WO2009077273A2

WO2009077273A2 - Planar façade element and system

Info

Publication number: WO2009077273A2
Application number: PCT/EP2008/065460
Authority: WO
Inventors: Heinz Barth
Original assignee: Insu-Fast Gmbh
Priority date: 2007-12-18
Filing date: 2008-11-13
Publication date: 2009-06-25
Also published as: DE202007017653U1; ATE509756T1; EP2227380A2; EP2227380B1; WO2009077273A3

Abstract

The present invention relates to a planar façade element or similar surface element, which can be installed in prefabricated form to a structure (1) by way of corresponding installation means to form a façade (2) or similar wall or ceiling surface (3), comprising a planar carrier element (6), and a, particularly waterproof, cover layer (8), which is or can be disposed on at least one front (9) of the carrier element (6), wherein an edge protection profile (10) is provided, which is cast on at least one front (11) of the carrier element (6) in a statically effective manner and is configured such that the cover layer (8) is connected to the edge protection profile (10), or can be connected to the same, in a watertight connection. The invention further relates to a method for the production of such a façade element. The invention further relates to a façade system or similar wall or ceiling system, comprising at least two planar façade elements of the type mentioned above, which can be installed on a structure (1) adjacent to each other to form a façade (2) or similar wall or ceiling surface (3), wherein the edge protection profiles (10) cast at least on the fronts (11) of the two carrier elements (6) facing each other are connected to each other by means of an adhesive bond (26). The invention also relates to a method for the production of such a façade system.

Description

Flat facade element and system

description

The present invention relates to a facade element or the like surface element, the prefabricated via appropriate mounting means on a building to form a facade or the like wall or roof surface is mountable, comprising a flat support member and a, in particular waterproof cover layer disposed at least on a front side of the support element or can be arranged.

In addition, the present invention relates to a method for producing such a facade element.

Furthermore, the present invention relates to a facade system or the like wall or ceiling system, comprising at least two planar facade elements of the type mentioned, which are adjacent to each other to a building to form a facade or the like attachment shell mounted.

Also in this context, the present invention relates to a method for manufacturing or assembly of such a facade system.

Such facade elements or systems are known from the prior art. They usually serve the shuttering of structures and in particular of external insulation mounted there. Depending on the training as vapor-permeable or diffusion-closed systems, they are ventilated or not ventilated.

The outer insulation systems known from the prior art, also called heat-bonding systems, usually comprise planar insulation elements, which in particular are provided by Kie be applied to the building. Among other things, for mechanical protection, these insulation elements are then provided with a protective coating or similar coating. However, such a solution is very labor-intensive and offers in particular for the sensitive thermal insulation is not sufficient mechanical protection. Such a solution is inadequate, in particular when using the vacuum insulation which is available on the market in the meantime.

Object of the present invention, therefore, it is a facade element or similar surface element or system of the type mentioned in such a way that it is cheaper to manufacture, easier to assemble and in particular with respect to the mechanical protection and the overall visual impression improved.

This object is achieved by a facade element or similar surface element according to claim 1, by a method for producing such a facade element according to claim 6, by a facade system or the like wall or ceiling system according to claim 9 and by a method for manufacturing or assembly of such a facade system Claim 13 solved.

In particular, this object is thus achieved by a facade element or similar surface element, which is prefabricated substantially prefabricated via appropriate mounting means on a building to form a facade or the like wall or roof surface, comprising a flat support member and a, in particular waterproof cover layer, at least is arranged or can be arranged on a front side of the support element, wherein an edge protection profile is provided, which is cast on at least one end face of the support member statically effective and designed such that the cover layer is in watertight connection with the edge protection profile or can be brought.

An essential point of the aforementioned facade element is that a component is created by the formation of a molded edge protection profile on the support element, which is in watertight connection with the cover layer or can be brought, which also withstands strong weathering. The edge protection profile is thereby cast on the carrier element, that it fulfills both a static function, in particular with regard to the adhesive connection of two such edge protection profiles described later on, but also forms a weather protection for the carrier element itself. In this context, it should be noted that the above-mentioned cover layer can already be arranged on the carrier element during production, depending on the design of the facade element, or else can be applied to the carrier element in a separate production step. In so far, therefore, the edge protection profile is designed so that in the production of the edge protection profile with the cover layer in operative connection and in particular waterproof connection occurs or only in the formation of the cover layer on the already cast edge protection profile.

By forming an edge protection profile on the carrier element, moreover, the carrier element itself is protected against mechanical stresses, in particular during transport and assembly, so that less rejects occur until completion. In addition, the post-processing steps are reduced after the finished assembly to eliminate transport damage.

As mentioned, the above object is achieved by a method for producing the above-mentioned. Facade element solved, comprising the following steps: Forming and in particular cutting out at least one groove and in particular longitudinal groove on a back side of the support element with a depth (t), so that the front side there remains a cover layer and / or a thin-layer support element layer remains; Pouring the groove with a hardening casting material, in particular cast plastic, to form a poured facade element; Separating the poured facade element along the groove such that forms at least one facade element with molded on the support element edge protection profile.

This method offers significant advantages over the prior art. Thus, the formation of a "cast groove" on the rear side of the carrier element permits the very simple and cost-effective production of the cast-on edge protection profile, since the additional use of explicit formwork elements during manufacture can be dispensed with poured out of a cast plastic and exposed after curing, the resulting or the resulting edge protection profiles.

Preferably, the edge protection profile is at least partially to a back of a thin-layer carrier element projection, which protrudes on the front side over the end face of the support element, and / or cast on a back of the cover layer. Such a construction arises in the above method, namely if the groove is so pronounced. is formed such that its "bottom surface" is formed by a thin-layer carrier element layer, ie such a layer of the carrier element, which is just not milled or cut .. The cast material cast into this groove preferably substantially completely penetrates this thin-layer carrier element layer, so that a watertight connection with a cover layer arranged on the other side of this thin-layered carrier element layer, that is to say the front side of the carrier element or later applied, the penetrated thin-layer carrier element layer constitutes, in addition to the moisture barrier, a very effective mechanical edge protection.

Also in the formation of the groove with a depth up to the back of a arranged on the front of the support member cover layer results in a very fast and thus inexpensive manufacturing process. The casting material cast into a groove formed in this way forms a watertight connection with the cover layer arranged in the "bottom region" of the groove, whereby here too no further formwork elements have to be used to produce the edge protection profile.

Without the use of further formwork parts, according to the invention, the edge protection profile can be cast in the carrier element and in particular on an end face of the carrier element formed by the groove. After separating the hardened casting material together with the "bottom area" of the groove, this results in a facade element with edge protection profile cast on the carrier element.

In this context, it should be noted that the term waterproof here preferably an embodiment is understood, which is tight against water beating, but still allows vapor diffusion. In this respect, a correspondingly designed facade element or system can also be used without the formation of a ventilated facade as a facade component. In connection with this, it should of course be ensured that, in particular, the cover layer is also designed as a vapor-permeable and waterproof cover layer. This will be discussed in more detail below.

Basically, it is also possible with respect to the aforementioned facade element for producing the edge protection profiles to arrange two separate support members relative to each other to form a Gussfreiraumes and then fill it with a corresponding casting material and the two now encapsulated support elements along to divide this poured groove. Here, too, support elements are then formed with edge protection profiles cast on the end faces. However, this method has the disadvantage, compared to the method "with cut-out groove" described above, that a separate formwork must be used in the "bottom area" of the casting space.

Preferably, of course, during the pouring step, the grooved support element is arranged such that the "bottom area" of the groove is arranged horizontally, so that the initially liquid casting material can easily enter and harden into the groove with a hardening casting material "can also be understood a method in which an at least partially prefabricated edge protection profile is inserted into a groove and then by means of a casting material which at least partially penetrates the support member is molded to this.

Preferably, the carrier element has a wood-based and in particular a chipboard, wherein the edge protection profile is cast on at least one end face of this wood-based material board. Such a design is a fairly inexpensive way the o.g. Form facade elements. In addition, known from the prior art MDF, OSB or the like wood-based panels can be used. In particular, the known from the prior art problem of swelling of the moisture-sensitive wood-based panels is supported by the use of the edge protection profile according to the invention and its waterproof connection with the cover layer. Of course, instead of the o.g. Wood-based panels also all other static load-bearing plates used, which is relevant in this context, which contributes depending on the geometric design of the edge protection profile of this to increase the static load capacity of the respective facade elements. For example, an edge profile which is substantially rectangular in cross-section substantially increases the bending capacity of a chipboard.

Of course, in addition to the carrier element, the facade element may also comprise further elemental layers. Thus, for example, it is conceivable to mount an insulation element on the rear side of the carrier element such that the facade element can be mounted as a prefabricated component for insulating building structures. In addition, of course, the formation of complete wall elements is conceivable, in which case the facade element is preferably mounted on a corresponding support structure and ready-made. is delivered. These embodiments are hereby explicitly subsumed under the term façade element.

Basically, the use of Holzwerkstoff- or the like plates and in particular the use of moisture-sensitive plates in the untreated state offers a very inexpensive way façade elements or systems to produce. These panels have a much lower price compared to prior art panels known in the art, but offer the advantage of extremely low standard deviations, in particular as a result of the processing described herein, which results in very small structural tolerances.

Preferably, the edge protection profile is made of a hardening cast plastic, wherein it at least partially penetrates the support element. This design guarantees on the one hand a solid and statically resilient bond between Kantenschutzprofil- and support element, on the other hand, the formation of an effective moisture barrier to prevent the ingress of liquid and in particular water hammer into the support element. Here, too, preferably cast plastics are to be used, which are designed to be open to diffusion. It is also possible to use the material of the carrier element removed in the production of the cast groove in combination with a corresponding binder, for example synthetic resin, as cast material.

Preferably, the cover layer has a waterproof PU or the like vapor-permeable adhesive layer. For example, it is possible to form a PU adhesive layer on the front side of the carrier element and to sprinkle it with quartz sand. The result is a structure layer similar to a plaster, which is waterproof but non-permeable. Of course, all other structure-giving measures and elements are applicable in place of Quarzbesandung. As I said, the top layer can be applied before the manufacture of the edge protection profile or even after its completion. Theoretically, it is also possible to apply the cover layer only after the installation of the facade elements on the building, of course, especially the industrial manufacturing in the factory offers cost advantages compared to the production on the site.

It is possible, in the cover layer and / or the thin-layer support element layer in the region of the groove and in particular centrally to the groove width parallel to the extension direction of the groove to introduce a filling slot. This fill slot connects between the interior of the groove and the front of the cover layer or, if no such cover layer is provided, the support element. When pouring a groove formed in this way with filling slot from the casting material enters the groove and the filling slot, so that the edge protection profile not only forms in the region of the end faces and the backs of the cover layer or a thin-layer support element layer, but also extends to the front of the finished facade element. Such an embodiment offers advantages, in particular with regard to transport safety and the avoidance of damage.

As already described, the cross section of the edge protection profile is preferably designed such that it is essentially structurally effective in conjunction with the carrier element. In so far, the edge protection profile thus completely differs from the known from the prior art laminations of end faces, which usually serve only the visually appealing closure of end faces. But just the statically effective design of the cross section allows, in addition to the inclusion of tensile loads resulting from the below described in detail bonding of the individual edge protection profiles of individual facade elements with each other, and the removal of forces acting perpendicular to the facade elements, so that according to the invention very rigid facade element or system results.

In the formation and in particular the cutting out of the groove, the groove is preferably formed at least along a side edge of the carrier element to form a peripheral arranged lost shuttering web, which is removed during cutting, in particular milled or cut. Of course, it is also possible to form the groove under the definition of two resulting support elements such that form two resulting facade elements each with molded edge protection profile by the separating cut.

In the former case, the groove is formed at least partially along a side edge of the support element, wherein between the groove and the side edge of the support element a lost shuttering web remains. This formwork web forms a leg of the groove; So it serves as cast shuttering. After the casting material has hardened, this formwork web can be removed so that an edge protection profile results on the side edge of the carrier element. However, in parallel or instead, the groove can also be arranged such that it defines two resulting carrier elements, that is, for example, passes centrally through an output carrier element. After pouring out and then separating the groove, whereby here a cut is preferably made in the middle of the groove along the nut extension direction, two facade elements are created, which each have an edge protection profile along the "cut edge." Of course, depending on the geometry of the required facade elements, a mixture may also be used these two methods are applied.

In this context, it should be mentioned that it is of course also possible not only to provide the side edges of the support element with an edge protection profile, but also in the facade element required penetrations, for example, feedthroughs for water pipes, electrical connections, lightning rods or mounting points for downpipes or similar openings. Here, for example, corresponding holes in the facade element can be arranged, the side edges are provided with a corresponding edge protection profile. This edge protection profile can be cast on as described above, whereby here too it is possible to "mold" prefabricated edge protection profiles with appropriate casting material while penetrating the support element.

As mentioned above, the carrier element is designed such that it allows the application of a cover layer. This can be done both before the introduction of the cast groove and after the separation step described above and the formation of the edge protection profile or even on the construction site itself. To form diffusion-open facade elements, preferably a PU or the like vapor-permeable adhesive layer can be used. Of course, here all known from the prior art coatings can be applied, which meet the requirements in terms of weather resistance, water resistance and, if required, the diffusion tightness or diffusion openness. When using the facade elements according to the invention as roof formwork elements, the resistance values necessary for roof formworks can, of course, be maintained here. Here, then, the cover layer or the PU or the like vapor-permeable adhesive layer may of course also be a coating provided for roof structures. In this respect, all embodiments of the cover layer which can be selected as required are included in the scope of this invention. According to the invention, as already mentioned, the facade elements combined to a facade system or the like wall or ceiling system, the adjacent zueinender on a building to form a facade or the like wall or ceiling mountable facade elements via an adhesive bond between the zueinender pointing edge protection profiles on the front pages the carrier elements are connected miteinender. Especially the statically effective connection between edge protection profile and support element allows the formation of an adhesive bond here, which has grown even with large loads. Since due to the above-described production of the edge protection profiles by means of "cut or Frästrennung" the surfaces of the facing edge protection profiles are flat, a very resistant adhesive bond sets.

This facade system according to the invention is manufactured or assembled with the following steps: assembly of the facade elements on the structure such that at least one edge protection profile of one facade element is opposite to another edge protection profile of the other facade element to form an adhesive free space; Inserting an adhesive element and in particular an extruding foam or the like element into the adhesive clearance, so that the two opposite edge protection profiles are glued together; Ablating a possibly over the front of the facade elements or on the front of the support members protruding adhesive over Standes.

As adhesives all known from the prior art adhesive method can be used here, preferably such adhesive methods find their application, which correspond in terms of their material properties and in particular with regard to their thermal behavior of the facade elements. Preferably, extruded foams are used for this purpose, which are injected into the adhesive free space and produce a firm connection between the two facade elements with expansion. In principle, adhesives which likewise have a diffusion-open property are preferred for this purpose. Of course, it is also possible in this context to use a profile element which can be pasted into the intermediate space by applying an adhesive on both sides, and such an embodiment is also included so far from the wording that the two edge protection profiles are glued together. The adhesive is preferably an elastic adhesive in order in particular to be able to remove component stresses which result, for example, from temperature fluctuations. Preferably, at least one cover element is arranged on the flat front side of the façade system, wherein the cover element at least partially overlaps the adhesive bond and the edge protection profiles of the two façade elements glued together. On the one hand, such a design guarantees the mechanical protection of the adhesive bond on the other hand, but it also allows the watertight closure of the two side edges of the facade elements lying opposite each other here. If, for example, a facade element is designed in such a way that it has only a carrier element without an applied cover layer, the cover element can achieve a sufficient sealing of the transition between the carrier element and the edge protection profile by arranging the cover element in such a way that it seals the splice, the edge protection profile and an adjoining one Covered area of the support element. At this cover element can then be applied and connected in a further or a previous step, a corresponding sealing cover layer.

Preferably, the cover element is substantially flush with the surface of the front of the facade elements in a recess formed there, in particular groove, used and in particular glued. Such a recess is preferably introduced along the splice in the edge protection profiles and / or the adjacent areas of the cover layer and / or the support element, in particular the support element projections, if they are present, the two facade elements and in particular milled. In the embodiment of the facade elements with cover layer while the recess is preferably to be selected so that the cover element is formed flush with the adjacent surface layer of the two facade elements after gluing. With a correspondingly accurate milling of the recess, the cover element can thus be connected to the cover layer of the individual facade elements almost without transition, so that a uniform surface structure results. The adhesive used for introducing the cover element or the like means is preferably formed so that it guarantees a watertight connection of the cover layer and the cover element and thus acts in particular in the transition region between cover element and cover layer sealing against impact water.

Preferably, in this context, the recess is formed such that it extends only in the region of the edge protection profiles, wherein the adjacent cover layer partially overlaps these edge protection profiles. In so far is therefore the Joint between cover element and cover layer in the region of the waterproof edge protection profile, so that no penetration of moisture is to be feared.

In order to reduce the workload when forming and in particular milling out the recess, it is preferable to guide an intended cover layer in the direction of the edge regions of the facade element only slightly into the area in which the recess is formed later. In so far so only a small part of the cover layer must be removed to form the recess.

The manufacturing process for the recess for receiving the cover element is preferably carried out before the bonding step, ie the bonding of the two edge protection profiles of the individual facade elements, since then the free end faces of the edge protection profile can be used as a guide element for a milling tool. After the corresponding milling of the recess, the facade elements are then glued together via the edge protection profiles, a possibly existing adhesive element projection removed and introduced the cover element.

From this it is clear that the order of the above-mentioned process steps for the production or assembly of the facade system does not necessarily have to be subject to a fixed sequence; they may vary depending on the tool used, facade element construction, adhesive used, etc.

Naturally, a groove is formed between the cover element introduced into the recess and the edge protection profile adjoining this recess or the adjoining cover layer and / or an adjacent support element, which is preferably filled with a filler element substantially flush with the surface and structurally identical to the adjacent surfaces. For this purpose, all methods known from the prior art are applicable. After filling this groove, the fully assembled facade system can be painted over, resulting in a transition-free and uniform surface.

Further embodiments of the invention will become apparent from the dependent claims.

In the following, the invention will be described by means of exemplary embodiments, which will be explained in more detail by means of the attached drawings. Hereby show: Fig. 1 is a schematic representation of a building provided with a facade;

Fig. 2 shows an embodiment of the facade element according to the invention in

Cross-section;

Fig. 3 shows a further embodiment of the facade element according to the invention in cross section;

Fig. 4 shows a further embodiment of the facade element according to the invention in cross section;

Fig. 5 shows a further embodiment of the facade element according to the invention in cross section;

6 shows a cross section through an embodiment of the facade system according to the invention;

7 shows a cross section through a further embodiment of the facade system according to the invention;

Fig. 8-11 A schematic representation of the inventive method for producing the facade element of Figure 2 in cross section.

Fig. 12-16 A schematic representation of the inventive method for producing the facade element of Figure 4 in cross section.

Fig. 17-20 The manufacturing method shown in Figures 8-11 in a plan view;

Fig. 21-24 A schematic representation of the manufacturing process of the facade system of Figure 6 in cross section. and

Fig. 25-28 A schematic representation of another embodiment of the facade system in cross section; Hereinafter, the same reference numerals are used for the same and the same components, sometimes using high indices to distinguish them.

Fig. 1 shows a schematic representation of a building 1 and in particular of a house on which the facade elements 4 according to the invention or the facade system 30 to a facade 2 or (only schematically shown) are mounted to a roof surface 3. It is clear that the facade system 30 is composed of several facade elements 4, which are ready to assemble, so delivered taking into account all cutouts and projections and mounted on the building 1. Thus, Fig. 1 shows a window 41, a door 43 and a Durchläse 45 to which the facade elements 4 are already factory adjusted so that during assembly to the building 1 no changes must be made.

Figs. 2-5 show four imple mentation forms of the facade element 4 according to the invention in each case in cross section.

The embodiment shown in Fig. 2 of the facade element has a support member 6, on the front side 9, here the side which is usually facing the weather, a cover layer 8 is applied. This cover layer 8 is, for example, a PU adhesive layer, on which a quartz sand is scattered, so that a plaster structure results. Of course, other cover layers can find their application here.

However, it is relevant in this embodiment that the carrier element 6 is made of a wood-based material and in particular of a moisture-sensitive chipboard. Such chipboard are very accurate in terms of processing tolerances and compared to other elements used to form facades relatively inexpensive.

In order to produce a weather-resistant facade element 4 from this moisture-sensitive plate or the support element 6, edge protection profiles 10 are cast on the end faces 11 of the support element 4, which in this embodiment are also in water-tight connection with the cover layer 8. For this purpose, the edge protection profiles 10 were cast not only on the end faces 11 of the carrier element 6 but also on the back of the cover layer 8. Of course, it is also possible on the back 7 of the support element 6 to arrange a corresponding same or other cover layer (not shown). Fig. 3 shows a further embodiment, which does not differ in its construction from the embodiment of Fig. 2. Only the edge protection profile 10 shown on the left side is here mitred, so that, as described in more detail below, an arrangement of the facade elements 4 to a facade system on corner is possible.

4 and 5 show further embodiments of the facade element according to the invention, wherein the differences between Fig. 4 and 5 again lie only in the mitered edge protection profile 10.

The facade elements 4 illustrated here again comprise a carrier element 6 on whose front side regions 11 edge protection profiles 10 are cast. However, here the carrier elements 6 in the region of the front side 9 thin-layer carrier element projections

12, which are made in one piece with the carrier element 6. The molded edge protection profiles 10 are both with the end faces 11 and with the back

13 of the thin-layer carrier element projections 12 shed. In this case, the thickness of the carrier element projections 12 is selected such that the casting material used for producing the edge protection profiles 10 penetrates the carrier element projection 12 at least up to half, but preferably completely. The advantages gained from this will be discussed in more detail below (see FIGS. 25-28).

The embodiments of the facade elements 4 shown in FIGS. 4 and 5 also have a cover layer 8 which, however, has not been drawn here as far as the edge protection profiles 10 or support element projections 12. Also on this advantage is in the o. G. Fig. 25-28 with respect to the facade system according to the invention still in detail.

6 and 7 show two embodiments of the facade system 30 according to the invention, wherein the now shown in cross-section facade system 30 of FIG. 6 has already been shown schematically in Fig. 1 in a view.

From Fig. 6 can be seen two facade elements 4, 4 ', which correspond in their construction of the embodiment, as shown in Fig. 2. The two facade elements 4 are here co-planar on the building (not shown) mounted to form the facade 2, wherein they over the mutually facing edge protection profiles 10, 10 ', to the respective gene end faces 11, 11 'of the two facade elements 4 are connected via an adhesive connection 26 with each other. This adhesive connection 26 is preferably an elastic and in particular extruding foam, which ensures a firm connection between the two facade elements 4, 4 '.

The front side 15 of the facade system 30 is here formed by the cover layers 8, 8 'of the facade elements 4, 4', which are each arranged on the support element 6, 6 '. In the area of the adhesive bond 26, the cover layers 8 adjoin a cover element 28 which is arranged such that it overlaps the adhesive bond 26, the two edge protection profiles 10 and a part of the adjacent support elements 4, 4 '. The cover element 28 is exactly as thick as the cover layers 8, 8 'executed, so that there is a steady course of the surface structure on the front side 15 of the facade system 30. In order to ensure, in particular, a moisture protection of the carrier element 4 in this area, the cover element 28 is preferably inserted into this area via an adhesive, so that no water can penetrate from the outside 15 to the carrier elements 4. The grooves 32 shown here can, depending on the construction tolerances, be closed with a suitable sealant, so that after the surface of the front 15 of the facade system 30 is painted over, a nearly uniform surface structure results.

A similar embodiment is shown in Fig. 7, in which case the facade elements, as they have already been described in Fig. 3 find their application. The facade system 30 shown here is shown as an outer corner, wherein the facade elements 4, 4 'corresponding miter cut edge protection profiles 10, 10', which are also connected to each other via a corresponding adhesive member 25 and an adhesive bond 26. Here, too, a cover element 28 was applied in the form of a plaster or the like layer applied with a spatula, in order in particular to cover the adhesive bond 26.

In both embodiments, it is clear that the result of the combination of molded edge protection profiles 10 and waterproof cover layer 8 and cover element 28, a facade system 30, which guarantees a reliable protection of the otherwise moisture sensitive support elements 4 even with high rainfall. FIGS. 8-11 show an embodiment of the manufacturing method according to the invention for producing the facade element 4 already described in FIG. 2. The starting material is a carrier element 6, on whose front side 9 a cover layer 8 is applied. This covering layer is preferably diffusion-open, so that a diffusion-open facade element 4 (see FIG. 11) results in combination with the support element 6 produced as a chipboard.

As shown in FIG. 9, a groove 20 is cut into the carrier element 6 in the region of its side edges, which groove extends to the rear side 13 of the cover layer 8 due to its depth t. This groove 20 is designed so that it is limited to the edge 5 through each a formwork web 16. The thickness of this formwork web 16 is to be chosen so that a chipping of the support member in this area and thus destruction of the formwork web 16 during cutting of the groove 20 is prevented.

Depending on the strength of the carrier element used and the required resistance, the width of the groove 20 is between one and ten millimeters, preferably four millimeters. With four millimeter groove width, a conventional saw blade can be used to form the groove 20.

After completion of the groove 20, this is filled with a hardening casting material 22 (FIG. 10), wherein the casting material preferably penetrates partially over the end faces 11 into the carrier element 6, so that a firm and, in particular, statically resilient connection is ensured. In this embodiment, moreover, the casting material 22 connects to the back 13 of the cover layer 8.

After curing of the casting material 22, as shown in Fig. 11, the respective shuttering web 16 is removed and in particular cut off, so that a finished facade element 4 with arranged on the end faces 11 of the support member 6 edge protection profiles 10 results. Preferably, the cutting guide for the removal of the shuttering webs 16 is selected so that a part of the cured cast material 22 is removed. As a preferred width, a narrowing of the hardened cast material 22 by one millimeter has proven to be advantageous here with a groove of four millimeters, so that an edge protection profile 10 with a width of approximately three millimeters results. In this context, it should be noted that, of course, are to be removed, inter alia, heavier loads on the facade element, other cross-sectional shapes are selectable.

A particular advantage of removing a portion of the cured casting material 22 to form the finished edge protection profile 10 is i.a. in that thereby a very flat and uniform surface structure of the edge protection profile is created, which guarantees an optimal adhesion of an adhesive 25 (see in particular Fig. 6) during assembly of the facade system 30.

FIGS. 12-16 show a further embodiment of the production method according to the invention for a facade element 4. This facade element 4 has already been described in FIG. 4. Starting material here is a carrier element 6, which is formed as an uncoated chipboard.

As shown in FIG. 13, grooves 20 are also cut into the carrier element 6 and in particular in its edge region 5 from the rear side 5 of the carrier element 6, in which case the depth t of the groove 20 is determined such that a thin-layer carrier element layer 14 remains.

As shown in Fig. 14, the resulting groove 20 is then filled with a casting material 22, wherein the thin-layer carrier element layer 14 and the randsei term arranged shuttering web 16 form a mold. Due to the open-pore design of the chipboard acting as a carrier element 6, the casting material 22 penetrates both the end face 11 of the carrier element 6 and its thin-layer carrier element layer 14. The thickness of the carrier element layer 14 is selected such that the casting material 22 essentially extends substantially to the front side 9 of FIG Carrier element 6 penetrates.

As shown in FIG. 15, after the casting material 22 has hardened (see FIG. 14), the formwork web 16 and part of the hardened cast material 22 are removed so that the edge protection profile 10 which is cast on the end face 11 of the carrier element 6 results Embodiment also is molded on the back 13 of a formed by cutting carrier element supernatant 12. As shown in FIG. 16, in a final processing step, the cover layer 8 is then applied to the front side 9 of the carrier element 6, wherein in this embodiment again the cover layer 8 is not pulled forward to the carrier element projection 12 or to the edge protection profile 10 (laterally).

FIGS. 17-20 show the manufacturing method of the carrier element 4 shown in FIGS. 8-11 in a plan view. Visible here is the groove 20 (FIG. 18) arranged on the support element 6 in the region of the side edges 5, which is poured out with the casting material 22 to form a cast-out facade element 24 (FIG. 19). The shuttering web 16 delimiting the groove 20 in the edge region 5, as shown in FIG. 20, is removed after curing of the cast material 22, so that the facade element 4 results in edge protection profiles 10 arranged on the end side regions of the support element 6.

Further, in Figs. 17-20, a manufacturing method for forming the passage 45 shown in Fig. 1 is shown. About such a passage, for example, an external power supply, a satellite antenna or even a roof drainage can be performed.

The starting point for the formation of such a passage is a hole 47 shown in FIG. 17, which is formed in the carrier element 6. An edge protection element 48 whose diameter is smaller than the diameter of the hole 47 (FIG. 18) can be inserted into this hole in a further processing step. In the intermediate space 49 formed thereby, a casting material 22 can subsequently be introduced which, after hardening, firmly connects the edge protection element 48 to the carrier element 6 and, in particular, guarantees a watertight seal. As already described above, a cover layer (not shown) or a cover element is also used here in order to ensure a watertight connection between the cast-in edge protection element 48 and the remaining "seal" of the facade element 4.

Of course, it is also possible, instead of the method described here for the formation of a passage 45, to use the previously described methods for producing the edge protection profiles (see FIGS. 8-11 and 12-16) and in particular to form a circumferential casting groove, which is then poured out , It should be mentioned that, of course, depending on the material, it is also possible to make the formwork web used for casting so thin that it almost completely coalesces during casting Interspersed casting material. A separation of the shuttering web is then not mandatory.

FIGS. 21-24 show an embodiment of the method according to the invention for the production or assembly of the facade system 30.

As shown in FIG. 21, the facade elements 4, 4 'are mounted on the structure (not shown) in such a way that one edge protection profile 10 of one facade element 4 is opposite to another edge protection profile 10' of the other facade element 4 'forming an adhesive clearance 27.

As shown in FIG. 22, a recess 29 is then milled into the two facade elements 4 in the area of the adhesive free space 27. In this embodiment, on the front side 9 of the facade elements 4, 4 'and the support elements 6, 6' arranged cover layer 8 is almost completely removed. In this case, the depth of the recess 29 is preferably selected such that, in the following, a cover element 28 (see FIG. 24) can be used flush with the surface to the adjacent cover layers 8, 8 '.

In a construction of the cover layer 8 with a PU adhesive layer and a structural layer arranged thereon, for example a quartz sanding, the recess 29 is preferably designed such that only the quartz sanding is removed and the PU adhesive layer on the respective support element 6, 6 'of the facade elements 4, 4 'remains. Such a procedure is generally preferred when using a fluid-tight cover layer 8, 8 'in order to prevent the entry of moisture over the front side 15 of the facade system 30. However, as will be described below, sufficient moisture protection can be achieved even if such a moisture protection layer is damaged by way of an adhesive layer, with which the cover element 28 is adhesively bonded in the recess 29.

As shown in FIG. 23, after the formation of the recess 29, the adhesive clearance 27 is filled with an adhesive element 25 and here with an extruding foam and thus the two facade elements 4, 4 'are glued together via the two edge protection profiles 10, 10'.

As shown in FIG. 24, after curing of the adhesive element 25, an adhesive protrusion 23, possibly projecting beyond the front side 9 of the carrier elements 6, is produced flush with the surface and the previously formed recess 29 filled with a cover element 28. The cover element 28 is preferably designed as a flexible band element which has a surface structure which corresponds to the surface structure of the adjacent cover layers 8, 8 '. In the formation of the cover layer 8 as a PU-bonded quartz sand layer, the cover element 28 is also preferably sanded with a quartz sand.

After the cover element 28 is inserted into the recess 29, the grooves 32 formed between the cover element 28 and the adjacent cover layers 8, 8 'can be closed by a plastic or elastic sealant (not shown). On the one hand, this sealant guarantees a uniform surface structure and, on the other hand, also prevents the penetration of moisture, which could possibly damage the moisture-sensitive carrier element 6.

FIGS. 25-28 show a further embodiment of the method according to the invention for producing or assembling the façade system 30. Again, façade elements 4 are aligned relative to one another to form an adhesive clearance 27. The facade elements 4 used here have already been described with reference to FIG. 4.

As shown in FIG. 26, here too, after the facade elements 4 have been mounted on the structure 1 (not shown), a recess 29 is milled into the facade elements 4 on the outside 15 and in particular again into the cover layers 8, 8 '. As already described with reference to FIG. 4, the cover layer 8 is preferably not pulled up to the respective edge protection profiles 10, 10 'of the facade elements 4, 4', so that only small areas of the cover layer 8 have to be removed. This simplifies the milling process and also protects the used milling tool.

As shown in FIG. 27, the adhesive free space 27 is then filled again with an adhesive element 25 which connects the two facade elements 4, 4 'via an adhesive connection 26.

As shown in FIG. 28, a cover element 28 is then again flush-mounted, after the removal of a possibly existing adhesive element projection 23, in the recess 29 flush with the surface layer 8, 8 'of the adjacent facade elements 4, 4'. In FIG. 28, it becomes clear that the fluid-tight connection between the edge protection profile 10 and the cover layer 8 and / or the support element layer 14 (see FIGS. 12-16) used during manufacture by the corresponding thin-layered selection of the support element projection 12 or through the penetration of the casting material. the glued-on cover element 28 is ensured. The casting material which has penetrated into the carrier element projection 12 ensures, above all, that no moisture can penetrate, in particular via the end faces of the carrier elements 6.

reference numeral

1 building or house

2 facade

roof

4 façade element

5 side edge

6 support element

7 back side

8 topcoat

9 front side

10 edge protection profile

11 front side

12 carrier element projection

13 back side

14 carrier element layer

15 front side

18 formwork web

20 groove

22 casting material

23 adhesive element projection

24 Cast-out facade element

25 adhesive element

26 adhesive bond

27 adhesive clearance

28 cover element

29 recess facade system

groove

window

door

Durchläse

hole

Edge protection element

gap

depth

Claims

Flat facade element and system claims

1. Flat facade element or similar surface element, the prefabricated via appropriate mounting means on a building (1) to form a facade (2) or the like wall or roof surface (3) can be mounted, comprising a flat support member (6) and one, in particular waterproof Cover layer (8), which is arranged or can be arranged on at least one front side (9) of the carrier element (6), characterized by an edge protection profile (10), which is structurally and efficiently formed on at least one end face (11) of the carrier element (6) in that the covering layer (8) is or can be brought into watertight connection with the edge protection profile (10).

2. Facade element according to claim 1, characterized in that the edge protection profile (10) at least partially to a rear side (13) of a thin-layer carrier element projection (12), the front side (9) on the end face (11) of the support member (6) protrudes, and / or on a rear side (13) of the cover layer (8) is cast.

3. Facade element according to claim 1 or 2, characterized in that the carrier element (6) has a wood-based material and in particular a chipboard, wherein the edge protection profile (10) is cast on at least one end face (11) of this wood-based material board.

4. Façade element according to one of the preceding claims, characterized in that the edge protection profile (10) is made of a hardening cast plastic and at least partially penetrates the carrier element (6).

5. Façade element according to one of the preceding claims, characterized in that the cover layer (8) has a waterproof PU or the like diffusion-open adhesive layer.

6. A method for producing a facade element according to one of the preceding claims, comprising the following steps:

• Forming and in particular cutting out at least one groove (20) and in particular longitudinal groove on a rear side (7) of the carrier element (6) with a depth (t), so that on the front side (9) a cover layer (8) arranged there and / or a thin layer Carrier element layer (14) remains;

Pouring out the groove (20) with a hardening casting material (22), in particular cast plastic, to form a cast-out facade element (24);

• Separating the poured facade element (24) along the groove (20) such that at least one facade element (4) forms with the edge protection profile (10) cast on the support element (6).

7. The method according to claim 6, wherein the groove is formed along at least one side edge of the carrier element to form a permanent shuttering web arranged at the edge, which is removed, in particular cut off, during the separating step.

8. The method according to claim 6 or 7, characterized in that in particular on the front side (9) a cover layer (8), comprising a PU or the like vapor-permeable adhesive layer, is applied to the carrier element (6).

9. façade system or the like wall or ceiling system, comprising at least two flat facade elements (4) according to one of claims 1 to 5, which adjacent to each other on a building body (1) to form a facade (2) or the like wall or roof surface can be mounted , characterized in that the at least at the mutually facing end faces (11) of the two support elements (6) cast-edge protection profiles (10) via an adhesive connection (26) are interconnected.

10. Facade system according to claim 9, characterized in that at least one cover element (28) on the flat front side (15) of the facade system (30) and in particular on the front side (9) of the support elements (6) is arranged, wherein the cover element (28) the adhesive bond (26) and the edge protection profiles (10) of the two glued facade elements (4) overlaps at least partially.

11. Facade system according to claim 9 or 10, in particular claim 10, characterized in that the cover element (28) substantially flush with the front side (15) of the facade elements (4) in a recess formed there (29), in particular groove, used and in particular is glued.

12. Facade system according to one of claims 9 to 11, in particular claim 10 or 11, d a d u r c h e c e n e c e s in that the cover element (28) is a flexible band element and in particular a

Surface structure corresponding to the surface structure of the cover layer (8).

13. A method for producing a facade system according to one of claims 9 to 12, comprising the following steps:

Mounting of the facade elements (4) on the building (1) such that at least one edge protection profile (10) of a facade element (4) opposite to another edge protection profile (10 ') of the other facade element (4') to form a Klebefreiraumes (27);

• Inserting an adhesive element (25) and in particular an extruding foam or the like element in the adhesive clearance (27), so that the two opposite edge protection profiles (10, 10 ') are glued together;

• Removal of a possibly over the front side (15) of the facade elements (4) or on the front side (9) of the support elements (6) protruding adhesive element projection.

14. A method according to claim 13, wherein a cover element is applied to the cladding elements bonded to one another such that the cover element partially overlaps the adhesive bond and at least the adjoining edge protection profiles of the facade elements.

15. The method according to claim 13 or 14, characterized in that along the adhesive clearance (27) in the edge protection profiles (10) and / or the adjacent areas of the cover layer (8) and / or the support element (6), in particular the support element projections (12) the two facade elements (4), front side (15) has a recess (29), in particular groove, complementary to the cover element (28) introduced and in particular milled.