JOINT-SEALING ELEMENT FOR MOVEMENT JOINTS AND SEALING ARRANGEMENT WITH SUCH A JOINT-SEALING ELEMENT

FIELD OF THE INVENTION

[0001]The present invention relates to a joint-sealing element for fireproof sealing of movement joints in a building construction and/or on a building structure, especially for sealing against fire and smoke. In particular, the invention relates to smokeproof and/or fireproof sealing of connecting joints in drywalls, especially of high movement expansion joints.

BACKGROUND OF THE INVENTION

[0002]Connecting joints are usually formed when different building parts meet. Connecting joints are found in the region of connection to the inter-story ceiling, to the floor and to the massive walls. Due to weight loading and/or thermal influences, the ceiling in buildings may be forced upward or downward. To prevent damage to the drywall, the upper connecting joint in this case is made as an expansion joint. Thus joints for creating discontinuities in building parts in order to prevent stress cracking are known as expansion joints. The ceiling profile is made in such a way that a relative movement between ceiling profile and the vertical wall components is possible.

[0003]Furthermore, optical requirements are imposed on this connecting joint, since the joint is intended to remain visible after completion of the building construction and/or of the building structure and to complete the architectural building style with integrated fire-protection requirements.

[0004]In general, a channel profile, which is part of the studwork, is fastened to the connection building parts of the building construction and/or of the building structure. The gypsum boards themselves are attached at a well-defined spacing to the connecting building part. Usually sealing of the system is provided in the gap between gypsum board and ceiling. For this purpose, either a suitable sealing compound is introduced or else the gap is filled with mineral wool and provided at the surface with a sealing layer. In both cases, the material present in the joint presents relatively strong resistance to movement, with the consequence that comparatively large joint widths are necessary in order to achieve adequate movement absorption.

[0005]In particular, for residential and commercial high-rise construction, partition walls are used to devise corridors and occupancy rooms. These partition walls can be categorized by load bearing or non-load bearing. Load bearing walls are considered “static” and will not result in building movement. Non-load bearing walls will see deflection from the floors above and below due to multiple different loads due to occupancy. These deflections are described and listed in section 1604 of the International Building Code (IBC). The combination of these deflections will cause the top of wall joint, also called deflection gap, to either contract or expand. These deflections are highly dependent on the slab construction but also the distance between supports. Fire-rated top of wall joints must provide fire protection while experiencing these deflections. There are for example foam solutions that are compressed by the drywall boards, allowing only minimal movement absorption.

[0006]Further, sealing of the gap with existing sealing compound has some disadvantages. It is particularly laborious, and in the course of time the sealing tends to crack when overloaded. Furthermore, sealing can be performed only after the gypsum boards have been mounted, and it requires access to the finished drywall from both sides. Furthermore, this procedure is error-prone, since the user himself or herself must dose the correct quantity of material in order to seal the gap adequately. Above and beyond this, the drywall builder must make the width of the joint correspond to the material and expansion properties of the sealing compound. During installation of the sealing compound, nothing but the joint can be filled. During expansion of the gap, it must be ensured that the sealing compound adheres sufficiently strongly to the underlying surface and that it is able to absorb the tensile forces that develop. Frequently this is not the case, and the danger exists that the sealing compound will become detached from the underlying surface or that the sealing compound itself will be overloaded and tear. Due to the limited expansion and compression capability of the sealing compound, it is very important to ensure adequately large dimensioning of the spacing between gypsum board and ceiling. This is frequently underestimated, and so adequate imperviousness often cannot be guaranteed during use of customary sealing compounds.

[0007]Some further approaches exist for sealing of joints, especially joint cords or joint sprays, which to some extent suffer from the same disadvantages as have been described for sealing compounds.

[0008]U.S. Pat. No. 7,240,905 B 1 describes a movable joint-sealing element, but this is not suitable for fireproof sealing of a connecting joint. US 2013/0091790 A 1 describes a joint-sealing element that is fastened between channel profile and gypsum board, but due to the geometric configuration and complex mounting is not suitable for application compensating high movement. U.S. Pat. No. 7,654,049 B 2 describes a plastic profile as a cover trim for a ceiling joint, but without fire-protection function.

[0009]However, all of the systems mentioned above have the disadvantage that they do however address the International Building Code (IBC, in particular section 1604), but are limited in the extend of movement they can compensate, i.e. are not able to compensate larger movements, and at the same time pass the UL2079 test, especially pass the hose stream portion of the UL2079 test, thereby compensate high movement of the joint.

[0010]The object of the invention is therefore to provide a sealing solution that provides for a free movement of the drywall boards over a joint sealing element, thereby complying with Section 1604 of the International Building Code (IBC) and passing the UL 2079 test, especially passing the hose stream portion of the UL2079 test, thereby compensating movement of the joint. In particular, it is an object to provide a solution that also addresses movement compensation for high movement joints.

[0011]The object of the invention is further to provide a joint-sealing element that avoids the disadvantages of the known systems, that in particular is easier and safer to use, simplifies the mounting of further building parts, ensures good sealing as soon as it is applied and ensures excellent imperviousness with maximum absorption of movement, and at the same time completes the architectural building style. In particular, it is an object of the present invention to provide a joint-sealing element which is suitable for fireproof sealing of a joint on a building construction and/or on a building structure, especially for fireproof sealing of a high movement joint between a first building part and a second building part, with which improved evening out of irregularities, improved installation, and improved sealing can be achieved.

[0012]A further object of the present invention is to provide a method for fireproof sealing of a movement joint, which can be accomplished simply, is reliable with little work effort and leads without defects to sealing of a movement joint, between two juxtaposed building parts of a building construction and/or of a building structure.

[0013]Yet another object of the present invention is to provide an arrangement which, in the event of fire, permits better sealing of a joint, between two building parts, especially between a drywall and a connecting building part, such as a wall, a ceiling or a floor, and thus provides better and durable sealing against smoke and better and durable fire protection, and can be mounted reliably, free of defects with little work effort and compensating high movement, especially high movement.

[0014]This and further objects that will become apparent from the description of the invention hereinafter are solved by the present invention, as described in the independent claims. The dependent claims relate to preferred embodiments.

SUMMARY OF THE INVENTION

[0015]The present invention relates to a joint-sealing element for fireproof sealing of a joint on a building construction and/or on a building structure, especially for fireproof sealing of a movement joint between a first building part and a second building part, with a stiffening component and a sealing material connected to the stiffening component, wherein the sealing material comprises an elastomeric material selected from ethylene propylene diene monomer rubber, styrene-butadiene rubber, silicone rubber, highly chlorinated polyvinyl chloride, and polymers based on polysiloxane,. The present invention further relates to a method for fireproof sealing of a movement joint between two juxtaposed building parts of a building construction and/or of a building structure with at least one first building part, one second building part and the inventive joint-sealing element.

[0016]The present invention further relates to a sealing arrangement for fireproof sealing of a movement joint between two juxtaposed building parts of a building construction and/or of a building structure with at least one first building part, one second building part and the joint-sealing element, wherein the sealing profile is positioned in the joint, and is configured to seal the joint from the outside.

[0017]Some other objects and features of this invention are obvious and some will be explained hereinafter. In particular, the subject matter of the present invention will be described in detail by reference to the following figures.

BRIEF DESCRIPTION OF THE FIGURES

[0018]FIG. 1 shows a side view of a joint-sealing element according to one embodiment of the present invention, wherein the joint-sealing element comprises a stiffening component and a sealing material connected to the stiffening component.

[0019]FIG. 2 shows a sketched unexploded view of a joint-sealing element according to one embodiment of the present invention, wherein the comprises a stiffening component and a sealing material connected to the stiffening component.

[0020]FIG. 3 shows a front view of a sealing arrangement with a joint-sealing element according to one embodiment of the present invention, including a wall and a metal deck joint.

[0021]FIGS. 4, 5 and 6 show a side view of a sealing arrangement with a joint-sealing element according to one embodiment of the present invention, including a dry wall

DETAILED DESCRIPTION OF THE INVENTION

[0022]The following terms are used within the scope of the present invention:

[0023]Within the scope of the present invention, the term “stiffening component” means that the element used in the joint-sealing element is made of a rigid material and cannot be easily bent or deformed.

[0024]The terms “with” and “have” are intended to be inclusive and mean that elements other than those cited may also be meant.

[0025]Within the scope of the present invention, the term “high movement” means that, the joint sealing element must compensate high movement of at least more than +/−¾ inch, preferably of more than +/−1 inch, most preferably of more than +/−1.5 inch or higher of the joint. “Positioned in the joint” means that the joint-sealing element is disposed within the joint, especially on a header track of a drywall construction.

[0026]As used within the scope of the present invention, the singular forms “one”, “a” and “an” also include the corresponding plural forms, unless something different can be inferred unambiguously from the relationship. Thus, for example, the term “one” is intended to mean “one or more” or “at least one”, unless otherwise indicated.

[0027]In one aspect, the present invention relates to a joint-sealing element for fireproof sealing of a joint on a building construction and/or on a building structure, especially for fireproof sealing of a high movement joint between a first building part and a second building part, with a stiffening component and a sealing material connected to the stiffening component, wherein the sealing material comprises an elastomeric material selected from ethylene propylene diene monomer rubber, styrene-butadiene rubber, silicone rubber, highly chlorinated polyvinyl chloride, polymers based on polysiloxane, preferably an elastomeric material based on polysiloxane, most preferably silicone.

[0028]In a further aspect, the present invention relates to a method for fireproof sealing of a movement joint between two juxtaposed building parts of a building construction and/or of a building structure with at least one first building part, one second building part and the inventive joint-sealing element.

[0029]In yet a further aspect, the present invention relates to a sealing arrangement for fireproof sealing of a movement joint between two juxtaposed building parts of a building construction and/or of a building structure with at least one first building part, one second building part and the joint-sealing element, wherein the sealing profile is positioned in the joint, and is configured to seal the joint from the outside.

[0030]It has been discovered that the inventive joint-sealing element is suitable for the application in movement joints, in particular high movement joints. The inventive joint-sealing element allows for safely sealing, in simple manner, a building-structure joint between two adjoining building parts, especially against smoke and fire, thereby complying with 1604 of the International Building Code (IBC) and passing the UL 2079 test, especially passing the hose stream portion of the UL2079 test.

[0031]For the joint-sealing element to be able to fulfill its function, the joint-sealing element must comprise a stiffening component.

[0032]Therefore it is an objective of the present invention to describe the joint-sealing element. Furthermore, it is an objective of the present invention to describe the positioning of the joint-sealing element, especially a sealing arrangement as well as a method for fireproof sealing of a movement joint between two juxtaposed building parts of a building construction and/or of a building structure with at least one building part and one second building part.

[0033]The inventive joint-sealing element for fireproof sealing of a joint on a building construction and/or on a building structure, especially for fireproof sealing of a high movement joint between a first building part and a second building part, wherein the joint-sealing element comprises a stiffening component and a sealing material connected to the stiffening component, wherein the sealing material comprises an elastomeric material selected from ethylene propylene diene monomer rubber, styrene-butadiene rubber, silicone rubber, highly chlorinated polyvinyl chloride, polymers based on polysiloxane, preferably an elastomeric material based on polysiloxane, most preferably silicone. In particular, the inventive joint-sealing element is suitable for compensating high movement of at least more than +/−¾ inch, preferably of more than +/−1 inch, most preferably of more than +/−1.5 inch or higher of the joint.

[0034]According to the present invention, the sealing material used in the present invention is based on an elastomeric material selected from ethylene propylene diene monomer rubber, styrene-butadiene rubber, silicone rubber, highly chlorinated polyvinyl chloride, polymers based on polysiloxane, preferably an elastomeric material based on polysiloxane, most preferably silicone. It has been surprisingly found that a material based on an elastomeric material selected from ethylene propylene diene monomer rubber, styrene-butadiene rubber, silicone rubber, highly chlorinated polyvinyl chloride, polymers based on polysiloxane, preferably an elastomeric material based on polysiloxane, most preferably silicone, is especially suitable for fire-rated applications due to its noncombustible fire-resistant properties. At high temperatures a material based on a polysiloxane does not melt but rather hardens, thereby creating a fire barrier in the high movement joint. Further, the material based on an elastomeric material selected from ethylene propylene diene monomer rubber, styrene-butadiene rubber, silicone rubber, highly chlorinated polyvinyl chloride, polymers based on polysiloxane, preferably an elastomeric material based on polysiloxane, most preferably silicone, provides flexibility when it is not under fire conditions enabling easy mounting within a joint. Another advantage od such a material is that it does not need to comprise any further fire-resistant additives and needs to be intumescent. In a most preferred embodiment, the sealing material is silicone.

[0035]However, it is possible that sealing materials based on an elastomeric material are so soft as long as elevated temperatures are not achieved, causing difficulties in keeping it in the original orientation. The inclusion of a stiffening component therefore provides rigidity to the sealing material to an activation point of the sealing material, in particular under fire conditions.

[0036]The stiffening component used in the present invention is a preferably a rigid fabric material, foam material, woven material, nonwoven material, metal material, film material, mesh material, composite material, pin, bolt or sheet material or mixture thereof, more preferably is a rigid metal material, most preferably a rigid thin sheet metal material.

[0037]The stiffening component functions as a base material allowing easy disposal of the sealing material. It has also been found that the stiffening component keeps the profile vertically upright during a fire event as well as it creates a barrier that assists in blocking the water pressure required to pass the hose stream portion of the UL2079 test. When installing the material based on an elastomeric material, the material may lose its rigidity and fall over in the joint. This disadvantageously creates a direct passage for heat, smoke and fire to pass through. The inclusion of this stiffening component will provide the rigidity to the sealing material disposed of the joint-sealing element. Another advantage of the stiffening component is the provision of a subfunction to the product design by providing a surface for the drywall to move across rather than damaging the sealing material. The stiffening component may be made in one piece from one material or in multiple pieces, even from different materials. Preferably the stiffening component is made in one piece.

[0038]The stiffening component is preferably oriented perpendicular in the direction of a longitudinal extent of the joint. Most preferably the stiffening component is placed into the joint-sealing element perpendicular in the direction of a longitudinal extent of the joint-sealing element.

[0039]Preferably, the stiffening component extends at least about 50% across a width of the joint-sealing element, more preferably about 80% across a width of the joint-sealing element.

[0040]Preferably, the joint-sealing element has a hollow profile, allowing the shape of the joint-sealing element to collapse behind the building structure, in particular behind the drywall and hence creating a bubble-feature in the joint. This bubble-feature, also called air gap, enables passing the UL2079 fire requirements. In particular, the utilization of a noncombustible material based on an elastomeric material selected from ethylene propylene diene monomer rubber, styrene-butadiene rubber, silicone rubber, highly chlorinated polyvinyl chloride, polymers based on polysiloxane, preferably an elastomeric material based on polysiloxane, most preferably silicone, creates an air gap between the header track and the cold surface. This air gap is created by molding the noncombustible material in a specific shape, which is designed to prevent from collapsing under its own weight. The preferred shape of the inventive joint-sealing element is a form that corresponds to a “D”-shape.

[0041]This hollow “D”-profile shape also allows the material to flex and compress when the drywall boards move vertically due to building deflections. When the head of wall joint contracts, the drywall boards will slide over the joint-sealing element. This will cause the profile to compress/collapse behind the drywall and maintain the air gap in the joint.

[0042]The stiffening component is preferably located on the vertical portion of the “D”-shape facing the cold side. This stiffening component is preferably molded into the elastomeric sealing material

[0043]It is also possible that, a top layer may be used on the outer surface of the joint-sealing element to allow for customers to paint the outer surface for aesthetic purposes. A suitable top layer may be in the form of a plastic film or fabric material, foam material, woven material, nonwoven material, metal material, film material, mesh material, composite material or mixture thereof, most preferably in the form of a plastic film.

[0044]In a particularly preferred embodiment of the inventive joint-sealing element, the stiffening component is a thin metal sheet, the sealing material is silicone and the joint-sealing element has the form of a hollow “D”-profile shape.

[0045]The joint-sealing element of the present invention, especially the region where the stiffening component is located, preferably has at least one fastening region oriented in the direction of the longitudinal extent of the joint for fastening of the joint-sealing element on a construction element of the building construction and/or of the building structure. Fastening may occur by adhesives, nails, screws, clamps and dowels. In particular, the carrier element can be positioned flush a structural framework, such as a metal header track. Positioning of the joint-sealing element may also be achieved by fastening means, for example in the form of an adhesive layer, especially a self-adhesive layer, in the form of interlocking or frictionally acting means, such as suitable profiled shapes or putty material, by means of a separately applicable adhesive or the like. Positioning of the inventive joint-sealing element may be applied over an area or only at spots.

[0046]Preferably the at least one fastening region of the joint-sealing element is in the form of an adhesive layer. This adhesive is used to secure the joint-sealing element to a header track of the drywall construction. The adhesive layer is only temporary during the construction process. Once the drywall is secured to the studs, it will pinch the joint-sealing element to the header track. This “pinching” will provide the securement of the joint-sealing element during a fire event where the adhesive will lose its adhesion properties.

[0047]In a most preferred embodiment of the inventive joint-sealing element, the stiffening component is a thin metal sheet, the sealing material is silicone and the joint-sealing element has the form of a hollow “D”-profile shape, wherein the fastening region is an adhesive layer and the top layer is a plastic film.

[0048]The joint-sealing sealing element may be prefabricated, for example by well-defined cutting to size, extrusion, molding or pressing of suitable materials together, preferably by molding.

[0049]The inventive method for fireproof sealing of a movement joint between two juxtaposed building parts of a building construction and/or of a building structure with at least one first building part, one second building part, a structural framework and the inventive joint-sealing element is characterized in that, in a first step, the joint-sealing element is positioned on the structural framework, especially a metal header track, and, in a second step, is fastened. Preferably the first step comprises positioning by adhesives, screws, dowels, clamps and nails, most preferably adhesives. Positioning of the joint-sealing element may also be achieved by fastening means, for example in the form of an adhesive layer, especially a self-adhesive layer, in the form of interlocking or frictionally acting means, such as suitable profiled shapes or putty material, by means of a separately applicable adhesive or the like. Positioning of the inventive joint-sealing element may be applied over an area or only at spots. Preferably the second step comprises fastening and securing the first building part, such as a drywall, to the metal structural framework, such as headers or studs.

[0050]The dimension and the materials of the joint-sealing element are chosen to correspond to the planned use of the joint-sealing element.

[0051]The invention will be described in more detail hereinafter on the basis of application of the joint-sealing element on a drywall of a sealing arrangement for a drywall studwork, without restricting the scope of protection hereby.

[0052]To establish an inventive sealing arrangement for fireproof sealing of a movement joint between two juxtaposed building parts of a building construction and/or of a building structure with at least one first building part, one second building part, a structural framework and the inventive joint-sealing element, the sealing profile is positioned in the joint, preferably on the structural framework, and is configured to seal the joint from outside.

[0053]According to the present invention, the first building part is preferably a drywall, preferably a gypsum board, the second building part is a wall, a ceiling or a floor, preferably a ceiling, and the structural framework is a metal structural framework, such as a metal header track or stud, preferably is a metal header track of a building construction and/or of a building structure. According to the present invention, the inventive joint-sealing element is positioned and fastened after the drywall studwork has been finished.

[0054]According to the invention, the joint-sealing element can be applied on all kinds of connecting joints in which one building part meets another building part. Accordingly, the joint-sealing element can be applied on all profiles, even closed profiles or wooden beams, which must be sealed at a connecting face.

[0055]A particularly preferred application of the joint-sealing element relates to sealing the profiles in dry construction, wherein the first building part is a drywall, for example one or more gypsum boards, and the second building part is a wall, a ceiling or a floor of a building element, for example a masonry structure or concrete building element. A further building part is a profile for positioning and fastening of the gypsum board, wherein it may be any of the profiles commonly used for dry construction, regardless of whether it has a slotted or non-slotted web or slotted or non-slotted flanges. In order to permit vertical movement of the gypsum boards, for example in the event of an earthquake, the gypsum boards are mounted to be vertically movable at a spacing from a wall, a floor or a ceiling. Thereby a space (also referred to as joint herein) is formed between the gypsum board and the wall, the floor or the ceiling. This joint is filled by the sealing profile of the joint-sealing element, so that the sealing profile seals the joint against smoke, heat and fire.

[0056]Without restricting the scope of protection of the invention, the invention will be described in more detail on the basis of special embodiments of the joint-sealing element as well as its positioning. In these embodiments, the joint-sealing element is applied to the connecting joints in drywalls. It is clear to the person skilled in the art that the joint-sealing element may also be applied to building-structure joints of other types.

[0057]The above-described sealing elements and arrangements can also be utilized at a gap at the bottom of the wall assembly and at a gap at the side of the wall assembly. Preferably, each such assembly is similar to the head-of-wall assemblies described above. In particular, preferably, each such assembly creates a fire-resistant structure at the respective wall gap.

[0058]A preferred embodiment of an inventive joint-sealing element 1 is shown in FIG. 1. Joint-sealing element 1 has a sealing material 3, which is connected to the stiffening component 2. Sealing material 3 is silicone and surrounding the stiffening component. The stiffening component 2 shown in FIG. 1 is in the form of a thin metal sheet. The joint-sealing element 1 has a hollow “D”-profile shape 4.

[0059]FIG. 2 shows a sketched unexploded view of a joint-sealing element according to one embodiment of the present invention, wherein the joint-sealing element 1 has a sealing material 3, which is connected to the stiffening component 2. Sealing material 3 is silicone and surrounding the stiffening component. The stiffening component 2 shown in FIG. 2 is in the form of a thin metal sheet. The joint-sealing element 1 has a hollow “D”-profile shape 4.

[0060]Stiffening component 2 has a fastening region (not shown in the figures) oriented in the direction of the longitudinal extent of the joint for fastening of joint-sealing element 1 to a construction element of a building construction and/or of a building structure. Fastening region of stiffening component 2 is provided as an adhesive layer.

[0061]FIG. 3 shows a sealing arrangement with a joint-sealing element 1 according to one embodiment of the present invention, including a wall and a metal deck joint. The sealing arrangement in FIG. 4 for fireproof sealing of a joint between two juxtaposed building parts of a building construction and/or of a building structure with at least one first building part 6, one second building part 7 and a joint-sealing element 1 shows that sealing element 1 is positioned in the joint, and is configured to seal the joint from the outside. In particular, for fireproof sealing of the gap between a ceiling 7, structural framework 8 (not shown) of a drywall and wall 6, i.e. gypsum board, joint-sealing element 1, in the first step, is positioned in the joint on the structural framework, in a second step, is fastened. Thereby sealing element 1 seals the gap between ceiling 7 and structural framework 8 as well as the gap between ceiling 7 and gypsum board 6. The sealing element 1 has a fastening region oriented in the direction of the longitudinal extent of the joint for fastening of joint-sealing element 1 on a construction element 8.

[0062]FIGS. 4, 5 and 6 show further sealing arrangements with joint-sealing elements 1 according to various embodiments of the present invention. In particular, the figures show positionings of the inventive joint-sealing element 1 in connection joints in drywalls arrangement, similar to what was described for FIG. 3. FIG. 6 shows that this hollow “D”-profile shape also allows the material to flex and compress when the drywall boards move vertically due to building deflections. When the head of wall joint contracts, the drywall boards will slide over the joint-sealing element. This causes the profile to compress/collapse behind the drywall and maintain the air gap in the joint. The stiffening component is located on the vertical portion of the “D”-shape facing the cold side.

[0063]As it has been shown from the foregoing explanations, the inventive joint-sealing element is particularly suitable for safely sealing a building-structure movement joint between two adjoining building parts in simple manner, especially against smoke and fire. In particular, the inventive joint-sealing element is suitable for compensating high movement of at least more than +/−¾ inch, preferably of more than +/−1 inch, most preferably of more than +/−1.5 inch or higher of the joint.

[0064]The joint-sealing element of the present invention is particularly suitable for the application in movement joints, especially in high movement joints. The inventive joint-sealing element allows for safely sealing, in simple manner, a building-structure joint between two adjoining building parts, especially against smoke and fire, thereby complying with 1604 of the International Building Code (IBC) and passing the UL 2079 test, especially passing the hose stream portion of the UL2079 test.

[0065]The invention makes it possible to provide a joint-sealing element with fire-protection function for expansion joints and at the same time completes the architectural building style with integrated fire-protection requirements with an appealing appearance.

[0066]The method for sealing a movement joint allows simple execution and, with little working effort, leads reliably and without defects to fireproof sealing of a joint between two juxtaposed building parts of a building construction and/or of a building structure. In particular, the present invention permits a one-stage installation process almost without tools, wherein fire protection and optically appealing sealing are installed in one working process. Furthermore, even a further sealing compound is not needed for the installation process to secure a fully functioned system.

[0067]By means of the invention, therefore, safe and reliable fireproof sealing of movement joints, especially high movement joints, between two building parts is achieved, especially between a gypsum board of a drywall studwork and a building part adjoining it, such as a ceiling, wall or floor.

[0068]It has been shown that, in the event of fire, the sealing arrangement permits better sealing of a movement joint between two building parts, especially between a drywall and a connecting building part, such as a wall, a ceiling or a floor, and in this way better and durable sealing against sound and/or smoke as well as better and durable fire protection can be provided, and it can be mounted reliably and free of defects with little working effort.

[0069]In view of the foregoing, the objects of the invention have been solved. Since various modifications can be made to the joint-sealing element described hereinabove, without departing from the scope of the invention, it is intended that all subject matters contained in the foregoing description be interpreted as illustrative and not in a restrictive sense.