SK131296A3 - Board insulating element made from mineral wool - Google Patents

Abstract

A board-like insulating element of mineral (esp. glass) wool has (a) a main section (2) with fibres (4) parallel to the board plane (E); and (b) at least one adjoining edge section (6) with fibres (8) perpendicular to the board plane (E). Also claimed are an element which forms an intermediate product for prodn. of the above insulating element, and a process for prodn. of the above insulating element from the above intermediate product.

Description

Plate-like mineral wool insulating element

Technical field

The present invention relates to a plate-like mineral wool insulating element, in particular glass wool. The invention furthermore relates to a plate-like mineral wool insulating element, in particular glass wool, as an intermediate for the production of the aforementioned insulating element. Finally, the invention relates to a method for producing the first insulating element from the latter intermediate.

BACKGROUND OF THE INVENTION

Mineral wool insulating elements are known in a variety of embodiments for a variety of applications. They are used due to their high resistance to fire and their thermal and noise insulating properties, for example in the construction of buildings, such as stiffeners for insulation of steep roofs, as insulating facade boards for external wall insulation, as insulating felt, acoustically insulating boards, partition boards and similar devices for insulating the interior, or as impact sound insulation boards, as dry screed boards and so on, for laying on floors.

The invention primarily relates to the latter kind of insulating elements, namely plate-like insulating elements, which are used as impact sound insulation boards or dry screed boards.

In such conventional insulating elements, the mineral wool fibers run substantially parallel to the plane of the slab and are highly densified. These mineral wool fiber boards are usually laminated to a support plate, such as a chipboard, to increase the compressive strength.

-2doska. However, insulating elements with such a design have been shown to be very sensitive to local pressure overloads in their peripheral areas, such as occur, for example, in heavily busy passage areas such as entrance doors, passage doors, stairway entrances and exits, by replacing the top lining on the insulating element, for example by replacing the carpet with the tiles, load cases with work loads> = 150 kg / m ² , as described in DIN 1055, heavy objects with work loads> = 250 kg / m ² , such as cabinets, decorations and the like, or under point loads, human stress, and so on. This leads to an undesirable drop in the edge region of the panels and, due to the resulting difference in heights of adjacent panels of insulating elements, to create unsafe places with cavities or ridges, to reduce aesthetic impression, or at least to greatly reduce comfort due to springing in the edge region. In addition, it is possible that such unevennesses have a negative effect on the placement of objects on the boards of insulating elements. In addition, a decrease in the edge area also results in a disadvantageous local reduction in the insulating properties for the impact sound of the insulating element used. Since the known insulating elements are formed so strongly densified that they resist the abovementioned mechanical stresses, however, particularly accentuated, undesirable sound bridges and insulating elements are not sufficient to meet the requirements for airborne and / or impact sound insulation.

SUMMARY OF THE INVENTION The object of the invention is therefore to provide a simple and effective insulating element of the above-mentioned type, with which both the falling area or edge areas, depending on the local pressure load, can be prevented and at the same time highly effective insulation of impact sound and airborne sound can be realized.

3. Summary of the Invention

This object is achieved by a plate-like insulating element according to the invention with the features of claim 1. Such an insulating element for which other suitable mineral wool materials, in particular according to DIN 18165, such as mineral wool and other fibrous insulating materials, may find use in addition to glass wool and like materials, in the simplest embodiment, includes a main section having a substantially parallel to the fiber plane relative to the plane of the plate, and at least one edge section joining the main section having a substantially vertical arrangement of fibers relative to the plane of the plate. For the purposes of the invention, the edge section is to be understood as the region of the board bordering at least one free side, or even only a partial section thereof, of the insulating element. Typically, said edge section extends over the total length of at least one side of the plate; however, it can also be considered on all sides.

The insulating element according to the invention combines in a suitable manner the high mechanical strength in the critical edge region of the board, due to the perpendicular alignment of the fibers of the edge section, with yet highly effective insulation of impact and airborne sound. and springing without adversely affecting the insulating properties for impact sound and airborne sound. The dynamic stiffness of the insulating element, especially the edge section, is always chosen such that no sound bridges are formed. Measurements of sound protection according to DIN 4109, component testing, indicate an improvement rate of> 26 dB per standardized slab (reinforced concrete). In the case of a standardized board, the degree of protection against impact sound is achieved

Thus, local loads can create hollow points in the marginal region of the plates,

-4> = 10dB. Therefore, the insulating element according to the invention is easier to manufacture and low cost. It can be particularly advantageously used both as a dry screed element and for laying on a floating screed.

According to a further aspect of the present invention, a suitable slab-like mineral wool insulation element, in particular glass wool, is to be provided as an intermediate for the production of the insulation element according to claim 1.

This object is solved by a plate-like insulating element according to the invention of mineral wool, in particular mineral wool according to DIN 18165, such as glass wool, mineral wool, and other fibrous insulating materials and similar materials as intermediates for producing the insulating element according to claim 1, Such an intermediate insulating element comprises a main section relative to the plane of the board substantially parallel to the fiber arrangement, and at least one dividing line extending in the main section at a distance to the edge of the insulating element and relative to the plane of the board substantially perpendicular, wherein the distance corresponds at least to the thickness of the insulating element, and the region between the separating joint and the edge of the insulating element or the region between the two separating joints defines a separable section. The separating joint can in principle be formed by any working method suitable for the material in question. For the purposes of the invention, the corresponding perforation is also to be understood as a separating joint.

This intermediate insulating element provides the particular advantage that it can first be used as a conventional insulating element, i.e. without marginal reinforcement, and, on the other hand, can be functionally transformed into the insulating element according to claim 1 as required. the edge section considered, which in the initial state constitutes only a continuation of the main section and therefore does not provide any reinforcing effect,

The separation joint and rotated 90 degrees in turn by fitting onto the resulting partition, thereby providing an insulating element according to claim 1. Further, the attachment of a separate edge section to the main section remaining in the separation process is described in more detail. For example, a simple knife or a similar tool serves as a separating tool. The separating bar preferably functions as a guide during the separation. In a corresponding embodiment of the separating joint, like a perforation, the edge section can also be separated by hand, the separating joint or perforation expediently acting as a kind of desired fracture point. On the other hand, for the transport of the insulating element, the edge section is firmly and permanently connected to the main section and thus also contributes to the small space requirement of larger insulating boards folded in one package. Instead of or in addition to the above-described, separable formed edge section, one or more separate, high-strength, standing fiber mineral wool edge sections may be provided in the presence of large individual loads, the respective dimensions of these edge sections being particularly adapted to the board. mineral wool used as the main section.

In both of the above-mentioned insulating elements according to the invention, it has proven advantageous that the main section and the edge section of the respective insulating element are made of the same mineral wool material. In this way, production costs can be greatly reduced. In connection with this embodiment, it has further proven favorable that the mineral wool material of the main section and the edge section have a density in the range of about 40 to 100 kg / m ³ . In particular, the density is about 80 kg / m ³ . This density range provides both the required mechanical strength of the marginal section and the desirable properties of the entire impact sound insulation element when using glass wool. Depending on

However, the values used may deviate from the mineral wool material used and the operating load taken into account.

As a further preferred feature of the embodiment, it is contemplated according to the invention that the main section and the edge section of the insulating element can be made of different mineral wool materials. By this measure, the mechanical properties, in particular the edge section of the insulating board, and its properties for impact sound insulation and airborne sound can be appropriately handled according to the requirements. In connection with this variant, it has also proven advantageous that the mineral wool material of the main section has a density in the range of about 40 to 100 kg / m ³ , and the edge section a density in the range of about 25 to 100 kg / m ³ . Again, this density, especially when using glass wool, leads both to the favorable mechanical properties of the edge section and to the good properties of the entire insulating element for insulating impact sound and airborne sound. However, depending on the mineral wool material used and the service load to be taken, these values may deviate.

According to a further advantageous feature of the embodiment of the invention, connecting means are provided between the main section and the edge section. These fasteners can be, for example, a suitable adhesive, adhesive film, mechanical fasteners, o fusion bonded adjacent mineral wool materials of the main and edge sections, or as in the intermediate insulating element according to claim 2, continuation of the material of the main section into the edge section. Said fasteners can be considered already in the workshop on the insulating board, for example in the intermediate insulating element according to claim 2, a tightening adhesive strip, located on the side of the edge strip facing the plane of the board, or applied only in a later working step

Relative to the plane of the board, the substantially perpendicular fiber arrangement.

For this purpose, it has proved expedient that the insulating element according to the invention is somehow connected to the carrier plate as a base element. The connection is usually formed by laminating the insulating element to the support plate. By means of the carrier plate, the compressive loads can be transmitted to the insulating element over a large area and undesirable point loads can be prevented. Above this, a suitable surface is provided for the laying of floor coverings, decorative surfaces and the like.

According to the invention, in the case of the insulating element according to claim 1, connecting means are considered both between the support plate and the main section, as well as between the support plate and the edge section in order to form a one-piece insulating element ready to be laid. With regard to the intermediate insulating element according to claim 2, on the other hand, it has proved to be advantageous that the connecting means are considered between the carrier plate and the main section, but not between the carrier plate and the edge section. As a result, the edge section can be easily released from the main section by separation on the separating joint, as already mentioned above, and thus applied to the emerging dividing surface of the main section so that the fiber arrangement of the edge section extends substantially perpendicularly to the plane of the insulating element board and thereby in the same orientation. against the carrier plate. The abovementioned connection means, in particular suitable adhesives, adhesive films, mechanical fasteners and the like, form a large-area permanent connection between the insulating element and the support plate.

The carrier board is in particular agglomerated wood board, cement-bonded agglomerated wood board, particle board, cement-bonded particle board, OSB board (non-oriented particle board), laminated wood board, gypsum board, gypsum board, HDF board ( high

The melanin and the like board, i.e. the decorative layer, is a densified fiber board) or an MDF board (medium densified fiber board) or the like. These types of boards have been shown to be favorable for the application.

Another preferred embodiment provides that the carrier plate is provided with at least one decorative layer. As a decorative layer can find the use of materials made of solid wood, veneer, plastic, paper materials. On the underside of the support side of the support plate facing away from the particular recoil in question. As a result of these measures, a particularly simple and inexpensive high-quality, wear-resistant and aesthetically appealing surface can be prepared on a small-scale base material of the carrier plate, such as the above-described particle board, with low material usage. The decorative layer preferably has a structured surface. In this way, wood imitations or other decorative elements can be made.

In order to prevent damage to the decorative layer, it is provided with at least one protective layer according to the invention. For example, a protective layer of melanin, in particular corundum / melanin, or a similar material may serve as the protective layer. However, within the meaning of the invention, the term "protective layer" is to be understood as meaning also protective foils or the like which can be removed from the decorative layer of the carrier plate.

Since the insulating element according to the invention is usually limited for manufacturing reasons and for easier handling in its dimensions, a groove and tongue are provided on the carrier plate, so that large-area insulating elements according to the invention can be formed in a simple and efficient manner floor coverings. It has proven particularly advantageous that the groove and / or tongue are additionally provided with impregnation at the edges. This prevents the ingress of liquids that occurs during cleaning or inattentive spills

9a, by contamination, to the frontal contact area of the adjacent support plates, and thereby to form a source in the region of the edges. Especially when using moisture-sensitive particle boards as carrier plates, the strength, durability and life of the carrier plate at the contact areas can thus be increased. Thus, undesirable moisture build-up under the carrier plate caused by the above influences can be prevented.

In this regard, it has proved to be very positive that the tongue is provided with a sizing joint and / or a groove with a sizing facet. In fact, by applying a suitable adhesive to the tongue and / or the bottom wall of the groove, an additional sealing effect can be achieved on the contact area of the adjacent supporting plates or insulating elements by means of the sizing joint and the sizing bevel. This also implies the aforementioned advantages.

Another advantageous feature of the embodiment of the invention provides that the insulating element comprises at least one additional insulating element arranged on one side of the insulating element. Accordingly, this additional insulating element can be fixed both on the upper side, i.e. on the side of the insulating element later facing the interior of the building, and on the lower side, i.e. on the side facing the floor on which the insulating element is laid. Since the insulating element according to the invention is provided with a carrier plate, it is preferred that at least one additional insulating element is arranged between the carrier plate and the insulating element, and / or on the side of the insulating element facing away from the carrier plate. In particular, a mineral wool board, in particular a mineral wool board according to DIN 18165 and other insulating material according to DIN 18164, and / or a foam board, and / or corrugated board, and / or dry embankment, and / or foil or similar material. Certain can be realized by means of an additional insulating element

In addition to the insulating properties of the insulating element, such as a foam board, as a rule, it is not sufficient to meet the requirements for impact sound insulation, the insulating element according to the invention must be carefully adapted to the additional element used with its main and minor sections.

In relation to the location of the complementary element described above, it is preferable that the edge section, with its substantially perpendicular relative to the plane of the insulating element plate extending through the fiber arrangement extends over the overall height of the main section layer and the at least one additional insulating element. This is particularly recommended if, due to its strength properties, the supplementary insulating element, like the peripheral regions described above, would decrease due to the compressive load in the peripheral region. On the other hand, since the supplementary insulating element is so stable that, at the rated loads which form the basis of the entire insulating element, there is no edge drop on the supplementary insulating element, this embodiment can optionally be dispensed with.

According to a further aspect of the invention, a method for producing an insulating element according to claim 1 from a suitable intermediate is to be produced.

This object is solved according to the invention by a method for producing an insulating element according to claim 1 from an intermediate according to claim 2 or 10, the method having the features of claim 22.

Accordingly, the method of the invention comprises the following steps: separating the edge section located between the dividing line in the main section and the edge of the insulating element, on the dividing line; arranging a separate edge section on the insulating element such that the fiber section of the edge section extends substantially perpendicular to the plane of the plate; and fixing the separate edge section on the separating surface of the remaining main section, and / or on the support plate.

The process according to the invention is of a technical nature

It is very simple and feasible without expensive auxiliary means, and provides as a result the insulating element according to the invention according to claim 1, with the advantages described above. Instead of a separable edge section, a separate edge section can also be generally used, which can be arranged and fixed in an analogous manner.

BRIEF DESCRIPTION OF THE DRAWINGS

Advantageous embodiments, further features and details and advantages of the insulating element of the invention and the method of the invention are further described with reference to the accompanying drawings, which show in FIG. 1 shows a schematic side view of a first embodiment of an insulating element according to the invention, FIG. 2 is a schematic side view of a second embodiment of an insulating element according to the invention; FIG. 3 shows a schematic side view of a third embodiment of an insulating element according to the invention, FIG. 4 is a schematic side view of a fourth embodiment of an insulating element according to the invention; FIG. 5 is a schematic side view of a fifth embodiment of an insulating element according to the invention; 6 shows a schematic side view of a sixth embodiment of an insulating element according to the invention, FIG. 7 is a schematic, enlarged view of a special groove / tongue embodiment of a carrier plate of an insulating element according to the invention, and FIG. 8 is a schematic plan view of a plurality of insulating elements according to the invention arranged in the same way.

DETAILED DESCRIPTION OF THE INVENTION

In the description and figures, unless further distinction is needed, continuously used to prevent repetition of the same components of the insulating element according to the invention are the same

-12relation marks.

Fig. 1 shows a schematic side view of a first embodiment of an insulating element according to the invention. As is well known in the drawing, the insulating element formed of mineral wool or mineral wool fibers comprises a plate-shaped main section 2, with a relatively parallel running arrangement of fibers, which is indicated by horizontal lines and reference numeral 4, relative to the plane E of the plate. The following description takes into account that the mineral wool used is glass wool, but likewise other suitable fibrous insulating materials such as mineral wool or a combination of glass wool and mineral wool or the like can be used. The insulating element further comprises an edge section 6 connecting to the main section 2, which has a fiber arrangement substantially perpendicular to the plane E of the board. In this case, the main section 2 and the edge section E are made of different fiberglass boards, the glass wool board of the main section 2 having a density in the range of approximately 40 to 100 kg / m ³ , and the glass wool board of the edge section E density. in the range of 25 to 100 kg / m ³ . Similarly, glass wool panels of the same density can be used for the parts 2 and E of the insulating element. Furthermore, the glass wool panels can be provided with a thin laminated fleece, cardboard or foil. This lamination is not shown in the drawing. The main section 2 and the edge section E are fixed together by means of a suitable adhesive 14. The edge section E shown in FIG. 1 can also be designed such that the thin plate is folded several times in the manner of a accordion from the plane of the plate, essentially by the fiber arrangement, so that the fiber arrangement E.

The insulating element of FIG. 1 is hereinafter referred to as base element I.

glass wool with a relatively parallel running is formed as described above

FIG. 2 shows a schematic side view of a second embodiment of an insulating element according to the invention. This plate-like insulating element, made in this example also from glass wool or glass wool fibers, is particularly useful as an intermediate for the production according to FIG. 1, comprises a main fiber section 2 running substantially parallel to one another. In this main insulating element with the arrangement 4 of the plane E of the plate 2 of the section 2, at a distance A to the edge of the insulating element, a separating joint 10 is placed, which extends relative to the plane E of the plate substantially perpendicular. The aforementioned distance A is chosen such that it corresponds at least to the thickness E of the insulating element. The area between the dividing line 10 and the open end of the insulating element defines a separable edge section E. The main section 2 and the edge section E thus consist of the same fiberglass material, with the same fiber arrangement, and also have the same density. The density is in particular about 80 kg / m ³ . Since the edge section E in the structure just described is merely a continuation of the main section bounded from the main section 2 by the dividing line 10. the main section 2 and the edge section E have substantially the same mechanical properties. Thus, the edge section E does not cause any edge reinforcement in this state.

As further shown in FIG. 2, the at least one additional dividing line 10 may be located at a distance A from the separating joint 10, so that the area between the dividing lines 10 and 10 defines an additional separable edge section 6. The separation A is again chosen to correspond to at least the thickness D of the insulating element. . Naturally, the region of the actual main section 2, as indicated by the reference numeral 2 in the drawing, also varies during the preparation or use of the additional separating joint 10. The separating joints 10 and 10 do not necessarily lie on the same side of the board.

Such as glass wool material for example

14 of the embodiment of FIG. 2 is used in the present case. URSA (R) - TEP dry screed board. The most important technical data of this element for dry screed can be seen from the following table 1.

Table 1

URSA (R) - TEP dry screed board

Highly thickened impact sound insulation board from glass wool

Non-combustible according to DIN 4102

Thermal conductivity group 035

Building material class A2

Stiffness group according to DIN 18165, part 2, from 10, for example 20, 30, 40

Type of use TC according to DIN 18665

Standardized fabric thicknesses under load: 20 mm, 25 mm and 30 mm

The invention is not naturally limited to URSA (R) dry screed boards TEP, the case used and other suitable mineral wool boards also used with respect to the operating load.

The insulating element shown in FIG. 2, as mentioned above, can be used as a conventional insulating element without edge reinforcement, as well as as an intermediate for producing the insulating element of FIG. 1. In order to make the insulating element of FIG. 1, provided with a reinforced edge region, first the edge section 6 between the dividing line 10 in the main section 2 and the edge of the insulating element is separated on the dividing line 10. For this purpose, a dividing tool, e.g. a knife or other similar tool, force moves through to use Can be by

15 dividing joint 10 and cut through the glass wool board, the dividing joint 10 serving at the same time preferably as a guide for achieving a straight cut. The separated edge section 6 is now arranged on the resulting separating surface of the main section 2 of the insulating element rotated 90 degrees so that the fiber arrangement B of the edge section B extends relative to the plane E of the plate substantially perpendicularly and fixed by applying a suitable fastener such as such as glue. Instead of separately applied adhesive, a pre-assembled fastener can also be used, for example a separating adhesive strip located on the side of the edge strip facing the plane of the plate, with which the edge strip can be mounted on the separating surface of the main As a result of this method of operation, the insulating element according to FIG.

If a wider reinforced edge region of the insulating element is to be produced than can be realized by the edge section B itself, an additional edge section B 'can be used. The desired method of operation is in principle analogous to that described above. An insulating element is then formed in which the edge sections 6 and 6 are arranged side by side with the standing fiber. The edge sections B and B are preferably joined together. In addition, it is naturally also possible to use separate standing sections with a standing fiber.

The insulating element of FIG. 2 is hereinafter referred to as the base element II.

Fig. 3 shows a schematic side view of a third embodiment of an insulating element according to the invention, in a typical situation of use, wherein the insulating element is laid on the floor 36 adjoining the wall BB- The insulating element is based on the base element X already explained in detail with reference to FIG. construction, but is on the top

-16 sides provided with a backplate carrier plate 12. The base element X is laminated to this carrier plate 12, so that a firm connection is established between the two parts. A chipboard is used in the present case as the carrier plate 12. However, cement-bonded particle board, laminated wood, gypsum board, gypsum fiber board, HDF board or MDF board, OSB board, or other agglomerated wood board, among them also cement-bonded agglomerated wood board and similar boards are also suitable. The carrier plate 12 is provided with a decorative plate 16 having a structured surface and a protective layer 18. Suitable decorative layers include, but are not limited to, solid wood, veneer, plastics, melanin papers and the like. The protective layer 18 is, for example, a coating layer of melanin, in particular corundum / melanin, or the like. A removable protective film 20 is also provided on the carrier plate for the transport of the insulating elements.

The carrier plate 12 is further provided with a groove 22 and a tongue 24 which allow easy connection of several insulating elements arranged in the same way in the same way. With the location of the insulating element on the floor 36 shown in FIG. 2, for this purpose, there is a separate edge insulation strip 34 made of glass wool, which is known per se, between the wall 38 and the end face of the insulating element facing the wall 38. In FIG.

Fig. 4 shows a schematic side view of a fourth embodiment of an insulating element according to the invention. This variant serves as an intermediate for the production of the insulating element according to FIG. 3. The construction of the carrier plate 12 used corresponds to that of FIG. 3, but in the present case the base element II of FIG. 2 laminated to the carrier plate 12. The particularity of the insulating element according to FIG. 4 is that the connecting elements 14 are considered only between the support plate 12 and the main section 2 of the base element Z1, but not between

The bearing plate 12 and the edge section 6 or edge sections 6 and 6, respectively, located between the dividing line 10 and 10, respectively, and the free side of the insulating element or base element II. Therefore, the edge section 6 can be easily released by separation on the separating joint 10 and analogous to the foregoing in connection with FIG. In order to improve strength, naturally, a fixed connection between the edge section 8 and the support plate 12 should then naturally also be provided. The additional securing can be carried out by means of wire pins (not shown in the drawing). As a result, the insulating element as shown in FIG. Third

Fig. 5 shows a schematic side view of a fifth embodiment of an insulating element according to the invention. In this variant, an additional insulating element 32 is provided on the underside of the main section 2, i.e. on the side of the insulating element facing away from the carrier plate 12. This insulating element 32 is in this case a glass wool plate. Since the strength of the fiberglass plate used is, with respect to the impact sound insulation properties to be achieved, such that it cannot prevent the edge from dropping at a predetermined operating load by itself, the edge section 6 is dimensioned so that it extends across the entire height H of the layer formed by the main section 2 of the insulating element and the supplementary insulating element 32, thereby providing the desired edge reinforcement.

In FIG. 6, a sixth embodiment of an insulating element according to the invention is shown in a schematic side view. In this modification, a sheet of extruded foam, polyethylene foam or the like is provided between the carrier plate 12 and the insulating layer formed between the main section 2 and the edge section 6 as an additional insulating element 32. Because the board

When the foam is suitably selected, the foam has sufficient strength to prevent its own edge region from dropping, unlike the embodiment of FIG. 5, the edge section ' extends over the overall height H of the layer formed by the main section 2 of the insulating element and the supplementary insulating element 32. For this reason, the supplementary insulating element 32 may in principle also be arranged on the underside of the insulating element. of the support surface 12, and extend over the total floor area.

Corrugated boards and / or foils and / or dry embankments or the like can also be used as an additional insulating element 32 in addition to the components mentioned above.

The edge section 8 or 6 'according to the embodiment according to FIG. 1 to FIG. 6, it can generally consist of highly densified or less densified mineral wool fibers, depending on the particular load case.

Fig. 7 is a schematic, enlarged view of a special groove-tongue embodiment of a bearing surface of an insulating element according to the invention, as used, for example, in the insulating elements shown in FIG. 3 to FIG. 6. As shown in the drawing in dotted lines, the groove 22 and tongue 24 of the bearing surface 12 are provided with impregnation 26. This prevents the ingress of liquids occurring during cleaning work or inattentive spillage and dirt into the front side of the contact area lying next to each other. carrier plates. As further evident from the drawing, the impregnation can extend to the front side of the carrier plate 12.

In addition, the groove 22 of the support plate 12 is provided with a sizing bevel 28 and a tongue 24 with a sizing joint 30. The sizing joint 30 is formed on the upper side of the tongue 24 at the transition from the tongue 24 to the front side of the support plate 12.

The sizing joint can also be formed exclusively or additionally on the front side of the carrier plate 12. The sizing bevel 28, on the other hand, is shaped like a conventional veneer. By applying a suitable adhesive or sealant, for example a white PVAc or similar material, to the upper side of the tongue 26 and / or the bottom wall of the groove 22, it is possible to achieve by means of the sizing bevel 28 and sizing joint 30. elements, sealing effect.

Suitable dimensions of the groove-tongue embodiment of the carrier plate according to the invention shown in FIG. 7 can be seen from the following Table 2.

Table 2

entry

Oŕ d

u v

w x

y z

dimension

87.5 ° or 28 mm mm mm mm mm 10 mm 7.5 mm

The dimensions given in the table below are to be understood as examples only, according to the embodiment of the insulating element according to the invention, they can naturally vary considerably.

Fig. 8 shows a schematic plan view of a plurality of insulating elements P according to the invention arranged in the same way and arranged in the same way on the floor 36 of the space bounded by the walls 38, floating, i.e. they are connected together only in the groove and tongue area. The insulation elements used shall be:

The element P loaded by the legs 44 may, for example, be the plate-like insulating elements according to FIG. 3 and 4. As is well known in the drawing, the edges of the insulating element P, which border the walls 38 and the door opening 40 and consequently are usually subjected to a higher load, are provided with reinforced edge sections 6, corresponding to the insulating element of FIG. 3, while the remaining less loaded insulating elements P were left in the intermediate stage illustrated in FIG. 4. The edge sections 6 are shown in FIG. 8 hatched.

FIG. 8, a further example of an insulating arrangement arranged in a corner area of a room, by the box 42, can be further known. The box 42 with its boxes is indicated by a dashed line in the drawing.

The insulating element p supporting the housing 42 has a circumferentially reinforced edge section 6 circumferentially. In addition, one or more additional reinforced sections with perpendicularly extending fibers may be provided in addition to the edge section 6 of the insulating element P according to the invention to accommodate higher loads outside the edge area of the insulating element which substantially correspond to the edge section 6. Such a thickened section is shown in FIG. 8, indicated by 46.

According to the invention, it is not absolutely necessary for the transition from the main section 2 to the edge section 6, when viewed in the plan view, to take place via a straight dividing line or dividing surface; the main section 2 and the edge section 6 may be joined together or joined together by means of toothed or corrugated or similarly shaped side edges. A groove-tongue connection is also conceivable between the main section 2 and the edge section 6. These embodiments are not shown in the figures.

Since the insulating element according to the invention has been described with regard to its use as a sound insulation board or a dry screed board, it is not exclusively

-21 Fixed to this field of application. The insulating element according to the invention can also be used for laying on a floating screed and in principle also for insulating roofs, ceilings, exterior walls from inside, interior walls, and the like. Thus, various variations of the insulating element according to the invention are envisaged. In particular, other suitable fibrous or mineral wool materials, for example mineral wool or natural insulating materials, may be used instead of or in combination with glass wool. The material parameters then deviate considerably from the above data. In addition, according to the invention, the edge section of the insulating boards may be provided on several free sides of the insulating element or even on only one or more sub-sections.

The references in the claims, the description and the drawings serve only to better understand the invention and do not limit the scope of protection.

Claims (23)

1. Sheet-like insulating element for dry screed, of mineral wool, in particular of glass wool, containing - a main section (2) with a fiber arrangement (4) running substantially parallel to the plane (E) of the plate, and - at least one edge section (6) connecting to the main section (2) which has a substantially perpendicular fiber arrangement (8) relative to the plane (E) of the plate. Plate-like insulating element for dry screed, of mineral wool, in particular glass wool, as an intermediate for the production of the insulating element for dry screed according to claim 1, comprising - a main section (2) with a fiber arrangement (4) running substantially parallel to the plane (E) of the plate, and - at least one, in the main section (2), at a distance (A) to the edge of the insulating element and relative to the plane (E) of the plate, a substantially perpendicularly extending dividing line (10) defining a separable edge section (6); ) at least corresponds to the thickness (D) of the dry screed insulating element. The dry screed insulating element according to claim 1 or 2, characterized in that the main section (2) and the edge section (6) are made of the same mineral wool material. The dry screed insulating element according to claim 3, characterized in that the material The mineral wool of the main section (2) and the edge section (6) has a density in the range of about 40 to 100 kg / m ³ , in particular about 80 kg / m ³ . 5th dry screed according to claim 1, characterized in that the main section (2) is made of different materials Insulating element for indicating and edge section (6) of mineral wool. Dry screed insulating element according to claim 5, characterized in that the mineral wool material of the main section (2) has a density in the range of approximately 40 to 100 kg / m ³ , and the edge section (6) in the density range of approximately 25 to 100 kg / m ³ . The dry screed insulating element according to one or more of the preceding claims, characterized in that the section (2) and the edge section (6) are fasteners (14). of one or the claims, the main being considered Dry screed insulating element according to one or more of the preceding claims, characterized in that it is connected to the support plate (12). Dry screed insulating element according to claim 8 in combination with claim 1, characterized in that: coupling elements (14) between the support plate (12) and the main section (2) are provided, and - between the support plate (12) and the edge section (6). The dry screed insulating element according to claim 8 -24 in combination with claim 2, characterized in that connecting elements (14) between the support plate (12) and the main section (2) are provided. Dry screed insulating element according to claim 8 or 9 or 10, characterized in that the support plate (12) is an agglomerated wood board, a cement-bonded agglomerated wood board, a particle board, a cement-bonded particle board, a laminated wood board. , gypsum board, gypsum board, HDF or MDF board, OSB board or other similar board. Dry screed insulating element according to one or more of the preceding claims 8 to 11, characterized in that the support plate (12) is provided with at least one decorative layer (16). Dry screed insulating element according to claim 12, characterized in that the decorative layer (16) has a structured surface. Dry screed insulating element according to claim 12 or 13, characterized in that the decorative layer (16) is provided with at least one protective layer (18). Dry screed insulating element according to one or more of the preceding claims 8 to 14, characterized by a groove (22) and An insulating element for dry construction, characterized in that the support plate (12) is tongue 24). screed according to claim 15, characterized in that the groove (22) -25a and / or the pen (24) are provided with impregnation (26). Dry screed insulating element according to claim 15 or 16, characterized in that the tongue (24) is provided with a sizing joint (30) and / or a groove (22) by the sizing bevel (28). A dry screed insulating element according to one or more of the preceding claims, characterized in that it comprises at least one additional insulating element (32) arranged on the insulating side. Dry screed insulating element according to one or more of claims 8 to 18, characterized in that at least one additional insulating element (32) is arranged between the support plate (12) and the insulating element, and / or on the side of the insulating element facing away from the insulating element. the support plate (12). Dry screed insulating element according to claim 18 or 19, characterized in that the at least one additional insulating element (32) is a mineral wool board and / or a dry embankment and / or foil or the like. Dry screed insulating element according to claim 19 or 20 in combination with claim 1, characterized in that the edge section (6) extends over the overall height (H) of the layer formed by the main section (2) and the at least one additional insulating element (6). 32). A method for producing a dry screed insulating element according to claim 1 from an intermediate according to claim 2 or 10, -26 comprising the following steps: - separating the edge section (6) located between the dividing line (10) in the main section (2) and the edge of the insulating element, on the dividing line (10), - arranging a separate edge section (6) on the insulating element such that the fiber arrangement (8) of the edge section (6) extends substantially perpendicularly to the plane (E) of the plate, and - fixing the separate edge section (6) on the separating surface of the remaining main section (2), and / or on the support plate (12). An insulating element surface comprising a plurality of joined screed dry screed insulating elements (P) according to one of claims 1 to 21, and screed dry screed insulating elements (P) having relative to the plane (E) of the slab in a substantially parallel arrangement of fibers. dry screed, with essentially 24. The insulating element surface of claim 23, wherein: - plate-like insulating elements (P) on which comprise a main section (2) running parallel to the fiber arrangement (4) and at least one edge section (6) connecting to the main section (2) relative to the plane (E) a plate substantially perpendicular to the fiber arrangement in the peripheral area of the insulating element surface, and - the plate-like insulating elements (P) for the dry screed, which have a substantially perpendicular fiber arrangement relative to the plane (E) of the plate, are arranged in the central region of the surface of the insulating element. -2725. The surface of the insulating element according to claim 1, characterized in that one or more plate-like insulating screed having at least one reinforcing section (46) extending beyond the peripheral region of the plate-like insulating screed element (P).