notch 12c in the square member 12 so as to satisfy this relationship, and adjusting the foaming state of the end portion of the foam heat insulating material 13, the outer surface 12a of the square member 12 and the outer end of the foam heat insulating material 13 If the square member 12 and the foam heat insulating material 13 are pressed in a state where the two are substantially matched, the foam heat insulating material 13 is prevented from protruding to the outside of the square member 12 and can be integrated.
[0026]
In addition, the shape of the notch 12c is not limited to the rectangular shape in the illustrated example, but may be a curved line such as a rectangular stepped shape, a part of a circle, or a part of an ellipse as long as the above cross-sectional area relationship is satisfied. Any cross-sectional shape such as a cross-sectional shape including
[0027]
In this heat insulating panel 10 for roof, normal wood is used as the square member 12, and its thickness and length are selected so that it can be used as a rafter, for example, 60 × 60 × 3000 mm or 60 × 60 × 4000 mm. The size of the heat insulating panel 10 for roof is, for example, 900 mm wide × 3000 mm long, or 4000 mm long.
[0028]
Further, as a sheet constituting the face material 11, paper such as kraft paper and liner paper, polyethylene film, polypropylene film, plastic film such as nylon film, metal foil made of aluminum or iron, and further plastic film and metal foil A flexible sheet such as a laminate product, a laminate product of a plastic film and paper, or a laminate product of metal foil and paper is used, and it can be made airtight or airtight and moisture impermeable in consideration of moisture.
[0029]
Furthermore, as the foam heat insulating material 13, for example, a self-adhesive synthetic resin foam such as rigid polyurethane foam can be used. The height (thickness) of the foam heat insulating material 13 is equal to the height (thickness) of the square member 12. Although it can also be made the same, it can be set as the heat insulation panel 10 for roofs which has ventilation space by making it thinner than the height (thickness) of the square 12.
[0030]
One embodiment of the roof heat insulating panel mounting structure of the present invention, which is performed using the thus configured roof heat insulating panel 10, will be described with reference to FIG.
[0031]
In this roof insulation panel mounting structure, the roof insulation panels 10 are arranged on the frame 5 such as the roof purlin or the like so that the square members 12 are also used as rafters, and the adjacent insulation panels 10 and 10 for the roof. The projections 11a and 11a of the face members 11 and 11 are overlapped between the square members 12 and 12 and protrude upward, and the square members 12 and 12 or the square member 12 and the shaft assembly 5 are fixed with nails or the like.
[0032]
Then, the temporary connecting member 14 that connects the square members 12 is removed, and the overlapped protruding portions 11 a and 11 a are bent to the upper surface 12 b of one square member 12.
[0033]
The protruding portions 11a and 11a of the stacked face members 11 and 11 are fixed to the square member 12 with a fixture such as a nail.
[0034]
Thereafter, the base plate 6 is stretched on the square members 12 and 12 of the roof insulation panels 10 and 10 and fixed with nails or the like, and the roof member is attached in the same manner as in the past.
[0035]
By attaching the heat insulating panel 10 for the roof in this way, the joint portion on the indoor side of the heat insulating panel 10 for the roof, which is the back side of the hut, is completely sealed by the stacked face materials 11 and 11 to be completely airtight. In particular, since there is no protrusion of the foam heat insulating material 13 on the outside of the square member 12, the adjacent roof heat insulating panels 10 and 10 can be arranged without gaps.
[0036]
And in the installation work of this heat insulation panel 10 for roofs, the protrusion part 11a of the surface material 11 protruded to the side should just be piled up, and it should protrude from the upper part, and most installation work, such as a conventional rafter, is sufficient. Installation of the heat insulating material and sealing of the joint portion are completed in the same work process, and the rafter can be attached and insulated in a short time, and the sealing of the joint portion can be performed.
[0037]
Moreover, in this heat insulation panel 10 for roofs, the protrusions 11a of the face member 11 can be fixed to the upper surface 12b of the square member 12 with a fixing tool such as a nail. Therefore, it is excellent in durability and can be kept airtight for a long time.
[0038]
In addition, even if this heat insulation panel 10 for roofs is a roof of a gable, a roof of a ridge, etc., it arrange | positions on each axis | shaft group, overlaps the protrusion part 11a of the face material 11, and is the upper surface 12b of the square member 12. By fixing, it is possible to easily insulate the roof portion.
[0039]
Moreover, it is not restricted to the case where the square 12 of the heat insulation panel 10 for roofs is used also as a rafter, and it attaches to the shaft set 5, but it can also be made to attach on the rafter attached to the shaft set, or on a field board.
[0040]
Next, the manufacturing method of the heat insulation panel for roofs used for the installation structure of this heat insulation panel for roofs is demonstrated with reference to drawings.
4 and 5 are side views according to the method for manufacturing a roof heat insulating panel used in the roof heat insulating panel mounting structure of the present invention, and arrows AA, BB, and CC in FIG. It is sectional drawing.
[0041]
In the manufacture of the heat insulation panel for roof, the sheet-like face material 21 wound in a roll shape is continuously supplied onto the endless mold member 22 with the inside facing up, and the foam heat insulation material 23 is foamed on the face material 21. The stock solution is sprayed from the spray nozzle 24.
[0042]
When spraying the foaming stock solution onto the face material 21 from the spray nozzle 24, the spray amount and spray width are adjusted according to the properties of the foaming stock solution, and the thickness and width of the foam heat insulating material 23 after foaming is adjusted. .
[0043]
On the other hand, a conveyor 25 that travels in the same direction as the endless mold member 22 is installed below the endless mold member 22, and three square members 26 are arranged on the conveyor 25 in accordance with the arrangement of the heat insulating panel 20 for the roof. And supply continuously.
[0044]
Of the three square members 26 on the conveyor 25, two on both sides are provided with a notch 26a formed in the upper part on the inner side, arranged opposite to the roof insulation panel 20 in use.
[0045]
Next, the foam material is injected and the face material 21 in which foaming is in progress is reversed so that the foam heat insulating material 23 is attached to the lower surface of the face material 21, and the foam material is covered with the square material 26 together with the face material 21. The material 23 is pressed to integrate the face material 21, the foam heat insulating material 23, and the square material 26, and the roof heat insulating panel 20 is continuously manufactured.
[0046]
When the foam insulating material 23 covers the face material 21 attached to the lower surface, the edge of the foam insulating material 23 with the face material 21 is substantially the same as the outer surface of the square material 26 at both ends on the conveyor 25. The roof heat insulating panel 20 in which only the protruding portion 21a of the face member 21 protrudes is manufactured so as to match.
[0047]
As a result, the foam heat insulating material 23 is filled between the square members 26 without protruding, and the adhesive strength is increased by the notch portion 26a, so that the foam heat insulating material 23 is firmly bonded, and there is no waste that the foam heat insulating material 23 is discarded. And yield is improved.
[0048]
Further, not only the problem of yield but also the covering material 21 with the foam insulating material 23 attached to the square member 26 without the notch 26a is covered with the insulating foam member at the corner of the square member 26 with the outer surface member 21. 23, and when it is not necessary to project the face material to the outside of the square member as in the case of conventional heat insulation panels for roofs, just cut off the face material together with the foam insulation material protruding from the cutter etc. Although it is good, when the protrusion part 21a of the face material 21 for the seal | sticker at the time of attachment is required like the heat insulation panel 20 for roofs of this invention, it cannot respond with the conventional continuous manufacturing method, and this roof The manufacturing method of the thermal insulation panel 20 for a vehicle becomes very effective.
[0049]
【The invention's effect】
As described above in detail with the embodiment , according to the mounting structure for a roof heat insulation panel according to claim 1 of the present invention, the both ends on the sheet-like face material are notched on the inner face material side. This is because the square material that formed the part was placed and the protrusions were provided at both edges of the face material of the heat insulation panel filled with foam insulation, and bent along the outer side surface of the square material to reach the upper surface. When roof insulation panels are mounted side by side and mounted together as a roof frame or a shaft frame, the side surfaces of the square members are abutted together, and the surface members are overlapped with each other, projecting from between the square members onto the upper surface of one of the square members The joint portion can be sealed and attached with a face material, and the strength of the joint with the foamed heat insulating material can be improved by the cutout portion of the square member.
[0050]
In addition, in the roof heat insulation panel mounting structure in which the protrusions of the face material are provided on the outside of the square member , when the foam insulation protrudes outside the square member, the joint interval when the face material is folded to seal the joint part. However, the sealing becomes insufficient. However, the notched portion formed in the square member prevents the foamed heat insulating material from protruding to the outside of the square member, so that the roof insulation panel can be attached without causing any problems during the installation .
[0051]
Moreover, according to the mounting structure of the heat insulation panel for roof of Claim 2 of this invention, while making the height of a foam heat insulating material lower than the height of a square, the height of a notch part was made lower than the height of a foam heat insulating material. Therefore, it is possible to form a ventilation space without a heat insulation defect on the surface side of the foamed heat insulating material at the same time as improving the joining strength by increasing the contact area by the notch.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a roof heat insulation panel used in an embodiment of a roof heat insulation panel mounting structure according to the present invention.
FIG. 2 is a partially enlarged view of a roof heat insulation panel used in an embodiment of a roof heat insulation panel mounting structure according to the present invention.
FIG. 3 is an enlarged view of a roof mounting state according to an embodiment of the roof heat insulating panel mounting structure of the present invention.
FIG. 4 is a side view of a method for manufacturing a roof heat insulation panel used in an embodiment of a roof heat insulation panel mounting structure according to the present invention.
FIG. 5 is a cross-sectional view taken along arrows AA, BB, and CC in FIG. 4 of the method for manufacturing a heat insulating panel for roof used in an embodiment of the mounting structure for a heat insulating panel for roof according to the present invention. FIG.
FIG. 6 is an external perspective view of a conventional heat insulation panel for a roof.
FIGS. 7A and 7B are a side view and a partially enlarged view of a state in which a conventional heat insulating panel for roof is attached to a roof.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 5 Frame assembly 6 Base plate 10 Roof heat insulation panel 11 Face material 11a Protrusion part 12 Square material 12a Outer side surface 12b Upper surface 12c Notch part 13 Foam heat insulation material 14 Temporary connection material 20 Roof heat insulation panel 21 Face material 21a Protrusion part 22 Endless type | mold Member 23 Insulated foam material 24 Injection nozzle 25 Conveyor 26 Square material 26a Notch

Claims

A structure for mounting a thermal insulation panel for a roof,
The roof heat insulating panel is provided with a protruding portion having a length that can be fixed by placing a square member on a sheet-like surface member, and bending the two ends of the surface member along the outer surface of the square member on the upper surface. Forming opposite notches on the inner face material side of the square member disposed at both ends of the face member, and filling and foaming a foam heat insulating material on the face member between the square members,
With the face material of the roof insulation panel facing down, the square member is also used as a roof shaft assembly, or attached to the shaft assembly with the side surfaces butted against each other, and the projecting portion of the adjacent heat insulation panel surface material A heat insulating panel for a roof characterized by being formed by projecting upward along the outer side surfaces of these adjacent square members stacked on top of each other, fixed on one of the square members, and fixing a base plate on these square members Mounting structure.

2. The roof heat insulating panel mounting structure according to claim 1, wherein the foam heat insulating material is made lower than a height of the square member, and a height of the notch is made lower than a height of the foam heat insulating material .