NZ627740B2 - A façade - Google Patents

A façade Download PDF

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Publication number
NZ627740B2
NZ627740B2 NZ627740A NZ62774012A NZ627740B2 NZ 627740 B2 NZ627740 B2 NZ 627740B2 NZ 627740 A NZ627740 A NZ 627740A NZ 62774012 A NZ62774012 A NZ 62774012A NZ 627740 B2 NZ627740 B2 NZ 627740B2
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NZ
New Zealand
Prior art keywords
panel
façade
structural
support
facade
Prior art date
Application number
NZ627740A
Other versions
NZ627740A (en
Inventor
James Gleeson
Jeremy Mccandless
Original Assignee
James Hardie Technology Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB1122059.7A external-priority patent/GB2497796A/en
Application filed by James Hardie Technology Limited filed Critical James Hardie Technology Limited
Publication of NZ627740A publication Critical patent/NZ627740A/en
Publication of NZ627740B2 publication Critical patent/NZ627740B2/en

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Abstract

facade (100) for a building is disclosed. The facade comprises at least one fagade panel (112) with a front face (131) and a rear face (113) and at least two panel support elements (108). Each panel support element (108) comprises a first arm (110) and a second arm (109) wherein at least a portion of the second arm (109) is attached to the rear face (113) of the fagade panel (112). The panel support element (108) also comprising at least two panel retaining elements (101), each comprising a first flange (104) and a channel 106, wherein at least a portion of the second arm (109) of the panel support element (108) is restrained within the channel (106) and each panel retaining element (101) is attached to a building structural substrate (102). of the second arm (109) is attached to the rear face (113) of the fagade panel (112). The panel support element (108) also comprising at least two panel retaining elements (101), each comprising a first flange (104) and a channel 106, wherein at least a portion of the second arm (109) of the panel support element (108) is restrained within the channel (106) and each panel retaining element (101) is attached to a building structural substrate (102).

Description

A FAcADE FIELD OF THE INVENTION The t ion relates to a facade system and in particular to an exterior facade system suitable for use in building construction. [0002} The invention has been developed primarily for use as an exterior facade cladding system suitable for use in building construction and will be described hereinafter with reference to this application. However, it will be appreciated that the invention is not limited to this particular field of use.
BACKGROUND OF THE INVENTION Any discussion of the prior art throughout the specification should in no way be considered as an admission that such prior art is widely known or forms part of the common general dge in the field. [00041 Facade systems for new buildings are widely known. Facade panels of various types of materials, including coated aluminium and polymer composite materials are fixed to a structural frame, generally a metal frame, to provide a r tight exterior envelope on a building. Such panels are conventionally ed to the structural frame by face fixing through the panel using securing means such as nails, screws and the like. Such securing means require secondary on-site processing to provide an tically pleasing finish. it is known to provide concealed fixing for panels in facade systems to avoid secondary on-site processing.
The concealed fixing system usually utilises a clip or bracket system which is attachable to the rear face of the facade panel. r, the clip or bracket system only provides point supports to the panel. This can cause further difficulties in extreme r conditions particularly when the facade panel is trimmed to fit ic wall dimensions.
Furthermore, whilst facade systems are effective when ing a weather tight exterior envelope, they e little or no thermal insulation performance. or insulated foam systems are known for providing a thermally ent exterior facade system, whereby a thick insulation layer is formed on the exterior of a building structure and a thin layer of weatherproofing render is applied over a support mesh attached to the insulation. These systems are more effective at providing thermal insulation performance, but, if the screed is breached, they lose their ability to provide a weather tight exterior envelope resulting in water ingress causing a reduction in thermal performance and possible damage to building structural elements.
OBJECT OF THE ION It is an object of the present invention to overcome or ameliorate at least one of the disadvantages of the prior art, or to provide a useful alternative.
It is an object of a preferred form of the present ion to provide an improved façade system that can be easily secured to a structural frame whilst also optionally providing a thermally efficient façade system.
SUMMARY OF THE INVENTION [0007a] ing to a first aspect of the invention there is provided a façade system suitable for attaching to a structural substrate comprising; at least two façade panels, each façade panel comprising a front face and a rear face and an edge member intermediate to and contiguous to the front face and the rear face, each façade panel further sing at least one panel support element, wherein the at least one panel support element ses a first arm connected to the rear face of each façade panel, a second arm and a bridging portion intermediate the first and second arm, wherein each façade panel is arranged such that the panel support elements attached to the first and second façade panel respectively are bilaterally symmetrical with t to a plane of symmetry perpendicular to the rear face of each façade panel, and at least one panel retaining means comprising means for attaching the panel retaining means to the structural substrate and means for securing at least one panel support element to the at least one panel retaining means, n the means for securing the panel support element ses a channel formation for retaining the second arm of the panel support element, wherein the façade system comprises an array of panel retaining means attached at user determined ons to the structural substrate, wherein the panel retaining means comprise a plurality of elongate channel sections attached to a structural substrate in a first orientation and a plurality of discrete sections attached to the structural substrate in a second orientation intermediate to the elongate l sections. - 2a - An embodiment of the invention provides a façade system (100) suitable for attaching to a structural substrate (102) comprising; at least one façade panel (112) comprising a front face (131) and a rear face (113) and an edge member intermediate to and uous to the front face (131) and the rear face (113), at least one panel support element (108) having a first arm (110), a second arm (109) and a bridging portion intermediate the first and second arm, wherein the first arm (110) of the at least one panel support element (108) is connected to the rear face ( 113) of the at least one façade panel (112), and at least one panel retaining means (101) comprising means for attaching the panel retaining means to the structural substrate (102) and means for securing the at least one panel support element (108) to the at least one panel retaining means (101), n the means for securing the at least one panel support element (108) comprises a l formation (106) for retaining the second arm (109) of the at least one panel support element (108).
An embodiment of the invention provides a method for installing a façade system (100) suitable for attaching to a structural substrate (102) comprising the steps of: (a) installing panel retaining means (101) comprising means for attaching the panel retaining means to the structural substrate (102) and means for securing a panel support element (108) to the panel retaining means (101), wherein the means for securing the at least one panel support element (108) comprises a channel formation (106); (b) coupling a façade panel (112) comprising a front face (131) and a rear face (113) and an edge member intermediate to and contiguous to the front face (131) and the rear face (113) to a panel support element (108) comprising a first arm (110), a second arm (109) and a bridging portion intermediate the first and second arm, wherein the at least one panel support element (108) is connected to the rear face (113) of the at least one façade panel (112), and (c) installing a façade panel (112) coupled to a panel support element (108) by inserting the second side arm of panel support element into the l formation (106).
An embodiment of the invention provides a method for installing a façade system (600) suitable for attaching to a ural substrate (602) comprising the steps of: (a) ling a structural support element (616) into a structural ate (602) (b) fixing a supporting bracket (617) to the ural ate (602); (c) inserting a structural spacer element (620) into supporting bracket (617); (d) aligning the structural spacer element (620); (e) inserting a support plate (623) into the structural spacer element (620); (f) adjusting the height of the t plate (623) to a desired relative distance from the surface of ural substrate (602); (g) mounting of panel retaining means (601) comprising means for attaching the panel retaining means to the support plate (623) and means for securing a panel support t (608) to the panel retaining means (601), wherein the means for securing the at least one panel support element (608) comprises a channel formation (606); (h) installing insulating material (615) between the structural substrate and the support plate; (i) coupling a façade panel (612) comprising a front face (631) and a rear face (613) and an edge member intermediate to and uous to the front face (631) and the rear face (613) to a panel support element (608) comprising a first arm (610), a second arm (609) and a bridging portion intermediate the first and second arm, wherein the at least one panel support element (608) is connected to the rear face (613) of the at least one façade panel (612), and (j) installing a façade panel (612) d to a panel support element (608) by inserting the second side arm of panel support t into the channel formation (606).
An ment of the invention es a façade system (100) suitable for attaching to a structural substrate (102) comprising: at least one façade panel (112) comprising a front face (131) and a rear face (113) and an edge member intermediate to and contiguous to the front face (131) and the rear face (113), at least two panel support elements (108), each panel support element (108) having a first arm (110), a second arm (109) and a bridging portion intermediate the first and second arm, wherein the first arm (110) of the panel support element (108) is connected to the rear face (113) of the at least one façade panel (112), such that the first and second panel support elements (108) are spaced apart from each other in a symmetrical arrangement on the rear face (113) of the at least one façade panel (112) , and at least one panel retaining means (101) comprising means for attaching the panel ing means to the structural substrate (102) and means for securing at least one panel support element (108) of the at least two panel support elements (108) to the at least one panel retaining means (101), wherein the means for securing the panel support element (108) comprises a channel formation (106) for ing the second arm (109) of the panel support t (108).
Preferably the panel support ts are oriented symmetrically with respect to a plane of symmetry which is dicular to the rear face which is equidistant and parallel to two panel edges. Other embodiments will be apparent to the skilled person from the disclosure herein.
An embodiment of the invention provides a method for installing a façade system (100) suitable for attaching to a structural substrate (102) comprising the steps of: (a) installing panel retaining means (101) on the structural ate (102), wherein the panel retaining means (101) comprises means for attaching the panel retaining means to the structural substrate (102) and means for securing a panel support element (108) to the panel retaining means (101), wherein the means for securing the panel support element (108) comprises a channel formation (106); (b) coupling a façade panel (112) comprising a front face (131) and a rear face (113) and an edge member intermediate to and contiguous to the front face (131) and the rear face (113) to at least two panel support elements (108), wherein each panel support element (108) comprises a first arm (110), a second arm (109) and a bridging portion intermediate the first and second arm, wherein the at least two panel t elements (108) are connected to the rear face (113) of the at least one façade panel (112) such that they are spaced apart from each other in a symmetrical ement on the rear face (113) of the façade panel (112) , and (c) installing the façade panel (112) coupled to the at least two panel support elements (108) by inserting the second side arm of at least one panel support element (108) into the channel formation (106).
An embodiment of the invention provides a method for installing a façade system (600) suitable for attaching to a structural substrate (602) sing the steps of: (a) installing a structural support element (616) into a structural substrate (602) (b) fixing a ting bracket (617) to the structural substrate (602); (c) inserting a structural spacer t (620) into ting bracket (617); (d) aligning the structural spacer element (620); (e) inserting a support plate (623) into the structural spacer element (620); (f) adjusting the height of the support plate (623) to a desired relative distance from the surface of structural substrate (602); (g) ng of panel retaining means (601) on the structural substrate (602), wherein the panel retaining means (601) comprises means for attaching the panel retaining means to the support plate (623) and means for securing a panel support t (608) to the panel retaining means (601), wherein the means for securing the at least one panel support element (608) comprises a channel formation (606); (h) installing insulating material (615) between the structural substrate and the support plate; (i) coupling a façade panel (612) comprising a front face (631) and a rear face (613) and an edge member intermediate to and contiguous to the front face (631) and the rear face (613) to at least two panel t ts (608) wherein each panel support element (608) comprises a first arm (610), a second arm (609) and a ng portion intermediate the - 5a - first and second arm, wherein the at least two panel support elements (608) are connected to the rear face (613) of the at least one façade panel (612), such that they are spaced apart from each other in a rical arrangement on the rear face (613) of the façade panel (612); and (j) installing the façade panel (612) coupled to the at least two panel support elements (608) by inserting the second side arm of one panel support element (608) into the l formation (606).
The advantage of the present invention is that is provides an adjustable, concealed fix, façade system, that is easy to install. Conveniently the façade panels are mounted onto the at least one ing element by means of a panel support element such that the front face of the façade panel forms the exterior component of the façade system.
It is acknowledged that the term ‘comprise’ may, under varying jurisdictions be ed with either an exclusive or inclusive g. For the purpose of this specification, the term comprise shall have an inclusive meaning that it should be taken to mean an inclusion of not only the listed components it directly references, but also other non-specified ents. Accordingly, the term 'comprise’ is to be attributed with as broad an retation as possible within any given jurisdiction and this rationale should also be used when the terms ised’ and/or ‘comprising’ are used.
It is to be understood that the terms ‘panel retaining means’ and ‘retaining element’ are used interchangeably throughout the specification to describe the means by which the facade panel is attached to a structural substrate.
In one embodiment of the invention, the channel formation of the panel retaining means comprise a first and second flange separated by an intermediate portion. Ideally the first and second flanges extend substantially parallel to each other. Accordingly in this embodiment of the invention, the first and second s of the retaining element and the ediate portion form a ed channel, whereby the flanges define the arms of the U- shaped channel and the intermediate portion defines the base of the U-shaped channel.
In a further embodiment of the invention the first flange is biased towards second flange forming a cted portion of the channel formation. In use, when the second side arm of panel support element is urged into the restricted portion of channel, first flange is forced away from the second flange resulting in second flange acting as a resiliently biased spring on second side arm to retain it in its installed position.
Optionally, in a further embodiment of the ion the second flange terminates in a formation designed to increase resistance of fit of the second arm of panel support element.
The formation can be of any suitable shape or size. An example, of such a formation is a detent.
In a further embodiment of the invention, the panel retaining means further comprises spacing means intermediate the panel retaining means and the structural substrate.
In one embodiment of the invention, the spacing means comprises a structural support element and a structural spacer element.
In use, the structural support element is installed on the structural building substrate and projects therefrom. es of le structurai support elements include, for example, bolts, chemical anchors, masonry anchors and the like. The structural spacer element is mounted onto the ural support element. ural spacer elements comprise a hollow tube that is substantially made from for example tallic materials such as glass fibre filled polymers, polypropylene, wood composites, wood, mineral materials, mineral filled polymers, and the like. It is recognised that any material with a low thermal conductivity and sufficient structural strength to meet the requirements of static and c loading encountered in installation and in e are suitable for use as either the structural spacer element and or structural support element.
In a further embodiment of the invention an al spacer element comprising, for example. a rubber or polymeric , is placed over each structural support element before mounting the structural spacer element.
In a r embodiment of the invention each of the structural spacer element and structural support element are provided with mutually ble threaded portions.
Conveniently the structural spacer element is installed on the structural support element by rotating the structural space element threaded portion with the threaded portion on structural support t.
In an alternative embodiment of the invention the structural support element is ally formed with the structural spacer element.
In a further embodiment of the invention, the spacing means further comprises a support bracket. Conveniently the support bracket is mountable over the protruding part of ural support element. thereby providing additional support to the spacing means of the facade system of the invention. In one embodiment of the invention the support bracket is fixed in place by t securing means such as mounting bolts which are secured directly into substrate.
In another embodiment of the invention, the t bracket is held in place by the combined positioning of the support bracket, structural support and the releasable engagement of the structural spacer element with the structural support element. Advantageously the bolts or tensioning screws can be used to adjust the tilt of support bracket to take into account any surface variability in the masonry wall or building ate. in this way the support bracket is adjusted to ensure the required alignment of structural spacer element.
In a further embodiment of the ion there is provided a t plate intermediate the panel retaining means and the spacing means. The support plate of the invention comprises a support surface attached to a t shaft, wherein the panel retaining means are attachable to the support plate.
In a r embodiment of the invention the structural spacer element and support shaft have mutually engageably threaded portions which releasably engage with each other.
Conveniently this feature enables the support plate to be wound in or out to allow for ment to the position of the support plate relative to the surface of ural ate whilst also providing a substantially planar surface for mounting the retaining element.
Optionally an additional locking means is provided on the support plate is provided to lock the support plate at the desired position and prevent movement during installation of facade panels. in a further embodiment of the invention, the panel retaining means further comprises securing means to securely retain the second side arm of the panel support element in position within the channel formation of the panel retaining means.
In a further embodiment of the invention the panel support element is in the form of a “C” channel n. In a further embodiment of the invention, the central flange of the “C" channel section may be ated to allow ation of at least the portion between the insulating material and rear face of each installed facade panel.
Conveniently the panel support element is positioned on the rear face of the facade panel such that there is a panel lip provided between the end of the first side arm and the edge member of the panel. The panel lip functions to provide an area between the panel t eiement and the panel edge so that the panel support element is not seen from the exterior face of the facade panel.
In a further embodiment of the invention multiple panel t elements are attached to the rear face of the facade panel to form a facade cassette.
In a further embodiment of the invention. there is ed two panel support elements for each facade panel, wherein the first and second side arms on the panel support members comprise a continuous member extending between the respective "C" channel sections.
In a further ment of the invention, the panel support t further comprises a ting web between the first and second side arms parallel to and spaced apart from base member, thereby forming an ed box section. One advantage of the enclosed box section is that it provides an air channel which further improves the thermal efficiency of the facade system of the invention. It is to be understood that this is an optional feature and is not necessarily present in all embodiments of the panel support elements of the invention. Optionally, one or more comer connectors comprising two lengths of material arranged at right angles relative to each other, such that the or each corner connector can be positioned within the enclosed box section of ing panel support members. The advantage of the corner connector is that it provides additional support and strength to the panel support elements when arranged together to form a facade te. In a further embodiment of the invention the interior of the box section and the corner connectors have complimentary engaging portions disposed on the surfaces of the interior of the box section and the comer connectors. The complimentary engaging portions are designed to engage with each other when the corner connector is inserted into the enclosed box section to retain the corner connector in place. Optionally sealant or adhesive can be used in isolation or in conjunction with the complimentary engaging portions to retain the corner connector in place in the box section.
In a further embodiment of the ion, the panel support element comprises capping means whereby the capping means are used to protect the edge member of the facade panel. In this embodiment of the invention, the panel support element comprises a “J” channel section wherein the short side of the “J" shaped channel comprises the first side arm and the elongate side of the “J" shaped channel ses the second side arm of the panel support element, intermediate the first side arm and second side arm is provided a base member The panel support element comprising g means further ses a third side arm spaced apart from the first side arm and projecting orthogonally from base member thereby forming a second “U” shaped l. Conveniently the first and third side arm are spaced apart an appropriate distance to enable a facade panel seat within the second "U" shaped channel. Optionally adhesive is placed within the second “U" shaped l to secure the section of the facade panel seated within the second “U" shaped channel and thereby hold the facade panel in place. Optionally the third side arm comprises a recess on the surface of the arm remote from the "U” shaped channel. The recess acts as a capillary break for ng water ingress and preventing water migrating to the rearface of the panel.
In a further embodiment of the invention, the end of first side arm remote from base member comprises a resilient member in the form of a small protrusion or lip. The lip or protrusion is resiliently biased towards the third side arm to further support and retain a facade panel when in position in the panel support t. The tip or protrusion also serves to attach as a capillary break to manage water ingress.
Preferably, in one embodiment of the invention, the panel support member sing capping means is used to surround or frame a facade panel such that the facade panel is enclosed by the panel support element forming a facade cassette. Conveniently, the ends of each adjacent panel support member are mitre cut to allow the respective members to seat together in an aesthetically pleasing manner. Conveniently the corner connectors of the invention can also be positioned within the enclosed box section of adjoining panel support members. The advantage of the corner connector is that it provides additional t and strength to the pane] support elements when arranged together to form a facade cassette. In a further embodiment of the invention the panel support member comprising capping means can have a decorative surface effect applied as desired. {0040] In a further embodiment of the invention the facade system further comprises insulating al positioned between the structural substrate and the rear face of the facade panel. It is to be understood that this is an optional addition to the facade system. Suitable insulating materials include foamed panelized insulating material, for example, polyurethane foamed panelized insulating material, mineral or glass wool or other suitable insulating als. Conveniently, ting al is provided with the appropriate thermal insulation performance as desired by the end user. The ed insulating material may be led to substantially cover, for example a wall n of building substrate that is to be clad by the facade system of the invention. It is preferable that no gaps are left between the insulating material and the structural building ate that may detract from thermal performance of the completed facade. The age of the insulating material is that it enhances the thermal performance of the facade system of the invention. Conveniently the present invention incorporates a thermal conduction tinuity for minimizing or substantially eliminating direct thermal conductivity between the facade face and the building structural ate.
In a further embodiment of the invention the insulation al is supported by the bridging portion between the first and second side arms of the panel support element.
In a further embodiment of the invention wherein spacing means are used, insulating material is positioned such that it butts up against the structural spacer element. in a further ment of the invention, building wrap is optionally installed over the insulating material. In a further embodiment of the invention, the ting material includes a building paper surface layer thereby removing the need for a separate building wrap material.
Building wrap or building paper is designed to prevent the passage of liquid water but allow for passage of water vapour, thereby allowing a wall cavity to e and enable evaporation of any ingressed rain water or condensation.
In a further ment of the invention the facade panel is secured to the panel support element by either mechanical or chemically means. Any suitable mechanical or chemical means le for securing the facade panel to the support element known to the person skilled in the art can be used. In the preferred embodiment of the invention the rear face of the facade panel is secured to the panel support element using adhesive. in a further embodiment of the invention the panel retaining means is attached or d to the ural substrate in a user determined position by ing means, for example bolts, screws or rivets. It is tood that mechanical fastening means are ed with means to ensure that the fastening means are held securely in position on the structural substrate such that retaining element can bear loads whilst being held securely in position on the building structural substrate by the fastening means.
In a further embodiment of the invention, the facade system comprises an array of panel retaining means attached at user determined positions to the structural ate.
In a further embodiment of the invention the panel retaining means comprise discrete sections or in elongate channel sections. in a further embodiment of the ion, the panel retaining means comprise a plurality of elongate channel ns attached to a structural substrate in a first orientation and a plurality of discrete sections attached to the structural substrate in a second orientation intermediate to the elongate channel sections. in the preferred embodiment of the invention the discrete sections are attached to the ural substrate substantially orthogonal to the elongate channel sections.
In a r embodiment of the invention, the facade system comprises a pre-finished unit comprises at least one facade panel, at least two panel support elements and insulating material, wherein the insulating al is attached to the rear face of the facade panel interposed between the at least two panel support ts. The advantage of this embodiment of the invention is the facade panel unit(s) can be preassembled and delivered to a building site if so desired thereby reducing the amount of time required on site to complete installation of a thermally efficient facade. Conveniently r additional insulating al is installed on site prior to installing facade panels to fill gaps between the insulating material already present in preassembled facade panel units.
In a further ment of the invention, the panel retaining elements and/or panel t elements are preferably made from a suitable extruded metal, such as, aluminium, however any suitable metal or other material known to a person skilled in the art could also be used.
In a further embodiment of the invention, each said ural spacer element is substantially formed from at least one material selected from the group comprising that is substantially made from for example non-metallic als such as glass fibre filled polymers, polypropylene, wood composites, wood, mineral materials, mineral filled polymers, and the like.
In one embodiment of the invention at least two panel support elements are required to fix a panel into a d position within the facade construction. In a further embodiment of the invention four panel support elements are used, each adhered to the rear face of a panel, and each adjacent an edge. Optional additional supports may be used in intermediate positions to improve properties such as wind loading and for stiffening of very large panels.
Once these are fixed in position, each xed side arm of each “C" channel panel support element may be engaged with a respective panel ing element to secure the panel into a desired, and user selectable position.
The use of continuous section panel retaining elements allows for uction of a weathertight facade system, where any water that ingresses through the panel joint positions, is containing within the channels formed by the flanges of the panel support elements and the panel retaining elements.
According to the invention, there is provided a method for installing a facade system le for attaching to a structural substrate comprising the steps of: (a) installing panel retaining means comprising means for attaching the panel retaining means to the structural substrate and means for securing a panel support element to the panel retaining means, wherein the means for securing the at least one panel support element comprises a channel formation; (b) coupling a facade panel comprising a front face and a rear face and an edge member intermediate to and contiguous to the front face and the rear face to a panel t element comprising a first arm, a second arm and a bridging portion intermediate the first and second arm, wherein the at least one panel support element is connected to the rear face of the at least one facade panel, and (c) installing a facade panel coupled to a panel support element by inserting the second side arm of panel support element into the channel formation.
According to the invention, there is also provided a method for installing a facade system suitable for attaching to a structural substrate comprising the steps of: (a) installing a structural support element into a structural substrate; (b) fixing a supporting bracket to the structural substrate; (0) inserting a structural spacer element into ting t; (d) aligning the structural spacer element; (e) ing a suppdrt plate into the structural spacer element; (f) adjusting the height of the support plate to a d ve distance from the surface of structural substrate; (9) mounting of panel retaining means sing means for attaching the panel ing means to the support plate and means for securing a panel support element to the panel retaining means, wherein the means for securing the at least one panel support element comprises a channel formation; (h) installing insulating material between the structural substrate and the support plate; (i) coupling a facade panel comprising a front face and a rear face and an edge member intermediate to and contiguous to the front face and the rear face to a panel support element comprising a first arm, a second arm and a bridging portion intermediate the first and second arm, n the at least one panel t element is connected to the rear face of the at least one facade panel, and (j) installing a facade panel coupled to a panel support element by inserting the second side arm of panel support element into the channel formation.
In a further embodiment of the invention, at least one facade panel is a fibre cement panel.
BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described more particularly with reference to the accompanying drawings, which show by way of example only various embodiments of the facade system of the ion.
In the drawings: Figure 1 is a cross-sectional side view of a section of a facade system ing to a first embodiment of the invention; Figure 2 is a cross-sectional side view of a section of a facade system according to a second embodiment of the invention; Figure 3a is an end view of a panel with panel support elements attached according to a further ment of the invention; Figure 3b is a rear view of the panel of Figure 3a; Figure 4a is an end view of a panel with panel support elements attached according to a further embodiment of the invention; Figure 4b is a lly cut away front view of the panel of Figure 4a; Figure 5 is a cross-sectional side view of a n of a facade system according to a third embodiment of the invention; Figure 6 is a cross—sectional side view of a section of a facade system according to a fourth embodiment of the invention; Figure 7 is a cross-sectional side view of a section of a facade system according to a fifth embodiment of the invention; Figure 8 is a cross—sectional side view of a section of a facade system according to a sixth embodiment of the invention; Figure 9 is a sectional side view of a section of a facade system ing to a seventh embodiment of the invention; Figure 10 is a l cut-away front view of a thermally efficient facade system according to one embodiment of the invention; and Figure 11 (a) to (g) are sectional side view of the stages when constructing a thermally efficient facade system in accordance with one embodiment of the invention.
DETAILED DESCRIPTION OF THE INVENTION hout the detailed description of the invention, the features of the invention that are common to each embodiment have the same two-digit reference numeral. The reference numerals are prefixed with a one or more further digits to indicate the embodiment of the invention being referred to. ing to the drawings and specifically Figure 1, there is shown a facade system according to the first embodiment 100 of the invention. The facade system 100 comprises a retaining element 101 fixed to building structural substrate 102 in a user determined position by fastening means 103. In this embodiment of the invention the fastening means 103 comprises ical fastening means, in the form of a screw. Alternatively other types of fastening means that could be used inciude for example, bolts, screws or rivets. Although not shown, it is understood that mechanical fastening means 103 are provided with means to ensure that the ing means 103 are held securely in position on the building ural substrate 102 such that retaining element 101 can bear loads whilst being held securely in position on the building ural substrate 102 by the fastening means 103.
Retaining t 101 comprises a first and second flange 104 and 105 respectively separated by an intermediate portion. The flanges 104 and 105 of the retaining element 101 and the intermediate portion form a U—shaped channel 106, whereby the flanges 104 and 105 define the arms of the U—shaped channel 106 and the intermediate portion defines the base of the U-shaped channel 106. The U-shaped channel 106 extends around the intermediate portion. ~16— First and second facade panels 112 and 114 are mounted onto the retaining element 101 by means of a panel support element 108 such that the front face 131 of the facade panel forms the exterior component of the facade system 100. In the ment shown panel support element 108 is in the form of a “C" channel section, wherein the face of a first side arm 110 is chemically bonded using adhesive 111 to the rear face 113 of facade panel 112.
Conveniently the “C” channel section is positioned on the rear face 113 of the facade panel such that there is a panel lip 113a provided between the end of the first side arm 110 and the panel edge. The panel lip 113a ons to provide an edging member between the panel support element 108 and the panel edge so that the panel support element 108 is not seen from the or face 131 of the facade panel 112, 114. The second side arm 109 of panel support element 108 is seated within channel 106. The second side arm 109 of the panel support element 108 is secured in position by securing means 107. In the embodiment of the invention shown, securing means 107 is an adhesive.
When the facade system 100 of the invention is used to provide a water tight exterior envelope around a building, the facade system comprises an array of retaining ts 101 attached at user determined positions to the building structural substrate 102. Retaining element 101 may be led as discrete sections or in continuous channel sections. An example of this is shown in Figure 10, where elongate sections of retaining element 1001 are installed vertically 1001(a), and discrete sections are installed ntally 1001 (b).
Second side arm 109 of panel support element 108 can be slid into channel 106 of retaining element 101. in lation of a facade 100, a starter strip may be used to retain the edge of the first panel or row of panels. Usually, this is the lower edge. A row of facade panels each may be installed by inserting second side arm 109 of a panel supporting element 108 of facade panel into the starter strip. Retaining t 101 may then be positioned to capture the second side arm 109 of panel retaining ion 108 across the upper edge of each of the row of facade panels. ing element 101 may be fastened to a support plate to provide a substantially rigid support for the installed row of facade panels.
In the facade system 100, insulating material 115 is also shown, for example, fibreglass batt insulation positioned between the building substrate 102 and the rear face 113 of the facade panels 112 and 114. it is to be understood that this is an optional addition to the facade system 100. iently, insulating material 115 is provided with the appropriate thermal tion performance as desired by the end user. The insulation material 115 shown in Figure 1 is supported by the bridging portion between the first and second side arms 109 and 110 of the panel support element 108. The age of the insulating material is that it enhances the l performance of the facade system of the invention.
Referring to Figure 2, there is shown a second embodiment 200 of the facade system of the invention. in this embodiment of the invention the facade system the retaining element 201 is fixed to a horizontal structural substrate202a extending between two vertical structural building substrates 202. In the embodiment shown the horizontal structural substrate 202a is in the form of a girt. it is to be understood that the horizontal structural substrate 202a is provided as a bracing member to the primary structure and any suitable shaped horizontal member with or without additional ising means can be used. The retaining element 201 is secured by a ical er 203 to the girt 202a. The remaining features of Figure 2 are similar to those of Figure 1.
Figures 3(a) and 4(a) are end views of two embodiments of the panel support elements referred to as 308 and 408 tively. In this ment of the invention the first and second side arms 309 and 310 se a continuous member extending between the "C" channel sections such that the panel support element 308 ses the panel 312. Panel support element 308 of Figures 3(a) and 3(b) shows two “C” channel sections attached to the rear face 313 of the panel 312 by chemically adhering the panel support element 308 to the panel 312. The “C" channel section does not span the entire panel 312, there is provided a lip 313a between the end of the first arm 309 of the panel support member 308 and the panel edge to ensure that the panel support element 308 is not seen from the exterior face of the facade panel 312. Optionally multiple panel support elements 308 can be attached to the rear face 313 of the facade panel 312 to form a facade cassette 328 as shown in Figure 3(b). In this embodiment shown there are four panel support elements 308 attached to the rear face 313 of the facade panel 312. The panel support elements 308 are arranged in a continuous or endless squared arrangement.
Referring now to Figure 4(a) and 4(b), there is shown a further embodiment of a panel support element 408. in this ment of the invention, the panel support element 408 is provided with g means whereby the capping means is used to protect the edges of facade panel 412. The panel support element 408 is provided as a “J” channel section wherein the short side of the “J" shaped channel comprises the first side arm 410 and the te side of the “J" shaped channel comprises the second side arm 409. intermediate the first side arm 409 and second side arm 410, there is provided a base member 429. In the embodiment shown there is a connecting web 432 provided between the first and second side arms 409 and 410 parallel to and spaced apart from base member 429, to form an enclosed box section 433. One advantage of the enclosed box section 433 is that it provides an air channel which r improves the thermal efficiency of the facade system of the invention. It is to be understood that this is an optional feature and is not necessarily present in other embodiments of the panel support elements of the invention.
Panel support element 408 is also provided with a third side arm 430 which projects orthogonally from base member 429. Conveniently the first side arm 410 and third side arm 430 are spaced apart from each other such that the first and third side arm 410, 430 and base member 429 form a second “U” shaped channel. Conveniently the first and third side arm 410 and 430 are spaced apart an riate distance to enabie a facade panel 412 seat within the second "U" shaped channel. In the embodiment shown, adhesive 411 is provided on the section of the facade panel 412 seated within the “U" shaped channel to secure and hold the facade panel 412 in place. The end of first side arm 410 remote from base member 429 is also provided with a small protrusion or lip. The lip or protrusion is resiliently biased towards the facade panel 412. In this way the first side arm 410 acts to r t and retain the facade panel 412 in position in the panel support element 408.
Referring now to Figure 4(b), there is shown a facade panel 412 which has been surrounded or framed by panel t elements 408 such that the facade panel 412 is ed by the panel support element 408 forming a facade cassette 428. For the purposes of this description, the panel support elements in Figure 4(b) will be referred to as vertical and horizontat members of the frame which is used to surround facade panel 412. The ends 434 of the vertical and horizontal members have been mitre cut to allow the respective members to seat together in an aesthetically pleasing manner. ally, one or more corner connectors 435 comprising two lengths of material arranged at right angles relative to each other can be positioned within the ed box section 433 of adjoining horizontal and vertical members of the frame. in the embodiment shown, the corner connector 435 does not extend the entire length of either the vertical or horizontal member. This allows further corner connectors (not shown) to be placed at each respective comer of the frame. The or each corner connector 435 is held in place using corner fixings 436. The advantage of the corner connector 435 of Figure 4(b) is that it provides additional support and th to the panel support elements 434 when arranged in the frame ure shown.
In Figure 5, there is shown a further ment 500 of the facade system of the invention. This embodiment of the invention differs from those of Figure 1 and 2 in that the -19.. retaining element 501 is connected to the structural building substrate 502 by means of an optional structural spacer element 520.
A structural support element 516 is installed into the ural building substrate 502. An optional spacer element 519 may then be placed over each structural support 516 before structural spacer elements 520 are mounted onto the structural support element 516.
The optional spacer element 519 comprises, for example, a rubber or polymeric washer. The optional spacer element 519 functions to improve the ease of tightening of structural spacer element 516.
In the embodiment shown the structural support element 516 is integrally formed with the ural spacer element 520. Optionally, the structural support element 516 and structural spacer element 520 are preassembled together by the manufacturer. Each of the ural spacer element 520 and structural support element 516 are provided with mutually enageable threaded portions 521. Conveniently the structural spacer t 520 is led by rotating the threaded portion 521 with the threaded portion on structural support element 516. Structural support element 516 may be screwed into masonry wall or building substrate 502 until tight. Each structural spacer element 520 is tightened against optional spacer element 519, if used.
Once structural spacer element 530 is fixed into on and its orientation aligned, the process can be repeated at other user selectable ons across the face of a section of building substrate 502 to provide an array of locations that will support the installed facade.
Insulating material 515 may be installed at this point. Suitable insulating als include foamed panelized insulating material, for example, polyurethane foamed panelized insulating material, mineral or glass wool or other suitable insulating materials. The selected ting material may be installed to substantially cover the wall section of building ate 502 that is to be clad. Insulating material 515 is positioned such that it butts up against the structural spacer element 516. It is tood that the insulating material is installed in line with manufacturer‘s recommendations and leaves as little uncovered space as possible. It is preferable that no gaps are left between the insulating al 515 and the structural building substrate 502 that may t from thermal performance of the ted fagade.
Building wrap 522 is optionally installed over the insulating material 515, with minimally sized perforations made to accommodate the ding ends of structural spacers 520. gh not shown in an alternative embodiment of the invention the insulating material 515 includes a building paper surface layer y removing the need for a te building wrap material.
The support plate 523 has a “T" configuration in cross-section and comprises a support surface attached to support shaft 524. The structural spacer element 520 and support shaft 524 have mutually engageably threaded portions 525 which releasably engage with each other. Conveniently this feature enables the support plate 523 to be wound in or out to allow for ment to the position of the support plate 523 relative to the surface of structural ng substrate 502 whilst also providing a ntially planar surface for mounting the retaining t. Support plate 523 is mounted to each structural spacer element 520. Shaft 524 of support plate 523 is inserted into the central aperture of spacer element and engaged with second threaded portion 525. The relative distance of support plate 523 from building substrate 502 may be adjusted by lling the relative depth of engagement of the treaded portion of shaft 511 with second threaded portion 512 of structural spacer element 506. The structural spacer element 516 is sized such that it projects a sufficient distance from the surface of structural building substrate 502 and the surface of insulating al 515 to allow the retaining element to be securely attached to the structural spacer element 516. Once ed to a desired on, an optional additional nut (not shown) positioned on shaft 524 may be used to lock support plate 523 at that position and prevent nt during lation of facade panels 512, 514, particularly if using discrete panel retaining elements 501 rather than elongate sections that may span several support plates 523.
When the support plate 523 is in position, retaining element 501 is fixed to it mechanically by securing means, for example, bolts, screws or rivets (not shown). Panel t elements 508 are attached to rear face 513 of facade panels 512 and 514 and seated within channel 506 as previously described. As before retaining element 501 may be installed as discrete sections or in uous channel sections. The relative height of each supporting plate 523 is adjusted so that the surface of all supporting plates forms a planar array across the wall section. Adjustment of the relative height of supporting plated 523 provides a planar surface onto which the facade can be mounted to provide a planar facade e with minimal difficulty.
Retaining element 501 is fixed to support plate 523 by screw 507 which extends into shaft 524 of support plate 523. Retaining element 501 may be in the form of an extruded metal profiled section comprising first flange 504 and second flange 505 which is mounted against support plate 523. Second flange 505 extends substantially parallel to first flange 504.
Optionally, at least one end of second flange 505 terminates in a formation designed to increase resistance of fit of facade pane! units during lation to ensure a tight fit of the facade unit to the t structure.
Conveniently structural spacer elements 520 shown in this embodiment of the ion are installed at intermediate panel positions in on to comer support positions.
Referring now to Figure 6, there is shown a further embodiment of the facade system 600 of the invention. This ment of the invention is similar to that of Figure 5 however a support t 617 is mounted over the ding part of structural support element 620.
The support bracket 617 is fixed in place by mounting bolts 618 which are secured directly into substrate 602. Bolts 618 may be used to adjust the tilt of support bracket 617 to take into account any surface variability in the masonry wall or building substrate 602 and ensure the required alignment of ural spacer element 616. Bolt 618 is a normal threaded bolt and it into a threaded aperture in the base may be mounted to supporting bracket 617 by inserting flange of supporting t 617. By tightening bolt 618 its threaded portion will extend beyond the base of supporting bracket 617 and will apply pressure against building substrate 602. As bolt 618 is progressively tightened, the resistance of building substrate 602 to the applied re will cause supporting bracket 617 to tilt, thereby enabling a degree of adjustment of tilt of supporting bracket 617. More than one bolt 618 may be used on each supporting bracket 503 to enable tilt to be adjusted in more than one axis.
In this embodiment of the invention the structural spacer element 620 is mounted over the structural support element 616 which is contained within the central apertures of each support t 617. When ural spacer element 620 in inserted into support bracket 617, structural spacer element 620 is substantially perpendicular to the intended plane of the facade system 600. Structural spacer element 620 has a structural support element 616 integrally formed preassembled by its manufacturer. Optional spacer 619, such as rubber or polymeric washers, may be fitted into the base of supporting bracket 617 to improve the ease of tightening of ural spacer element 620. Structural support element 616 may be inserted through supporting bracket 617 and screwed into masonry wall ate 602 until tight. The ing features of the facade system of this embodiment are similar to those of Figure 5.
Figure 7 shows yet another embodiment of the facade 700 of the present invention, wherein at least one or more of support brackets 717 are used without being chemically or mechanically fixed directly to structural building substrate 702. They are instead held in place by the combined positioning of the support bracket 717 over structural support 716 and the releasable engagement of the threaded portions of the structural spacer element 720 with the structural support element 716. Tensioning screws 718 are optionally provided to adjust the angle of t bracket 717 and thereby also adjust the angle of structural spacer element 720 ve to structural building substrate 702.
Panel retaining element 701 is fixed to support plate 723 by securing means 703 which in this ce is adhesive. A portion of first flange 704 is biased towards second flange 705 forming a restricted portion of channel 706. When second side arm 709 of panel support element 708 is urged into the restricted portion of channel 706, first flange 704 is resiliently biased away from second flange 705 resulting in second flange 705 acting as a resiliently biased spring on second side arm 709 to retain it in its installed position. Figure 7 shows a first panel 712 in an installed position and a second panel 714 in position ready to be led, whereby the second side arm of the second panel support element will be urged into the cted portion of channel 706.
Figure 8 shows a cross-sectional view of a further embodiment 800 of a thermally efficient fagade system of the invention. In this embodiment of the invention. panel ing element 801 comprises a "T” section and channel 806 is formed between support plate 823 and panel retaining element 801. Panel retaining element 801 is fastened to support plate 823 by mechanical fastener 803. t plate 823 is attached to structural spacer element 820 by means of the mutually engaging threaded portion 825. As before the structural spacer t 820 is secured to the structural support t 816 by mutually ng threaded portions 521. The structural t t 816 is secured in position by means of a supporting bracket 817 which is secured in position by securing means 818. insulating material 815 is disposed between the supporting bracket 817 and the supporting plate 823.
Building wrap 822 is ed on the face of the insulating material 815 remote from the building substrate 802.
In this embodiment of the invention, the facade panels 812 and 814 are provided together with at least two panel support elements 808 and insulating material 827 as pre- finished units, wherein the insulating al is interposed between the at least two panel support elements 808. In this embodiment of the invention 800, the facade panel unit(s) can be preassembled and delivered to a building site if so desired thereby reducing the amount of time required on site to complete installation of a thermally efficient facade. Further additional insulating material 815 can be led on site prior to installing facade panels 812 to fill gaps n insulating material 827 in preassembled facade panel units.
Referring now to Figure 9, there is shown a further embodiment of the ion 900.
This embodiment of the invention is very similar to the embodiment of the invention shown in Figure 7. The support brackets 917 shown in Figure 9 are also secured to the structural building substrate 902 without the use of chemically or mechanically fixing means. As before, the support bracket 917 is held in place by means of the structural support element 916 which also secures the structural spacer element 920 is position.
The retaining element 901 has a further design modification whereby the end of first flange 904 remote from the base member of the U-shaped channel 906 comprises a projection extending orthogonally therefrom. The projection extends in parallel with the base member of the U-shaped channel 906 pointing towards the second flange member 905. The projection is resiliently biased towards the second flange member 905 to provide a resistance or friction fit when the second side arm 909 of panel support element 908 is inserted into the channel 906.
In the embodiment shown the projection further comprises an optional enlarged and to enhance the performance of this embodiment of the invention.
The structural support element 916 and the structural spacer element 919 of Figure 9 are not provided with mutually engaging threaded portion. In this ment of the invention the structural t element 916 is in the form of a bolt which is secured directly to the ural building substrate 902.
Figure 10 ShOWS a partial cutaway front view of a thermally efficient facade 1000 constructed according to one embodiment of the invention, wherein structural support elements 1016 are fixed to structural building substrate 1002, in this case, an ng masonry wall construction. ural support elements 1016 may be bolts, chemical anchors, masonry anchors and the like, that have a n for engaging the structural building substrate 1002 and a portion for ng at least a structural spacer element 1020. Alternate structural support element 1016 in both the ntal and vertical plane of structural building substrate 1002 have a support bracket 1017 positioned and fixed to the structural building substrate using bolts 1018. Spacer elements (not shown), such as washers, are positioned over each structural support element 1016 and a respective ural spacer element 1020 engaged and d to bring threaded n of structural support 1016 into releasable engagement with a first ed portion of stnictural spacer element 1020.
Structural spacer elements 1020 are formed from non-metallic materials such as glass fibre filled polymers, polypropylene, wood composites, wood, mineral materials. mineral filled polymers, and the like. Any materials with a low thermal conductivity and sufficient structural strength to meet the requirements of static and dynamic loading encountered in installation and in service are suitable. ural spacer ts 1020 also provide a break in thermal conduction between metal support and retaining elements and the structural support elements 1016 fixed to the structural ng substrate 1002, thereby reducing thermal tion between the or or front face of the facade 1031 and the ural building substrate 1002 in the constructed facade system 1000.
Insulating material 1015 such as glass fibre batts, polystyrene insulating panels or the like, user selectable to meet local building code requirements, are positioned between installed structural spacer elements , so that no large open gaps exist which would t from the thermal insulation efficiency of the facade. Over the top of the insulating material 1015, a building wrap or building paper 1022 is installed. Building wrap or building paper is designed to prevent the passage of liquid water but allow for passage of water vapour, thereby allowing a wall cavity to breathe and enable evaporation of any ingressed rain water or condensation.
Each support plate 1023 is positioned by ng a threaded portion on its shaft with a respective second threaded portion of a structural spacer element. The relative distance of the support plate away from the structural building ate is adjustable by controlling the depth of the engagement of the t plate with the second threaded portion of each respective structural spacer. In this way, any variability in the flatness of the structural building substrate 1002 can be taken into account, and the relative height of the support plates 1023 can be controlled. [0147} Once the height of each support plate 1023 has been set, the panel retaining elements 1001 (a), 1001(b) can be fixed in position. Panel retaining elements are in the form of continuous extruded channel “’H’, “C” or “T” sections that may be fixed chemically or mechanically to support plates 1023. In this e, they are glued to the support plates 1023 by a suitable construction grade adhesive (not . At least one channel in each panel retaining t 1001(a) and 1001(b) may comprise at least one resiliently biased arm, for ing additional frictional support to an installed facade panel. The panel retaining ~25- elements and/or panel t elements are preferably made from a suitable ed metal, such as. aluminium, however any suitable metal or other material known to a person d in the art could also be used.
Once panel retaining elements 1001(a), 1001(b) are in place, panel t elements (not shown) are either chemically or mechanically fixed to the rear face of each facade panel. In one embodiment of the invention at least two panel support elements are required to fix a panel into a desired on within the facade construction. In a r embodiment of the invention four panel support elements are used, each adhered to the rear face of a panel, and each adjacent an edge. Optional additional supports may be used in intermediate ons to improve properties such as wind loading and for stiffening of very large . Once these are fixed in position, each non-fixed side arm of each "C” l panel support t may be engaged with a respective panel retaining element 1001(a), 1001(b) to secure the panel into a desired, and user selectable on.
In a further embodiment of the invention, the central flange of the "C" channel section may be perforated to allow ventilation of at least the portion between the insulating material 1015 and rear face of each installed facade panel.
The use of continuous section panel retaining elements allows for construction of a rtight facade system, where any water that ingresses through the panel joint positions, is containing within the channels formed by the flanges of the panel support ts and the panel retaining elements.
Figure 11 shows an installation sequence (not including insulating materials or building wrap in views (a) to (f)) comprising (a) installation of structural support element 1116 into building substrate 1102; (b) fixing of supporting bracket 1117 to ng substrate 1102 by bolts 1118; (c) insertion of structural spacer element 1120 into supporting bracket 1117, engagement of threaded portion 1121 of structural spacer element 1120 with a corresponding portion on structural support element 1116 and tightening; (d) aligning structural spacer element 1120; (e) insertion of shaft 1124 of support plate 1123 and height adjustment to a desired relative distance from the surface of building substrate 1102; (f) mounting of retaining element 1101 and insulating material 1115; and (g) insertion of second side arm 1109 of panel support element 1108 of panels 1112 and 1114 into channel 1106 thereby completing the installation.
It will of course be understood that the invention is not limited to the specific s described herein, which are given by way of example only, and that various modifications and alterations are possible within the scope of the invention as defined in the appended claims.

Claims (23)

CLAIMS :
1. A façade system suitable for ing to a structural substrate comprising;
at least two façade panels, each façade panel comprising a front face and a rear face
and an edge member intermediate to and contiguous to the front face and the rear face,
each façade panel further comprising at least one panel support element, wherein the
at least one panel support element comprises a first arm connected to the rear face of each
façade panel, a second arm and a bridging portion intermediate the first and second arm,
wherein each façade panel is arranged such that the panel support elements attached
to the first and second façade panel respectively are rally symmetrical with respect to a
plane of symmetry perpendicular to the rear face of each façade panel, and
at least one panel retaining means comprising means for attaching the panel retaining
means to the ural substrate and means for ng at least one panel support t
to the at least one panel retaining means, wherein the means for securing the panel support
element comprises a channel formation for retaining the second arm of the panel support
element, n the façade system comprises an array of panel retaining means attached at
user determined positions to the structural ate, wherein the panel retaining means
comprise a ity of elongate channel sections attached to a structural substrate in a first
orientation and a plurality of discrete sections attached to the structural substrate in a second
orientation intermediate to the elongate channel sections.
2. A façade system according to Claim 1, wherein the channel formation of the panel
ing means comprise a first and second flange separated by an intermediate portion.
3. A façade system according to Claim 2, wherein the first and second flanges extend
substantially parallel to each other.
4. A façade system according to Claim 2 or Claim 3, wherein the first and second flanges
of the retaining element and the ediate portion form a U-shaped channel whereby the
flanges define the arms of the U-shaped channel and the intermediate portion defines the base
of the U-shaped channel.
5. A façade system according to Claim 2, wherein the first flange is biased s
second flange forming a restricted portion of the l formation.
6. A façade system according to Claim 5, wherein the second flange acts as a resiliently
biased spring on second side arm of the panel support element.
7. A façade system according to any one of Claims 2 to 6, wherein the second flange
terminates in a formation designed to increase the resistance of fit of the second arm of panel
support element within the channel ion.
8. A façade system according to any one of Claims 1 to 7, wherein the means for securing
at least one panel support element of the at least one panel retaining means is adapted to
secure further panel support ts.
9. A façade system according to any one of the preceding claims, wherein the panel
retaining means further comprises spacing means intermediate the panel retaining means and
the structural substrate.
10. A façade system according to Claim 9, wherein the spacing means comprises a
structural support element and a structural spacer element.
11. A façade system ing to Claim 10, wherein each of the structural spacer t
and structural support element are provided with mutually enageable ed portions.
12. A façade system according to any one of Claims 9 to 11, n the spacing means
further comprises a support bracket.
13. A façade system according to Claim 12, wherein the support bracket is fixed in place by
bracket securing means whereby the bracket securing means are used to adjust the tilt of
support bracket to take into account any surface variability in the y wall or ng
substrate.
14. A façade system ing to any one of Claims 9 to 11, wherein the panel retaining
means further comprises a support plate intermediate the panel retaining means and the
structural spacer element.
15. A façade system according to Claim 14, wherein the support plate comprises a support
surface ed to a support shaft, the panel retaining means being attachable to the support
plate and the support shaft being engageably with the structural spacer element.
16. A façade system according to Claim 15, wherein the structural spacer element and
support shaft have mutually engageably threaded portions which releasably engage with each
other.
17. A façade system according to Claim 14, wherein the support plate further comprises
g means for locking the support plate at a desired position and preventing movement
during installation of façade panels.
18. A façade system ing to any one of the preceding claims, wherein multiple panel
support elements are attached to the rear face of each façade panel to form a façade te.
19. A façade system according to Claim 18, wherein the façade system further comprises
insulating material, wherein the insulating material is attached to the rear face of each façade
panel interposed between the le panel support elements.
22. A façade system according to any one of the preceding claims, wherein each façade
panel is a fibre cement panel.
23. A façade system suitable for attaching to a ural substrate substantially as herein
described with reference to any one of the embodiments of the invention rated in the
accompanying drawings and/or examples.
NZ627740A 2011-12-21 2012-12-20 A façade NZ627740B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1122059.7 2011-12-21
GB1122059.7A GB2497796A (en) 2011-12-21 2011-12-21 Thermally Efficient Façade
NZ62772512 2012-12-20

Publications (2)

Publication Number Publication Date
NZ627740A NZ627740A (en) 2016-02-26
NZ627740B2 true NZ627740B2 (en) 2016-05-27

Family

ID=

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