JP2004244924A - Exterior wall thermal insulating board, molding method of exterior wall thermal insulating board and exterior wall structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an exterior wall thermal insulating board capable of efficiently draining water or dew condensation water entering an exterior wall structure of a building through a drainage section provided to the exterior wall thermal insulating board. <P>SOLUTION: A vertical groove 3 is formed in the surface of accuracy of fittings of a foam resin-made board body 2, and the vertical groove 3 is so provided that it is buried and extended in the vertical direction in a state to expose the drainage section 4 to the surface of accuracy of fittings. The board body 2 is divided in the direction of the width, and the drainage section 4 can be provided so as to lie between divided pieces. A chip material consisting of the foam resin material is coagulated to mold chip glued laminated timber with a water permeable structure, and it is favorable that the chip glued laminated timber can be used for the drainage section 4. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、外壁断熱用ボード、該ボードの成形方法、及び、該ボードを断熱材に使用した外壁構造物に関するものである。
【０００２】
【従来の技術】
従来、以下のような建築物の外壁構造物が知られている。
＜第１従来例＞
図１０（ａ）に木造家屋の外壁構造物を平断面で示すように、断熱材にロックウール等の不燃性材料からなる外壁ボード５１を使用し、該ボード５１を金具５２で下地材（合板）５３に貼り付ける。外壁ボード５１と下地材５３との間に通気層５４を設け、外装材５５の目地５６から浸入した水、又は湿気により下地材５３に付着した結露を通気により乾燥する。コンクリート家屋の場合は、図１０（ｂ）に示すように、同様の通気層５４を外壁ボード５１とコンクリート壁５７との間に設ける。なお、特許文献１の段落番号０００７には、発泡樹脂製の断熱材と下地材との間に通気層を設けた技術が記載されている。
【特許文献１】特開２０００−０６４４４７号公報。
【０００３】
＜第２従来例＞
図１１に示すように、木造家屋において、下地材６１に縦皺付きの透湿防水シート６２をステープル６３で貼り付ける。断熱材に発泡樹脂製の外壁ボード６４を使用し、該ボード６４を透湿防水シート６２を介し樹脂製ワッシャ付きのビス６５で下地材に６１に貼り付ける。浸入水や結露を透湿防水シート６２の縦皺で導いて排出する。
【０００４】
＜第３従来例＞
図１２（ａ）に示すように、木造家屋において、下地材７１の全面に防水材７２を塗布し、防水材７２に断熱材としての発泡樹脂製の外壁ボード７３を接着剤７４で貼り付ける。接着剤７４を縦縞模様に塗布し、縞と縞との間に排水路７５を形成する。コンクリート家屋の場合は、図１２（ｂ）に示すように、同様の接着剤７４で外壁ボード７３をコンクリート壁７６に直接貼り付ける。
【０００５】
【発明が解決しようとする課題】
ところが、従来技術によると、次のような問題点があった。
＜第１従来例＞
通気層５４は浸入水や結露による下地材５３の腐敗を防止できる利点がある反面、大きな空隙が外壁ボード５１の断熱性能を劣化させる欠点がある。また、通気層５４は火災時に火の回りを早くするため、防火対策として、外壁ボード５１にロックウールやガラスウール等を、外装材５５にタイルやレンガ等を、どちらにも比較的高価な不燃性材料を用いる必要があった。
【０００６】
＜第２従来例＞
防水シート６２の縦皺が排水機能を発揮するため、通気層を設ける必要がなく、防火対策を緩め、外壁ボード６４及び外装材６６に比較的安価な難燃性材料を使用できる。しかし、皺のため防水シート６２に接着剤を使用できず、防水シート６２をステープル６３で、外壁ボード６４をビス６５でそれぞれ下地材６１に貼り付ける必要がある。このため、防水シート６２に明いた穴から下地材６１側に浸水したり、ビス６５によるヒートブリッジが外壁ボード６４の断熱効果を低下させる不具合があった。また、ビス６５を強く締め付けると、防水シート６２の皺が潰れ、毛細管現象で水が滞る不都合もあった。
【０００７】
＜第３従来例＞
通気層がないため、外壁ボード７３及び外装材７７に比較的安価な難燃性材料を使用できる。しかし、防水材７２に塗布むらがあると、水が下地材７１に浸み込んだり、外壁ボード７３を強く圧着した場合に接着剤７４が潰れ、排水路７５が機能しなくなり、その箇所に水が滞るおそれがあった。
【０００８】
そこで、本発明の目的は、優れた排水機能を備えた発揮できる外壁断熱用ボードを提供することにあり、あわせて、該ボードを安価に製造できる成形方法、及び、断熱材に排水機能を持たせた外壁構造物を提供することにある。
【０００９】
【課題を解決するための手段、作用及び発明の効果】
上記の課題を解決するために、請求項１の発明による外壁断熱用ボードは、発泡樹脂製のボード本体に樹脂材料からなる排水部を、ボード本体の建付面に露出する状態で、縦方向に延びるように設けたことを特徴とする。
【００１０】
この発明の外壁断熱用ボードは、家屋、倉庫、工場等の外壁構造物の断熱材として使用することができる。ボード本体の建付面とは、外壁構造物の下地材と対向する面であり、家屋の外壁に建て付ける場合は室内側に向く面である。ボード本体の成形材料としては、例えば、発泡倍率が２０〜１００倍、好ましくは６０倍前後の自己消化性発泡ポリスチレン樹脂を使用できる。
【００１１】
排水部の成形材料は、特定の樹脂材料に限定されないが、成形後の状態で通水性を発揮する材料が好ましい。例えば、通水性を有する連続気泡の発泡樹脂材料、或いは、発泡樹脂又は非発泡樹脂からなる多孔質の通水構造材を使用できる。発泡樹脂材料の発泡倍率は、例えば７０倍程度と、ボード本体より高い方が、通水性がよくなる点で好ましい。排水部の成形方法としては、ボード本体と同時に成形する方法、或いは、ボード本体と別個に成形し、後付けによりボード本体に組み込む方法などを例示できる。
【００１２】
この発明の外壁断熱用ボードによれば、排水部がボード本体の建付面に露出するので、ボード本体と下地材との間に浸入した水や湿気による結露を、ボード自体に設けた排水部によって流下させ、外壁構造物からスムーズに排出することができる。また、排水部は樹脂材料で成形されているため、外壁ボードの断熱効果を損うおそれがなく、軽量で運搬・施工が容易であり、しかも、安価に製造できる利点がある。
【００１３】
請求項２の発明による外壁断熱用ボードは、ボード本体の建付面に縦溝を形成し、排水部を縦溝が埋まるように設けたことを特徴とする。この構成によれば、ボード本体の必要最小限部分に排水部を設けて、優れた断熱効果が得られるとともに、ボード本体の強度を確保できる利点がある。
【００１４】
請求項３の発明による外壁断熱用ボードは、ボード本体を幅方向に分割し、排水部をボード本体の分割片間に介在するように設けたことを特徴とする。こうすれば、排水部がボード本体の建付面のみならず反建付面にも露出するので、家屋等の外壁構造物において、外装材の目地や周縁から浸入した雨水を排水部により流下させ、効率よく排出することができる。また、排水部をボード本体と同時に成形することも、後付けで組み込むことも容易である。
【００１５】
請求項４の発明による外壁断熱用ボードは、排水部に発泡樹脂材料からなる通水構造材を用いたことを特徴とする。通水構造材としては、チップ状の多数の発泡樹脂素材を通水間隙を開けて凝集させた集合材、又は、押出発泡により成形した多数本の線状、棒状、ストロー状の素材を束ねた集束材、或いは、柱状の発泡樹脂素材に多数の縦孔を明けた柱状材など、通水性を有する各種の多孔質構造材を使用できる。この構成によれば、排水部を容易に成形でき、しかも高い排水効果が得られる利点がある。
【００１６】
請求項５の発明による外壁断熱用ボードは、通水構造材をボード本体と同質の発泡樹脂材料で成形したことを特徴とする。こうすれば、成形時におけるボード本体及び排水部の加工条件を等しくでき、例えば、双方を共通の加熱線材により同じ速度できれいに切断できなど、品質が向上する利点がある。また、施工後の残材の廃棄処理も容易になる。
【００１７】
請求項６の発明による外壁断熱用ボードは、発泡樹脂材料からなチップ材を凝集させて通水構造材を成形したことを特徴とする。チップ材としては、例えば、、ポテトチップに似た扁平形状のものやビーズ形状のものを使用できるほか、廃棄物として収集された発泡樹脂製品の破砕片等も使用可能である。チップ材を凝集させる手段としては、加熱による融着又は接着剤による接着等を例示できる。この構成によれば、排水部を安価なチップ材を用いて簡単な方法で成形でき、高い排水効果が得られる利点がある。
【００１８】
請求項７の発明による外壁断熱用ボードの成形方法は、発泡樹脂材料からなるチップ材を凝集させて通水構造材を成形し、複数本の通水構造材を成形型内に並設し、成形型内で発泡樹脂材料を発泡させ、通水構造材が埋設された発泡樹脂母材を成形し、通水構造材を縦断する面で発泡樹脂母材を複数枚に切断し、発泡樹脂母材の切断片でボード本体を成形し、ボード本体の切断面に露出した通水構造材で排水部を成形したことを特徴とする。この成形方法によれば、一つの発泡樹脂母材から複数枚の外壁断熱用ボードを能率よく安価に製造できる。
【００１９】
請求項８の発明は、下地材に断熱材を介して外装材を設けた外壁構造物において、下地材の表面を防水材で被覆し、断熱材に請求項１〜６の何れかの発明による外壁断熱用ボードを用い、外壁断熱用ボードと下地材との間にスペーサ部材を介在させ、スペーサ部材で外壁断熱用ボードを下地材に貼り付け、外壁断熱用ボードの表面に補強メッシュを介してモルタルを塗り付け、モルタルの表面に外装材を設けたことを特徴とする。
【００２０】
ここで、下地材としては、建築基準法第２条第８号に規定された防火基準に適合する防火構造材、例えば、火山性ガラス質複層板等を好ましく使用できる。防水材としては、アクリル系エマルジョン、溶剤系アクリル樹脂、エチレン酢ビ系エマルジョン、溶剤系エチレン酢ビ樹脂、合成ゴム系ラテックス、溶剤系合成ゴム樹脂、ポリエチレン系防水シート、塩ビ系防水シート等を例示できる。スペーサ部材は、外壁断熱用ボードと下地材との間に所定の間隔を確保して、該間隔を排水路として機能させるための部材であり、例えば、接着剤や樹脂製ワッシャー（スペーサ）付のビスを使用でき、また、双方を併用することも可能である。
【００２１】
補強メッシュには、耐アルカリ性繊維、耐アルカリ性ガラス繊維又は金属からなるメッシュを使用できる。モルタルには、アクリル系エマルジョン、エチレン酢ビ系エマルジョン、合成ゴム系ラテックスの何れかにセメントを混ぜた樹脂モルタルを使用できる。外装材には、アクリル系エマルジョン塗料、アクリル系リシン塗料、アクリル系マスチック塗料等を好ましく使用できる。より具体的には、シリコン変性アクリル系エマルジョン塗料、シリコン変性アクリル系リシン塗料、シリコン変性アクリル系マスチック塗料、フッ素変性アクリル系エマルジョン塗料、フッ素変性アクリル系リシン塗料、フッ素変性アクリル系マスチック塗料、ウレタン変性アクリル系エマルジョン塗料、ウレタン変性アクリル系リシン塗料、ウレタン変性アクリル系マスチック塗料等を例示できる。
【００２２】
この外壁構造物によれば、外部から浸入した水や、内部に発生した湿気による結露が外壁断熱用ボードの排水部を流下して外壁構造部から排出される。しかも、外壁断熱用ボードと下地材との間にスペーサ部材が介在するので、双方間に排水路を形成して、排水効果をさらに高めることができる。従って、木製の下地材やクロス材等の水分を嫌う構造材を腐敗から確実に、保護することができる。また、外壁構造物から通気層を省略して、壁厚を薄く施工でき、防火対策を緩めて、外装材等に比較的安価な難燃性材料を用いることが可能となる。特に、外壁断熱用ボードの全体を発泡樹脂材料で成形した場合は、断熱効果が優れ、軽量で運搬・施工が容易であり、建築物を安価に施工できる利点もある。
【００２３】
請求項９の発明による外壁構造物は、スペーサ部材に接着剤を用い、接着剤を外壁断熱用ボードと下地材との間に部分的に介在させ、接着剤で外壁断熱用ボードを下地材に貼り付けたことを特徴とする。接着剤としては、アクリル系エマルジョン、エチレン酢ビ系エマルジョン、合成ゴム系ラテックスの何れかを成分とする接着剤、又は前記何れかの成分にセメントを混ぜた樹脂モルタルを使用できる。接着剤を、下地材に塗布してもよく、ボードに塗布してもよく、両方に塗布してもよい。また、接着剤を縦縞模様に塗布してもよく、斑点模様に塗布してもよく、部分的に介在させるための多様な塗布形態を採用できる。この構成によれば、外壁断熱用ボードの施工に際し、ボードを接着剤で下地材に貼り付けるので、ボードに穴が明くビスやボルト等の留金具を用いる必要がなく、ボードからの浸水やヒートブリッジによる熱損失を防止できるとともに、ボードを短時間に施工できる利点がある。
【００２４】
【発明の実施の形態】
以下、この発明の実施の形態を図面に基づいて説明する。
＜第１実施形態＞
図１〜図６はこの発明の第１実施形態を示すものである。図１に示すように、この実施形態の外壁断熱用ボード１においては、ボード本体２が発泡ポリスチレン材料によって、例えば、横１０００ｍｍ、縦６５０ｍｍ、厚さ５０ｍｍの横長四角形に成形されている。ボード本体２の建付面には３本の縦溝３が形成され、各縦溝３に排水部４が、建付面に露出する状態で縦溝３を埋め、かつ縦方向に延びるように設けられている。
【００２５】
図２及び図３に示すように、排水部４には、発泡樹脂材料からなる通水構造材６が用いられている。図２に示す通水構造材６は、ボード本体２と同質の発泡樹脂材料からなる多数のチップ材５Ａを加熱融着又は接着剤で通水間隙を開けて凝集させることにより、多孔質の角柱形状に成形されている。チップ材５Ａはポテトチップに似た扁平形状に形成されている。図３に示す通水構造材６は、ボード本体２と同質の発泡樹脂材料からなる多数本の押出発泡材５Ｂ，５Ｃを加熱融着又は接着剤で通水間隙を開けて凝集させることにより、多孔質の角柱形状に成形されている。なお、押出発泡材５Ｂはストロー形状に成形され、押出発泡材５Ｃは屈曲棒状に成形されている。その他、ストレートな棒状の押出発泡材も使用可能である。
【００２６】
次に、外壁断熱用ボード１の成形方法を図４に基づいて説明する。まず、（ａ）に示すように、発泡樹脂材料からなる多数のチップ材５Ａ（押出発泡材５Ｂ，５Ｃでもよい）を凝集させて、角柱形状の通水構造材６を成形する。次いで、（ｂ）に示すように、例えば９本の通水構造材６を成形型７の内部に縦向きに並設し、成形型７の内部に発泡樹脂ビーズを充填し、これを加熱により発泡させて通水構造材６に融着させる。次に、成形型７を取り外し、（ｃ）に示すように、通水構造材６が埋設された発泡樹脂母材８を成形する。
【００２７】
続いて、（ｄ）に示すように、ニクロム線等の加熱線材９を用い、通水構造材６を縦断する面で発泡樹脂母材８を６枚に切断する。そして、（ｅ）に示すように、発泡樹脂母材８の切断片でボード本体２を成形し、ボード本体２の切断面に露出した通水構造材６で排水部４を成形する。こうすれば、一つの発泡樹脂母材８から６枚の外壁断熱用ボード１を能率よく安価に製造することができる。また、通水構造材６がボード本体２と同質の発泡樹脂材料で成形されているので、ボード本体２及び排水部４を共通の加熱線材９により同じ速度できれいに切断して、高品質の外壁断熱用ボード１を製造することができる。
【００２８】
なお、上記成形方法とは異なり、ボード本体２の縦溝３を利用して、通水構造材６を成形することも可能である。この場合、ボード本体２を予め図２に示す形状に成形し、このボード本体２を成形型内に載置し、ボード本体２の縦溝３に多数のチップ材５Ａを充填し、チップ材５Ａを加熱により半溶融状態で凝集させて通水構造材６を成形し、同時に、通水構造材６をボード本体２に融着させて、外壁断熱用ボード１を得る。
【００２９】
次に、上記外壁断熱用ボード１を用いて施工した外壁構造物について説明する。図５及び図６（ａ）は、建築物として木造家屋を例示し、その外壁構造物１０を示すものである。この外壁構造物１０においては、家屋の柱１１に防火構造の合板（例えば、火山性ガラス質複層板等）を用いた外壁用下地材１２が貼り付けられている。下地材１２の表面全域には、アクリル系エマルジョン等の防水材１３が塗布されている。なお、下地材１２の表面全域をポリエチレン系防水シート等で被覆してもよい。
【００３０】
下地材１２と外壁断熱用ボード１との間には、エマルジョン系等の接着剤１５が部分的に介在している。接着剤１５は、下地材１２に縦縞模様又は斑点模様に塗布してもよく、外壁断熱用ボード１の裏面に縦縞模様又は斑点模様に塗布してもよい。外壁断熱用ボード１は接着剤１５で防水材１３を介して下地材１２に貼り付けられている。接着剤１５を部分的に塗布することで、外壁断熱用ボード１と下地材１２との間に縦方向に延びる排水路が形成される。
【００３１】
外壁断熱用ボード１の表面（室外側面）と端面と裏面の一部とは、耐アルカリ性ガラス繊維等からなる衝撃抵抗の大きい補強メッシュ１４で被覆されている。外壁断熱用ボード１の表面には、アクリル系エマルジョンにセメントを混ぜた樹脂モルタル２０が補強メッシュ１４を介して塗り付けられている。モルタル２０の表面には、シリコン変性アクリル合成エマルジョン塗料等の外装材１６が吹き付け又はコテ仕上げにより塗着されている。外装材１６の接続部には目地１７が設けられ、この目地１７によって外壁断熱用ボード１の端面間の空隙部が塞がれている。なお、下地材１２に防火構造の合板を用いることで、モルタル２０を平均厚さ０．５〜１０ｍｍで、また、外装材１６を平均厚さ０．０１〜１０ｍｍで、何れも従来と比較して大幅に薄く塗布することができる。平均厚さとは、全塗膜の厚みの積分値を平面積で除した値であり、平均厚さの範囲で、外装材１６を外観視凹凸状に仕上げてもよい。
【００３２】
図６（ｂ）に示すように、コンクリート家屋の外壁構造物１８においては、コンクリート壁１９と外壁断熱用ボード１との間に縦縞模様又は斑点模様の接着剤１５が部分的に介在し、この接着剤１５によって外壁断熱用ボード１がコンクリート壁１９に直接貼り付けられる。
【００３３】
この実施形態の外壁断熱用ボード１及び家屋の外壁構造物１０，１８によれば、ボード本体２と下地材１２との間に浸入した水や湿気による結露が外壁断熱用ボード１の排水部４を流下して、外壁構造物１０，１８から外部へ排出される。従って、合板製の下地材１２を腐敗から保護でき、外壁構造物１０，１８から通気層を省略して、壁厚を薄く施工でき、外装材１６に比較的安価な難燃性材料をも用いることが可能となる。また、排水部４に発泡樹脂製の通水構造材６を用い、通水構造材６をボード本体２の縦溝３に埋設しているため、安価な材料で高い排水効果が得られるうえ、排水部４が占める容積率を抑えて、外壁断熱用ボード１の強度及び断熱効果を向上できる利点もある。
【００３４】
＜第２実施形態＞
図７〜図９はこの発明の第２実施形態を示すものである。図７に示すように、この外壁断熱用ボード２１においては、ボード本体２２が幅方向に分割され、４枚の分割片２３で構成されている。排水部２４は隣接する分割片２３の間に介在し、ボード本体２２の建付面及び反建付面に露出する状態で、縦方向に延びるように設けられている。
【００３５】
排水部２４には、図８（ａ）に示すように、第１実施形態と同じ発泡樹脂製の通水構造材２５が用いられている。外壁断熱用ボード２１の成形にあたっては、（ｂ）に示すように、例えば３本の通水構造材２５を成形型７の内部に並設し、（ｃ）に示すように、通水構造材２５が埋設された発泡樹脂母材８を成形し、（ｄ）に示すように、加熱線材９を用いて、通水構造材２５を縦断する面で発泡樹脂母材８を切断し、（ｅ）に示すように、発泡樹脂母材８の切断片でボード本体２２を成形し、ボード本体２２の切断面に露出した通水構造材２５で排水部２４を成形する。
【００３６】
外壁断熱用ボード２１の施工形態は、第１実施形態と同様であり、図９（ａ）に木造家屋の外壁構造物１０を例示し、図９（ｂ）にコンクリート家屋の外壁構造物１８を例示した。
【００３７】
この実施形態の外壁断熱用ボード２１及び家屋の外壁構造物１０，１８によれば、特に、排水部２４がボード本体２２の建付面及び反建付面の両面に露出するので、外装材１６の目地１７や周縁から浸入した雨水を排水部２４により流下させ、効率よく排出することができる。また、ボード本体２２の分割片２３と通水構造材２５とをそれぞれ別工程で成形したのちに、加熱融着又は接着剤により一体化することも可能で、外壁断熱用ボード２１を多様な方法で簡単に成形できる利点もある。その他の作用効果は第１実施形態と同様である。
【図面の簡単な説明】
【図１】本発明の第１実施形態を示す外壁断熱用ボードの斜視図である。
【図２】図１の外壁断熱用ボードの通水構造材を示す斜視図である。
【図３】通水構造材の別の実施例を示す斜視図である。
【図４】図１の外壁断熱用ボードの成形方法を示す工程説明図である。
【図５】図１の外壁断熱用ボードの施工形態を示す外壁構造物の部分斜視図である。
【図６】図５の外壁構造物の平断面図である。
【図７】本発明の第２実施形態を示す外壁断熱用ボードの斜視図である。
【図８】図７の外壁断熱用ボードの成形方法を示す工程説明図である。
【図９】図７の外壁断熱用ボードの施工形態を示す外壁構造物の平断面図である。
【図１０】第１従来例の外壁ボードの施工形態を示す平断面図である。
【図１１】第２従来例の外壁ボードの施工形態を示す平断面図である。
【図１２】第３従来例の外壁ボードの施工形態を示す平断面図である。
【符号の説明】
１ 外壁断熱用ボード
２ ボード本体
３ 縦溝
４ 排水部
５Ａ チップ材
５Ｂ ストロー状の押出発泡材
５Ｃ 屈曲棒状の押出発泡材
６ 通水構造材
７ 成形型
８ 発泡樹脂母材
９ 加熱線材
１０ 外壁構造物
１２ 外壁用下地材
１３ 防水材
１４ 補強メッシュ
１５ 接着剤
１６ 外装材
１７ 目地
１８ 外壁構造物
１９ コンクリート壁
２１ 外壁断熱用ボード
２２ ボード本体
２３ 分割片
２４ 排水部
２５ 通水構造材[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an outer wall heat insulating board, a method of forming the board, and an outer wall structure using the board as a heat insulating material.
[0002]
[Prior art]
BACKGROUND ART Conventionally, the following outer wall structures of a building are known.
<First conventional example>
As shown in a plan view of an outer wall structure of a wooden house in FIG. 10A, an outer wall board 51 made of a non-combustible material such as rock wool is used as a heat insulating material, and the board 51 is attached to a base material (plywood) with a metal fitting 52. ) Paste on 53. A ventilation layer 54 is provided between the outer wall board 51 and the base material 53, and dew condensation adhering to the base material 53 due to water or moisture entering from joints 56 of the exterior material 55 is dried by ventilation. In the case of a concrete house, a similar ventilation layer 54 is provided between the outer wall board 51 and the concrete wall 57 as shown in FIG. In addition, paragraph No. 0007 of Patent Document 1 describes a technique in which a ventilation layer is provided between a heat insulating material made of foamed resin and a base material.
[Patent Document 1] Japanese Patent Application Laid-Open No. 2000-064447.
[0003]
<Second conventional example>
As shown in FIG. 11, in a wooden house, a moisture-permeable waterproof sheet 62 with vertical wrinkles is attached to a base material 61 with staples 63. An outer wall board 64 made of a foamed resin is used as a heat insulating material, and the board 64 is attached to the base material 61 with a screw 65 with a resin washer via a moisture-permeable waterproof sheet 62. Infiltration water and dew are guided by vertical wrinkles of the moisture-permeable waterproof sheet 62 and discharged.
[0004]
<Third conventional example>
As shown in FIG. 12A, in a wooden house, a waterproof material 72 is applied to the entire surface of a base material 71, and an outer wall board 73 made of a foamed resin as a heat insulating material is attached to the waterproof material 72 with an adhesive 74. An adhesive 74 is applied to the vertical stripes, and a drainage channel 75 is formed between the stripes. In the case of a concrete house, as shown in FIG. 12B, the outer wall board 73 is directly attached to the concrete wall 76 with the same adhesive 74.
[0005]
[Problems to be solved by the invention]
However, the prior art has the following problems.
<First conventional example>
The ventilation layer 54 has the advantage of preventing decay of the base material 53 due to intrusion of water or condensation, but has the disadvantage that the large voids degrade the heat insulation performance of the outer wall board 51. In addition, the ventilation layer 54 makes the surrounding area of the fire faster in the event of a fire. As a fire protection measure, the outer wall board 51 is made of rock wool or glass wool, the exterior material 55 is made of tiles or bricks, etc. It was necessary to use a conductive material.
[0006]
<Second conventional example>
Since the vertical wrinkles of the waterproof sheet 62 exhibit a drainage function, there is no need to provide a ventilation layer, so that fire prevention measures can be relaxed, and relatively inexpensive flame-retardant materials can be used for the outer wall board 64 and the exterior material 66. However, an adhesive cannot be used for the waterproof sheet 62 due to wrinkles, and it is necessary to attach the waterproof sheet 62 to the base material 61 with staples 63 and the outer wall board 64 with screws 65 respectively. For this reason, there is a problem that water enters into the base material 61 through a hole formed in the waterproof sheet 62 or a heat bridge by the screw 65 reduces the heat insulating effect of the outer wall board 64. Also, when the screw 65 is strongly tightened, the wrinkles of the waterproof sheet 62 are crushed, and there is also a disadvantage that water is blocked by capillary action.
[0007]
<Third conventional example>
Since there is no ventilation layer, a relatively inexpensive flame-retardant material can be used for the outer wall board 73 and the exterior material 77. However, if the waterproof material 72 is unevenly coated, the water penetrates into the base material 71 or the adhesive 74 is crushed when the outer wall board 73 is strongly pressed, so that the drainage channel 75 does not function. Could be delayed.
[0008]
Therefore, an object of the present invention is to provide an outer wall heat insulating board which can be exhibited with an excellent drainage function, and in addition, a molding method capable of manufacturing the board at low cost, and a heat insulating material having a drainage function. It is to provide an outer wall structure which has been sunk.
[0009]
Means for Solving the Problems, Functions and Effects of the Invention
In order to solve the above-mentioned problem, an outer wall heat insulating board according to the first aspect of the present invention provides a board body made of a foamed resin in which a drainage portion made of a resin material is exposed in a vertical direction in a state of being exposed to a mounting surface of the board body. It is provided so that it may extend.
[0010]
The outer wall heat insulating board of the present invention can be used as a heat insulating material for outer wall structures such as houses, warehouses, factories and the like. The mounting surface of the board body is a surface facing the base material of the outer wall structure, and is a surface facing the indoor side when the board is mounted on the outer wall of the house. As a molding material of the board body, for example, a self-digestible expanded polystyrene resin having an expansion ratio of 20 to 100 times, preferably about 60 times can be used.
[0011]
The molding material of the drainage section is not limited to a specific resin material, but is preferably a material that exhibits water permeability in a state after molding. For example, an open-cell foamed resin material having water permeability, or a porous water-permeable structure made of a foamed resin or a non-foamed resin can be used. The expansion ratio of the foamed resin material is preferably, for example, about 70 times, which is higher than that of the board body, in that the water permeability is improved. Examples of the method of forming the drainage portion include a method of forming the drainage portion at the same time as the board main body, and a method of forming the drainage portion separately from the board main body and incorporating it into the board main body by retrofitting.
[0012]
ADVANTAGE OF THE INVENTION According to the board | substrate for exterior wall heat insulation of this invention, since the drainage part is exposed to the mounting surface of a board main body, the water | moisture content which invaded between the board main body and the base material dew condensation provided in the board itself was carried out. And can be smoothly discharged from the outer wall structure. Further, since the drainage portion is formed of a resin material, there is no risk of impairing the heat insulating effect of the outer wall board, and there is an advantage that it is lightweight, easy to transport and execute, and can be manufactured at low cost.
[0013]
The board for heat insulation of an outer wall according to the second aspect of the present invention is characterized in that a vertical groove is formed on a mounting surface of the board body, and a drainage portion is provided so as to fill the vertical groove. According to this configuration, there is an advantage that a drainage portion is provided in a necessary minimum portion of the board main body, an excellent heat insulating effect is obtained, and the strength of the board main body can be secured.
[0014]
The board for heat insulation of an outer wall according to the third aspect of the present invention is characterized in that the board body is divided in the width direction, and the drain portion is provided between the divided pieces of the board body. In this way, the drainage part is exposed not only on the mounting surface of the board main body but also on the anti-building surface, so that in the outer wall structure such as a house, rainwater that has entered from the joints and peripheral edges of the exterior material is caused to flow down by the drainage part. , Can be discharged efficiently. Further, it is easy to form the drainage part at the same time as the board body or to incorporate it later.
[0015]
An outer wall heat insulating board according to a fourth aspect of the invention is characterized in that a water-permeable structure made of a foamed resin material is used for the drainage portion. As the water-permeable structure material, a large number of chip-shaped foamed resin materials were formed by agglomerating by opening a water gap, or a large number of linear, rod-shaped, and straw-shaped materials formed by extrusion foaming were bundled. Various porous structural materials having water permeability, such as a sizing material or a columnar material in which a number of vertical holes are formed in a columnar foamed resin material, can be used. According to this configuration, there is an advantage that the drainage portion can be easily formed and a high drainage effect can be obtained.
[0016]
The board for heat insulation of an outer wall according to the invention of claim 5 is characterized in that the water-permeable structural member is formed of a foamed resin material of the same quality as the board body. By doing so, the processing conditions of the board body and the drainage part during molding can be made equal, and for example, there is an advantage that the quality is improved, for example, both can be cut cleanly at the same speed by a common heating wire. In addition, disposal of the remaining material after construction is facilitated.
[0017]
The board for heat insulation of an outer wall according to the invention of claim 6 is characterized in that a water-permeable structural member is formed by aggregating a chip material made of a foamed resin material. As the chip material, for example, a flat shape or a bead shape similar to a potato chip can be used, and a crushed piece of a foamed resin product collected as waste can also be used. Examples of the means for aggregating the chip material include fusion by heating or adhesion by an adhesive. According to this configuration, the drainage portion can be formed by a simple method using an inexpensive chip material, and there is an advantage that a high drainage effect can be obtained.
[0018]
The method of forming a board for heat insulating an outer wall according to the invention of claim 7 is to form a water-permeable structural material by aggregating a chip material made of a foamed resin material, and to arrange a plurality of water-permeable structural materials in a molding die. The foamed resin material is foamed in the mold, the foamed resin base material in which the water-permeable structure material is buried is formed, and the foamed resin base material is cut into a plurality of pieces on a surface which vertically cuts the water-permeable structure material. The board body is formed from cut pieces of the material, and the drainage section is formed from a water-permeable structural material exposed on a cut surface of the board body. According to this molding method, a plurality of outer wall heat insulating boards can be efficiently and inexpensively manufactured from one foamed resin base material.
[0019]
The invention according to claim 8 is an outer wall structure in which an exterior material is provided on a base material via a heat insulating material, wherein the surface of the base material is covered with a waterproof material, and the heat insulating material is provided according to any one of the inventions according to any one of claims 1 to 6. Using the outer wall insulation board, a spacer member is interposed between the outer wall insulation board and the base material, the outer wall insulation board is attached to the base material with the spacer member, and the outer wall insulation board surface is reinforced via a reinforcing mesh. It is characterized in that a mortar is applied and an exterior material is provided on the surface of the mortar.
[0020]
Here, as the base material, a fire protection structural material conforming to the fire protection standard prescribed in Article 2, Item 8 of the Building Standards Law, for example, a volcanic glassy multilayer board can be preferably used. Examples of the waterproof material include an acrylic emulsion, a solvent-based acrylic resin, an ethylene-vinyl acetate-based emulsion, a solvent-based ethylene-vinyl acetate resin, a synthetic rubber-based latex, a solvent-based synthetic rubber resin, a polyethylene-based waterproof sheet, a PVC-based waterproof sheet, and the like. it can. The spacer member is a member for securing a predetermined interval between the outer wall heat insulating board and the base material and for making the interval function as a drainage channel. For example, the spacer member is provided with an adhesive or a resin washer (spacer). Screws can be used, or both can be used in combination.
[0021]
As the reinforcing mesh, a mesh made of alkali-resistant fiber, alkali-resistant glass fiber or metal can be used. As the mortar, a resin mortar in which cement is mixed with any of an acrylic emulsion, an ethylene-vinyl acetate-based emulsion, and a synthetic rubber-based latex can be used. As the exterior material, an acrylic emulsion paint, an acrylic lysine paint, an acrylic mastic paint, or the like can be preferably used. More specifically, silicon-modified acrylic emulsion paint, silicon-modified acrylic lysine paint, silicon-modified acrylic mastic paint, fluorine-modified acrylic emulsion paint, fluorine-modified acrylic lysine paint, fluorine-modified acrylic mastic paint, urethane-modified An acrylic emulsion paint, a urethane-modified acrylic lysine paint, a urethane-modified acrylic mastic paint and the like can be exemplified.
[0022]
According to this outer wall structure, water that has entered from the outside and dew due to moisture generated inside flow down the drainage portion of the outer wall heat insulating board and are discharged from the outer wall structure. Moreover, since the spacer member is interposed between the outer wall heat insulating board and the base material, a drainage channel is formed between the two, and the drainage effect can be further enhanced. Therefore, a structural material which dislikes moisture, such as a wooden base material or a cloth material, can be reliably protected from decay. Further, the ventilation layer can be omitted from the outer wall structure, the wall thickness can be reduced, the fire prevention measures can be relaxed, and a relatively inexpensive flame-retardant material can be used for the exterior material and the like. In particular, when the entire outer wall heat insulating board is formed of a foamed resin material, there are advantages that the heat insulating effect is excellent, the weight is light, the transportation and construction are easy, and the building can be constructed at low cost.
[0023]
In the outer wall structure according to the ninth aspect of the present invention, an adhesive is used for the spacer member, the adhesive is partially interposed between the outer wall heat insulating board and the base material, and the outer wall heat insulating board is bonded to the base material with the adhesive. It is characterized by being pasted. As the adhesive, an adhesive containing any one of an acrylic emulsion, an ethylene-vinyl acetate emulsion, and a synthetic rubber-based latex, or a resin mortar obtained by mixing cement with any of the above-mentioned components can be used. The adhesive may be applied to the base material, to the board, or to both. Further, the adhesive may be applied to the vertical stripe pattern or the spot pattern, and various application forms for partially interposing the adhesive may be adopted. According to this configuration, when the outer wall insulation board is installed, the board is attached to the base material with an adhesive, so there is no need to use fasteners such as screws or bolts that have a clear hole in the board. There is an advantage that heat loss due to the heat bridge can be prevented and the board can be installed in a short time.
[0024]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
<First embodiment>
1 to 6 show a first embodiment of the present invention. As shown in FIG. 1, in an outer wall heat insulating board 1 of this embodiment, a board body 2 is formed of a foamed polystyrene material into, for example, a horizontally long rectangle having a width of 1000 mm, a length of 650 mm, and a thickness of 50 mm. Three vertical grooves 3 are formed on the mounting surface of the board body 2, and the drains 4 are filled in the respective vertical grooves 3 so as to fill the vertical grooves 3 so as to be exposed on the mounting surface and extend in the vertical direction. Is provided.
[0025]
As shown in FIGS. 2 and 3, the drainage section 4 uses a water-permeable structural member 6 made of a foamed resin material. The water-permeable structural member 6 shown in FIG. 2 is made of a porous prism by cohering a large number of chip materials 5A made of a foamed resin material of the same quality as the board body 2 by heat-sealing or opening a water-permeable gap with an adhesive. It is shaped into a shape. The chip material 5A is formed in a flat shape similar to a potato chip. The water-permeable structural material 6 shown in FIG. 3 is formed by cohering a large number of extruded foamed materials 5B and 5C made of a foamed resin material of the same quality as the board main body 2 by heat-sealing or opening a water-permeable gap with an adhesive. It is formed into a porous prismatic shape. The extruded foam material 5B is formed in a straw shape, and the extruded foam material 5C is formed in a bent rod shape. In addition, a straight rod-shaped extruded foam material can also be used.
[0026]
Next, a method of forming the outer wall heat insulating board 1 will be described with reference to FIG. First, as shown in (a), a large number of chip materials 5A (or extruded foam materials 5B and 5C) made of a foamed resin material are aggregated to form a prismatic water-permeable structure material 6. Next, as shown in (b), for example, nine water-permeable structural members 6 are vertically arranged in the inside of the molding die 7, and the inside of the molding die 7 is filled with foamed resin beads. It is foamed and fused to the water-permeable structural member 6. Next, the mold 7 is removed, and the foamed resin base material 8 in which the water-permeable structure material 6 is embedded is formed as shown in FIG.
[0027]
Subsequently, as shown in (d), using a heating wire 9 such as a nichrome wire, the foamed resin base material 8 is cut into six pieces on the surface that vertically cuts the water-permeable structural material 6. Then, as shown in (e), the board main body 2 is formed from a cut piece of the foamed resin base material 8, and the drainage section 4 is formed from the water-permeable structural material 6 exposed on the cut surface of the board main body 2. In this case, six outer wall heat insulating boards 1 can be efficiently and inexpensively manufactured from one foamed resin base material 8. Further, since the water-permeable structural member 6 is formed of a foamed resin material of the same quality as the board body 2, the board body 2 and the drainage section 4 are cut cleanly at the same speed by the common heating wire 9 to provide a high-quality outer wall. The heat insulating board 1 can be manufactured.
[0028]
In addition, unlike the above-mentioned molding method, it is also possible to mold the water-permeable structural member 6 using the vertical groove 3 of the board body 2. In this case, the board body 2 is previously formed into the shape shown in FIG. 2, the board body 2 is placed in a mold, and the vertical grooves 3 of the board body 2 are filled with a large number of chip materials 5A. Are agglomerated in a semi-molten state by heating to form the water-permeable structural member 6, and at the same time, the water-permeable structural member 6 is fused to the board body 2 to obtain the outer wall heat insulating board 1.
[0029]
Next, an outer wall structure constructed using the outer wall heat insulating board 1 will be described. FIG. 5 and FIG. 6A illustrate a wooden house as a building, and show an outer wall structure 10 thereof. In this outer wall structure 10, an outer wall base material 12 using plywood (for example, a volcanic glassy multi-layer plate) having a fire protection structure is attached to a pillar 11 of a house. A waterproof material 13 such as an acrylic emulsion is applied to the entire surface of the base material 12. The entire surface of the base material 12 may be covered with a polyethylene-based waterproof sheet or the like.
[0030]
An adhesive 15 such as an emulsion system is partially interposed between the base material 12 and the outer wall heat insulating board 1. The adhesive 15 may be applied to the base material 12 in a vertical stripe pattern or a spot pattern, or may be applied to the back surface of the outer wall heat insulating board 1 in a vertical stripe pattern or a spot pattern. The outer wall heat insulating board 1 is adhered to the base material 12 via a waterproof material 13 with an adhesive 15. By partially applying the adhesive 15, a drainage channel extending in the vertical direction is formed between the outer wall heat insulating board 1 and the base material 12.
[0031]
The front surface (outdoor side surface), the end surface, and part of the back surface of the outer wall heat insulating board 1 are covered with a reinforcing mesh 14 made of alkali-resistant glass fiber or the like and having high impact resistance. A resin mortar 20 in which an acrylic emulsion is mixed with cement is applied to the surface of the outer wall heat insulating board 1 via a reinforcing mesh 14. An exterior material 16 such as a silicone-modified acrylic synthetic emulsion paint is applied to the surface of the mortar 20 by spraying or ironing. A joint 17 is provided at a connection portion of the exterior material 16, and the joint 17 closes a gap between end faces of the outer wall heat insulating board 1. The mortar 20 has an average thickness of 0.5 to 10 mm, and the exterior material 16 has an average thickness of 0.01 to 10 mm. Can be applied much thinner. The average thickness is a value obtained by dividing the integrated value of the thickness of all the coating films by a plane area, and the exterior material 16 may be finished to have an uneven appearance in the range of the average thickness.
[0032]
As shown in FIG. 6 (b), in the outer wall structure 18 of the concrete house, the adhesive 15 having a vertical stripe pattern or a spot pattern is partially interposed between the concrete wall 19 and the outer wall heat insulating board 1. The outer wall heat insulating board 1 is directly adhered to the concrete wall 19 by the adhesive 15.
[0033]
According to the outer wall heat insulating board 1 of this embodiment and the outer wall structures 10 and 18 of the house, dew condensation caused by water or moisture that has entered between the board main body 2 and the base material 12 causes the drain portion 4 of the outer wall heat insulating board 1. And is discharged from the outer wall structures 10 and 18 to the outside. Therefore, the base material 12 made of plywood can be protected from decay, the ventilation layer can be omitted from the outer wall structures 10 and 18, the wall thickness can be reduced, and a relatively inexpensive flame-retardant material is used for the exterior material 16. It becomes possible. Further, since the water-permeable structural member 6 made of foamed resin is used for the drain portion 4 and the water-permeable structural member 6 is buried in the vertical groove 3 of the board body 2, a high drainage effect can be obtained with an inexpensive material. There is also an advantage that the strength and the heat insulating effect of the outer wall heat insulating board 1 can be improved by suppressing the volume ratio occupied by the drain portion 4.
[0034]
<Second embodiment>
7 to 9 show a second embodiment of the present invention. As shown in FIG. 7, in the outer wall heat insulating board 21, the board main body 22 is divided in the width direction and includes four divided pieces 23. The drain portion 24 is interposed between the adjacent split pieces 23 and is provided so as to extend in the vertical direction in a state where the drain portion 24 is exposed on the installation surface and the non-installation surface of the board body 22.
[0035]
As shown in FIG. 8A, the drainage portion 24 uses the same water-permeable structural member 25 made of a foamed resin as in the first embodiment. In forming the outer wall heat insulating board 21, for example, as shown in (b), three water-permeable structural members 25 are arranged side by side inside the mold 7, and as shown in (c), The foamed resin base material 8 in which the embedded 25 is embedded is formed, and as shown in (d), the heated resin material 9 is used to cut the foamed resin base material 8 on a surface that vertically crosses the water-permeable structural material 25, and (e) As shown in (2), the board body 22 is formed from a cut piece of the foamed resin base material 8, and the drainage portion 24 is formed from the water-permeable structural material 25 exposed on the cut surface of the board body 22.
[0036]
The construction of the outer wall insulation board 21 is the same as that of the first embodiment. FIG. 9A illustrates the outer wall structure 10 of a wooden house, and FIG. 9B illustrates the outer wall structure 18 of a concrete house. Illustrated.
[0037]
According to the outer wall heat insulating board 21 and the outer wall structures 10 and 18 of the house according to this embodiment, in particular, since the drainage portion 24 is exposed on both the mounting surface and the non-installing surface of the board body 22, the exterior material 16 is provided. The rainwater that has entered from the joints 17 and the peripheral edge thereof flows down by the drainage section 24 and can be efficiently discharged. Further, after the divided pieces 23 of the board main body 22 and the water-permeable structural material 25 are formed in different processes, they can be integrated by heat fusion or an adhesive, and the outer wall heat insulating board 21 can be formed by various methods. There is also an advantage that it can be easily molded. Other functions and effects are the same as those of the first embodiment.
[Brief description of the drawings]
FIG. 1 is a perspective view of an outer wall heat insulating board according to a first embodiment of the present invention.
FIG. 2 is a perspective view showing a water-permeable structural member of the outer wall heat insulating board of FIG. 1;
FIG. 3 is a perspective view showing another embodiment of the water-permeable structural member.
FIG. 4 is a process explanatory view showing a method for forming the outer wall heat insulating board of FIG. 1;
FIG. 5 is a partial perspective view of an outer wall structure showing a construction form of the outer wall heat insulating board of FIG. 1;
FIG. 6 is a plan sectional view of the outer wall structure of FIG. 5;
FIG. 7 is a perspective view of an outer wall heat insulating board showing a second embodiment of the present invention.
8 is a process explanatory view showing a method for forming the outer wall heat insulating board of FIG. 7;
9 is a cross-sectional plan view of the outer wall structure showing the construction of the outer wall heat insulating board of FIG. 7;
FIG. 10 is a cross-sectional plan view showing a construction form of an outer wall board of the first conventional example.
FIG. 11 is a cross-sectional plan view showing a construction form of an outer wall board according to a second conventional example.
FIG. 12 is a cross-sectional plan view showing a construction of an outer wall board according to a third conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Outer wall heat insulation board 2 Board body 3 Vertical groove 4 Drainage part 5A Chip material 5B Straw-shaped extruded foam material 5C Bent rod-shaped extruded foam material 6 Water-permeable structural material 7 Mold 8 Foam resin base material 9 Heating wire 10 Outer wall structure Object 12 Base material for outer wall 13 Waterproof material 14 Reinforcement mesh 15 Adhesive 16 Exterior material 17 Joint 18 External wall structure 19 Concrete wall 21 Board for heat insulation of external wall 22 Board body 23 Split piece 24 Drainage part 25 Water-permeable structural material

Claims (9)

発泡樹脂製のボード本体に樹脂材料からなる排水部を、ボード本体の建付面に露出する状態で、縦方向に延びるように設けたことを特徴とする外壁断熱用ボード。A board for heat insulation of an outer wall, wherein a drainage portion made of a resin material is provided on a board body made of a foamed resin so as to extend in a vertical direction so as to be exposed on a mounting surface of the board body. ボード本体の建付面に縦溝を形成し、排水部を縦溝が埋まるように設けた請求項１に記載の外壁断熱用ボード。The board for heat insulation of an outer wall according to claim 1, wherein a vertical groove is formed on a mounting surface of the board body, and a drainage portion is provided so as to fill the vertical groove. ボード本体を幅方向に分割し、排水部をボード本体の分割片間に介在するように設けた請求項１に記載の外壁断熱用ボード。The outer wall heat insulating board according to claim 1, wherein the board main body is divided in the width direction, and a drain portion is provided between the divided pieces of the board main body. 排水部に発泡樹脂材料からなる通水構造材を用いた請求項１、２又は３に記載の外壁断熱用ボード。The outer wall heat insulating board according to claim 1, 2 or 3, wherein a water-permeable structural material made of a foamed resin material is used for the drainage part. 通水構造材をボード本体と同質の発泡樹脂材料で成形した請求項４に記載の外壁断熱用ボード。The board for heat insulation of an outer wall according to claim 4, wherein the water-permeable structural member is formed of a foamed resin material of the same quality as the board body. 発泡樹脂材料からなチップ材を凝集させて通水構造材を成形した請求項４又は５に記載の外壁断熱用ボード。The outer wall heat insulating board according to claim 4 or 5, wherein the water-permeable structural member is formed by aggregating a chip material made of a foamed resin material. 発泡樹脂材料からなるチップ材を凝集させて通水構造材を成形し、複数本の通水構造材を成形型内に並設し、成形型内で発泡樹脂材料を発泡させ、通水構造材が埋設された発泡樹脂母材を成形し、通水構造材を縦断する面で発泡樹脂母材を複数枚に切断し、発泡樹脂母材の切断片でボード本体を成形し、ボード本体の切断面に露出した通水構造材で排水部を成形したことを特徴とする外壁断熱用ボードの成形方法。A water-permeable structural material is formed by aggregating a chip material made of a foamed resin material, a plurality of water-permeable structural materials are juxtaposed in a molding die, and the foamed resin material is foamed in the molding die. The foamed resin base material in which is embedded is molded, the foamed resin base material is cut into a plurality of pieces on the surface that traverses the water-permeable structure material, and the board body is formed from the cut pieces of the foamed resin base material, and the board body is cut. A method for forming a board for heat insulation of an outer wall, wherein a drainage portion is formed from a water-permeable structural material exposed on a surface. 下地材に断熱材を介して外装材を設けた外壁構造物において、下地材の表面を防水材で被覆し、断熱材に請求項１〜６の何れか一項に記載の外壁断熱用ボードを用い、外壁断熱用ボードと下地材との間にスペーサ部材を介在させ、スペーサ部材で外壁断熱用ボードを下地材に貼り付け、外壁断熱用ボードの表面に補強メッシュを介してモルタルを塗り付け、モルタルの表面に外装材を設けたことを特徴とする外壁構造物。In an outer wall structure in which an exterior material is provided on a base material via a heat insulating material, the surface of the base material is covered with a waterproof material, and the outer wall heat insulating board according to any one of claims 1 to 6 is applied to the heat insulating material. Using, a spacer member is interposed between the outer wall insulation board and the base material, the outer wall insulation board is attached to the base material with the spacer member, and mortar is applied to the surface of the outer wall insulation board via a reinforcing mesh, An outer wall structure comprising an exterior material provided on a surface of a mortar. スペーサ部材に接着剤を用い、接着剤を外壁断熱用ボードと下地材との間に部分的に介在させ、接着剤で外壁断熱用ボードを下地材に貼り付けた請求項８に記載の外壁構造物。9. The outer wall structure according to claim 8, wherein an adhesive is used for the spacer member, the adhesive is partially interposed between the outer wall heat insulating board and the base material, and the outer wall heat insulating board is attached to the base material with the adhesive. object.

Images