DE20317103U1 - Fastening element for fastening on building of insulating course and ventilated protective layer, has metal shaft inserted from outside into insulating course and with first and second load application elements on respective ends - Google Patents

Abstract

The fastening element (27) for the fastening on a building (13) of an insulating course (15) and a ventilated protective layer in front of it, has a metal shaft for inserting from the outside into the insulating course. A first load application element (56) accessible from the first end (26) of the metal shaft is provided for connecting of the shaft to rod element (25) anchored in the building, and a second load application element (58) accessible from the second end (28) of the shaft connects the protective layer to the shaft. A radially protruding plastic flange (53) on the metal shaft acts as a retainer for the insulating course. An independent claim is included for a building shell with the proposed fastening element.

Description

The invention relates to a fastener for fastening an insulation layer and one in front of the insulation layer suspended, ventilated protective layer on a building. The invention further relates to a fastening system with such Fastening element and a building envelope with one ventilated Protective layer.

In this context, under building understood the component to be provided with clothing should. Under building cladding becomes the building enveloping Layer structure with thermal insulation and Weather or damage protection layer Roger that. This protective layer can also only be a representative layer with which the building an architecturally designed surface is given. Doesn't exist Need for thermal insulation, so can the building cladding also include only a protective layer or representative layer. In the following, both a weather protection layer, a protective layer against damage, as well as a layer of representation Roger that. This protective layer therefore serves at least one optical one Design of the building, also advantageous to protect thermal insulation against mechanical or other damage, and finally expediently if necessary also the weather protection of the layers below.

For building renovations and new buildings the building usually with a thermal barrier coating wrapped in mats or sheets and this thermal insulation layer with a protective layer protected. The protective layer protects thermal insulation Wetness and damage and serves the visual design of the building. The invention relates Fasteners for Building cladding, at which the protective layer has a curtain wall or a suspended ceiling is. These curtains Protective layers face each other directly on the thermal insulation layer applied plaster layers have the advantage that between thermal insulation layer and protective layer, an air layer can be provided which the ventilation and drying out the thermal barrier coating serves. However, these protective layers require one of the insulation layer independent Load transfer to the building structure.

It is known to support elements on the building to anchor in measured places. After attaching this Support elements become a thermal insulation layer applied around the support elements to the building surface and by means of Adhesive and / or so-called insulation mushrooms to the building bound. The protective layer is then attached to the support elements. The type of fastening is matched to the type of protective layer.

From Swiss Patent No. 569159 is a holding device for Facade or interior wall cladding, as well as interior or exterior cladding from Blankets described. This consists of a threaded rod that is in screwed into an anchor anchored in a load-bearing wall or ceiling is and at the other a threaded sleeve wearing. The threaded sleeve is in length their threaded bore adjustable. The end facing away from the threaded rod the threaded sleeve is provided with a second threaded hole, the diameter of which is smaller than the diameter of the threaded hole for the threaded rod. A screw is screwed into this second threaded hole, which with a countersunk head a support rail of the cladding panels holds. Before the cladding panels are screwed onto the support rails, an insulation material consisting of plates can be placed on the threaded rod pressed become.

A disadvantage of this holding device is that an insulation layer by the holding device not against the load-bearing wall or ceiling is held.

From the German utility model No. 92 01 698.7 is a curtainable Known facade system for the renovation of walls in panel construction. These walls to be renovated have a carrier shell, an insufficiently insulating intermediate layer and a weather shell. The facade system has at least one in front of one such wall curtainable Facade element (e.g. an insulation board made of mineral wool or polystyrene, with a plaster base on the outside Wire or glass fiber fabric) and a fastening device. This fastening device has a through the weather shell and anchors which can be fastened through the intermediate layer in the carrier shell on. The fastening device has a clamping plate that can be screwed onto the anchor to secure the weather shell and one that can be screwed onto the clamping plate dowel head for attaching a facade element to be hung in front of the weather shell.

The clamping plate is made of metal a shaft with a first and a second threaded section, and a retention area projecting radially from this shaft. The retention area and the shaft are both integrally formed from metal. The retention area is between the insulation layer and the weather pan arranged and pressed against the weather pan. The shaft of the clamping plate extends from the inside of the insulation layer in the insulation layer into it. The dowel head can be made of plastic and can be screwed onto the shaft.

This fastening device is for the Refurbishment of poorly insulated Buildings designed with a weather shell in front of an insulation layer. she is not suitable for the attachment of a thermal barrier coating and a rear-ventilated protective layer with a space in front of the insulation layer.

It is an object of the present invention propose a device with which a thermal insulation layer and, at the same time, a rear-ventilated protective layer which is suspended in front of the insulation layer can be attached.

This object is achieved according to the invention solved, that the fastener has an axial metal shaft for insertion from the outside into the insulation layer owns, this metal shaft is necessary so that in case of fire the protective layer does not detach from the building and falls off. At the Metal shank is a first load application device accessible from the first end of the metal shaft. This is used to connect the metal shaft to one anchored in the building Rod element. A second load application means is on the metal shaft accessible from the second end of the metal shaft and is used to attach the protective layer to the metal shaft. A plastic rim is molded onto the metal shaft, which protrudes radially from the metal shaft and as a retention area to hold back the insulation layer serves. An advantage of this fastener is that the protective layer has a sufficient to withstand a fire Connections to the building connected while the insulation layer is held by plastic parts. The plastic parts reduce compared to Metal parts heat transfer that Abstahlungfläche of the continuous metal parts and the cost of manufacturing the Fastener.

The plastic edge is advantageous a plastic encapsulation of the metal shaft. From thermal engineering establish the metal shaft is advantageous along its entire length Plastic encased, especially molded.

Thanks to that the plastic edge at the second end is formed of the metal shaft, the metal shaft lies behind assembly completely inside the insulation layer. The radiation from the metal shaft is therefore low. The plastic edge but you can too be formed between the ends of the metal shaft so that the metal shaft extends into the area of the rear ventilation for the protective layer.

However, the level one is preferred closer to the metal shaft lying surface of the plastic edge spaced from the second end of the metal shaft, and the metal shaft completely arranged on one side of this level. This means; that the Metal shaft with the fastener installed inside the damp course ends. The second end of the metal shaft to the surface of the is advantageous damp course covered by the plastic encapsulation, so that the heat transfer is minimized.

In this area of plastic molding, which is the end of the metal shaft is upstream and the fastener is extended beyond the length of the metal shaft Advantageously, a tool holder for a setting tool in the plastic edge educated. This tool holder is advantageously designed as a hexagon opening, which coaxial with the metal shaft is arranged. This allows the use of conventional setting tools. The second load application means is through this hexagon opening accessible.

The preferably one-piece fasteners serve both the attachment of the thermal insulation layer and the attachment the curtain Protective layer. The protective layer can be made from a variety of individually suspended or interconnected plate, board or slat-shaped elements consist. It can also consist of a large closed layer consist.

The load application means is preferably formed in a metal shaft made of stainless steel, which has the advantages of corrosion resistance and one for Metal low heat transfer connects with each other.

The first and second load application means are expediently coaxially aligned. However, the axes of the two load application means can also be spaced from each other. It can be attached to any fastener there may also be several second load application means. The coaxial Alignment has particular advantages in terms of production technology. So can Coaxially aligned load application means, if necessary, with the same Process step are produced, whereas a non-axial Alignment of the load attachment means require two work steps. In addition, the coaxial alignment ensures that compressive and tensile forces are ideal Transfer line become.

The first means of load application is expediently an internal thread, which is on an external thread, for example one in the building anchored or anchored threaded rod, can be screwed on. However, the first load application means can also be used as a quick connection system be trained. It can still be an external thread. The Fastening element can alternatively be a load application means for direct Anchoring in the building exhibit.

The second means of load application is preferably an internal thread. But this can also be done with a quick connection system or be an external thread. The internal thread has the advantage on that for attaching other parts to the fastener commercially available Screws can be used.

The metal shaft is advantageous a piece of pipe, which correspondingly with one or two internal threads and / or is provided with one or two external threads. In a preferred one embodiment the two load application means are the two ends of a continuous Internal thread in a stainless steel tube. The metal shaft advantageously has therefore a continuous internal thread. This conveniently has a constant diameter. Such a pipe is inexpensive produced.

The retention area is made of art material. By choosing plastic for the retention area, heat losses flowing through the fastening element can be minimized. The metal shaft is therefore advantageously surrounded by a plastic layer as a whole. The plastic layer and the metal shaft are expediently connected in such a way that the fastening element is in one piece.

A preferred fastener consists of a metal shaft with a plastic coating. To anchor the plastic encapsulation on the metal shaft are advantageous on the metal shaft Ribs, creases or knurls available. These influence thanks to a positive connection of the metal part with the plastic the connection of the two materials Cheap.

If also the thread diameter the internal thread of the first and second load application means is preferred are the same size, so the first means of load application can through an internal thread with a larger diameter, and that second load application means through an internal thread with a smaller one Be formed diameter.

The retention area is advantageous formed at least one claw, which is at a distance extends to the axis in the axial direction. This claw or this Claws extend after mounting the fastener in the insulation layer and prevent the fastener from rotating around the Fastener axis.

A fastening system according to the invention for building cladding, comprises a bar element, which bar element in a to be clad building can be anchored. The fastening system also includes one described above Fastening element for attaching a thermal insulation layer to a building. The Fastening element has a first matched to the rod element Load application means for interacting with the bar element on its first end.

This system allows customization the distance between the building surface to be clad and the retention area by a relative displacement of the fastening element to the rod element.

In addition, the system advantageously includes a Connection means for interacting with the second load application means and to attach a load to the fastener.

The rod element is expediently a Threaded rod. A threaded rod can be glued into a hole in the building or with a dowel inside the building be anchored. The system can therefore advantageously be matched to the bar elements Masonry anchors exhibit. These masonry dowels can be self-drilling.

The system can also include holding profile pieces, e.g. Angle profiles, which, with the attachment means at a single Fastener can be attached. Long support profiles, e.g. Angle profiles or wooden slats, which on several fasteners or holding profile pieces can be attached complement the system.

The thermal insulation layer has a selected layer thickness. On this layer thickness the length is also coordinated of the bar elements. The system therefore advantageously also includes the Insulation layer.

Is the protective layer, which with the fastening system in front of the thermal insulation layer is fastened, arranged vertically, so includes the fastening system also tie rods. These tie rods absorb vertical tensile forces and tie them back the thermal barrier coating through to the building. These tie rods can each consist of a sheet metal strip, the first fastening area has at one end, and a second fastening area has a second end. The attachment areas are through a diagonal tension band connected to each other, which the thermal insulation layer is arranged diagonally across. The outer mounting area is connected to a vertical support profile after installation, so that the vertical component of the transferred to the support profile Forces over the Transfer tie rod to the building becomes.

A building is clad according to the following procedure: First, a thermal barrier applied. The thermal insulation layer consists of sheets or mats. These are preferred first glued to later still to be mechanically attached. After applying as much of the surface as possible the thermal insulation layer measured a number of attachment points. At these attachment points a fastener is drilled through the insulation layer and in the building anchored. This makes the panels or mats of thermal insulation mechanical attached. additionally can if needed additional Dämmpilze used to mechanically attach the insulation layer to complete: Then the protective layer or a substructure of the protective layer attached to the second load application means of the fasteners.

For cladding a building with a thermal insulation layer made of plates or mats and one in front of the thermal barrier curtain The protective layer is thus operated as follows:

• 1. A fastener described above is connected to the building with the first load application means, the fastening element with a metal shaft extending along a geometric axis in the thermal insulation layer stretched in and with a radially projecting over the metal shaft Retention area to the thermal barrier coating is applied.
• 2. The load of the protective layer is applied to the second load application means of the fastener bound.

The thermal insulation layer is used to insulate the wall before measuring the fastening points and accordingly a placement of the fasteners. After that it will be beneficial a number of interacting with the first load application means Bar elements through the thermal insulation layer anchored through in the building. Through the subsequent Setting the fasteners is a very tight connection of the insulation layer secured to the fasteners. A stuffing of passage points of load-bearing angles or the like can thus be avoided become. This will minimize the continuous injury Thermal insulation layer ensured.

Thereafter, one is advantageous Retaining profile piece connected to the second load application means and the protective layer on the holding profile pieces attached. Between the protective layer and the thermal barrier coating are advantageous long support profiles attached to several fasteners or holding profile pieces. The support profiles are expedient arranged vertically so that it can support the load of the curtain vertically transferred to the tie rods can. However, it is not excluded to arrange the support profiles horizontally and vertical drawstrings to be distinguished from the supporting profiles.

This is not necessary with a ceiling covering Tie rods.

The protective layer can, for example also by means of screws directly on the second load application means of the Fastener or the retaining profile pieces are connected, or but are preferably attached to the support profiles.

The invention is described in more detail below with reference to the figures. It shows 1 a vertical section through a fastening point in a heat-insulated building outer wall with a fastening system according to the invention for a protective layer,

2 a horizontal section through the attachment point according to 1 .

3 a horizontal section through a heat-insulated building outer wall with a thicker heat insulation layer,

4 a perspective view of the fastener

5 a schematically illustrated sequence of operations of the method for fastening building cladding to a building.

In the 1 shown attachment point 11 For building cladding, the following wall structure shows from the inside to the outside: load-bearing structure (eg wall) of the building 13 concrete; single-layer thermal insulation layer 15 made of mineral fiber boards 17 with a plate thickness of 100 mm; airspace 19 , The representation and protective layer of the building cladding is not shown.

A fastening device extends axially through this layer sequence 21 , made up of the following parts: An undercut anchor 23 is in the building 13 drilled. In the undercut dowel 23 is a threaded rod 25 screwed in with an M8 thread. The threaded rod 25 does not reach through the insulation layer 15 through, but ends within the insulation layer 15 , The outer end of the threaded rod 25 is slotted, has a multi-surface, in particular a six-surface outer contour, or a multi-surface concave receptacle for a screwing tool. An engagement tool can therefore be used to engage the threaded rod 25 be taken. On the outer end of the threaded rod 25 is a fastener described in more detail later 27 with its first end 26 screwed. To the other end 28 the fastener 27 is with an M8 hexagon screw 43 an angular holding profile piece 29 screwed. On the holding profile piece 29 can not shown slats and on the slats, at a distance from the outer surface of the heat insulation layer 15 , the protective layer, not shown, are attached.

The slats connect a variety of similar fastening points 11 together. Each slat is connected to a tie rod at least near its upper end 31 , The tie rod 31 is in 1 shown with broken lines since it is not at every fastening point 11 is provided. The tie rods 31 transmit the vertical loads diagonally to the building 13 tied back tie from the slats to the load-bearing structure of the building 13 , The slats therefore take up the load of the protective layer and direct it onto the tie rods, which carry the loads onto the building 13 transfer. The tie rod 31 is with a first mounting section 33 on the building 13 anchored. A second attachment section 35 is on the fastener 27 , on the holding profile piece 29 , attached to a slat or to the protective layer itself. The two mounting sections 33 and 35 are with a drawstring 37 connected. The tie rod 31 can consist of a metal strip. This sheet metal strip then has two fastening sections 33 . 35 which by the drawstring 37 are connected. The drawstring 37 and the mounting sections 33 . 35 lie in two or three different levels. The first attachment section 33 is on a first level, that of the building 13 is applied. The drawstring lies on a second level that intersects this first level.

The cutting line can be horizontal, as in the 1 illustrated tie rod 31 the case is. The cutting line can also be vertical if the drawstring 37 opposite the mounting section 33 is twisted so that the plane of the drawstring 37 a vertical plane perpendicular to the thermal barrier coating 15 is. In this case, the second attachment section 35 lie in the same plane like the drawstring. The fastening section 35 is then on the cantilever leg of the holding profile piece 29 or screwed to the side of a crossbar. tie rods 31 are arranged in number matched to the load and at least for each vertical tension element (for example for each slat) at least near the upper end of the protective layer. Several tie rods can be arranged vertically one above the other. Anchoring the tie rods 31 is advantageously done in floor slabs or concrete walls.

The holding profile piece 29 is an angle profile and has at least one first hole 41 to hold a fastening screw 43 , The hole 41 in the first leg 45 is advantageously an elongated hole with a longitudinal extension perpendicular to the profile direction. This allows the holding profile pieces to be adjusted with respect to a vertical line through a series of fastening points 11 , On the second, projecting leg 47 are two elongated holes 49 available, the longitudinal extension of which is directed perpendicular to the surface extension of the building cladding. This longitudinal expansion allows adjustment of the battens with respect to a plane parallel to the surface of the thermal barrier coating. On the second leg 47 there are also two additional holes that allow the adjusted crossbar to be fixed in place.

The static system of such a construction can be described as follows: The load of a vertically arranged protective layer is over the tie rods 31 to the building 13 hanged. The attachment points 11 therefore only under pressure, but not under a shear load. As a result of wind load at the attachment points 11 tensile forces also occur. In the case of a horizontal protective layer, for example a suspended ceiling covering, step on the fastening points 11 only tensile forces. Tie rods can therefore be dispensed with.

Such a construction is basically with different rod-shaped fastening devices at the fastening points 11 possible. The suspension of the load via tie rods 31 allowed the attachment points 11 dimensioned much weaker in terms of shear and bending forces than with a load placed on the fastening points. This allows the use of round bars as support elements to support the suspended protective layer on the building 13 , An advantageous embodiment of such a support element has the structure described above.

Thanks to this structure, fastening elements of the same type can be used regardless of the layer thickness of the thermal insulation layer. This allows the fastening elements to be manufactured 27 in large numbers. The fasteners can differ in the thread diameter to meet different loading situations. The in 3 Horizontal section shown shows a fastening point with a thermal insulation layer 15 of 200 mm layer thickness. A first layer of thermal insulation boards 17 with a plate thickness of 140 mm is attached to the building. On this first layer is a second layer of thermal insulation boards 18 a plate thickness of 60 mm attached. The joints between the plates of the first layer are advantageously shifted compared to the joints of the plates of the second layer.

With this construction, the insulation layer is mechanically fastened at the same fastening points 11 like supporting the protective layer. This allows a reduction in the number of penetrations of the thermal barrier coating 15 with less good insulation elements. The structure with the fastening elements described below allows a reduction in the heat transfer at each fastening point in comparison with continuous round bars 11 , In addition, the mechanical fastening of the thermal insulation layer can be tightened until a retention area of the fastening element 27 against the thermal insulation board 17 or 18 pressed.

The fastener 27 which in the 1 to 3 on average and in 4 is shown in perspective view, has an insertion area 51 and a containment area 53 , The insertion area 51 is cylindrical and tubular around an axis 50 educated. It has an internal thread. It is sharpened towards the end. The insertion area 51 has an inner stainless steel threaded tube 55 and a this threaded tube 55 enveloping plastic tube 57 on. The threaded pipe 55 has both an internal thread and an external thread. The external thread is used to connect plastic and metal. The threaded pipe 55 has a first opening on the building side 56 at one end and a second opening 58 at its opposite end, which openings are provided with an internal thread. The internal thread in the area of the first opening 56 forms a first load application means on the fastener 27 , The same internal thread in the area of the second opening 58 forms a second load application means on the fastener 27 ,

The retention area 53 extends radially beyond the insertion area and forms a plate-shaped pressure plate. There is a circular claw on the side of the pressure plate facing the thermal insulation layer 59 trained in the insulation layer 15 lets push in. That claw 59 increases the connection between the fastener 27 and the insulation layer surface. The claw 59 is formed by a ring area that is deliberately held flat. The flat design of the claw with obtuse-angled to right-angled edges prevents injuries to the surface of the insulation layer when the fastening element is screwed in and tightened 27 , For turning the fastener 27 there are, for example, four recesses in the restraint area 61 available. These recesses 61 are used to engage a screwing tool. As an alternative or in addition, the central opening in the plastic printing plate can have a hexagonal outline, for example 62 be trained. This makes it possible to use a conventional hexagon key as a setting tool.

The retention area 53 is entirely made of plastic. This material ensures more favorable thermal conductivities than metallic materials. However, this means the compressive strength and the tensile strength, as well as the fire safety of the connection between the fastening element 27 and threaded rod 25 , as is also sufficient between the protective layer and the fastening element, the load application means are formed on the stainless steel threaded tube.

Thanks to the heat transfer from the steel fastening screw to the stainless steel fastening element, and from this to the steel threaded rod, the heat flow is significantly impeded. The lower thermal conductivity of the stainless steel compared to the steel of the screw and threaded rod, as well as the smaller material cross section of the stainless steel pipe, as well as the precise adaptation of the insulation layer 15 around the attachment point 11 allow a significant reduction in the energy loss of the building envelope compared to conventional building envelopes with a protective layer. So that the heat transfer is as small as possible, there is a plastic layer between the outer fastening surface of the retention area and the threaded pipe end near this surface. This ensures a distance between the holding profile piece and the stainless steel tube, so that these metal parts do not touch and the end of the stainless steel tube does not come into contact with the cold outside air. In the area of this plastic layer, a three, four, or six-surface, or also a star-shaped receptacle for a setting tool can be easily formed.

In addition, a fine plastic layer, e.g. a Teflon layer on the thread flanks of the fastener be provided to heat transfer between the rod element and the fastening element, and between to reduce a fastening screw and the fastening element.

The assembly process of such building cladding is in the 5 shown. The 5 shows 7 Stages of assembly of the building cladding in a view and a vertical section through the building envelope 10 , These seven stages are with 5.1 to 5.7 designated.

5.1 shows the bare building 13 , The concrete wall shown here uninsulated could, for example, also be a thermally insulated or uninsulated brick wall, a foam concrete wall or a wooden structure, to name just a few possible constructions. On this building wall 13 becomes a thermal barrier coating 15 upset ( 5.2 ). The thermal insulation layer 15 is butt-laid from slabs or mats and can be built up in one or more layers with regard to the layer thickness. On the fully insulated wall 13 the fastening points are measured ( 5.3 ). At the attachment points 11 become holes through the thermal barrier coating 15 into the building wall 13 drilled.

Now there are threaded rods, for example with masonry dowels 23 , placed in the holes ( 5.4 ). First you can use the dowels 23 , then the threaded rods 25 and finally the fasteners 27 be transferred. However, the assembled fastening device can also be advantageous 20 as a whole (possibly dowels 23 , Threaded rod 25 and fastener 27 assembled). Instead of dowels 23 can for example also glue the threaded rod 25 inside the building 13 be provided.

When moving the fastening device, the threaded rod 25 screwed. After that, the fastener 27 by screwing in on the threaded rod 25 tightened. The retention area 53 is thus against the outer surface of the thermal barrier coating 15 pressed. This creates the insulation layer 15 mechanically attached.

In a next step ( 5.5 ) are holding profile pieces 29 to the second load application means of the fasteners 27 connected, ie screwed into the threaded tube from the outside with fastening screws. On the L-shaped holding profile pieces 29 become vertical support profiles 71 attached. These support profiles 71 can be special profiles of a facade system. It can be sheet metal profiles or extruded aluminum profiles. Wooden slats can also be used. For moving the support profiles 71 ( 5.6 ) become the holding profile pieces 29 vertically aligned and screwed in an aligned position. The support profiles 71 are now with the holding profile pieces 29 provisionally connected and adjusted so that the support profiles lie in a common plane. The adjusted support profiles 71 are definitely with the holding profile pieces 29 connected. The support profiles 71 be before installing the protective layer 73 with tie rods 31 on the building 13 suspended.

On the support profiles 71 in a final step ( 5.7 ) the protective layer 73 , for example in the form of cladding made of sheet metal, fiber cement or stone, attached to the support profiles.

Instead of vertical support profiles, it is also possible, for example, to connect, for example, vertically extending sheet metal drawstrings to the fastening elements. In such a case, the protective layer 73 can also be applied to horizontal or diagonal battens. The holding profile pieces 29 can be rotated in any direction.

Thanks to the support profiles that go through several fastening points 71 becomes a turn the fastener 27 around its axis 50 prevented. Therefore it is excluded that there are fasteners 27 to solve. For additional security, a grub screw could be screwed into the internal thread and screwed against the threaded rod end.

In summary it can be said that with a fastener 27 for attaching a plate 17 existing thermal insulation layer 15 on a building 13 a basis has been created to attach a ventilated facade to it. For this purpose, the fastening element has a first end for insertion into the thermal insulation layer 15 on one along a geometric axis 50 extending metal shaft 55 , Opposite the first end is to lie against the outer surface of the thermal barrier coating 15 a radial the insertion area 51 outstanding retention area 53 made of plastic. The fastener points to the metal shaft 55 a first load application means 56 for tying the first end of the fastener 27 on a building 13 on. In order to be able to attach the rear-ventilated facade to the fastener, it is on the metal shaft 55 a second load application means accessible from the second end 58 educated.

10

Building envelope, consisting of the supporting structure of the building 13 and the

building Clothing

11

fastening point

13

Buildings, e.g. building wall or floor slab

15

thermal barrier

17

thermal insulation board or mat, first layer

18

thermal insulation board or mat, second layer

19

Air space, rear ventilation of the protective layer 73

21

Fastening device consisting of at least one threaded rod 25 and

a fastener 27

23

Masonry dowels or other anchoring means

25

Rod element, especially threaded rod

26

first end of the metal shaft 55

27

fastener

28

second end of the metal shaft 55

29

Retaining profile piece

31

tie rods

33

upper fastening section of the tie rod 31

35

lower fastening section of the tie rod 31

37

Tie rod of the tie rod 31

41

Bore, especially elongated hole in the first leg 45 of

Retaining profile piece 29

43

tether, e.g. fixing screw

45

first leg of the holding profile piece 29

47

second, projecting leg of the holding profile piece 29

49

Elongated holes in the second leg 47 of the holding profile piece 29

50

Fastener axis 27 and the entire fastening device 20

51

Insertion area of the fastener 27

53

Retention area of the fastener 27

55

Metal shaft, e.g. Threaded pipe, especially made of stainless steel

56

first load application means of the fastener 27

57

Plastic pipe as a casing for the threaded pipe 55

58

second load application means of the fastener 27

59

claw

61

Recesses on the fastener 27

71

with several attachment points 11 connected supporting profiles, battens

73

protective layer or representation layer of the building Clothing

Claims (22)

Fastener ( 27 ) for fastening an insulation layer ( 15 ) and a ventilated protective layer hung in front of the insulation layer ( 73 ) on a building ( 13 ), with an axial metal shaft ( 55 ) for insertion from the outside into the insulation layer ( 15 ), on the metal shaft ( 55 ) a first load application means ( 56 ) accessible from the first end ( 26 ) of the metal shaft ( 55 ) for connecting the metal shaft ( 55 ) to one in the building ( 13 ) anchored rod element ( 25 ), and a second load application means ( 58 ) accessible from the second end ( 28 ) of the metal shaft ( 55 ) for connecting the protective layer ( 73 ) on the metal shaft ( 55 ), and with one on the metal shaft ( 55 ) molded plastic edge ( 53 ), which the metal shaft ( 55 ) as a retention area for retaining the insulation layer ( 15 ) protrudes radially. Fastening element according to claim 1, characterized in that the plastic edge ( 53 ) a plastic coating ( 57 ) of the metal shaft ( 55 ) is. Fastening element according to claim 1 or 2, characterized in that the metal shaft ( 55 ) is covered with plastic over its entire length, in particular is extrusion-coated. Fastening element according to one of claims 1 to 3, characterized in that the plastic edge ( 53 ) at the second end of the metal shaft ( 55 ) is trained. Fastening element according to one of claims 1 to 4, characterized in that the plane of the metal shaft ( 55 ) closer surface of the plastic edge ( 53 ) towards the second end ( 28 ) of the metal shaft ( 55 ) is spaced, and the metal shaft is arranged entirely on one side of this plane. Fastening element according to one of claims 1 to 5, characterized in that in the plastic edge ( 53 ) a tool holder ( 61 ) is designed for a setting tool. Fastening element according to claim 6, characterized in that the tool holder is a hexagonal opening which is coaxial to the metal shaft ( 55 ) is trained. Fastening element according to one of claims 1 to 7, characterized in that the first and the second load application means ( 56 . 58 ) are aligned axially. Fastening element according to one of claims 1 to 8, characterized in that the first load application means ( 56 ) is an internal thread. Fastening element according to one of claims 1 to 9, characterized in that the second load application means ( 58 ) is an internal thread. Fastening element according to one of claims 1 to 10, characterized in that the metal shaft ( 55 ) is made of stainless steel. Fastening element according to one of claims 1 to 11, characterized in that the metal shaft ( 55 ) is tubular. Fastening element according to claim 12, characterized in that the metal shaft ( 55 ) has a continuous internal thread with a constant diameter. Fastening element according to one of claims 1 to 13, characterized in that on the retention area ( 53 ) at least one claw ( 59 ) which is at a distance from the axis ( 50 ) extends in the axial direction. Fastening system for building cladding, - with a rod element ( 25 ) which bar element in a building to be clad ( 13 ) can be anchored - with one with the rod element ( 25 ) interacting fastener ( 27 ) according to one of claims 1 to 14 for fastening a thermal insulation layer ( 15 ) on a building ( 13 ). Fastening system according to claim 15, characterized by a connecting means ( 43 ) to interact with the second load application means ( 58 ) and for connecting a load to the fastening element ( 27 ). Fastening system according to claim 15 or 16, characterized in that the rod element ( 25 ) is a threaded rod. Fastening system according to one of claims 15 to 17, characterized by a self-drilling masonry dowel ( 23 ) with which the rod element ( 25 ) can be attached. Fastening system according to one of claims 15 to 18, characterized by short holding profile pieces ( 29 ), for fastening with the lanyard ( 43 ) on only one fastening element ( 27 ). Fastening system according to one of claims 15 to 19, characterized by long support profiles ( 71 ), which are attached to several fasteners ( 27 ) or holding profile pieces ( 29 ) can be attached. Fastening system according to one of claims 15 to 20, characterized in that a thermal insulation layer ( 15 ) of a selected layer thickness and the length of the bar elements ( 25 ) on the layer thickness of the thermal insulation layer ( 15 ) is coordinated. Building envelope with a supporting structure ( 13 ), one of the supporting structures ( 13 ) enveloping thermal insulation layer ( 15 ) and one with a space ( 19 ) in front of the thermal insulation layer ( 15 ) hung, ventilated protective layer ( 73 ), with one in the supporting structure ( 13 ) anchored rod element ( 25 ), which is in the insulation layer ( 15 ) extends into it, characterized by a fastening element ( 27 ) according to one of claims 1 to 14, which is attached to the rod element ( 25 ) is connected and with the plastic edge ( 53 ) on the thermal insulation layer ( 25 ) from the outside, and the fact that the protective layer ( 73 ) on the fastener ( 27 ) is connected.