DE20016475U1 - Cladding element - Google Patents

Description

Construction elements GmbH FJ Linzmeier
F 227 BE/hae

Cladding element

Description :

The invention relates to a cladding element for fastening to a substructure, in particular in interior construction, according to the preamble of claim 1.

Insulation boards for building purposes are known from DE 86 31 204 Ul, DE 88 04 611 Ul and DE 33 07 634 C2, which essentially consist of a rigid foam board with foamed-in support strips, whereby the support strip has a greater mechanical strength than the rigid foam board and serves to attach the insulation board to a substructure, whereby commercially available fastening means such as set screws can be used. The advantage of these known insulation boards is that they can be attached directly to the substructure, whereas with unproven

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Insulation panels are attached using counter battens, whereby the substructure must first be levelled in a separate operation, which increases the assembly effort. However, the known insulation panels described above only allow for thermal and acoustic insulation, whereas fire protection is often also required. The disadvantage of the known insulation panels described in the documents listed at the beginning is the fact that fire protection elements must be attached separately, which means that the production effort for, for example, an interior panel with fire protection is relatively high.

The invention is therefore based on the object of improving the known insulation board described at the beginning so that fire protection is also possible.

The object is achieved, starting from the known cladding element described at the outset according to the preamble of claim 1, by the characterizing features of claim 1.

The invention comprises the general technical teaching of designing the known insulation panels described above in multiple layers, with one layer serving for thermal and/or acoustic insulation, while another layer provides fire protection.

The cladding element according to the invention therefore has a fire protection board on the side of the insulation board facing away from the substructure, which consists for example of gypsum fibre, plasterboard or calcium silicate. The fire protection board is attached to the insulation board for example by gluing, but other fastening methods are also possible.

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types of transport are possible.

Furthermore, the cladding element according to the invention has at least one elongated support strip which is foamed or cast into the insulation board and has a greater mechanical strength than the insulation board. The support strip can consist, for example, of plywood strips, chipboard strips, fiber-reinforced plaster strips or plastic, but other material compositions of the support strip are also possible.

Preferably, the support strip is foamed or cast into the insulation board close to the surface and is flush with the surface of the insulation board. This offers the advantage that the fire protection board can be easily attached to the insulation board, for example by gluing, since the support strip does not protrude from the surface of the insulation board.

In an advantageous variant of the invention, a support strip is foamed or cast into each of two opposite side edges of the insulation board, whereby the support strips of adjacent cladding elements lie at least partially on top of each other when assembled in order to enable a connection of adjacent cladding elements at the joints. For this purpose, for example, a screw or a nail can be driven through the overlapping parts of the support strips into a rafter of the substructure located behind them. The fastening of adjacent cladding elements to each other and/or together to the substructure is particularly important for improving fire protection, since the high temperatures that occur in the event of a fire pose the risk of the cladding elements bulging and allowing combustion gases to pass through.

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allow combustion gases or hot air to pass through the joint.

In another variant of the invention, the cladding element forms a step fold with the fire protection panel on opposite side edges. To do this, the fire protection panel protrudes over the cladding element on one side edge, whereas the fire protection panel is indented on the opposite side edge so that the fire protection panel of the adjacent cladding element rests on this area. The step fold formed in this way makes it more difficult for adjacent cladding elements to bulge apart in the event of a fire. This effect can be further supported by the screw or nail connection of adjacent cladding elements described above. In this case, a fastening element, for example in the form of a screw or a nail, is driven through the two overlapping cladding elements in the area where the step fold overlaps and possibly into the rafters.

In the preferred embodiment, the support strips arranged on the side edges of the cladding element according to the invention are profiled on their outer sides, whereby the profiles of the support strips of adjacent cladding elements interlock when assembled. In this way, the above-described bulging of adjacent cladding elements at the joints is prevented even without separate fastening elements.

In a variant of the invention, the support strip is profiled on its side edges so that when foamed or cast in, there is a positive connection between the support strip and the insulation board. This is

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For example, this is advantageous if the support strip is not only used to attach the cladding element according to the invention to the substructure, but is also used to attach lamps or similar objects, since the support strip is then not subjected to compression but to tension in relation to the insulation board.

To further prevent adjacent cladding elements from buckling apart in the event of a fire, a variant of the invention provides that the side edges of the insulation board and/or the fire protection board that are opposite one another next to the support strip are profiled so that the profiles of adjacent cladding elements interlock.

The profiles of adjacent insulation boards, fire protection boards and/or support strips can, for example, form a tongue and groove combination or be designed as interlocking step folds.

Other variants of the invention are characterized in the subclaims or are explained in more detail below together with the description of the preferred embodiments with reference to the figures. They show:

Figure 1 shows a cladding element according to the invention in cross section,

Figure 2 shows a further embodiment according to the invention, in which the insulation board and the fire

protective plate form a step fold,

Figure 3 shows a further embodiment of a cladding element according to the invention, in which the side edges of the insulation board have a tongue and groove

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Figure 6

Figure 7

Figure 8

combination,

Figure 4 shows another embodiment of the invention, in which the side edges of the fire protection board form a tongue and groove combination and

Figure 5 shows a further embodiment of the invention in which the side edges of the fire protection board are profiled,

the cladding element from Figure 5 in a perspective view,

the assembly of the cladding elements according to the invention.Roof rafters,

an alternative embodiment of the invention with two layers of fire protection panels and

Figure 9 shows another cladding element according to the invention with integrated support strips.

The cladding element according to the invention shown in cross section in Figure 1 serves for thermal and acoustic interior insulation and also offers fire protection in accordance with DIN 4102 (F 30 B). The cladding element shown is screwed to the roof rafter 1, for example, during the interior construction of an attic, the cladding element being arranged at right angles to the roof rafter 1, as shown in Figure 7.

The cladding element according to the invention is designed in multiple layers and consists essentially of an insulating board made of polyurethane rigid foam or polystyrene rigid foam and a fire protection board 3 made of calcium silicate or a gypsum fibre board, the thickness of the insulating board 2 being between

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10 mm and 200 mm, while the fire protection panel 3 has a thickness between 5 mm and 50 mm. The dimensions of the insulation panel 2 are in the range between 500 x 500 mm and 2000 x 4000 mm.

The insulation board 2 is covered on both sides with an aluminium foil

4.1, 4.2, which serves as a vapor barrier. However, instead of aluminum foil, a glass fabric or a similar coating can also be used.

For mechanical stiffening of the insulation board 2 and for fastening the cladding element to the roof rafters 1, support strips 5.1-5.4 made of plywood strips are foamed into the insulation board 2.

The support strips 5.2, 5.3 are foamed into the insulation board 2 close to the surface on the side facing away from the roof rafter 1 and are flush with the surface of the insulation board 2, which facilitates the attachment of the aluminum foil 4.2 and the fire protection board 3. The support strips

5.2, 5.3 run essentially at right angles to the roof rafters 1 and serve to attach the cladding element to the roof rafters 1. For this purpose, for example, a screw can be driven through the cladding element and the support strips 5.2 or 5.3 into the roof rafters 1, whereby the screw is only shown schematically as a dashed line. Preferably, special screws are used here which only have a thread in the area of their free end and in the middle area, whereby the lower thread section engages in the roof rafters 1, while the middle thread section grips the support strips 5.2, 5.3. It is particularly advantageous here if the different thread sections also have different thread pitches. With this

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These screws, in combination with the insulation board, make it possible to align the cladding elements under the rafters. This means that the cladding elements do not need to be underlaid. In addition, these screws also enable the use of insulation materials in combination with support battens that cannot be subjected to pressure.

Such fastening screws preferably have a relatively large head in order to prevent the relatively soft fire protection panel 3 from being damaged when the screws are tightened. Instead of the screw connection described above, however, the cladding element can also be attached to the roof rafter 1 using nails or other types of fastening elements.

The support strips 5.1, 5.4, on the other hand, are foamed into the opposite side edges of the insulation board 2 and are not used to attach the cladding element to the roof rafters 1, but rather have the task of connecting adjacent cladding elements to one another at the joints in order to prevent adjacent cladding elements from buckling in the event of a fire. The support strips 5.1, 5.4 therefore protrude laterally from the side surface of the insulation board 2 and, when installed, engage in correspondingly shaped grooves 6.1, 6.2, so that a tongue and groove combination is created at the joints of adjacent cladding elements, which makes it difficult for adjacent cladding elements to buckle apart.

The connection of the adjacent cladding elements to each other can be further improved within the scope of the invention by inserting a screw, a nail or a similar fastening element at the joints through the overlapping support strips 5.1 and 5.4

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and possibly into the roof barriers 1.

The embodiment of a trim part according to the invention shown in Figure 2 largely corresponds to the embodiment described above and shown in Figure 1, so that the same reference numerals are used below and reference is made to the above description in order to avoid unnecessary repetition.

The special feature of this embodiment is essentially that the fire protection panel 3 is arranged laterally offset from the insulation panel 2, so that the insulation panel 2 and the fire protection panel 3 form a step fold at the joints of adjacent cladding parts. On the one hand, this advantageously makes it more difficult for the panels to bulge apart in the event of a fire, even without separate fastening elements at the joints of adjacent cladding elements. On the other hand, the step fold-shaped arrangement of the insulation panel and the fire protection panel 3 makes it more difficult for combustion gases or hot air to pass through at the joints of adjacent cladding elements.

The embodiment shown in Figure 3 largely corresponds to the embodiment described above and shown in Figure 2, so that the same reference numerals are used below and reference is made to the above description in order to avoid unnecessary repetition.

The special feature of this embodiment is essentially that no support strips are foamed into the opposite side edges of the insulation board.

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Rather, a groove 7 is formed on one side edge of the insulation board 2 and a correspondingly shaped tongue 8 is formed on the opposite side edge of the insulation board 2, so that adjacent cladding elements form a tongue-and-groove combination at the joints of the insulation board 2 when assembled. This advantageously makes it more difficult for adjacent cladding elements to bulge apart at the joints in the event of a fire.

The embodiment shown in Figure 4 largely corresponds to the embodiment described above and shown in Figure 3, so that the same reference numerals are used below and reference is made to the description of Figure 3 to avoid unnecessary repetition.

The special feature of this embodiment essentially consists in the fact that a tongue 9 is formed on the side edges of the fire protection panel 3 on one side and a correspondingly shaped groove 10 on the other side, so that at the joints of adjacent cladding elements in the assembled state in the area of the fire protection panel 3 a tongue and groove combination is created which prevents adjacent cladding elements from bulging apart.

The embodiment of a trim part according to the invention shown in Figures 5 and 6 largely corresponds to the embodiment described above and shown in Figure 1, so that the same reference numerals are used below and reference is made to the above description in order to avoid unnecessary repetition.

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The special feature of this embodiment is essentially that the fire protection panel 3 forms a step fold on opposite side edges in the area where adjacent cladding elements meet. To this end, the fire protection panel 3 protrudes laterally on one side edge, whereas the fire protection panel 3 is laterally indented on the opposite side edge. The interlocking of the profiled side edges of the fire protection panel 3 thus prevents adjacent cladding elements from bulging apart in the event of a fire. It is particularly advantageous here that the joint at the points where adjacent fire protection panels 3 meet is covered on the inside by a part of the fire protection panels 3, which makes it more difficult for combustion gases to penetrate.

Finally, Figure 7 shows the assembly of the cladding elements according to the invention during the interior construction of an attic.

The embodiment of a cladding element according to the invention shown in Figure 8 largely corresponds to the embodiment described above and shown in Figure 3, so that the same reference numerals are used below and, in order to avoid repetition, reference is made to the above description of Figure 3.

The special feature of the embodiment according to Figure 8 is that the fire protection panels 3.1, 3.2 butt against each other, with another fire protection panel 3.3 being arranged above the joint between the two fire protection panels 3.1, 3.2, which covers the joint and thus improves fire protection. The fire protection panel 3.3 in turn butts against a fire protection panel 3.4.

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The fire protection board is therefore constructed in two layers, with one layer consisting of the two fire protection boards 3.1, 3.3, while the other layer is constructed of the fire protection boards 3.3, 3.4.

It is of course also possible to arrange more than two layers of fire protection panels on top of each other to further improve fire protection.

The individual layers of fire protection boards 3.1, 3.2, 3.3, 3.4 can be attached to each other by gluing, for example. However, it is also possible to screw or nail the outer layer of fire protection boards 3.3, 3.4 to the inner layer of fire protection boards 3.1, 3.2.

The embodiment of a cladding element according to the invention shown in Figure 9 largely corresponds to the embodiment described above and shown in Figure 5, so that the same reference numerals are used below and, in order to avoid repetition, reference is made to the above description of Figure 5.

The special feature of the embodiment according to Figure 9 is that the support strips 5.1, 5.2 are foamed into the side of the insulation board 2 facing the fire protection board 3.

The invention is not limited to the embodiments described above. Rather, a large number of variants and modifications are conceivable that make use of the basic principle of the invention and therefore also fall within the scope of protection.

Claims (16)

1. Cladding element for fastening to a substructure ( 1 ), in particular in interior fittings, with
a foamed or cast insulation board ( 2 ),
at least one elongated support strip ( 5.1-5.4 ) running essentially parallel to the insulation board ( 2 ), which is foamed or cast into the insulation board ( 2 ) and has a greater mechanical strength than the insulation board ( 2 ),
characterized ,
that a fire protection plate ( 3 ) is attached to the insulation plate ( 2 ) on the side facing away from the substructure ( 1 ). 2. Cladding element according to claim 1, characterized in that the support strip ( 5.1-5.4 ) is foamed or cast into the insulation board ( 2 ) close to the surface on the side facing the fire protection board ( 3 ) or on the side facing away from the fire protection board ( 3 ) and is essentially flush with the surface of the insulation board ( 2 ). 3. Cladding element according to claim 1 or 2, characterized in that a support strip ( 5.1-5.4 ) is foamed or cast into two opposite side edges of the insulation panel ( 2 ), the support strips ( 5.1-5.4 ) of adjacent cladding elements lying at least partially on top of one another in the assembled state in order to enable adjacent cladding elements to be connected to one another. 4. Cladding element according to claim 3, characterized in that the support strips ( 5.1-5.4 ) arranged on the side edges are profiled on their outer sides, the profiles of the support strips ( 5.1-5.4 ) of adjacent cladding elements interlocking in the assembled state. 5. Cladding element according to one of the preceding claims, characterized in that the support strip (5.1-5.4) consists of plywood, chipboard, fiber-reinforced plaster or plastic. 6. Cladding element according to one of the preceding claims, characterized in that the support strip (5.1-5.4) is profiled on its side edges so that in the foamed or cast state there is a positive connection between the support strip ( 5.1-5.4 ) and the insulation board ( 2 ). 7. Cladding element according to one of the preceding claims, characterized in that the side edges of the insulation board ( 2 ) and/or the fire protection board ( 3 ) lying opposite one another next to the support strip ( 5.1-5.4 ) are profiled so that the profiles of adjacent cladding elements engage with one another. 8. Cladding element according to one of the preceding claims, characterized in that the profiles of adjacent insulation panels ( 2 ), fire protection panels ( 3 ) and/or support strips ( 5.1-5.4 ) form a tongue and groove combination. 9. Cladding element according to one of the preceding claims, characterized in that the profiles of adjacent insulation panels ( 2 ), fire protection panels ( 3 ) and/or support strips ( 5.1-5.4 ) are interlocking step folds. 10. Cladding element according to claim 9, characterized in that the laterally opposite side edges of the fire protection panel ( 3 ) are profiled so that the side edges of adjacent fire protection panels ( 3 ) form a step fold, wherein the external joint at the joints of adjacent fire protection panels ( 3 ) is covered on the inside by a part of the fire protection panel ( 3 ). 11. Cladding element according to one of the preceding claims, characterized in that the insulating panel ( 2 ) is coated on one or both sides with glass fabric or aluminum foil. 12. Cladding element according to one of the preceding claims, characterized in that the insulation panel ( 2 ) consists of polyurethane rigid foam, EPS rigid foam, XPS rigid foam, mineral fiber or wood fiber. 13. Cladding element according to one of the preceding claims, characterized in that the fire protection panel ( 3 ) consists of gypsum fiber, plasterboard or calcium silicate. 14. Cladding element according to at least one of the preceding claims, characterized in that several layers of fire protection panels ( 3.1 , 3.2 , 3.3 , 3.4 ) are arranged one above the other. 15. Cladding element according to claim 14, characterized in that the fire protection panels ( 3.1-3.4 ) of adjacent layers are arranged offset from one another, so that the fire protection panels ( 3.1 , 3.2 ) of one layer cover the butt joints between the fire protection panels ( 3.3 , 3.4 ) of the other layer. 16. Cladding element according to claim 14 or 15, characterized in that the fire protection panels ( 3.1-3.4 ) of adjacent layers are glued, screwed or nailed together.