JP3967988B2 - Roof base panel and roof base structure - Google Patents

Roof base panel and roof base structure Download PDF

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Publication number
JP3967988B2
JP3967988B2 JP2002273969A JP2002273969A JP3967988B2 JP 3967988 B2 JP3967988 B2 JP 3967988B2 JP 2002273969 A JP2002273969 A JP 2002273969A JP 2002273969 A JP2002273969 A JP 2002273969A JP 3967988 B2 JP3967988 B2 JP 3967988B2
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Japan
Prior art keywords
roof
plate
panel
base panel
roof base
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JP2004108068A (en
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昌司 後藤
俊昭 太田
泰久 増谷
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Nippon Steel Coated Sheet Corp
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Nippon Steel Coated Sheet Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、瓦等の屋根材を葺設するための野地板として用いられる屋根下地用パネル及びこれを用いた屋根下地構造に関するものである。
【0002】
【従来の技術】
従来より、合板等からなる上板と下板との間に断熱材を設けたパネルを野地板として屋根構造材に載設して屋根下地を形成することが行なわれており、このような屋根下地の上に屋根材を葺設することにより建物の屋根を形成している(例えば、特許文献1参照。)。
【0003】
【特許文献1】
特開2000−320086号公報(第2頁、特許請求の範囲)
【0004】
【発明が解決しようとする課題】
上記の特許文献1に記載の屋根下地用パネルでは、上板と下板として合板等の木板を用いているが、この場合、長尺な屋根下地用パネルを連続的に大量に製造することが難しく、また、重くなって施工性が低いものである。そこで、二枚の金属板の間に断熱材を充填して形成されるパネルを屋根下地用パネルとして用いることが考えられている。この場合は、長尺な二枚の金属板を長手方向に送りつつ断熱材を金属板間に充填していくことによって長尺な屋根下地用パネルを連続的に大量に製造することができ、生産性を向上することができるものであった。また、金属板を上板と下板として用いることによって、軽量で曲げ強度等の大きい屋根下地用パネルを形成することができ、このために、屋根下地用パネルを載設して支持するための母屋や垂木等の屋根構造材を狭ピッチで設ける必要がなくなり、多数本の屋根構造材が不要となってコストを削減することができるものであった。しかも、一枚の屋根下地用パネルを長尺に形成することができるので、屋根構造材に載設する屋根下地用パネルの枚数を少なくすることができ、屋根下地用パネルの施工性が向上するものであった。
【0005】
しかし、屋根構造材が木製の場合にはその腐食を防止するため等の目的で防腐剤等の薬剤が使用されていると共に木自身に木酢等の成分が含まれているために、屋根構造材に屋根下地用パネルを載設した際に屋根構造材と直接接触する金属板が上記の防腐剤等の薬剤や木の成分などの作用を受けて腐食するという問題があった。
【0006】
本発明は上記の点に鑑みてなされたものであり、木製の屋根構造材に含まれている薬剤や成分による腐食を低減することができる屋根下地用パネル及び屋根下地構造を提供することを目的とするものである。
【0007】
【課題を解決するための手段】
本発明の請求項1に係る屋根下地用パネルAは、母屋などの屋根構造材1に野地板2として載設される屋根下地用パネルにおいて、金属製の表面板3と裏面板4の間に断熱材5を充填すると共に木製の屋根構造材1と裏面板4との間に介在させるための腐食防止層6を裏面板4の表面に設けて成ることを特徴とするものであり、屋根構造材1に屋根下地用パネルAを載設した際に、屋根構造材1と屋根下地用パネルAの裏面板4との間に腐食防止層6を介在させて屋根構造材1と裏面板4とを直接接触させないようにすることができ、木製の屋根構造材1に含まれる防腐剤等の薬剤が腐食防止層6により裏面板4に作用しにくくなって屋根構造材1に含まれている薬剤や木の成分による裏面板4の腐食を低減することができるものである。
【0008】
また、本発明の請求項2に係る屋根下地用パネルAは、請求項1に加えて、表面板3の表面に防滑処理を施して成ることを特徴とするものであり、屋根材7を屋根下地用パネルAの上に敷設する際などに表面板3の表面に作業者が載っても滑りにくくすることができ、施工性及び安全性を向上させることができるものである。
【0009】
本発明の請求項3に係る屋根下地構造は、金属製の表面板3と裏面板4の間に断熱材5を充填して屋根下地用パネルAを形成し、この屋根下地用パネルAを母屋などの屋根構造材1に野地板2として載設すると共に木製の屋根構造材1と屋根下地用パネルAの裏面板4との間に腐食防止層6を介在させて成ることを特徴とするものであり、屋根構造材1と屋根下地用パネルAの裏面板4との間に腐食防止層6を介在させて屋根構造材1と裏面板4とを直接接触させないようにすることができ、木製の屋根構造材1に含まれる防腐剤等の薬剤が腐食防止層6により裏面板4に作用しにくくなって屋根構造材1に含まれている薬剤や木の成分による裏面板4の腐食を低減することができるものである。
【0010】
また、本発明の請求項4に係る屋根下地構造は、請求項3に加えて、屋根下地用パネルAの裏面に腐食防止層6を設けて成ることを特徴とするものであり、屋根下地用パネルAの施工と同時に屋根構造材1と屋根下地用パネルAの間に腐食防止層6を介在させることができ、屋根構造材1と屋根下地用パネルAの間に腐食防止層6を介在させやすくなって屋根下地用パネルAの施工性を向上させることができるものである。
【0011】
また、本発明の請求項5に係る屋根下地構造は、請求項3又は4に加えて、屋根下地用パネルAの表面に防滑処理を施して成ることを特徴とするものであり、屋根材7を屋根下地用パネルAの上に敷設する際などに、屋根下地用パネルAの表面に作業者が載っても滑りにくくすることができ、施工性及び安全性を向上させることができるものである。
【0012】
【発明の実施の形態】
以下、本発明の実施の形態を説明する。
【0013】
本発明の屋根下地用パネルAは、金属製の表面板3と裏面板4の間に断熱材5を充填すると共に断熱材5を表面板3と裏面板4に接着して一体化することによりサンドイッチパネルとして形成することができる。また、本発明の屋根下地用パネルAは従来の木製の野地板よりも一枚あたりの面積を大きく形成するものであって、例えば、一辺の長さを0.5〜10mにすることができる。
【0014】
このような屋根下地用パネルAを野地板2として用いることにより断熱性の高い屋根下地を形成することができ、また、木製の野地板や合板等の木板を表裏面板として用いたパネルよりも単位面積当たりの曲げ強度等の高い屋根下地用パネルAを軽量に形成することにより、母屋や垂木などの屋根構造材1を狭ピッチで設ける必要がなくなり、さらに、木製の野地板よりも一枚あたりの面積が大きい屋根下地用パネルAを形成することにより多数枚の屋根下地用パネルAを用いる必要がなくなり、断熱性能の高い屋根を安価に作業性よく形成することができるものである。
【0015】
表面板3と裏面板4としては従来から壁パネルや屋根パネルに使用される金属板をそのまま用いることができ、例えば、鉄板、鋼板、亜鉛めっき鋼板、アルミニウムめっき鋼板、アルミニウム−亜鉛めっき鋼板などを用いることができる。また、表面板3と裏面板4の厚みは屋根下地用パネルAの曲げ強度等の物性などを考慮して0.3〜0.8mmにするのが好ましい。
【0016】
断熱材5としては従来から壁パネルや屋根パネルに使用されるものをそのまま用いることができ、例えば、密度30〜200kg/mのグラスウール、ロックウール、ウレタンフォーム、フェノールフォームなどを用いることができる。また、断熱材5の厚みは屋根下地用パネルAの曲げ強度や断熱性能等の物性などを考慮して15〜100mmにするのが好ましい。
【0017】
また、本発明の屋根下地用パネルAの上端(棟側の端部)と下端(軒側の端部)の一方には嵌合凸部20が形成されていると共に屋根下地用パネルAの上端と下端の他方には嵌合凹部21が形成されており、嵌合凸部20と嵌合凹部21を嵌合することにより隣接する屋根下地用パネルA、Aが接続可能に形成されている。
【0018】
また、本発明の屋根下地用パネルAの表面、すなわち、表面板3の断熱材5と反対側の表面には防滑処理を施すのが好ましい。防滑処理としては表面板3の上記表面にエンボス加工やサンドブラスト加工などの機械的処理を施したり、あるいは表面板3の上記表面に塗膜を形成したりして粗面化層23を形成するものである。防滑処理として塗膜を用いる場合は、ベース塗料に骨材を配合して調製される骨材入り塗料を表面板3の上記表面に塗布して乾燥硬化することにより、ベース塗料で形成される塗膜の表面に骨材が露出して粗面となった粗面化層23を形成するものである。すなわち、ベース塗料は骨材を表面板の表面に接着して保持するために用いられるものであり、このために、ベース塗料の代わりに、バインダーや接着剤等で表面板3の上記表面に骨材を接着して粗面化層23を形成するようにしてもよい。
【0019】
骨材入り塗料に用いるベース塗料としては従来から建築用に用いられているものをそのまま使用することができ、例えば、ポリエステル樹脂系塗料やエポキシ樹脂系塗料や塩化ビニル樹脂系塗料などを例示することができる。また、骨材としては炭酸カルシウムや硫酸バリウム等の無機粉粒体、アクリルビーズやナイロンビーズなどの樹脂粒体、ガラス繊維など繊維体などを一種または二種類以上組み合わせて用いることができる。無機粉粒体を用いる場合は粒径が15〜5000μmのものを用いることができる。また、樹脂粒体を用いる場合は粒径が5〜500μmのものを用いることができる。さらに、繊維体を用いる場合は長さ10〜5000μm、直径5〜100μmのものを用いることができる。また、骨材の配合量は塗料や骨材の種類等により適宜設定すればよいが、例えば、骨材入り塗料の全量に対して0.1〜60重量%の骨材を配合するのが好ましい。また、骨材入り塗料により形成される塗膜の厚みはベース塗料や骨材の種類等により適宜設定すればよいが、例えば、20〜40μmに設定することができる。
【0020】
本発明の屋根下地用パネルAを木製の屋根構造材1に載設する場合を考慮して、屋根下地用パネルAの裏面、すなわち、裏面板4の断熱材5と反対側の表面(屋根構造材1側の面)に腐食防止層6を設けるものであり、この腐食防止層6により屋根構造材1に裏面板4を直接接触させないようにして木製の屋根構造材1に含まれている防腐剤等の薬剤や木酢等の木の成分が裏面板4に作用しにくくすることができ、薬剤による裏面板4の腐食が発生しにくくなるものである。
【0021】
腐食防止層6は耐候性や耐薬品性などに優れるものであって、裏面板4の表面に合成樹脂製のフィルムを貼着したり塗膜を設けたりして形成することができる。腐食防止層6として用いる合成樹脂製のフィルムとしては、ポリエチレン系フィルムやポリプロピレン系フィルムなどのポリオレフィン系フィルム等を用いることができ、具体的には、日東電工(株)製の「SPV−A−360」や日立化成工業(株)製の「ヒタレック粘着フィルムAタイプ」などを例示することができる。また、腐食防止層6として用いる塗膜は塩化ビニル樹脂系塗料を裏面板4の表面に塗布して形成することができ、具体的には、日本ファインコーティングス(株)製の「ビニゾール」などを例示することができる。腐食防止層6の厚みは5〜200μmであることが好ましい。また、腐食防止層6は裏面板4の表面の全面に亘って設けても良いが、屋根構造材1の位置に対応させて裏面板4の表面に部分的に腐食防止層6を設けても良い。
【0022】
本発明の屋根下地構造は、上記の複数枚の屋根下地用パネルAを屋根構造材1の上に載設することによって形成することができる。この時、屋根下地用パネルAの裏面板4を屋根構造材1の表面(上面)に接触させるようにするが、腐食防止層6を設けている場合は裏面板4と屋根構造材1の間に腐食防止層6を介在させるようにする。また、複数枚の屋根下地用パネルAは屋根勾配と略平行な方向(軒棟方向)に並べて載設されるが、軒棟方向に隣接する二つの屋根下地用パネルA、Aにおいて、一方の屋根下地用パネルの嵌合凸部20(あるいは嵌合凹部21)と他方の屋根下地用パネルAの嵌合凹部21(あるいは嵌合凸部20)とを嵌合することにより上記の二つの屋根下地用パネルA、Aを接続するようにする。さらに、屋根下地用パネルAの表面から屋根構造材1にまでドリルネジ等の固定具25を打入することによって屋根下地用パネルAを屋根構造材1に固定する。このようにして屋根下地用パネルAを野地板2として用いた屋根下地を形成することができる。
【0023】
上記のように形成される屋根下地に屋根材7を敷設して屋根を形成するにあたっては次のようにして行なう。まず、屋根構造材1の軒側端部に断面略L字状の鼻かくし部材26を取り付ける。次に、載設された屋根下地用パネルA及び鼻かくし部材26の表面の全面に亘ってアスファルトルーフィングなどのルーフィング材27を敷設する。次に、ルーフィング材27の表面に複数本の桟材28を配置し、桟材28の表面から屋根下地用パネルAを貫通して屋根構造材1にまでドリルビス等の固定具29を打入することによって、複数本の桟材28を屋根構造材1に取り付ける。桟材28は軒棟方向と直交する方向に長く形成されるものであり、所定の間隔を介して軒棟方向に並べて取り付けられるものである。
【0024】
次に、屋根下地用パネルA及びルーフィング材27の表面側に複数枚の屋根材7を敷設する。屋根材7は平板状の本体部7aと、本体部7aの上部に裏面側に突出する係止部7bとを有して断面略L字状に形成されるものであり、係止部7bを上記桟材28に係止することによって屋根材7の上部(棟側部)が桟材28に係止されて取り付けられるものである。また、屋根材7の下部(軒側部)はその屋根材7よりも下側(軒側)に敷設された屋根材7の表面に載置されるものである。さらに、最も軒側に敷設される屋根材7である軒側屋根材30は鼻かくし部材26の表面に設けた支持桟31により支持されており、また、軒側屋根材30の下端(軒側端部)には裏面側に突出する軒片32が突設されている。このようにして本発明の屋根下地に複数枚の屋根材7を軒棟方向に並べて敷設することによって屋根を形成することができる。
【0025】
尚、上記では腐食防止層6を屋根下地用パネルAの裏面に設けたものを例示したが、これに限らず、腐食防止層6は屋根構造材1の表面に形成してもよく、この場合、ブチルゴム系などの合成樹脂製の粘着テープなどを屋根構造材1の表面に貼り付けて腐食防止層6を形成することができる。
【0026】
次に、防滑処理に用いる塗料を変えることにより表面板の防滑性能(耐滑り性)を評価した。
【0027】
[防滑性能評価1]
(防滑処理▲1▼)
骨材入り塗料を用いた。この塗料のベース塗料としては中加工のポリエステル樹脂塗料(日本ファインコーティングス(株)製の「FLC100HQ」)を用いた。また、骨材としては平均粒径150μmの硫酸バリウムと平均粒径60μmのアクリルビーズとを用いた。骨材の配合量は骨材入り塗料の全量に対して25重量%としたが、硫酸バリウムとアクリルビーズの混合比は1:1とした。そして、厚み0.35mmの鋼板で形成される表面板3の表面に上記骨材入り塗料を28g/mの塗布量で塗布して乾燥硬化させることにより、厚み20μmの塗膜を粗面化層23として形成した。
【0028】
(防滑処理▲2▼)
組成の異なる他の骨材入り塗料を用いた以外は、防滑処理▲1▼と同様にした。ベース塗料としては低コストのポリエステル樹脂塗料(日本ファインコーティングス(株)製の「NSC860」)を用いた。また、骨材としては平均直径13μmで平均長さ35μmのガラス繊維(日本硝子(株)製の「REV1」)を用いた。骨材の配合量は骨材入り塗料の全量に対して21重量%とした。そして、表面板3の表面に上記骨材入り塗料を10g/mの塗布量で塗布して乾燥硬化させることにより、厚み3μmの塗膜を粗面化層23として形成した。
【0029】
(防滑処理▲3▼)
組成の異なる他の骨材入り塗料を用いた以外は、防滑処理▲1▼と同様にした。ベース塗料としては変性ポリエステル樹脂塗料(日本ファインコーティングス(株)製の「フレキコートプライマー」)を用いた。また、骨材としては防滑処理▲2▼と同様のガラス繊維を用いた。骨材の配合量は骨材入り塗料の全量に対して10重量%とした。そして、表面板3の表面に上記骨材入り塗料を10g/mの塗布量で塗布して乾燥硬化させることにより、厚み7μmの塗膜を粗面化層23として形成した。
【0030】
(防滑処理▲4▼)
組成の異なる他の骨材入り塗料を用いた以外は、防滑処理▲1▼と同様にした。ベース塗料としては縮み塗料(ちりめん塗料)であるポリエステル樹脂塗料(日本ファインコーティングス(株)製の「ニッペシルキーR2」)を用いた。また、骨材としては防滑処理▲2▼と同様のガラス繊維を用いた。骨材の配合量は骨材入り塗料の全量に対して5重量%とした。そして、表面板3の表面に上記骨材入り塗料を27g/mの塗布量で塗布して乾燥硬化させることにより、厚み22μmの塗膜を粗面化層23として形成した。
【0031】
(防滑処理▲5▼)
組成の異なる他の骨材入り塗料を用いた以外は、防滑処理▲1▼と同様にした。ベース塗料としては防滑処理▲2▼と同様のポリエステル樹脂塗料を用いた。また、骨材としては平均粒径30μmのナイロンビーズを用いた。骨材の配合量は骨材入り塗料の全量に対して6重量%とした。そして、表面板3の表面に上記骨材入り塗料を7g/mの塗布量で塗布して乾燥硬化させることにより、厚み4μmの塗膜を粗面化層23として形成した。
【0032】
(防滑処理▲6▼)
組成の異なる他の骨材入り塗料を用いた以外は、防滑処理▲1▼と同様にした。ベース塗料としてはエポキシ樹脂塗料(日本ファインコーティングス(株)製の「NSC840」)を用いた。また、骨材としては防滑処理▲5▼と同様のナイロンビーズを用いた。骨材の配合量は骨材入り塗料の全量に対して6重量%とした。そして、表面板3の表面に上記骨材入り塗料を8g/mの塗布量で塗布して乾燥硬化させることにより、厚み5μmの塗膜を粗面化層23として形成した。
【0033】
(防滑処理▲7▼)
骨材入り塗料を用いなかった以外は、防滑処理▲1▼と同様にした。塗料としてはポリエステル樹脂塗料(日本油脂(株)製の「MX110F」)を用いた。そして、表面板3の表面に上記塗料を26g/mの塗布量で塗布して乾燥硬化させることにより、厚み16μmの塗膜を粗面化層23として形成した。
【0034】
上記の防滑処理▲1▼〜▲7▼で処理した表面板3について防滑性能を評価した。この評価試験としては静滑り試験を行なった。この静滑り試験は、図4に示すように、表面板3を大きさ30×30mmに切断して試験片40を形成し、大きさ40×50mmの対面板41の上面に上記試験片40を載置すると共にこの試験片40の上に50gのおもり42を載置し、この状態で対面板41を水平面に対して徐々に傾けるようにした。そして、試験片40が対面板41に対して滑り出した時の角度を求めた。試験片40はその粗面化層23が対面板41に接触するようにして載置した。また、対面板41としては合成ゴム板及び軟質プラスチック板(メラミン樹脂板)を用いた。また、上記の静滑り試験は対面板41の上面が乾燥した状態と霧吹きで水を吹き付けた水濡れ状態とで行なった。結果を表1に示す。尚、表1中に「40以上」とあるのは、上記の測定角度が40°〜70°位までで非常にバラツキが大きいものについて記載した。また、メラミン樹脂板を試験片40として用いた場合も表1に併記した。
【0035】
【表1】

Figure 0003967988
【0036】
[防滑性能評価2]
(パネル▲1▼)
上記防滑処理▲1▼で得られた粗面化層23を有する表面板3と裏面板4との間に断熱材5を充填することによって、35×600×1820mmの大きさの試験用の屋根下地用パネルAを形成した。裏面板4は表面板3と同様の鋼板を用いた。また、断熱材5としては密度40kg/mの硬質ウレタンフォームを用いた。
【0037】
(パネル▲2▼)
上記防滑処理▲2▼で得られた粗面化層23を有する表面板3を用いた以外はパネル▲1▼と同様にして試験用の屋根下地用パネルAを形成した。
【0038】
(パネル▲3▼)
上記防滑処理▲3▼で得られた粗面化層23を有する表面板3を用いた以外はパネル▲1▼と同様にして試験用の屋根下地用パネルAを形成した。
【0039】
(パネル▲4▼)
上記防滑処理▲4▼で得られた粗面化層23を有する表面板3を用いた以外はパネル▲1▼と同様にして試験用の屋根下地用パネルAを形成した。
【0040】
(パネル▲5▼)
上記防滑処理▲5▼で得られた粗面化層23を有する表面板3を用いた以外はパネル▲1▼と同様にして試験用の屋根下地用パネルAを形成した。
【0041】
(パネル▲6▼)
上記防滑処理▲6▼で得られた粗面化層23を有する表面板3を用いた以外はパネル▲1▼と同様にして試験用の屋根下地用パネルAを形成した。
【0042】
(パネル▲7▼)
上記防滑処理▲7▼で得られた粗面化層23を有する表面板3を用いた以外はパネル▲1▼と同様にして試験用の屋根下地用パネルAを形成した。
【0043】
上記のパネル▲1▼〜▲7▼について防滑性能を評価した。この評価試験は傾斜させた屋根下地用パネルの表面に実際に人が立って感覚的に滑り度合いを評価した。図5に示すように、地上に設置した支持台45に屋根下地用パネルAの一端を支持させるようにして屋根下地用パネルを傾斜させた。屋根下地用パネルの勾配は長さa、bの割合がb/a=5/10あるいは6/10あるいは7/10となるように調整した。また、屋根下地用パネルに立つ人が安全靴を着用した状態と安全靴を着用していない状態(靴下の状態)の二つの状態で滑り度合いを評価した。そして、全く滑らないに○を、滑りにくいに○△を、やや滑るに△を、滑りやすいに△×を、滑るに×を、非常に良く滑るに××をそれぞれ付した。結果を表2に示す。
【0044】
【表2】
Figure 0003967988
【0045】
そして、上記の[防滑性能評価1][防滑性能評価2]から考察すると、防滑処理としては上記防滑処理▲1▼が最も好ましく、防滑処理▲1▼の防滑性能は砂入り塗材で塗膜を形成した場合や軽量コンクリート板(ALC)と同等であり、実用上特に問題はない。また、防滑処理▲2▼▲3▼は防滑処理▲1▼の次に好ましく、防滑処理▲2▼▲3▼の防滑性能は防滑処理▲1▼よりもやや劣るものの、タイルや合板(木製の野地板)と同等であり、実用上問題なく使用することができる。さらに、防滑処理▲4▼▲5▼はコンクリート板や石板やプラスチック板よりも防滑性能が勝るものの、実用上の性能はやや低いので用いない方が好ましい。また、防滑処理▲6▼▲7▼はコンクリート板や石板やプラスチック板と同等の性能しか得られないので用いない方が好ましい。
【0046】
次に、腐食防止処理として各種の腐食防止層を用いることにより裏面板の防食性能(耐腐食性)を評価した。
【0047】
(腐食防止処理▲1▼)
裏面板4の表面に厚さ0.07mmのフィルム(日東電工(株)製の「SPV−A−360」)を貼着することにより腐食防止層6を形成した。裏面板4としては厚さ0.35mmの塗装亜鉛めっき鋼板を用いた。この塗装亜鉛めっき鋼板は鋼板の表面に厚み17μmの亜鉛めっきを施した後、この亜鉛めっき層の表面にポリエステル系樹脂塗料による塗膜を厚さ20μmで形成したものである。従って、腐食防止層6は裏面板4の上記塗膜の表面に形成されるものである。
【0048】
(腐食防止処理▲2▼)
裏面板4の表面に塩化ビニル樹脂系塗料(日本ファインコーティングス(株)製の「ビニゾール」)を塗布することにより厚さ200μmの塗膜を腐食防止層6として形成した。裏面板4としては厚さ0.35mmの鋼板を用いた。
【0049】
(腐食防止処理▲3▼)
腐食防止層6の厚みを100μmとした以外は腐食防止処理▲2▼と同様にした。
【0050】
(腐食防止処理▲4▼)
裏面板4として塗装ガルバリウム鋼板を用いた以外は腐食防止処理▲1▼と同様にした。この塗装ガルバリウム鋼板は鋼板の表面に厚み12μmのアルミニウム−亜鉛めっきを施した後、このアルミニウム−亜鉛めっき層の表面にポリエステル系樹脂塗料による塗膜を厚さ20μmで形成したものである。
【0051】
上記の腐食防止処理▲1▼〜▲4▼で処理した裏面板4について防食性能を評価した。この評価試験としては次のように行なった。まず、上記の裏面板4を大きさ50×100mmに切断して試験片を形成し、防腐剤で処理した木片(木材種は米栂)の外形に沿うように90°プレス機で試験片の端部から10mmの部分を曲げ加工し、この後、試験片と木片とをステンレス鋼製のビスにて2箇所固定した。この時、腐食防止層6を木片に接触させるようにした。次に、試験片と木片との組み合わせ体を密封容器に純水2.5リットルと共に入れ、蓋をして乾燥機にセットした。そして、乾燥機にて湿度98%以上、温度70℃の条件を168時間(7日間)維持し、これにより、試験片(裏面板)に生じた腐食の度合いを評価した。防腐剤としては、銅・アルキルアンモニウム化合物系(銅系)であるACQと、銅・ほう素・アゾール化合物系(銅系)であるタナリスCUAZと、ほう素・アルキルアンモニウム化合物系(非銅系)であるBAACとをそれぞれ用いた。
【0052】
試験片の腐食は鋼板から塗膜や腐食防止層6が界面剥離(ブリスター)していることであり、この腐食が全く生じなかったものに◎を、腐食がほとんど生じなかったものに○を、試験片の端部のみに腐食が生じたものに○△を、試験片の全体に実用上問題ない程度の腐食が生じたものに△を、試験片の端部のみに実用上問題となる程度の腐食が生じたものに△×を、試験片の全体に実用上問題となる程度の腐食が生じたものに×を、顕著な腐食が生じたものに××をそれぞれ付した。結果を表3に示す。尚、表3中に「無処理」とあるのは、防腐剤で処理していない木片を用いた場合の試験結果である。また、「総合評価」とあるのは、各防腐剤に対する防腐性能を総合した評価である。また、比較のために、腐食防止層6を形成していない腐食防止処理▲1▼▲4▼と同様の塗装ガルバリウム鋼板と塗装亜鉛めっき鋼板についても腐食性能を併記した。
【0053】
【表3】
Figure 0003967988
【0054】
表3から明らかなように、腐食防止処理▲1▼〜▲4▼を施した試験片(裏面板)は腐食防止処理を施していないものよりも耐食性が向上した。
【0055】
【発明の効果】
上記のように本発明の請求項1の発明は、母屋などの屋根構造材に野地板として載設される屋根下地用パネルにおいて、金属製の表面板と裏面板の間に断熱材を充填すると共に木製の屋根構造材と裏面板との間に介在させるための腐食防止層を裏面板の表面に設けて成ることを特徴とするものであり、屋根構造材に屋根下地用パネルを載設した際に、屋根構造材と屋根下地用パネルの裏面板との間に腐食防止層を介在させて屋根構造材と裏面板とを直接接触させないようにすることができ、木製の屋根構造材に含まれる防腐剤等の薬剤や木の成分が腐食防止層により裏面板に作用しにくくなって屋根構造材に含まれている薬剤や木の成分による腐食を低減することができるものである。
【0056】
また、本発明の請求項2の発明は、表面板の表面に防滑処理を施して成ることを特徴とするものであり、屋根材を屋根下地用パネルの上に敷設する際などに表面板の表面に作業者が載っても滑りにくくすることができ、施工性及び安全性を向上させることができるものである。
【0057】
本発明の請求項3の発明は、金属製の表面板と裏面板の間に断熱材を充填して屋根下地用パネルを形成し、この屋根下地用パネルを母屋などの屋根構造材に野地板として載設すると共に木製の屋根構造材と屋根下地用パネルの裏面板との間に腐食防止層を介在させて成ることを特徴とするものであり、屋根構造材と屋根下地用パネルの裏面板との間に腐食防止層を介在させて屋根構造材と裏面板とを直接接触させないようにすることができ、木製の屋根構造材に含まれる防腐剤等の薬剤や木酢等の木の成分が腐食防止層により裏面板に作用しにくくなって屋根構造材に含まれている薬剤や木の成分による腐食を低減することができるものである。
【0058】
また、本発明の請求項4の発明は、屋根下地用パネルの裏面に腐食防止層を設けて成ることを特徴とするものであり、屋根下地用パネルの施工と同時に屋根構造材と屋根下地用パネルの間に腐食防止層を介在させることができ、屋根構造材と屋根下地用パネルの間に腐食防止層を介在させやすくなって、屋根下地用パネルの施工性を向上させることができるものである。
【0059】
また、本発明の請求項5の発明は、屋根下地用パネルの表面に防滑処理を施して成ることを特徴とするものであり、屋根材を屋根下地用パネルの上に敷設する際などに、屋根下地用パネルの表面に作業者が載っても滑りにくくすることができ、施工性及び安全性を向上させることができるものである。
【図面の簡単な説明】
【図1】本発明の実施の形態の一例を示す縦断面図である。
【図2】同上の横断面図である。
【図3】同上の屋根下地用パネルの一部を示す断面図である。
【図4】防滑性能評価1における試験方法を示す概略図である。
【図5】防滑性能評価2における試験方法を示す概略図である。
【符号の説明】
1 屋根構造材
2 野地板
3 表面板
4 裏面板
5 断熱材
6 腐食防止層
7 屋根材
A 屋根下地用パネル[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a roof base panel used as a base plate for laying roof materials such as tiles and a roof base structure using the same.
[0002]
[Prior art]
Conventionally, a roof base is formed by placing a panel provided with a heat insulating material between an upper plate and a lower plate made of plywood or the like on a roof structure material as a base plate. A roof of a building is formed by laying a roofing material on the base (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
JP 2000-320086 (second page, claims)
[0004]
[Problems to be solved by the invention]
In the roof foundation panel described in Patent Document 1, wood boards such as plywood are used as the upper and lower boards. In this case, it is possible to continuously produce a large number of long roof foundation panels. Difficult, heavy and poor workability. Therefore, it is considered that a panel formed by filling a heat insulating material between two metal plates is used as a roof base panel. In this case, it is possible to continuously produce a large number of long roof foundation panels by feeding the insulating material between the metal plates while feeding the two long metal plates in the longitudinal direction, Productivity could be improved. In addition, by using metal plates as the upper and lower plates, it is possible to form a roof base panel that is lightweight and has high bending strength, etc. For this purpose, the roof base panel is placed and supported. It is no longer necessary to provide roof structure materials such as purlins and rafters at a narrow pitch, and a large number of roof structure materials are not required, and costs can be reduced. In addition, since a single roof base panel can be formed long, the number of roof base panels placed on the roof structure material can be reduced, and the workability of the roof base panel is improved. It was a thing.
[0005]
However, when the roof structure material is wooden, chemicals such as preservatives are used for the purpose of preventing the corrosion and the tree itself contains components such as wood vinegar. When the roof base panel is mounted on the metal plate, there is a problem that the metal plate that is in direct contact with the roof structure material is corroded by the action of the above-described preservative and other chemicals and wood components.
[0006]
The present invention has been made in view of the above points, Wooden An object of the present invention is to provide a roof base panel and a roof base structure capable of reducing corrosion due to chemicals and components contained in the roof structure material.
[0007]
[Means for Solving the Problems]
The roof base panel A according to claim 1 of the present invention is a roof base panel placed as a base plate 2 on a roof structure material 1 such as a main building, and between a metal front plate 3 and a back plate 4. Fill with insulation 5 A corrosion prevention layer 6 for interposing between the wooden roof structure material 1 and the back plate 4 is provided on the surface of the back plate 4. When the roof base panel A is placed on the roof structure material 1, the corrosion prevention layer is provided between the roof structure material 1 and the back plate 4 of the roof base panel A. 6 so that the roof structure material 1 and the back plate 4 are not in direct contact with each other, Wooden The anticorrosive agent or the like contained in the roof structure material 1 is less likely to act on the back plate 4 due to the corrosion prevention layer 6, thereby reducing the corrosion of the back plate 4 due to the chemical contained in the roof structure material 1 or the wood component. It is something that can be done.
[0008]
Further, the roof base panel A according to claim 2 of the present invention is characterized in that, in addition to claim 1, the surface of the surface plate 3 is subjected to anti-slip treatment, and the roof material 7 is applied to the roof. Even when an operator is placed on the surface of the surface plate 3 when laying on the base panel A, it is possible to make it difficult to slip, and to improve workability and safety.
[0009]
In the roof base structure according to claim 3 of the present invention, the roof base panel A is formed by filling the heat insulating material 5 between the metal front plate 3 and the back plate 4, and the roof base panel A is used as the main building. And so on as a base plate 2 on the roof structure material 1 Wooden Of roof structural material 1 and roof base panel A With back plate 4 The corrosion prevention layer 6 is interposed between the roof structure material 1 and the roof structure panel 1 with the corrosion prevention layer 6 interposed between the roof structure material 1 and the roof structure material 1. And the back plate 4 can be kept out of direct contact, Wooden The anticorrosive agent or the like contained in the roof structure material 1 is less likely to act on the back plate 4 due to the corrosion prevention layer 6, thereby reducing the corrosion of the back plate 4 due to the chemical contained in the roof structure material 1 or the wood component. It is something that can be done.
[0010]
Moreover, the roof base structure according to claim 4 of the present invention is characterized in that, in addition to claim 3, the roof base panel A is provided with a corrosion prevention layer 6 on the back surface thereof. Simultaneously with the panel A construction, the corrosion prevention layer 6 can be interposed between the roof structure material 1 and the roof base panel A, and the corrosion prevention layer 6 is interposed between the roof structure material 1 and the roof base panel A. It becomes easy to improve the workability of the roof base panel A.
[0011]
Further, the roof foundation structure according to claim 5 of the present invention is characterized in that, in addition to claim 3 or 4, the surface of the roof foundation panel A is subjected to anti-slip treatment, and the roof material 7 When laying on the roof foundation panel A, it is possible to make it difficult to slip even if an operator is placed on the surface of the roof foundation panel A, and to improve the workability and safety. .
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below.
[0013]
The roof base panel A of the present invention is obtained by filling the heat insulating material 5 between the metal front plate 3 and the back plate 4 and bonding the heat insulating material 5 to the front plate 3 and the back plate 4 and integrating them. Can be formed as a sandwich panel. Moreover, the panel A for roof foundations of the present invention is formed to have a larger area per sheet than a conventional wooden base plate, and for example, the length of one side can be set to 0.5 to 10 m. .
[0014]
By using such a roof base panel A as the base plate 2, it is possible to form a roof base with high thermal insulation, and more unit than a panel using a wooden base plate such as a wooden base plate or plywood as the front and back plates. By forming the roof base panel A with high bending strength per area, etc., it is not necessary to provide the roof structure materials 1 such as purlins and rafters at a narrow pitch, and more than one wooden baseboard. By forming the roof base panel A having a large area, it is not necessary to use a large number of roof base panels A, and a roof with high heat insulation performance can be formed inexpensively with good workability.
[0015]
As the front plate 3 and the back plate 4, metal plates conventionally used for wall panels and roof panels can be used as they are, for example, iron plates, steel plates, galvanized steel plates, aluminum plated steel plates, aluminum-galvanized steel plates, Can be used. Further, the thickness of the front plate 3 and the back plate 4 is preferably 0.3 to 0.8 mm in consideration of physical properties such as the bending strength of the roof base panel A.
[0016]
As the heat insulating material 5, what is conventionally used for a wall panel or a roof panel can be used as it is, for example, density 30-200 kg / m. 3 Glass wool, rock wool, urethane foam, phenol foam and the like can be used. The thickness of the heat insulating material 5 is preferably 15 to 100 mm in consideration of the physical properties such as the bending strength and heat insulating performance of the roof base panel A.
[0017]
In addition, a fitting projection 20 is formed on one of the upper end (end on the ridge side) and the lower end (end on the eaves side) of the roof base panel A of the present invention, and the upper end of the roof base panel A. A fitting recess 21 is formed on the other of the lower ends, and adjacent roof foundation panels A and A are formed so as to be connectable by fitting the fitting projection 20 and the fitting recess 21 together.
[0018]
Moreover, it is preferable to apply a non-slip treatment to the surface of the panel A for roof foundation of the present invention, that is, the surface opposite to the heat insulating material 5 of the surface plate 3. As the anti-slip treatment, the surface of the surface plate 3 is subjected to mechanical treatment such as embossing or sandblasting, or a coating film is formed on the surface of the surface plate 3 to form the roughened layer 23. It is. In the case of using a coating film as an anti-slip treatment, a coating containing aggregate prepared by blending an aggregate with the base coating is applied to the surface of the surface plate 3 and dried and cured, thereby forming a coating formed of the base coating. The roughened layer 23 is formed on the surface of the film by exposing the aggregate to a rough surface. That is, the base paint is used for adhering and holding the aggregate on the surface of the surface plate. For this purpose, instead of the base paint, a bone or an adhesive is used to bond the bone to the surface of the surface plate 3. The roughened layer 23 may be formed by bonding materials.
[0019]
As the base paint used for the aggregate-containing paint, those conventionally used for construction can be used as they are, for example, polyester resin paint, epoxy resin paint, vinyl chloride resin paint, etc. Can do. As the aggregate, inorganic powder particles such as calcium carbonate and barium sulfate, resin particles such as acrylic beads and nylon beads, and fiber materials such as glass fibers can be used singly or in combination. When using an inorganic granular material, one having a particle size of 15 to 5000 μm can be used. Moreover, when using a resin granule, a thing with a particle size of 5-500 micrometers can be used. Furthermore, when using a fiber body, the thing of length 10-5000 micrometers and a diameter 5-100 micrometers can be used. The amount of aggregate may be set as appropriate depending on the type of paint or aggregate, but for example, it is preferable to add 0.1 to 60% by weight of aggregate with respect to the total amount of the paint containing aggregate. . Moreover, what is necessary is just to set the thickness of the coating film formed with the coating material containing an aggregate suitably with the kind of base coating material, aggregate, etc., For example, it can set to 20-40 micrometers.
[0020]
Considering the case where the roof base panel A of the present invention is mounted on the wooden roof structure material 1, the back surface of the roof base panel A, that is, the surface opposite to the heat insulating material 5 of the back plate 4 (the roof structure). Corrosion prevention layer 6 is provided on the surface of the material 1 side, and the anticorrosion contained in the wooden roof structure material 1 so that the back plate 4 is not in direct contact with the roof structure material 1 by this corrosion prevention layer 6. It is possible to make it difficult for chemicals such as agents and wood components such as wood vinegar to act on the back plate 4, and corrosion of the back plate 4 due to the chemicals is difficult to occur.
[0021]
The corrosion prevention layer 6 is excellent in weather resistance, chemical resistance, and the like, and can be formed by sticking a synthetic resin film or providing a coating film on the surface of the back plate 4. The synthetic resin film used as the corrosion prevention layer 6 may be a polyolefin film such as a polyethylene film or a polypropylene film. Specifically, “SPV-A-” manufactured by Nitto Denko Corporation may be used. 360 ”and“ Hitarec adhesive film A type ”manufactured by Hitachi Chemical Co., Ltd. can be exemplified. Further, the coating film used as the corrosion prevention layer 6 can be formed by applying a vinyl chloride resin-based paint to the surface of the back plate 4, and specifically, “Vinizole” manufactured by Nippon Fine Coatings Co., Ltd. Can be illustrated. The thickness of the corrosion prevention layer 6 is preferably 5 to 200 μm. Further, the corrosion prevention layer 6 may be provided over the entire surface of the back plate 4, but the corrosion prevention layer 6 may be partially provided on the surface of the back plate 4 corresponding to the position of the roof structure material 1. good.
[0022]
The roof foundation structure of the present invention can be formed by placing the plurality of roof foundation panels A on the roof structure material 1. At this time, the back plate 4 of the roof base panel A is brought into contact with the surface (upper surface) of the roof structure material 1, but when the corrosion prevention layer 6 is provided, between the back plate 4 and the roof structure material 1. The anticorrosion layer 6 is interposed. The plurality of roof foundation panels A are placed side by side in a direction substantially parallel to the roof gradient (eave building direction). In the two roof foundation panels A and A adjacent to the eave building direction, By fitting the fitting convex part 20 (or fitting concave part 21) of the roof base panel with the fitting concave part 21 (or fitting convex part 20) of the other roof base panel A, the above two roofs are fitted. The base panels A and A are connected. Furthermore, the roof base panel A is fixed to the roof structure member 1 by driving a fixing tool 25 such as a drill screw from the surface of the roof base panel A to the roof structure member 1. In this manner, a roof base using the roof base panel A as the base plate 2 can be formed.
[0023]
The roof material 7 is laid on the roof base formed as described above to form a roof as follows. First, a nose comb member 26 having a substantially L-shaped cross section is attached to the eaves side end of the roof structural material 1. Next, a roofing material 27 such as asphalt roofing is laid on the entire surface of the mounted roof base panel A and the surface of the nose comb member 26. Next, a plurality of crosspieces 28 are arranged on the surface of the roofing material 27, and a fixture 29 such as a drill screw is driven from the surface of the crosspiece 28 to the roof structure panel 1 through the roof base panel A. Thus, a plurality of crosspieces 28 are attached to the roof structure material 1. The crosspiece 28 is formed long in a direction orthogonal to the eaves direction, and is mounted side by side in the eaves direction with a predetermined interval.
[0024]
Next, a plurality of roof materials 7 are laid on the surface side of the roof base panel A and the roofing material 27. The roofing material 7 has a flat plate-like main body portion 7a and a locking portion 7b protruding on the back side on the upper portion of the main body portion 7a, and is formed in a substantially L-shaped cross section. The top (ridge side) of the roofing material 7 is locked and attached to the crosspiece 28 by engaging with the crosspiece 28. Moreover, the lower part (eave side part) of the roofing material 7 is mounted on the surface of the roofing material 7 laid below the roofing material 7 (eave side). Furthermore, the eaves side roofing material 30 which is the roofing material 7 laid on the most eave side is supported by a support bar 31 provided on the surface of the nose barb member 26, and the lower end of the eaves side roofing material 30 (eave side) An eaves piece 32 projecting to the back side is projected from the end portion. In this way, a roof can be formed by laying a plurality of roof materials 7 side by side in the eave ridge direction on the roof base of the present invention.
[0025]
In the above description, the anticorrosion layer 6 is provided on the back surface of the roof base panel A. However, the present invention is not limited to this, and the anticorrosion layer 6 may be formed on the surface of the roof structural material 1. The corrosion prevention layer 6 can be formed by attaching an adhesive tape made of synthetic resin such as butyl rubber to the surface of the roof structure material 1.
[0026]
Next, the anti-slip performance (slip resistance) of the surface plate was evaluated by changing the paint used for the anti-slip treatment.
[0027]
[Non-slip performance evaluation 1]
(Anti-slip treatment (1))
Aggregate paint was used. As the base paint of this paint, a middle-processed polyester resin paint (“FLC100HQ” manufactured by Nippon Fine Coatings Co., Ltd.) was used. As the aggregate, barium sulfate having an average particle diameter of 150 μm and acrylic beads having an average particle diameter of 60 μm were used. The amount of aggregate was 25% by weight based on the total amount of the paint containing aggregate, but the mixing ratio of barium sulfate and acrylic beads was 1: 1. Then, the above aggregate-containing paint is applied to the surface of the surface plate 3 formed of a steel plate having a thickness of 0.35 mm at 28 g / m. 2 A coating film having a thickness of 20 μm was formed as the roughened layer 23 by applying and drying and curing at a coating amount.
[0028]
(Anti-slip treatment (2))
The procedure was the same as anti-slip treatment (1) except that another aggregate-containing paint having a different composition was used. As the base paint, a low-cost polyester resin paint (“NSC860” manufactured by Nippon Fine Coatings Co., Ltd.) was used. As the aggregate, glass fiber having an average diameter of 13 μm and an average length of 35 μm (“REV1” manufactured by Nippon Glass Co., Ltd.) was used. The blending amount of the aggregate was 21% by weight with respect to the total amount of the aggregate-containing paint. And the above-mentioned coating material with aggregate is 10 g / m on the surface of the surface plate 3 2 A coating film having a thickness of 3 μm was formed as the roughened layer 23 by applying and drying and curing at a coating amount.
[0029]
(Anti-slip treatment (3))
The procedure was the same as anti-slip treatment (1) except that another aggregate-containing paint having a different composition was used. As the base paint, a modified polyester resin paint (“Flexcoat Primer” manufactured by Nippon Fine Coatings Co., Ltd.) was used. As the aggregate, the same glass fiber as in the anti-slip treatment (2) was used. The amount of the aggregate was 10% by weight with respect to the total amount of the paint containing the aggregate. And the above-mentioned coating material with aggregate is 10 g / m on the surface of the surface plate 3 2 A coating film having a thickness of 7 μm was formed as the roughened layer 23 by applying and drying and curing at a coating amount.
[0030]
(Anti-slip treatment (4))
The procedure was the same as anti-slip treatment (1) except that another aggregate-containing paint having a different composition was used. As the base paint, a polyester resin paint (“Nippesilky R2” manufactured by Nippon Fine Coatings Co., Ltd.), which is a shrink paint (chirimen paint), was used. As the aggregate, the same glass fiber as in the anti-slip treatment (2) was used. The amount of the aggregate was 5% by weight with respect to the total amount of the paint containing the aggregate. Then, 27 g / m of the aggregate-containing paint is applied to the surface of the surface plate 3. 2 A coating film having a thickness of 22 μm was formed as the roughened layer 23 by coating with a coating amount of and drying and curing.
[0031]
(Anti-slip treatment (5))
The procedure was the same as anti-slip treatment (1) except that another aggregate-containing paint having a different composition was used. As the base paint, a polyester resin paint similar to the anti-slip treatment (2) was used. As the aggregate, nylon beads having an average particle size of 30 μm were used. The amount of the aggregate was 6% by weight with respect to the total amount of the aggregate-containing paint. And the above-mentioned paint containing aggregate is 7 g / m on the surface of the surface plate 3. 2 A coating film having a thickness of 4 μm was formed as the roughened layer 23 by applying and drying and curing at a coating amount.
[0032]
(Anti-slip treatment (6))
The procedure was the same as anti-slip treatment (1) except that another aggregate-containing paint having a different composition was used. An epoxy resin paint (“NSC840” manufactured by Nippon Fine Coatings Co., Ltd.) was used as the base paint. Further, as the aggregate, nylon beads similar to the anti-slip treatment (5) were used. The amount of the aggregate was 6% by weight with respect to the total amount of the aggregate-containing paint. And the above-mentioned aggregate-containing paint is applied to the surface of the surface plate 3 at 8 g / m. 2 A coating film having a thickness of 5 μm was formed as the roughened layer 23 by applying and drying and curing at a coating amount.
[0033]
(Anti-slip treatment (7))
The procedure was the same as anti-slip treatment (1) except that the aggregate-containing paint was not used. As the coating material, a polyester resin coating material (“MX110F” manufactured by NOF Corporation) was used. And the said coating material is 26 g / m on the surface of the surface board 3 2 A coating film having a thickness of 16 μm was formed as the roughened layer 23 by applying and drying and curing at a coating amount.
[0034]
The anti-slip performance of the surface plate 3 treated in the above anti-slip treatment (1) to (7) was evaluated. As this evaluation test, a static slip test was performed. As shown in FIG. 4, in the static slip test, the surface plate 3 is cut to a size of 30 × 30 mm to form a test piece 40, and the test piece 40 is placed on the upper surface of a facing plate 41 having a size of 40 × 50 mm. At the same time, a 50 g weight 42 was placed on the test piece 40, and the facing plate 41 was gradually inclined with respect to the horizontal plane in this state. And the angle when the test piece 40 started to slide with respect to the facing plate 41 was calculated | required. The test piece 40 was placed so that the roughened layer 23 was in contact with the facing plate 41. As the facing plate 41, a synthetic rubber plate and a soft plastic plate (melamine resin plate) were used. Moreover, said static slip test was done in the state where the upper surface of the facing plate 41 was dry, and the wet state where water was sprayed by spraying. The results are shown in Table 1. In Table 1, “40 or more” is described for the case where the measurement angle is about 40 ° to 70 ° and the variation is very large. The case where a melamine resin plate is used as the test piece 40 is also shown in Table 1.
[0035]
[Table 1]
Figure 0003967988
[0036]
[Anti-slip performance evaluation 2]
(Panel (1))
The test roof having a size of 35 × 600 × 1820 mm is obtained by filling the heat insulating material 5 between the front surface plate 3 and the rear surface plate 4 having the roughened layer 23 obtained in the anti-slip treatment (1). A base panel A was formed. The back plate 4 was a steel plate similar to the front plate 3. Moreover, as the heat insulating material 5, the density is 40 kg / m. 3 Rigid urethane foam was used.
[0037]
(Panel (2))
A test roof foundation panel A was formed in the same manner as in the panel (1) except that the surface plate 3 having the roughened layer 23 obtained in the anti-slip treatment (2) was used.
[0038]
(Panel (3))
A roof base panel A for test was formed in the same manner as the panel (1) except that the surface plate 3 having the roughened layer 23 obtained in the anti-slip treatment (3) was used.
[0039]
(Panel (4))
A roof base panel A for test was formed in the same manner as the panel (1) except that the surface plate 3 having the roughened layer 23 obtained in the anti-slip treatment (4) was used.
[0040]
(Panel (5))
A roof base panel A for test was formed in the same manner as the panel (1) except that the surface plate 3 having the roughened layer 23 obtained in the anti-slip treatment (5) was used.
[0041]
(Panel (6))
A roof base panel A for test was formed in the same manner as the panel (1) except that the surface plate 3 having the roughened layer 23 obtained in the anti-slip treatment (6) was used.
[0042]
(Panel (7))
A roof base panel A for test was formed in the same manner as in the panel (1) except that the surface plate 3 having the roughened layer 23 obtained in the anti-slip treatment (7) was used.
[0043]
The anti-slip performance was evaluated for the above panels (1) to (7). In this evaluation test, a person actually stood on the surface of the sloped roof base panel and evaluated the degree of slip. As shown in FIG. 5, the roof base panel is inclined so that one end of the roof base panel A is supported by the support base 45 installed on the ground. The slope of the roof base panel was adjusted so that the ratio of the lengths a and b was b / a = 5/10, 6/10, or 7/10. In addition, the degree of slip was evaluated in two states, a state where a person standing on the roof base panel was wearing safety shoes and a state where the safety shoes were not worn (the state of socks). Then, ◯ was given for not slipping at all, △ was given for being difficult to slide, △ was given for being slightly slid, △ was given for being slippery, X was given for being slid, and xx was given for being very slid. The results are shown in Table 2.
[0044]
[Table 2]
Figure 0003967988
[0045]
Considering from the above [Anti-slip performance evaluation 1] and [Anti-slip performance evaluation 2], the anti-slip treatment (1) is most preferable as the anti-slip treatment, and the anti-slip performance of the anti-slip treatment (1) is a coating material with sand. This is equivalent to a lightweight concrete board (ALC), and there is no particular problem in practical use. Anti-slip treatment (2) (3) is preferred after anti-slip treatment (1), and anti-slip treatment (2) (3) is slightly inferior to anti-slip treatment (1), but tile or plywood (wooden It can be used without any practical problem. Furthermore, although the anti-slip treatment (4) (5) is superior to the concrete plate, stone plate and plastic plate in terms of the anti-slip performance, it is preferably not used because the practical performance is slightly lower. Further, it is preferable not to use the anti-slip treatment (6) and (7) because the same performance as that of a concrete plate, stone plate or plastic plate can be obtained.
[0046]
Next, the anticorrosion performance (corrosion resistance) of the back plate was evaluated by using various corrosion prevention layers as the corrosion prevention treatment.
[0047]
(Corrosion prevention treatment (1))
A corrosion prevention layer 6 was formed by sticking a 0.07 mm thick film (“SPV-A-360” manufactured by Nitto Denko Corporation) to the surface of the back plate 4. As the back plate 4, a coated galvanized steel plate having a thickness of 0.35 mm was used. This coated galvanized steel sheet is obtained by galvanizing a surface of the steel sheet with a thickness of 17 μm, and then forming a coating film of a polyester resin paint on the surface of the galvanized layer with a thickness of 20 μm. Therefore, the corrosion prevention layer 6 is formed on the surface of the coating film of the back plate 4.
[0048]
(Corrosion prevention treatment (2))
A coating film having a thickness of 200 μm was formed as the corrosion prevention layer 6 by applying a vinyl chloride resin-based paint (“Vinizole” manufactured by Nippon Fine Coatings Co., Ltd.) to the surface of the back plate 4. As the back plate 4, a steel plate having a thickness of 0.35 mm was used.
[0049]
(Corrosion prevention treatment (3))
Except for the thickness of the corrosion prevention layer 6 being 100 μm, it was the same as the corrosion prevention treatment (2).
[0050]
(Corrosion prevention treatment (4))
Except for using a coated galvalume steel plate as the back plate 4, it was the same as the corrosion prevention treatment (1). This coated galvalume steel sheet is obtained by applying a 12 μm thick aluminum-zinc plating on the surface of the steel sheet and then forming a coating film of a polyester resin paint on the surface of the aluminum-zinc plating layer with a thickness of 20 μm.
[0051]
The anticorrosion performance of the back plate 4 treated in the above-described corrosion prevention treatments (1) to (4) was evaluated. This evaluation test was performed as follows. First, the back plate 4 is cut to a size of 50 × 100 mm to form a test piece, and the test piece is cut with a 90 ° press so as to follow the outer shape of the wood piece treated with the preservative (the wood type is rice bran). A 10 mm portion from the end was bent, and thereafter, the test piece and the piece of wood were fixed at two locations with stainless steel screws. At this time, the corrosion prevention layer 6 was brought into contact with a piece of wood. Next, the combination of the test piece and the wood piece was put in a sealed container together with 2.5 liters of pure water, covered, and set in a dryer. And the conditions of humidity 98% or more and the temperature of 70 degreeC were maintained for 168 hours (7 days) with the dryer, and this evaluated the degree of corrosion which arose in the test piece (back plate). Preservatives include ACQ, which is a copper / alkylammonium compound (copper), Tanaris CUAZ, which is a copper / boron / azole compound (copper), and a boron / alkylammonium compound (non-copper) And BAAC, respectively, were used.
[0052]
Corrosion of the test piece is that the coating film or the corrosion prevention layer 6 is peeled off from the steel sheet (blister), ◎ for those where no corrosion occurred, ○ for those where almost no corrosion occurred, ○ △ for the case where only the end of the test piece was corroded, △ for the case where the entire test piece was corroded to the extent that there was no practical problem, △ × was assigned to those in which corrosion was caused, × was assigned to those in which corrosion of a practical level was caused on the whole test piece, and XX was assigned to those in which significant corrosion occurred. The results are shown in Table 3. In Table 3, “Non-treated” is a test result when a piece of wood not treated with a preservative is used. In addition, “overall evaluation” is an evaluation that combines the antiseptic performance of each preservative. For comparison, the corrosion performance is also shown for the coated galvalume steel plate and the coated galvanized steel plate which are the same as the corrosion prevention treatment (1) (4) in which the corrosion prevention layer 6 is not formed.
[0053]
[Table 3]
Figure 0003967988
[0054]
As is apparent from Table 3, the corrosion resistance of the test pieces (back plate) subjected to the corrosion prevention treatments (1) to (4) was improved as compared with those not subjected to the corrosion prevention treatment.
[0055]
【The invention's effect】
As described above, according to the first aspect of the present invention, in the roof foundation panel mounted as a base plate on a roof structure material such as a main building, a heat insulating material is filled between the metal front plate and the back plate. Corrosion prevention layer for interposing between wooden roof structure material and back plate on the surface of back plate When the roof base panel is mounted on the roof structure material, the roof is covered with a corrosion prevention layer between the roof structure material and the back plate of the roof base panel. The structure material and the back plate can be kept out of direct contact, Wooden Agents and wood components such as preservatives contained in roof structure materials are less likely to act on the back plate by the corrosion prevention layer, and corrosion caused by agents and wood components contained in roof structure materials can be reduced. It is.
[0056]
Further, the invention of claim 2 of the present invention is characterized in that the surface of the surface plate is subjected to a non-slip treatment, and when the roof material is laid on the roof base panel, the surface plate Even if an operator is placed on the surface, it can be made difficult to slip, and the workability and safety can be improved.
[0057]
According to the invention of claim 3 of the present invention, a roof base panel is formed by filling a heat insulating material between a metal front plate and a back plate, and this roof base panel is mounted as a base plate on a roof structure material such as a main building. As well as Wooden Of roof structural materials and roofing panels With back plate It is characterized in that a corrosion prevention layer is interposed between the roof structure material and the back plate of the roof base panel, and the roof structure material and the back plate are directly interposed between the roof structure material and the back plate of the roof base panel. Can be kept out of contact, Wooden To reduce the corrosion caused by chemicals and wood components contained in the roof structure material because the anti-corrosive agent and wood components such as wood vinegar contained in the roof structure material are less likely to act on the back plate by the corrosion prevention layer. It is something that can be done.
[0058]
The invention according to claim 4 of the present invention is characterized in that a corrosion prevention layer is provided on the back surface of the roof base panel, and at the same time as the construction of the roof base panel, the roof structure material and the roof base material are provided. A corrosion prevention layer can be interposed between the panels, and it becomes easier to interpose a corrosion prevention layer between the roof structure material and the roof base panel, and the workability of the roof base panel can be improved. is there.
[0059]
The invention of claim 5 of the present invention is characterized in that the surface of the roof base panel is subjected to a non-slip treatment, and when laying the roof material on the roof base panel, Even if an operator is placed on the surface of the roof base panel, it can be made difficult to slip, and the workability and safety can be improved.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an example of an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the above.
FIG. 3 is a cross-sectional view showing a part of the roof base panel.
4 is a schematic view showing a test method in anti-slip performance evaluation 1. FIG.
FIG. 5 is a schematic view showing a test method in anti-slip performance evaluation 2;
[Explanation of symbols]
1 Roof structural material
2 Field plate
3 Surface plate
4 Back plate
5 Insulation
6 Corrosion prevention layer
7 Roofing material
A Panel for roof foundation

Claims (5)

母屋などの屋根構造材に野地板として載設される屋根下地用パネルにおいて、金属製の表面板と裏面板の間に断熱材を充填すると共に木製の屋根構造材と裏面板との間に介在させるための腐食防止層を裏面板の表面に設けて成ることを特徴とする屋根下地用パネル。In a roof foundation panel that is installed as a base plate on a roof structure material such as a main building, in order to fill the insulation between the metal surface plate and the back plate, and intervene between the wooden roof structure material and the back plate A roof base panel, characterized by comprising an anti-corrosion layer on the surface of the back plate . 表面板の表面に防滑処理を施して成ることを特徴とする請求項1に記載の屋根下地用パネル。  2. The roof base panel according to claim 1, wherein the surface of the surface plate is subjected to a non-slip treatment. 金属製の表面板と裏面板の間に断熱材を充填して屋根下地用パネルを形成し、この屋根下地用パネルを母屋などの屋根構造材に野地板として載設すると共に木製の屋根構造材と屋根下地用パネルの裏面板との間に腐食防止層を介在させて成ることを特徴とする屋根下地構造。A roof base panel is formed by filling a heat insulating material between a metal surface plate and a back plate, and this roof base panel is mounted on a roof structure material such as a main building as a base plate and a wooden roof structure material and a roof. A roof base structure comprising a corrosion prevention layer interposed between a back panel of a base panel. 屋根下地用パネルの裏面に腐食防止層を設けて成ることを特徴とする請求項3に記載の屋根下地構造。  4. The roof base structure according to claim 3, wherein a corrosion prevention layer is provided on the back surface of the roof base panel. 屋根下地用パネルの表面に防滑処理を施して成ることを特徴とする請求項3又は4に記載の屋根下地構造。  The roof foundation structure according to claim 3 or 4, wherein the surface of the panel for roof foundation is subjected to anti-slip treatment.
JP2002273969A 2002-09-19 2002-09-19 Roof base panel and roof base structure Expired - Fee Related JP3967988B2 (en)

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JP5695441B2 (en) * 2011-02-24 2015-04-08 京阪長尺金属工業株式会社 Thermal insulation panel for roof base
KR101491418B1 (en) * 2014-07-31 2015-02-12 주식회사 유니트하우스 Container house
JP2017193937A (en) * 2016-04-20 2017-10-26 Ecohouse株式会社 Thermal insulation board for roof, "eco insulation roof"

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