JPH0138938B2 - - Google Patents
Info
- Publication number
- JPH0138938B2 JPH0138938B2 JP56066516A JP6651681A JPH0138938B2 JP H0138938 B2 JPH0138938 B2 JP H0138938B2 JP 56066516 A JP56066516 A JP 56066516A JP 6651681 A JP6651681 A JP 6651681A JP H0138938 B2 JPH0138938 B2 JP H0138938B2
- Authority
- JP
- Japan
- Prior art keywords
- board
- substrate
- present
- water repellent
- grooves
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000003973 paint Substances 0.000 claims description 10
- 230000002940 repellent Effects 0.000 claims description 8
- 239000005871 repellent Substances 0.000 claims description 8
- 239000004568 cement Substances 0.000 claims description 7
- 239000010425 asbestos Substances 0.000 claims description 5
- 229910052895 riebeckite Inorganic materials 0.000 claims description 5
- 239000000758 substrate Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Finishing Walls (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
本発明は建築用外装板に関し、石綿セメント板
で形成される基板１の裏面側に全面に亘つて多数
本の凹溝２を設けると共に基板１の裏面全面に撥
水剤層３を形成し、基板１の表面側に通気性のな
い塗料被膜４を施して成ることを特徴とする建築
用外装板に係るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an exterior board for construction, in which a large number of grooves 2 are provided over the entire back surface of a substrate 1 formed of an asbestos cement board, and the entire back surface of the substrate 1 is water repellent. The present invention relates to a building exterior board characterized by forming a paint layer 3 and applying a non-permeable paint film 4 to the surface side of a substrate 1.
屋根瓦、外壁板などとして用いられる建築用外
装板として石綿セメント板が一般的であるが、か
かる外装板は表面側が乾燥し裏面側が屋根下地や
壁下地よりも湿気を吸収して湿つた状態にあり、
反りが発生するおそれがあつた。 Asbestos-cement boards are commonly used as architectural exterior boards used as roof tiles, exterior wall boards, etc., but the front side of such exterior boards dries, while the back side absorbs more moisture than the roof or wall base and becomes damp. can be,
There was a risk that warping would occur.
本発明は上記の点に鑑みてなされたものであつ
て、反りが生じるおそれのない建築用外装板を提
供することを目的とするものである。 The present invention has been made in view of the above points, and an object of the present invention is to provide a building exterior board that is free from warping.
以下本発明を実施例により詳述する。基板１と
しては石綿セメント板を用いることができ、この
基板１の裏面側に第１図のように全面に亘つて多
数本の凹溝２，２…を設けてある。凹溝２の深さ
は基板の厚みが３〜８mmのとき0.5mm以上（0.5〜
2.0mm）に形成する。凹溝２によつて基板１の裏
面の表面積は大きくなり、裏面側の断面長さは表
面側の断面長さの1.1倍以上になる。凹溝２とし
ては第２図ａのように雨水の流下方向と平行な平
行線配置に設けたり、第２図ｂのように格子状配
置に設けたり、第２図ｃのように斜め格子状配置
に設けたりすることができる。 The present invention will be explained in detail below with reference to Examples. An asbestos cement board can be used as the substrate 1, and a large number of grooves 2, 2, . . . are provided on the back side of the substrate 1 over the entire surface as shown in FIG. The depth of the groove 2 should be 0.5 mm or more (0.5 to 8 mm) when the thickness of the board is 3 to 8 mm.
2.0mm). The groove 2 increases the surface area of the back surface of the substrate 1, and the cross-sectional length of the back surface is 1.1 times or more the cross-sectional length of the front surface. The grooves 2 may be arranged in parallel lines parallel to the direction of rainwater flow as shown in Fig. 2a, in a lattice arrangement as shown in Fig. 2b, or in a diagonal lattice arrangement as shown in Fig. 2c. It can be placed in any location.
さらに基板１の裏面の全面には通気性を害しな
い撥水剤を塗布して撥水剤層３が形成してある。
撥水剤としては例えば、シリコン樹脂エマルジヨ
ン、ポリエチレン樹脂エマルジヨン、パラフイン
ワツクスエマルジヨン、金属石けんサスペンジヨ
ン、またはこれらの二種以上の混合物を用いるこ
とができる。 Furthermore, a water repellent layer 3 is formed by coating the entire back surface of the substrate 1 with a water repellent agent that does not impair air permeability.
As the water repellent, for example, a silicone resin emulsion, a polyethylene resin emulsion, a paraffin wax emulsion, a metal soap suspension, or a mixture of two or more of these can be used.
また基板１の表面には全面に亘つて通気性及び
吸水性のない耐候性を有する合成樹脂塗料を塗布
して塗料被膜４が形成してある。かかる合成樹脂
塗料としてはアクリル樹脂、ポリウレタン樹脂、
アクリルウレタン樹脂の溶剤型又はエマルジヨン
型の塗料を用いることができる。 Further, a paint film 4 is formed on the entire surface of the substrate 1 by applying a synthetic resin paint having air permeability, non-water absorption, and weather resistance. Such synthetic resin paints include acrylic resin, polyurethane resin,
A solvent-type or emulsion-type paint of acrylic urethane resin can be used.
上記のようにして得た建築用外装板は、石綿セ
メント板で形成される基板の裏面側に全面に亘つ
て多数の凹溝が設けてあるので、屋根下地や壁下
地への接触面積が小さくなると共に下地との間の
通気がよくなつて、下地から基板への湿気の作用
が小さくなると共に、基板の裏面全面に施した撥
水剤層により基板の裏面における吸水を遮断で
き、また基板の表面側の通気性のない塗料を塗布
してあるので、基板の表面における乾燥を防ぐこ
とができ、この結果石綿セメント板で形成される
建築用外装板に含水率の差による反りが発生する
ことを防止できるものである。そして本発明にお
いては、基板に凹溝を加工したり撥水剤や塗料を
塗布したりすることによつて、上記のように反り
が発生することを防止できるようにしたものであ
り、基板を多層の複雑な構造にする必要なく簡単
な工程で製造することができるという効果を有す
るものである。 The architectural exterior board obtained as described above has a large number of grooves all over the back side of the asbestos-cement board, so the contact area with the roof base and wall base is small. At the same time, the ventilation between the substrate and the substrate is improved, reducing the effect of moisture from the substrate to the substrate, and the water repellent layer applied to the entire back surface of the substrate can block water absorption on the back surface of the substrate. Since the non-porous paint is applied to the surface side, it is possible to prevent the surface of the board from drying out, and as a result, the architectural exterior board made of asbestos cement board will warp due to the difference in moisture content. This is something that can be prevented. In the present invention, the above-mentioned warping can be prevented by forming grooves on the substrate and applying a water repellent or paint to the substrate. This has the effect that it can be manufactured through a simple process without the need for a complex multilayer structure.
次に本発明の効果を具体的データで示す。従来
の5.0mm厚の石綿セメント板大平板と本発明の処
理をした同厚の板より５×35cmの試験片の採る。
この試験片５を第３図ａのように飽水したフエル
ト６上に載置して15℃湿度60％の室内に３時間放
置したのち、第３図ｂのように反り変形する際の
反り上り量(h)を測定した結果、従来のものの反り
上り量は２〜５mmであつたのに対し本発明のもの
は０〜0.5mmであつた。 Next, the effects of the present invention will be shown with concrete data. A 5 x 35 cm test piece was taken from a conventional asbestos cement board with a thickness of 5.0 mm and a board of the same thickness treated according to the present invention.
This test piece 5 was placed on a felt 6 saturated with water as shown in Fig. 3a, and left in a room at 15°C and 60% humidity for 3 hours, and then warped as shown in Fig. 3b. As a result of measuring the amount of warpage (h), the amount of warpage of the conventional product was 2 to 5 mm, while that of the present invention was 0 to 0.5 mm.
第１図は本発明の一実施例の断面図、第２図
ａ，ｂ，ｃは同上における凹溝の配置状態を示す
図、第３図ａ，ｂは反りの試験を示す断面図であ
る。
１は基板、２は凹溝、３は撥水剤層、４は塗料
被膜である。
Fig. 1 is a sectional view of an embodiment of the present invention, Fig. 2 a, b, and c are views showing the arrangement of grooves in the same as above, and Fig. 3 a, b are sectional views showing a warpage test. . 1 is a substrate, 2 is a groove, 3 is a water repellent layer, and 4 is a paint film.
Claims (1)
全面に亘つて多数本の凹溝を設けると共に基板の
裏面全面に撥水剤層を形成し、基板の表面側に通
気性のない塗料被膜を施して成ることを特徴とす
る建築用外装板。1. A large number of grooves are provided on the entire back side of the board made of asbestos cement board, a water repellent layer is formed on the entire back side of the board, and a non-porous paint film is applied on the front side of the board. An architectural exterior board characterized by being made of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6651681A JPS57180746A (en) | 1981-04-30 | 1981-04-30 | Exterior plate for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6651681A JPS57180746A (en) | 1981-04-30 | 1981-04-30 | Exterior plate for building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57180746A JPS57180746A (en) | 1982-11-06 |
| JPH0138938B2 true JPH0138938B2 (en) | 1989-08-17 |
Family
ID=13318091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6651681A Granted JPS57180746A (en) | 1981-04-30 | 1981-04-30 | Exterior plate for building |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57180746A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59109833U (en) * | 1983-01-13 | 1984-07-24 | 株式会社クボタ | flat roof tiles |
| JPS59162226U (en) * | 1983-04-15 | 1984-10-30 | 松下電工株式会社 | Decorative veneer sheet |
| JPS61120823U (en) * | 1985-01-16 | 1986-07-30 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5413777U (en) * | 1977-06-28 | 1979-01-29 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52115124U (en) * | 1976-02-27 | 1977-09-01 | ||
| JPS5457825U (en) * | 1977-09-30 | 1979-04-21 |
-
1981
- 1981-04-30 JP JP6651681A patent/JPS57180746A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5413777U (en) * | 1977-06-28 | 1979-01-29 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57180746A (en) | 1982-11-06 |
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