EP2489806A2 - Method for producing a coating, in particular a coating for composite heat insulation systems - Google Patents

Abstract

The method involves applying a grid or a network (5) with spacer bodies (7) on a substrate, and applying a priming material. The priming material is removed in the height from the substrate facing away from the ends of the spacer body. The textile glass grid or network is applied as a grid or network. The grid or network is applied, which carries the spacer body at intersection or junction point. An independent claim is also included for a grid or a network comprises a spacer body.

Description

The invention relates to a method for producing a filling, in particular a spatula in thermal insulation systems.

The invention further relates to a method for producing a thermal composite system and moreover to a net or grid which can be advantageously used in the inventive method.

When manufacturing thermal insulation composite systems, façade insulation panels attached to a facade (wall), e.g. glued and or dowelled, a, for example, cementitious, reinforcing compound ("filling") applied by means of a toothed spatula 10. In this Armierungsmasse a fiberglass grid or network is inserted, with a layer thickness of 2 to 3 mm can be achieved. At higher layer thicknesses (over 2 to 3 mm), after a corresponding drying out of the initially applied (cementitious) reinforcing compound, a second step must be carried out, in which reinforcing compound is again applied.

A problem with the known method for producing thermal insulation composite systems is that a considerable amount of work is required and a uniform layer thickness is not always guaranteed and depends on the skill and care of the worker.

The invention has for its object to provide a method by which a uniform thickness (predetermined and defined) layer thickness of the filling over the entire facade can be achieved in one step. Furthermore, the object of the invention is to provide a grid or network suitable for carrying out the method.

This object is achieved according to the invention with a method having the features of claim 1.

As far as the inventive method for producing a thermal composite system is met, this object is achieved by a method having the features of claim 7.

As far as the grid according to the invention or network is concerned, this object is achieved with a grid or network having the features of the grid or network directed independent claim 13.

Preferred and advantageous embodiments of the method according to the invention and of the grid or network according to the invention are the subject of the dependent subclaims.

In the method according to the invention, a grid or mesh, for example a commercially available glass fiber fabric (fiberglass grid or mesh) is used, which is equipped with spacers.

The spacers can have different shape, size and material properties and can be applied according to a predetermined grid with suitable adhesives and connected to the grid or network. In this case, spacers with a button or spherical shape and elongated spacers in the form of rods or strips are taken into consideration. Such elongated spacers may all be aligned in one direction, parallel to one another, or crossing each other, in particular at a right angle.

In one embodiment, the method for producing a filling may be distinguished by the use of a substrate made of facade insulation panels, in particular facade insulation panels of expanded plastic, such as polystyrene, and on an applied reinforcement.

In one embodiment, the method for producing a filling may be characterized in that the reinforcing compound is applied to the facade insulation panels and pulled off with the aid of a toothed spatula.

In one embodiment, the method for producing a filling may be characterized in that a textile glass mesh or net is used as the grid or net.

In one embodiment, the method of producing a putty may be characterized by using a grid or mesh carrying spacers at intersections or junctions.

In one embodiment, the method for producing a filling may be characterized in that a grid or network is used which distributes over the surface of the grid or network, in particular evenly distributed spacer carries.

In one embodiment, the method for producing a filling may be distinguished in that the filler is removed with a grape-pickle and / or a surface spatula.

In one embodiment, the method for producing a filling can be characterized in that the grid or mesh provided with spacers is inserted into a layer of putty applied to the substrate.

In one embodiment, the method for producing a filling can be characterized in that after inserting the grid or mesh another layer of putty is applied and removed.

In one embodiment, the method of making a putty may be characterized by using a grid or mesh that does not have lapping strips fitted with spacers.

In one embodiment, the method may be used to make a thermal composite system in which facade insulation panels are applied to a wall to which a mass is applied, and in which a grid or mesh with spacers is placed in the mass such that the spacers are removed from the grid or net facing the wall, characterized in that the facade insulation panels a reinforcing compound is applied as a filling that is inserted into the reinforcing compound provided with spacers grid or mesh and coated with reinforcing compound that the reinforcing material is then smoothly pulled off and that finally the curing of the reinforcing compound, an outer layer is applied.

In one embodiment, the method for producing a heat-bonding system can be characterized in that a mineral-bonded, in particular cementitious, reinforcing compound is used as the reinforcing compound.

In one embodiment, the method for producing a heat-bonding system may be characterized in that a resin-bound reinforcing compound is used as the reinforcing compound.

In one embodiment, the method can be characterized for producing a thermal composite system that façade insulation boards are used made of expanded plastic.

In one embodiment, the method for producing a thermal composite system may be characterized in that the reinforcing material is applied to the facade insulation panels and pulled off with the aid of a toothed spatula, before the grid or mesh is inserted.

In one embodiment, the method for producing a heat-bonding system can be characterized in that the reinforcing compound applied after the mesh or mesh has been applied is drawn off with a grape-pickle and / or a surface spatula.

In one embodiment, the grid may be characterized in that the grid or network is distributed over its surface distributed with spacers.

In one embodiment, the grid may be characterized in that the spacers are provided at intersection and node points of the grid or the network.

In one embodiment, the grid may be characterized in that the spacers survive only on one side over the grid or the network.

In one embodiment, the grid may be characterized in that the spacers are convexly curved on their projecting beyond the grid or the network side.

In one embodiment, the grid may be characterized in that the spacers are substantially hemispherical bodies.

In one embodiment, the grid may be characterized in that the spacers are cross-shaped bodies.

In one embodiment, the grid may be characterized in that the spacers are arranged uniformly over the grid or the net.

In one embodiment, the grid may be characterized in that the grid or the net has at least one edge strip without spacers.

In one embodiment, the grid may be characterized in that an edge protection profile is provided between sections of grid or net.

In one embodiment, the grid can be characterized in that the edge protection profile is connected to the sections of grid or network.

In one embodiment, the grid may be characterized in that connection profiles are provided between the sections of grid or net.

In one embodiment, the grid can be characterized in that a connection profile is provided, which is elastic transversely to its longitudinal extent.

In one embodiment, the grid may be distinguished by the fact that at least one region bent out of the plane of the connection profile, in particular an area with a semicircular cross-sectional shape, is provided in the connection profile.

In one embodiment, the grid may be characterized in that the grid or net is connected to a pedestal profile.

In one embodiment, the grid may be characterized in that the grid or net is connected to a dripping nose profile.

In one embodiment, the grid may be characterized in that the grid or net is connected to a profile for attachment to a sheet metal connection.

In one embodiment, the grating may be characterized in that the spacers are elongate bodies, in particular rod-shaped or strip-long bodies.

In one embodiment, the grid may be characterized in that elongated spacers are aligned parallel to each other.

In one embodiment, the grid may be characterized in that elongated spacers are arranged crossing each other.

In one embodiment, the grid may be characterized in that elongated spacers are formed tapering wedge or blade-shaped at least on its side resting on an insulating board.

In one embodiment, the grid may be characterized in that elongated spacers have on their side adjacent to an insulating board side projections (nubs).

In one embodiment, the grid may be characterized in that the projections are hemispherical or pyramidal (blunt) in shape.

In one embodiment, the grid may be characterized in that the spacers are substantially hemispherical bodies or that the spacers are elongated bodies, in particular rod-shaped or strip-shaped bodies, which are arranged crossing each other.

The method according to the invention can be carried out using the grid or network proposed according to the invention, for example as follows.

On a wall of a building, a layer of facade insulation panels, in particular facade insulation panels made of expanded plastic, for example, expanded polystyrene or polyurethane, applied, the facade insulation panels glued as usual or can be pegged up.

A (cementitious) reinforcing compound is applied to the facade insulation panels as a filling and removed by means of a toothed spatula. In this bed (filling) made of reinforcing compound, a grid or net equipped with spacers is inserted and coated with (cementitious) reinforcing compound. After coating with (cementitious) reinforcing material, the Armierungsmasse is smoothly peeled off, which can be done for example by means of a grayling or a surface spatula.

• Es wird eine gleichmäßig glatte und gleichmäßige Armierungsschichte aus Armierungsmasse ohne zweimaliges Spachteln, wie im Stand der Technik notwendig, mit definierter Dicke erreicht, was eine Arbeitszeitersparnis mit sich bringt.

Advantages of the method according to the invention and of the grid or mesh provided therewith are the following:

• It is a uniform smooth and uniform Armierungsschichte of reinforcing material without twice filling, as necessary in the prior art, achieved with a defined thickness, which brings a working time savings.

Furthermore, there is a higher security against mechanical damage and thus a longer life of the thermal insulation composite system facade according to the invention.

A thicker layer of reinforcement, as has been shown by building physics studies, fewer defects, therefore absorbs less moisture, can dry faster again and is thus an essential factor against "moisture traps" in the plaster structure, as the storage mass delays falling below the Tauproduktes, so that the surface stays dry longer. Not least, this results in a significant reduction in the risk of attack by microorganisms. Moreover, with thicker reinforcing layers, improved soundproofing results.

The spacers according to the invention provided on the grid or network can be connected to the grid or network in any way. So the spacers can be glued. Another possibility is to connect the spacers (if they are made of thermoplastic material) by fusing with the grid or mesh.

Finally, the invention contemplates that the spacers are latched to the grid or network or clamped by means of clamping bodies or screws.

In one possible embodiment of the invention, the spacers are convex on their side facing the facade insulation panels, eg hemispherical or frustoconical, formed, so that a substantially point-like contact is given. The other side of the spacers facing away from the facade insulation board is preferably flat so that smoothing out (stripping off) of the reinforcing compound is easily and easily possible.

Elongated spacers are tapered (wedge-shaped or cut-shaped) formed on their facade facing the Fassadendämmplatte side or provided with tapered projections.

The grid or mesh preferably used in the method according to the invention can have an edge region which has no spacers, so that overlapping with adjacent gratings or nets is possible without interfering with applied spacer bodies or resulting in an increased layer thickness.

In the context of the invention, grids or nets may also be designed for special applications, with edge protection elements or elements for connection profiles, such as expansion joint profiles, being taken into consideration.

In the context of the invention, it is preferred that the spacers, which are provided on the grid or net, protrude from the grid or net only to one side. In this case, it is preferred according to the invention that the spacer body of the grid or net to the wall at which the spatula or the heat-bonding system is to be produced point, ie project away from the grid or net in the direction of the wall.

In other words, the grid or mesh is used so that the spacers are arranged on its wall-fed side.

• Fig. 1 in Ansicht ein erfindungsgemäßes Gitter mit Distanzkörpern,
• Fig. 2 eine Seitenansicht des Beispiels von Fig. 1,
• Fig. 3 in Ansicht ein Dehnfugenprofil,
• Fig. 4 eine Draufsicht zu Fig. 3,
• Fig. 5 einen Kantenschutz,
• Fig. 6 eine Draufsicht zu Fig. 5,
• Fig. 7 in vergrößertem Maßstab eine Ausführungsform von kreuzförmigen Distanzkörpern an einem Gitter oder Netz,
• Fig. 8 in einer anderen Ansicht das Gitter oder Netz aus Fig. 7,
• Fig. 9 schematisch im Querschnitt einen Aufbau eines erfindungsgemäßen erhältlichen Wärmedämmverbundsystems,
• Fig. 10 schematisch einen kleinen Ausschnitt aus einem erfindungsgemäßen Gitter oder Netz,
• Fig. 11 ein Sockelprofil,
• Fig. 12 ein Dehnfugenprofil für Innenecken,
• Fig. 13 ein Bewegungsprofil (horizontal),
• Fig. 14 ein Tropfkantenprofil,
• Fig. 15 ein Blechanschlussprofil,
• Fig. 16 eine Ausführungsform mit langgestreckten Distanzkörpern und
• Fig. 17 die Ausführungsform von Fig. 16 in Seitenansicht.

Further details and features of the invention will become apparent from the following description in which reference is made to the accompanying schematic drawings. It shows:

• Fig. 1 in view of an inventive grid with spacers,
• Fig. 2 a side view of the example of Fig. 1 .
• Fig. 3 in view an expansion joint profile,
• Fig. 4 a plan view too Fig. 3 .
• Fig. 5 an edge protection,
• Fig. 6 a plan view too Fig. 5 .
• Fig. 7 on an enlarged scale, an embodiment of cross-shaped spacers on a grid or net,
• Fig. 8 in another view, the grid or network Fig. 7 .
• Fig. 9 FIG. 2 is a schematic cross-sectional view of a structure of an available thermal insulation composite system according to the invention, FIG.
• Fig. 10 schematically a small section of a grid or mesh according to the invention,
• Fig. 11 a base profile,
• Fig. 12 an expansion joint profile for inside corners,
• Fig. 13 a movement profile (horizontal),
• Fig. 14 a drip edge profile,
• Fig. 15 a sheet connection profile,
• Fig. 16 an embodiment with elongated spacers and
• Fig. 17 the embodiment of Fig. 16 in side view.

A heat insulation composite system which can be produced with the aid of the method according to the invention using a grid according to the invention has, for example, the in FIG Fig. 9 in section schematically shown construction. On a wall, not shown, for example, by gluing facade insulation panels 1, for example, facade insulation panels 1 made of foamed plastic (polystyrene or polyurethane) attached. On the outside of the facade insulation panels 1, a layer 3 of reinforcing compound (adhesive spatula) is applied and removed with the aid of a toothed spatula, so that the outer surface of the facade insulation panels 1 with a layer 3 of reinforcing compound (also called "putty") is occupied. The nature and composition of the reinforcing material forming the layer 3 is not essential to the invention. Mineral-bound (eg cementitious) reinforcing materials can be used as well as resin-bound reinforcing materials.

In the layer 3 of reinforcing compound, a grid or network 5 is inserted with spacers 7, wherein in the illustrated embodiment, the spacers 7 protrude from the grid or network 5 only on the facade insulation panels 1 facing side of the grid or network 5. After inserting the grid or net 5, the surface is coarsely brushed so that the grid or mesh 5 or the spacers 7 are covered with reinforcing compound (for example adhesive spatula). Finally, the outer surface 9 of the layer 3 of reinforcing material is brought into line with a grayling or surface spatula. Once this is done and the layer 5 reinforcing material cured, e.g. is set, an outer layer 11 is applied to complete the thermal composite system 10.

In Fig. 10 It is shown that the spacers 7 are provided at nodes of the grid or network 5. But this is not mandatory, because like the Fig. 1 to 8 show, it is only advantageous if spacers 7 are evenly distributed over the surface of the grid or network 5, for example, according to a predetermined grid distributed.

The spacers 7 may be plastic body or plastic foam body with any shape itself. It is advantageous if the spacers 7 from the grid or network 5 only on one side, that is the façade insulation panels 1 facing side, protrude (see. Fig. 9 ). The spacers 7 may be cube-shaped, cuboidal, strip-shaped or strip-shaped, hemispherical, conical, frusto-conical or cylindrical bodies.

For example, the spacers 7 facing the facade insulation panels 1 with a hemispherical side 8. But it can also be provided cross-shaped spacers 7 ( Fig. 7, 8 ). The spacers 7 may be full or (at least partially) hollow. It is possible in the spacers 7, or individual of the same, a placement, eg sensors for temperature and / or humidity to order.

In order to be able to lay grids or nets 5 according to the invention with overlapping edges, free edge regions 15 are preferably provided by spacer bodies 7, which can have, for example, a width of approximately 10 cm.

How the particular Fig. 2 . 4 . 6 and 9 show, the spacers 7 are projecting only on one side of the grid or network 5 on the side facing the wall on which a composite thermal insulation system 10 is to produce.

In the Fig. 3 embodiment shown is intended for connection profiles 21, for example, an expansion joint profile for the production of dense Gebäudemehnfugen, with eg 5 to 25 mm wide. In this embodiment, 5 longitudinally running profiles 23 made of metal or plastic are provided with the grid or network, which have an elasticity in the direction transverse to, ie transversely to its longitudinal extent. This elasticity is achieved, for example, by providing a longitudinal curvature 25 with, for example, a semicircular cross section.

FIGS. 5 and 6 show the application of the inventive concept grid or mesh 5 with spacers 7 on an edge protection profile 27, with fabric or plastic angle to form exact conclusions at bent edges or angles above or below 90 ° with welded fabric strip and peel edge.

Fig. 11 shows that the invention, in particular the grid or mesh 5 with spacers 7 is also usable with a base profile 29 (made of plastic) for minimizing thermal bridges. Shown is a version with drip edge 31, welded glass fiber fabric with spacers 7 and connector system for high security against cracks occurring in the joint area.

Fig. 12 shows an inventive expansion joint profile 33 with V-shape with glass fiber fabric for inner corners for the production of dense Gebäudemehnfugen from 5 to 25 mm wide.

Fig. 13 illustrates how the invention can be used in a motion profile 21 for forming horizontal movement joints, for example, when heights or the like. The motion joint sealing tape can be laid joint-free in a separate step.

Fig. 14 shows an embodiment of the grid or net 5 according to the invention as a drip edge profile 35 with drip nose 37 for producing a clean drip edge on recessed facades, window and door openings, roller shutter box terminations, balconies, etc.

Fig. 15 shows the application of the invention to a sheet metal connection profile 39 for attachment to sheet metal connections (eg roof edge termination) for producing a mobile, impact-resistant connection between the thermal insulation composite system and sheet metal.

FIGS. 7 and 8 show an embodiment in which the spacers 7 are cross-shaped plastic parts.

The invention is not limited to a substrate made of facade insulation panels 1, in particular facade insulation panels 1 made of expanded plastic, such as polystyrene, but can in principle be used in all thermal insulation composite systems 10.

It is also not necessary that the spacers 7 are evenly distributed over the surface of the grid or network 5. It may also be necessary, for example, in certain applications that spacers 7 are set closer to certain areas of the grid or network 5 than in other areas of the grid or network 5.

The spacers may be different than those in the Fig. 1 to 14 also be shown elongated embodiments shown. For example, the spacers are strip-shaped body 41. The elongated spacers 41 are either linear - they then have on their the facade insulation panels 1 side facing a cut or wedge-shaped cross-sectional shape ( Fig. 16 ) - or punctiform ( Fig. 17 ) - They then have on their the facade insulation panels 1 side facing several hemispherical or pyramidal or frustoconical projections 43 to facade insulation panels 1 at.

Thus, the decisive for the heat transfer size of the contact surface between spacers 41 and facade insulation panels 1 is kept small.

On their side facing away from the facade insulation panels 1, the elongated spacers 41 may preferably also be wedge-shaped or cut-shaped.

In any case, provide elongated spacers 41 a good guide for grape bunches or surface trowels, so that a flat outer surface of the reinforcing material is ensured.

Elongated spacers may be connected to the grids or nets 5 in any manner and either parallel to each other or crossing each other.

In summary, an embodiment of the invention can be described as follows.

A thermal composite system 10 has on facade insulation panels 1, a layer 3 of reinforcing material. The layer 3 of reinforcing material is prepared in which a layer of reinforcing compound is applied to the outside of the facade insulation board 1 and pulled off with a toothed spatula. Then, a grid or mesh 5 is introduced into the reinforcing compound with the facade insulation panels 1 projecting spacers 7 so that the facade insulation panels 1 facing ends 8 of the spacers 7 abut this. Then further reinforcing material is applied and removed, which leads to a uniformly thick layer 3, since the layer thickness is predetermined by the grid or network 5 with spacers 7. On the outside 9 of the layer 3, an outer layer 11 can still be applied.

Claims (15)

A method for producing a filling, in particular a spatula in thermal insulation systems, characterized in that on a substrate a grid or a network is applied with spacers that a filler is applied and that the filler removed at the level of the free, remote from the ground ends of the spacers becomes. A method according to claim 1, characterized in that a textile glass mesh or mesh is used as a grid or network. A method according to claim 1 or 2, characterized in that a grid or network is used which carries spacers at intersections or nodes. Method according to one of claims 1 to 3, characterized in that a grid or a network is used, which distributes over the surface of the grid or network, in particular evenly distributed spacer carries. Method according to one of claims 1 to 4, characterized in that the provided with spacers grid or network is placed in a layer applied to the substrate layer of filler. A method according to claim 5, characterized in that after inserting the grid or the network, a further layer of putty is applied and removed. Method for producing a heat-bonding system, in which wall insulation panels are applied to a wall, on which a mass is applied, and in which a grid or network is arranged with spacers in such a way that the spacers from the grid or network facing the wall in that a reinforcing compound is applied to the facade insulation panels as filling, that the mesh or grid provided with spacers is inserted into the reinforcing compound and coated with reinforcing compound, that the reinforcing material is then smoothly stripped and that finally after hardening of the reinforcing material an outer layer is applied. A method according to claim 7, characterized in that a mineral-bonded, in particular cementitious, reinforcing compound is used as the reinforcing compound. A method according to claim 7, characterized in that a reinforcing compound bound with synthetic resin is used as the reinforcing compound. Method according to one of claims 7 to 9, characterized in that facade insulation panels are used made of expanded plastic. Method according to one of claims 7 to 10, characterized in that the reinforcing compound is applied to the facade insulation panels and pulled off with the aid of a toothed spatula, before the grid or network is inserted. Method according to one of claims 7 to 11, characterized in that the after coating of the grid or network screed reinforcing compound is withdrawn with a grape pickle and / or a surface spatula. Grid or net (5) for use in the method according to one of claims 1 to 12, characterized in that the grid or net (5) distributed over its surface with spacers (7) is fitted. Grid or net according to one of claims 11 or 12, characterized in that the spacers (7) project beyond the grid or net (5) only on one side. Grid or net (5) according to one of claims 13 or 14, wherein the grid or net (5) distributed over its surface with spacers (7, 41) is fitted and to the spacers (7, 41) only on one side of the grid or net (5), characterized in that the spacers (7) are essentially hemispherical bodies or that the spacers are elongate bodies (41), in particular rod-shaped or strip-shaped bodies (41), which are arranged crossing each other.

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