JPH0567750B2 - - Google Patents
Info
- Publication number
- JPH0567750B2 JPH0567750B2 JP60020542A JP2054285A JPH0567750B2 JP H0567750 B2 JPH0567750 B2 JP H0567750B2 JP 60020542 A JP60020542 A JP 60020542A JP 2054285 A JP2054285 A JP 2054285A JP H0567750 B2 JPH0567750 B2 JP H0567750B2
- Authority
- JP
- Japan
- Prior art keywords
- cement mortar
- layer
- plate
- mesh
- mortar
- 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
- 239000011083 cement mortar Substances 0.000 claims description 74
- 239000000463 material Substances 0.000 claims description 31
- 239000011810 insulating material Substances 0.000 claims description 28
- 238000010276 construction Methods 0.000 claims description 24
- 239000004570 mortar (masonry) Substances 0.000 claims description 22
- 238000009413 insulation Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 15
- 239000002585 base Substances 0.000 claims description 14
- 239000003365 glass fiber Substances 0.000 claims description 14
- 239000011347 resin Substances 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 239000004033 plastic Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- 239000003513 alkali Substances 0.000 claims description 4
- 239000012774 insulation material Substances 0.000 description 21
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 229920006248 expandable polystyrene Polymers 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000003829 resin cement Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Building Environments (AREA)
Description
【発明の詳細な説明】
本発明は、建築物等の躯体壁面の外面に断熱構
造を構築する壁外断熱構築法に関し、更に詳しく
は壁外断熱工法の中で、発泡プラスチツク製板状
断熱材と仕上下他材又は表面材から成る複合パネ
ルを、そのまま躯体壁面の外面に取付ける所謂乾
燥式工法ではなく、壁面の外面に張設された板状
断熱材上に、現場施工でセメントモルタルを塗布
して、仕上下地層を設ける湿式工法によつて壁面
に外断熱構造を構築する工法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an external wall insulation construction method for constructing a thermal insulation structure on the outer surface of a building frame wall surface, and more specifically, the present invention relates to an external wall insulation construction method that uses foamed plastic plate-shaped insulation materials. Rather than using the so-called dry construction method, in which a composite panel consisting of top and bottom materials or surface materials is attached directly to the outside of the building wall, cement mortar is applied on-site to the plate-shaped insulation material stretched over the outside of the wall. The present invention relates to a construction method for constructing an external heat insulation structure on a wall surface by a wet construction method in which a finishing ground layer is provided.
建築物等の断熱を、躯体壁面の外面に発泡プラ
スチツク製板状断熱材を設けて行う壁外断熱の方
法は、その内面に板状断熱材を設ける壁内断熱の
方法と比較して、多くの利点を有することは周知
で、近年、特に寒冷地において多用される傾向に
ある。 The method of external insulation of buildings, etc., in which a plate-shaped insulation material made of foamed plastic is installed on the outside surface of the building frame wall, has a higher cost compared to the method of in-wall insulation, in which a plate-shaped insulation material is installed on the inner surface. It is well known that it has the following advantages, and in recent years it has been increasingly used, especially in cold regions.
従来、湿式工法によつて壁外断熱構造を構築し
た壁構造体は、第４図に示すようなものである
が、この場合には、施工は、次に示すような手順
で行なつている。先ず、躯体壁面ａの外面に、発
泡プラスチツク製板状断熱材ｂを張設する。その
上に、直接セメントモルタルを塗布して、仕上下
地層ｃを設ける。更に、仕上下地層ｃの上に適宜
塗料等を塗布して、仕上層ｄを設ける。しかし、
この工法で施工した壁構造体では、クラツクの発
生は避けられず、少なくとも通常のセメントモル
タルを塗布して、仕上下地層ｃを設けたときに
は、クラツクを生じ易く、躯体壁面ａの防水性能
の低下を招いたり、それによる内部構造や仕上層
ｄの劣化等の問題が指摘されている。ところで、
仕上下地層ｃにおけるクラツクの発生は、セメン
トモルタル層自体の乾燥時の収縮応力にそれ自身
が耐えられなかつたり、温度変化による部材内並
びに部材間の線膨張率の差により応力が発生する
等に由来する。そして、発生した内部応力を軽減
する一つの方法として、板状断熱材に応力を伝達
して分散すると言う方法があるが、板状断熱材と
それらセメントモルタル層の固着力は、セメント
モルタルを横向きの作業でのこて塗りの押え力だ
けで塗布する関係上、さして強固ではなく、板状
断熱材に内部応力を充分に伝達できるものではな
いのである。 Conventionally, a wall structure with an external wall insulation structure constructed using the wet construction method is shown in Figure 4, but in this case, construction is carried out according to the following steps. . First, a plate-shaped heat insulating material b made of foamed plastic is stretched on the outer surface of the wall surface a of the building frame. On top of that, cement mortar is directly applied to provide a finishing ground layer c. Further, a paint or the like is appropriately applied on top of the finishing base layer c to provide a finishing layer d. but,
In wall structures constructed using this construction method, the occurrence of cracks is unavoidable, and at least when ordinary cement mortar is applied and a finishing ground layer c is provided, cracks are likely to occur and the waterproof performance of the frame wall surface a decreases. It has been pointed out that this may lead to problems such as deterioration of the internal structure and the finish layer d due to this. by the way,
The occurrence of cracks in the finishing ground layer c is caused by the inability of the cement mortar layer itself to withstand the shrinkage stress when it dries, or by the generation of stress due to differences in linear expansion coefficients within and between members due to temperature changes. Originates from One way to reduce the generated internal stress is to transmit the stress to the plate-shaped insulation material and disperse it, but the adhesion force between the plate-shaped insulation material and the cement mortar layer is such that the cement mortar is Because it is applied using only the pressing force of the trowel during the process, it is not very strong and cannot sufficiently transmit internal stress to the plate-shaped heat insulating material.
こうしたことから、仕上下地層ｃにクラツクの
発生を防止する方法として、耐アルカリ性を有す
るガラス繊維混入のプレミスクされたセメントモ
ルタルを用いたり、第５図に示すように仕上他下
地層ｃ中に網状物ｅを埋設することが考え出され
た。しかし、耐アルカリ性を有するガラス繊維混
入のプレミクスされたセメントモルタルの現場塗
布の場合には、混入できる繊維量は、乾燥状態の
セメントモルタルに対して重量比で３％程度であ
り、この程度ではクラツクの発生を充分に防止で
きないだけでなく、この程度の混入繊維量でも、
塗布作業は非常い困難で、平滑面、コーナー部、
開口部周り等が納まり難く、美麗な外観を仕上げ
ることができないと言う問題がある。又、仕上下
地層ｃ中にラス（リプラス等の剛性、強度を大き
いもの）、グラスメツシユ等の網状物ｅを埋性す
る場合にも、次に示すような問題がある。先ず、
網状物ｅを板状断熱材ｂ上に塗布するセメントモ
ルタルの下他材として使用したときには、セメン
トモルタル層の収縮応力は網状物に負担されるこ
とになるが、網状物ｅ表面から仕上下地層ｃの主
体を成すセメントモルタル層表面が離間すればす
る程、その収縮応力はセメントモルタル層自体に
かかつて、クラツクが生じ易くなり、一方塗布す
るセメントモルタルの厚みを小さくすれば、その
外壁である仕上下地層ｃに要求される基本的な強
度が満足できなくなる。又、網状物ｅをクラツク
の発生を防止する上で有効な仕上下地層ｃの表面
側に位置させるためには、板状断熱材ｂと仕上下
地層ｃの主体を成すセメントモルタルの固着力が
脆弱なことから、必然的に重量物であるセメント
モルタル層の厚みを大きくすることができなくな
つて、外部からの衝撃力に抗し得だけの強度を期
待できなくなる。更に、接着力の強い樹脂モルタ
ルを塗布して、仕上下地層ｃを設けることも考え
られるが、透湿抵抗の大きい樹脂モルタルを厚く
塗布することは、外断熱の利点を損なうことにな
る。 For this reason, as a method to prevent the occurrence of cracks in the finishing ground layer c, pre-mixed cement mortar containing alkali-resistant glass fibers is used, and as shown in Fig. The idea was to bury things e. However, in the case of on-site application of premixed cement mortar mixed with alkali-resistant glass fibers, the amount of fibers that can be mixed is about 3% by weight of the dry cement mortar, and this level can cause cracks. Not only is it not possible to sufficiently prevent the occurrence of
Coating work is extremely difficult, and can be applied to smooth surfaces, corners,
There is a problem in that it is difficult to fit around the opening, etc., and it is not possible to create a beautiful appearance. Further, when a net-like material e such as lath (replas or other material with high rigidity and strength) or glass mesh is buried in the finishing ground layer c, the following problems arise. First of all,
When the net material e is used as a lower material for cement mortar applied on the plate-shaped heat insulating material b, the shrinkage stress of the cement mortar layer will be borne by the net material, but the The further apart the surface of the cement mortar layer, which is the main component of The basic strength required for the finishing ground layer c cannot be satisfied. In addition, in order to position the net material e on the surface side of the finishing ground layer c, which is effective in preventing the occurrence of cracks, it is necessary to increase the adhesion of the plate-shaped heat insulating material b and the cement mortar, which is the main component of the finishing ground layer c. Because of its brittleness, it is impossible to increase the thickness of the cement mortar layer, which is inevitably heavy, and it is no longer possible to expect sufficient strength to withstand external impact forces. Furthermore, it is conceivable to apply a resin mortar with strong adhesive strength to provide a finishing base layer c, but applying a thick resin mortar with a high moisture permeation resistance will impair the advantage of external heat insulation.
こうした従来の問題点に鑑みて発明されたのが
本発明に係る壁外断熱構築法で、その要旨とする
ところは、建築物等の躯体壁面の外面に張設され
た発泡プラスチツク製板状断熱材上に、樹脂モル
タルを下地調整しながら塗布することで、板状断
熱材の表面の下地調整と、板状断熱材とその上に
塗布して設けるセメントモルタルを主体とする仕
上下地層の固着力を強固にして、それによりセメ
ントモルタル層自体の乾燥時の収縮応力、板状断
熱材とセメントモルタル層の線膨張率の差により
生じる応力や温度変化によるセメントモルタル層
自体の伸縮応力を板状断熱材に確実に分散して伝
達する調整層を設け、その上にセメントモルタル
を充分な強度を有する厚みに塗布して、このセメ
ントモルタル塗布面上に網状物を張設し、次にセ
メントモルタルを網状物が埋設状態になるまで更
に塗布して、セメントモルタルを主体とする網状
別を表面側に位置させた仕上下地層を設ける点に
ある。このようにすることで、板状断熱材上にセ
メントモルタルを充分な強度を有する厚みにまで
塗布できるとともに、セメントモルタル層中で網
状物を表面側に位置させることで、網状物によ
り、同程度の強度を有しているときには、網状物
を張設しない場合と比較して、セメントモルタル
を主体とする仕上下地層の厚みを相対的に薄く設
定して、クラツクの発生を確実に防止可能なだけ
でなく、重量物であるセメントモルタル層の重量
を軽減して、不意のセメントモルタル層の落下を
も防止できると言うものである。 In view of these conventional problems, the method for constructing external wall insulation according to the present invention was invented. By applying resin mortar on the material while adjusting the base, it is possible to prepare the surface of the plate-shaped insulation material and to harden the finished base layer, which is mainly composed of the plate-shaped insulation material and the cement mortar applied on top of it. By strengthening the bonding force, the plate-like structure reduces the shrinkage stress of the cement mortar layer itself when it dries, the stress caused by the difference in linear expansion coefficient between the plate-shaped insulation material and the cement mortar layer, and the expansion and contraction stress of the cement mortar layer itself due to temperature changes. A conditioning layer is provided on the insulation material to ensure distribution and transmission, and cement mortar is applied on top of it to a thickness that has sufficient strength. A mesh is stretched over the surface coated with cement mortar. is further applied until the net-like material becomes buried, thereby providing a finishing ground layer with the net-like material mainly composed of cement mortar located on the surface side. By doing this, it is possible to apply cement mortar on the plate-shaped heat insulating material to a thickness that provides sufficient strength, and by positioning the net-like material on the surface side in the cement mortar layer, the net-like material can be applied to the same level strength, it is possible to reliably prevent the occurrence of cracks by setting the thickness of the finishing ground layer, which is mainly made of cement mortar, to be relatively thin compared to when no netting is installed. In addition, it is possible to reduce the weight of the heavy cement mortar layer and prevent the cement mortar layer from falling unexpectedly.
本発明に係る壁外断熱構築法の詳細を更に添付
の図面に基づき説明する。先ず、第１図には本発
明に係る工法で壁外断熱構造を構築した壁構造体
の縦断面図を示している。尚、第１図中ＡはPC
板、RC造り、ALC層又は木造等の建築物等の躯
体壁面である。そして、その外面には、発泡ポリ
スチレン製等の発泡プラスチツク製板状断熱材１
を接着剤や同時打込みにより張設している。又、
この板状断熱材１上には、樹脂モルタルを下地調
整しながら塗布して、下地調整と固着力を強固に
するのを兼ねた調整層Ｂを設けている。更に、そ
の上にセメントモルタル２を充分な強度を有する
厚みに塗布して、このセメントモルタル塗布面
２′上に網状物３を張設し、次にセメントモルタ
ル４を網状物３が埋設状態になるまで更に塗布し
て、セメントモルタル２，４を主体とする網状物
３を表面側に位置させた仕上下地層Ｄを設けてい
る。そして、その上には適宜塗料を塗布する等し
て仕上層Ｅを設けている。ここで、塗布とは、ス
プレーを用いた吹付けによる塗り、こて塗り、は
け塗り等を包括する概念である。 The details of the method for constructing external wall insulation according to the present invention will be further explained based on the attached drawings. First, FIG. 1 shows a longitudinal sectional view of a wall structure in which an external wall insulation structure is constructed using the construction method according to the present invention. In addition, A in Figure 1 is a PC.
It is the frame wall surface of buildings, etc. made of boards, RC construction, ALC layer, or wooden construction. The outer surface is covered with a plate-shaped heat insulating material 1 made of foamed plastic such as foamed polystyrene.
are attached using adhesive or simultaneous driving. or,
On this plate-shaped heat insulating material 1, a resin mortar is applied while adjusting the base, and an adjustment layer B is provided which serves both to adjust the base and to strengthen the adhesion force. Further, cement mortar 2 is applied thereon to a thickness that has sufficient strength, and a mesh 3 is stretched over this cement mortar application surface 2', and then cement mortar 4 is applied so that the mesh 3 is buried. The finished base layer D is further coated until it is coated, and a net-like material 3 mainly composed of cement mortars 2 and 4 is positioned on the surface side. Then, a finishing layer E is provided thereon by applying a paint as appropriate. Here, application is a concept that includes application by spraying, troweling, brushing, and the like.
ところで、調整層Ｂは、強度、接着性、施工
性、経済性の面から、前述したように樹脂モルタ
ルを薄く塗布して設けている。尚、樹脂モルタル
とは、セメントモルタルに酢酸ビニル、アクリ
ル、スチレンブタジエンラテツクス等の接着性を
有するエマルジヨンを添加したものである。ここ
で、セメントを用いたモルタルにするのは、調整
層Ｂの上に、仕上下地層Ｄの主体を成すセメント
モルタル２を直接重ねるからで、調整層Ｂを成す
樹脂モルタルと仕上下地層Ｄの主体を成すセメン
トモルタル２が良く接着して、強度が向上するこ
とによる。そして、調整層Ｂを成す樹脂モルタル
の骨材としては、硅砂、砂等が用いられる。しか
し、調整層Ｂは、場合によつては、骨材を抜いた
樹脂セメントペーストを塗布して設けることもで
きる。そして、調整層Ｂは樹脂モルタルを１〜２
mm程度の厚みに塗布して設けるのが、その後の作
業上、例えば板状断熱材１の表面の不陸を調整し
て、板状断熱材１上にセメントモルタル２を強固
に固着する上で好ましいと言える。 By the way, the adjustment layer B is provided by applying a thin layer of resin mortar, as described above, from the viewpoints of strength, adhesiveness, workability, and economy. The resin mortar is a cement mortar to which an adhesive emulsion such as vinyl acetate, acrylic, or styrene-butadiene latex is added. Here, the mortar using cement is used because the cement mortar 2, which forms the main part of the finishing ground layer D, is directly laid on top of the adjustment layer B. This is because the cement mortar 2 forming the main body adheres well and the strength is improved. As the aggregate of the resin mortar constituting the adjustment layer B, silica sand, sand, etc. are used. However, depending on the case, the adjustment layer B can also be provided by applying a resin cement paste from which aggregate has been removed. Then, the adjustment layer B contains 1 to 2 resin mortar.
Applying the cement mortar to a thickness of about mm is recommended for subsequent work, for example, to adjust the unevenness of the surface of the plate-shaped heat insulating material 1 and to firmly fix the cement mortar 2 on the plate-shaped heat insulating material 1. It can be said that it is preferable.
一方、網状物３は、グラスメツシユ、ラス、溶
接金鋼、ポリプロピレンメツシユ、合成繊維製メ
ツキ等を用いることができる。しかし、セメント
モルタル塗布面２′上に張設する際に、コーナー
部、開口部周り等で端部を持上げて作業すること
があり、その作業上から、腰のないものが好まし
く、しかもアルカリ性のセメントモルタル中に埋
設されるから、グラスメツシユとして線径0.6mm
の耐アルカリ性を有するガラス繊維メツシユを用
いることが考慮される
更に、仕上下地層Ｄの主体を成すセメントモル
タル中にガラス繊維を混入して強化することも適
宜考慮される。ここで、セメントモルタル中に混
入する繊維量は、乾燥状態のセメントモルタルに
対して重量比で４％以下が好ましく、実際の使用
に際しては、繊維を細断したものをセメントモル
タルに対して重量比で１〜２％程度混入するのが
作業上便利である。 On the other hand, the mesh 3 may be made of glass mesh, lath, welded steel, polypropylene mesh, synthetic fiber plating, or the like. However, when laying the cement on the surface 2' coated with cement mortar, you may have to lift the edges around corners, openings, etc., and from the viewpoint of this work, it is preferable to use a material that is not stiff, and also an alkaline material. Since it is buried in cement mortar, the wire diameter is 0.6 mm as a glass mesh.
It is considered that a glass fiber mesh having an alkali resistance of Here, the amount of fibers mixed in the cement mortar is preferably 4% or less by weight relative to the dry cement mortar.In actual use, the fibers are shredded and the weight ratio relative to the cement mortar is 4% or less. It is convenient for work to mix in about 1 to 2%.
又、調整層Ｂ上に、ガラス繊維混入のセメント
モルタルを塗布する方法としては、プレミクスし
てこて塗りする方法やスプレーの用いて直接吹付
ける方法が考えられる。先ず、プレミクスしてこ
て塗りする方法では、セメントモルタルとガラス
繊維並びに水を混合して、撹拌する際に、ガラス
繊維が折れたり、塗布した後、繊維の方向がばら
ばらになつたり、セメントモルタル塗布面上に網
状物を張設して、ガラス繊維混入のセメントモル
タルを網状物を埋設するようにこて塗りするとき
に、横向き作業であることから、こて塗りの押え
力を強くし難かつたり、こてによる手塗りでは網
状物の空間を完全に埋めることができ難いとの理
由によつて、所望の強度が得られないおそれがあ
る。一方、スプレーを用いて直接吹付ける方法で
は、繊維の方向を一定にすることができるだけで
なく、吹出し圧によつて網状物の空間をも完全に
埋めることができる。こうしたことから、仕上下
地層Ｄを強固に仕上げるためには、この方法によ
るのが望ましいと言える。 Further, as a method of applying cement mortar mixed with glass fibers onto the adjustment layer B, there may be a method of premixing the cement mortar and applying it with a trowel, or a method of directly spraying it using a sprayer. First, in the method of premixing and troweling cement mortar, glass fibers, and water are mixed and stirred, the glass fibers may break, or the fibers may become oriented in different directions after application, or the cement mortar may not be applied properly. When a mesh material is stretched over a surface and a cement mortar mixed with glass fiber is troweled to bury the mesh material, it is difficult to apply strong pressure when applying the trowel because the work is done horizontally. Alternatively, the desired strength may not be obtained because it is difficult to completely fill the spaces in the mesh by hand painting with a trowel. On the other hand, in the method of direct blowing using a spray, not only can the direction of the fibers be kept constant, but also the spaces in the mesh can be completely filled by the blowing pressure. For these reasons, it can be said that it is desirable to use this method in order to finish the finishing ground layer D strongly.
而して、調整層Ｂ上にガラス繊維混入のセメン
トモルタルを充分な強度を有する３〜４mmの厚み
に塗布して、このセメントモルタル塗布面上に網
状物３を張設し、次にガラス繊維混入のセメント
モルタルを網状物３が完全に埋設状態いなつて、
セメントモルタル層表面と網状物３表面間が２mm
以下になるように更に塗布して、ガラス繊維混入
のセメントモルタルを主体とする網状物３を表面
側に位置させた仕上下地層Ｄを設けるのである。
ここで、セメントモルタル層表面、即ち仕上下地
層Ｄ表面と網状物３表面間が２mmを越えると、ク
ラツクを生じ易くなるから、注意を要する。 Cement mortar mixed with glass fiber is applied on the adjustment layer B to a thickness of 3 to 4 mm with sufficient strength, and the mesh 3 is stretched over the surface coated with the cement mortar. The mesh material 3 completely buries the mixed cement mortar,
The distance between the cement mortar layer surface and the mesh 3 surface is 2mm.
The coating is further applied as shown below to provide a finished base layer D in which a net-like material 3 mainly made of cement mortar mixed with glass fibers is positioned on the surface side.
Note that if the distance between the surface of the cement mortar layer, that is, the surface of the finished base layer D, and the surface of the net-like material 3 exceeds 2 mm, cracks are likely to occur, so care must be taken.
従来、ガラス繊維混入のセメントモルタルを外
装材に用いた場合には、表面にガラス繊維が毛ば
立ち、美感上好ましくなかつたが、本発明に係る
工法では、仕上下地層Ｄの表面側に位置する網状
物３によつて、毛ば立ちを防止することが判明し
ており、毛ば立ちのない美麗な外観を現出する効
果を奏し、又網状物３を埋設することで、仕上下
地層Ｄの厚みを相対的に薄くできるから、高価な
ガラス繊維混入のセメントモルタルの使用量を少
なくして、コストの低減にも効果があるのであ
る。 Conventionally, when cement mortar mixed with glass fiber was used as an exterior material, the glass fibers would become fluffy on the surface, which was not aesthetically pleasing.However, in the construction method of the present invention, It has been found that the mesh material 3 prevents fuzzing, and has the effect of creating a beautiful appearance without fuzzing. Since the thickness of D can be made relatively thin, the amount of expensive glass fiber-containing cement mortar used can be reduced, which is effective in reducing costs.
次に、第２図並びに第３図には、本発明に係る
工法で壁外断熱構造を構築するにあたり、躯体壁
面Ａの外面と板状断熱材１の結合をモルタル団子
５とアンカー６を用いる他の工法を示している。
そして、第２図にはモルタル団子の配置状態の説
明図を示している。又、第３図にはこのような本
発明に係る他の工法で壁外断熱構造を構築した壁
構造体の縦断面図を示している。ところで、建築
物等の躯体壁面ＡがRC造り等のコンクリート造
りの場合には、発泡プラスチツク製板状断熱材１
は壁面Ａに同時打込みにより張設するのが好まし
いが、打製済のコンクリート壁面Ａに板状断熱材
１を強固に取付けるには、ここに示す方法を採用
するのが好ましいと言える。ここでは、施工は、
次に示すような手順で行う。先ず、掃除された壁
面Ａの外面に第２図に示すようにモルタル団子５
をこてで塗り付ける。このとき、躯体壁面Ａに予
め接着剤を薄く塗布しておいてもよい。尚、モル
タル団子５は、200mm程度で直径で、３〜６mm程
度の厚みを目処に壁面Ａの外面に不陸に合わせて
厚みを調整するものである。ここで、モルタル団
子５は予め板状断熱材１の継ぎ目に対応させて置
き、板状断熱材１の安定を図るもので、壁面Ａの
外面に擦込むようにこてで塗り付ける。次に、板
状断熱材１のモルタル団子５に接合する位置に予
め接着剤を塗布して、板状断熱材１をモルタル団
子５に圧着する。そして、板状断熱材１の外側か
らドリルで第３図い示すように座ぐり部１ａを形
成した後、引続きアンカー６の下孔７を壁面Ａに
至るまで穿孔して、アンカー６と打込む。ところ
で、前述した第１図に示す壁構造体では、板状断
熱材１上に調整層Ｂを介して設けたセメントモル
タル２，４を主体とする表面側に網状物３を位置
させた仕上下地層Ｄは、調整層Ｂを通じて板状断
熱材１と強固に固着しているが、ここに示すよう
にアンカー６を用いることで、壁面Ａに板状断熱
材１一層強固に取付けることができる。 Next, FIGS. 2 and 3 show that mortar balls 5 and anchors 6 are used to connect the outer surface of the building frame wall surface A and the plate-shaped heat insulating material 1 when constructing an external wall insulation structure using the construction method according to the present invention. Other construction methods are shown.
FIG. 2 shows an explanatory diagram of the arrangement of mortar balls. Further, FIG. 3 shows a longitudinal cross-sectional view of a wall structure in which an external wall insulation structure is constructed using another construction method according to the present invention. By the way, if the building frame wall A is made of concrete such as RC construction, foamed plastic plate-shaped insulation material 1
It is preferable to install the plate-shaped heat insulating material 1 on the wall surface A by simultaneous pouring, but in order to firmly attach the plate-shaped heat insulating material 1 to the cast concrete wall surface A, it is preferable to adopt the method shown here. Here, the construction is
Follow the steps shown below. First, mortar balls 5 are placed on the outer surface of the cleaned wall surface A as shown in FIG.
Apply with a trowel. At this time, adhesive may be applied thinly to the wall surface A of the building frame in advance. The mortar ball 5 has a diameter of about 200 mm, and its thickness is adjusted to match the unevenness of the outer surface of the wall surface A, with the aim of having a thickness of about 3 to 6 mm. Here, the mortar balls 5 are placed in advance in correspondence with the joints of the plate-shaped heat insulating material 1 to stabilize the plate-shaped heat insulating material 1, and are rubbed onto the outer surface of the wall surface A with a trowel. Next, an adhesive is applied in advance to the position of the plate-shaped heat insulating material 1 to be bonded to the mortar lump 5, and the plate-shaped heat insulating material 1 is crimped onto the mortar lump 5. Then, after forming a counterbore portion 1a from the outside of the plate-shaped heat insulating material 1 with a drill as shown in Figure 3, the pilot hole 7 of the anchor 6 is subsequently drilled all the way to the wall surface A, and the anchor 6 is driven in. . By the way, in the wall structure shown in FIG. 1 described above, a finishing layer is used in which the net-like material 3 is located on the surface side mainly composed of cement mortar 2 and 4 provided on the plate-shaped heat insulating material 1 via the adjustment layer B. The stratum D is firmly fixed to the plate-shaped heat insulating material 1 through the adjustment layer B, but by using the anchors 6 as shown here, the plate-shaped heat insulating material 1 can be more firmly attached to the wall surface A.
尚、ここに用いる板状断熱材１は発泡プラスチ
ツク製であるから、火災による板状断熱材１の溶
融に伴う仕上下地層Ｄの落下を確実に防止するた
め、アンカー６頭部にグラシメツシユ、ラス、溶
接金網、ポリプロピレンメツシユ、合成繊維製メ
ツシユ等のアンカーメツシユ６ａを具備させて、
このアンカーメツシユ６ａを網状物３内面側に位
置するようにセメントモルタルを主体とする仕上
下地層Ｄ中に埋込むことも考慮される。このよう
なアンカーメツシユ６ａを用いる場合には、先ず
アンカーメツシユ６ａを頭部に通したアンカー６
を座ぐり部１ａを有する下孔７に打込んで、壁面
Ａに板状断熱材１を固定する。次に、アンカーメ
ツシユ６ａを持上げて、座ぐり部１ａにセメント
モルタルを板状断熱材１の表面位置まで塗布す
る。この後、板状断熱材１上に、樹脂モルタルを
塗布して調整層Ｂを設ける。そして、その上にセ
メントモルタル２をアンカーメツシユ６ａが完全
に埋設状態になり、しかも充分な強度を有する厚
みに塗布する。次に、そのセメントモルタル塗布
面２′上に網状物３を張設し、その後セメントモ
ルタル４を網状物３が埋設状態になるまで更に塗
布して、仕上下地層Ｄを設ける。更に、その上に
適宜仕上層Ｅを設けるものである。 Since the plate-shaped heat insulating material 1 used here is made of foamed plastic, in order to reliably prevent the finishing ground layer D from falling due to the melting of the plate-shaped heat insulating material 1 due to a fire, a glass mesh or lath is attached to the head of the anchor 6. , an anchor mesh 6a such as a welded wire mesh, a polypropylene mesh, a synthetic fiber mesh, etc.
It is also considered to embed the anchor mesh 6a in the finishing ground layer D mainly composed of cement mortar so as to be located on the inner surface side of the mesh 3. When using such an anchor mesh 6a, first insert the anchor mesh 6a through the head of the anchor 6.
is driven into the prepared hole 7 having the counterbore portion 1a to fix the plate-shaped heat insulating material 1 to the wall surface A. Next, the anchor mesh 6a is lifted and cement mortar is applied to the counterbore portion 1a up to the surface of the plate-shaped heat insulating material 1. Thereafter, resin mortar is applied onto the plate-shaped heat insulating material 1 to provide an adjustment layer B. Then, cement mortar 2 is applied thereon to a thickness such that the anchor mesh 6a is completely buried and has sufficient strength. Next, a mesh material 3 is stretched over the cement mortar application surface 2', and then cement mortar 4 is further applied until the mesh material 3 is buried, thereby providing a finished base layer D. Furthermore, a finishing layer E is provided thereon as appropriate.
以上のような本発明に係る壁外断熱構築法で施
工された壁構造体では、発泡プラスチツク製板状
断熱材とセメントモルタルを主体とする仕上下地
層は、板状断熱材の表面の下地調整と互いの固着
力を強固にするのを兼ねた調整層を介して取付け
られているから、セメントモルタル層自体の乾燥
時の収縮応力、板状断熱材とセメントモルタル層
の線膨張率の差により生じる応力や温度変化によ
るセメントモルタル層自体の伸縮応力を板状断熱
材に確実に分散して伝達するとともに、仕上下地
層の表面側には網状物が埋設状態で位置している
から、セメントモルタルを主体とした仕上下地層
にクラツクが発生するのを防止することが可能と
なる。又、仕上下地層は、クラツクが発生し難
く、板状断熱材に強固に固着して、網状物が存在
しない場合と比較して、厚みを薄くして軽量化が
図られるから、不意の落下防止に有効である。更
に、目地を少なくして大きな自由な面に形成した
り、美麗は外観を形成することもでき、例えば躯
体壁面を曲面とする等自在な壁面を形成すること
も可能となる。加えて、透湿抵抗の大きい樹脂モ
ルタルは、板状断熱材の表面の下地調整とセメン
トモルタル層との固着力を強固にするためにだけ
塗布されるから、板状断熱材上に薄く塗布するだ
けで、所期の目的が達成され、透湿抵抗の小さい
セメントモルタルを主体として設けられるから、
板状断熱材の水分蓄積量が多くなることがなく、
壁外断熱構造の効果が有効に発揮される。又、板
状断熱材の水分蓄積量が少なくなることによつ
て、特に寒期に、板状断熱材中の水分が結氷し
て、調整層を成す樹脂モルタルの損傷を与えるこ
とが少なくなり、寿命を長くする上でも有効であ
る。 In the wall structure constructed by the external wall insulation construction method according to the present invention as described above, the finishing ground layer mainly consists of the foamed plastic plate-shaped insulation material and cement mortar, which is used to prepare the surface of the plate-shaped insulation material. Because it is attached through an adjustment layer that also serves to strengthen the adhesion of each other, due to the shrinkage stress of the cement mortar layer itself when drying, and the difference in linear expansion coefficient between the plate-shaped insulation material and the cement mortar layer. In addition to reliably dispersing and transmitting the expansion and contraction stress of the cement mortar layer itself due to stress and temperature changes to the plate-shaped heat insulating material, the cement mortar It is possible to prevent cracks from occurring in the finished ground layer, which is mainly composed of In addition, the finishing ground layer is less prone to cracking and firmly adheres to the plate-shaped insulation material, making it thinner and lighter than in the case where there is no netting, making it less susceptible to accidental falls. Effective in prevention. Furthermore, it is possible to reduce the number of joints and form a large free surface, or to create a beautiful appearance. For example, it is also possible to form a flexible wall surface, such as by making the wall surface of the frame a curved surface. In addition, resin mortar with high moisture permeation resistance is applied only to prepare the surface of the plate-shaped insulation material and to strengthen the adhesion with the cement mortar layer, so it should be applied thinly on the plate-shaped insulation material. The desired purpose can be achieved by simply using cement mortar with low moisture permeation resistance.
The amount of moisture accumulated in the plate-shaped insulation material does not increase,
The effect of the external wall insulation structure is effectively demonstrated. In addition, by reducing the amount of moisture accumulated in the plate-shaped insulation material, the moisture in the plate-shaped insulation material is less likely to freeze and damage the resin mortar that forms the adjustment layer, especially during cold seasons. It is also effective in extending the lifespan.
一方、施工時に、セメントモルタル塗布面上に
張設された網状物によつて、仕上下地層の主体と
成る外装側のセメントモルタルを平滑に塗布する
作業は容易になる。又、施工後には、セメントモ
ルタルを主体とする仕上下地層の表面側に位置す
る網状物により、セメントモルタル層の厚みの割
には強度があり、表面硬度も又、外部からの衝撃
力に対して充分なものとすることもできる。 On the other hand, during construction, the net-like material stretched over the cement mortar application surface facilitates the smooth application of cement mortar on the exterior side, which is the main part of the finishing ground layer. In addition, after construction, due to the net-like material located on the surface side of the finished ground layer, which is mainly composed of cement mortar, the cement mortar layer has strength relative to its thickness, and the surface hardness also makes it resistant to external impact forces. It can also be made sufficient.
第１図は本発明に係る工法で壁外断熱構造を構
築した壁構造体の縦断面図、第２図はモルタル団
子の配置状態の説明図、第３図は本発明に係る他
の工法で壁外断熱構造を構築した壁構造体の縦断
面図、第４図、第５図はそれぞれ従来の湿式工法
で壁外断熱構造を構築した壁構造体の縦断面図で
ある。
Ａ：壁面、Ｂ：調整層、Ｄ：仕上下地層、Ｅ：
仕上層、１：板状断熱材、２：セメントモルタ
ル、３：網状物、４：セメントモルタル、５：モ
ルタル団子、６：アンカー、７：下孔。ａ：壁
面、ｂ：板状断熱材、ｃ：仕上下地層、ｄ：仕上
層、ｅ：網状物。
Fig. 1 is a longitudinal cross-sectional view of a wall structure in which an external wall insulation structure is constructed using the construction method according to the present invention, Fig. 2 is an explanatory diagram of the arrangement of mortar balls, and Fig. 3 is a longitudinal cross-sectional view of a wall structure in which an external wall insulation structure has been constructed using the construction method according to the present invention. FIGS. 4 and 5 are longitudinal sectional views of a wall structure in which an external wall insulation structure has been constructed, and FIGS. 4 and 5 are longitudinal sectional views, respectively, of a wall structure in which an external wall insulation structure has been constructed using a conventional wet construction method. A: Wall surface, B: Adjustment layer, D: Finishing ground layer, E:
Finishing layer, 1: plate-shaped insulation material, 2: cement mortar, 3: mesh, 4: cement mortar, 5: mortar dumplings, 6: anchor, 7: prepared hole. a: wall surface, b: plate-shaped heat insulating material, c: finished base layer, d: finishing layer, e: net-like material.
Claims (1)
プラスチツク製板状断熱材上に、樹脂モルタルを
下地調整しながら塗布して、下地調整と固着力を
強固にするのを兼ねた調整層を設け、その上にセ
メントモルタルを充分な強度を有する厚みに塗布
して、このセメントモルタル塗布面上に網状物を
張設し、次にセメントモルタルを網状物が埋設状
態になるまで更に塗布して、セメントモルタルを
主体とする網状物を表面側に位置させた仕上下地
層を設け、その上に適宜仕上層を設けることを特
徴とした壁外断熱構築法。 ２ 網状物に、耐アルカリ性を有するガラス繊維
メツシユを用いた請求項１記載の壁外断熱構築
法。 ３ 仕上下地層の主体を成すセメントモルタル中
にガラス繊維を混入させた請求項１又は２記載の
壁外断熱構築法。[Scope of Claims] 1. Applying resin mortar on a foamed plastic plate-shaped heat insulating material stretched on the outer surface of a wall of a building frame, etc. while adjusting the base to strengthen the base and adhesion. An adjustment layer that also serves as A method for constructing insulation outside a wall, which is characterized by further applying the material until the final layer is coated, and then providing a finishing base layer with a net-like material mainly made of cement mortar positioned on the surface side, and then providing an appropriate finishing layer on top of that. 2. The external wall insulation construction method according to claim 1, wherein the mesh is made of glass fiber mesh having alkali resistance. 3. The method for constructing external wall insulation according to claim 1 or 2, wherein glass fibers are mixed into the cement mortar that constitutes the main part of the finishing ground layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2054285A JPS61179938A (en) | 1985-02-05 | 1985-02-05 | Wall heat insulating construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2054285A JPS61179938A (en) | 1985-02-05 | 1985-02-05 | Wall heat insulating construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61179938A JPS61179938A (en) | 1986-08-12 |
| JPH0567750B2 true JPH0567750B2 (en) | 1993-09-27 |
Family
ID=12030039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2054285A Granted JPS61179938A (en) | 1985-02-05 | 1985-02-05 | Wall heat insulating construction method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61179938A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01290864A (en) * | 1988-05-18 | 1989-11-22 | Shimizu Rifuoomu:Kk | Method for preventing separation and falling off of outer wall finishing material |
| JP2007205057A (en) * | 2006-02-02 | 2007-08-16 | Takemoru Kogyo Kk | Mortar wall finishing method |
| JP2009228371A (en) * | 2008-03-25 | 2009-10-08 | Sekisui Plastics Co Ltd | Outer heat insulation structure and its construction method |
| US7984594B1 (en) * | 2010-01-20 | 2011-07-26 | Propst Family Limited Partnership, Llc | Composite building and panel systems |
| JP2013245156A (en) * | 2012-05-29 | 2013-12-09 | Taiheiyo Materials Corp | Base structure for detached house and method for constructing the same |
| JP2015101512A (en) * | 2013-11-26 | 2015-06-04 | 太平洋マテリアル株式会社 | Outer wall structure for single-family housing and construction method thereof |
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1985
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| JPS53113127A (en) * | 1977-03-14 | 1978-10-03 | Japan Synthetic Rubber Co Ltd | Method of finishing plywood wall with mortar |
| JPS5568958A (en) * | 1978-11-17 | 1980-05-24 | Noda Plywood Mfg Co Ltd | Method of constructing mortar wall with building substrate |
| JPS598854A (en) * | 1982-07-07 | 1984-01-18 | 井上セロテツクス株式会社 | External insulating structure of building |
| JPS59217861A (en) * | 1983-05-20 | 1984-12-08 | 日本電気硝子株式会社 | Mortar construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61179938A (en) | 1986-08-12 |
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