AU2019204861B2 - Hinged Roof Module - Google Patents

Abstract

#$%^&*AU2019204861B220250821.pdf##### Abstract 5 A prefabricated roof module comprising a ceiling subassembly and a rafter subassembly is transformable between a flat pack configuration for ease of transportation and an inclined in-use configuration for forming the roof or roof support of a building in which 10 the ceiling subassembly comprises a multitude of spaced apart substantially parallel ceiling framework members hingedly connected at one respective ends collectively to respective one ends of spaced apart substantially parallel rafter members forming the rafter subassembly. Different 15 length webs movably attached to either the ceiling framework members or the rafter framework members at spaced apart locations extend between the ceiling subassembly and the rafter subassembly to support the rafter subassembly in the inclined in use configuration to 20 form the roof or roof support of the building. The advantage of the roof module is that after being manufactured in an off-site manufacturing facility, the module can be lifted into position and transformed into the inclined in use configuration to save time and money 25 during construction of the building. 11503789_1 (GHMatters) P108934.AU.1 5/07/19 2019 Abstract 2019204861 05 Jul 5 A prefabricated roof module comprising a ceiling subassembly and a rafter subassembly is transformable between a flat pack configuration for ease of transportation and an inclined in-use configuration for forming the roof or roof support of a building in which 10 the ceiling subassembly comprises a multitude of spaced apart substantially parallel ceiling framework members hingedly connected at one respective ends collectively to respective one ends of spaced apart substantially parallel rafter members forming the rafter subassembly. Different 15 length webs movably attached to either the ceiling framework members or the rafter framework members at spaced apart locations extend between the ceiling subassembly and the rafter subassembly to support the rafter subassembly in the inclined in use configuration to 20 form the roof or roof support of the building. The advantage of the roof module is that after being manufactured in an off-site manufacturing facility, the module can be lifted into position and transformed into the inclined in use configuration to save time and money 25 during construction of the building. 11503789_1 (GHMatters) P108934.AU.1 5/07/19 4/5 4 12 6 2 10 32 1434 34 32 34 30 14 12 30 32 35 35 35 16 32 14 14 34 FIGURE 8 FIGURE 9 FIGURE 10 FIGURE 11 20 19 20 48 61 0 5 Ju l 2 01 905 Jul 2019 4/5 14 32 35 35 16 35 32 2019204861 14 FIGURE 8 10 34 32 34 14 FIGURE 9 32 3034 34 12 14 FIGURE 10 4 30 12 6 FIGURE 11 2

Description

05 Jul 2019

4/5 4/5

14 14 32 32 35 35 35 35

16 16 35 2019204861

2019204861

35 32 32

14 14 FIGURE FIGURE 88

10 10 34 34 32 32

34 14 14 34 FIGURE FIGURE 99

32 30 30 32 34 34 34 34

14 12 12 14 FIGURE 10 FIGURE 10

4 4 30 30

12 12

6 6

FIGURE 11 FIGURE 11 2

HINGED ROOF MODULE

FIELD 5 The present description relates to prefabricated 2019204861

building products and to the manufacture of such prefabricated building products.

10 In one form the present description relates to building products in the form of modules or assemblies which contain various components interconnected to one another to form the building product, and to methods of manufacturing the modules or assemblies from the various 15 components and installing the modules or assemblies in the form of the building products to construct building structures.

In one form the present description relates to 20 modules or assemblies which can be converted or transformed between two different configurations, one configuration being suitable for transporting the modules or assemblies from one location to another location, and the other configuration being an in use configuration 25 corresponding to the completed and installed configuration of the module or assembly on or within the building structure.

Embodiments of the present description find 30 particular application as a roof module or assembly for use in constructing a building structure which module or assembly is manufactured in a manufacturing facility for transportation to a building site when in a first configuration, being a collapsed or retracted or flat 35 configuration, and after location within the building structure in the first configuration, the roof module or assembly is able to be transformed so as to be lifted to

21935052_1

adopt an expanded or in use configuration for forming the roof or part of the support structure of the roof of the building structure.

5 Although specific embodiments of the roof module or assembly made from a variety of different components will 2019204861

be specifically described in the present description, including ways of transforming the roof module or assembly between different configurations, it is to be noted that 10 the scope of protection is not restricted to the described embodiments or methods, but rather the scope of protection is more extensive so as to include other forms, modifications and variations of the module or assembly, and of the components from which the various modules or 15 assemblies are manufactured, and the use of the various forms of the module or assembly in applications other than specifically described.

BACKGROUND 20 There is an increasing demand to develop innovative building products, and their manufacture and/or use in constructing building structures, in order to reduce costs associated with producing the building products 25 themselves, and their installation in building structures in order to also reduce the cost associated with constructing the building structures. One of the activities which contribute to the high cost of constructing a building structure is the cost of the 30 labour component of using experience and skilled tradespersons at the building site to construct the building structure. Although there have been previous attempts at reducing the labour costs of construction by having prefabricated building products made in a factory 35 for transportation to a building site, such attempts have not been always entirely satisfactory due in part to the prefabricated products still requiring the services of

21935052_1

experienced and skilled tradespersons on site to install the prefabricated products at the building site, usually requiring more or less customisation of the pre-fabricated product to correctly and/or functionally fit the building 5 product at the specific location within the building structure. Therefore, there is a need for innovative 2019204861

prefabricated building products which are adapted to be more efficiently and/or more readily installed by less experienced and skilled personnel at the building site by 10 requiring less customisation or adaption to the specific location within the building structure, in order to reduce the overall cost of construction of the building.

The present description may provide an innovative 15 building product which is adapted for ease of installation.

The present description may also provide a method of manufacturing a building product which is adapted to be 20 more readily and/or efficiently installed within a building structure, and typically at a lower cost.

The present description may also provide an innovative method of installing a building product within 25 a building structure allowing installation of the building product by less skilled and/or experienced tradespersons, and typically taking a reduced amount of time.

It is to be understood that, for any prior art 30 referred to herein, such reference does not constitute an admission that the prior art forms a part of the common general knowledge in the art, in Australia or any other country

35 SUMMARY

Disclosed herein is a roof module transformable

21935052_1

between a first configuration and a second configuration, the roof module for forming a roof structure of a building. The roof module can comprise: 5 a ceiling subassembly including individual ceiling elements interconnected to one another to form the ceiling 2019204861

subassembly, a rafter subassembly including individual rafter elements interconnected to one another to form the rafter 10 subassembly and interconnecting elements movably connected to selected rafter elements of the rafter subassembly, the ceiling subassembly and the rafter subassembly being movable with respect to one another for facilitating transformation of the roof module between the first 15 configuration and the second configuration, the individual rafter elements and the individual interconnecting elements being movable in unison when the rafter subassembly moves from the first configuration to the second configuration, 20 the interconnecting elements being movable with respect to the selected rafter elements between a first position and a second position in response to movement of the rafter subassembly with respect to the ceiling subassembly from the first configuration to the second 25 configuration, the first position adopted by the interconnecting elements corresponding to the first configuration of the roof module and the second position adopted by the interconnecting elements corresponding to the second 30 configuration of the roof module, and when in the second position the interconnecting elements maintain the rafter subassembly in the second configuration with respect to the ceiling subassembly to form the roof structure of the building in which the roof 35 module is installed; wherein the roof module further comprises at least one lifting fixture that comprises:

21935052_1

- at least one lifting trimmer that is connected to extend transversely of the roof module; and - at least one lifting bracket connected to the lifting trimmer, the at least one lifting bracket being 5 configured for releasable connection to a chain or lifting sling of a crane or hoist. 2019204861

Also disclosed herein is a method of installing a roof module on or within a building to form a roof 10 structure of the building. The roof module can be as set forth above. The method of installing the roof module can comprise: lifting the roof module by a crane or hoist using the 15 at least one lifting fixture; locating the roof module when in the first configuration at a required location on or within the building, attaching the roof module to the building to maintain 20 the ceiling subassembly fixedly in place, moving the rafter subassembly with respect to the ceiling subassembly so that the roof module adopts the second configuration, moving the interconnecting elements of the rafter 25 subassembly from the respective first positions to the respective second position, fixedly locating the interconnecting elements to the ceiling subassembly when the rafter subassembly is in the second position to maintain the roof module in the second 30 configuration to form a support for the roof of the building.

Also disclosed herein is a method of manufacturing a roof module for forming a roof structure of a building. 35 The method can comprise: forming a ceiling subassembly of ceiling elements interconnected to one another to form the ceiling

21935052_1

subassembly, forming a rafter subassembly of rafter elements interconnected to one another to form the rafter subassembly and interconnecting elements movably connected 5 to selected rafter elements of the rafter subassembly, attaching at least one lifting fixture to the roof 2019204861

module, the at least one lifting fixture being as set forth above; connecting the ceiling subassembly and the rafter 10 subassembly together to form the roof module, the ceiling subassembly and the rafter subassembly being movable with respect to one another for facilitating conversion of the roof module between a first configuration and a second configuration, and 15 the rafter elements and the interconnecting elements being movable in unison in response to movement of the rafter subassembly with respect to the ceiling subassembly from the first configuration to the second configuration, the interconnecting elements being movable with 20 respect to the selected framework elements between a first position and a second position in response to movement of the rafter subassembly with respect to the ceiling subassembly, the first position adopted by the interconnecting 25 elements corresponding to the first configuration of the roof module and the second position adopted by the interconnecting elements corresponding to the second configuration of the roof module, wherein 30 when in the second position the interconnecting elements maintain the rafter subassembly in the second configuration with respect to the ceiling subassembly to form the roof structure of the building having the roof module. 35 Also disclosed herein is a roof module transformable between a first configuration and a second configuration,

21935052_1

the roof module for forming a roof structure of a building. The roof module can comprise: a ceiling subassembly including individual ceiling 5 elements interconnected to one another to form the ceiling subassembly, the ceiling subassembly further comprising a 2019204861

horizontal ceiling attached to the underside or under surface collectively of the ceiling elements such that, when the roof module is installed on or within a building 10 to form a roof structure of the building, the horizontal ceiling is also installed, a rafter subassembly including individual rafter elements interconnected to one another to form the rafter subassembly and interconnecting elements movably connected 15 to selected rafter elements of the rafter subassembly, the ceiling subassembly and the rafter subassembly being movable with respect to one another for facilitating transformation of the roof module between the first configuration and the second configuration, 20 the individual rafter elements and the individual interconnecting elements being movable in unison when the rafter subassembly moves from the first configuration to the second configuration, the interconnecting elements being movable with 25 respect to the selected rafter elements between a first position and a second position in response to movement of the rafter subassembly with respect to the ceiling subassembly from the first configuration to the second configuration, 30 the first position adopted by the interconnecting elements corresponding to the first configuration of the roof module and the second position adopted by the interconnecting elements corresponding to the second configuration of the roof module, and 35 when in the second position the interconnecting elements maintain the rafter subassembly in the second configuration with respect to the ceiling subassembly to

21935052_1

form the roof structure of the building in which the roof module is installed.

BRIEF DESCRIPTION OF EMBODIMENTS 5 In one form the roof module/assembly is a roof 2019204861

cassette. In one form the roof cassette is a self- contained module or assembly containing substantially all of the components required to form the roof or a 10 supporting structure for the roof of a building, typically in the form of a domestic dwelling, such as a house, residential unit or similar.

In one form the ceiling subassembly is an 15 interconnected array of individual framework elements forming a ceiling or part of a ceiling of the building. Typically, the individual framework elements of the ceiling subassembly are ceiling framework elements, preferably ceiling joists, for forming the ceiling of the 20 building structure or supports for the ceiling of the building. In one form the ceiling joists are aligned with one another to form a substantially planar structure collectively. More typically, the ceiling joists are aligned to be substantially parallel to each other. 25 In one form the rafter subassembly is an interconnected array of individual framework elements or members forming the roof or roof support of the building structure, typically the support for the roof covering or 30 outer skin or weatherproofing membrane of the roof of the building or the like. Typically, the individual framework elements or members of the rafter subassembly are roof elements or members, typically roof joists or rafters for supporting the weatherproof, weather resistant, outer 35 covering, membrane, facade, cladding or similar of the roof, such as for example, metal roofing panels, galvanised iron sheets, tiles, strips or similar.

21935052_1

In one form the ceiling subassembly and rafter subassembly are hinged to one another, typically hinged through suitable fasteners, such as for example screws, 5 pins, bolts, pegs, or the like, preferably Tek screws or similar, more preferably No. 14 type 17 screws having a 2019204861

length of 70 mm for use with 35 mm thick components, or a length of 90 mm for use with 45 mm thick components.

10 In one form the ceiling joists remain stationary after the roof module is located and securely fastened or anchored in position on top of the building structure, typically on top of the load bearing walls of the building structure. 15 In one form the rafters are movable, typically movable with respect to the ceiling joists which remain stationary during transformation of the roof module from the first configuration to the second configuration as the 20 rafters move. In one form the rafters have a first end which is movably connected or hinged to a ceiling joist allowing relative pivoting movement of the rafter with respect to the ceiling joist, and a second end which is movable so as to be spaced apart from the ceiling joist to 25 which the first end is movably attached. Respective one ends of the individual rafters are moveable with respect to the fixed respective ends of the stationary ceiling joists. Typically, the rafter sub assembly is moved with respect to the ceiling subassembly by one end of the 30 rafter sub assembly being lifted by a suitable lifting device, such as for example, a crane, hoist, or similar.

In one form the first configuration of the roof module is a flat or planar configuration, a collapsed 35 configuration, a retracted configuration, or a transport configuration suitable for transportation from one location to another location, typically transportation by

21935052_1

road vehicles, from the manufacturing facility at which the roof module is pre-fabricated to the building site at which the roof module is installed in or on the building.

5 In the flat configuration individual rafters are oriented in side by side spaced apart relationship with 2019204861

each other and with individual ceiling joists so as to occupy a minimum volume. In one form respective ends of individual ceiling joists are connected to respective ends 10 of individual rafters allowing displacement of the other ends of the rafters from the ceiling joists during installation and/or transformation of the roof module for forming the roof of the building.

15 In one form the second configuration is an expanded configuration, an inclined configuration, a sloping configuration, a support configuration, an installed configuration or an in use configuration in which the plane of the rafters is inclined to the plane of the 20 ceiling joists, typically angularly inclined so as to form an inclined or sloping support structure for the roof of the building and/or the roof of the building. In one form the angularly inclined support structure is a skillion roof or similar, or a support structure for a skillion 25 roof.

In one form the interconnecting elements of the rafter subassembly are webs, props, supports, stubs, studs, noggins, battens, girts, purlins or the like. 30 Preferably, the interconnecting elements are lengths of timber, typically a set of webs, more typically a set of webs having different lengths. The webs are located at spaced apart locations along the length of the rafter, typically at irregularly spaced apart intervals. In forms, 35 the different lengths of the individual timber webs are in accordance with the different location of where the webs are connected to the individual respective rafters. It is

21935052_1

to be noted that the length of the individual timber webs and the locations of the individual timber webs are arranged and selected so that the webs collectively support the rafter at the required angle of inclination. 5 In one form the ceiling subassembly includes one or 2019204861

more mounts facilitating attachment of the interconnecting elements to the ceiling joists. The mounts can be connected to the ceiling joists at the manufacturing 10 facility or can be attached at the building site. Although the mounts can have any convenient or desirable form, one form is a mounting block, typically in the form of a block or short length of timber, preferably of a generally rectilinear shape, such as for example a rectangular prism 15 or parallelepiped. A preferred form of timber is LVL or is a suitable grade of a suitable softwood, such as for example, pine or similar, including Pinus Radiata. Preferably, the mounting block is located on the side of the ceiling joist opposite to the side on which the rafter 20 is located aligned against the ceiling joist in side-by- side parallel relationship thereto.

In one form the rafter subassembly includes a covering for forming the roof of the building, typically 25 the outer upper surface of the roof. The covering can be made from any suitable or convenient material, and be of any suitable or convenient type, style, form, size, thickness, material or the like. One preferred form of covering includes boards, sheets, panels, strips, lengths, 30 decking or similar, such as for example sheets or panels of oriented strand board (OSB) or other engineered timber or wood product in the form of boards, panels, sheets or similar. Another form of covering includes metal decking or metal sheets or a metal skin. Preferably, the covering 35 includes two or more layers of different materials. One form of a combination of different materials includes Enviroseal sarking over OSB, preferably by wrapping the

21935052_1

Enviroseal sarking over the OSB for weather tightness, more preferably 6 mm OSB3 stapled at 150 mm c/c to rafters with the Enviroseal over to provide weather tightness when installed. It is to be noted that such combinations also 5 provide rafter bracing thereby eliminating the need for separate additional wind bracing of the type usually 2019204861

provided by metal braces, metal ties or steel strips or other suitable reinforcing in some embodiments.

10 Forms of the roof module are provided with covering to improve or enhance the weather resistance, waterproofing, weather tightness or similar of the roof. Forms of the covering include membranes, films, sheets, decking, panels or similar. 15 In forms of the roof module, the length of the individual rafters is less than, equal to or greater than the length of the corresponding ceiling joist to which the rafter is movably connected. Preferably, the length of the 20 individual rafters is greater than the length of the corresponding ceiling joists. More preferably, the overshoot of the length of the rafter as compared to the length of the ceiling joist is in accordance with the amount of inclination of the sloping roof so that the ends 25 of the rafters extend beyond the line of the ends of the ceiling joists. It is to be noted that the relationship between the lengths of the rafters as compared to the lengths of the ceiling joists is determined by the amount of overhang of the eaves of the roof or roof structure of 30 the building in accordance with the final position of the module and/or the design of the building.

In forms of the installed roof module, the ceiling joists collectively are substantially horizontal so as to 35 support a horizontal ceiling of the building structure, typically attached to the underside or under surface collectively of the ceiling joists, whereas the rafters

21935052_1

collectively are substantially inclined to the ceiling joists to provide support for the outer covering of the inclined roof, typically in the form of a skillion roof.

5 In forms of the roof module, the ceiling joists are collectively planar or form a planar support surface. In 2019204861

forms of the roof module, the rafters collectively form a planar support surface for supporting the outer covering of the roof, albeit an inclined planar surface. 10 In forms of the installed roof module when in the second configuration or expanded, sloping or in use configuration, the webs are oriented to extend substantially vertically between the horizontal ceiling 15 joists at the lower ends thereof, collectively, and the inclined rafters at the upper ends thereof, collectively.

Forms of the rafter subassembly optionally include reinforcement or a reinforcing element or member or 20 device. Although the reinforcement, or multiple reinforcements, if provided, can have any suitable or desirable form or be of any suitable or desirable shape, type, style, size, length or the like, it is to be noted that one preferred form of the reinforcement is a brace, 25 more typically a cross brace. Preferably, the reinforcement is bracing. More preferably, the bracing is an elongate strip or length of metal having a suitable or convenient shape or profile. Preferably, the bracing includes Speedwell braces arranged in a suitable pattern 30 or array, such as for example, in a generally cruciform shape, crisscross pattern, overlapping pattern, superposed array or zigzag array. It is to be noted that reinforcement, typically in the form of steel wind bracing or tie is not usually required for the rafters when the 35 modules are braced with the OSB. In forms, the end vertical webs are braced on site in accordance with the relevant regulation or prescription of the Building Code

21935052_1

of Australia (BCA), such as for example, in accordance with AS4440 to tie the rafter bracing of the module to the top plate.

5 Forms of the rafter subassembly include multiple elongate braces extending obliquely from one side of the 2019204861

subassembly to the opposite side of the subassembly in a criss-cross pattern or overlapping array where individual braces overlap adjacent braces in order to impart rigidity 10 and strength to the subassembly.

It is to be noted that any form of suitable or desirable external covering of the roof can be used in the construction of the building structure, such as for 15 example, metal panels, metal sheets, metal decking, tiles, shingles, slates, or the like.

BRIEF DESCRIPTION OF DRAWINGS

20 Embodiments of the roof module of the present description will now be described and illustrated more fully by way of example only with reference to the accompanying drawings in which

25 Figure 1 is a schematic side elevation view of one form of a ceiling joist,

Figure 2 is a schematic side elevation view of one form of a rafter, 30 Figure 3 is a schematic side elevation view of the form of the rafter of figure 2 having webs depending down therefrom shown in an inclined or in use configuration,

35 Figure 4 is a schematic side elevation view of the form of the rafter of figure 2 in which the webs are folded in parallel alignment with the rafter for forming a

21935052_1

transport or flat configuration,

Figure 5 is a schematic side elevation view of one form of roof module shown in a lifted or in-use 5 configuration, 2019204861

Figure 6 is a schematic top plan view of another form of roof module in a flat or transport configuration,

10 Figure 7 is a schematic plan view of further form of roof module in a flat or transport configuration,

Figure 8 is a schematic plan view of further form of roof module in a flat or transport configuration, 15 Figure 9 is a schematic side elevation view of the roof module of figure 8 in a flat or transport configuration,

20 Figure 10 is a schematic side elevation view of the roof module of figure 6 in a lifted or in-use configuration,

Figure 11 is a schematic side elevation view of one 25 form of building structure having the roof module of figure 6 in the lifted configuration installed in use at the top of a building forming a support for a skillion roof,

30 Figure 12 is a schematic partial fragmentary top plan view of one form of a ceiling cassette layout having a covering on the upper surface thereof,

Figure 13 is a schematic side elevation view of 35 section SS of the ceiling cassette of figure 12,

Figure 14 is an enlarged schematic section view of

21935052_1

detail B of figure 13,

Figure 15 is an enlarged schematic elevation view of detail section TT of figure 13, 5 Figure 16 is a schematic side view of detail A in the 2019204861

form of a packer of the cassette of figure 12.

SPECIFIC EMBODIMENTS 10 Forms of the roof module, their manufacture and their use and installation in forming the roof of a suitable building structure will now be described with reference to the accompanying drawings. 15 One form of building structure, generally denoted as 2, has an inclined roof, in the form of skillion roof 4 installed upon a wall structure defining separate rooms 6 of building 2. A wall structure defining separate rooms is 20 typically a load bearing wall 8. Skillion roof 4 is formed by one form of a roof module, generally denoted as 10.

One form of roof module 10, includes as the main parts, a ceiling joist subassembly and a rafter 25 subassembly movably interconnected to one another to allow the roof module to move between a first configuration being a flat, retracted or collapsed configuration, typically as transported in a transport configuration, and a second configuration being in an expanded, inclined or 30 supporting configuration, typically as installed in an in- use configuration. The ceiling joist subassembly and the rafter subassembly are both generally rectilinear, such as, being in the form of a generally rectangular array in the form of a grid of longitudinal and transverse 35 framework elements or members arranged substantially perpendicularly to one another.

21935052_1

One form of the ceiling subassembly, generally denoted as 12, includes a multitude of longitudinally extending individual ceiling framework members in the form of ceiling joists 14 arranged in regularly spaced apart 5 substantially parallel relationship to one another extending longitudinally of the subassembly from one end 2019204861

or transverse side of ceiling subassembly 12 to the opposite end or transverse side of ceiling subassembly 12 in parallel relationship to the longitudinal sides of 10 subassembly 12 so as to extend in spaced apart intervals from one longitudinal side of the subassembly to the opposite longitudinal side of the subassembly, as shown more particularly in figures 6, 7 and 8.

15 In one form each ceiling joist 14 is of a length in accordance with the length of the roof of the building structure upon which the roof module is to be installed so that the one roof module spans the required length and area of the building to form the roof. However, it is to 20 be noted that 2 or more roof modules may be located in side-by-side relationship or in end to end relationship or both depending upon the area of the roof. Typically, joist 14 is of a generally square or rectangular profile or cross-section. Preferably, ceiling joist 14 is a timber 25 joist or is a length of laminated veneer lumber (LVL) or other suitable engineered timber or wood product. However, it is to be noted that joist 14 can be made from any suitable or convenient material and be of any suitable or convenient shape, size, profile, style, length or the 30 like.

Typically, one overall length of joist 14 is 11,670 mm, and joists 14 are located at 600 mm centres. Joist 14 can be a single length of LVL or can be multiple lengths 35 of LVL or other suitable timber interconnected in end to end relationship collinearly to form the joist. It is to be noted that the lengths of individual ceiling joists can

21935052_1

be in the range from about 3 m to about 20 m.

Ceiling subassembly 12 includes cross members or elements in the form of plates, preferably top plates, and 5 more preferably ribbon plates 16, extending between the opposite respective outer joists 14 forming the 2019204861

longitudinally extending sides, ends or edges of subassembly 12. Ribbon plates 16 are generally square or rectangular in cross-section or profile. Again, the length 10 of ribbon plate 16 is in accordance with the width of roof module 10 so as to span the width of the roof module, and to extend beyond the location of one of the outer longitudinal side joists, such as for example, as shown in figure 7. 15 Although ribbon plate 16 can have any suitable or convenient size or length, a typical ribbon plate 16 is a length of 90x35 mm MGP10 (Machined Graded Pine) or MGP12 or LVL or similar engineered wood product. - the width of 20 the module, placed at required and available load-bearing wall locations in accordance with the design of the building.

It is to be noted that ribbon plate 16 can be made 25 from any suitable or convenient material. Also, it is to be noted that each ribbon plate 16 is a single length or comprises two or more lengths of timber interconnected together collinearly in end to end relationship to one another to extend from one longitudinal side to the 30 opposite longitudinal side of roof module 10. Although ribbon plates 16 can be of any suitable or convenient length, a typical length is 2700 mm. In use, ribbon plates 16 are located within module 10 in accordance with the location of load bearing walls forming the walls of the 35 rooms of the building structure upon which the roof module is to be installed. Typically, ribbon plates 16 are located at variable centres to one another in accordance

21935052_1

with the size of the individual room defined between the load-bearing walls of the building structure. Typical spacing include 3850 mm, 2610 mm and 4850 mm.

5 One form of the rafter subassembly, generally denoted as 30, will now be described. 2019204861

Rafter subassembly 30 includes a multitude of longitudinally extending individual rafters 32 arranged in 10 regularly spaced apart substantially parallel relationship to one another extending longitudinally of the subassembly from one end or transverse side of rafter subassembly 30 to the opposite end or transverse side of rafter subassembly 30 in parallel relationship to the 15 longitudinal sides of subassembly 30 so as to extend in spaced apart intervals from one longitudinal side of the subassembly to the opposite longitudinal side of the subassembly, as shown more particularly in figures 6, 7 and 8. 20 In one form each rafter 32 is of a length in accordance with the length of the roof of the building structure upon which the roof module is to be installed so that the one roof module spans at the required length and 25 area of the building to form the roof. Typically, rafter 32 is of a generally square or rectangular profile or cross-section. Preferably, rafter 32 is a length of timber or is a length of laminated veneer lumber (LVL) or other engineered timber or wood product or the like. However, it 30 is to be noted that rafter 32 can be made from any suitable or convenient material and be of any suitable or convenient shape, size, profile, style, length or the like. In one form the rafters and ceiling joists are Machined Graded Pine or LVL, usually 35mm thick, or 35 alternatively 45 mm thick, with depths that vary, such as for example, being typically 90 mm, 120 mm, 140 mm or 190 mm. Additionally, the rafters and ceiling joists are

21935052_1

designed from first principle to suit the specific spacing of the load bearing wall locations and relevant roof and ceiling loads of the particular building structure into which the module is to be installed. Further, it is to be 5 noted that components made from pine longer than 6 m are nail plate joined whereas components made from LVL longer 2019204861

than 12 m are nail plate joined.

Typically, one overall length of rafter 32 is 11,945 10 mm, and rafters 32 are located at 600 mm centres from one another. Each rafter 32 can be a single length of LVL or can be multiple lengths of LVL or other suitable timber interconnected in end to end relationship collinearly to form the rafter. 15 Rafter subassembly 30 also includes multiple interconnecting elements for movably interconnecting ceiling joist subassembly 12 and rafter subassembly 30 to one another. In one form the interconnecting elements 20 include webs 34, props, stops, spacers, struts or similar movably connected at spaced apart locations along the length of selected rafters 32. In one form each rafter 32 is provided with a set of webs 34 located at spaced apart different locations along the longitudinal length thereof 25 and at different centres, as shown more particularly in figures 3, 5 and 10. In one form each rafter 32 is provided with three individual webs 34 with one web being located at, or towards or near to one end of rafter 32, being the “heel” end of the rafter, and a second web being 30 towards one side of about the midpoint of the rafter, and a third web being located towards the other side of about the midpoint of the rafter, particularly as shown in figures 3, 5, 7 and 10.

35 It is to be noted that web 34 can be made from any suitable or convenient material and be of any suitable or convenient shape, size, profile, style, length or the

21935052_1

like. Preferably, web 34 is a timber web or is a length of laminated veneer lumber (LVL) or other engineered timber or wood product. The length of individual webs 34 is in accordance with a combination of the precise location of 5 each individual web and the angle of inclination of rafter assembly 30 when in the lifted or in use configuration for 2019204861

forming the skillion roof of the building structure.

Typically, each web has a square or rectangular 10 cross-section or profile and is a length of 90x35 mm MGP10 (Machined Graded Pine) or MGP12 or LVL or similar engineered wood product. In one form the hinged webs are typically 90 x 35 MGP10 and are arranged to be supported on rafter props 37. Rafter props 37 are pre-cut and 15 supplied with the module to be side-placed under the rafters, between the hinged webs and ceiling joists, which are also typically 90 x 35 MGP10 and have the same thickness as the rafters. Further, it is to be noted that the hinged webs and rafter props are nail-laminated on 20 site.

It is to be noted that the length of web 34 located at or towards the heel of roof module 10 is short or relatively the shortest of the lengths of the various 25 individual different length webs whereas the web located at or towards the toe of roof module 10 is long or relatively the longest of the lengths of the various different length individual webs. Further, it is to be noted that the lengths, including the ratio of relative 30 lengths of the webs, typically of the one set of webs, is in accordance with the angle of inclination of the skillion roof being formed from the roof module.

In one form of roof module 10 it is to be noted that 35 webs 34 are located on individual rafters 32 at locations in alignment with the location of ribbon plates 16 of ceiling assembly 12. Further, it is to be noted that the

21935052_1

location of ribbon plates 16 is in accordance with the location of the dividing walls within building structure 2. More typically, the hinged webs 34 are located to be directly over the ribbon plates to transfer the vertical 5 loads of the rafters to the correct locations of the load bearing walls. 2019204861

Rafter subassembly 30 further includes reinforcement, typically in the form of bracing for enhancing the 10 strength and rigidity thereof. One form of the bracing includes individual braces or struts, typically elongate braces 35. Preferably, the elongate braces include SPEEDBRACE strips. In one form the braces 35 are arranged in a generally zig zag or crossing over or criss-cross 15 pattern collectively over individual rafters 32, as shown more particularly in figure 8. However, it is to be noted that individual braces 35 can be arranged in any suitable or convenient pattern or configuration, and that braces 35 can have any suitable or convenient form, type, style, 20 size, shape or the like.

In roof module 10 respective individual joists 14 and corresponding individual rafters 32 are arranged to extend longitudinally along the length of the module as pairs in 25 side by side relationship to one another. The respective ends of joist 14 and rafter 32 of the one pair are hingedly connected together by a suitable fastener, such as for example, a Tek screw or similar allowing pivoting movement of the rafter with respect to the joist to allow 30 rafter subassembly 30 to pivotally move from the flat horizontal transport configuration to the inclined lifted in use configuration upon lifting of the “toe” end of rafter subassembly 30. It is to be noted that all of the components of rafter subassembly 30 move in unison as 35 rafter subassembly 30 is lifted.

Roof module 10 is provided with lifting fittings or

21935052_1

fixtures. In one form the lifting fitting or fixture is in the form of a lifting trimmer 36 and a lifting bracket 38. Typically, the lifting trimmer 36 is in the form of a length of timber or LVL, more typically a length of 90x35 5 mm MGP10 timber, and even more typically arranged to extend transversely of roof module 10 between the outer 2019204861

ceiling joist 14 or outer rafter 34 along one longitudinal side of roof module 10 and the other outer ceiling joist 14 or outer rafter 34, respectively, along the opposite 10 longitudinal side of roof module 10. It is to be noted that in one form the lifting trimmers are typically 90 x 35 LVL14. Further, it is to be noted that the thickness of the lifting trimmers is less than or equal to the thickness of the roofing battens if the trimmers are to be 15 remain on the module permanently. In one form the lifting bracket is an LTB bracket, such as a Pryda engineered “lifting bracket” product, such as for example, as shown more particularly in Figures 12 to 16. If required a packer 40 or shim is provided with the lifting bracket 38. 20 In one form packer 40 or shim is provided with a slot 42 or slit or elongate opening. In one form the packer is a horseshoe packer. One form of a 10 mm horseshoe packer for use with a screw in bolt 44 facilitates lifting of the cassette is illustrated in figures 13 to 16. It is to be 25 noted that the LTB brackets 38 are used for lifting floor cassettes, such as for example the Pryda floor cassette, by having the chains or lifting sling of the crane or hoist provided with lifting clutches that fit onto the protrusion of bolts 44 for being released on site 30 remotely. It is to be noted that one form of the lifting arrangement is shown in figures 12 to 16.

In one form lifting bracket 38 is fixedly connected to trimmer 36. 35 In one form lifting trimmer 36 is fixedly connected to ceiling joists 14 or to rafters 34 or to both ceiling

21935052_1

joists 14 and rafters 34. Preferably, lifting trimmers 36 are connected to rafters 34 only so that roof module 10 can be lifted into position using trimmers 36 and brackets 38 when rafters 34 are securely attached to ceiling joists 5 14, and also rafter module 30 can be hingedly lifted from the lowered flat transport configuration to the upper 2019204861

lifted in use sloping configuration b with y the lifting device, typically in the form of a hoist or crane, since rafter subassembly 30 is hingedly connected to ceiling 10 joist subassembly 12.

Bracket 38 in one form is provided with an eye or eyelet or similar for receiving therethrough a flexible lifting sling or similar for lifting roof module 10 into 15 the final position on top of the walls of building 2, and/or rafter assembly 30 from the flat horizontal transport configuration to the inclined lifted in use configuration.

20

Manufacture of flat roof cassette assembly

One method of manufacturing a typical flat roof 25 cassette assembly in the form of a roof module/assembly will now be described.

Ribbon plates 16 which have been pre-cut to the required length are located into position on a suitable 30 substrate or support surface provided within the manufacturing facility, typically a factory. One form of the suitable substrate or support surface is a pedestal jig arranged so that ribbon plates 16 extend in a substantially transverse direction with respect to the 35 longitudinal direction or lengthwise extending direction of module 10. The required number of individual rafters 32 which had been previously pre-cut to the desired length,

21935052_1

and the corresponding required number of individual ceiling joists 14 which had been previously pre-cut to the desired length, are located in position in pairs at the required spacing apart so as to extend in the lengthwise 5 extending direction or longitudinally on top of the transversely extending ribbon plates. 2019204861

Within the one pair, the end of rafter 32 is connected to the end of the corresponding ceiling joist 14 10 by a suitable screw to pivotally connect rafter 32 to joist 14 at the heel end of module 10 so as to allow pivotal movement of rafter subassembly 30 with respect to ceiling joist subassembly 12. After each pair of rafter and ceiling joist is pivotally or hingedly connected to 15 one another the individual transverse ribbon plates 16 are fixedly screwed to the rafters and/or ceiling joists or both from underneath module 10.

After pre-cutting to the required individual lengths, 20 each of webs 34 are fastened to a corresponding rafter 32 on the opposite side to the location of the corresponding ceiling joist of the pair to facilitate pivoting movement of web 34 to rafter 32 as rafter subassembly 30 is lifted to adopt the lifted inclined configuration. Thus, as 25 rafter subassembly 30 is lifted to adopt an inclined position corresponding to the second configuration, webs 34 hinge downwardly so that the respective lower ends of webs 34 are located near to ceiling joist 14 enabling the lower ends of webs 34 to be fixedly attached to ceiling 30 joists 14 at the required location so that webs 34 extend substantially vertically. When webs 34 are fixedly attached to joists 14 rafters 32 and rafter subassembly 30 are maintained in the required inclined configuration to form the roof of building 2 or to support the roof 35 covering of building 2.

Bracing 35 in the form of individual elongate bracing

21935052_1

strips of metal are fixedly attached to the upper surface of rafters 32 collectively to form wind bracing for increasing the strength and rigidity of the roof module.

5 It is to be noted that the flat roof cassette assembly or roof module is manufactured in the flat 2019204861

horizontal configuration in the factory so that the roof module is in a flat configuration suitable for transporting as a “flat pack”. 10 Installation of the flat roof cassette assembly

After manufacture in the manufacturing facility, such as a factory, each wall section, including all load- 15 bearing walls and all non-load bearing walls, of the building structure being assembled at the building site, is loaded onto a suitable vehicle for transportation to the building site from the manufacturing factory.

20 The flat roof cassette assembly forming the roof module of the building structure, in which the roof module includes rafters, ceiling joists, vertical webs, braces, props, OSB covering and ribbon plates all interconnected to one another to form the roof module, after being 25 manufactured in the manufacturing facility as described previously, is loaded onto the transport vehicle together with the wall sections before transportation to the building site. It is to be noted that, preferably, the wall sections are loaded on top of the flat cassette or 30 flat roof module for ease of transportation, and/or for being in the correct order for unloading at the building site where installation of the individual wall sections occurs before installation of the roof module.

35 At the building site the wall sections are unloaded first and hoisted into their respective final positions in accordance with the style and type of building structure,

21935052_1

using a suitable lifting device, typically in the form of a crane. Then, the roof module is unloaded from the transport vehicle and hoisted into position so as to be located on top of the now assembled vertical wall sections 5 with the ribbon plates lowermost or underneath the roof module resting upon the vertical load bearing wall 2019204861

sections.

The ribbon plates are fixedly fastened to the load 10 bearing walls by suitable fasteners, in the form of Tek screws, typically at 900 mm spacing to securely anchor the roof module to the load bearing walls.

After attaching a suitable lifting device, fitting, 15 or fixture, such as for example, a lifting sling to the lifting brackets of the roof module, the “toe” end of the rafter subassembly is lifted to the required height to form the inclined roof at the desired angle of inclination. 20 Mounting blocks having the same thickness as the individual rafters are fixedly attached to the side of the respective corresponding ceiling joists of each of the pairs of joists and rafters. The webs are rotated about 25 their respective pivot axis formed by the fasteners for attaching the webs to the rafters, from the original position of the webs corresponding to the flat configuration in which the webs are substantially aligned with the corresponding rafter to a substantially vertical 30 position extending between the now inclined rafter and the horizontal ceiling joist corresponding to the expanded in- use configuration. The crane is operated to lower the now vertical webs so that their respective lower ends rest upon the corresponding ribbon plate whereupon the lower 35 ends of the now vertical webs are nailed or otherwise fastened to the corresponding ceiling joist mounting blocks to complete installation of the roof module.

21935052_1

Thereafter, the outer weather resistant covering in whatever form is required, such as for example, metal sheets, corrugated steel, tiles, decking, metal panels or 5 similar, is fixedly attached to the upper surface of the rafters collectively. Optionally, battens can be attached 2019204861

to the rafters depending upon the type of roof treatment or covering.

10 ADVANTAGES

One or other of the embodiments of the roof module of the present description have one or other of the following advantages. 15 Faster manufacture of wall frames, eliminating the need for manual fixing of the ribbon plates to the wall frames at the building site.

20 Faster roof installation and erection at the building site is possible as compared to the time taken for constructing a conventional roof.

A reduction in cost of the components used in the 25 manufacture of the roof module.

A reduction in the cost of labour required in the manufacture of the roof module.

30 A reduction in the effort required for manufacturing roof structures.

A decrease in the time taken for manufacturing roof structures. 35 A saving in the cost of transporting the materials required to construct a roof structure as the roof modules

21935052_1

of the present description are less bulky than conventional roof trusses used in the construction of roof structures.

5 A reduction in the space required at the building site for storage of building products and components for 2019204861

use in the construction of the building structure using the roof modules.

10 Increased efficiency in unloading transport vehicles and hoisting roof modules into position as compared to conventional roof trusses.

Reduction in the amount of finishing required after 15 the roof modules are located in the correct position for forming the roof of the building structure due to no additional fixing of rafters or ceiling joists being required on-site to securely anchor the roof structure to the building and no additional wind bracing or 20 installation of ties being required.

In the claims which follow and in the preceding description, except where the context requires otherwise due to express language or necessary implication, the word 25 “comprise” or variations such as “comprises” or “comprising” is used in an inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments of the roof module or its method of 30 installation or manufacturing.

21935052_1

Claims (17)

1. A roof module transformable between a first 5 configuration and a second configuration, the roof module for forming a roof structure of a 2019204861

building, the roof module comprising: a ceiling subassembly including individual ceiling 10 elements interconnected to one another to form the ceiling subassembly, a rafter subassembly including individual rafter elements interconnected to one another to form the rafter subassembly and interconnecting elements movably connected 15 to selected rafter elements of the rafter subassembly, the ceiling subassembly and the rafter subassembly being movable with respect to one another for facilitating transformation of the roof module between the first configuration and the second configuration, 20 the individual rafter elements and the individual interconnecting elements being movable in unison when the rafter subassembly moves from the first configuration to the second configuration, the interconnecting elements being movable with 25 respect to the selected rafter elements between a first position and a second position in response to movement of the rafter subassembly with respect to the ceiling subassembly from the first configuration to the second configuration, 30 the first position adopted by the interconnecting elements corresponding to the first configuration of the roof module and the second position adopted by the interconnecting elements corresponding to the second configuration of the roof module, and 35 when in the second position the interconnecting elements maintain the rafter subassembly in the second configuration with respect to the ceiling subassembly to

21935052_1

form the roof structure of the building in which the roof module is installed; wherein the roof module further comprises at least one lifting fixture that comprises: 5 - at least one lifting trimmer that is connected to extend transversely of the roof module, and 2019204861

- at least one lifting bracket connected to the lifting trimmer, the at least one lifting bracket being configured for releasable connection to a chain or 10 lifting sling of a crane or hoist.

2. A roof module according to claim 1, wherein the roof module comprises two spaced apart lifting fixtures whereby each lifting trimmer in each lifting fixture extends 15 transversely of the roof module between an outer ceiling or rafter element located along one longitudinal side of the roof module and an outer ceiling or rafter element located along a second, opposite longitudinal side of the roof module. 20

3. A roof module according to claim 2, wherein the lifting trimmer in each lifting fixture is spaced from a respective end of the roof module.

25

4. A roof module according to any one of the preceding claims, wherein each lifting fixture comprises two spaced apart lifting brackets that are connected to a respective lifting trimmer.

30

5. A roof module according to claim 4, wherein each lifting bracket in each lifting fixture is spaced from a respective longitudinal side of the roof module.

6. A roof module according to any one of the preceding 35 claims, wherein at least one lifting fixture is connected to the rafter elements and at least one lifting fixture is connected to the ceiling elements.

21935052_1

7. A method of installing a roof module on or within a building to form a roof structure of the building, the roof module being as set forth in any one of claims 1 5 to 6, the method comprising: lifting the roof module by a crane or hoist using the 2019204861

at least one lifting fixture; locating the roof module at a required location on or within the building, 10 attaching the roof module to the building to maintain the ceiling subassembly fixedly in place, moving the rafter subassembly with respect to the ceiling subassembly so that the roof module adopts the second configuration, 15 moving the interconnecting elements of the rafter subassembly from the respective first positions to the respective second position, fixedly locating the interconnecting elements to the ceiling subassembly when the rafter subassembly is in the 20 second position to maintain the roof module in the second configuration to form a support for the roof of the building.

8. A method of manufacturing a roof module for forming a 25 roof structure of a building, the method comprising: forming a ceiling subassembly of ceiling elements interconnected to one another to form the ceiling subassembly, 30 forming a rafter subassembly of rafter elements interconnected to one another to form the rafter subassembly and interconnecting elements movably connected to selected rafter elements of the rafter subassembly, attaching at least one lifting fixture to the roof 35 module, the at least one lifting fixture being as set forth in any one of claims 1 to 6, connecting the ceiling subassembly and the rafter

21935052_1

subassembly together to form the roof module, the ceiling subassembly and the rafter subassembly being movable with respect to one another for facilitating conversion of the roof module between a first 5 configuration and a second configuration, and the rafter elements and the interconnecting elements 2019204861

being movable in unison in response to movement of the rafter subassembly with respect to the ceiling subassembly from the first configuration to the second configuration, 10 the interconnecting elements being movable with respect to the selected framework elements between a first position and a second position in response to movement of the rafter subassembly with respect to the ceiling subassembly, 15 the first position adopted by the interconnecting elements corresponding to the first configuration of the roof module and the second position adopted by the interconnecting elements corresponding to the second configuration of the roof module, 20 wherein when in the second position the interconnecting elements maintain the rafter subassembly in the second configuration with respect to the ceiling subassembly to form the roof structure of the building having the roof 25 module.

9. A roof module or a method according to any one of the preceding claims in which the module is a roof cassette wherein the roof cassette is a self-contained module or 30 assembly containing substantially all of the components required to form the roof or a supporting structure for the roof of a building.

10. A roof module or a method according to any one of the 35 preceding claims in which the ceiling subassembly of the roof module is an interconnected array of individual framework elements forming a ceiling or part of a ceiling

21935052_1

of the building in which the framework elements are ceiling framework elements, preferably in the form of ceiling joists, for forming the ceiling of the building or for supporting for the ceiling of the building. 5

11. A roof module or a method according to any one of the 2019204861

preceding claims in which the ceiling joists are aligned with one another in substantially parallel spaced apart relationship to each other to form a substantially planar 10 structure collectively.

12. A roof module or a method according to any one of the preceding claims in which the rafter subassembly is an interconnected array of individual framework elements or 15 members forming the roof or roof support of the building structure, or the support for the roof covering or outer skin or weatherproofing membrane of the roof of the building or the like.

20 13. A roof module or a method according to any one of the preceding claims in which the ceiling subassembly and rafter subassembly are hinged to one another, typically hinged through suitable fasteners, such as for example screws, pins, bolts, pegs, or the like, preferably Tek 25 screws including No. 14 type 17 screws having a length of 70 mm for use with 35 mm thick components, or a length of 90 mm for use with 45 mm thick components.

14. A roof module or method according to any one of the 30 preceding claims in which the rafters are movable, typically movable with respect to the ceiling joists which remain stationary during transformation of the roof module from the first configuration to the second configuration as the rafters move, wherein the rafters each have a first 35 end which is movably connected or hinged to a respective ceiling joist allowing relative pivoting movement of the rafters with respect to the ceiling joists, and a second

21935052_1

end which is movable so as to be spaced apart from the respective ceiling joist to which the first end is movably attached whereby the second ends of the rafters move away from the fixed respective ends of the stationary ceiling 5 joists. 2019204861

15. A roof module or method according to any one of the preceding claims in which webs are located at spaced apart locations along the length of the rafter, typically at 10 irregularly spaced apart intervals.

16. A roof module or method according to any one of the preceding claims in which the ceiling subassembly includes one or more mounts facilitating attachment of the 15 interconnecting elements to the ceiling joists wherein the mounts are connected to the ceiling joists at the manufacturing facility or can be attached at the building site and wherein the mounts include a mounting block, typically in the form of a block or short length of timber 20 wherein the mounting block is located on the side of the ceiling joist opposite to the side on which the rafter is aligned against the ceiling joist in side-by-side parallel relationship there to.

25

17. A roof module or method according to any one of the preceding claims in which the length of the individual rafters is less than, equal to or greater than the length of the corresponding ceiling joist to which the rafter is movably connected, including the length of the individual 30 rafters being greater than the length of the corresponding ceiling joists by an overshoot or overhang wherein the overshoot or overhang of the length of the rafter as compared to the length of the ceiling joist is in accordance with the amount of inclination of the sloping 35 roof so that the ends of the rafters extend beyond the line of the ends of the ceiling joists.

21935052_1

18. A roof module or method according to any one of the preceding claims in which the roof module further comprises reinforcement or a reinforcing element or member or device in which the reinforcement is a brace, a cross 5 brace in the form of a strip or length of metal having a suitable or convenient shape or profile including 2019204861

Speedwell braces arranged in a suitable pattern or array, such as for example, in a generally cruciform shape, crisscross pattern, overlapping pattern, superposed array 10 or zigzag array.

19. A roof module or method according to any one of the preceding claims in which webs are located on individual rafters at locations in alignment with the 15 location of ribbon plates of the ceiling assembly, wherein the location of the ribbon plates is in accordance with the location of dividing walls within the building structure, including hinged webs being located to form directly over the ribbon plates to transfer vertical loads 20 of the rafters to the correct locations of the load bearing walls.

20. A roof module transformable between a first configuration and a second configuration, 25 the roof module for forming a roof structure of a building, the roof module comprising: a ceiling subassembly including individual ceiling elements interconnected to one another to form the ceiling 30 subassembly, the ceiling subassembly further comprising a horizontal ceiling attached to the underside or under surface collectively of the ceiling elements such that, when the roof module is installed on or within a building to form a roof structure of the building, the horizontal 35 ceiling is also installed, a rafter subassembly including individual rafter elements interconnected to one another to form the rafter

21935052_1

subassembly and interconnecting elements movably connected to selected rafter elements of the rafter subassembly, the ceiling subassembly and the rafter subassembly being movable with respect to one another for facilitating 5 transformation of the roof module between the first configuration and the second configuration, 2019204861

the individual rafter elements and the individual interconnecting elements being movable in unison when the rafter subassembly moves from the first configuration to 10 the second configuration, the interconnecting elements being movable with respect to the selected rafter elements between a first position and a second position in response to movement of the rafter subassembly with respect to the ceiling 15 subassembly from the first configuration to the second configuration, the first position adopted by the interconnecting elements corresponding to the first configuration of the roof module and the second position adopted by the 20 interconnecting elements corresponding to the second configuration of the roof module, and when in the second position the interconnecting elements maintain the rafter subassembly in the second configuration with respect to the ceiling subassembly to 25 form the roof structure of the building in which the roof module is installed.

21. A roof module according to claim 20, further comprising a lifting fixture, the lifting fixture 30 comprising: - at least one lifting trimmer that extends transversely of roof module; and at least one lifting bracket connected to the lifting trimmer, the at least one lifting bracket being configured 35 for releasable connection to a chain or lifting sling of a crane or hoist.

21935052_1

2019204861 05 Jul 2019

1/5 1/5

10 10

34 34 2019204861

O

32

34 o 32 34 O

12 12

32

34 32 34 32

32 32 32 14

14

30 30

14 14 34

34

o o

34 34

FIGURE 5 FIGURE 5 FIGURE 1

FIGURE 2

FIGURE 2 FIGURE 1 FIGURE 3

FIGURE 3 FIGURE 4

FIGURE 4 34

34

o 34

o 34 o 37

37

O 37

2019204861 05 Jul 2019

2/5 16 2/5

16

14 14

10 2019204861

10

34 34

FIGURE 6 FIGURE 6 34

34 16

16 36

36 38

38 30

2019204861 05 Jul 2019

3/5 3/5 2019204861

16 32 16

16 16

32

14 14

16 16

34 34

10 10

FIGURE 7 FIGURE 7 14

14 16

05 Jul 2019

4/5 4/5

14 14 32 32 35 35 35 35

16 16 35 2019204861

2019204861

35 32 32

14 14 FIGURE FIGURE 88

10 10 34 34 32 32

34 14 14 34 FIGURE FIGURE 99

32 30 30 32 34 34 34 34

14 12 12 14 FIGURE 10 FIGURE 10

4 4 30 30

12 12

6 6

FIGURE 11 FIGURE 11 2

2019204861 05 Jul 2019

5/5 5/5

32 32

38 38 44

44

36

FIGURE 14 FIGURE 14

36 2019204861

32 32

FIGURE 16 FIGURE 16

40 40

44 44 "A"

"A"

FIGURE 15 FIGURE 15

36 36 40

40

42 42 10

10 44

44 36

36 40

40 38

"B"

"B" 38 X 36

36 T T

LT T FIGURE 12

FIGURE 12 FIGURE 13

FIGURE 13 32

32 38

38 S

AS

SL S 36