US20170306615A1

US20170306615A1 - Joint-sealing element with predetermined geometry and sealing arrangement with such a joint-sealing element

Info

Publication number: US20170306615A1
Application number: US15/517,404
Authority: US
Inventors: Manfred Klein; Christian Foerg; Mario Paetow; Markus Koegler
Original assignee: Hilti AG
Current assignee: Hilti AG
Priority date: 2015-02-13
Filing date: 2016-02-05
Publication date: 2017-10-26
Also published as: WO2016128300A1; EP3256662B1; SG11201705262VA; US10519652B2; EP3256662B2; US10982435B2; US20180044913A1; SG11201705631WA; CA2962191A1; EP3256662A1; CA2972146C; CA2971953C; CA2971953A1; CA2972146A1; EP3256660B1; EP3256660A1; WO2016128301A1; EP3256661A1; US20180010333A1; WO2016128304A1

Abstract

A joint-sealing element for sealing building-structure joints is described, especially for sealing against sound and/or smoke and if necessary against fire. In particular, a joint-sealing element for sealing on a building construction and/or on a building structure is described, especially for sealing a joint between a first building part and a second building part, with a carrier element and a sealing profile disposed on this carrier element, wherein the disposed sealing profile has a predetermined geometry.

Furthermore, a sealing arrangement as well as a method for sealing building-structure joints is described, especially for sealing against sound and/or smoke and if necessary against fire, with such a joint-sealing element.

Description

FIELD OF THE INVENTION

The present invention relates to a joint-sealing element for sealing joints on a building construction and/or on a building structure, especially for sealing against sound and smoke and if necessary against fire. In particular, the invention relates to acoustic, smokeproof and/or fireproof sealing of connecting joints in drywalls, especially of expansion joints.

BACKGROUND OF THE INVENTION

Connecting joints are usually formed when different building parts meet. Connecting joints are found in the region of connection to the ceiling of a building level, to the floor and to 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.
In general, a channel profile constituting part of the studwork is fastened to the connecting building parts. 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.
In particular, sealing of the gap with sealing compound has some disadvantages. The application of a conventional sealing compound in order to achieve sufficient sealing of the gap is impacted very severely by long curing times, depending on curing temperature as well as dosing of the correct quantity. 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 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. In the case of a narrower gap, the sealing compound can be compressed to only a limited extent, because of its material properties, and the danger exists that it will be forced out of the gap if the joint is incorrectly dimensioned. Due to the limited expansion and compression capability of the sealing compound (max. +1-25%), 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.
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. In particular, a joint-sealing element is known from U.S. Pat. No. 8,584,415 B2, but it consists of a hollow rubber profile and so is characterized by poor compressibility and thus deformability. Such hollow rubber profiles are compressed in upward direction during installation with the gypsum board, which among other problems may lead to poor sealing at the abutting surface.
The object of the invention is therefore to provide a joint-sealing element that avoids the disadvantages of the known materials, 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. In particular, it is an object of the present invention to provide a joint-sealing element that can be readily compressed and deformed, and with which improved evening out of irregularities, improved installation, e.g. simple laying even around a corner, and improved sealing, e.g. when several joint-sealing elements are abutted against one another, can be achieved.
A further object of the present invention is to provide a method for sealing a joint that can be accomplished simply, is reliable with little work effort and leads without defects to sealing of a joint between two juxtaposed building parts of a building construction and/or of a building structure.
Yet another object of the present invention is to provide an arrangement that, in the event of fire, permits better sealing of the 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 sound and/or smoke and if necessary better and durable fire protection, and can be mounted reliably and free of defects with little work effort.
This and further objects that will become apparent from the description of the invention hereinafter are achieved by the present invention, as described in the independent claims. The dependent claims relate to preferred embodiments.

SUMMARY OF THE INVENTION

The present invention relates to a joint-sealing element for sealing a joint on a building construction and/or on a building structure, especially for sealing a joint between a first building part and a second building part, with a carrier element and a sealing profile disposed on this carrier element, wherein the disposed sealing profile has a predetermined geometry. Preferably, the sealing profile is positioned on the outer periphery of the carrier element.
The present invention further relates to a method for sealing a 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.
The present invention further relates to a sealing arrangement for sealing a 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 described in the foregoing, wherein the sealing profile is positioned in the lower region of the joint and is configured to seal the joint from the outside.
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

FIG. 1a shows a sketched front view of a joint-sealing element according to one embodiment of the present invention, wherein the sealing profile has a solid profile and round profile and the carrier element has a fastening region.

FIG. 1b shows a cross section through a joint-sealing element according to one embodiment of the present invention, wherein the sealing profile has a solid profile and round profile and the carrier element has a fastening region.

FIG. 2a shows a sketched front view of a joint-sealing element according to one embodiment of the present invention, wherein the sealing profile has a solid profile and wedge profile and the carrier element has a fastening region.

FIG. 2b shows a cross section through a joint-sealing element according to one embodiment of the present invention, wherein the sealing profile has a solid profile and wedge profile and the carrier element has a fastening region.

FIGS. 3a and 3b show positionings of joint-sealing elements according to various embodiments of the present invention on a first building part.

FIGS. 4a to 4c show the stepwise procedure for sealing a joint between two juxtaposed building parts of a building element by means of the embodiment of an inventive joint-sealing element shown in FIGS. 1a and 1 b.

FIGS. 5a to 5c show the stepwise procedure for sealing a joint between two juxtaposed building parts of a building element by means of the embodiment of an inventive joint-sealing element shown in FIGS. 2a and 2 b.

FIG. 6 shows a sketched sealing arrangement with the embodiment of an inventive joint-sealing element shown in FIGS. 1a and 1 b.

FIG. 7 shows a sketched sealing arrangement with the embodiment of an inventive joint-sealing element shown in FIGS. 2a and 2 b.

DETAILED DESCRIPTION OF THE INVENTION

The following terms are used within the scope of the present invention:
Within the scope of the present invention, the term “geometry / geometries” comprises various cross-section types and cross-section shapes. This means that the sealing profile in particular may have different cross-section types and cross-section shapes. Cross-section types are understood among other possibilities as round profile (round cross section), oval profile (oval cross section), wedge profile (wedge cross section), polygonal profile (polygonal cross section), especially square profile (square cross section), rectangular profile (rectangular cross section), parallelogram profile (cross section in the shape of a parallelogram), triangular profile (triangular cross section), Christmas-tree profile (Christmas-tree-shaped cross section), semicircular profile (semicircular cross section), etc., among others. Cross-sectional shapes are understood as solid profile and hollow profile, wherein solid profile means that the sealing profile consists completely of sealing material while the hollow profile means that the sealing profile consists only partly of sealing material.
Within the scope of the present invention, the term “deformable” means that irregularities in the building part, against which the sealing profile is pressed, can be evened out. In this connection, “plastically deformable” means that the sealing profile is deformable and no longer returns to its original shape after deformation. Analogously, “elastically deformable” means that the sealing profile is deformable and returns to its original shape after deformation, i.e. the material can be deformed reversibly to a certain extent.
The terms “exhibit”, “with” and “have” are intended to be inclusive and mean that elements other than those cited may also be meant.
Within the scope of the present invention, the term “intumescence” means that, under the effect of heat, for example in the event of a fire, the material swells and forms an insulating layer of flame-retardant material, i.e. intumesces.
Within the scope of the present invention, “slow-burning foam” is understood as a foam that offers no possibility of fire propagation due to the foam, is not spontaneously flammable and also does not drip.
“Positioned in the lower region of the joint” means that the sealing profile is disposed, especially laterally, on an upper end edge of the first building part, preferably a drywall.
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.
In one aspect, the present invention relates to a joint-sealing element for sealing a joint on a building construction and/or on a building structure, especially for sealing a joint between a first building part and a second building part, wherein the joint-sealing element comprises a carrier element and a sealing profile disposed on this carrier element and is characterized in that the disposed sealing profile has a predetermined geometry.
In a further aspect, the present invention relates to a method for sealing a 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.
In a further aspect, the present invention relates to a sealing arrangement for sealing a 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, wherein the sealing profile is positioned in the lower region of the joint and is configured to seal the joint from the outside.
It has been discovered that the inventive joint-sealing element is particularly suitable for safely sealing, in simple manner, a building-structure joint between two adjacent building parts, especially against sound and/or smoke and if necessary also against fire. For the joint-sealing element to be able to fulfill its function, the sealing profile of the joint-sealing element must have a predetermined geometry. Furthermore, the joint-sealing element must be positioned in the lower region of the joint and be configured such that it can seal the joint from the outside.
Therefore, it is an objective of the present invention to describe the joint-sealing element. In particular, it is an objective of the present invention to describe the geometry of the sealing profile in detail. 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 sealing a joint between two juxtaposed building parts of a building construction and/or of a building structure with at least one building part, one second building part.
The inventive joint-sealing element for sealing a joint on a building construction and/or on a building structure, especially for sealing a joint between a first building part and a second building part, wherein the joint-sealing element comprises a carrier element and a sealing profile disposed on this carrier element, is characterized in that the disposed sealing profile has a predetermined geometry. As already mentioned hereinabove, geometries within the scope of the present invention comprise various cross-section types and cross-section shapes.
Preferred cross-section types of the sealing profile of the joint-sealing element according to the present invention are solid profiles and if necessary hollow profiles, wherein the hollow profile may be a closed or open hollow profile, preferably with a wall thickness of >2 mm. Solid profiles and hollow profiles with large profile wall thicknesses have the advantage that automatically no gaps develop at the abutting surface between two sealing profiles in contact with one another. It is particularly preferred for the sealing profile to have a solid profile.
Preferred cross-section shapes of the sealing profile of the joint-sealing element according to the present invention are round profile, oval profile, wedge profile, polygonal profile, especially rectangular profile, square profile, parallelogram profile, triangular profile, Christmas-tree profile and semicircular profile. Round profile, oval profile and wedge profile are particularly preferred, but round profile is the most preferred. Nevertheless, other or mixed cross-section shapes are also conceivable and possible, as long as the joint-sealing element is adjacent to both building parts after installation of the sealing profile and is able to close the joint that is present between the building parts.
In a preferred embodiment of the inventive joint-sealing element, the sealing profile has a round profile.
In a further preferred embodiment of the inventive joint-sealing element, the sealing profile has a wedge profile.
In a particularly preferred embodiment of the inventive joint-sealing element, the sealing profile has a solid profile and a round profile.
In a further particularly preferred embodiment of the inventive joint-sealing element, the sealing profile has a solid profile and a wedge profile.
The geometry of the sealing profile may be prefabricated, for example by well-defined cutting to size, extrusion or pressing of suitable sealing material or can be manufactured directly from flat material, for example by means of folding or rolling from a flat starting material, for example from fabric, especially from an incombustible material, such as inorganic fibers, for example glass fibers, a nonwoven fabric or the like. The manufacture of such cross-section types and cross-section shapes is known to the person skilled in the art. Preferably the geometry of the sealing profile is prefabricated by well-defined cutting to size or extrusion.
The inventive sealing profile may consist of one piece made from one material or of multiple parts made from several materials and, for example, may exist as a layered body. In alternative embodiments, the outer region and the inner region of a sealing profile may define separate regions of the sealing profile, which may have different cross-section shapes and/or cross-section types and/or may consist of different materials.
According to the invention, the sealing profile consists of a deformable material. This material may be either plastically or elastically deformable. In particular, the sealing profile consists at least partly, preferably completely of a material that is resilient after compression, such as foam, sponge rubber, cellular rubber or the like. The inventive sealing profile preferably consists of a soft foam that is resilient after compression. Common foams such as polyethylene and polyurethane foams or cellular rubber can be mentioned as foam material. This foam may be an open-celled foam with very low air passage resistance, or else an approximately closed-celled foam with extremely low air permeability values. Even foams with air permeability values lying between the two extreme cases mentioned in the foregoing may be used within the scope of the present invention. The foam may be impregnated with an impregnating agent that increases the sealing properties of the foam. In order to achieve imperviousness to smoke, at least the outer surface of the sealing profile must be of closed-pore nature. Alternatively, an open-celled sealing profile with a cover layer or jacket, for example of a film, especially plastic film, may be provided. Preferably the sealing profile consists of an open-celled polyurethane foam or of a cellular rubber.
It has proved advantageous when the sealing profile consists of a slow-burning foam, such a cellular rubber or polyurethane foam, for example. In the case of a slow-burning foam, there is no possibility that fire will be propagated by the foam. Spontaneous inflammation is ruled out by the above-mentioned foam-type starting materials. It is also advantageous that no dripping occurs in the event of fire. A slow-burning foam should still have at least 20%, still at least 25%, preferably still at least 30%, between 20% and 60%, between 20% and 40%, preferably between 25% and 30% of its initial volume in a temperature range between 500° C. and 800° C. Furthermore, a slow-burning foam should still have at least 10%, at least 20%, preferably still at least 30%, between 10% and 40%, between 10% and 30%, preferably between 15% and 20% of its initial mass in a temperature range between 500° C. and 800° C.
Furthermore, the material may contain appropriate additives if fire protection properties such as intumescence, for example, are desired. Under the effect of heat, such as in the event of fire, the material swells and forms an insulating layer of flame-retardant material. The formation of a voluminous insulating layer, namely an ash layer, may take place due to the chemical reaction of a mixture of compounds that are appropriately matched to one another and that react with one another under the effect of heat. Such systems are known to the person skilled in the art as chemical intumescence, and they may be used according to the invention.
Alternatively, the voluminous insulating layer may be formed by swelling of an individual compound, which releases gases under the effect of heat, even though no chemical reaction has occurred between two compounds. Such systems are known to the person skilled in the art as physical intumescence, and they may also be used according to the invention. According to the invention, the two systems may be used respectively alone or together as a combination. Preferably the sealing profile comprises an intumescent material.
In a preferred embodiment of the inventive joint-sealing element, the sealing profile consists of an open-celled foam.
In a further preferred embodiment of the inventive joint-sealing element, the sealing profile consists of a closed-celled foam.
In a particularly preferred embodiment of the inventive joint-sealing element, the sealing profile consists of an open-celled polyurethane foam.
In a further particularly preferred embodiment of the inventive joint-sealing element, the sealing profile consists of a cellular rubber.
The carrier element of the inventive joint-sealing element may consist of a deformable material, which may be the same as that of the sealing profile, of a film, such as a plastic film, of a fabric, especially of a noncombustible material, such as inorganic fibers, for example glass fibers, a nonwoven or the like. Preferably the carrier element consists of a plastic, of a plastic film, of a foam, of a fabric, of a nonwoven, of a metal, of a composite material or the like, preferably of a plastic film or of a foam. Most preferably, the carrier element consists of a film.
The carrier element may be made in one piece from one material or in multiple pieces, even from different materials. Preferably the carrier element is made in one piece.
The inventive joint-sealing element may be made in one piece from one material or in multiple pieces, even from different materials. Preferably the joint-sealing element consists of several units/materials. Particularly preferably, the sealing profile consists of deformable material and the carrier element of a film or fabric.
In one embodiment of the inventive joint-sealing element, the sealing profile is firmly surrounded at least over part of its circumference by a covering layer or jacket, for example of a film, especially plastic film. Thus an open-celled foam material may be used for the sealing profile.
In one embodiment of the inventive joint-sealing element, the sealing profile is firmly bonded at least over part of its circumference with the carrier element. Hereby a firm connection is created between the carrier element and the sealing profile, so that even if the fastening region is exposed to strong stress and strain and the sealing profile becomes partly detached from the carrier element, complete separation of the sealing profile from the carrier element is prevented.
In a further embodiment of the inventive joint-sealing element, the sealing profile is firmly bonded over its entire circumference with the carrier element. On the one hand, optimum and durable fastening of the sealing profile to the carrier element is achieved hereby, making separation of the sealing profile from the carrier element almost impossible. On the other hand, when the carrier layer is impermeable to smoke gas, an open-celled foam material may be used for the sealing profile.
Preferably the sealing profile is disposed on the carrier element; more preferably the sealing profile is positioned on the outer periphery of the carrier element.
The joint-sealing element of the present invention, especially the carrier element of the joint-sealing element, 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 disposed peripherally on the joint. Preferably the at least one fastening region of the joint-sealing element is provided with an adhesive layer.
The adhesive layer of the inventive joint-sealing element may be produced 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 or by means of a separately applicable adhesive or the like. Synthetic adhesives such as acrylate adhesives or hot-melt adhesives may be used in the present invention, although silicone-base adhesives are also conceivable. Preferably the adhesive layer of the joint-sealing element is a self-adhesive layer.
Fastening of the joint-sealing element to the first building part may be achieved by fastening means, for example in the form of the just-mentioned 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. Fastening may comprise adhesives, screws, dowels, clamps and nails. Preferably the joint-sealing element is fastened to the first building part by means of a self-adhesive layer. Fastening of the inventive joint-sealing element may be applied over an area or only at spots.
The inventive method for sealing a 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 is characterized in that, in a first step, the joint-sealing element is positioned and fastened on an end edge of the first building part, especially a drywall, preferably a gypsum board and, in a second step, is positioned together with this building part on the second building part. Preferably the first step comprises fastening by adhesives, screws, dowels, clamps and nails. In particular, the carrier element can be fastened flush on the upper, inwardly facing, horizontal end edge of a gypsum board.
The dimension and the materials of the joint-sealing element are chosen to correspond to the planned use of the joint-sealing element.
In general, the dimension of the joint-sealing element is chosen as a function of the profiles being used and of the material being used. The dimension must be chosen such that the joint-sealing element fills the gap between the gypsum board and the ceiling and bears sealingly both on the ceiling and on the gypsum board. If a vertical movement of the gypsum boards is to be permitted, the joint-sealing element must follow the movement of the gypsum board, to ensure that the contact with the gypsum board is not torn apart and that no spaces can develop between joint-sealing element and gypsum board. For this purpose, the sealing profile of the joint-sealing element preferably consists of resilient and compressible material and is appropriately precompressed during mounting of the gypsum board, so that a downward movement of the gypsum board, whereby the gap between this and the ceiling becomes larger, can be followed. In this way, the preadjusted freedom of movement of the gypsum board determines the dimension of the sealing profile and thus of the joint-sealing element.
As an example, it must be pointed out that the height of the shorter side of the mutually parallel sides of a wedge-shaped sealing profile will be chosen as a function of the desired use of the joint-sealing element, in which case the height for a single-boarded arrangement will be chosen as approximately the thickness of one gypsum board and the height for a double-boarded arrangement will be chosen as approximately twice the thickness of one gypsum board. In the case of a single-boarded arrangement, however, it is also possible to use the joint-sealing element designed for a double-boarded arrangement.
As an example, it must also be pointed out that material and geometry of the sealing profile may be chosen in such a way that its hardness or compressibility is adjusted such that the sealing profile is compressed to a well-defined height merely by the dead weight of the gypsum board in the floor region, for example by constructing the sealing profile as two layers of foam materials with different compression density. In this way a correct spacing between floor and gypsum board can be adjusted without further measurement. This is necessary in particular whenever damage to the gypsum board by rising dampness must be prevented.
The invention will be described in more detail hereinafter on the basis of application of the joint-sealing element on a drywall of an arrangement comprising drywall studwork and seal, without restricting the scope of protection hereby.
To establish an inventive sealing arrangement for sealing a 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, the sealing profile is positioned in the lower region of the joint, preferably on the second building part, and is configured to seal the joint from outside.
Preferably the carrier element is disposed on an end edge of the inside of the first building part. In particular, the carrier element is to be fastened flush on the upper, inwardly facing, horizontal end edge of a gypsum board.
According to the present invention, the first building part is preferably a drywall and the second building part is a wall, a ceiling or a floor, preferably a ceiling, of a building construction and/or of a building structure.
According to the present invention, the inventive joint-sealing element, after being attached to a first building part, is disposed and mounted abuttingly with this on the second building part. In this arrangement, the joint-sealing element is positioned in the lower region of the joint and is configured to seal the joint from the outside.
In one possibility for sealing a connecting joint in dry construction, after a profile, especially a channel profile, has been attached to the connecting building parts, such as a ceiling, wall or floor, the inventive joint-sealing element is positioned, fastened and mounted together with the gypsum board on or in front of that channel profile and on the connecting building part, preferably a ceiling. In a further working step, a further gypsum board may be pressed onto the sealing profile, for example at the front face, so that, in the case of a double-boarded arrangement, the two gypsum boards are in contact with the sealing profile via their respective top edge and thereby sealing of the joint is achieved. In order to permit movement of the gypsum board(s) without causing a gap to develop between the sealing profile and the gypsum board or gypsum boards in the case of maximum movement, the sealing profile must be compressed during mounting of the gypsum board(s). As soon as the gypsum board has been mounted, the joint-sealing element is held in place by the precompression. Furthermore, any irregularities that were present are closed by this compression.
For this purpose, the material and the thickness of the sealing profile are respectively chosen such that the sealing profile does not hinder the movement of the gypsum board(s) and at maximum joint width the top edge of the gypsum board(s) still remains in contact with the sealing profile, in order to ensure adequate sealing against gases. The width of the sealing profile is preferably chosen such that it corresponds approximately to twice the width of one gypsum board. It has been found that sufficient sealing may also be achieved when the width of the sealing profile corresponds to the width of only one gypsum board.
When the joint-sealing element is disposed together with the gypsum board and then abutted with the ceiling and the channel profile, irregularities in all building parts can be evened out. Furthermore, the joint spacing can be controlled by the subsequent positioning of the gypsum board as well as by the choice of sealing materials and/or geometric configuration of the joint-sealing element.
In a further particularly preferred embodiment, sealing of the joint can be achieved when, in the case of a double-boarded arrangement, the two gypsum boards are mounted with a horizontal offset in such a way that the outer of the two gypsum boards (also referred to as the outer, second gypsum board) is mounted higher (i.e. closer to the ceiling) than the inner gypsum board (also referred to as the inner, first gypsum board). In this embodiment, the thickness of the sealing profile is chosen to correspond to the thickness of one gypsum board. The first, inner gypsum board is mounted together with the sealing profile in such a way that zero or little precompression of the sealing profile is necessary. The second, outer gypsum board is attached at a horizontal offset, i.e. it is mounted higher than the first, inner gypsum board, so that it partly overlaps the sealing profile. In this case the sealing profile and the gypsum board should bear sealingly on one another, in order to seal the gap between the outer, second gypsum board and the sealing profile, especially against gases. Thus sealing is achieved between sealing profile and the second building part, such as a ceiling, a wall or a floor, as well as between sealing profile and outer, second gypsum board.
An empty gap remains between the second building part, such as a ceiling, a wall or a floor, and the outer, second gypsum board. In the case of a vertical movement of the second building part or of the gypsum boards, this gap is completely available to absorb movement.
Depending on how far the outer, second gypsum board overlaps the sealing profile (size of the offset), a movement in the other direction may also be absorbed. In this case, it is important that an overlap is still ensured between the second gypsum board and the sealing profile. Preferably, therefore, the dimension of the sealing profile is chosen such that its thickness is somewhat larger than the thickness of one gypsum board and its height comprises somewhat more than the maximum permissible movement of the building parts (maximum joint width).
By the fact that the thickness of the sealing profile is larger than the thickness of the gypsum board, the gypsum board is pushed against the sealing profile and somewhat compressed while it is being mounted, whereby the gap between sealing profile and gypsum board is reliably sealed, especially against gases.
In this type of mounting, maximum absorption of movement relative to the joint width is possible. Furthermore, this type is very mounting-friendly, since firstly the first gypsum board can be mounted together with the sealing profile without the need to measure the spacing. Secondly, the second gypsum board can also be mounted without measurement of the spacing. Furthermore, this type of mounting permits the greatest possible freedom in the choice of material for the sealing profile, since this is compressed only slightly and thus only slight requirements are imposed on the compressibility of the sealing profile.
According to the invention, the joint-sealing element can be 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.
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, which bear tightly against the profiles and are fastened to the studwork, 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 is 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 sound and/or smoke and, depending on material of the sealing profile, also against fire if necessary.
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. It is also clear to him or her that, by virtue of the different geometries of the sealing profile, it is possible for intermediate spaces known as cavities to be formed between sealing profile and carrier element.
A preferred embodiment of an inventive joint-sealing element 1 is shown in FIGS. 1a and 1 b. Joint-sealing element 1 has a sealing profile 3, which is positioned on the outer periphery of carrier element 2. Sealing profile 3 has a round profile and a solid profile, wherein carrier element 2 is positioned laterally on round sealing element 3. Furthermore, sealing profile 3 is surrounded completely, i.e. over its entire circumference, by carrier element 2. Sealing profile 3 consists of a compressible foam, which if necessary contains fire-protection additives, and carrier element 2 consists of a plastic film. Carrier element 2 has a fastening region 4 oriented in the direction of the longitudinal extent of the joint for fastening of the joint-sealing element to a construction element of the building construction and/or of the building structure disposed peripherally on the joint. Fastening region 4 of the joint-sealing element is provided with an adhesive layer.
A further preferred embodiment of an inventive joint-sealing element 1 is shown in FIGS. 2a and 2b . Joint-sealing element 1 has a sealing profile 3, which is positioned on the outer periphery of carrier element 2. Sealing profile 3 has a solid profile and a wedge profile, wherein carrier element 2 is positioned on the short side of the mutually parallel sides of wedge-shaped sealing profile 3. The shorter side of the mutually parallel sides of wedge-shaped sealing profile 3 is provided for bearing on the profile and the inclined side of the wedge is provided for bearing on the second building part. Furthermore, sealing profile 3 is partly surrounded by carrier element 2. Sealing profile 3 consists of a compressible foam, which if necessary contains fire-protection additives, and carrier element 2 consists of a plastic film.
Positionings of joint-sealing elements according to various embodiments of the present invention on a first building part are shown in FIGS. 3a and 3b .
Any geometric as well as material configuration of the sealing profile and of the carrier element mentioned in the foregoing can be combined and used in any way in order to provide a joint-sealing element according to the present invention.
FIGS. 4a to 4c show the stepwise procedure for sealing a joint between two juxtaposed building parts of a building element by means of the embodiment of an inventive joint-sealing element shown in FIGS. 1a and 1 b. To seal the gap between a ceiling 6, channel profile 9 of a drywall studwork and gypsum boards 5, joint-sealing element 1, in the first step, is positioned on end edge 7 of first building part 5 and fastened by adhesive and, in a second step, is positioned together with this building part 5 on second building part 6 and fastened in the usual way, e.g. by screws or nails. Thereby sealing profile 3 is compressed and in this way seals the gap between ceiling 6 and channel profile 9 as well as the gap between ceiling 6 and gypsum board 5. Then, in a last step, a further gypsum board 5 can be laid against the first gypsum board and pushed slightly upward in the direction of ceiling 6. Thereby sealing profile 3 is compressed once again and in this way seals the gap between ceiling 6 and channel profile 9 as well as the gap between ceiling 6 and gypsum board 5.
FIGS. 5a to 5c show the stepwise procedure for sealing a joint between two juxtaposed building parts of a building element by means of the embodiment of an inventive joint-sealing element shown in FIGS. 2a and 2b . To seal the gap between a ceiling 6, channel profile 9 of a drywall studwork and gypsum boards 5, joint-sealing element 1, in the first step, is positioned on end edge 7 of first building part 5 and fastened by adhesive and, in a second step, is positioned together with this building part 5 on second building part 6 and fastened in the usual way, e.g. by screws or nails. In the case of use of a wedge-shaped sealing profile, sufficient sealing is achieved by simply tilting the gypsum board against the profile and the ceiling, so that the joint gap corresponds to the height of the shorter side of the mutually parallel sides of wedge-shaped sealing profile 3. Thereby sealing profile 3 is compressed and in this way seals the gap between ceiling 6 and channel profile 9 as well as the gap between ceiling 6 and gypsum board 5. Installation is greatly facilitated by a wedge-shaped sealing profile, since the shape permits sliding or slipping into the correct position. Then, in a last step, a further gypsum board 5 can be laid against the first gypsum board and pushed slightly upward in the direction of ceiling 6. Thereby sealing profile 3 is compressed once again and in this way seals the gap between ceiling 6 and channel profile 9 as well as the gap between ceiling 6 and gypsum board 5.
A sectional view through a finished building element with the embodiment of an inventive sealing arrangement shown in FIGS. 1a and 1b is sketched in FIG. 6. In particular, FIG. 6 shows the positioning of an embodiment of the inventive joint-sealing element 1 in a connecting joint of drywalls with a double-boarded arrangement.
A sectional view through a finished building element with the embodiment of an inventive sealing arrangement shown in FIGS. 2a and 2b is sketched in FIG. 7. In particular, FIG. 7 shows the positioning of an embodiment of the inventive joint-sealing element 1 in a connecting joint of drywalls with a double-boarded arrangement.
As is obvious from the foregoing explanations, the inventive joint-sealing element is particularly suitable for safely sealing a building-structure joint between two adjacent building parts in simple manner, especially against sound and/or smoke and if necessary also against fire.
The joint sealing element of the present invention can be readily compressed and deformed and thereby improved evening-out of irregularities can be achieved, as can improved installation, e.g. simple laying around a corner, as well as improved sealing, e.g. when several joint-sealing elements are made to abut against one another.
The method for sealing a joint permits simple execution and, with little working effort, leads reliably and without defects to sealing of a joint between two juxtaposed building parts of a building construction and/or of a building structure.
It has been shown that, in the event of fire, the sealing arrangement permits better sealing of the 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 and if necessary better and durable fire protection can be provided, and it can be mounted reliably and free of defects with little working effort.
Application is very mounting-friendly, since no additional fastening of the joint-sealing element, for example to the profile or to the ceiling, is necessary. Accurately fitting placement of the joint-sealing element, for example against a profile or a ceiling, is also unnecessary, by virtue of the fixation and fastening of the joint-sealing element during mounting of the gypsum board on a profile. Mounting is therefore remarkably easy, and the working effort for mounting the joint-sealing element is greatly reduced. By means of the invention, therefore, safe and reliable sealing of joints between two building parts is achieved, especially between a gypsum board of a drywall studwork and a building part adjacent to it, such as a ceiling, wall or floor.
Furthermore, it has been shown that outstanding imperviousness can be achieved with the inventive joint-sealing element, since good compressibility of the sealing profiles is ensured without additional auxiliary means by the choice of the sealing materials and/or geometric configuration. By appropriate choice of the sealing materials and/or geometric configuration, the invention also makes it possible to adjust the correct spacing of gypsum board from the connecting building part without additional auxiliary means, in order to achieve the said precompression.
By means of the inventive joint-sealing element it is also possible to ensure that, merely by the choice of the sealing material and/or geometric configuration, sufficient material is installed to ensure excellent imperviousness with maximum absorption of movement.
By means of the inventive joint-sealing element it is further possible to seal irregularities of the surface of a building part safely merely by disposing one building part against another building part, since the sealing profiles of the joint-sealing element are pressed sufficiently firmly against the surface of the one building part and simultaneously against the side faces of the other building part.
In view of the foregoing, it is obvious that the objects of the invention have been accomplished. 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.

Claims

1. A joint-sealing element for sealing a joint on a building construction and/or on a building structure, comprising:

a carrier element, and

a sealing profile disposed on the carrier element,

wherein the disposed sealing profile has a predetermined geometry.

2. The joint-sealing element according to claim 1, wherein the sealing profile is positioned on the outer periphery of the carrier element.

3. The joint-sealing element according to claim 1, wherein the sealing profile is firmly bonded at least over part of its circumference with the carrier element.

4. The joint-sealing element according to claim 1, wherein the sealing profile has a solid profile.

5. The joint-sealing element according to claim 1, wherein the sealing profile has a hollow profile.

6. The joint-sealing element according to claim 1, wherein the sealing profile has a round profile, oval profile, wedge profile, polygonal profile, especially rectangular profile, square profile, parallelogram profile, Christmas-tree profile, semicircular profile or triangular profile, preferably a round profile, oval profile or wedge profile.

7. The joint-sealing element according to claim 1, wherein the sealing profile consists of a deformable material.

8. The joint-sealing element according to claim 7, wherein the deformable material is a slow-burning foam.

9. The joint-sealing element according to claim 1, wherein the carrier element comprises a plastic, a plastic film, of a foam, a fabric, of a nonwoven, a metal, or a composite material.

10. The joint-sealing element according to claim 1, wherein the sealing profile comprises an intumescent material.

11. The joint-sealing element according to claim 1, wherein the carrier element 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 disposed peripherally on the joint.

12. The joint-sealing element according to claim 11, wherein the at least one fastening region of the joint-sealing element is provided with an adhesive layer.

13. A method for sealing a 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 a joint-sealing element according to claim 1, said method comprising:

(1) positioning and fastening the joint-sealing element on an end edge of the first building part and,

(2) positioning the joint-sealing element together with the first building part on the second building part.

14. The method according to claim 13, wherein (1) comprises fastening by an adhesive, a screw, a dowel, a clamp and a nail.

15. A sealing arrangement for sealing a 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 a joint-sealing element claim 1,

wherein the sealing profile is positioned in the lower region of the joint and is configured to seal the joint from the outside.

16. The sealing arrangement according to claim 15, wherein the carrier element is disposed on an end edge of the first building part.

17. The sealing arrangement according to claim 15, wherein the carrier element is disposed on an end edge of the inside of the first building part.

18. The sealing arrangement according to claim 15, wherein the first building part is a drywall and the second building part is a wall, a ceiling or a floor of a building construction and/or of a building structure.

19. The joint-sealing element according to claim 9, wherein the carrier element comprises a plastic film or a foam.