AU2017203921A1 - A building construction - Google Patents

Abstract

A building construction is provided, including a floor structure having a side surface around its boundary, wherein the side surface includes an upper edge and a lower edge. A wall base bracket including a lateral flange is secured to the floor structure such that the lateral flange extends outwardly from the side surface from a position displaced between the upper edge and the lower edge. At least one upright wall panel is supported by the lateral flange of the wall base bracket. o \/XNN&u> o o ~>< t0 0 ~ $ N Ny&N N <7 'Y''~ 2> "t47~ N <>N>W N< (7 \N \N$.NK2NKNPNN'VNNN \ ,>N~ >y NN\7 7 > >7 N <N> <'7 N,72NN $7 <ax' 2 '77> K'> (7 >Q2 ~ <'>~ frA "' / en ;lNj\ > '(7 LI.. 7< >2%N KS ~'> '> N<7> N7) N> 7)' I> <it $77 >7 ~ / / ANN" >2>7 N.NNNN~KN' ~ <$7 > 7N>N K' K' N//N N > '/A>N'V NY> /t <z Qw> w en (<N N / en '-I 2<> 0 >,>N, 7> Lfl

Description

A BUILDING CONSTRUCTION TECHNICAL FIELD

The present disclosure relates to a modular building construction and method of construction, more particularly to a connecting system for securing wall panels of a modular building unit.

STATEMENT OF CORRESPONDING APPLICATIONS

This application is based on the provisional specification filed in relation to New Zealand Patent Application Number 721080, the entire contents of which are incorporated herein by reference.

BACKGROUND

The benefits of dry and effectively thermally insulated housing are well known, particularly with regard to maintaining health and improved energy efficiency. However, most traditional construction methods are time intensive, which adds significant costs to those of the materials themselves. Managing these costs can lead to compromises in material or build quality, particularly in lower income areas.

More cost efficient building materials are being explored. For example, the use of foam polyisocyanurate (also referred to as PIR) sandwich panels for cladding having effective thermal insulating properties is becoming increasingly popular in the construction industry.

However, the use of such panels in known construction techniques still requires the use of additional framing to ensure compliance with building standards - particularly with regard to bracing requirements. This limits the cost effectiveness of using such panels.

It is an object of the present invention to address at least one of the foregoing problems or at least to provide the public with a useful choice.

All references, including any patents or patent applications cited in this specification are hereby incorporated by reference. No admission is made that any reference constitutes prior art. The discussion of the references states what their authors assert, and the applicants reserve the right to challenge the accuracy and pertinency of the cited documents. It will be clearly understood that. although a number of prior art publications are referred to herein, this reference does not constitute an admission that any of these documents form part of the common general knowledge in the art, in New Zealand or in any other country.

Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like, are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense, that is to say, in the sense of "including, but not limited to".

Further aspects and advantages of the present invention will become apparent from the ensuing description which is given by way of example only.

SUMMARY

According to one aspect of the present disclosure there is provided a building construction, including: a floor structure, having a side surface around its boundary, wherein the side surface includes an upper edge and a lower edge; a wall base bracket including a lateral flange, the wall base bracket secured to the floor structure such that the lateral flange extends outwardly from the side surface from a position displaced between the upper edge and the lower edge; and at least one upright wall panel supported by the lateral flange of the wall base bracket.

According to one aspect of the present disclosure there is provided a method of securing a panel relative to a floor structure having a side surface around its boundary, wherein the side surface includes an upper edge and a lower edge, the method including: providing a wall base bracket to the floor structure such that a lateral flange of the wall base bracket extends outwardly from the side surface from a position displaced between the upper edge and the lower edge; supporting the panel on the lateral flange of the wall base bracket; and fastening the panel to the floor structure.

According to one aspect of the present disclosure there is provided a kit set for assembling a building construction, including: a wall base bracket including a lateral flange, the wall base bracket configured to be secured to a floor structure having a side surface around its boundary, wherein the side surface includes an upper edge and a lower edge, such that the lateral flange extends outwardly from the side surface from a position displaced between the upper edge and the lower edge; and at least one upright wall panel to be supported by the lateral flange of the wall base bracket. According to one aspect of the present disclosure there is provided a building construction, including: at least one wall having an upper edge and a lower edge, including: at least one door wall panel configured to receive a door, wherein the door wall panel is discontinuous between the upper edge and the lower edge of the wall; a first wall panel adjacent the at least one door wall panel on a first side; and a second wall panel adjacent the at least one door wall panel on a second side; a lintel bracket, including a first lintel plate, and a second lintel plate perpendicular to the first lintel plate, wherein the lintel bracket is provided to extend along the upper edge of the wall over the at least one door wall panel, and at least partially over the first wall panel and the second wall panel.

According to one aspect of the present disclosure there is provided a method of constructing a wall of a building construction, the wall having wall an upper edge and a lower edge, the method including: providing a first wall panel adjacent at least one door wall panel on a first side, and a second wall panel adjacent the at least one door wall panel on a second side, wherein the door wall panel is discontinuous between the upper edge and the lower edge of the wall; providing a lintel bracket, including a first lintel plate and a second lintel plate perpendicular to the first lintel plate, to extend along the upper edge of the wall over the at least one door wall panel, and at least partially over the first wall panel and the second wall panel.

According to one aspect of the present disclosure there is provided a kit set for assembling a building construction, including: at least one door wall panel configured to receive a door, wherein the door wall panel is discontinuous between the upper edge and the lower edge of the wall; a first wall panel configured to be provided adjacent the at least one door wall panel on a first side; a second wall panel configured to be provided adjacent the at least one door wall panel on a second side; a lintel bracket, including a first lintel plate, and a second lintel plate perpendicular to the first lintel plate, wherein the lintel bracket is provided to extend along the upper edge of the wall over the at least one door wall panel, and at least partially over the first wall panel and the second wall panel.

In an exemplary embodiment, the wall panel may be a sandwich-structured composite, including two skins or linings sandwiching a thicker core structure. For example, the wall panel may include a core selected for its insulating properties (such as mineral wool, or rigid foamed plastic) sandwiched between metal or rigid plastic sheets. In an exemplary embodiment the core material may be a foam polyisocyanurate (also known in the art as PIR).

It should be appreciated that while such panels are described herein in the context of providing the walls of a modular building, such panels may also be used for other purposes, such as roofing of the building.

By way of example, the wall panel may be a PIR sandwich-structured composite having technical specifications approximating that of the MetecnoPanel™ PIR panel manufactured by Metecno Pty Limited. More particularly the wall panel may be the 75 mm thick MetecnoPanel™ PIR panel, or an equivalent thereof, having steel linings of substantially 0.5 mm to 0.8 mm thick steel. It should be appreciated that while the inventors have identified that wall panels having these specifications may be used in the building construction described herein, the examples provided are not intended to be limiting to all embodiments.

According to one aspect of the present disclosure there is provided at least one external corner bracket provided between wall panels at corners of the building construction.

In an exemplary embodiment, the floor structure may be a suspended floor. The suspended floor may include a plurality of floor joists. In an exemplary embodiment the suspended floor may include boundary joists. In an alternate embodiment the suspended floor may include solid blocking at the ends of the floor joists.

In an exemplary embodiment the suspended floor may be configured to be supported by a piled foundation. However, it should be appreciated that this is not intended to be limiting, and that in exemplary embodiments the subfloor support of the suspended floor may be a foundation wall.

In an exemplary embodiment the building construction may include a roof structure to be supported by the walls of the building construction.

In an exemplary embodiment the roof structure may include at least one base panel, for example a sandwich-structured composite. In an exemplary embodiment the roof structure may include a profiled roofing panel on the upper side of the base panel - for example a five rib roofing panel.

In an exemplary embodiment, the building construction may include at least one roof bracket configured to be used to secure the roof structure to the walls. In an exemplary embodiment the roof bracket may include an inner vertical plate and an outer vertical plate to be positioned on either side of the wall, and an inner lateral flange and an outer lateral flange to be secured to the roof structure.

In an exemplary embodiment the roof bracket may be configured to cap the one or more wall panels -i.e. the inner lateral flange and the outer lateral flange may be bridged by a cap plate.

In an exemplary embodiment the roof bracket may include a thermal break between the inner and outer elements of the roof bracket. In an exemplary embodiment the thermal break may be provided by cutting along the cap plate. In an exemplary embodiment a seal may be provided across the thermal break between the roof bracket and the roof structure - for example a layer of joint sealing tape. In an exemplary embodiment the inner and outer elements may remain joined - but having apertures in the cap plate which reduce the cross-sectional area of the connection between the inner and outer elements to satisfy local building standards with regard to thermal breaks. In an exemplary embodiment the roof bracket may be manufactured in two or more parts - i.e. an inner roof bracket and an outer roof bracket.

In an exemplary embodiment, the wall base bracket may include an inner vertical plate from which the lateral flange extends. In an exemplary embodiment the wall base bracket may include an outer vertical plate spaced laterally from the inner vertical plate. The inner vertical plate, lateral flange, and outer vertical plate collectively provide a channel in which the upright wall panel may be received.

In an exemplary embodiment the lateral flange may be a first lateral flange and the wall base bracket may include a second lateral flange extending from the outer vertical plate towards the first lateral flange, with a gap therebetween.

In an exemplary embodiment the wall base bracket may include a drainage chamber below the lateral flange, including a plurality of drainage apertures through which water collecting in the chamber may be drained. In an exemplary embodiment at least one inner surface of the drainage chamber may be angled towards the drainage apertures. In another exemplary embodiment, the lateral flange may be angled from the inner vertical plate and the outer vertical plate towards the drainage apertures, with the upright wall panel seated on the junction between the lateral flange and the vertical plates.

In an exemplary embodiment, the wall base bracket may be provided to the floor structure such that the lateral flange is at least 40 mm above the lower edge of the side surface of the floor structure. In an exemplary embodiment the lateral flange may be within the range of 30 mm to 70 mm above the lower edge of the side surface of the floor structure. In an exemplary embodiment the lateral flange may be about 50 mm above the lower edge of the side surface of the floor structure.

In an exemplary embodiment the height of the inner vertical plate above the lateral flange may be greater than that of the outer vertical plate. In an exemplary embodiment, a first wall base bracket fastener may be passed through the inner vertical plate into the side surface of the floor structure. In an exemplary embodiment, a second wall base bracket fastener may be passed through the outer vertical plate, upright wall panel, and inner vertical plate into the side surface floor structure.

In an exemplary embodiment the second wall base bracket fastener may be vertically spaced above the lower edge of the side surface of the floor structure by a distance within the range of 40 mm to 60 mm. In an exemplary embodiment the distance may be about 50 mm.

In an exemplary embodiment, a wall base fastener may be passed through the panel into the side surface of the floor structure. In an exemplary embodiment the wall base fastener may be vertically spaced from the second wall base bracket fastener by a distance within the range of 40 mm to 120 mm. In an exemplary embodiment the distance may be within the range of 60 mm to 100 mm. In an exemplary embodiment the distance may be within the range of 75 mm to 85 mm. In an exemplary embodiment the distance may be about 80 mm.

In an exemplary embodiment the building construction may include an inner wall base bracket provided to the floor and inner facing surface of the wall panel. The inner wall base bracket may include a horizontal base plate to be seated on the floor and fastened thereto. The horizontal base plate may be positioned between the joists of the floor and a flooring layer laid on the joists. The inner wall base bracket may include a vertical plate to abut the inner facing surface of the wall panel and fastened thereto.

According to one aspect of the present disclosure there is provided a lintel bracket, including a first lintel plate, and a second lintel plate perpendicular to the first lintel plate, wherein the lintel bracket is provided to extend along the upper edge of the wall over the at least one door wall panel, and at least partially over the first wall panel and the second wall panel. It is envisaged that the lintel bracket may assist in enabling the wall having the discontinuous door wall panel to meet bracing requirements without requiring additional structural elements between the floor and roof structures.

In an exemplary embodiment the lintel bracket may not extend the entire length of the upper edge of the wall. In an exemplary embodiment the lintel bracket may extend at least 300 mm in both directions beyond the abutments between the at least one door wall panel and the first wall panel and the second wall panel. In an exemplary embodiment the lintel bracket may extend at least 350 mm beyond the abutments.

In an exemplary embodiment the second lintel plate may be inserted into a complementary cavity in the core of the wall panel behind the facing lining of the wall panel, with the first lintel plate resting on the upper edge of the wall. It should be appreciated that in exemplary embodiments the lintel bracket may include inner and outer second lintel plates - however, in embodiments in which the lintel bracket includes a single second lintel plate that plate may be provided behind the lining on the side of the wall on which the roof structure rests.

In an exemplary embodiment the roof bracket may be installed over the lintel bracket.

In an exemplary embodiment at least one of the wall base bracket, lintel bracket, external and/or corner bracket, top plate bracket may be manufactured in extruded lengths. In an exemplary embodiment the beam may be made of aluminium or an alloy thereof. While it should be appreciated that the beam may be made of other materials, such as steel, it is envisaged that aluminium may have benefits with regard to ease of extrusion, and weight, in comparison with steel. In an exemplary embodiment the aluminium may be an aluminium alloy such as 6106-T6, having good tensile and yield strength characteristics (particularly with regard to its strength-to-weight ratio), being capable of extrusion, and offers good finishing characteristics with regard to corrosion resistance.

In an exemplary embodiment, a modular building construction may be provided from the components herein described. The components may be provided as a kit set for assembly on site. In exemplary embodiments the kit set may include fasteners.

BRIEF DESCRIPTION OF DRAWINGS

Further aspects of the present disclosure will become apparent from the following description which is given by way of example only and with reference to the accompanying drawings in which: FIG. 1A is a first end view of an exemplary building construction; FIG. IB is a rear view of the exemplary building construction; FIG. 1C is a second end view of the exemplary building construction; FIG. ID is a front view of the exemplary building construction; FIG. IE is a front view of a plurality of wall panels for use in the exemplary building construction; FIG. IF is a top view of the wall configuration of the exemplary building construction; FIG. 2A is a top view of a floor structure for use with in exemplary building construction; FIG. 2B is a top view of the floor panel layout of the exemplary building construction; FIG. 3 is an end on cross-sectional view of the exemplary building construction; FIG. 4A is a cross-sectional view of a wall base arrangement of the exemplary building construction; FIG. 4B is a cross-sectional view of a further wall base arrangement of the exemplary building construction; FIG. 5A is a cross-sectional view of a lintel arrangement of the exemplary building construction; FIG. 5B is an enlargement of the cross-sectional view of the lintel arrangement; FIG. 6A is a cross-sectional view of an eave arrangement of the exemplary building construction; FIG. 6B is an enlargement of the cross-sectional view of the eave arrangement; FIG. 7 is a cross-sectional view of an external corner bracket of the exemplary building construction, and FIG. 8 is a cross-sectional view of an internal wall fixing arrangement of the exemplary building construction.

DETAILED DESCRIPTION FIG. 1A to IF shows an exemplary building construction 100. The building constructions comprises a plurality of external wall panels 102 to 140. In the exemplary embodiment illustrated, each of the external wall panels 102 to 140 is a sandwich-structured composite, including two steel linings sandwiching a thicker PIR core structure. In this exemplary embodiment, the steel lining linings are substantially 0.6 mm in thickness and the PIR core is substantially 75 mm in thickness. A roof structure 142 is supported by, and secured to, the external wall panels 102 to 140, as will be described further below.

Window wall panels 116, 128, and 138 accommodate windows 144a to 144c respectively. Door wall panels 132 and 134 each comprise upper door wall panels 132a and 134a, and lower door wall panels 132b and 134b, respectively. A door 146 is accommodated by the door wall panels 132 and 134.

Referring to FIG. IF, the building construction 100 includes internal wall panels 148 to 152. FIG. 2A shows a floor structure 200 of the building construction 100. The floor structure 200 includes a plurality of floor joists 202, surrounded by a boundary joist. While not illustrated, the floor structure 200 includes solid blocking to the midspan of the floor joists 202. The floor structure 200 is supported by bearers 206a on anchor piles 208 and ordinary piles. Referring to FIG. 2B, flooring sheets 212a to 212j are secured to the floor structure 200. Underfloor insulation 214 (not seen in FIG. 2A or 2B - but see FIG. 4) is inserted between the floor joists 202. FIG. 3 shows a cross-sectional view of the building construction 100, identifying areas of a wall base arrangement 400, a lintel arrangement 500, and an eave arrangement 600.

Referring to FIG. 4A, the wall base arrangement 400 includes an outer wall base bracket 402. The outer wall base bracket 402 includes an inner vertical plate 404 from which a lateral flange 406 extends. An outer vertical plate 408 extends from a distal end of the lateral flange 408. The inner vertical plate 404 is greater in height than the outer vertical plate 408. In an exemplary embodiment the outer wall base bracket 402 is manufactured of extruded aluminium alloy 6106 with temper type T6 and a 2 mm wall thickness.

The outer wall base bracket 402 is secured to the boundary joist 204 by inserting a fastener in the form of a screw through the inner vertical plate 404 into the boundary joist 204, such that the outer wall bracket 402 is elevated above the bottom edge of the boundary joist 204. The outer wall bracket 402 provides a channel in which the upright wall panel (for example wall panel 114 as illustrated) is received. A second fastener 412 is inserted through the outer vertical plate 408, panel 14, and inner vertical plate 404 into the boundary joist 204. A third fastener 414 is inserted through the panel 114 into the boundary joist 204, spaced substantially 80 mm above the second fastener 412.

An inner wall base bracket 416 is provided on the interior of the building construction 100. The inner wall base bracket 416 includes a horizontal base plate 418, and a perpendicular vertical plate 420. The vertical plate 420 is secured to the panel 114 by a rivet 420. Flooring sheets 212 are positioned over the horizontal base plate 418, and a floor fastener 424 passed through the flooring sheet 212 and the horizontal base plate 418 into the boundary joist 204. In an exemplary embodiment the inner wall base bracket 416 is manufactured of extruded aluminium alloy 6106 with temper type T6 and a 2 mm wall thickness. It should be appreciated that fasteners 410, 412, 414, 418 and 424 are provided at intervals along the length of the walls. FIG. 4B shows another embodiment of an outer wall base bracket 450, generally configured in the manner described above outer wall base bracket 402 in terms of attachment to the boundary joist 204. Outer wall base bracket 450 includes inner vertical plate 452 and outer vertical plate 454 joined by lower plate 456. A first lateral flange 458 extends from the inner vertical plate 452 at a point above the lower plate 456, with a second lateral flange 460 extending from the outer vertical plate 454 at the same height as the first lateral flange 458. The lower edge of the wall panel 114 is seated on the first lateral flange 458 and the second lateral flange 460, creating a drainage cavity 460 within the outer wall base bracket 450 below the wall panel 114.

The lower plate 456 is angled downwardly from the inner vertical plate 452 and outer vertical plate 454, with a series of drainage apertures 464 in the lowest point. The drainage apertures 464 may be, for example, 5 mm in diameter and spaced apart at 1000 mm intervals. The drainage apertures 464 allow drainage of any water collected in the outer wall base bracket 450.

Referring to FIG. 5A and FIG. 5B, the lintel arrangement 500 includes a lintel bracket 502. The lintel bracket 502 includes a first lintel plate 504 seated on the upper end of the upper door wall panel 134a, and a second lintel plate 506 perpendicular to the first lintel plate 504. The second lintel plate 506 extends into a cavity on the inner side of the upper door wall panel 134a, within the inner lining (not clearly illustrated). In an exemplary embodiment the inner wall base bracket 416 is manufactured of extruded aluminium alloy 6106 with temper type T6.

The lintel bracket 502 extends across upper door wall panels 134a and 134b, and at least 350 mm on either side over wall panels 130 and 136 respectively. A roof bracket 508 is seated on the upper end of the upper door wall panel 134a, to secure the roof structure 142 relative to the wall panels of the building constructions 100. The roof structure 142 includes a base roof panel 142a (for example, a 100 mm thick PIR panel) capped by a profiled roofing panel 142b (for example, a five rib profiled panel).

The roof bracket 508 includes an outer vertical plate 510a and an inner vertical plate 510b to be positioned on either side of the upper door wall panel 134a. The roof bracket 508 also includes an outer lateral plate 512a and an inner lateral plate 512b.

In the exemplary embodiment illustrated, the roof bracket 508 includes a cap plate comprising an outer cap plate portion 514a and inner cap plate portion 514b bridging between the outer vertical plate 510a and the inner vertical plate 510b. In this exemplary embodiment, the cap plate portions 514a and 514b are separated by performing a cut to produce a continuous thermal break 516. In an exemplary embodiment a thermal seal may be provided across the thermal break 516 to ensure a break between the roof bracket 508 and skin of the base roof panel 142a - for example a strip of joint seal tape 518.

In an exemplary embodiment the roof bracket 508 is manufactured of extruded aluminium alloy 6106 with temper type T6 and a 2 mm wall thickness.

The roof bracket 508 is secured to the upper door wall panel 134a using a rivet 520. The roof bracket 508 is secured to the base roof panel 142a using rivets 522a and 522b.

Barge flashing 524 is positioned over the side of the roof structure 142, and secured to the base roof panel 142a using rivet 526.

Roof bracket 508 is configured to be positioned on the front and rear walls of the building constructions to accommodate a mono-pitched roof structure 142. It should be appreciated that while not illustrated, the lateral plates of corresponding roof brackets for use on the side walls are perpendicular to the vertical plates. FIG. 6A and FIG. 6B illustrate the eave arrangement 600, in which wall panel 114 is secured to the base roof panel 142a using a roof bracket 602 configured in a similar manner to roof bracket 508 described above in relation to FIG. 5A and FIG. 5B. Rivets 604a and 604b secure the roof bracket 602 to the wall panel 114, and rivets 606a and 606b secure the roof bracket 602 to the base roof panel 142a. A thermal break 608 is bridged by a strip of joint seal tape 610. 'Z' flashing 612 is secured to the side of the roof structure 142 using rivets 614, and guttering 616 secured thereto. FIG. 7 illustrates an external corner bracket 700 for use in the building construction 100, securing wall panels (for example, wall panels 102 and 140) where they meet at the corners of the building construction 100.

The external corner bracket 700 includes a first external plate 702a and second external plate 702b at right angles to each other. Lateral flanges 704a and 704b extend inwardly from the first external plate 702a and the second external plate 702b respectively - against which the ends of the wall panels 102 and 140 abut. The external corner bracket 700 is secured to the wall panels 102 and 140 using rivets 706a and 706b.

An internal corner bracket 708 includes inner plates 710a and 710b and outer plates 712a and 712b in an 'X' configuration, with the ends of the wall panels 102 and 140 abutting the outer plates 712a and 712b respectively. The internal corner bracket 708 is secured to the wall panels 102 and 140 using rivets 714a and 714b.

Thermal breaks 716a and 716b are provided between the lateral flanges 704a and 704b of the external corner bracket 700, and outer plates 712a and 712b of the internal corner bracket 708, respectively. It should be appreciated that the external corner bracket 700 and internal corner bracket 708 may be manufactured in a single extrusion, and cut to produce the thermal breaks 716a and 716b. In an exemplary embodiment the external corner bracket 700 and internal corner bracket 708 are manufactured of extruded aluminium alloy 6106 with temper type T6 and a 2 mm wall thickness. FIG. 8 illustrates an internal wall fixing arrangement 800, for securing internal wall panels (for example, internal wall panel 148) to the floor structure of the building construction 100. An internal wall bracket 802 includes first vertical plate 804a and second vertical plate 804b joined by a base plate 806. The internal wall bracket 802 is seated on the flooring sheets 212, and screws 802 passed through the base plate 806 into the joists 202. The internal wall panel 148 is positioned in the internal wall bracket 802, and secured using rivets 810a and 810b respectively.

The entire disclosures of all applications, patents and publications cited above and below, if any, are herein incorporated by reference.

Reference to any prior art in this specification is not, and should not be taken as, an acknowledgement or any form of suggestion that that prior art forms part of the common general knowledge in the field of endeavour in any country in the world.

The invention may also be said broadly to consist in the parts, elements and features referred to or indicated in the specification of the application, individually or collectively, in any or all combinations of two or more of said parts, elements or features.

Where in the foregoing description reference has been made to integers or components having known equivalents thereof, those integers are herein incorporated as if individually set forth.

It should be noted that various changes and modifications to the presently preferred embodiments described herein will be apparent to those skilled in the art. Such changes and modifications may be made without departing from the spirit and scope of the invention and without diminishing its attendant advantages. It is therefore intended that such changes and modifications be included within the present invention.

Aspects of the present invention have been described by way of example only and it should be appreciated that modifications and additions may be made thereto without departing from the scope thereof as defined in the appended claims.

Claims (46)

1. A building construction, including: a floor structure, having a side surface around its boundary, wherein the side surface includes an upper edge and a lower edge; a wall base bracket including a lateral flange, the wall base bracket secured to the floor structure such that the lateral flange extends outwardly from the side surface from a position displaced between the upper edge and the lower edge; and at least one upright wall panel supported by the lateral flange of the wall base bracket.

2. The building construction of claim 1, wherein the wall panel is a sandwich-structured composite, including two skins sandwiching a thicker core structure.

3. The building construction of claim 2, wherein the core structure is made of a foam polyisocyanurate.

4. The building construction of any one of claims 1 to 3, wherein the wall base bracket includes an inner vertical plate from which the lateral flange extends, and an outer vertical plate spaced laterally from the inner vertical plate.

5. The building construction of claim 4, wherein the height of the inner vertical plate above the lateral flange is greater than that of the outer vertical plate.

6. The building construction of claim 4 or claim 5, wherein a first wall base bracket fastener is passed through the inner vertical plate into the side surface of the floor structure.

7. The building construction of claim 6, wherein a second wall base bracket fastener is passed through the outer vertical plate, upright wall panel, and inner vertical plate into the side surface of the floor structure.

8. The building construction of claim 7, wherein the second wall base bracket fastener is vertically spaced above the lower edge of the side surface of the floor structure by a distance within the range of 40 mm to 60 mm.

9. The building construction of claim 7 or claim 8, wherein a wall base fastener is passed through the panel into the side surface of the floor structure above the wall base bracket.

10. The building construction of claim 9, wherein the wall base fastener is vertically spaced from the second wall base bracket fastener by a distance within the range of 40 mm to 120 mm.

11. The building construction of any one of claims 4 to 10, wherein the lateral flange is a first lateral flange and the wall base bracket includes a second lateral flange extending from the outer vertical plate towards the first lateral flange, with a gap therebetween.

12. The building construction of claim 11, wherein the wall base bracket includes a drainage chamber below the lateral flange, including a plurality of drainage apertures.

13. The building construction of claim 12, wherein at least one inner surface of the drainage chamber is angled towards the drainage apertures.

14. The building construction of any one of claims 1 to 13, wherein the wall base bracket is provided to the floor structure such that the lateral flange is at least 40 mm above the lower edge of the side surface of the floor structure.

15. The building construction of any one of claims 1 to 14, wherein the building contruction includes a plurality of upright wall panels, and at least one external corner bracket provided between wall panels at corners of the building construction.

16. The building construction of any one of claims 1 to 15, including a roof structure supported by the at least one upright wall panel.

17. The building construction of claim 16, wherein the roof structure includes at least one base panel, and a profiled roofing panel on an upper side of the base panel.

18. The building construction of claim 16 or claim 17, wherein the building construction includes at least one roof bracket configured to secure the roof structure to the at least one upright wall panel.

19. The building construction of claim 18, wherein roof bracket includes an inner vertical plate and an outer vertical plate to be positioned on either side of the at least one upright wall panel, and an inner lateral flange and an outer lateral flange to be secured to the roof structure.

20. The building construction of claim 19, wherein the roof bracket includes a thermal break between the inner lateral flange and an outer lateral flange, and the building construction includes a seal across the thermal break between the roof bracket and the roof structure.

21. The building construction of any one of claims 1 to 20, wherein the at least one upright wall panel includes at least one door wall panel configured to receive a door, a first wall panel adjacent the at least one door wall panel on a first side, and a second wall panel adjacent the at least one door wall panel on a second side, and the building construction includes a lintel bracket, including a first lintel plate, and a second lintel plate perpendicular to the first lintel plate, wherein the lintel bracket is provided to extend along the at least one door wall panel, and at least partially over the first wall panel and the second wall panel.

22. The building construction of claim 21, wherein the lintel bracket is configured to extend at least 300 mm in both directions beyond abutments between the at least one door wall panel and the first wall panel and the second wall panel.

23. The building construction of claim 21 or claim 22, wherein the second lintel plate is configured to inserted into a complementary cavity in the at least one door wall panel, the first wall panel, and the second wall panel.

24. A method of securing a panel relative to a floor structure having a side surface around its boundary, wherein the side surface includes an upper edge and a lower edge, the method including: providing a wall base bracket to the floor structure such that a lateral flange of the wall base bracket extends outwardly from the side surface from a position displaced between the upper edge and the lower edge; supporting the panel on the lateral flange of the wall base bracket; and fastening the panel to the floor structure.

25. The method of claim 24, the wall base bracket includes an inner vertical plate from which the lateral flange extends, and an outer vertical plate spaced laterally from the inner vertical plate, and fastening the panel to the floor structure includes passing a first wall base bracket fastener through the inner vertical plate into the side surface of the floor structure.

26. The method of claim 25, including passing a second wall base bracket fastener through the outer vertical plate, panel, and inner vertical plate into the side surface of the floor structure.

27. The method of claim 26, wherein the second wall base bracket fastener is vertically spaced above the lower edge of the side surface of the floor structure by a distance within the range of 40 mm to 60 mm.

28. The method of claim 26 or claim 27, including passing a wall base fastener through the panel into the side surface of the floor structure above the wall base bracket.

29. The method of claim 28, wherein the wall base fastener is vertically spaced from the second wall base bracket fastener by a distance within the range of 40 mm to 120 mm.

30. A kit set for assembling a building construction, including: at least one wall base bracket including a lateral flange, the wall base bracket configured to be secured to a floor structure having a side surface around its boundary, wherein the side surface includes an upper edge and a lower edge, such that the lateral flange extends outwardly from the side surface from a position displaced between the upper edge and the lower edge; and at least one upright wall panel to be supported by the lateral flange of the wall base bracket.

31. The kit set of claim 30, wherein the at least one wall panel is a sandwich-structured composite, including two skins sandwiching a thicker core structure.

32. The kit set of claim 31, wherein the core structure is made of a foam polyisocyanurate.

33. The kit set of any one of claims 30 to 33, wherein the wall base bracket includes an inner vertical plate from which the lateral flange extends, and an outer vertical plate spaced laterally from the inner vertical plate.

34. The kit set of claim 33, wherein the height of the inner vertical plate above the lateral flange is greater than that of the outer vertical plate.

35. The kit set of claim 33 or claim 34, wherein the lateral flange is a first lateral flange and the wall base bracket includes a second lateral flange extending from the outer vertical plate towards the first lateral flange, with a gap therebetween.

36. The kit set of claim 35, wherein the wall base bracket includes a drainage chamber below the lateral flange, including a plurality of drainage apertures.

37. The kit set of claim 36, wherein at least one inner surface of the drainage chamber is angled towards the drainage apertures.

38. The kit set of any one of claims 30 to 37, wherein the kit set includes a plurality of upright wall panels, and at least one external corner bracket to be secured between wall panels at corners of the building construction.

39. The kit set of any one of claims 30 to 38, including a roof structure configured to be supported by the at least one upright wall panel.

40. The kit set of claim 39, wherein the roof structure includes at least one base panel, and a profiled roofing panel on an upper side of the base panel.

41. The kit set of claim 38 or claim 39, including at least one roof bracket configured to secure the roof structure to the at least one upright wall panel.

42. The kit set of claim 41, wherein roof bracket includes an inner vertical plate and an outer vertical plate to be positioned on either side of the at least one upright wall panel, and an inner lateral flange and an outer lateral flange to be secured to the roof structure.

43. The kit set of claim 42, wherein the roof bracket includes a thermal break between the inner lateral flange and an outer lateral flange.

44. The kit set of any one of claims 30 to 43, wherein the at least one upright wall panel includes at least one door wall panel configured to receive a door, a first wall panel to be positioned adjacent the at least one door wall panel on a first side, and a second wall panel to be positioned adjacent the at least one door wall panel on a second side, and the kit set includes a lintel bracket, including a first lintel plate, and a second lintel plate perpendicular to the first lintel plate, wherein the lintel bracket is configured to extend along the at least one door wall panel, and at least partially over the first wall panel and the second wall panel.

45. The kit set of claim 44, wherein the lintel bracket is configured to extend at least 300 mm in both directions beyond abutments between the at least one door wall panel and the first wall panel and the second wall panel.

46. The kit set of claim 44 or claim 45, wherein the second lintel plate is configured to inserted into a complementary cavity in the at least one door wall panel, the first wall panel, and the second wall panel. at least one door wall panel configured to receive a door, wherein the door wall panel is discontinuous between the upper edge and the lower edge of the wall.