EP1582645A1 - False ceiling - Google Patents

Abstract

The suspended ceiling includes insulation plates which have a weight of about less than 6 kg per square metre whilst the adjacent support rails (2) are arranged at distances of preferably 1800 and 1875 mm between each other. The hangers (9) are mounted on a support rail (2), cross rail (3) and/or intermediate rail (4) at a distance from each other of 1200 mm. The hangers can be adjustable in length. The insulation plates are made from mineral fibres bonded by binders.

Description

The invention relates to a suspended ceiling, in particular for the arrangement in a building with a supporting structure consisting of at least two mounting rails, arranged at right angles to the mounting rails and detachable with the mounting rails connected cross rails and parallel to the support rails extending, respectively two adjacently arranged transverse rails connecting intermediate rails consists, wherein the cross-sectionally T-shaped mounting rails, cross rails and intermediate rails a grid with rectangular areas form, in the insulation boards are inserted so that they run horizontally Transverse webs of cross rails, mounting rails and intermediate rails rest and wherein between the mounting rails, cross rails and / or intermediate rails and the building hanger are arranged.

Such ceilings are known from the prior art and are arranged in many ways, especially in the area of interiors, wherein a supporting structure with insulation boards on hangers with the building, in particular a building ceiling is connected. The structure is arranged at a predetermined distance from the building so that a cavity is formed between the structure and the building. By DIN 18 168, October 1981 issue, the dead load of such suspended ceilings including any installations is limited to ≤ 0.5 kN / m ² . If such suspended ceilings are installed outside closed rooms, then any stresses due to wind suction or wind pressure must be taken into account when loading the ceilings. Such stresses are of course also to be considered in closed rooms of buildings, as far as can not be detected wind stress here. For example, open windows or frequently opening doors or gates are responsible for this. In particular, a combination of open windows and frequently opening doors and gates leads to high wind loads, which are difficult to calculate, so that the corresponding construction elements must be sufficiently stable and thus designed with a high weight.

The suspension of ceilings is usually made of sound insulation Reasons or to create cavities between the suspended ceiling and the building, which cavities previously installed pipe, ventilation ducts, Take cable or the like and covered by the suspended ceiling become. In this case, the suspended ceiling has additional aesthetic effects on. The same applies to the use of suspended ceilings in high-ceilinged rooms, for example in offices, to give them a more homely atmosphere to rent. Incidentally, suspended ceilings are also used for the the heating of such spaces with high ceilings to be used energy reduce.

By an appropriate selection of the insulation boards, both the sound insulation the building ceiling supporting the suspended ceiling as well Transmission of noise from the cavity between the suspended ceiling and the building ceiling can be reduced. When using suitable In addition, insulation boards can also be the sound longitudinal line between adjacent Rooms with a common cavity between the building ceiling and the suspended ceiling to be mitigated.

The sound insulation and speech intelligibility in the rooms is through the so-called reverberation time characterizes. Sound insulation and speech intelligibility be u.a. by the sound absorption levels of the insulation boards at different Frequencies significantly influenced. Because this effectiveness is in the foreground stands, are used as insulation boards so-called acoustic panels.

Ceilings according to the invention have a supporting structure which consists of metal profiles consists. These metal profiles may according to standards a deflection of at most 1/500 of its span, i. the suspension distance, wherein a boundary the deflection of 4 mm is provided. The load capacity of the metal profiles is made by bending tests at different spans and loads determined in both directions. From centrally attached forces, the deflections and the spans are the flexural rigidity and allowable Bending moment and thus also the permissible load calculated by the cover layers. Such metal profiles consist of 0.4 mm thick hot-dip galvanized strips or sheet metal, for example made of soft unalloyed steels or of aluminum alloys, but have a minimum material thickness of 0.5 mm.

The metal profiles are connected to the building via hangers. The hangers can be designed, for example, as simple wires, spring tension hangers, threaded rods or so-called vernier hangers, which are steel or aluminum hangers with telescoping subelements. The number of hangers depends on the load capacity of the metal profiles, which are designed as mounting rails, cross rails and intermediate rails and which carry the load-bearing insulation boards. In practice, it has been shown that for each 1.5 m ² ceiling surface at least one hanger is required.

In addition to the dead load of the construction elements of the suspended ceiling are internals, such as lights, ventilation inlets and outlets, smoke detectors and advertising and signs. Some of these installations are not with the suspended ceiling, but to connect with the building ceiling. in this connection Either a direct connection to the building ceiling is provided or additional mounting rails pulled into the suspended ceiling, in addition to the building ceiling can be connected via hanger.

The metal profiles, namely the mounting rails, cross rails and intermediate rails are arranged at right angles to each other and connected. The Mounting rails, cross rails and intermediate rails form a grid with a right angle limited areas whose size matches the size of the Match insulation boards. The insulation boards are inserted in such a way that on horizontally extending transverse webs of the cross rails, mounting rails and Intermediate rails rest. A connection between the insulation boards and the structure is not provided in the rule, as to be carried out in the course of Maintenance work and / or supplementary installations in the cavity an unhindered, i.e. easy-to-open access must be present. An appropriate one Access is approximate for insulation boards not connected to the structure possible at any point of the suspended ceiling, so that eventual Maintenance and / or installation work can be carried out in a simple manner can. Incidentally, the missing connection between the insulation boards and the structure also sonic advantages by decoupling the above mentioned construction elements.

For example, the aforesaid acoustic panels consist of blends of artificially produced glassy solidified fibers, namely so-called glass wool or rockwool fibers, which are made with a large proportion of expanded perlite using binders made from starch. For example, such acoustic panels have a proportion of up to 40% by mass of expanded perlite, up to 30% by weight of glassy solidified fibers, up to 15% by mass of starch, up to 10% by mass of kaolin, up to 5% by mass of cellulose fibers or cellulose fibers Paper and up to 5% by mass of crystalline SiO ₂ or sand. The average bulk density of such acoustic panels is about 256 kg / m ³ and can be up to 400 kg / m ³ . Because of the binding of mineral fibers and perlite with starch derivatives, these acoustic panels are sensitive to moisture and, for example, react with swelling. The glassy solidified fibers serve as reinforcements in these acoustic panels, and these acoustic panels tend to sag due to their swelling effect and, in particular, their own weight. The maximum size of such acoustic panels is therefore very limited, taking into account their respective thickness. Due to their tendency to sag and large contact surfaces are required to prevent falling out of the acoustic panels from the structure. Overall, the use of such heavy insulation boards therefore leads to heavy use of the structure and in particular the hanger, the number of which must be increased by the high weight of the insulation boards to achieve the necessary stability of the suspended ceiling.

In addition to the above-described acoustic panels are mineral wool ceiling tiles known, which consist of bonded glass fibers. Usually mineral wool ceiling panels are distinguished according to their fiber material, after which Glass wool mineral wool ceiling tiles of mineral wool ceiling tiles can be distinguished from rock wool. This distinction points to differences in the chemical composition, which at the same time certain fiberization techniques or fiberization devices required. There are but in the meantime also mineral fibers made of glass wool have become known in their chemical composition and the thermal Properties according to, for example, with a melting point> 1000 ° C according to DIN 4102, Part 17, correspond to mineral fibers made of rockwool, but are made with fiberizing devices commonly used for the Production of mineral fibers from glass wool find use.

There are also known acoustic panels made of mineral fibers, which are produced in a wet process. In this relatively complex manufacturing process, the mineral fibers are arranged in relatively dense packing with densities of more than 130 kg / m ³ flat to the large surfaces of the acoustic panels, so that the acoustic panels have high tensile strengths in the direction of the two horizontal spatial axes and sufficient rigidity. The transverse tensile strength of these acoustic panels is not high, but is sufficient to form durable flat acoustic panels. In order to achieve a sufficient bending strength, high binder amounts are required.

Such acoustic panels are standard with the dimensions 600 mm x 600 mm or 600 mm x 1,200 mm, each with a thickness of 22 mm for a Structure with 24 mm wide straps offered. The edge areas of these acoustic panels are aligned either at right angles to the large surfaces or have a gradation, which is arranged in the area of the visible surface, so that the beams of the structure above the level of the room - side surfaces of the Acoustic panels are arranged. Usual steps have a height of 7 mm. The large bulk density of the above-described acoustic panels requires accordingly Stable beams in the structure or a high number of suspension points, to the required stability of a corresponding suspended Ceiling to achieve.

Starting from this prior art, the invention has for its object to design a generic ceiling such that in particular the number of carrier rails and the hanger is lowered, and at the same time remains in optionally ease of mounting rails, cross rails and the intermediate rails, the stability of the blanket.

The solution to this problem provides that the insulation boards have a basis weight ≤ 10 kg / m ² , in particular ≤ 6 kg / m ² and that adjacent support rails are arranged at a distance of between 1,200 mm, preferably 1,800 mm and 1,875 mm to each other.

The inventive design of the suspended ceiling with the specified Basis weight of the insulation boards leads to a reduction the hanger, due to the low basis weight of the insulation board in can be arranged at a relatively large distance from each other. The usual used insulation boards have dimensions of 600 mm x 600 mm or 600 mm x 1,200 mm. Hereby can be arranged between two adjacent Guideways two or three insulation boards are arranged. At a Distance between the mounting rails of 1,875 mm are insulation boards with 625 mm x 625 mm or 1250 mm x 625 mm. It exists but also the possibility to use insulation boards, the same width are longer and, for example, 1,500 mm to 2,400 mm long.

Due to the arrangement of the mounting rails in the specified intervals is for others significantly reduced the weight of the structure. Overall, therefore, results a combinatorial effect of the reduced weight of the structure and the insulation boards used with the specified basis weight.

According to a further feature of the invention, it is provided that the hangers of a support rail, transverse rail and / or intermediate rail are arranged at a distance from each other of 1,200 mm. In addition, it is provided that the hangers are attached to the support rails, so that provided at an example provided distance between the adjacent support rails of 1,875 mm and a distance of the hanger on the mounting rails of 1,200 mm two hangers in an area of 2.25 m ² are.

The support rails have at their ends corresponding connecting elements on, preferably a plugged connection arranged one behind the other Allow mounting rails. This embodiment serves to simplify the Assembly of corresponding mounting rails, which, for example, with a Length of 3.700 mm can be formed.

According to a further feature of the invention, it is provided that the mounting rails have openings distributed uniformly over their length, the the inclusion of the crossbars at the end arranged plug-in elements serve. The plug-in elements are from both sides of the mounting rails in the inserted corresponding openings and connect the cross rails form-fitting with the mounting rails, without it, for example, a screw or the like is needed. This embodiment is also used accelerated production of a structure in a building room.

In addition, it is provided according to a further feature of the invention that the Cross rails at their ends identically formed plug-in elements and on their Length evenly distributed openings have that of the recording serve at the intermediate rails end connectors arranged. in this connection the plugs of the intermediate rails can coincide with the plug-in elements be formed of the cross rails. In the same way are the openings preferably coincident in the cross rails and the support rails educated.

According to a further feature of the invention it is provided that the hanger are formed variable in length, to unevenness in the building ceiling to be able to compensate.

Preferably, the insulation boards consist of mineral fibers bound to binders, in particular of rock wool, and have a density of between 70 kg / m ³ and 140 kg / m ³ , in particular between 70 kg / m ³ and 115 kg / m ³ .

These inventively provided insulation boards have duroplastisch as binders hardening phenol or formaldehyde urea resins or mixtures from this, with as preferred binder content in insulation boards Rock wool 2.5 to 4.5% by mass and glass wool insulation boards of maximum 8% by mass.

The orientation of the mineral fibers in the insulation boards and the high levels of Binders cause a sufficiently high dimensional stability, which even at relative high humidity levels of the ambient air is maintained.

Preferably, the insulation board has on its support rails, cross rails and intermediate rails facing, called the visible surface large surface a lamination of a fiberglass roving on. This lamination is especially fully or partially glued to the insulation board. In addition can be provided that the lamination deviates from the insulation board Coloring, preferably by an order from a in water is formed dispersed color. But there are also insulation boards with untreated Visible surfaces usable. Is the glass fiber random web untreated, so embossing the basic color of the fiberglass mat and the translucent insulation board the appearance. A colored design of the glass fiber random web can be provided before bonding with the insulation board.

According to a further feature of the invention, it is provided that the second large surface of the insulating panel facing the visible surface has a thin and sound-transparent coating, in particular in the form of a fiberglass mat. The rigid structure of the insulating board of mineral fibers, which has already been given, is additionally improved by the glued-on, tension-resistant and, to a certain extent, pressure-resistant glass fiber random web. The result is that the insulation boards with a thickness between 10 mm and 40 mm, in particular between 12 mm and 15 mm and a basis weight between 1.3 kg / m ² and 3.2 kg / m ² , in particular between 1.6 kg / m ² and 2.2 kg / m ² can be formed without the risk that the insulation boards sag even in large area design in the structure. The relatively high resistance moments of the insulation boards allow far away the design of such insulation boards with the usual dimensions of, for example, 625 mm x 625 mm or 1250 mm x 625 mm but also with longer and narrower measurements, such as 1,500 mm to 2,400 mm x 625 mm.

The high rigidity of the insulation boards also has a positive effect on the Stiffening of the structure.

Preferably, the insulation boards have an open porosity of ≥ 90 vol .-% and are therefore highly sound-absorbing at medium to high frequencies. Finally, it is provided according to a further feature of the invention that the Insulating board circumferentially has a gradation. Alternatively, the edges or side surfaces of the insulation boards to be smooth.

Of course, in combination with the insulation boards described above, the acoustic panels of expanded perlite and vitreous solidified fibers already known from the prior art can be used to improve the sound insulation performance. By combining the lightweight insulation panels made of mineral fibers and the heavy acoustic panels, the acoustic panels can be installed with significantly reduced material thickness, without any deterioration of the sound insulation performance. Overall, therefore, such combinations can lead to composite panels whose basis weights are between 6 and 8 kg / m ² , which have a very high degree of sound absorption, at the same time allow a reduction in the load capacity of the structure, so that on the one hand, the distance between adjacent support rails correspondingly increased and other the number of hangers can be reduced.

The surprisingly significant reduction in the basis weights of the insulation boards thus leads to a reduction of the required strength of the structure, so that the carrier rails, cross rails and intermediate rails used with formed a lower bending stiffness and lower bending moments can be. But to prefer such an approach is a more economical and technically more advantageous solution in that the distances of the mounting rails are increased, creating a greater variability in the selection of attachment points and overall reduction in the Number of hangers is possible.

Figur 1

einen Abschnitt eines Tragwerks einer abgehängten Decke in perspektivischer Ansicht;

Figur 2

eine Tragschiene eines Tragwerks in Seitenansicht;

Figur 3

die Tragschiene gemäß Figur 2 in vergrößert dargestellter Ansicht;

Figur 4

eine Querschiene des Tragwerks in Seitenansicht;

Figur 5

die Querschiene gemäß Figur 4 in vergrößert dargestellter Ansicht;

Figur 6

eine Zwischenschiene des Tragwerks in Seitenansicht;

Figur 7

die Zwischenschiene gemäß Figur 6 in vergrößert dargestellter Ansicht;

Figur 8

eine erste Ausführungsform einer Dämmplatte in perspektivischer Ansicht und

Figur 9

eine zweite Ausführungsform einer Dämmplatte in perspektivischer Ansicht.

Further features and advantages of the invention will become apparent from the following description of the accompanying drawings, are shown in the preferred embodiments of a suspended ceiling. In the drawing show:

FIG. 1

a section of a structure of a suspended ceiling in perspective view;

FIG. 2

a mounting rail of a structure in side view;

FIG. 3

the support rail according to Figure 2 in an enlarged view;

FIG. 4

a transverse rail of the structure in side view;

FIG. 5

the cross rail of Figure 4 in an enlarged view;

FIG. 6

an intermediate rail of the structure in side view;

FIG. 7

the intermediate rail according to Figure 6 in an enlarged view;

FIG. 8

a first embodiment of an insulation board in perspective view and

FIG. 9

a second embodiment of an insulation board in a perspective view.

FIG. 1 shows a section of a supporting structure 1 in a perspective view. The section of the structure 1 consists of two mounting rails 2 and three For this purpose arranged at right angles crossbars 3, between which in turn perpendicular to the cross rails 3 and thus arranged parallel to the support rails 2 Intermediate rails 4 are arranged. The structural design the support rails 2, cross rails 3 and intermediate rails 4 results from the Figures 2 to 7, to which reference is made below.

Between the support rails 2, cross rails 3 and intermediate rails 4 are rectangular areas 5 for receiving insulating panels 6 (FIGS. 8, 9) formed, wherein the surfaces 5 are formed coextensive with the insulating panels 6 are. The insulation boards 6 lie on horizontally extending transverse webs 7 of Cross rails 3, intermediate rails 4 and mounting rails 2 on.

Between the adjacently arranged mounting rails 2 is a distance A of Arranged 1,800 mm, so that with an arrangement of three insulating panels 6 between the support rails 2 each insulation board has a length of 600 mm.

On the edge side in Figure 1 L-shaped profiles 8 can be seen, on the one hand to not shown building parts, such as a wall fastened, in particular can be screwed and on the other hand, the support of the ends of the support rails 2, Cross rails 3 and intermediate rails 4 are used.

On the mounting rails 2 hangers 9 are arranged, which support the structure 1 with a also not shown building component, namely a ceiling connect, wherein the hanger 9 are formed in two parts and both parts in Their distance from each other are adjustable.

The hangers 9 of each support rails 2 are at a distance B of 1,200 mm arranged to each other.

According to Figures 3, 5 and 7, the support rails 2, the cross rails 3 and the intermediate rails 4 in cross-section T-shaped, wherein the support rail 2, the cross rail 3 and the intermediate rail 4 each from a Sheet metal strips 10 are folded and in the region of the crosspiece 7 of another Sheet metal strips 12 are sheathed.

The metal strip 12 in the region of the transverse web 7 forms a visible surface 13. Each Support rail 2, cross rail 3 and intermediate rail 4 has to increase the Resistance moments against bends and for attaching the hanger 9 a the transverse web 7 opposite arranged head 14, wherein in the head 14th the support rail 2 a plurality of recesses 15 of rectangular configuration are arranged, in which recesses 15 hanger or springs for Holding down inserted insulation panels 6 can be inserted.

Between the head 14 and the crossbar 7 is in the support rails 2, the Cross rails 3 and the intermediate rails 4, a central web 16 is formed. Of the Middle web 16 of the support rail 2 and the cross rail 3 has slot-shaped recesses 17, wherein the slot-shaped recesses in the mounting rail 2 are each flanked by two holes 18. In addition, in the mounting rail 2 provided in the region of the central web 16 a so-called Feuerstanzung 19, in the event of fire at this point a targeted deformation of the support rail 2 allows.

The support rail 2 has at its ends in the region of the central web 16 corresponding Connecting elements 20, which are a stuck connection to each other aligned arranged mounting rails 2 connects to each other. In the same way are at the central web 16 of the cross rail 3 and the intermediate rail 4 end Plug elements 21 and plug 22 are arranged. The plug-in elements 21 of the cross rails 3 are inserted into the recesses 17 of the support rail 2. The plugs 22 of the intermediate rail 4 are in contrast in the recesses 17 in Middle web 16 of the cross rails 3 can be inserted. The connection between the carrier rails 2 and the cross rails 3 is also detachable, as the Connection between the cross rails 3 and the intermediate rails. 4

FIGS. 8 and 9 show two exemplary embodiments of insulating panels 6 which can be inserted into the surfaces 5 of the supporting structure 1 according to FIG. 1 and rest on the transverse webs 7 of the mounting rails 2, the transverse rails 3 and the intermediate rails 4. Figure 8 shows a first embodiment of an insulating panel 6, which consists of binders bound mineral fibers with a density of 90 kg / m ³ . The mineral fibers are arranged in a plate-shaped layer 23, wherein the mineral fibers are aligned substantially parallel to the large surfaces 24. As a binder, the insulating board 6 contains a mixture of phenol and formaldehyde-urea resins, wherein the mineral fibers are made of rock wool and the binder content of the insulating board is 3.5% by mass.

The insulation board 6 has in the area of its designed as a visible surface large Surface 24 on a lamination 25, which consists of a glass fiber random web. The lamination 25 is the entire surface of the insulation board 6, namely the large Surface 24 glued.

In the area of the opposite large surface 24 is a thin and sound-transparent coating 26 arranged, which also consists of a fiberglass random web exists and is connected to the layer 23. The lamination 25 and the coating 26 are tensile and pressure resistant, the Insulating board 6 has an open porosity of> 90 vol .-%.

The insulation board 6 has a thickness of 15 mm and a basis weight of 2 kg / m ² .

Figure 9 shows a second embodiment of an insulating board 6, which consists of a Layer 23 consists of mineral fibers, which layer 23 in the region of their large Surface 24 has a lamination 25 of a fiberglass mat, so the layer 23 substantially coincides with the insulating panel 6 according to FIG. 8. In combination with the layer 23, a further layer 27 is provided, which may be connected to the layer 23 or only rests on this.

The layer 27 consists of a mixture of expanded perlite and glassy solidified fibers, wherein the layer 27 contains up to 40% by mass of expanded perlite and up to 30% by mass of glassy solidified fibers. The layer 27 has a mean apparent density of about 256 kg / m ³ . Overall, the insulating plate 6 according to FIG 9 forms a composite plate having the high sound absorption capacity of the layer 23 of mineral fibers and the good sound insulation of the layer 27 of expanded perlite. The weight per unit area of the insulating panel 6 according to FIG. 9 is 8 kg / m ² .

Due to the insulation boards 6 used, the suspended ceiling described above leads to a reduction in the weight to be absorbed by the supporting structure 1 with a sound-absorbing performance which is not reduced in comparison with the prior art. With basis weights of the insulation boards 6 of less than 3.2 kg / m ^{3, it} is possible to increase the center distance between the mounting rails 2 to the grid dimensions, such as 600 mm or 625 mm to 1,800 mm or 1,875 mm. In order to reduce the allowable deflection of the structural elements of the structure 1, for example, to avoid unwanted shadow effects in the grazing light, it is possible to limit the basis weights of the insulating panels 6 to less than 2.4 kg / m ² , without thereby adversely affecting the Schalldämmleistung must be taken into account.

The described ceiling is especially for indoor use designed. However, it can also be used outdoors, if only low loads due to wind pressure or wind suction are to be expected. The light ones Insulating panels 6 are in this case by brackets or other means against to secure the push-up or against slipping out in the structure 1. The Size of the insulation boards 6 may also be limited in these applications. The increase in the axial distance of the mounting rails 2 leads to significant Facilitates the choice of attachment points. Often need the hangers 9 are placed just where air ducts, pipelines or cables below the load-bearing ceiling or other component. A suspension of the ceiling on these installations or their supporting structures is usually not allowed or technically possible.

In some buildings, such as commercial halls or the like is often no load-bearing ceiling between the usable space and the Roof construction available. Such a roof construction is usually from a load-bearing steel or wooden construction, whereby their binder in relative are arranged at great distances from each other. By the ceiling of the invention There is now the possibility of this without additional auxiliary construction to the to attach a few binders, without the stability of the ceiling disadvantageous influence.

By reducing the number of attachment points of the structure is in particular, the advantage that the time required and thus the labor costs be reduced for the construction of the ceiling according to the invention.

Claims (20)

Suspended ceiling, in particular for the arrangement in a building, with a supporting structure, which consists of at least two mounting rails, arranged at right angles to the support rails and releasably connected to the support rails cross rails and extending parallel to the support rails, each two adjacently arranged transverse rails connecting intermediate rails, wherein the cross-sectionally T-shaped mounting rails, crossbars and intermediate rails form a grid with rectangular areas in the insulation boards are inserted so that they rest on horizontally extending transverse webs of the cross rails, mounting rails and intermediate rails and wherein between the support rails, cross rails and / or Intermediate rails and the building hanger are arranged
characterized in that the insulating panels (6) have a basis weight ≤ 10 kg / m ² , in particular ≤ 6 kg / m ² and that adjacent support rails (2) are arranged at a distance of 1200 mm, preferably 1800 mm and 1875 mm to each other. Ceiling according to claim 1,
characterized in that the hangers (9) on a support rail (2), transverse rail (3) and / or intermediate rail (4) are arranged at a distance from each other of 1200 mm. Ceiling according to claim 1,
characterized in that the hangers (9) are fixed to the support rails (2). Ceiling according to claim 1,
characterized in that the support rails (2) have at their ends corresponding connecting elements (20), which preferably allows a plug-in connection successively arranged mounting rails (2). Ceiling according to claim 1,
characterized in that the support rails (2) distributed over their length evenly spaced recesses (17), which serve to receive at the transverse rails (3) end-mounted plug-in elements (21). Ceiling according to claim 1,
characterized in that the transverse rails (3) at their ends identically designed plug-in elements (21) and distributed uniformly over their length arranged recesses (17) which serve to receive at the intermediate rails (4) end plugs (22). Ceiling according to claim 1,
characterized in that the hangers (9) are formed variable in length. Ceiling according to claim 1,
characterized in that the insulating panels (6) consist of mineral fibers bound to binders, in particular of rock wool, and have a density of between 70 kg / m ³ and 140 kg / m ³ , in particular between 70 kg / m ³ and 115 kg / m ³ . Ceiling according to claim 1,
characterized in that the insulating panels (6) as a binder duroplastisch hardening phenol or formaldehyde urea resins or mixtures thereof. Ceiling according to claim 8,
characterized in that the binder content in insulation boards (6) of rock wool 2.5 to 4.5% by mass and in insulation boards (6) made of glass wool max. 8% by mass. Ceiling according to claim 8,
characterized in that the insulating board (6) on its the support rails (2), transverse rails (3) and intermediate rails (4) facing, designated as the visible surface large surface (24) has a lamination (25) of a fiberglass random web. Ceiling according to claim 11,
characterized in that the lamination (25) is fully or partially bonded to the insulating panel (6). Ceiling according to claim 11,
characterized in that the lamination (25) has a different color of the insulation board (6), which is preferably formed by an application of a dispersed in water paint. Ceiling according to claim 11,
characterized in that the visible surface opposite the second large surface (24) of the insulation board (6) has a thin and sound transparent coating (26), in particular in the form of a fiberglass random webs. Ceiling according to claim 8,
characterized in that the insulating board (6) has a thickness between 10 mm and 40 mm, in particular between 12 mm and 15 mm and a basis weight between 1.3 kg / m ² and 3.2 kg / m ² , in particular between 1.6 kg / m ² and 2.2 kg / m ² . A blanket according to claim 11 or 14,
characterized in that the lamination (25) and / or the coating (26) is designed tensile strength and / or pressure-resistant or are. Ceiling according to claim 1,
characterized in that the insulation board has a layer (23) with high sound absorption capacity and a layer (27) with high sound insulation. Ceiling according to claim 1,
characterized in that the insulating board (6) is formed as a composite plate and a layer (23) of mineral fibers and binders and a layer (27) of expanded perlite and vitreous solidified fibers. Ceiling according to claim 17,
characterized in that the basis weight of the insulating board (6) ≤ 8 kg / m ³ . Ceiling according to claim 8,
characterized in that the insulation board (6) circumferentially has a gradation.

Images