Façade structure

Abstract

A method for manufacturing a facade structure includes fastening to a load-bearing underground of a facade a dimensionally stable insulating layer having a supporting outer surface. Spacers of the same height are fastened to the insulating layer such that the spacers protrude outward from the insulating layer. An elastic adhesive is applied at points and/or as rows onto the insulating layer and/or the tile elements in areas in which no spacers are disposed, the height of the applied adhesive being greater than the height of the spacers. The tile elements are adhered to the insulating layer by pressing the tile elements against the spacers, whereby hollow spaces remain between the tile elements and the insulating layer due to the point-like and/or rows of applied adhesive.

Claims

1. A method for manufacturing a facade structure, comprising: fastening to a load-bearing underground of a facade an insulating layer having a supporting outer surface; fastening spacers of substantially the same height to the insulating layer such that the spacers protrude outward from the insulating layer; applying an adhesive at points and/or as rows onto the insulating layer and/or the tile elements in areas in which no spacers are disposed, the height of the applied adhesive being greater than the height of the spacers; and adhering tile elements to the insulating layer by pressing the tile elements against the spacers, whereby hollow spaces remain between the tile elements and the insulating layer due to the points and/or rows of applied adhesive.

2. A method according to claim 1, wherein the insulating layer is attached to the load-bearing underground using mortar, a thin bed of mortar or an adhesive, wherein the mortar, the thin bed of mortar or the adhesive is applied to the insulating layer and/or the load-bearing underground in points, strips or on the entire surface thereof.

3. A method according to claim 1, wherein the insulating layer is fastened to the load-bearing underground by way of dowels.

4. A method according to claim 1, wherein the insulating layer is formed of a series of insulating panels or sheets, and wherein butt joints that remain between the insulating panels or sheets are sealed off water-tight at the front of the insulating layer through the use of spreadable or spatula-applied sealants into which fleece or fabric, or sealing strips provided on both sides with a fleece laminate, are embedded.

5. A method according to claim 1, wherein the spacers are fastened to the insulating layer by way of adhesive.

6. A method according to claim 1, wherein joints that remain between the tile elements are filled with joint material.

7. A method according to claim 1, wherein the insulating layer is provided with a fabric or fleece coating on the front side and/or back side thereof.

8. A method according to claim 1, wherein the insulating layer is provided with a vapour barrier on the front side and/or back side thereof.

9. A method according to claim 1, wherein the spacers are formed by pads or plates that extend beneath the edge areas of adjacent tile elements and along the joints between said tile elements and are fastened to the insulating layer, and that the joints are filled with joint material.

10. A method according to claim 9, wherein each of the pads or plates comprises a plurality of fluid channels that extend in at least one direction, said channels interconnecting hollow spaces present between the tile elements and the insulating layer.

11. A method according to claim 9, wherein the pads or plates are provided with depressions in the top sides thereof in the area below the joints, said depressions holding joint material applied between adjacent tiles.

12. A method for manufacturing a facade structure, comprising: fastening to a load-bearing underground of a facade an insulating layer having a supporting outer surface; fastening spacers of substantially the same height to the insulating layer such that the spacers protrude outward from the insulating layer; applying an adhesive onto the insulating layer and/or the tile elements in areas in which no spacers are disposed, the height of the applied adhesive being greater than the height of the spacers; and adhering the tile elements to the insulating layer by pressing the tile elements against the spacers, whereby hollow spaces remain between the tile elements and the insulating layer adjacent the applied adhesive.

13. A method according to claim 12, wherein applying the adhesive comprises applying the adhesive at points and/or as rows onto the insulating layer and/or the tile elements in areas in which no spacers are disposed.

14. A method according to claim 12, wherein the spacers are fastened to the insulating layer by way of adhesive.

15. A method according to claim 12, wherein the insulating layer is provided with a fabric or fleece coating on the front side and/or back side thereof.

16. A method according to claim 12, wherein the insulating layer is provided with a vapour barrier on the front side and/or back side thereof.

17. A method according to claim 12, wherein the spacers are formed by pads or plates that extend beneath the edge areas of adjacent tile elements and along the joints between said tile elements and are fastened to the insulating layer, and that the joints are filled with joint material.

18. A method according to claim 17, wherein each of the pads or plates comprises a plurality of fluid channels that extend in at least one direction, said channels interconnecting hollow spaces present between the tile elements and the insulating layer.

19. A method according to claim 17, wherein the pads or plates are provided with depressions in the top sides thereof in the area below the joints, said depressions holding joint material applied between adjacent tiles.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a schematic perspective view of a design of a facade structure according to an embodiment of the present invention;

(2) FIG. 2 is a schematic cross-sectional view of the design shown in FIG. 1; and

(3) FIG. 3 is an enlarged view of the section identified in FIG. 2 by the reference sign III.

DETAILED DESCRIPTION

(4) Before the present invention is disclosed and described, it is to be understood that this invention is not limited to the particular structures, process steps, or materials disclosed herein, but is extended to equivalents thereof as would be recognized by those of ordinarily skilled in the relevant arts. It should also be understood that terminology employed herein is used for the purpose of describing particular embodiments only and is not intended to be limiting.

(5) It must be noted that, as used in this specification and the appended claims, the singular forms a and the include plural referents, unless the context clearly dictates otherwise. Thus, for example, reference to a tile can include one or more of such tiles.

(6) Definitions

(7) In describing and claiming the present invention, the following terminology will be used in accordance with the definitions set forth below.

(8) As used herein, the terms upper, lower, elevation, height, and the like, are to be understood to refer to relative locations and/or displacements of various elements or components relative to a condition in which a veneer system is oriented in its usable orientation. These terms are used to more clearly claim and describe the various elements or components of the invention and, unless the context clearly indicates otherwise, are not to be construed as limiting the invention to any particular embodiment.

(9) As used herein, the term substantially refers to the complete or nearly complete extent or degree of an action, characteristic, property, state, structure, item, or result. As an arbitrary example, an object that is substantially enclosed is an object that is either completely enclosed or nearly completely enclosed. The exact allowable degree of deviation from absolute completeness may in some cases depend on the specific context. However, generally speaking the nearness of completion will be so as to have the same overall result as if absolute and total completion were obtained.

(10) The use of substantially is equally applicable when used in a negative connotation to refer to the complete or near complete lack of an action, characteristic, property, state, structure, item, or result. As an arbitrary example, a composition that is substantially free of particles would either completely lack particles, or so nearly completely lack particles that the effect would be the same as if it completely lacked particles. In other words, a composition that is substantially free of an ingredient or element may still actually contain such item as long as there is no measurable effect thereof.

(11) As used herein, the term about is used to provide flexibility to a numerical range endpoint by providing that a given value may be a little above or a little below the endpoint.

(12) As used herein, a plurality of items, structural elements, compositional elements, and/or materials may be presented in a common list for convenience. However, these lists should be construed as though each member of the list is individually identified as a separate and unique member. Thus, no individual member of such list should be construed as a de facto equivalent of any other member of the same list solely based on their presentation in a common group without indications to the contrary.

(13) Concentrations, amounts, and other numerical data may be expressed or presented herein in a range format. It is to be understood that such a range format is used merely for convenience and brevity and thus should be interpreted flexibly to include not only the numerical values explicitly recited as the limits of the range, but also to include all the individual numerical values or sub-ranges encompassed within that range as if each numerical value and sub-range is explicitly recited. As an illustration, a numerical range of about 1 to about 5 should be interpreted to include not only the explicitly recited values of about 1 to about 5, but also include individual values and sub-ranges within the indicated range. Thus, included in this numerical range are individual values such as 2, 3, and 4 and sub-ranges such as from 1-3, from 2-4, and from 3-5, etc., as well as 1, 2, 3, 4, and 5, individually. This same principle applies to ranges reciting only one numerical value as a minimum or a maximum. Furthermore, such an interpretation should apply regardless of the breadth of the range or the characteristics being described.

(14) Invention

(15) The present invention relates to a facade structure, comprising a load-bearing underground, an insulating layer attached to the load-bearing underground, the insulating layer comprising dimensionally-stable insulating panels with flat, supporting outer surfaces, and a tile covering comprising a plurality of tile elements fastened to the insulating layer by way of an adhesive, the tile covering forming the outside skin of the facade structure. The present invention further relates to a method for manufacturing related facade structures.

(16) The present invention provides a facade structure of the type mentioned above characterized, in one embodiment, in that adhesive is designed to be elastic and is applied to the tile elements and/or the insulating layer in point or row-like fashion, and that spacers are disposed between the tile elements and the insulating layer, said spacers defining hollow interconnected spaces between the individual tile elements and the insulating layer. An important advantage of the facade structure according to the invention is that the tile elements are fastened directly to the insulating layer without the use of an additional support system, whereby there is no need for a reinforced inner wall, which results in a very simple and cost-effective design. Further, a decoupling is effected between the insulating layer and the tile elements by way of the flexible adhesive. The use of spacers also achieves good back ventilation of the tile covering.

(17) FIGS. 1 through 3 show a design of a facade structure 1 according to one embodiment of the present invention. The facade structure 1 comprises a load-bearing underground 2 that in this case consists of brickwork. Alternatively, the base 2 can also contain concrete, metal, wood or the like. The load-bearing underground 2 is normally vertical, even though it is shown in the horizontal position in FIG. 1.

(18) The facade structure 1 further comprises an insulating layer 3 fastened to the load-bearing underground 2, the tile consisting of a plurality of dimensionally-stable insulating panels 4 with flat, supporting outer surfaces 5. The insulating panels 4, which are made of mineral fibres, polystyrene foam or some other suitable insulating material, for example, comprise a fleece coating 6 on the front side thereof, which forms the outer surface 5, and on the back side opposite thereto. The opposing fleece coatings 6 act as an adhesion base for an adhesive or mortar. Instead of the fleece coatings 6, fabric coatings can be provided as an alternative. Further, a reinforcing and/or sealing layer can be disposed below each fleece coating 6, even though this is not shown in this case, the layer optionally comprising a layer of paper and/or plastic and/or a metallic layer, for example an aluminium foil layer. Such a reinforcing and/or sealing layer counteracts any warpage of the insulating panels 4 and/or penetration of moisture or vapour. The insulating panels 4 are each fastened to the load-bearing underground 2 using a mortar, the mortar being evenly distributed in the form of mortar lumps 7 onto the back of the insulating panels 4. Instead of the mortar, the entire surface can be adhered using a tile adhesive or the like. For smooth bases, such as metal or wood, it is preferred for a silane-modified, polymer-based adhesive to be used to fasten the insulating panels 4, the adhesive being applied to the insulating panels 4 or load-bearing underground 2 in the form of separate rows of adhesive at a distance from one another. In addition, the insulating panels 4 are fastened to the load-bearing underground 2 by way of disc-shaped dowels 8. The butt joints 9 between the individual insulating panels 4 that remain at the front side are sealed water-tight using a sealing means 10, wherein the sealing means 10 is made up to a spreadable or spatula-applied sealant in which a fleece or fabric strip or sealing strip with fleece laminated on both sides is embedded. However, the sealing means 10 can also be of a different design altogether.

(19) The facade structure 1 further comprises a tile covering 11 with a plurality of tile elements 12 and which forms the outer skin of the facade structure. The tile elements 12 are in this case large-format ceramic tiles with outer dimensions of 5050 cm or more and a thickness in the range of 0.5-2.0 cm. Alternatively, however, tile elements in the form of natural stone tiles, metal tiles, glass tiles or plastic tiles can also be used. In addition, the tile elements 12 can also have other dimensions. The tile elements 12 are fastened to the insulating layer 3 using an elastic adhesive 13, which in this case is a cement-free adhesive, more precisely a silane-modified, polymer-based adhesive, wherein the elastic adhesive 13 is applied to the back sides off the tile elements 12 in the form of a plurality of individual rows. Alternatively, a point-like application of adhesive is also possible.

(20) Spacers 14 extend between the tile elements 12 and the insulating layer 3, the spacers in this case being formed by strip-like pads or plates with a thickness in the range of 3 to 10 cm and glued to the insulating layer 3 and each extending below the edge areas of adjacent tiles elements 12 and along the joints 15 between said tile elements 12. The strip-like pads or plates each comprise two pluralities of criss-crossing fluid channels 16. More precisely, these pads or plates consist of a plastic film with rectangular, square or rounded depressions 17 extending out from the front side, the depressions being disposed in regularly distributed fashion and with the fluid channels 16 being located therebetween. The back of the strip-like pads or plates is laminated with a fleece 18 that acts as an adhesive base for a mortar or adhesive and that prevents the fluid channels 16 from filling. However, a fabric can be provided instead of the fleece 18. The spacers 14 maintain the tile elements 12 that sit on the fleece or fabric at a defined distance relative to the insulating layer 3. The fluid channels 16 of the spacers 14 ensure that the hollow spaces remaining between the tile elements 12 and the insulating layer 3 are connected fluid-dynamically with one another. Joints 15 between the tile elements 12 are filled with joint material 19.

(21) To install the facade structure 1, the dimensionally stable insulating panels 4 are fastened to the load-bearing underground 2 of the facade structure 1 in a first step. To this end, in a first step the mortar lumps 7 are applied to the back sides of the insulating panels 4, whereupon the insulating panels 4 are manually pressed onto the load-bearing underground 2. In a second step, the insulating panels 4 are additionally secured to the load-bearing underground 2 by way of the disc-shaped dowels 8.

(22) Then, the butt joints remaining between the insulating panels 4 are sealed water-tight at the front side of the insulating panels 4. To this end, a first layer of a spreadable or spatula-applied sealant is applied to the butt joints 9. Then, a sealing strip provided on both sides with a fleece laminate is placed onto the sealant just applied. Thereafter, a second layer of the spreadable or spatula-applied sealant is applied to the sealing strip. In this way, the insulating layer 3 is sealed water-tight.

(23) Now, the spacers 14 are glued to the insulating layer 3 in a substantially grid-like fashion using a suitable adhesive along the joints 15 that form later between the tile elements.

(24) In another step, the elastic adhesive 13 is applied in rows to the back sides of the tile elements 12 and/or to the insulating layer 3 in areas in which in the finished installed state of the tile elements 12 no spacers 14 are located. The height of the adhesive applied in this case is selected to be greater than the height of the spacers 14. It is preferred for the height of the adhesive applied to be at least about twice as great as the height of the spacers 14.

(25) Then, the tile elements 12 are glued to the insulating panels 4 of the insulating layer 3 by pressing the tile elements 12 against the spacers 14 until they sit against the spacers. Due to the row-like application of adhesive, hollow interconnected spaces remain between the tile elements 12 and the insulating layer 3, wherein the interconnection is realized by way of the fluid channels 16 of the spacers 14.

(26) In a last step, the joints 15 between the tile elements 12 are filled with joint material 19. In the process, the joint material 19 also fills the depressions 17 of the spacers 14, resulting in a secure hold by the joint material 19. The joints 15 can also be designed as expansion joints disposed at regular intervals. To this end, elastic joint material can be used. Alternatively, commercially-available expansion joint profiles can be used.

(27) The facade structure 1 described above has an easy-to-manufacture and cost-effective design. Moreover, the facade structure 1 is well ventilated in back thanks to the hollow spaces that form between the tile elements 12 and the insulating layer and that are connected with one another fluid-dynamically by way of the fluid channels 16 of the spacers 14. In addition, water that penetrates through the hollow spaces into the facade structure 1 can be easily drained out by way of the insulating layer 3 through the hollow spaces and through the fluid channels 16 that are designed into the spacers 14. The joints 15 present between the tile elements 12 are filled with joint material 19, resulting in a very visually appealing appearance. The fastening of the tile elements 12 using a row of applied elastic adhesive is advantageous for one thing in that the tile elements 12 are decoupled from the insulating layer 3 stress-wise. For another thing, no bleeding occurs thanks to the use of a cement-free adhesive. Moreover, the elastic adhesive is also suitable for fastening large-format tile elements 12, in other words tile elements with outside dimensions of 5050 cm and more. As such, the facade structure 1 can be very flexibly designed.

(28) It is to be understood that the above-described arrangements are only illustrative of the application of the principles of the present invention. Numerous modifications and alternative arrangements may be devised by those skilled in the art without departing from the spirit and scope of the present invention and the appended claims are intended to cover such modifications and arrangements. Thus, while the present invention has been described above with particularity and detail in connection with what is presently deemed to be the most practical and preferred embodiments of the invention, it will be apparent to those of ordinary skill in the art that numerous modifications, including, but not limited to, variations in size, materials, shape, form, function and manner of operation, assembly and use may be made without departing from the principles and concepts set forth herein.

LIST OF PARTS

(29) 1 Facade structure 2 Load-bearing underground 3 Insulating layer 4 Insulating tile 5 Outer surface 6 Fleece layer 7 Mortar lumps 8 Disc-like dowel 9 Butt joint 10 Sealing means 11 Tile covering 12 Tile element 13 Elastic adhesive 14 Spacer 15 Joint 16 Fluid channel 17 Depression 18 Fleece 19 Joint material