CEILING ELEMENT COMPRISING BULK MATERIAL

Description

[0001] The invention relates to the field of ceilings in multi-story residential buildings, in particular to ceiling elements in multi-story residential buildings constructed using drywall construction. It relates to a ceiling element and a method for its production according to the preamble of the corresponding independent patent claim.

[0002] Prefabricated ceiling elements for multi-story residential buildings using drywall construction already exist. These are usually prefabricated concrete slabs that are transported to the construction site, where they simply need to be positioned and installed. This offers the well-known advantages of drywall construction, namely a short construction time because there is no need to wait for the drying and / or curing of ceilings produced on site. For example, CH 699 439 describes a prefabricated element for drywall construction, comprising at least one cassette filled with foam glass granules for thermal insulation.

[0003] On the other hand, conventional ceiling elements have the disadvantage that they offer poor sound insulation when ready for use (i.e. when the finished residential buildings are in use). Impact noise, in particular, can often be heard through the ceilings, which serve as the floor on the floor above. The ceiling elements are also difficult to transport. Due to the size and weight of conventional ceiling elements, special transport is usually necessary. To avoid transport damage, ceiling elements are usually transported vertically so that the weight of many ceiling elements stacked on top of each other does not damage the ceiling elements below. This makes transport, loading, and unloading of conventional ceiling elements complex. The reusability of the materials is also no better with conventional ceiling elements than with cast-in-place concrete ceilings.

[0004] It is therefore an object of the invention to provide a ceiling element of the type mentioned above that at least partially eliminates one of the above-mentioned disadvantages. Another object of the invention is to provide a method for producing a ceiling element of the type mentioned above that at least partially eliminates one of the above-mentioned disadvantages.

[0005] One of these objects is achieved by a ceiling element having the features of the corresponding independent patent claim. Advantageous embodiments can be found in the dependent claims, the description, and / or the figures.

[0006] The ceiling element according to the invention is prefabricated and transportable. It is used as an intermediate floor in multi-story residential buildings constructed using drywall construction. The ceiling element comprises a supporting structure and a closed cassette. The supporting structure has a load-bearing capacity for the ceiling element in a ready-to-use state. When the ceiling element is ready for use, the closed cassette is arranged so that it can move relative to the supporting structure and is located above the supporting structure. The closed cassette contains bulk material for sound insulation and encloses the bulk material. When the ceiling element is ready for use, the bulk material is arranged so that it can move within the cassette.

[0007] A ceiling element as a mezzanine floor in a multi-story residential building forms, in the ready-to-use state of the ceiling element, on the one hand a ceiling for a room arranged below the mezzanine floor, and on the other hand a floor or a support for a floor covering for a room arranged above the mezzanine floor.

[0008] In a ready-to-use condition means that the ceiling element is installed in the multi-story residential building and the residential building can be occupied.

[0009] For example, the ceiling element can also be used in a multi-story building that includes both residential and commercial spaces. Analogous to the above definition, if the residential spaces of this building can be occupied, the ceiling element is in a usable condition.

[0010] Spatial information such as up or down refers to the direction of gravity: gravity points from top to bottom.

[0011] A ceiling element is prefabricated for transport if the ceiling element is both prefabricated and transportable.

[0012] Prefabricated means that the ceiling element can be installed on site (the construction site of the multi-story residential building) without any structural changes. In other words, the ceiling element does not have to be assembled or built on site, but can essentially be used as delivered. The basic arrangement of the components of the ceiling element is retained after prefabrication. Connections and joints between the ceiling element and other elements such as walls or other ceiling elements created on site do not change the basic arrangement of the components of the ceiling element. Even the formation of a floor covering on top of the ceiling element does not change the basic arrangement of the components of the ceiling element. The prefabricated ceiling element can therefore be installed, connected, attached (e.g. to a heating and / or cooling circuit) and / or provided with a floor covering on site.

[0013] "Transportable" means that the ceiling element is in a condition that allows for damage-free transport. Transport of the ceiling element is typically carried out at least partially by truck and crane.

[0014] In particular, the ceiling element can assume a transport configuration and a use configuration different therefrom, wherein the cassette is arranged immovably relative to the support structure in the transport configuration and the cassette is arranged movable relative to the support structure in the use configuration.

[0015] The cassette can be made of metal.

[0016] The cassette can be made of wood.

[0017] The cassette can be made of plastic.

[0018] For example, the cassette is made in one piece.

[0019] However, the cassette can also comprise two or more segments. In this case, the cassette is composed of several segments.

[0020] The supporting structure has a load-bearing capacity for the ceiling element in a ready-to-use state, i.e., when installed and used as a mezzanine floor in a multi-story residential building. The supporting structure meets all necessary static and structural requirements regarding the load-bearing capacity and stability of the ceiling element.

[0021] When the ceiling element is ready for use, the closed cassette is arranged so that it can move relative to the supporting structure. The cassette can therefore move relative to the ceiling element.

[0022] In particular, the cassette can move laterally relative to the supporting structure when the ceiling element is ready for use. Lateral here means all directions, excluding up and down.

[0023] The cassette is positioned above the supporting structure. In particular, the cassette rests on the supporting structure when the ceiling element is ready for use.

[0024] The closed cassette contains and encloses bulk material. The bulk material is arranged movably within the cassette. This bulk material serves the purpose of sound insulation.

[0025] Bulk material is a material that is pourable. This means a powdery, granular, or lumpy mixture that is in a pourable form.

[0026] The movable bulk material and the movable cassette give the ceiling element the qualities of a flexible screed. This achieves sound insulation. The mobility of the bulk material and cassette allows for at least partial absorption of sound waves. The mobility of the bulk material and cassette allows for at least partial diffusion of sound waves.

[0027] The closed cassette with bulk material can be understood as a dry screed element.

[0028] The ceiling element therefore exhibits advantageous sound insulation properties. Furthermore, good thermal insulation is achieved, as the bulk material is mobile and contains a certain amount of air.

[0029] The prefabricated ceiling element also has the well-known advantages of dry construction, i.e. the short construction time, because there is no need to wait for drying and / or curing of ceilings produced on site.

[0030] The prefabrication and transportable design of the ceiling element allow for easy transport of the ceiling element.

[0031] Prefabrication of the ceiling element allows for specific adaptation of its properties to very specific requirements. For example, sound insulation properties can be tailored from minimum to advanced standards. Different prefabricated ceiling elements can also be arranged side by side on a single floor to meet different requirements for mezzanine floors in different rooms.

[0032] A production facility for ceiling elements can draw on a wide variety of materials and tools that aren't available on-site at a construction site. A production facility also offers more flexible constraints than a construction site, such as good spatial accessibility. This increases the quality of the ceiling elements delivered and used.

[0033] A prefabricated ceiling element can be subjected to quality control and testing before transport, installation, or use. This also increases the quality of the delivered and used ceiling elements.

[0034] The design of the ceiling element with supporting structure and cassette allows for easy reuse or recycling of the materials when the residential building is demolished.

[0035] Further preferred embodiments emerge from the dependent patent claims. Features of the method claims can be combined mutatis mutandis with the device claims and vice versa.

[0036] The ceiling element optionally includes a transport lock fastener. This transport lock fastener allows a transport lock to be attached to the ceiling element. This creates a transport configuration of the ceiling element in which the cassette is fixed relative to the supporting structure. Releasing the transport lock then converts the ceiling element from the transport configuration to a ready-to-use configuration.

[0037] The transport lock fastener, which is part of the ceiling element, allows for a quick configuration change from the transport configuration to the use configuration. A transport lock can be attached to or removed from the transport lock fastener.

[0038] The transport lock can be enclosed by the ceiling element, i.e. it can be part of the ceiling element.

[0039] Alternatively, the transport lock is not part of the ceiling element, but is a separate element.

[0040] The transport lock attachment can also be used for other purposes.

[0041] For example, the transport securing fastening can provide attachment points for lifting and maneuvering the ceiling element.

[0042] The transport securing attachment can optionally be used as a starting point for attaching the ceiling element to walls.

[0043] Optionally, the transport securing fastening is arranged at least partially on the ceiling element when the ceiling element is ready for use.

[0044] In other words, after the transport lock is released, part of the transport lock fastener remains with the ceiling element. In particular, the transport lock fastener remains at least partially within the ceiling element, i.e., at least partially enclosed by the ceiling element.

[0045] This way, the transport securing fasteners remain intact for future uses of various kinds. Complete disassembly is not necessary.

[0046] Optionally, the ceiling element, when ready for use, has an upper side of the cassette designed as a support for a floor covering.

[0047] In particular, the floor covering is not included in the ceiling element.

[0048] The ceiling element without flooring is versatile and can be customized on-site at the construction site of a multi-story residential building. The flooring is often individually and specifically selected. The ceiling element is fully formed except for the flooring.

[0049] By placing the floor covering directly on the cassette, the sound and thermal insulation of the ceiling element can function and be used effectively.

[0050] The floor covering can also be included in the ceiling element.

[0051] Optionally, the cassette area, projected onto a horizontal plane, is at least 70% of the ceiling element area. For example, this area is at least 80%. And in particular, this area is at least 90%. This refers to the ready-to-use state of the ceiling element.

[0052] The direction of gravity is perpendicular to the horizontal plane.

[0053] Viewed from above, the ceiling element, when ready for use, has a cassette area that accounts for at least 70% of the area of ​​the entire ceiling element.

[0054] The large surface area of ​​the cassette ensures good sound and thermal insulation.

[0055] The ceiling element optionally features a wall mounting device. This wall mounting device allows a force-fit connection of the supporting structure to a wall that is adjacent to the ceiling element when ready for use.

[0056] A wall-mounted ceiling element allows for quick and efficient installation. A force-locking connection can be easily established.

[0057] The force-locking connection can also be designed to be form-locking.

[0058] In particular, the wall mounting device can be connected to the transport locking device by force-locking. The transport locking device can form part of the wall mounting device, or vice versa.

[0059] The ceiling element can also be designed free of a wall fastening device.

[0060] The cassette can optionally be made waterproof.

[0061] A waterproof cassette prevents moisture absorption by the bulk material. This benefits the bulk material's mobility and results in good and consistent sound and thermal insulation properties.

[0062] Optionally, the ceiling element includes a heating cable. The heating cable is arranged essentially within the cassette or essentially in contact with the cassette. In particular, the heating cable is designed in the form of metal tubes.

[0063] A heating cable integrated into the prefabricated ceiling element allows for particularly rapid installation of a ceiling element with underfloor heating. In this context, a heating cable is a passage for fluids intended to heat and / or cool the ceiling element as a mezzanine floor in its ready-to-use state.

[0064] The term "substantially" in this context means at least 70% of a length of the heating cable. Specifically, it means at least 80% of the length. For example, it means at least 90% of the length.

[0065] Heating cables arranged inside the cassette or in contact with the cassette are close to the floor covering and have a beneficial thermal effect. The result is a quickly noticeable heating or cooling effect.

[0066] For example, a metal heating cable, which is essentially in contact with a metal cassette, has a good and rapid heat transfer from the heating cable to the ceiling element and / or a floor covering arranged thereon.

[0067] The ceiling element optionally includes hangers. These allow a suspended ceiling to be attached below the supporting structure when the ceiling element is ready for use. The hangers provide additional sound insulation. In particular, the hangers include elastomer bearings.

[0068] A suspended ceiling can be attached to the supporting structure using hangers, allowing for additional sound insulation, both through the suspended ceiling itself (and its distance from the ceiling element) and through the hangers themselves, if they are designed accordingly. Hangers with elastomer bearings provide good sound insulation.

[0069] Optionally, the ceiling element can be designed to be so stable that it can be transported horizontally by road without damage. In particular, the ceiling element can be transported horizontally by road without damage.

[0070] The horizontal position of the ceiling element corresponds to the position of the ceiling element in ready-to-use condition.

[0071] The ceiling element is therefore specifically designed to be so stable that it can be transported horizontally by land (i.e. by truck, train and / or other land-based means of transport) and the ceiling element will not be damaged (i.e. its use will not be restricted).

[0072] In other words, stacked transport of ceiling elements is optionally possible, i.e., multiple ceiling elements can be stacked horizontally on top of each other. This allows for efficient and cost-effective transport without the need for complicated vertical arrangement and securing.

[0073] Optionally, the cover element, in its ready-to-use state, has a width of at least 1 m and a length of at least 3 m, projected onto a horizontal plane. For example, it has a width of at least 1.5 m and a length of at least 4.5 m. In particular, it has a width of at least 2 m and a length of at least 6 m.

[0074] The ceiling element can also have a maximum width of 2.4m and a maximum length of 6m.

[0075] Due to the size of the ceiling element, no special transport is required for truck transport. This allows for quick, efficient, and cost-effective transport without major inconvenience and without the need for special permits.

[0076] For example, a ceiling element has the size of an entire room ceiling.

[0077] A hallway can also be called a room.

[0078] A ceiling element can be the size of half a room's ceiling. It's possible for a ceiling element to be a third or a quarter of the size of a room's ceiling.

[0079] Optionally, the weight of the bulk material relative to the weight of the ceiling element is at least 30%. For example, it is at least 40%. In particular, it is at least 50%.

[0080] A high weight proportion of bulk material in the ceiling element means a high proportion of the ceiling element that behaves as a flexible screed and has the corresponding advantages.

[0081] By carefully selecting the weight proportion of bulk material in the ceiling element, its sound insulation properties can be adjusted to meet specific requirements. In other words, the ceiling element can be tailored to meet specific sound insulation requirements by adjusting the weight proportion of bulk material.

[0082] Optionally, the bulk material has a maximum grain size of 5 mm. For example, it has a maximum grain size of 3 mm. In particular, the maximum grain size is 2 mm.

[0083] The small grain size described above is advantageous for sound insulation: for the same volume, there are more grains that can move relative to each other. Small grains have a small mass per grain and are easy to move.

[0084] In particular, the bulk material is sand.

[0085] For example, the bulk material is ground glass. The bulk material can also be rock flour.

[0086] Other materials that can be used as flexible screed can also be used as bulk material. This requires that the bulk material be mobile, i.e., pourable. In flexible screed, individual components of the bulk material can move relative to each other without compacting into a configuration of immobility. Therefore, interlocking is only possible to a certain extent.

[0087] Round sand grains, such as desert sand, are particularly well suited as bulk material for the ceiling element. Desert sand is a good raw material for the ceiling element according to the invention, which is an advantage.

[0088] A mixture of the above-mentioned materials can also be used as bulk material.

[0089] For example, the bulk material has a specific density of 1200-1600 kg per cubic meter.

[0090] The ceiling element can include additional soundproofing elements, such as an impact sound insulation panel.

[0091] The ceiling element optionally includes an impact sound plate.

[0092] An impact sound panel can provide sound insulation or sound absorption for different wavelengths than the cassette. In this way, the impact sound panel and cassette can complement each other in terms of sound insulation. Specific frequency bands can be dampened using the cassette and / or the impact sound panel.

[0093] In particular, the impact sound plate is arranged below the cassette when the ceiling element is ready for use.

[0094] In particular, the impact sound plate is arranged above the supporting structure when the ceiling element is ready for use.

[0095] For example, when the ceiling element is ready for use, the impact sound plate is arranged between the supporting structure and the cassette.

[0096] The impact sound insulation board is particularly non-combustible and designed to be dimensionally and age-resistant. For example, the impact sound insulation board has a maximum thickness of 30 mm.

[0097] One object of the invention is a method for producing a transportable, prefabricated ceiling element for use as a mezzanine floor in multi-story residential buildings using drywall construction. The method comprises the following steps: providing a support structure which has a load-bearing capacity for the ceiling element in a ready-to-use state, providing a closed cassette which comprises and encloses bulk material for the purpose of sound insulation, wherein the bulk material is movably arranged in the cassette in the ready-to-use state of the ceiling element, releasably fastening the closed cassette to the support structure in a transportable fixed arrangement which changes to a ready-to-use arrangement by loosening the fastening, in which the closed cassette is movable relative to the support structure and is arranged above the support structure.

[0098] The properties and advantages of the features of such a transportable prefabricated ceiling element comprising a cassette with movable bulk material that is movable when ready for use have already been described above and also apply to the process for its production. The optional features of the device can also be provided or formed during the process for its production through a corresponding process step.

[0099] The subject matter of the invention is explained in more detail below with reference to preferred embodiments, which are illustrated in the accompanying drawings. Each of these drawings schematically shows: Figure 1 shows a cross section through a first embodiment of a ceiling element; Figure 2 shows a cross section through a second embodiment of a ceiling element; Figure 3 shows a cross section through a ceiling element analogous to Figure 2, additionally comprising a transport securing fastening; Figure 4 shows a cross section through the ceiling element made of Figure 3 with a transport lock attached to the transport lock fastening; Figure 5 a cross section through the ceiling element made of Figure 4 , whereby the transport lock has a continuous opening as a starting point for lifting the ceiling element.

[0100] In principle, identical parts in the figures are provided with identical reference symbols.

[0101] Figure 1 shows a cross-section through a first embodiment of a ceiling element 1. The ceiling element 1 comprises a cuboid-shaped supporting structure 2a. In this case, the supporting structure 2a is a construction made of wooden beams and has a load-bearing capacity for the entire ceiling element 1 when used as a mezzanine floor of a multi-story residential building. The direction of gravity G is indicated by an arrow and points from top to bottom.

[0102] A closed cassette 3 is arranged above the supporting structure 2a. The cassette 3 is located in Figure 1 on the supporting structure 2a. Cassette 3 is a watertight, cuboid-shaped metal box. Cassette 3 contains bulk material 4, which is fire-dried sand with a grain size of 0-2 mm. Bulk material 4 is freely movable within cassette 3 and can thus provide sound insulation. Sound waves can be absorbed and / or diffused within bulk material 4.

[0103] The ceiling element 1 in Figure 1is prefabricated and transportable. This means that the cassette 3 is arranged so that it can move relative to the supporting structure 2a when the ceiling element 1 is in a ready-to-use state. The cassette 3 is therefore movable relative to the supporting structure 2a when the ceiling element 1 is fully installed as a mezzanine. The relative mobility of the cassette 3 to the supporting structure 2a has a sound-insulating effect. The cassette 3 is arranged so that it can move laterally (as opposed to upwards and / or downwards) relative to the supporting structure 2a. In other words, the cassette 3 rests on the supporting structure 2a and can slide back and forth on it. At the same time, the ceiling element 1 is prefabricated and transportable, meaning it can be transported from a prefabrication site to a construction site of the multi-story residential building and used there without significant structural changes (brought into a ready-to-use state).

[0104] In Figure 2is a cross-section through a second embodiment of a ceiling element 1. In this second embodiment, the ceiling element 1 differs from the first embodiment in Figure 1 only by the supporting structure 2b, which, in contrast to the supporting structure 2a, Figure 1 is designed such that the cassette 3 is surrounded all around by the support structure 2b. The support structure 2b has upward projections at its ends, which extend as far upwards as the cassette 3 projects above the support structure 2b. In other words, the support structure 2b forms a trough-shaped depression on its upwardly directed surface, in which the cassette 3 lies. The cassette 3 is framed laterally by the support structure 2b, but is spaced apart from the support structure 2b on each side of the cassette 3. In this way, the cassette 3 can move laterally relative to the support structure 2b. A Figure 2A floor covering not shown and not included in the ceiling element 1 can be installed by resting the floor covering on an upwardly directed side of the cassette 3 and also on the frame surrounding the cassette 3 by the supporting structure 2b.

[0105] Figure 3 shows a cross section through a ceiling element 1 analogous to Figure 2 . In addition to ceiling element 1 made of Figure 2 includes the ceiling element 1 in Figure 3 Transport safety fasteners 11. The transport safety fasteners 11 are designed here as metal inserts with internal threads.

[0106] In Figure 4 is a cross section through the ceiling element 1 from Figure 3, wherein additional transport locks 12 are shown, which are fastened to the transport lock fastenings 11. In this embodiment, the transport locks 12 belong to the transportable prefabricated ceiling element 1 and are removed before use of the ceiling element 1. The transport locks 12 are screwed to the internal threads of the transport lock fastenings 11 and fix the cassette 3 relative to the supporting structure 2b. The ceiling element 1 in Figure 4 is in a transport configuration in which the ceiling element 1 can be transported without the cassette 3 being able to move relative to the supporting structure 2b. If the transport locks 12 are released from the transport lock fastenings 11 and removed from the ceiling element 1, the cassette 3 can move relative to the supporting structure 2b. The ceiling element 1 is then in a ready-to-use state, i.e., in a usage configuration.

[0107] Figure 5 shows a cross section through the ceiling element made of Figure 4 , wherein the transport securing devices 12 each have a through-opening serving as attachment points 13 for lifting the ceiling element 1. The ceiling element 1 can be lifted, for example, by a crane, by means of carrying straps guided through the attachment points 13 or by hooks or shackles attached thereto. In this way, the ceiling element 1 can be moved, stacked, and positioned safely and easily. This can be advantageous at the production site, on the construction site, at storage locations, and / or during transport.

Claims

1. Ceiling element (1) which is prefabricated in a transportable form for use as an intermediate floor in multi-storey dry construction, wherein the ceiling element (1) comprises a supporting structure (2a, 2b) and a closed cassette (3), wherein the supporting structure (2a, 2b) has a load-bearing capacity for the ceiling element (1) in a ready-to-use state, for the ready-to-use state of the ceiling element (1), the closed cassette (3) is arranged above the supporting structure (2a, 2b) and the closed cassette (3) comprises and encloses bulk material (4), wherein the bulk material (4) is movably arranged in the cassette (3) for the ready-to-use state of the ceiling element (1), characterised in that the closed cassette (3) comprises the bulk material (4) for the purpose of sound insulation, and, for the ceiling element (1) to be in the ready-to-use state, the closed cassette (3) is arranged so as to be movable relative to the supporting structure (2a, 2b).

2. Ceiling element (1) according to claim (1), characterised in that the ceiling element (1) comprises a transport securing device fastening (11) which allows a transport securing device (12) to be fastened to the ceiling element (1), thereby creating a transport configuration of the ceiling element (1) in which the cassette (3) is fixed relative to the supporting structure (2a, 2b), and wherein loosening the transport securing device (12) causes the ceiling element (1) to move from the transport configuration into a use configuration.

3. Ceiling element (1) according to claim 1 or 2, characterised in that the transport securing device fastening (11) is arranged at least partially on the ceiling element (1) when the ceiling element (1) is ready for use.

4. Ceiling element (1) according to one of claims 1 to 3, characterised in that, when the ceiling element (1) is in the ready-to-use state, an upper side of the cassette (3) is designed as a support for a floor covering.

5. Ceiling element (1) according to one of claims 1 to 4, characterised in that, when projected onto a horizontal plane, an area of the cassette (3) is at least 70% of the area of the ceiling element (1), for example at least 80%, and in particular at least 90%.

6. Ceiling element (1) according to one of claims 1 to 5, characterised in that the ceiling element (1) has a wall fastening device which allows a force-fitting connection of the supporting structure (2a, 2b) to a wall which, when in ready-to-use state, adjoins the ceiling element (1).

7. Ceiling element (1) according to one of claims 1 to 6, characterised in that the cassette (3) is designed to be watertight.

8. Ceiling element (1) according to one of claims 1 to 7, characterised in that the ceiling element (1) comprises a heating pipe which is arranged essentially in the cassette (3) or essentially in contact with the cassette (3), wherein the heating pipe is formed in particular in the form of metal tubes.

9. Ceiling element (1) according to one of claims 1 to 8, characterised in that the ceiling element (1) comprises hangers which, when the ceiling element (1) is in ready-to-use state, allow a suspended ceiling to be attached below the supporting structure (2a, 2b) and serve as additional sound insulation, wherein the hangers in particular comprise elastomer bearings.

10. Ceiling element (1) according to one of claims 1 to 9, characterised in that the ceiling element (1) is designed to be stable in such a way that the ceiling element (1) can be transported by land without damage in a horizontal position, and in particular can be transported by land without damage in horizontal stacks.

11. Ceiling element (1) according to one of claims 1 to 10, characterised in that, when in ready-to-use state, the ceiling element (1) has a width of at least 1 m and a length of at least 3 m when projected onto a horizontal plane, for example a width of at least 1.5 m and a length of at least 4.5 m, and in particular a width of at least 2 m and a length of at least 6 m.

12. Ceiling element (1) according to one of claims 1 to 11, characterised in that the weight of the bulk material (4) relative to the weight of the ceiling element (1) is at least 30%, for example at least 40% and in particular at least 50%.

13. Ceiling element (1) according to one of claims 1 to 12, characterised in that the bulk material (4) has a grain size of at most 5 mm, for example at most 3 mm and, in particular, at most 2 mm.

14. Ceiling element (1) according to one of claims 1 to 13, characterised in that the ceiling element (1) comprises an impact sound insulation panel.

15. Method for manufacturing a transportable, prefabricated ceiling element (1) according to one of claims 1 to 14 for use as an intermediate floor in multi-storey dry construction, comprising the following steps: - providing a supporting structure (2a, 2b) which has a load-bearing capacity for the ceiling element (1) in a ready-to-use state, - providing a closed cassette (3) which comprises and encloses bulk material (4) for the purpose of sound insulation, wherein the bulk material (4) is movably arranged in the cassette (3) in the ready-to-use state of the ceiling element (1), - detachably fastening the closed cassette (3) to the supporting structure (2a, 2b) in a transportable fixed arrangement, which changes to a ready-to-use arrangement by releasing the fastening, in which the closed cassette (3) is movable relative to the supporting structure (2a, 2b) and arranged above the supporting structure (2a, 2b).