EP0011781A1 - Process for manufacturing insulated plastered façades and insulating building panels for carrying out the process - Google Patents

Process for manufacturing insulated plastered façades and insulating building panels for carrying out the process Download PDF

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Publication number
EP0011781A1
EP0011781A1 EP79104520A EP79104520A EP0011781A1 EP 0011781 A1 EP0011781 A1 EP 0011781A1 EP 79104520 A EP79104520 A EP 79104520A EP 79104520 A EP79104520 A EP 79104520A EP 0011781 A1 EP0011781 A1 EP 0011781A1
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Prior art keywords
plastic
plaster
fiber fabric
glass fiber
fastening elements
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EP79104520A
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German (de)
French (fr)
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EP0011781B1 (en
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Friedrich Heck
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Priority claimed from DE19782850861 external-priority patent/DE2850861A1/en
Priority claimed from DE19787837566 external-priority patent/DE7837566U1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E04F13/04—Bases for plaster
    • E04F13/047—Plaster carrying meshes
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E04F13/04—Bases for plaster

Definitions

  • Insulated plaster facades are obtained by placing glass fiber fabric on polystyrene rigid foam panels and applying the plaster to them.
  • plastic In order to impart sufficient adhesive strength to the plaster, relatively high proportions of plastic are added.
  • these plastic parts are of considerable disadvantage because they block the water vapor passage.
  • condensing water that is inevitably penetrated by moist air cannot diffuse through the plaster due to the barrier effect of the plastic and pushes the plaster off the board during frosting, which leads to damage to the facade.
  • the object of the present invention is to reduce the proportion of plastic in the mortar even further, or to allow the use of mortars which no longer have any plastics.
  • the glass fiber fabric is glued to the plate with the aid of adhesive or mortar portions distributed in a punctiform manner over the plate, the adhesive or mortar, since it is supposed to have an adhesive effect here, to have a high proportion of plastic.
  • the invention can therefore also be seen in summarizing the plastic parts in very small zones and keeping the main main component of the plaster largely free of plastic.
  • the process is conveniently carried out in such a way that unbound plastic-rich stamps with effective adhesive surfaces in the order of magnitude between 20 and 2000 mm 2 are applied to the rigid foam panels and the glass fiber fabric is then immediately placed on them.
  • the plastic-rich mortar has a composition that is 10 to 80, preferably 40 to 60 percent by weight of cement, 0 to 80, preferably 30 to 50 percent by weight of sand, quartz sand or other mineral filler and 2 to 50, preferably 10 to 20, of plastic Contains percent by weight. The mortar is allowed to set and then the actual plaster is applied.
  • the applied low-plastic, ie non-adhesive plaster is held sufficiently by the glass fiber fabric, it must be emphasized that the plaster is applied here, as in the prior art, in a vertical arrangement on the panels fastened to the wall to be insulated.
  • the best bond between the grooved board and the set plaster is obtained if rigid foam boards with the greatest possible post-shrinkage are used, i.e. if boards are used that have been freshly produced and are stored for at least 3 months according to conventional teaching due to the high proportion of blowing agents and solvents should be.
  • Another very important advantage of the present invention is that the plates are now prepared at the factory, i.e. can be provided with the glass fiber fabric.
  • the abutments of the fabric can coincide with the abutting edges of the hardboard without causing cracks. This has to be described as extremely surprising, since especially plates with high post-shrinkage are used and one had to assume that the abutting edges represent areas of higher risk than in the prior art.
  • glass fiber webs can be attached to the rigid foam panels on site.
  • Both the individual panels can be reinforced in the manner described above, or larger sheets can be attached to the insulation layer already on the masonry, for which purpose the use of dowel-like expanding fastening elements made of preferably non-corrosive metal or plastic is proposed according to the invention. It suffices to press these "chicaning" elements into the polystyrene rigid foam and to attach the glass fiber fabric to head-end hooks or the like.
  • Another essential feature of the invention can be seen in the fact that tape-foamed sheets with a compacted surface are used, which are produced without mold release agents due to the process. With insulation boards with mold release agents on the surface, the adhesion of a low-plastic mortar can be reduced.
  • plastic-modified mineral exterior plasters or paint coats or also conventional plastic dispersion plasters to this reinforcement coating.
  • the different thermal expansion coefficient between the reinforcement coating and the plastic dispersion plaster does not have a very disadvantageous effect in this case, as it does otherwise, because the higher expansion coefficient for plastic dispersion plaster is offset by the elastic character of this plaster coating.
  • the mineral-based plasters or paint coats that are applied to the reinforcement coating have the advantage over plastic-based plastering and plastic facade paints that they allow water vapor to pass through very well and their color and properties do not change over the years.
  • the plastic dispersion paints become more dirty due to increased electrostatic charge, become brittle over time due to decomposition due to UV radiation and can be pressed off the surface due to their increased water vapor diffusion resistance. In addition, they soften when exposed to direct sunlight, which can cause vapor bubbles to form which disappear again during the night due to cooling until the overall J ADD porous and cracked is. 1
  • the water vapor diffusion resistance factors of the paints used are: After these insulation boards have been glued on, the plastic-modified cement mortar is applied and smoothed by hand or using a mortar spraying machine. This coating can be appropriately colored, left in this condition or coated with a conventional plaster or painted.
  • An insulation board according to the invention is shown in plan view in FIG. 1 and in front view in FIG. 2.
  • the grooves 4 are undercut like a dovetail.
  • step-like projections 5 and recesses 5 'on the edges are arranged, in order to produce overlaps in this way at the same time.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Finishing Walls (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

1. Method for producing insulated plaster facades by applying glass fibre fabric (3) and plaster to the grooved surface of rigid polystyrene foam slabs (1), wherein the latter have a defined after-shrinkage of at least 1 mm/m, characterized in that strip-foamed rigid polystyrene slabs with a compacted surface are used and that first of all the glass fibre fabric (3) is applied with the aid of a fixing agent (2) distributed above the slab (1) to the said slab at a distance of preferably 1 to 2 mm from the slab surface, following which a plaster containing 0 to 1% of plastics material is applied to the thus pretreated slab.

Description

Gedämmte Putzfassaden werden dadurch erhalten, daß man auf Polystyrol-Hartschaumplatten Glasfasergewebe auflegt und auf diese den Putz aufträgt. Um dem Putz eine genügende Haftfestigkeit zu vermitteln, werden diesem relativ hohe Kunststoffanteile beigemischt. Diese Kunststoffanteile sind aber von erheblichem Nachteil, da sie den Wasserdampfdurchlaß stark sperren. In den Grenzbereich zwischen Hartschaumplatte und Putz unvermeidbar durch feuchte Luft eindringendes kondensierendes Wasser kann somit wegen der Sperrwirkung des Kunststoffes nicht durch den Putz diffundieren und drückt den Putz bei Frosteinwiikung von der Platte ab, was zu Schäden an der Fassade führt.Insulated plaster facades are obtained by placing glass fiber fabric on polystyrene rigid foam panels and applying the plaster to them. In order to impart sufficient adhesive strength to the plaster, relatively high proportions of plastic are added. However, these plastic parts are of considerable disadvantage because they block the water vapor passage. In the border area between the rigid foam board and the plaster, condensing water that is inevitably penetrated by moist air cannot diffuse through the plaster due to the barrier effect of the plastic and pushes the plaster off the board during frosting, which leads to damage to the facade.

Versuche, den Kunststoffanteil zu senken, gelangen z.B. durch Verwendung von Polybutadienstyrol, wobei Anteile von lediglich 2,5 Gewichtsprozent Kunststoff im Mörtel erreicht wurden. Da jedoch dieser Kunststoff dem Mörtel einen erheblich höheren Wasserdampfsperrwert vermittelt als herkömmliche Kunststoffe, hat dessen Verwendung nicht zu befriedigenden Ergebnissen geführt.Attempts to lower the proportion of plastic are e.g. by using polybutadiene styrene, with proportions of only 2.5 percent by weight of plastic in the mortar. However, since this plastic gives the mortar a significantly higher water vapor barrier value than conventional plastics, its use has not led to satisfactory results.

Gemäß der DE-OS 25 16 916 wurde eie anderer Weg t-ten.Die bis zum Anmeldetag dieser Anmeldung geltende Lehre bestand darin, einen Haftputz mit relativ heben Kunststoffanteilen zu verwenden und Spannungen zwischen Mörtel und der durch Treibmittel- bzw. Lösungsmittelverlust stark schwindenden Schaumplatte dadurch zu mindern; daß durch vorgeschriebene Mindestlagerzeiten die Nachschwindung bis zu einem gewissen Grade abgebaut wurde. Es liegt jedoch auf der Hand, daß diese Lösung letztlich nicht befriedigt, da die Differenzspannung zwischen Putz und Mörtel nach der Verarbeitung ständig zunimmt und so den Verbund, der, siehe oben, durch den hohen Wasserdampfsperrwert ohnehin recht empfindlich ist, durch zusätzliche Kräfte obendrein belastet.According to DE-OS 25 16 916, another method was used. The teaching valid up to the filing date of this application consisted of using an adhesive plaster with a relatively high proportion of plastic and tension between the mortar and the foam plate, which shrinks considerably due to the loss of blowing agent or solvent thereby mitigate; that the post-shrinkage was reduced to a certain extent by prescribed minimum storage times. However, it is obvious that this solution is ultimately unsatisfactory, since the differential tension between plaster and mortar increases continuously after processing and, as a result, the bond, which, as above, is quite sensitive due to the high water vapor barrier value, is additionally burdened by additional forces .

Gemäß der DE-OS 25 16 916 ist es erstmals gelungen, den Kunststoffanteil des Mörtels soweit herabzusetzen, daß die Wasserdampfsperrwirkung tolerierbar wurde. Kunststoffanteile waren gleichwohl auch dort nötig, da eine gewisse Haftwirkung zur anfänglichen Befestigung des feuchten unabgebundenen Mörtels unabdingbar war.According to DE-OS 25 16 916, it was possible for the first time to reduce the proportion of plastic in the mortar to such an extent that the water vapor barrier effect was tolerable. Plastic parts were nevertheless also necessary there, since a certain adhesive effect was indispensable for the initial fixing of the moist, un-set mortar.

Die vorliegende Erfindung hat sich zur Aufgabe gestellt, den Kunststoffanteil des Mörtels noch weiter zu senken, bzw. die Verwendung von Mörteln zu gestatten, die keinerlei Kunststoffanteile mehr aufweisen.The object of the present invention is to reduce the proportion of plastic in the mortar even further, or to allow the use of mortars which no longer have any plastics.

Die Lösung der Aufgabe besteht darin, daß auf die Rillen aufweisenden Hartschaumplatten zunächst mit Hilfe von über die Platten verteilten Befestigungselementen ein Glasfasergewebe in einem Abstand von etwa 1 bis 2 mm von der Plattenoberfläche an dieser befestigt wird, wonach dann ein kunststoffarmer Putz auf die derart vorbereitete Platte aufgetragen wird. Auf diese Weise ist es erstmals möglich, gedämmte Fassaden herzustellen, die optimale Wasserdampfdurchgangswerte aufweisen.The solution to the problem is that on the grooves having rigid foam panels, a glass fiber fabric is first attached to the panel surface at a distance of about 1 to 2 mm from the panel surface with the aid of fastening elements distributed over the panels, after which a low-plastic plaster is then prepared for the panel in this way Plate is applied. In this way it is possible for the first time to produce insulated facades that have optimal water vapor transmission values.

Als besonders vorteilhaft ist anzusehen, einen Mörtel mit 0 bis 1 Gewichtsprozent Kunststoffanteil zu verwenden, da auf diese Weise Fassaden herstellbar sind, bei denen der Wasserdampfeinfluß keinerlei negative Auswirkungen hat.It is particularly advantageous to use a mortar with a plastic content of 0 to 1 percent by weight, since facades can be produced in this way in which the influence of water vapor has no negative effects.

Erfindungsgemäß wird das Glasfasergewebe mit Hilfe von punktförmig über die Platte verteilten Kleber- oder Mörtelportionen beabstandet auf die Platte geklebt, wobei der Kleber oder Mörtel, da er hier Haftwirkung entfalten soll, einen hohen Kunststoffanteil aufweist.According to the invention, the glass fiber fabric is glued to the plate with the aid of adhesive or mortar portions distributed in a punctiform manner over the plate, the adhesive or mortar, since it is supposed to have an adhesive effect here, to have a high proportion of plastic.

Die Erfindung kann somit auch darin gesehen werden, die Kunststoffanteile örtlich begrenzt in sehr kleinen Zonen zusammenzufassen und den wesentlichen Hauptbestandteil des Putzes von Kunststoff weitgehend freizuhalten.The invention can therefore also be seen in summarizing the plastic parts in very small zones and keeping the main main component of the plaster largely free of plastic.

Das Verfahren wird dabei z/weckmäßigerweise so durchgeführt, daß man unabgebundene kunststoffreiche Stempel mit wirksamen Haftflächen in der Größenordnung zwischen 20 bis 2000 mm2 auf die Hartschaumplatten aufbringt und sofort anschließend darauf das Glasfasergewebe legt. Der kunststoffreiche Mörtel weist dabei eine Zusammensetzung auf, die an Zement 10 bis 80, vorzugsweise 40 bis 60 Gewichtsprozent, an Sand, Quarzsand oder anderen mineralischem Füllstoff 0 bis 80, vorzugsweise 30 bis 50 Gewichtsprozent und an Kunststoff 2 bis 50, vorzugsweise 10 bis 20 Gewichtsprozent enthält. Man läßt den Mörtel abbinden und trägt dann den eigentlichen Putz auf. überraschenderweise wird der aufgetragene kunststoffarme, also keine Haftwirkung aufweisende Putz von dem Glasfasergewebe ausreichend festgehalten, wobei unterstrichen werden muß, daß das Auftragen des Putzes hier wie beim Stande der Technik in senkrechter Anordnung auf die an der zu dämmenden Wand befestigten Platten erfolgt.The process is conveniently carried out in such a way that unbound plastic-rich stamps with effective adhesive surfaces in the order of magnitude between 20 and 2000 mm 2 are applied to the rigid foam panels and the glass fiber fabric is then immediately placed on them. The plastic-rich mortar has a composition that is 10 to 80, preferably 40 to 60 percent by weight of cement, 0 to 80, preferably 30 to 50 percent by weight of sand, quartz sand or other mineral filler and 2 to 50, preferably 10 to 20, of plastic Contains percent by weight. The mortar is allowed to set and then the actual plaster is applied. Surprisingly, the applied low-plastic, ie non-adhesive plaster is held sufficiently by the glass fiber fabric, it must be emphasized that the plaster is applied here, as in the prior art, in a vertical arrangement on the panels fastened to the wall to be insulated.

Der beste Verbund zwischen der gerillten Platte und dem abgebundenen Putz wird dann erhalten, wenn Hartschaumplatten mit größtmöglicher Nachschwindung eingesetzt werden, d.h., wenn Platten verwendet werden, die frisch produziert wurden und wegen des hohen Treibmittel- bzw. Lösungsmittelanteils nach herkömmlicher Lehre mindestens 3 Monate gelagert werden müßten.The best bond between the grooved board and the set plaster is obtained if rigid foam boards with the greatest possible post-shrinkage are used, i.e. if boards are used that have been freshly produced and are stored for at least 3 months according to conventional teaching due to the high proportion of blowing agents and solvents should be.

Ein weiterer ganz wesentlicher Vorteil der vorliegenden Erfindung besteht darin, daß die Platten nunmehr werkseitig vorbereitet, d.h. mit dem Glasfasergewebe versehen werden können.Another very important advantage of the present invention is that the plates are now prepared at the factory, i.e. can be provided with the glass fiber fabric.

Dies war beim Stande der Technik nicht möglich, da das Gewebe zwingend so an auf dem Mauerwerk angebrachten Platten befestigt werden mußte, daß das Glasfasergewebe nicht an den Rändern der Platten Stöße bildete, da dies unweigerlich an den Stoßkanten nach kurzer Zeit zu Rißbildung führte.This was not possible in the prior art, since the fabric had to be attached to panels attached to the masonry in such a way that the glass fiber fabric did not form joints at the edges of the panels, since this inevitably led to crack formation on the abutting edges after a short time.

Nach dem erfindungsgemäßen Verfahren können die Stöße des Gewebes mit den Stoßkanten der Hartfaserplatten zusammenfallen, ohne daß eine Rißbildung entsteht. Dies muß als äußerst überraschend bezeichnet werden, da gerade Platten mithoher Nachschwindung zum Einsatz kommen und man daher annehmen mußte, daß die Stoßkanten mehr noch als beim Stand der Technik Bereiche höherer Gefährdung darstellen.According to the method according to the invention, the abutments of the fabric can coincide with the abutting edges of the hardboard without causing cracks. This has to be described as extremely surprising, since especially plates with high post-shrinkage are used and one had to assume that the abutting edges represent areas of higher risk than in the prior art.

Als besonders erfindungswesentlich wird daher angesehen, Hartschaumplatten werkseitig mit deckungsgleichen oder nur geringfügig über die Ränder überstehenden Glasfasergewebematten zu versehen.It is therefore considered to be particularly essential to the invention to provide rigid foam panels with congruent glass fiber mats or protruding only slightly beyond the edges.

Diese Platten können mühelos an der Mauer befestigt werden, da keine großen überlappungen des Gewebes nötig sind bzw. da auf diese auch ganz verzichtet werden kann.These panels can be easily attached to the wall as there is no need for large overlaps of the fabric are or because these can also be dispensed with entirely.

Um zu vermeiden, daß beim Auftragen des Putzes an den Plattenstößen dieser im nassen Zustand nicht ausreichend gehalten wird, ist vorgesehen, insbesondere nahe der Plattenkanten die notwendigen Befestigungselemente anzuordnen.In order to prevent the plaster from being insufficiently held in the wet state when the plaster is applied, provision is made for the necessary fastening elements to be arranged in particular near the plate edges.

Im Bedarfsfall ist es natürlich auch möglich, die Glasfasergewebebahnen auf der Baustelle an den Hartschaumplatten anzubringen. Dabei können sowohl die einzelnen Platten in oben geschilderter Weise armiert werden, oder aber größere Bahnen auf der bereits auf dem Mauerwerk befindlichen Dämmschicht befestigt werden, wozu erfindungsgemäß die Verwendung von sich dübelartig verspreizenden Befestigungselementen aus vorzugsweise nicht korrodierendem Metall oder Kunststoff vorgeschlagen wird. Es genügt dabei, diese "Schikanen" aufweisenden Elemente in den Polystyrol-Hartschaum zu drücken und an kopfseitigen Haken oder dergleichen das Glasfasergewebe zu befestigen.If necessary, it is of course also possible to attach the glass fiber webs to the rigid foam panels on site. Both the individual panels can be reinforced in the manner described above, or larger sheets can be attached to the insulation layer already on the masonry, for which purpose the use of dowel-like expanding fastening elements made of preferably non-corrosive metal or plastic is proposed according to the invention. It suffices to press these "chicaning" elements into the polystyrene rigid foam and to attach the glass fiber fabric to head-end hooks or the like.

Als vorteilhaft hat sich weiterhin erwiesen, die notwendigen Rillen nicht in die Platten mitzuformen, sondern diese nachträglich einzufräsen.It has also proven to be advantageous not to mold the necessary grooves into the plates, but to subsequently mill them in.

Ein weiteres erfindungsgemäßes wesentliches Merkmal ist noch darin zu sehen, daß bandgeschäumte Platten mit verdichteter Oberfläche eingesetzt werden, die verfahrensbedingt ohne Formtrennmittel hergestellt werden. Bei Dämmplatten mit Formtrennmittel auf der Oberfläche kann die Haftung eines kunststoffarmen Mörtels herabgesetzt sein.Another essential feature of the invention can be seen in the fact that tape-foamed sheets with a compacted surface are used, which are produced without mold release agents due to the process. With insulation boards with mold release agents on the surface, the adhesion of a low-plastic mortar can be reduced.

Durch die erfindungsgemäße Verwendung von äußerst geringen Kunststoffzusatzmengen zu Zement-Mörtel-Mischungen wird auf den Polystyrol-Hartschaumplatten eine Beschichtung erreicht, die nach dem Abbinden eine einwandfreie Grundlage darstellt für rein mineralisch aufgebaute Außenputze oder Farbanstriche. Die Haftung ist durch Saugfähigkeit der Armierungsbeschichtung sowie Artverwandtheit beider Beschichtungsmassen sehr gut.Through the use according to the invention of extremely small amounts of plastic added to cement-mortar mixtures a coating is achieved on the polystyrene rigid foam panels which, after setting, provides a perfect basis for purely mineral-based exterior plasters or paint coats. The adhesion is very good due to the absorbency of the reinforcement coating and the similarity of the two coating compositions.

Der Wärmeausdehnungskoeffizient für Zement-Mörtel-Mischungen wird durch die geringen Kunststoffzusätze so gut wie nicht beeinflußt.The coefficient of thermal expansion for cement-mortar mixtures is practically unaffected by the low plastic additives.

Es ist zwar auch möglich, auf diese Armierungsbeschichtung kunststoffmodifizierte mineralische Außenputze bzw. Farbanstriche oder auch übliche Kunststoffdisperions- pu'tze aufzubringen. Der unterschiedliche Wärmeausdehnungskoeffizient zwischen Armierungsbeschichtung und Kunststoffdispersionsputz wirkt sich in diesem Fall, wie auch sonst, nicht sehr nachteilig aus, weil der höhere Ausdehnungskoeffizient für Kunststoffdispersionsputze durch den elastischen Charakter dieser Putzbeschichtung ausgeglichen wird.It is also possible to apply plastic-modified mineral exterior plasters or paint coats or also conventional plastic dispersion plasters to this reinforcement coating. The different thermal expansion coefficient between the reinforcement coating and the plastic dispersion plaster does not have a very disadvantageous effect in this case, as it does otherwise, because the higher expansion coefficient for plastic dispersion plaster is offset by the elastic character of this plaster coating.

Die mineralisch aufgebauten Putze oder Farbanstriche, die auf die Armierungsbeschichtung aufgetragen werden, haben jedoch gegenüber den Kunststoffdispezsiansputzen und Kunststoff-Fassadenfarben den Vorteil, daß sie Wasserdampf sehr gut passieren lassen und sich in Farbe und Eigenschaften im Laufe der Jahre nicht verändern. Die Kunststoffdispersions-Farbanstriche verschmutzen infolge erhöhter elektrostatischer Aufladung stärker, verspröden im Laufe der Zeit durch Zersetzung infolge UV-Einstrahlung und können infolge ihres erhöhten Wasserdampfdiffusionswiderstandes vom Untergrund abgedrückt werden. Außerdem erweichen sie bei direkter Sonnenbestrahlung, was dazu führen kann, daß sich Dampfblasen bilden, die in der Nacht infolge Abkühlung wieder verschwinden, bis das Ge- J füge porös und rissig wird. 1The mineral-based plasters or paint coats that are applied to the reinforcement coating, however, have the advantage over plastic-based plastering and plastic facade paints that they allow water vapor to pass through very well and their color and properties do not change over the years. The plastic dispersion paints become more dirty due to increased electrostatic charge, become brittle over time due to decomposition due to UV radiation and can be pressed off the surface due to their increased water vapor diffusion resistance. In addition, they soften when exposed to direct sunlight, which can cause vapor bubbles to form which disappear again during the night due to cooling until the overall J ADD porous and cracked is. 1

Die Wasserdampfdiffusionswiderstandsfaktoren der in Anwendung befindlichen Anstriche sind:

Figure imgb0001
Nach dem Ankleben diser Dämmplatten wird der kunststoffmodifizierte Zement-Mörtel von Hand oder mittels einer Mörtelspritzmaschine aufgebracht und geglättet. Diese Beschichtung kann,entsprechend eingefärbt, in diesem Zustand belassen oder mit einem üblichen Putz beschichtet oder mit einem Farbanstrich versehen werden.The water vapor diffusion resistance factors of the paints used are:
Figure imgb0001
 After these insulation boards have been glued on, the plastic-modified cement mortar is applied and smoothed by hand or using a mortar spraying machine. This coating can be appropriately colored, left in this condition or coated with a conventional plaster or painted.

Die nachfolgende Figurenbeschreibung dient der näheren Erläuterung der vorliegenden Erfindung.The following description of the figures serves to explain the present invention in more detail.

Es ist in Fig. 1 eine erfindungsgemäße Dämmplatte in Draufsicht und in Fig. 2 in Frontansicht gezeigt.An insulation board according to the invention is shown in plan view in FIG. 1 and in front view in FIG. 2.

Auf der Polystyrol-Hartschaumplatte 1 befinden sich die Befestigungselemente 2, auf denen das Glasfasergewebe 3 angebracht (aufgeklebt) ist, die Rillen 4 sind schwalbenschwanzartig hinterschnitten. Es ist jedoch auch ohne Nachteil möglich, Rillen mit senkrechten Wänden vorzusehen.On the polystyrene hard foam plate 1 there are the fastening elements 2, on which the glass fiber fabric 3 is attached (glued), the grooves 4 are undercut like a dovetail. However, it is also possible to provide grooves with vertical walls without disadvantage.

Weiterhin ist es möglich, in an sich bekannter Weise an den Rändern zur Erleichterung der Montage stufenartige Vorsprünge 5 und Rücksprünge 5' anzuordnen, um derart gleichzeitig Überlappungen herzustellen.Furthermore, it is possible, in a manner known per se, to arrange step-like projections 5 and recesses 5 'on the edges to facilitate assembly, in order to produce overlaps in this way at the same time.

Es ist auch möglich, das Gewebe über die Ränder überstehen zu lassen, um die anfängliche Haftung der nassen Armierungsbeschichtung im Randbereich zu erhöhen. Auf die Qualität der fertigen Dämmschicht hat dies jedoch keinen Einfluß.It is also possible to let the fabric protrude over the edges to maintain the initial wet grip Reinforcement coating in the edge area to increase. However, this has no influence on the quality of the finished insulation layer.

Claims (22)

1. Verfahren zur Herstellung gedämmter Putzfassaden durch Aufbringen von Glasfasergewebe und Putz auf die gerillte Oberfläche von Polystyrolhartschaumplatten, wobei diese eine definierte Nachschwindung von mindestens 1 mm/m aufweisen, dadurch gekennzeichnet, daß zunächst mit Hilfe von über die Platte verteilten Befestigungselementen ein Glasfasergewebe in einem Abstand von vorzugsweise 1 bis 2 mm von der Plattenoberfläche an dieser befestigt wird, wonach dann ein kunststoffarmer Putz auf die derart vorbereitete Platte aufgetragen wird.1. A method for producing insulated plaster facades by applying glass fiber fabric and plaster on the grooved surface of rigid polystyrene foam panels, which have a defined post-shrinkage of at least 1 mm / m, characterized in that initially with the aid of fasteners distributed over the plate, a glass fiber fabric in one Distance of preferably 1 to 2 mm from the surface of the plate is attached to it, after which a low-plastic plaster is then applied to the plate prepared in this way. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Putz einen Kunststoffanteil von 0 bis 1% aufweist.2. The method according to claim 1, characterized in that the plaster has a plastic content of 0 to 1%. 3. Verfahren nach Anspruch 1 bis 2, dadurch gekennzeichnet, daß die Befestigungselemente aus üblichen Klebemitteln bestehen.3. The method according to claim 1 to 2, characterized in that the fastening elements consist of conventional adhesives. 4. Verfahren nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß der Kleber aus Mörtel mit hohem Kunststoffanteil besteht.4. The method according to claim 1 to 3, characterized in that the adhesive consists of mortar with a high proportion of plastic. 5. Verfahren nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß das Glasfasergewebe an der Platte mit Hilfe von Befestigungselementen der folgenden Zusammensetzung angebracht wird.
Figure imgb0002
 5. The method according to claim 1 to 4, characterized in that the glass fiber fabric is attached to the plate with the aid of fastening elements of the following composition.
Figure imgb0002
 6. Verfahren nach Anspruch 1 bis 5, dadurch gekennzeichnet, daß Platten mit größtmöglicher Nachschwindung verwendet werden.6. The method according to claim 1 to 5, characterized in that plates are used with the greatest possible post-shrinkage. 7. Verfahren nach Anspruch 1 bis 6, dadurch gekennzeichnet, daß die Platten vor dem Anbringen an die zu dämmende Wand mit dem Glasfasergewebe versehen werden.7. The method according to claim 1 to 6, characterized in that the plates are provided with the glass fiber fabric before attachment to the wall to be insulated. 8. Verfahren nach Anspruch 1 bis 7, dadurch gekennzeichnet, daß Flasfasergewebe vorzugsweise im Randbereich der Platten mit Hilfe der Befestigungselemente an den Platten befestigt wird.8. The method according to claim 1 to 7, characterized in that the fiber fabric is preferably fastened in the edge region of the plates with the aid of the fastening elements on the plates. 9. Verfahren nach Anspruch 1 bis 8, dadurch gekennzeichnet, daß das Glasfasergewebe mit Hilfe von in die Hartschaumplatten einsteckbaren, dübelartig verspreizenden Befestigungselementen an den Platten befestigt wird.9. The method according to claim 1 to 8, characterized in that the glass fiber fabric is fastened to the plates with the aid of plug-in, dowel-like expanding fastening elements which can be inserted into the rigid foam plates. 10. Verfahren nach Anspruch 1 bis 9, dadurch gekennzeichnet, daß die Rillen in die Hartschaumplatten gefräst werden.10. The method according to claim 1 to 9, characterized in that the grooves are milled into the rigid foam panels. 11. Verfahren nach Anspruch 1 bis 10, dadurch gekennzeichnet, daß die Rillen schwalbenschwanzartig hinterschnitten sind.11. The method according to claim 1 to 10, characterized in that the grooves are undercut dovetail-like. 12. Verfahren nach Anspruch 1 bis 11, dadurch gekennzeichnet, daß bandgeschäumte Polystyrol-Hartschaumplatten verwendet werden.12. The method according to claim 1 to 11, characterized in that tape-foamed polystyrene rigid foam sheets are used. 13. Verfahren nach Anspruch 1 bis 12, dadurch gekennzeichnet, daß nach dem Abbinden der Armierungsbeschichtung mineralische Farbanstriche aufgetragen werden.13. The method according to claim 1 to 12, characterized in that mineral paints are applied after the reinforcing coating has set. 14. Verfahren nach Anspruch 1 bis 13, dadurch gekennzeichnet, daß nach dem Abbinden der Armierungsbeschichtung hydraulisch abbindende Putze üblicher Art aufgetragen werden.14. The method according to claim 1 to 13, characterized in that hydraulically setting plasters of the usual type are applied after the reinforcing coating has set. 15. Verfahren nach Anspruch 1 bis 14, dadurch gekennzeichnet, daß nach dem Abbinden der Armierungsbeschichtung kunststoffmodifizierte hydraulisch abbindende Putze oder Anstrichfarben aufgetragen werden.15. The method according to claim 1 to 14, characterized in that after the reinforcing coating has set, plastic-modified hydraulically setting plasters or paints are applied. 16. Verfahren nach Anspruch 1 bis 15, dadurch gekennzeichnet, daß eine Armierungsbeschichtung (Mörtel), bestehend aus Zement und Sand, gegebenenfalls unter Zusatz von Kalk verwendet wird, dem als Kunststoff }1ethylcellulose,Acrylate, Methacrylate und deren Copolymere, z.B. Styrolacrylate, ferner vorzugsweise Vinylacetate und deren Copolymerisate zugegeben wird.16. The method according to claim 1 to 15, characterized in that a reinforcing coating (mortar) consisting of cement and sand, optionally with the addition of lime, is used as the plastic} 1ethylcellulose, acrylates, methacrylates and their copolymers, e.g. Styrene acrylates, further preferably vinyl acetates and their copolymers is added. 17. Dämmplatte aus Polystyrol-Hartschaum mit einer Nachschwindung von mehr als 1 mm/m sowie mit Rillen versehener Oberfläche nach Anspruch 1 bis 16, gekennzeichnet durch mittels Befestigungselementen in einem Abstand von 1 bis 2 mm von der Oberfläche einseitig angebrachtem Glasfasergewebe.17. Insulation board made of polystyrene hard foam with a shrinkage of more than 1 mm / m and with a grooved surface according to claim 1 to 16, characterized by fastening elements at one distance from 1 to 2 mm from the surface attached glass fiber fabric. 18.Dämmplatte nach Anspruch 17, dadurch gekennzeichnet, daß die Befestigungselemente aus kunststoffreichem Mörtel oder Kleber bestehen.18. Insulation board according to claim 17, characterized in that the fastening elements consist of plastic-rich mortar or adhesive. 19. Dämmplatte nach Anspruch 17 und 18, dadurch gekennzeichnet, daß die Befestigungselemente aus Mörtel der folgenden Zusammensetzung bestehen:
Figure imgb0003
 19. Insulation board according to claim 17 and 18, characterized in that the fastening elements consist of mortar of the following composition:
Figure imgb0003
 20. Dämmplatte nach Anspruch 17 bis 19, dadurch gekennzeichnet, daß die Rillen in die Platte eingefräst sind.20. Insulation board according to claim 17 to 19, characterized in that the grooves are milled into the plate. 21. Dämmplatte nach Anspruch 17 bis 20, dadurch gekennzeichnet, daß die Rillen schwalbenschwanzartig hinterschnitten sind.21. Insulation board according to claim 17 to 20, characterized in that the grooves are undercut dovetail-like. 22. Dämmplatte nach Anspruch 17 bis 21, dadurch gekennzeichnet, daß sie aus bandgeschäumtem Material besteht.22. Insulation board according to claim 17 to 21, characterized in that it consists of band-foamed material.
EP79104520A 1978-11-24 1979-11-15 Process for manufacturing insulated plastered façades and insulating building panels for carrying out the process Expired EP0011781B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79104520T ATE2236T1 (en) 1978-11-24 1979-11-15 PROCESS FOR THE MANUFACTURE OF INSULATED PLASTER FAÇADES AND INSULATION BOARD ELEMENTS FOR CARRYING OUT THE PROCESS.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19782850861 DE2850861A1 (en) 1978-11-24 1978-11-24 METHOD FOR PRODUCING INSULATED PLASTERING FACADES AND INSULATING PANEL ELEMENTS FOR IMPLEMENTING THE METHOD
DE2850861 1978-11-24
DE7837566U 1978-12-19
DE19787837566 DE7837566U1 (en) 1978-12-19 1978-12-19 INSULATION PANEL FOR THE PRODUCTION OF INSULATED PLASTER FACADES

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EP0011781A1 true EP0011781A1 (en) 1980-06-11
EP0011781B1 EP0011781B1 (en) 1983-01-12

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IE (1) IE48993B1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017050B1 (en) * 1979-03-14 1983-04-06 Friedrich Heck Heat insulating facade
GB2133433A (en) * 1983-01-11 1984-07-25 Hans Andersson A board to which plaster is applied
DE3445187A1 (en) * 1983-12-16 1985-06-27 Josef Salzburg Wallinger Construction board
EP0273241A1 (en) * 1986-12-09 1988-07-06 SYNBRA Unie B.V. Insulating plaster board
EP0703328A1 (en) * 1994-09-23 1996-03-27 Wiehofsky, Margot Base for plaster
CN111424908A (en) * 2020-03-30 2020-07-17 中山市果度装饰工程有限公司 Multipurpose building decoration decorative board

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2775523T3 (en) 2016-04-29 2020-07-27 Sto Se & Co Kgaa Procedure to produce a facade system and device to carry out the procedure

Citations (4)

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Publication number Priority date Publication date Assignee Title
DE1942352A1 (en) * 1969-08-20 1971-03-04 Buchmann Rudolf Ch Component made of expanded plastic with plaster support made of expanded sheet metal and process for its production
DE1658875B1 (en) * 1967-12-14 1971-09-30 Heinrich Hebgen Insulation panel for the external insulation of buildings and processes for their production
FR2378143A1 (en) * 1977-01-24 1978-08-18 Gen Travaux Batiment Hooked staples for securing reinforced resin panel to wall insulation - where the staples engage the panel reinforcement netting
DE2713487A1 (en) * 1977-03-26 1978-09-28 Karner Karl Insulated hard foam panel for supporting rendering - has reinforcing fibre glass lattice mat impregnated and sheathed with synthetic resin

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2516916B2 (en) * 1975-04-17 1981-02-12 Friedrich 6702 Bad Duerkheim Heck External wall insulation with plaster coating for buildings

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1658875B1 (en) * 1967-12-14 1971-09-30 Heinrich Hebgen Insulation panel for the external insulation of buildings and processes for their production
DE1942352A1 (en) * 1969-08-20 1971-03-04 Buchmann Rudolf Ch Component made of expanded plastic with plaster support made of expanded sheet metal and process for its production
FR2378143A1 (en) * 1977-01-24 1978-08-18 Gen Travaux Batiment Hooked staples for securing reinforced resin panel to wall insulation - where the staples engage the panel reinforcement netting
DE2713487A1 (en) * 1977-03-26 1978-09-28 Karner Karl Insulated hard foam panel for supporting rendering - has reinforcing fibre glass lattice mat impregnated and sheathed with synthetic resin

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017050B1 (en) * 1979-03-14 1983-04-06 Friedrich Heck Heat insulating facade
GB2133433A (en) * 1983-01-11 1984-07-25 Hans Andersson A board to which plaster is applied
DE3445187A1 (en) * 1983-12-16 1985-06-27 Josef Salzburg Wallinger Construction board
EP0273241A1 (en) * 1986-12-09 1988-07-06 SYNBRA Unie B.V. Insulating plaster board
EP0703328A1 (en) * 1994-09-23 1996-03-27 Wiehofsky, Margot Base for plaster
CN111424908A (en) * 2020-03-30 2020-07-17 中山市果度装饰工程有限公司 Multipurpose building decoration decorative board

Also Published As

Publication number Publication date
IE48993B1 (en) 1985-07-10
IE792255L (en) 1980-05-24
EP0011781B1 (en) 1983-01-12

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