JP3421677B2 - Stain resistant exterior wall structure - Google Patents
Stain resistant exterior wall structureInfo
- Publication number
- JP3421677B2 JP3421677B2 JP15947294A JP15947294A JP3421677B2 JP 3421677 B2 JP3421677 B2 JP 3421677B2 JP 15947294 A JP15947294 A JP 15947294A JP 15947294 A JP15947294 A JP 15947294A JP 3421677 B2 JP3421677 B2 JP 3421677B2
- Authority
- JP
- Japan
- Prior art keywords
- wall
- protective layer
- stain
- wall structure
- building
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Finishing Walls (AREA)
Description
【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は建築、構築物の外壁の化
粧面の汚染性を改善した外壁構造に関するものである。
【０００２】
【従来の技術】最近の住環境は大気汚染がひどく、乾式
外壁材、あるいはコンクリート等により構成された外壁
は数ケ月で相当に汚染されるのが現実であった。その対
策としては、水、洗浄剤等で洗浄すること。塵埃等
が付着しにくい平滑面にする。帯電防止塗膜とする。
揆水塗膜にする。エンボス模様、色によりカモフラ
ージュを図る。等が採られていた。
【０００３】
【発明が解決しようとする課題】しかしながら、上記
の外壁面を洗浄することは簡単で、好ましい方法である
が、足場の設営に時間とコストを要し、かつ回数が多い
と化粧面への傷、塗膜の剥離等も生ずる。また、前記
は化粧面の変化が期待できず、ガラス面と同様な仕上面
となり、金属の特長を発揮できない。
【０００４】さらに、前記の場合は導電体を添加した
塗料のため表面が平滑にならず、かつ導電体を均一に分
布することができず、塵、埃が偏在する不利があった。
【０００５】また、揆水塗膜は分布密度によって滴が偏
在し、これに塵、埃が付着するため、この塵、埃を核と
して汚れが拡大する欠点があった。
【０００６】さらに、前記は根本的な解決でなく、目
の錯覚によって汚れ度合を低減しているものであり、
色、柄にも選択幅が限定される不利があった。
【０００７】
【課題を解決するための手段】本発明はこのような欠点
を除去するため、建築、構築物の外壁表面の軒から土台
に向かって約１／３位を揆水性保護層で形成し、残り２
／３位を親水性保護層で被覆して外壁の汚れを雨水の弾
きによる収集で量的に流下すると共に、雨水と各保護層
のなじみにより汚れを置換する親水性保護層上をこの雨
水を量的に流下し、汚れをより多く流し去り、耐汚染性
を大幅に自己洗浄能力により改善できる耐汚染性外壁構
造を提案するものである。
【０００８】
【実施例】以下に、図面を用いて本発明に係る耐汚染性
外壁材の一実施例について詳細に説明する。図１、２は
本発明に係る耐汚染性外壁構造の一実施例を示す説明図
であり、１は建築、構築物、２は屋根、３は軒、４は外
壁、９は土台、１０は窓である。
【０００９】さらに説明すると、屋根２は切妻、寄棟、
その他の屋根の１種からなり、外壁４は図３、図４
（ａ）〜（ｊ）に示すように乾式外壁材Ａ、例えば金属
複合板（金属系サイディング材も含む）、金属板、窯業
系サイディング材、セメント押出板、ＡＬＣ板、タイ
ル、等で形成した壁、もしくはモルタル壁、コンクリー
ト壁で、最終の化粧層のみが付加されていない壁、所謂
平滑面、あるいは凹凸面に形成された壁Ｂであって、
軒、または屋根から約１／３Ｈの領域５に揆水性保護層
６を設け、これ以外の壁面、約２／３Ｈの領域７を親水
保護層８で被覆したものである。
【００１０】すなわち、揆水性保護層６は図３に示すよ
うに外壁Ｂ上にシリコンを主成分とする塗膜、シリコン
フィルム等のように水を弾く性質を具備した性能の材質
で外壁Ｂを被覆（保護）したものであり、親水性保護層
８は上記以外の２／３Ｈの領域７に該当する面の壁Ｂを
親水性塗料（常温乾燥型、焼付型）で被覆し、あるいは
これら近似したフィルムでこの領域を保護するものであ
る。なお、これら揆水性保護層６、親水性保護層８の厚
さは１０〜５０ミクロン位である。
【００１１】また、外壁４の１／３Ｈの領域５、２／３
Ｈの領域７のように揆水性保護層６、親水性保護層８を
選定したのは１／３Ｈの領域５に降った雨を結果的に集
めたような構造で流下するため２／３Ｈの領域７面をカ
バーする流量として十分である。勿論、２／３Ｈの領域
７にも雨水が存在し、この雨水と親水性保護層８の「な
じみ」により汚れが置換されている状態の外壁の化粧表
面を、上記１／３Ｈの領域５の領域の雨水と合流して流
下するため汚れを落とし、美しい外壁４とすることがで
きるものである。
【００１２】なお、乾式外壁材Ａで外壁４を形成する際
は、図３のように揆水性保護層６と親水性保護層８間の
境界線１１が存在することになるが、必ずしも、図示の
ように１枚の乾式外壁材Ａの化粧面上で分断することな
く乾式外壁材Ａの幅で区分してもよいものである。
【００１３】ここで、耐汚染性（非汚染性）の性能を比
較するため、図１に示す外壁４面でその性能比較試験を
した。その結果は下記の表１のようであった。
【表１】
【００１４】なお、実施例は乾式外壁材Ａとして図４
（ａ）に示すようなアルミニウム製金属サイディング材
よりなる乾式外壁材Ａ（芯材として合成樹脂発泡体充
填）を図２に示すように縦張りに施工したと仮定する。
そして上方１／３Ｈの領域５に揆水保護層６、例えばシ
リコン樹脂を主成分とする塗膜を約３０ミクロン現場吹
き付けし、下方の２／３Ｈの領域７に親水性保護層８、
例えば「商品名」「アレスセラフッソ（関西ペイント株
式会社製）」を約３０ミクロンを現場吹き付けし乾燥さ
せた。比較例としては常温乾燥型のポリウレタン樹脂を
主成分とする塗料を保護層として外壁４の全面に現場吹
き付けし、乾燥させた。なお、はある地方における１
年経過後の明度差（ΔＬ）の測定による比較を意味し、
は耐候試験後の汚れでサンシャインＷ−Ｏ−Ｍ照射時
間（２０００時間）後の明度差（ΔＬ）の比較を意味す
る。
【００１５】上記性能比較からも明らかなように、本発
明に係る耐汚染性外壁構造は汚れが雨水と親水性保護層
８とのなじみによって置換され、かつ揆水性保護層６に
よって雨水の収集機能と相まってより汚れが流下され、
外壁最表面所謂化粧面の汚れ性が大きく改善され、しか
も、耐候性も優れたものである。なお、揆水性保護層６
は雨水が流下して汚れをより落とす面積として１／３Ｈ
の領域５が好ましかった。
【００１６】以上、説明したのは本発明に係る耐汚染性
外壁構造の一実施例にすぎず、図５に示すようなビル構
造の外壁４にも使用できるものである。さらに万一の洗
浄の際、軒方向から水を流下し、洗浄すると前記した効
果により従前より綺麗に、かつ速く洗浄できるものであ
る。
【００１７】
【発明の効果】上述したように本発明に係る耐汚染性外
壁構造によれば、外壁化粧面の汚れ度合が大幅に改善
できる。耐候性が向上する。雨水が上方の揆水性保
護層で弾いた雨を量的に集めて流下し、親水性保護層と
雨水とのなじみによって汚れを置換し、この置換した状
態に雨水が勢いよく流れて、さらに汚れを落とすため長
期に亘って綺麗な化粧面を得ることができる。万一、
汚れが付着しても洗浄すれば極めて容易に落とすことが
できる。親水性保護層が親水性のため微量の湿気を吸
着し、静電気が帯電しにくく、塵埃が付着しにくいこと
と相まってさらに汚れにくい化粧面となる。等の特徴、
効果がある。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outer wall structure in which the decorative surface of an outer wall of a building or a building has improved stainability. 2. Description of the Related Art In recent years, the living environment has been severely polluted by air, and it has been a reality that the outer wall made of dry-type outer wall material or concrete is considerably contaminated in several months. As a countermeasure, wash with water, detergent, etc. Provide a smooth surface to which dust and the like do not easily adhere. An antistatic coating.
Make a repellent coating. Camouflage by embossed pattern and color. Etc. had been adopted. [0003] However, cleaning the outer wall surface is a simple and preferable method, but it takes time and cost to set up a scaffold. Scratches, peeling of the coating film, etc. also occur. Further, in the above, a change in the decorative surface cannot be expected, and the finished surface is similar to the glass surface, so that the characteristics of metal cannot be exhibited. Further, in the above case, the surface is not smooth because of the paint to which the conductor is added, and the conductor cannot be evenly distributed, so that there is a disadvantage that the dust is unevenly distributed. [0005] In addition, the water-repellent coating film has a disadvantage that the droplets are unevenly distributed depending on the distribution density, and the dust adheres to the droplets. [0006] Further, the above is not a fundamental solution, but rather reduces the degree of dirt by an optical illusion.
There was a disadvantage that the selection range was limited to colors and patterns. According to the present invention, in order to eliminate such a drawback, a water-repellent protective layer is formed at about 1/3 of the outer wall surface of a building or building from the eave to the base. , 2 remaining
The / 3 position is covered with a hydrophilic protective layer and the dirt on the outer wall is quantitatively flowed down by collecting rainwater, and the rainwater is passed over the hydrophilic protective layer, which replaces the dirt by the familiarity of the rainwater and each protective layer. The present invention proposes a stain-resistant outer wall structure capable of flowing down quantitatively, removing more dirt, and significantly improving stain resistance by self-cleaning ability. An embodiment of a stain-resistant outer wall material according to the present invention will be described below in detail with reference to the drawings. 1 and 2 are explanatory views showing one embodiment of a pollution-resistant outer wall structure according to the present invention, wherein 1 is a building and a building, 2 is a roof, 3 is an eave, 4 is an outer wall, 9 is a base, and 10 is a window. It is. [0009] To explain further, the roof 2 is gable,
The outer wall 4 is made of one of the other types of roofs shown in FIGS.
As shown in (a) to (j), it was formed of a dry outer wall material A, for example, a metal composite plate (including a metal siding material), a metal plate, a ceramic siding material, a cement extruded plate, an ALC plate, a tile, and the like. Wall, or mortar wall, concrete wall, a wall to which only the final decorative layer is not added, a so-called smooth surface, or a wall B formed on an uneven surface,
A water-repellent protective layer 6 is provided in a region 5 about 1 / 3H from the eaves or the roof, and the other wall surface and a region 7 about 2 / 3H are covered with a hydrophilic protective layer 8. That is, as shown in FIG. 3, the water repellent protective layer 6 is formed on the outer wall B with a material having a property of repelling water, such as a coating film containing silicon as a main component or a silicon film. The hydrophilic protective layer 8 coats (protects) the hydrophilic protective layer 8 and coats the wall B on the surface corresponding to the 2 / 3H region 7 with a hydrophilic paint (normal temperature drying type, baking type), or an approximation thereof. This area is protected by the film. The thickness of the water-repellent protective layer 6 and the hydrophilic protective layer 8 is about 10 to 50 microns. Further, a region 5, 2/3 of 1 / 3H of the outer wall 4 is provided.
The water-repellent protective layer 6 and the hydrophilic protective layer 8 were selected as in the H region 7 because the rainfall in the 1 / 3H region 5 was caused to flow down in a structure as if the rain was collected as a result. The flow rate covering the area 7 is sufficient. Of course, rainwater also exists in the 2 / 3H area 7, and the decorative surface of the outer wall in a state where dirt is replaced by the rainwater and the “family” of the hydrophilic protective layer 8 is changed to the above 1 / 3H area 5 The dirt can be removed and merged with the rainwater in the area, so that a beautiful outer wall 4 can be obtained. When the outer wall 4 is formed by the dry outer wall material A, a boundary line 11 between the water-resistant protective layer 6 and the hydrophilic protective layer 8 exists as shown in FIG. It is also possible to divide by the width of the dry outer wall material A without dividing it on the decorative surface of one dry outer wall material A as described above. Here, in order to compare the performance of the stain resistance (non-staining property), a performance comparison test was performed on the four outer walls shown in FIG. The results were as shown in Table 1 below. [Table 1] In the embodiment, the dry outer wall material A is shown in FIG.
It is assumed that a dry outer wall material A (filled with a synthetic resin foam as a core material) made of an aluminum metal siding material as shown in FIG.
Then, a water protective layer 6, for example, a coating mainly composed of silicone resin, is sprayed on the upper region 1 / 3H in the area 5 for about 30 microns, and a hydrophilic protective layer 8 is sprayed on the lower area 2 / 3H.
For example, about 30 microns of "trade name" and "Ales Serafusso" (manufactured by Kansai Paint Co., Ltd.) were sprayed on site and dried. As a comparative example, a paint containing a room temperature drying type polyurethane resin as a main component was sprayed on the entire surface of the outer wall 4 as a protective layer and dried. In addition, one in a certain area
It means a comparison by measuring the lightness difference (ΔL) after the passage of years,
Means the comparison of the lightness difference (ΔL) after the sunshine WOM irradiation time (2000 hours) with the stain after the weather resistance test. As is apparent from the above performance comparison, the stain-resistant outer wall structure according to the present invention has the function of collecting rainwater by the adaptation of rainwater and the hydrophilic protective layer 8 and the function of the rainwater protective layer 6. Dirt flows down in conjunction with
The stain on the outermost surface, the so-called decorative surface, is greatly improved, and the weather resistance is also excellent. The repellent protective layer 6
Is 1 / 3H as the area where rainwater flows down to remove more dirt
Region 5 was preferred. What has been described above is only one embodiment of the stain-resistant outer wall structure according to the present invention, and can be used for the outer wall 4 of a building structure as shown in FIG. Further, in the event of washing, if water is allowed to flow down from the eaves direction and the washing is performed, the washing effect can be made more beautifully and faster than before due to the above-mentioned effects. As described above, according to the stain-resistant outer wall structure of the present invention, the degree of stain on the decorative surface of the outer wall can be greatly improved. The weather resistance is improved. The rainwater collects and flows down the rain that has bounced off the upper repellent protective layer, and replaces the dirt by the familiarity of the hydrophilic protective layer and the rainwater. , It is possible to obtain a beautiful cosmetic surface over a long period of time. By any chance
Even if dirt adheres, it can be removed very easily by washing. Since the hydrophilic protective layer is hydrophilic, it absorbs a small amount of moisture, makes it difficult for static electricity to be charged, and makes it difficult for dirt to adhere, resulting in a cosmetic surface that is more resistant to contamination. Features such as
effective.
【図面の簡単な説明】
【図１】本発明に係る耐汚染性外壁構造の一実施例を示
す斜視図である。
【図２】本発明に係る耐汚染性外壁構造の一実施例を示
す斜視図である。
【図３】本発明に係る耐汚染性外壁構造の外壁の一部を
拡大して示す説明図である。
【図４】本発明に係る耐汚染性外壁構造を構成する乾式
外壁材の一例、例えば金属サイディング材を示す断面図
である。
【図５】本発明に係る耐汚染性外壁構造をビル等の建築
物に採用した際の一例を示す斜視図である。
【符号の説明】
Ａ 乾式外壁材
Ｂ 壁
１ 建築、構築物
２ 屋根
３ 軒
４ 外壁
５ １／３Ｈの領域
６ 揆水性保護層
７ ２／３Ｈの領域
８ 親水性保護層
９ 土台
１０ 窓
１１ 境界線BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing one embodiment of a stain-resistant outer wall structure according to the present invention. FIG. 2 is a perspective view showing one embodiment of a stain-resistant outer wall structure according to the present invention. FIG. 3 is an enlarged explanatory view showing a part of an outer wall of the stain-resistant outer wall structure according to the present invention. FIG. 4 is a cross-sectional view showing an example of a dry-type outer wall material, for example, a metal siding material that constitutes the stain-resistant outer wall structure according to the present invention. FIG. 5 is a perspective view showing an example in which the pollution-resistant outer wall structure according to the present invention is applied to a building such as a building. [Description of Signs] A Dry exterior wall material B Wall 1 Architecture, building 2 Roof 3 eaves 4 Exterior wall 5 1 / 3H area 6 Waterproof protective layer 7 2 / 3H area 8 Hydrophilic protective layer 9 Base 10 Window 11 Boundary line
フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) E04F 13/08 E04F 13/12 E04B 1/66 Continuation of the front page (58) Field surveyed (Int.Cl. 7 , DB name) E04F 13/08 E04F 13/12 E04B 1/66
Claims (1)
いて、軒から土台に向かって約１／３の領域を揆水性保
護層で被覆し、残り約２／３の領域を親水性保護層で被
覆したことを特徴とする耐汚染性外壁構造。(57) [Claims] [Claim 1] On a decorative surface of an outer wall in a building or a building, about 1/3 area from an eave to a base is covered with a water repellent protective layer, and the remaining about 2/3. A stain-resistant outer wall structure, characterized by covering a region with a hydrophilic protective layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15947294A JP3421677B2 (en) | 1994-06-16 | 1994-06-16 | Stain resistant exterior wall structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15947294A JP3421677B2 (en) | 1994-06-16 | 1994-06-16 | Stain resistant exterior wall structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH084238A JPH084238A (en) | 1996-01-09 |
| JP3421677B2 true JP3421677B2 (en) | 2003-06-30 |
Family
ID=15694522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15947294A Expired - Fee Related JP3421677B2 (en) | 1994-06-16 | 1994-06-16 | Stain resistant exterior wall structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3421677B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999032734A1 (en) * | 1997-12-22 | 1999-07-01 | Hitachi Construction Machinery Co., Ltd. | Swinging construction machine, and cab, equipment cover and counter-weight used for the machine |
-
1994
- 1994-06-16 JP JP15947294A patent/JP3421677B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH084238A (en) | 1996-01-09 |
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