NZ616545A - Window and door frame assemblies - Google Patents

Abstract

An assembly 50 for providing a surround finish about a door or window opening in a building structure, the assembly 50 comprising: a first extruded element 60 which includes a face 83 which abuts a surface of a structure 52 to which the assembly 50 is attached and at least one profiled part 70 which engages and retains at least one cooperating profiled part 71 of a second extruded element 59. The first element 60 includes at least one face which abuts the structure. The second element 59 includes an exposed face which faces towards an opening in a wall of the building structure and at least one part which abuts the structure. The second element 59 terminates in an end profile having at least a side wall and a base which defines a recess. An outer surface of one of the walls opposes an end 53 of a cladding sheet attached to the structure 52.

Description

WINDOW AND DOOR FRAME ASSEMBLIES WITH SHADOW LINE FINISH BACKGROUND This invention relates generally to window and door fittings and assemblies and more particularly relates to improvements in window and door fitting surround profiles. The invention further relates to window and door frame assemblies which would normally includes architrave surrounds and provides an alternative architectural finish to such surrounds. The invention further relates to an alternative door and window surround which is simple to install, adjustable to accommodate a variety of wall thicknesses and opening sizes, which can be mass produced and which eliminates traditional architrave finishes. The door and window assemblies of the present invention are particularly adaptable in domestic and commercial applications but it will be appreciated that the finish is equally adaptable to other structural environments. The invention relates to a method of fitting window and door frame assemblies to respective wall and door openings in which a groove or channel surrounds a door or window frame without requiring architraves. It will be convenient to hereinafter describe the invention in relation to its application to wall structures including windows and doors but it is to be appreciated that the invention is not limited to that application and may be adapted to alternative constructions such as but not limited to ceilings and other structures having an opening.

PRIOR ART [0002 ] The prior art is replete with a number of different window frame and door jamb and architrave assemblies each well adapted for use in particular applications. Many types of window and door frames have been used in the past to finish wall openings. Since there are typically many wall structure variations in the construction industry, window and door frames must inevitably be manufactured to suit particular wall constructions. Common wall structures are brick veneer, cavity brick, metal stud, stress skins panels and those that include an exposed surface of corrugated iron, ribbed steel or aluminium and the like.

Common to many window fittings is an extruded frame which provides a window surround and means to anchor a window to a wall structure. Door fittings generally comprise a door jamb to which is attached a finishing architrave. Door jambs and architraves may be manufactured from timber or metal including extruded aluminium profiles. Typically a window frame includes a sill section, side sections and an overhead section, which are integrally attached and engage a wall structure. The window frame is usually fitted to a wall by screwing or nailing through a flange which engages internal wall members such as timber or metal studs. Once the window frame is fitted, internal and/or external cladding can be fitted followed by installation of an architrave surround.

[0004] In buildings constructed from stress skin panels or which are finished with corrugated steel cladding, builders can presently select windows having profiles to suit the particular structure or type of finish required. Typically a window frame will include an outer flange which sits flush with wall cladding. Window installation generally involves fitting to a wall structure then finishing which includes trimming and/or sealing for weatherproofing and in the case of an internal wall, fitting of architraves. Depending upon the window type selected by the builder, which may also be dictated by the type of structure, the sealing and finishing regime differs. In stress skin panels for instance, door frames which are presently used are manufactured from metal or timber and once fitted, a finishing surround is installed which for internal walls will be an architrave nailed or screwed to the frame. This known regime also applies to windows. It may be seen from the above examples that there are a number of known window and door finishing techniques and assemblies which builders may select from. Window and door surround finishings are selected with reference to the type of structure and architectural finish required. There is always a need to provide improvements or at least alternatives in and relating to door and window surround finishes to allow builders and architects greater choice and to provide alternative architectural finishes which are economic to manufacture, easy to install, adjustable to suit walls of various thicknesses, has a minimum of fastenings and allows for alternative aesthetics in finishing window and door surrounds.

INVENTION This present invention provides improvements in window and door surround finishes which are adaptable to a variety of structures and which provide an alternative to the known window and door surround finishes including structures such as but not limited to building panels including cladded frames. The invention further provides window and door frame surrounds which are adaptable to such panels, are simple to install, adjustable to accommodate a variety of wall thicknesses and which can be economically mass produced. The invention further provides, using co operating extrusions, a surround for a window or door opening in which an alternative finish is provided at or near the interface between wall cladding and an opening finishing profile. More specifically the invention provides an assembly including a reveal adaptor which receives an auxiliary profiled member such that either or both the adaptor and auxiliary member terminate in a free end profile which accommodates wall cladding and allows a gap or contour finish at or near an interface between the cladding and the free end profile.

In one broad form the present invention comprises: an assembly for providing a finish about a door or window opening in a building structure, the assembly comprising: a first extruded element which includes a face which abuts a surface of a structure to which the assembly is attached and at least one profiled part which receives and retains at least one co operating profiled part of a second extruded element, the second element terminating in an end profile having side walls and a base which define a recess; wherein, an outer surface of one of the walls opposes an end of a cladding sheet attached to the structure.

According to a preferred embodiment the end profile of the second element includes a flange which engages a surface of the structure .

Preferably the recess is capable of receiving and retaining an insert which engages opposing inner surfaces of the sidewalls. According to a preferred embodiment the insert engages the respective inner surfaces of the side walls via co operating sawtooth formations. The second extrusion further comprises an auxiliary flange which provides an abutment surface against the structure to which the assembly is attached.

According to a preferred embodiment the engagement between the first and second elements is via male / female interfitting of mating profile parts. Alternatively the interfitting is via co operating sawtooth formations on respective ends of the first and second elements.

The first extrusion according to one embodiment terminates in an end profile having side walls and a base which define a recess; wherein, an outer surface of one of the walls opposes an end of a cladding sheet attached to an opposite side of the structure. The end profile of the second element includes a flange which engages a surface of the structure for supporting the first element. Preferably the recess is capable of receiving and retaining an insert which engages opposing inner surfaces of the sidewalls. According to a preferred embodiment the insert engages the respective inner surfaces of the side walls via co operating sawtooth formations. The second extrusion further comprises an auxiliary flange which provides an abutment surface against the structure to which the assembly is attached. At an opposite end of the first extrusion element is a free end flange which is fixed to the structure via a screw fastener. The second element is also fixed via a fastener According to one embodiment when the first and second extrusion elements are engaged a door jamb is formed. According to an alternative embodiment when the first and second elements are engaged a window reveal is formed.

In each case a gap may be provided between the end of cladding and the end profiles of the first and second elements. This finish eliminates the use of an architrave or equivalent and changes the appearance of window and door surround finishes to one in which there is a shadow gap about the periphery of the door or window. Preferably the first and second elements are metallic extrusions. Fasteners attach the first element to the structure.

In another broad form the present invention comprises: an assembly for providing a surround finish about a door or window opening in a building structure, the assembly comprising: a first extruded element which includes a face which abuts a surface of a structure to which the assembly is attached and at least one profiled part which engages and retains at least one co operating profiled part of a second extruded element, the first element including at least one face which abuts the structure; the second element including an exposed face which faces towards an opening in a wall of the building structure and at least one part which abuts the structure; the second element terminating in an end profile having at least a side wall and a base which defines a recess , side walls and a base which define a recess; wherein, an outer surface of one of the walls opposes an end of a cladding sheet attached to the structure.

Preferably, the first element is a reveal adaptor capable of functioning to accommodate a door or window reveal and the second element is an auxiliary adaptor capable of functioning as a doorway opening surface or a window reveal.

The recess is viewable to an outside observer. The base of the recess has an outer surface which is located relative to the structure so that it is generally in alignment with an inner surface of wall cladding. The effect of this is that the recess is exposed and a viewer sees a wall finish which includes a surrounding recess which architects can adopt as a type of finish.

The finish provides a shadow line. The recess can be left open or it can be closed with a closure insert. Preferably the base of the recess has an upper surface which generally aligns with an inner surface of a wall cladding and the recess is further defined by a flange perpendicular to and extending from the base. An outer face of the flange provides a surface which opposes an end of the cladding. According to one embodiment the reveal adaptor an auxiliary adaptors engage via co operating profile parts which enable adjustment of the overall width of the reveal adaptor and auxiliary adaptor.

According to one embodiment the reveal adaptor co operates with the auxiliary adaptor to form a door jamb profile. In that case there is a peripheral shadow line finish provided on each side of the wall in which the door is located. The reveal adaptor terminates in a profile which includes a wall and a base defining a recess which provides the shadow line finish.

When used in a door jamb the reveal adaptor includes two flanges which abut the structure and receive fasteners to fasten the reveal adaptor thereto.

In an alternative embodiment, the reveal adaptor co operates with the auxiliary adaptor and retains a window via a window fin This allows the assembly according to this embodiment to be adapted to any type of find window profile. In this case the reveal adaptor includes a surface which abuts the structural member and receives and retains a pair of fasteners to fasten the adaptor to the structure. To provide an internal window surround finish according to this embodiment the reveal adaptor further comprises a flange having an inner surface which abuts the structure and an outer surface which is exposed to view. This provides a smooth reveal outer surface.

According to a preferred embodiment the reveal adaptor includes a first sawtooth member which engages a corresponding sawtooth member on the auxiliary adaptor. The sawtooth arrangement allows incremental adjustment to the overall width of the door jamb or reveal as required on a particular job. In a preferred embodiment the reveal adaptor includes a second sawtooth member which engages a corresponding second sawtooth member on the auxiliary flange. The reveal adaptor further comprises a recess which receives and retains in conjunction with the second sawtooth member of the auxiliary flange, a window fin. The co operating sawtooth members act as ratchets. Screw flutes allow fastening and joining of abutting edges of the reveal adaptor and auxiliary adaptor.

The present invention provides an alternative to the known prior art and the shortcomings identified. The foregoing and other objects and advantages will appear from the description to follow. In the description reference is made to the accompanying representations, which forms a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. These embodiments will be described in sufficient detail to enable those skilled in the art to practice the invention, and it is to be understood that other embodiments may be utilized and that structural changes may be made without departing from the scope of the invention. In the accompanying illustrations, like reference characters designate the same or similar parts throughout the several views. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is best defined by the appended claims. It will be convenient to hereinafter describe the invention in relation to a metal section in the present exemplary application. However, it is to be appreciated that the invention may be constructed from other materials.

BRIEF DESCRIPTION OF DRAWINGS The invention will now be described in more detail according to a preferred but non limiting embodiment and with reference to the accompanying illustrations.

Figure 1 shows a cross section through a door frame, jamb and architrave according to one example of the prior art.

Figure 2 shows a cross section through a wider door frame, jamb and architrave according to another example of the prior art. [0020 ] Figure 3 shows in isolation a section of jamb profile extrusion from the assembly of figure 1.

[0021] Figure 4 shows in isolation a larger section of jamb profile extrusion from the assembly of figure 2.

Figure 5 shows in isolation another section of jamb profile extrusion from the assemblies of figures 1and 2.

Figure 6 shows a cross section through a door frame and jamb assembly with architraves omitted according to a preferred embodiment of the invention. [0024 ] Figure 7 shows a cross section through a wider door frame and jamb assembly with architraves omitted according to another embodiment of the invention.

[0025] Figure 8 shows in isolation a section of jamb profile extrusion from the assembly of figure 6.

Figure 9 shows in isolation a larger section of jamb profile extrusion from the assembly of figure 7.

Figure 10 shows the assembly of figure 6 with corresponding numbering and with slight geometric differences and adapted with screw flutes.

Figure 11 shows an enlarged view of the screw flutes with screw for fastening parts of the extrusion.

Figure 12 shows an alternative view of the screw flutes of figure 11.

[0030] Figure 13 shows an enlarged elevation cross sectional view of the screw flutes with screw for fastening parts of the extrusion.

Figure 14 shows a door jamb profile in isolation another section of jamb profile extrusion from the assemblies of figures 6 and 7.

Figure 15 shows a window frame and reveal assembly according to another form of the present invention

[0033] Figure 16 shows an extrusion profile which forms a window reveal of the assembly of figure 15 Figure 17 shows the assembly of figure 15 adjusted to form a wider reveal.

Figure 18 shows an assembly similar to that shown in figure 15 with an alternative reveal extrusion profile and alternative means of engagement.

Figure 19 shows the assembly of figure 18 with the extrusions adjusted to accommodate a wider reveal.

DETAILED DESCRIPTION . The invention to be described below according to a preferred embodiment provides an alternative to the known window and door frame finishing assemblies. It will be convenient to hereinafter describe the invention in relation to its application to window and door frames but it is to be appreciated that the invention is not limited to that application and may be adapted to alternative constructions and may be made from alternative materials.

The assembly will be described with reference to an extruded profile assembly for formation of a window and door frame finish on an inside of a wall and without using conventional architraves either fixed or detachable.

The window and door frames will be described with reference to internal finish – i.e. as they appear from the inside of a wall to which the window and door frames are fitted or in the case of the door application from both sides of the door.. The description will refer to the profiles of a section of the window and door frames but it is to be appreciated that the finish is continuous about the window or door opening.

Referring to figure 1 there is shown a cross section through a door frame, jamb and architrave assembly 1 according to one example of the prior art in which co operating extrusions are used. Assembly 1 includes a stud member 2 which is part of a wall frame which receives external cladding sheets 3 and 4. Typically, respective ends 5 and 6 of cladding sheets 3 and 4 are terminated in alignment with surface 7 of stud 2. Door jamb 8 is formed by extruded sections 9 and 10 and abut surface 7 of stud 2. Jamb 8 is fixed to stud 2 via fasteners 11, 12 and 13. End 5 of sheet 3 abuts a rear surface 13 of extruded section 9 of jamb 8. Likewise, end 6 of sheet 4 abuts surface 14 of extrusion 10. Assembly 1 is then finished by attachment of architrave 15 to extrusion 9 ( in this case press fit engagement) via formation 19 of extrusion 9. Extrusion 10 is fixed to stud 2 via fastener 13.

Architrave 16 is attached to extrusion 10 by snap fit engagement to finish the door jamb and architrave profile. Extrusion 10 comprises a one piece body 20 having a first free end 21 which engages surface 7 of stud 2. Wall 22 includes a recess 29 which receives and retains therein formation 23 of extrusion 9. Wall 24 defines internal space 25 and terminates in formation 26 which engages face 27 of cladding sheet 4. Fastener 13 secures formation 26 to stud 2 thereby securing extrusion 10. [0040 ] Figure 2 shows with corresponding numbering a cross section through a wider door frame, jamb and architrave assembly 1 except that extrusion 30 is enlarged in comparison to extrusion 10 to accommodate a wider stud 34. The arrangement in figure 2 shows architrave 16 of figure 1 omitted to show snap fit tabs 41 and 42.

Extrusion 30 comprises a one piece body 31 having a first free end 32 which engages surface 33 of stud 34. Wall 35 includes a recess 36 which receives and retains therein formation 23 of extrusion 9. Wall 38 defines internal space 39 and terminates in formation 40 which engages face 43 of cladding sheet 45. Fastener 13 secures formation 40 to stud 34 thereby securing extrusion 30.

Figure 3 shows with corresponding numbering in isolation a section of jamb profile extrusion 10 from the assembly 1 of figure 1. Figure 4 shows in isolation a larger section of jamb profile extrusion 30 from the assembly of figure 2. Figure 5 shows in isolation jamb profile extrusion 9 from the assemblies of figures 1 and 2. Figure 6 shows a cross section through a door frame and jamb assembly 50 without traditional architraves according to a preferred embodiment of the invention. Assembly 50 includes a timber or metallic stud member 52 which is part of a wall frame which receives external cladding sheets 53 and 54. Respective ends 55 and 56 of cladding sheets 53 and 54 are terminated short of alignment with surface 57 of stud 52. Door jam 58 is formed by extruded sections 59 and 60 and abut surface 57 of stud 52. Jamb 58 is fixed to stud 52 via fasteners 61, 62 and 63. End 55 of sheet 53 is terminated to leave a gap 65. Likewise, end 56 of sheet 54 is terminated to leave a gap 66. The gap can be removed by urging end 55 of sheet 53 closer to abutment member or flange 97.

Extrusion 60 comprises a one piece body 67 having a first free end 68 which engages surface 57 of stud 52. Wall 69 includes a recess 70 which receives and retains therein formation 71 of extrusion 9. Wall 72 defines internal space 73 and terminates in formation 74 which engages face 75 of stud 52. This is to be distinguished from the arrangement of figure 1 in which the corresponding terminating formation engages an external surface of cladding rather than directly opposing in this case face 75. Wall 80 defines internal space 73 and terminates in formation 83. The geometry of formation 83 allows engagement with surface 57 of stud 52. Member 74 retains cantilever abutment 85 which terminates in free end 86. Abutment member 85 and member 83 which define space 88.

Extrusion 59 comprises a first end formation 71 which engages recess 70 of extrusion 60. Wall 90 defines internal space 91. Wall 92 terminates in formation 93. The geometry of formation 93 allows engagement with stud 52. Member 94 retains cantilever 95 which terminates in free end 96. Depending from cantilever 95 is abutment member 97 which defines space 98. Member 95 engages surface 99 of stud 52 and is secured by fastener 61. Surface 100 of sheet 53 opposes member 95 with gap 65 left between end 55 of sheet 53 and abutment member 97. Located in space 98 is an insert 101 which provides a finish adjacent jamb extrusion 59. Likewise space 88 receives a closure insert 102 on the opposite side of stud 52 where a closed finish is required. Inserts 101 and 102 can be omitted if a peripheral groove or shadow line finish is required. Figure 7 shows with corresponding numbering a cross section through a wider door frame and jamb assembly 110 with architraves omitted according to another embodiment of the invention. The arrangement in figure 7 is essentially the same as that described for the arrangement of figure 6 except that extrusion 60 is shown enlarged to accommodate a thicker stud 52.

Figure 8 shows in isolation a section of jamb profile extrusion from the assembly of figure 6. Figure 9 shows in isolation a larger section of jamb profile extrusion from the assembly of figure 7. Figure 10 shows the assembly 50 of figure 6 with corresponding numbering and with slight geometric differences. In this case extrusion 60 is adapted with screw flutes 103, 104 and 105.Figure 11 shows an enlarged view of the screw flutes with screw for fastening parts of extrusion 60. Figure 12 shows an alternative view of the screw flutes of figure 11. Figure 13 shows an enlarged view of the screw flutes with screw for fastening parts of extrusion 60. The screws assist in lining up the profile parts of the reveal adaptor. A piece of angle can be used when cutting the extrusion at 45 degrees so that the screws and angle can pull the corners dead square and tight. Figure 14 shows a door jamb profile in isolation another section of jamb profile extrusion from the assemblies of figures 6 and 7.

Figure 15 shows a window frame and reveal assembly 140 according to another form of the present invention. Assembly 140 is shown fixed to wall stud 141 which also receives cladding sheet 142. Assembly 140 includes a window frame 143 which includes a fitting flange 144. Reveal assembly 140 comprises a first extrusion 145 which is connected to stud 141 via fasteners 146, 147 and 148. First extrusion 145 receives and retains therein fitting flange 144 of window frame 143. First extrusion 145 also receives and retains reveal extrusion 156. Extrusion 145 includes a flange 147 which opposes surface 149 of stud 141. Wall 150 abuts face 151 of stud 141 and is fastened to stud 141 via fasteners 146 and 147. Extrusion 145 terminates at free end 152 in a serrated member 153. At an opposite free end of extrusion 145 is a serrated free end member 154. Recess 155 receives and retains therein flange 144 of window frame 143. Extrusion 156 which forms a window reveal includes a wall 157 which terminates in a serrated free end 158 including serrations which engage serrated member 154 of extrusion 145.

[0048] At opposite end 159 of extrusion 156 is a formation 160 which includes a wall 161 and adjacent flange 162 having a free end which engages stud 141. Depending from flange 161 is a serrated cantilever 163 which engages serrated member 153. Extrusion 156 is retained against extrusion 145 via engagement between cantilever 163 and serrated member 153 and serrated end 158 and serrated member 154. Also depending from flange 161 is flange 164 which together with wall 161 defines recess 165. Cladding sheet 142 which is secured to stud 141 is terminated at end 166 short of flange 164 so that a gap 167 remains. Recess 165 receives an insert 169 which provides a finish for internal window surround. The result of the above arrangement is a shadow line finish around the periphery of the window. This replaces the prior art use of traditional architraves. Figure 16 shows with corresponding numbering an enlarged representation of extrusion profile 156 in isolation.

Figure 17 shows with corresponding numbering the assembly of figure 15 adjusted to form a wider reveal. Assembly 140 is shown including a window frame 143 which includes a fitting fin or flange 144. Reveal assembly 140 comprises a first extrusion 145 which is connected via fasteners 146, 147. First extrusion 145 receives and retains therein fitting flange 144 of window frame 143. First extrusion 145 also receives and retains reveal auxiliary extrusion 156. Extrusion 145 terminates at free end 152 in a serrated member 153. At an opposite free end of extrusion 145 is a serrated free end member 154. Recess 155 receives and retains therein flange 144 of window frame 143. Extrusion 156 which forms a window reveal includes a wall 157 which terminates in a serrated free end 158 including serrations which engage serrated member 154 of extrusion 145.

Extrusion 156 is retained against extrusion 145 via engagement between cantilever 163 and serrated member 153 and serrated end 158 and serrated member 154. The difference with the arrangement in figure 15 is that the relative positions of serrated end 158 and member 154 and serrated member 153 and end 52 have changed to accommodate a wider reveal surface 157.

Figure 18 shows an assembly similar to that shown in figure 15 with an alternative reveal extrusion profile and alternative means of engagement.

Assembly 160 is shown fixed to wall stud 161. Assembly 160 includes a window frame 163 which includes a fitting flange 164. Reveal assembly 160 comprises a first extrusion 165 which is connected to stud 161 via fasteners 166 and 167. First extrusion 165 receives and retains therein fitting flange 164 of window frame 163. First extrusion 165 also receives and retains reveal extrusion 170. Extrusion 170 includes a flange 171 which opposes surface 172 of stud 161. Extrusion 170 terminates at free end 173 in a serrated member 174. At an opposite free end of extrusion 170 is a serrated free end member 175. Recess 176 receives and retains therein flange 164 of window frame 163. Extrusion 170 is retained against extrusion 165 via engagement between cantilever 177 and serrated member 174 and serrated member 175 is retained by member 178. Figure 18 shows the serrations engages members 177 and 174 and 175 and 178 in one selected position to give the reveal a selected width. This width can be adjusted as shown in figure 18. As before, the result of the above arrangement is a shadow line finish around the periphery of the window. This replaces the prior art use of traditional architraves.

Figure 19 shows the assembly of figure 18 with the extrusions adjusted to accommodate a wider reveal. The difference with the arrangement in figure 18 is that the relative positions of members 174 and 177 and member 178 and 175 have changed to create a wider reveal.

Engagement length between 175 and 178 is shorter as with that between 174 and 177.

It will be recognised by persons skilled in the art that numerous variations and modification may be made to the invention broadly described herein with out departing from the overall spirit and scope of the invention.

THE

Claims (27)

CLAIMS 1. DEFINING THE INVENTION ARE AS FOLLOWS

1. An assembly for providing a surround finish about a door or window opening in a building structure, the assembly comprising: 5 a first extruded element which includes a face which abuts a surface of a structure to which the assembly is attached and at least one profiled part which engages and retains at least one co operating profiled part of a second extruded element, the first element including at least one face which abuts the structure; 10 the second element including an exposed face which faces towards an opening in a wall of the building structure and at least one part which abuts the structure; the second element terminating in an end profile having at least a side wall and a base which define a recess; 15 wherein, an outer surface of one of the walls opposes an end of a cladding sheet attached to the structure.

2. An assembly according to claim 1 wherein the first element is a reveal adaptor capable of functioning to accommodate a door or window reveal. 20

3. An assembly according to claim 2 wherein the second element is an auxiliary adaptor capable of functioning as a doorway opening surface or a window reveal.

4. An assembly according to claim 3 wherein the base of the recess has an outer surface which is located relative to the structure so that it is 25 generally in alignment with an inner surface of wall cladding,

5. An assembly according to claim 4 wherein the recess is exposed but capable of receiving a closure.

6. An assembly according to claim 5 wherein the base of the recess has an upper surface which generally aligns with an inner surface of a wall 5 cladding

7. An assembly according to claim 6 wherein the recess is further defined by a flange perpendicular to the base.

8. An assembly according to claim 7 wherein the flange extends from the upper surface of the base. 10

9. An assembly according to claim 8 wherein an outer face of the flange provides a surface which opposes an end of the cladding.

10. An assembly according to claim 9 wherein the recess receives and retains an insert which closes the recess

11. An assembly according to claim 10 wherein the reveal adaptor 15 an auxiliary adaptors engage via co operating profile parts.

12. A. An assembly according to claim 11 wherein the co operating profile parts enable adjustment of the overall width of the reveal adaptor and auxiliary adaptor.

13. An assembly according to claim 12 wherein the reveal adaptor 20 co operates with the auxiliary adaptor to form a door jamb profile.

14. An assembly according to claim 13 wherein the reveal adaptor includes two flanges which abut the structure and receive fasteners to fasten the reveal adaptor thereto.

15. An assembly according to claim 14 wherein the reveal adaptor 25 terminates in a profile which includes a wall and a base defining a recess.

16. An assembly according to claim 15 wherein the recess profile further comprises a flange extending from the base .

17. An assembly according to claim 16 wherein the recess receives a closure which covers the recess. 5

18. An assembly according to claim 12 wherein the reveal adaptor co operates with the auxiliary adaptor to retain a window.

19. An assembly according to claim 18 wherein the reveal adaptor includes a surface which abuts the structural member and receives and retains a pair of fasteners to fasten the adaptor to the structure. 10

20. An assembly according to claim 19 wherein the reveal adaptor further comprises a flange having an inner surface which abuts the structure and an outer surface which is exposed to view.

21. An assembly according to claim 12 wherein the reveal adaptor includes a first sawtooth member which engages a corresponding sawtooth 15 member on the auxiliary adaptor.

22. An assembly according to claim 21 wherein the reveal adaptor includes a second sawtooth member which engages a corresponding second sawtooth member on the auxiliary flange.

23. An assembly according to claim 22 wherein the reveal adaptor 20 further comprises a recess which receives and retains in conjunction with the second sawtooth member of the auxiliary flange a window fin.

24. An assembly according to claim 23 wherein the co operating profile parts engage in male female relationship.

25. An assembly according to claim 24 wherein the co operating 25 profile parts engage via ratchets.

26. An assembly according to claim 25 wherein screw flutes accommodate screw fasteners and allow fastening and joining of abutting edges of the reveal adaptor and auxiliary adaptor.

27. An assembly according to claim 26 wherein the extrusions are 5 metallic.