AU2016204706B2

AU2016204706B2 - Construction of a modular building including at least one fire-resistant barrier between adjacent modules therein

Info

Publication number: AU2016204706B2
Application number: AU2016204706A
Authority: AU
Inventors: Brad Drummond; Stephen Harnwell; Carlo Paneni
Original assignee: Ausco Modular Pty Ltd
Current assignee: Ausco Modular Pty Ltd
Priority date: 2015-07-20
Filing date: 2016-07-07
Publication date: 2021-11-11
Anticipated expiration: 2036-07-07
Also published as: AU2016204706A1; NZ721967A

Abstract

There is disclosed a method of constructing a modular building which includes laterally adjacent first and second prefabricated building modules, a structural component ("the building component"), arranged adjacent to and in abutting relation with the first module, and a fire resistant barrier isolating the first module from the second module, the method including arranging the modules and the building component such that a fire-resistant wall of the first module faces the second module and so as to deform a body of material compressively between an edge of said wall and the building component, said body comprising fire-resistant material, whereby the fire-resistant barrier comprises said wall and the compressively deformed body of material.

Description

C:Us rsbAppDa "aRoamingiManage\Work\Recnt\35252539AU Construction of a odular building icluding atInast on fire-resistant barrier betwnee adjacent module therein\35252539 amnded pages 2SPA(21986343)doc15-09202 1

CONSTRUCTION OF A MODULAR BUILDING INCLUDING AT LEAST ONE FIRE RESISTANT BARRIER BETWEEN ADJACENT MODULES THEREIN

The present invention relates to construction of a modular building comprising prefabricated building modules and at least one fire-resistant barrier between adjacent ones of the modules. The invention has particular, though not exclusive, application to two-storey or multi-storey modular buildings, including modular townhouses. In buildings containing more than one sole occupancy unit (SOU), a firewall between adjacent SOUs is typically provided to keep fire from spreading from one of those SOUs to the other. Generally speaking, a firewall must meet minimum standards for structural adequacy (stability and loadbearing capacity), integrity (resistance to passage of flames and hot gases) and insulation (resistance to heat transfer). Figure 1 is a schematic plan view showing adjacent modules M1 and M2 of respective sole occupancy units SOUl and SOU2 and a firewall F between the modules M1 and M2 in a traditional building. If MI/SOUl were to fail structurally due to fire, the wall F would need to remain intact for a minimum period of time, to preclude the fire from spreading to M2/SOU2. To this end, referring to Figure 2, the firewall F is self-standing. Construction of a self-standing firewall on-site is time-consuming and thus often contributes significantly to the duration of construction of a modular building at site. The need for a self-standing firewall can be eliminated by configuring each module or SOU such that it is a "fire-rated compartment", providing in its own right the requisite structural adequacy, integrity and insulation for protection of the remainder of the building in the event of a fire in that module/SOU. However, so configuring the module/SOU requires considerably more fire-resistant material in each module/SOU and often requires specialised and time-consuming activities on-site, such as fire-rated plastering, and, if a given SOU is comprised of more than one module, establishment offire-ratedjoints between the modules of the SOU. Such activities are generally difficult and expensive, particularly where the building is being constructed at a remote location. Moreover, accessibility to joint locations is often poor, especially given that joints between modules are often located in correspondence to different rooms. According to a first aspect of the present invention, there is provided a method of constructing a modular building which includes laterally adjacent first and second

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prefabricated building modules, a structural component ("structural building component"), arranged adjacent to and in abutting relation with the first module, and afire-resistant barrier isolating the first module from the second module, the method including arranging the modules and the structural building component such that a fire-resistant wall of the first module faces the second module and so as to deform a body of material compressively thereby forming a fire-resistant seal, between an edge of said wall and said structural building component, said body comprising fire-resistant material, whereby the fire-resistant barrier comprises said wall and the compressively deformed body. Preferably, said body of material is pre-applied to said edge or to the structural building component. In one embodiment of the invention, said fire-resistant material is deformable such that the compressive deformation of the body comprises compressive deformation of the fire-resistant material. Preferably, in that embodiment, said body is defined solely by the fire-resistant material. Preferably, the deformable fire-resistant material is resiliently deformable. Preferably, the deformable fire-resistant material comprises foam. In another embodiment of the invention, said body of material comprises, in addition to said fire resistant material, a deformable material applied over said fire-resistant material, and said deformable material is arranged to lie adjacent or in contact with said edge and/or said structural building component to deform thereagainst when said body is compressively deformed. The fire-resistant material preferably comprises intumescent material. In this embodiment, the deformable material may have a composition which is such that it is destroyed (e.g. melts or combusts) when exposed to fire whereby space, between the edge and structural building component, which was occupied by said deformable material becomes occupied by the intumescent material as a result of expansion thereof. The deformable material applied over said fire-resistant material is preferably resiliently deformable. The deformable material applied over said fire-resistant material is preferably foam. The body of fire-resistant material may be provided as a single piece. Preferably, the body of material is defined by a length or strip. Preferably, the method is such that said building includes a structural component ("building structural component") and a further fire-resistant barrier, which isolates the second module from the first module, and the method includes arranging the modules and

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building structural component such that a fire-resistant wall of the second module faces the first module and such that a body of material ("the second body of material") is compressively deformed between an edge of the fire-resistant wall of the second module and the building structural component, said body comprising fire-resistant material, whereby the further fire-resistant barrier comprises the fire-resistant wall of the second module and the second body of material compressively deformed between the edge of the fire-resistant wall of the second module and the building structural component. Preferably, the second body of material is pre-applied to the edge of the wall of the second module or to the building structural component. In a preferred embodiment of the invention, the fire-resistant material of which the second body of material is comprised is deformable such that the compressive deformation of the second body of material comprises compressive deformation of that fire-resistant material. Preferably, in that embodiment, the second body of material is defined solely by the fire-resistant material. Preferably, the deformable fire-resistant material of which the second body of material is comprised is resiliently deformable. Preferably, the deformable fire-resistant material of which the second body of material is comprised comprises foam. In another embodiment of the invention, the second body of material comprises, in addition to said fire-resistant material, a deformable material applied over that fire-resistant material and arranged to lie adjacent or in contact with the edge of the fire-resistant wall of the second module and/or the building structural component to deform thereagainst when said body is compressively deformed. In this embodiment, the fire-resistant material of the second body of material preferably comprises intumescent material and the deformable material preferably has a composition which is such that it is destroyed (e.g. melts or combusts) when exposed to fire whereby space, between the edge of the fire-resistant wall of the second module and the building structural component, which was occupied by said deformable material, becomes occupied by the intumescent material of the second body of material as a result of expansion that intumescent material. The deformable material applied over said fire-resistant material of the second body of material is preferably resiliently deformable. The deformable material applied over said fire-resistant material of the second body of material is preferably foam. The second body of material may be provided as a single piece. Preferably, the second body of material is defined by a length or strip.

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In a preferred embodiment of the invention, the building structural component comprises a footing or foundation arranged such that the second module is supported on it in the modular building, and said edge of the fire-resistant wall of the second module is a bottom edge of that wall. Preferably, said footing or foundation comprises a pier wall footing. In a preferred embodiment of the invention, said structural building component comprises a footing or foundation arranged such that the first module is supported on it in the modular building, and said edge of the fire-resistant wall of the first module is a bottom edge of that wall. Preferably, said footing or foundation is arranged such that the first module is supported on it comprises a pier wall footing. In a preferred embodiment of the invention, said structural building component is arranged such that the second module is supported on it in the building. In a preferred embodiment of the invention, said building structural component is said structural building component. In a preferred embodiment of the invention, the method is such that the building has first and second sole occupancy units comprising the first and second modules respectively. In a preferred embodiment of the invention, said structural building component is a third prefabricated building module. Preferably, the third module includes a fire-resistant wall and is arranged such that said body of material is compressively deformed between an edge of that wall and the edge of the fire-resistant wall of the first module, whereby the fire resistant barrier includes the fire-resistant wall of the third building module. In the method according to one embodiment of the invention, the third module is arranged such that said first module is laterally adjacent to it in the building and said edge of the fire-resistant wall of said first module is a side edge of that wall. Preferably, the method according to that embodiment is such that the building includes a fourth prefabricated building module, and includes arranging the fourth module such that it is laterally adjacent to the third building module and laterally adjacent to and in abutting relation with the second module, and such that the fire-resistant wall of the third module faces the fourth module, whereby the fire-resistant barrier isolates the third module from the fourth module. In the method according to another embodiment of the invention, the third module is arranged such that said first module is supported on it in the building and said edge of the

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fire-resistant wall of the first module is a bottom edge of that wall. Preferably, the method according to that embodiment is such that the building includes a fourth prefabricated building module, and the method includes arranging the fourth prefabricated building module such that it is laterally adjacent to the third building module, and the second module is supported on it in the building, and such that thefire-resistant wall of the third module faces the fourth module, whereby the fire-resistant barrier isolates the third module from the fourth module. In a preferred embodiment of the invention, said method is such that the building includes a further fire-resistant barrier, which isolates the second and fourth modules from the first and third modules, and the method includes arranging the modules such that a fire resistant wall of the second module faces the first module and a fire-resistant wall of the fourth module faces the third module and such that a body of material ("the further body of material") is compressively deformed between an edge of the fire-resistant wall of the second module and an edge of the fire-resistant wall of the fourth module, whereby the further fire-resistant barrier comprises the fire-resistant walls of the second and fourth modules and the further body of material compressed between the edges thereof. Preferably, the further body of material is pre-applied to said edge of the fire-resistant wall of the second module or said edge of the fire-resistant wall of the fourth module. In a preferred embodiment of the invention, the fire-resistant material of which the further body of material is comprised is deformable such that the compressive deformation of the further body of material comprises compressive deformation of that fire-resistant material. Preferably, in that embodiment, the further body of material is defined solely by the fire-resistant material. Preferably, the deformable fire-resistant material of which the further body of material is comprised is resiliently deformable. Preferably, the deformable fire-resistant material of which the further body of material is comprised comprises foam. In another embodiment of the invention, the further body of material comprises, in addition to said fire-resistant material, a deformable material applied over that fire-resistant material and arranged to lie adjacent or in contact with the edge of the fire-resistant wall of the second module and/or the edge of thefire-resistant wall of the fourth module to deform thereagainst when said body is compressively deformed. In this embodiment, the fire-resistant material of the further body of material preferably comprises intumescent material and the deformable material preferably has a composition which is such that it is destroyed (e.g.

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melts or combusts) when exposed to fire whereby space, between the edge of the fire resistant wall of the second module and the edge of the fire-resistant wall of the fourth module, which was occupied by said deformable material, becomes occupied by the intumescent material of the further body of material as a result of expansion that intumescent material. The deformable material applied over said fire-resistant material of the further body of material is preferably resiliently deformable. The deformable material applied over said fire-resistant material of the further body of material is preferably foam. The further body of material may be provided as a single piece. Preferably, the further body of material is defined by a length or strip. In a preferred embodiment of the invention, said method is such that the building has first and second sole occupancy units, the first sole occupancy unit comprising the first and third modules and the second sole occupancy unit comprising the second module. Preferably, the second sole occupancy unit further comprises said fourth module. In a preferred embodiment of the invention, said method is such that the building includes a further building module laterally adjacent and spaced from the first module and a fire-resistant panel between the first module and said further module, and the method includes arranging the first module, further module and panel such that the panel extends between the fire-resistant wall of the first module and a fire-resistant wall of the further module, whereby the fire-resistant barrier includes the fire-resistant wall of the further module and the panel and additionally isolates the further module from the second module. Preferably, the panel is defined by a hatch installed between the first module and said further module. In a preferred embodiment of the invention, said method is such that the building includes an additional building module laterally adjacent and spaced from the second module and a fire-resistant panel between the second module and said additional module, and the method includes arranging that panel, the second module and said additional module such that the panel extends between the fire-resistant wall of the second module and a fire resistant wall of the additional module, whereby the further fire-resistant barrier includes the fire-resistant wall of the additional module and panel and additionally isolates the additional module from the first module. Preferably, the panel is defined by a hatch installed between the second module and said additional module. In a preferred embodiment of the invention, the method is such that said first and

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second sole occupancy units comprise first and second townhouses respectively. In a preferred embodiment of the invention, in at least one - and preferably in each - said module which includes a said fire-resistant wall, the wall comprises a main section applied over framework of the module, whereby the module comprises an assembly including the framework and main section, the main section being configured therethrough with at least one opening at or adjacent a respective one of opposed lower corners of the fire-resistant wall to permit access to a lifting point on the framework adjacent that comer, and the wall further comprises at least one hatch section, the or each hatch section being receivable in or over a respective said opening to occlude the opening, and the method comprises bottom-lifting the or each assembly using a lifting device connected to the lifting point(s) through the opening(s), to land that assembly in the position it assumes in the building, and subsequently disconnecting the lifting device from the lifting point(s) and installing the hatch section(s) over or in the opening(s) such that the respectivefire-resistant wall is formed. Preferably, the or each hatch section is slid into the respective said opening such that the opening is occluded. Preferably, the or each hatch section is slid in a direction parallel to the fire-resistant wall of which it forms a part such that the opening is occluded. Preferably, the or each opening is configured with an entrance which passes through a side edge of the fire-resistant wall, and a respective said hatch is passed through that entrance so as to occlude that opening. According to a second aspect of the present invention, there is provided a said body of material applied to a said edge to be compressively deformable in the method. According to a third aspect of the present invention, there is provided a said body of material applied to a said component to be compressively deformable in the method. According to a fourth aspect of the present invention, there is provided the modular building constructed by a method as defined above. The invention will now be described, by way of non-limiting example only, with reference to the accompanying drawings, in which: Figure 1 is a schematic plan view showing adjacent modules of respective sole occupancy units (SOUs) and a firewall between the modules in a traditional modular building; Figure 2 is a side elevation view showing the SOUs and firewall of the building in Figure 1;

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Figures 3A to 3G are schematic elevation views showing successive stages in construction of a modular building, having a pair of two-storey SOUs, in accordance with a preferred embodiment of the invention; Figures 4A to 4D are schematic plan views showing successive stages in construction of a modular building, having a pair of SOUs each of which has at least one storey comprising laterally adjacent modules, in accordance with a preferred embodiment of the invention; Figure 5A is a schematic plan view depicting top-lifting of modules to position them during construction of a modular building in accordance with a preferred embodiment of the invention; Figure 5B is a schematic plan view depicting the use of slide-in hatches forming part of fire-resistant walls of modules which are bottom-lifted into position during construction of a modular building in accordance with a preferred embodiment of the invention; Figures 6A and 6B show successive stages of complexing between laterally adjacent modules in the construction of each of two laterally adjacent SOUs of a modular building in accordance with a preferred embodiment of the invention; Figures 7A to 7C are schematic plan views showing successive stages in construction of a modular building, having laterally adjacent pairs of SOUs, in accordance with a preferred embodiment of the invention; Figures 8A to 8D are perspective views showing successive stages of construction of a fire-resistant wall of a module for a modular building in accordance with a preferred embodiment of the invention; Figures 9A to 9C are perspective views showing successive stages of installation of a module atop a pier footing, to which compressible fire-resistant material has been pre applied, during construction of a modular building in accordance with a preferred embodiment of the invention; and Figure 10 shows compressible fire-resistant material pre-applied to a lower edge of a fire-resistant wall of a module for a modular building according to a preferred embodiment of the invention.

Figures 3A to 3G show successive stages in the construction of a modular building 100 (see Figure 3G) in accordance with a first preferred embodiment of the present

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invention. The modular building 100 comprises a first sole occupancy unit (SOU) 10, comprising a lower storey prefabricated building module 20 and an upper storey prefabricated building module 30, and a second SOU 50, comprising a lower storey prefabricated building module 60 and an upper storey prefabricated building module 70. The building 100 includes a first fire-resistant barrier 40, which isolates the first SOU 10 from the second SOU 50, and a second fire-resistant barrier 80, which isolates the second SOU 50 from the first SOU 10. The building 100 additionally includes a pier wall footing 90 and standard pier footings 91 and 92 secured to the ground, the footing 90 being fire-resistant and supporting opposed adjacent sides of the modules 20 and 60 and the footings 91 and 92 supporting the respective opposite sides of those modules. The building 100 further comprises a roof 95, to which each of the barriers 40 and 80 extends from the pier wall footing 90. Referring now to Figure 3A, construction of the building 100 at site commences with establishment of the foundations 90, 91, and 92 and application of lengths 98 of fire-resistant material to the top side of the footing 90, each of the lengths 98 being positioned so as to be compressed between the lower edge of a wall of a respective one of the modules 20 and 60, as described in further detail shortly. Next, referring also to Figure 3B, module 20 is landed atop footings 90 and 91, whereby a lower edge 22 of a fire-resistant wall 24 of the module 20 is received against the left-hand length of fire-resistant material 98 such that the latter is compressed between the edge 22 and pier wall footing 90, as shown in Figure 3B. The material composition of each length of material 98 can vary. A particularly preferred product to use as the length of material 98 is a strip marketed as PROMASEAL@IBSTM, as disclosed in the datasheet entitled PROMASEAL@ IBSTrM Foam Strip For JointsAnd Gaps (09/2010) available at http://www.promat-ap.con/pdf/si 81-82.24.pdf the content of which datasheet is incorporated herein by reference in its entirety, this product comprising polyurethane, acrylic resin, aluminium silicate, silicon dioxide and borates. The product is a flexible fire protection foam strip conventionally used for sealing joints and gaps within walls or floors and has versatility for fire stopping at joints and gaps. An alternative product for forming each length of material 98 is that marketed as PyropanelFire Snake, details of which are in Tech Sheet PAS-13; Issue Date: 27-04-2015; Expiry Date: 31-12-2016, available at http://www.pvropanel.com.au/Other/Pvropanel/PDF%20tech%2Osheets/PAS-13Fire snake tech.pdf the content of which sheet is incorporated herein by reference in its entirety. Yet another

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product which could be used as the length of the fire-resistant material 98 is a strip marketed as PROMASEAL@ Fyrestrip,as disclosed in the datasheet entitled PROMASEAL® Fyrestrip For Movement Joints Seals (09/2010), available at http://ww.promat-a.com/pdf/se 81 82.24.pdf, the content of which datasheet is incorporated herein by reference in its entirety, this product being a compressible, flexible, fire-resistant seal conventionally used where movement joints are formed in a building. The product comprises layers of intumescent material and a foam to which those layers are bonded. In the event of a fire, the foam is destroyed and the intumescent material expands such that there are no gaps between it and the structural elements between which it is installed. The length of material 98 can be used alone or together with a cover sealant, e.g. of acrylic fire-rated sealant, such as PROMASEAL AN, which is a mastic comprising acrylic polymer, mellitic acid ester, calcium carbonate, silica and boron.In all cases, the length of material 98 defines a compressively deformable elongate body of material which will form a part of a fire-resistant barrier in the building, the body comprising portions consisting of compressively deformable material and lying in direct contact with the members between which the body is compressively deformed. As can best be seen at Figure 3A, the fire-resistant wall 24 comprises a frame 25, fire-resistant panelling 26, which may be made from fire-resistant plasterboard (for example), applied over the frame 25, and an elongate member 27 extending the length of the lower edge of the panelling 26 and secured to the frame 25, the member 27 defining the fire resistant wall lower edge 22. The fire-resistant wall 24 further includes an elongate member 28 secured to the frame 25 and extending the length of the upper edge of the panelling 26 (which extends the full length of the module 20), the member 28, either on its own or together with the panelling upper edge, defining an upper edge 29 of the fire-resistant wall 24. The members 27 and 28 are formed from steel. The construction of the fire-resistant wall of each module will be described in further detail later. Owing to the material 98, under the weight of the module 20 when landed, being compressed between the lower edge 22 and the footing 90, reliable continuous fire-resistant seals between the length of fire-resistant material 98 and wall 24 and between the length of fire-resistant material 98 and footing 90 are established. More particularly, the member 27 is arranged such that compression of the length of fire-resistant material 98 is ensured, and so as to be isolated from fire by the panelling 26 and length of fire-resistant material 98.

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As can best be seen at Figure 3A, a length of the same compressible fire-resistant material 98 is pre-applied to the wall upper edge 29 (preferably at the time of fabrication of the module 20, in the factory), that length of fire-resistant material, like the compressed length of fire-resistant material at the lower edge 22, being arranged so as to extend the entire length of the wall 24/module 20. The material 98 can be attached to the respective one of the edges 29, 69 by adhesive, e.g. fired-rated mastic (such as that referred to above) and/or with screws (which might have to be removed after transport if their presence is not acceptable for the fire engineer). Referring to Figures 3C and 3D, the module 30 is then, by means of the crane, landed atop the module 20, such that a lower edge 32 of a fire-resistant wall 34 of the module 30 is received against the top face of the length of fire-resistant material 98 pre-applied to the module 20, whereby the edges 29 and 32 are in indirect abutting relation and the length of fire-resistant material 98 pre-applied to module 20 is (under weight of the landed module 30) compressed between those edges, whereby reliable continuous fire-resistant seals between the length of fire-resistant material 98 and wall 34 and between the length of fire-resistant material 98 and wall 24 are established. The fire resistant wall 34 of the module 30 has the same construction as that of the module 20 insofar as it comprises a frame 35, fire-resistant panelling 36 applied over the frame and extending the length of the module 30, and an elongate member 37, defining the lower edge 32, secured to the frame 35 and extending the length of the upper edge of the panelling 36 (which extends the full length of the module 30). More particularly, the members 29 and 37 are arranged such that compression of the length of fire-resistant material 98 pre-applied to the module 20 is ensured, and so as to be isolated from fire by the panelling 36 and that length of fire resistant material 98. The fire-resistant wall 34 includes an upper edge 39, which is defined by an upper edge of the panelling 36. Were a further module to be landed atop the module 30, that upper edge would instead comprise an upper elongate member consistent with member 28. Next, referring to Figure 3E, module 60 is, by means of the crane, landed atop footings 90 and 92 whereby a lower edge 62 of a fire-resistant wall 64 of the module 60 is received against the right-hand length of fire-resistant material 98 applied to the footing 90, whereby that length of fire-resistant material is compressed between the edge 62 and footing 90. The fire-resistant wall 64 is of substantially the same construction as the wall 24, comprising a frame 65, panelling 66 applied over the frame, an elongate member 67, defining

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the fire-resistant wall lower edge 62, secured to the frame 65 and extending the length of the module 60/lower edge 62, and an elongate member 68 secured to the frame 65 and extending the length of the upper edge of the panelling 66 (which extends the full length of the module 60), the member 68, either on its own or together with the upper edge of the panelling 66, defining an upper edge 69 of the fire-resistant wall 64. Owing to the right-hand length of fire-resistant material of foam 98 which is pre applied to the footing 90 being compressed between the wall 64 and footing member 90, in exactly the same way as the left-hand pre-applied length offire-resistant material 98 is compressed between the wall 24 and the footing 90, reliable continuous fire-resistant seals between the right-hand length of fire-resistant material 98 and wall 64 and between the length of fire-resistant material 98 and footing 90 are established. More particularly, the member 67 is arranged such that compression of the length of fire-resistant material 98 is ensured, and so as to be isolated from fire by the panelling 66 and length offire-resistant material 98. As can best be seen at Figure 3E, a length of the same compressible fire-resistant foam 98 is pre-applied to the wall upper edge 69, in exactly the same way as such a length of fire-resistant material is applied to the fire-resistant wall upper edge 29 in the module 20, that length, like the compressed length of fire-resistant material 98 at the lower edge 62 being arranged so as to extend the entire length of the wall 64/module 60. Next, referring to Figure 3F, the module 70 is, by means of the crane, landed atop the module 60, such that a lower edge 72 of a fire-resistant wall 74 of the module 70 is received against the top face of the length offire-resistant material 98 pre-applied to the module 60, whereby the edges 69 and 72 are in indirect abutting relation and the length of fire-resistant material 98 pre-applied to module 60 is (under weight of the landed module 70) compressed between those edges, whereby reliable continuous fire-resistant seals between the length of fire-resistant material 98 and wall 74 and between the length of fire-resistant material 98 and wall 64 are established. The fire-resistant wall 74 of the module 70 has the same construction as that of the module 30 insofar as it comprises a frame 75, fire-resistant panelling 76 applied over the frame and extending the length of the module 70, and an elongate member 77, defining the lower edge 72, secured to the frame 75 and extending the length of the upper edge of the panelling 76 (which extends the full length of the module 70). More particularly, the members 69 and 77 are arranged such that compression of the

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length of fire-resistant material 98 pre-applied to the module 60 is ensured, and so as to be isolated from fire by the panelling 76 and that length of fire-resistant material 98. The fire resistant wall 74 includes an upper edge 79, which is defined by an upper edge of the panelling 76. Were a further module to be landed atop the module 70, that upper edge would instead comprise an upper elongate member consistent with member 68. Next, referring to Figure 3G, a length of compressible fire-resistant material 99, e.g. comprising glass wool, is applied over each of the upper edges 39 and 79 and the roof 95 then arranged over the modules and the lengths of material 99, such that the latter form fire resistant seals between the respective wall edges 39 and 79 and the roof 100. Thus, in the modular building 100, the fire-resistant barrier 40 comprises the left-hand length of fire-resistant material 98 pre-applied to the footing 90, the fire-resistant wall 24 of the module 20, the length offire-resistant material 98 pre-applied to the module wall edge 29, the fire-resistant wall 34 of the module 30 and the length of material 99 applied over the upper edge 39 of that wall. Similarly, the fire-resistant barrier 80 comprises the right-hand length of fire-resistant material 98 pre-applied to the footing 90, the fire-resistant wall 64 of the module 60, the length offire-resistant material 98 pre-applied to the module wall edge 69, the fire-resistant wall 74 of the module 70 and the length of material 99 applied over the upper edge 79 of that wall. Advantageously, the fire-resistant barriers 40, 80, define, in the building 100, firewalls each of which isolates one SOU from the other, which firewalls are not self-standing but rather formed in a modular manner, as the modules and roof are deployed. Referring to Figures 4A to 4D, 5A, 5B, 6A and 6B, the invention has application to modular buildings in which each of plural sole occupancy units comprises laterally adjacent modules each of which comprises a firewall as described above. More particularly, in the example shown in Figure 6B, an SOU SIincludes laterally adjacent modules MA and MB and a second SOU S2 includes laterally adjacent modules MC and MD, the modules being landed atop lengths of compressible fire-resistant foam 98 via crane in the sequence shown in Figures 4A to 4D. Each of SOUs S and S2 may be single-storey or plural-storey (i.e. two-storey or multi-storey), and the modules MA, MB, MC and MD can be in any given storey of the building. Referring again to Figure 6B, SOU S includes complexing Ki installed between the modules MA and MB, both to interconnect them and to establish a fire-resistant connection between adjacent vertical edges EA and EB (see Figure 4D) of the

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fire-resistant walls WA and WB (respectively) of those modules, whereby there is defined a fire-resistant barrier comprising that connection, the walls WA and WB and lengths of fire resistant material 98 compressed against lower edges of those walls (which lengths will be compressed against the pier wall footing 90 if the modules MA and MB are ground floor modules, and will be compressed against upper edges offire-resistant walls of modules atop which the modules MA and MB are installed if the latter are not ground-floor modules). Similarly, again referring to Figure 6B, SOU S2 includes complexing installed between the modules MC and MD, both to interconnect them and to establish afire-resistant connection between adjacent vertical edges EC and ED (see Figure 4D) of thefire-resistant walls WC and WD (respectively) of those modules, whereby there is defined a fire-resistant barrier comprising that connection, the walls WC and WD and the lengths offire-resistant material 98 against which lower edges of those walls are received (which lengths will be compressed against the pier wall footing 90 if the modules MC and MD are ground floor modules, and will be compressed against upper edges of fire-resistant walls of modules atop which the modules MC and MD are installed if the latter are not ground-floor modules). The complexing will be described further later. Landing of the building modules in position can involve top-lifting of each module, as shown in Figures 3A and 3C, or bottom-lifting of each module. Figure 5A schematically depicts a scenario in which the modules MA, MB, MC and MD are top-lifted, showing positions of connection points X for lifting chains and tie-downs. If the modules are top-lifted and tie-down of the modules is, as illustrated, away from the adjacent fire walls formed between the SOUs, no allowance need be made for a spacing to decouple the lifting chains from each module after it is landed or to effect tie-down of the modules. Figure 5B depicts a scenario in which the modules MA, MB, MC or MD are installed via a bottom-lifting procedure, showing positions Y of connection points for lifting chains and tie-downs, and also showing positions of hatches H incorporated into the fire-resistant walls WA, WB, WC and WD of the modules. Each of the hatches H of each module can be removed, such that access to a respective connection point Y on the same side of the module as that at which the fire-resistant wall W is provided, and thereafter slid horizontally, in a direction parallel to the respective fire-resistant wall, to cover the respective connection point and, together with the remainder of the panelling of the fire-resistant wall, to define

CUsorsbtAppDa"RoaingiManage\Work\Recnt\35252539AU Construction of a odular building icluding atInast on fire-resistant barrier betwnee adjacent module therein\35252539 amnded pages 2SPA(2I1986343.I1).doc,-I15'09202 1

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the fire-resistant wall panelling of the module. Modules MA and MB are spaced sufficiently to allow man-access therebetween whereby the lifting chains can be disconnected from the connection points in those modules and the slide-hatches H of those modules can be installed/closed. Similarly, modules MC and MD are spaced sufficiently to allow man-access therebetween whereby the lifting chains can be disconnected from the connection points in those modules and the slide-hatches H of those modules can be installed/closed. Referring to Figures 6A and 6B, the complexing Ki and K2 is installed regardless of the modules MA, MB, MC, MD are top-lifted or bottom-lifted into position. The complexing K1 includes a hatch Ni (see Figure 6A), comprising an interior wall section and a fire-resistant panel overlying that section, installed between the walls WA and WB, the side edges of the fire-resistant panel of the hatch NI forming fire-resistant seals with the adjacent side edges of the walls WA and WB, and a floor or ceiling section RI (see Figure 6A) which connects to a floor or ceiling section, respectively, of the modules MA and MB. Similarly, the complexing K2 includes a hatch N2 (see Figure 6A), comprising an interior wall section and a fire-resistant panel overlying that section, installed between the walls WC and WD, the side edges of the fire-resistant panel of the hatch N2 forming fire-resistant seals with the adjacent side edges of the walls WC and WD, and a floor or ceiling section R2 (see Figure 6A) which connects to a floor or ceiling section, respectively, of the modules MC and MD. The fire-resistant barrier Bi isolating SOU Si from SOU S2 thus comprises the fire resistant walls of the modules MA and MB, the fire-resistant lengths of material compressed against the lower edges of those walls and the fire-resistant panel of the hatch NI. Similarly, the fire-resistant barrier B2 isolating SOU S2 from SOU Si thus comprises thefire-resistant walls of the modules MC and MD, thefire-resistant lengths of material compressed against the lower edges of those walls and the fire-resistant panel of the hatch N2. Figure 7A is a schematic exploded view showing the same intermodular complexing components as are shown at Figure 6B and modules MA', MB', MC' and MD' which are the same as the modules MA, MB, MC and MD respectively though the (outer) end wall of each, like the (inner) side wall thereof, comprises a fire-resistant wall 0 of the same construction as the fire-resistant side wall whereby the resulting SOUs, SI' and S2' (shown in Figure 7B), are additionally isolated at opposite ends thereof, by fire-resistant barriers BE

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each of which consists of or includes the respective fire-resistant wall 0 and a respective fire-resistant length of material 98 (not shown) compressed against the lower edge of that wall 0. The SOUs Sl' and S2' thus define a pair P of sole occupancy units which is repeatable along a horizontal axis A whereby in a modular building 100' including unit pairs P arranged in end-to-end relation, each SOU in each pair is isolated from the SOU lying adjacent to it in a direction perpendicular to the axis A (i.e. the other SOU in the respective pair P) and the SOU(s) lying adjacent to it in a direction parallel to the axis A. Figures 8A to 8D show successive stages in manufacture of a module M (see Figure 8D) - being any one of modules MA, MB, MC and MD - as shown in Figure 5B. Referring firstly to Figure 8A, the frame structure D of the module M is formed, that frame structure including a base perimeter frame and a wall frame respectively comprising a base frame member G and a wall frame section J which are to form part of the fire-resistant wall W of the module M. The member G is defined by a length of channel, between opposite flanges of which extends a section of round bar defining a connection point Y near a lower corner of the wall W, being the fire-resistant wall WA, WB, WC or WD of the module M. Referring now to Figure 8B, an inverted T-section member T is attached (e.g. welded) to an upper face of the lower flange of the member G, whereby to extend the length of the member G and such that one of the opposed flanges of the member T projects laterally outwardly from the lower flange of the member G, thereby defining a lip L. A cut-out CO is formed in the web and laterally inwardly projecting flange of the member T adjacent the connection point Y to accommodate it and to facilitate access to it and thus connection of a lifting chain thereto and disconnection of the lifting chain therefrom. Horizontal and vertical Z-section members Z are next secured to the frame section J and members G and T. The opposite lower corner of the wall W (not shown), is likewise configured with lip L, Z-section members, round bar, defining a connection point Y, and a cut-out CO in the T-section member, whereby it includes a configuration which is a mirror image of that shown in Figure 8B. Next, referring to Figure 8C, a main section PM of the panelling P is applied over the members Z, the wall frame section J, the base frame member G and the T-section member T, the main section PM including a first panel P1 and a second panel P2, laminated together to define respective layers of the main panelling section PM, each of which panels is formed in the shape of a rectangle with cut-outs at lower comers thereof so as to occupy all of the area of the wall W except for the area defined below the upper face of the central web of the horizontal member

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Z and laterally outward of the laterally inner face of the central web of the vertical member Z, at each lower comer of the wall W. Each of panels P1 and P2 abuts the central web of each of the members Z along its entire length, covering the flange of that web which is innermost in the module M. The main section PM further comprises a third panel P3, which also is formed in the shape of a rectangle with cut-outs at lower corners thereof, so as to occupy all of the area of a lower section of the wall W which extends the entire length of the wall W, except for the area defined below and laterally outward of the toes/tips of the flanges of the members Z which are outermost in the module M at each lower corner of the wall W, thus covering those flanges. The panel P3 is laminated to the panels P1 and P2 and defines a third, exterior, layer of the panelling main section PM at a lower portion of the wall W, the exterior layer of the section PM upward of that portion being defined by the panel P2. Fireproofing may be provided to the junctions between the panels and metal members/framework, which fireproofing may comprise, for example, silicone and/or plastering (over the junctions), and screws and/or nails may be used to secure the panels to the metal members/framework. There is thus formed, at each lower comer of the module M, a respective laterally outwardly opening slot Q, defined by the perpendicular members Z, member T, frame section J, member G and panel P3, the slot Q as shown in Figure 8C being the mirror image of the slot (not shown) at the opposite lower corner of the wall W. Each slot Q is arranged to receive a respective hatch H as shown in Figure 8D. Each hatch H comprises three panels HI, H2 and H3 which are laminated together to define respective layers of the hatch H. The panels Hi and H2 are the same thickness as the panels P1 and P2 respectively, and have a height substantially equal to, though slightly smaller than, the distance between the upper face of the laterally outwardly projecting flange of the member T and the lower face of the central web of the horizontal member Z, and a length (horizontal dimension) substantially equal to, though slightly smaller than, the distance between the laterally outer face of the central web of the vertical member Z and the mouth of/entrance to the slot Q. The panel H3 is the same thickness as the panel P3, and has height substantially equal to, though slightly smaller than, that of the respective cut-out in the panel P3. Each hatch H is thus sized and shaped to be sideways introduceable into the respective slot Q and thence slideable in and along that slot whereby it forms a substantially size-for-size fit therein, as shown at Figure 8D. The panelling P is thus defined by the main

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section PM and the hatches H when fitted in the slots Q. In the main section PM, at each lower comer of the wall W, a horizontal shoulder PH is defined by the outer (lower) flange of the horizontal member Z and a portion of the panel P3 overlying it, and a vertical shoulder PV is defined by the outer flange of the vertical member Z and a portion of the panel P3 overlying it. Correspondingly, in each of the respective hatches H, a horizontal shoulder HH is defined by portions of the panels HI and H2 which project upwardly beyond the upper edge of panel H3 and a vertical shoulder HV is defined by portions of the panels Hi and H2 which project laterally inwardly beyond the vertical, laterally inner, edge of the panel H3. When each hatch H is installed, the shoulders PH and HH at each lowermost comer of the wall W define mutually overlapping fire-resistant horizontal portions of the wall W, while the shoulders PV and HV define mutually overlapping fire-resistant vertical portions of the wall W, whereby, advantageously, nowhere is there a discontinuity in the fire-resistant panelling P which extends straight therethrough. The panelling P thus has satisfactory fire resistance properties throughout its entire area, notwithstanding that it comprises a main section PM and hatch sections H formed separately from the main section giving rise to junctions within the panelling P. Shown in Figures 9A to 9C are successive stages of installation of module M in the case where it is a ground storey module and thus being landed directly atop pier wall footing 90. Referring firstly to Figure 9A, the module M minus the hatches H is bottom-lifted via lifting chains (not shown) connected to each of the connection points Y (including those exposed as a result of the hatches 8 being absence from the slots Q). Referring to Figure 9B, the module M minus the hatches H is landed on the pier wall footing 90 such that the lower edge of the wall W, comprising the laterally outwardly projecting flange of the member T, is received against the upper face of length of material 98, whereby the length 98 is compressed between that edge/flange and forms a fire-resistant seal between the wall W and footing 90. Thereafter, following removal of the lifting chains from the connection points Y, the hatches H are inserted, in the manner previously described, into the respective slots Q, whereby the panelling P is fully assembled and the fire-resistant barrier, comprising that panelling, the laterally outwardly projecting flange of the member T and the compressed length of material 98 is formed. In the event that each module is top-lifted, consistent with what is shown at Figure 5A, the lifting points Y are unnecessary and omitted, and so too are the hatches H

CUsersbAppData"RoamingManage\Work\Recent\35252539AU Construction of a nodlar building cludig at Iesto e fire-reistant barrier between adjacent modle therein\35252539 amended page 2SPA(2l1986343.l1).doo,-l15'09202 1

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and members Z (which members give rise to the slots Q), whereby the wall W comprises a single rectangular inner panel, instead of the panel P1 and panels Hi (of the two hatches H of the wall W) and taking up all of the area occupied by those three panels, a single rectangular intermediate panel, instead of the panel P2 and panels H2 (of the two hatches H of the wall W) and taking up all of the area occupied by those three panels, and a single rectangular outer panel, instead of the panel P3 and panels H3 (of the two hatches H of the wall W) and taking up all of the area occupied by those three panels, each panel thus defining a layer which is substantially continuous throughout the area which it occupies. It will be appreciated that each length of material 98 can, instead of being applied to the structural component atop which a given module is landed (being either the pier wall footing or a lower storey module in the examples described and illustrated), be pre-applied to the lower edge of the fire-resistant wall W of that module. For example, a length of material 98 can, instead of being applied to the pier wall footing 90 as shown in Figure 9C, be pre-applied to the lower edge of the fire-resistant wall W of that module, as shown in Figure 10. It will generally be preferable that it not be a lower edge of a given wall W to which the length of material 98 is applied because the length of material if applied to the lower edge could be prone to damage, e.g. while the module is being lifted with forklift or simply by resting on the ground in a storage yard. In an alternative embodiment of the invention, two modules, which will form part of the same SOU in the building and the fire-resistant walls of which are to form a part of a fire-resistant barrier which isolates that SOU from one or more other SOUs in the building, are arranged side-by-side (instead of one atop the other) and a length 98 of material is (rather than being arranged between adjacent top and bottom edges of the fire-resistant walls of the two modules) arranged between adjacent side edges of the fire-resistant walls of the two modules and compressively deformed between those edges (e.g. by moving either or each of the modules sideways towards the other, such as by pushing it, possibly while it is perhaps supported on rollers (which are later removed), with a hydraulic ram), whereby the fire resistant barrier comprises the two fire-resistant walls and the (vertically extending) length of material 98 compressively deformed therebetween. The invention is thus not restricted to a reliance being placed on gravity to effect the compressive deformation of the fire resistant body of material in the formation of fire-resistant barrier, even though

CsrssbtAppDa"RoamingiManage\Work\Recnt\35252539AU Construction of a odular building icluding atIneastoe fire-resistant barrier betwnee adjacent modues therein\35252539 ameded pages 2SPA(2I1986343.I1).doc,-I15'09202 1

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gravity-driven compressive deformation of the fire-resistant body of material, as is effected in the illustrated embodiments, is generally preferable. It will be apparent, from the embodiments described and illustrated, that access to edges of fire-resistant walls of modules in abutting relation, which modules are arranged one beside or atop another and which face other modules that have already been positioned in the construction of the building, can be hindered or precluded by those other modules, and that the positioning of a respective length of material 98 such that it is compressed between the edges, results in a reliable fire seal orfire-resistant junction being formed (by the length of material 98) between the edges as a result of merely bringing those edges into abutting relation, the need for such access thus being eliminated. While various embodiments of the present invention have been described above, it should be understood that they have been presented by way of example only, and not by way of limitation. It will be apparent to a person skilled in the relevant art that various changes in form and detail can be made therein without departing from the spirit and scope of the invention. Thus, the present invention should not be limited by any of the above described exemplary embodiments. Throughout this specification and the claims which follow, unless the context requires otherwise, the word "comprise", and variations such as "comprises" and "comprising", will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps. The reference in this specification to any prior publication (or information derived from it), or to any matter which is known, is not, and should not be taken as an acknowledgment or admission or any form of suggestion that that prior publication (or information derived from it) or known matter forms part of the common general knowledge in the field of endeavour to which this specification relates.

Claims

CsrssbtAppDa"RoamingiManage\Work\Recnt\35252539AU Construction of a odular building icluding atInast on fire-resistant barrier betwnee adjacent module therein\35252539 amnded pages 2SPA(2 1986343 )doc-15'09202 1 - 21 THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS:

1. A method of constructing a modular building which includes laterally adjacent first and second prefabricated building modules, a structural building component, arranged adjacent to and in abutting relation with the first module, and afire-resistant barrier isolating the first module from the second module, the method including arranging the modules and said structural building component such that a fire-resistant wall of the first module faces the second module and so as to deform a body of material compressively, thereby forming a fire-resistant seal, between an edge of said wall and said structural building component, said body comprising fire-resistant material, whereby the fire-resistant barrier comprises said wall and the compressively deformed body.

2. A method of constructing a modular building according to claim 1, said building including a building structural component and a further fire-resistant barrier, which isolates the second module from the first module, the method including arranging the modules and said building structural component such that a fire-resistant wall of the second module faces the first module and such that a body of material is compressively deformed, thereby forming a fire-resistant seal, between an edge of the fire-resistant wall of the second module and said building structural component, that body comprising fire-resistant material, whereby the further fire-resistant barrier comprises the fire-resistant wall of the second module and the body compressively deformed between the edge of the fire-resistant wall of the second module and said building structural component.

3. A method according to claim 2, wherein said building structural component comprises a footing or foundation arranged such that the second module is supported on it in the modular building, and said edge of the fire-resistant wall of the second module is a bottom edge of that wall.

4. A method according to claim 3, wherein said footing or foundation comprises a pier wall footing.

5. A method according to any one of the preceding claims, wherein said structural

C:UsrmbAppDa'aotaingiManage\Work\Recnt\35252539AU Construction of a odular building icluding atIneastoe fire-resistant barrier betwnee adjacent modues therein\35252539 ameded pages 2SPA(2I1986343.I1).doc,-I15'09202 1

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building component comprises a footing or foundation arranged such that the first module is supported on it in the modular building, and said edge of the fire-resistant wall of the first module is a bottom edge of that wall.

6. A method according to claim 5, wherein said footing or foundation comprises a pier wall footing.

7. A method according to any one of the preceding claims, wherein said structural building component is arranged such that the second module is supported on it in the building.

8. A method according to any one of claims 5 to 7 as dependent from any one of claims 2 to 4, wherein said structural building component is said building structural component.

9. A method of constructing a modular building according to any one of the preceding claims, the building having first and second sole occupancy units comprising the first and second modules respectively.

10. A method according to any one of claims 1 to 4, wherein the structural building component is a third prefabricated building module.

11. A method according to claim 10, wherein the third module includes a fire-resistant wall and is arranged such that said body of material is compressively deformed between an edge of that wall and the edge of the fire-resistant wall of the first module, whereby the fire resistant barrier includes the fire-resistant wall of the third building module.

12 A method according to claim 11, wherein the third module is arranged such that said first module is laterally adjacent to it in the building and said edge of thefire-resistant wall of said first module is a side edge of that wall.

13. A method of constructing a modular building according to claim 12, the building

C:UsrsobAppData"RoamingManage\Work\Recent\35252539AU Construction of a nodlar building cludig at Iestoe fire-reistant barrier between adjacet modle therein\35252539 amended page 2SPA(2l1986343.l1).doo,-l15'09202 1

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including a fourth prefabricated building module, the method including arranging the fourth module such that it is laterally adjacent to the third building module and laterally adjacent to and in abutting relation with the second module, and such that the fire-resistant wall of the third module faces the fourth module, whereby the fire-resistant barrier isolates the third module from the fourth module.

14. A method according to claim 11, wherein the third module is arranged such that said first module is supported on it in the building and said edge of the fire-resistant wall of the first module is a bottom edge of that wall.

15. A method of constructing a modular building according to claim 14, the building including a fourth prefabricated building module, the method including arranging the fourth prefabricated building module such that it is laterally adjacent to the third building module, and the second module is supported on it in the building, and such that thefire-resistant wall of the third module faces the fourth module, whereby thefire-resistant barrier isolates the third module from the fourth module.

16. A method of constructing a modular building according to claim 13 or 15, said building including a further fire-resistant barrier, which isolates the second and fourth modules from the first and third modules, the method including arranging the modules such that a fire-resistant wall of the second module faces the first module and a fire-resistant wall of the fourth module faces the third module and such that a body of material is compressively deformed between an edge of the fire-resistant wall of the second module and an edge of the fire-resistant wall of the fourth module, whereby the furtherfire-resistant barrier comprises the fire-resistant walls of the second and fourth modules and the body of material compressed between the edges thereof.

17. A method according to any one of the preceding claims, wherein at least one said body of material is pre-applied to either of the edges, or edge and component, between which it is compressively deformed.

18. A method according to any one of the preceding claims, wherein thefire-resistant

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material of which at least one said body is comprised is deformable such that the compressive deformation thereof comprises compressive deformation of that fire-resistant material.

19. A method according to claim 18, wherein the or each body comprising deformable fire-resistant material is defined solely by that fire-resistant material.

20. A method according to claim 18 or 19, wherein the deformable fire-resistant material is resiliently deformable.

21. A method according to any one of claims 18 to 20, wherein the deformable fire resistant material comprises foam.

22. A method according to any one of claims I to 18, wherein at least one said body of material comprises, in addition to said fire-resistant material, a deformable material applied over that fire-resistant material, and wherein said deformable material thereof is arranged to lie adjacent or in contact with either or each of the edges, or edge and component, between which it is compressively deformed, to deform thereagainst when compressively deformed.

23. A method according to claim 22, wherein the fire-resistant material comprises intumescent material.

24. A method according to claim 23, wherein said deformable material of the or each body that further comprises fire-resistant material has a composition which is such that it is destroyed when exposed to fire whereby space which was occupied by the deformable material of that body, and is between the edges or the edge and component between which that body is compressively deformed, becomes occupied by said intumescent material as a result of expansion thereof.

25. A method according to any one of claims 22 to 24, wherein the deformable material that is applied over fire-resistant material is resiliently deformable.

26. A method according to any one of claims 22 to 25, wherein the deformable material

C:UsrsbtAppDa~aotaingiManage\Work\Recnt\35252539AU Construction of a odular building icluding atIneastoe fire-resistant barrier betwnee adjacent modues therein\35252539 ameded pages 2SPA(2I1986343.I1).doc,-I15'09202 1

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that is applied over fire-resistant material is foam.

27. A method according to any one of the preceding claims, wherein at least one said body is provided as a single piece.

28. A method according to any one of the preceding claims, wherein at least one said body of material is defined by a length or strip.

29. A method of constructing a modular building according to any one of claims 10 to 16, or any one of claims 17 to 28 as dependent therefrom, the building having first and second sole occupancy units, the method being such that the first sole occupancy unit comprises the first and third modules and the second sole occupancy unit comprises the second module.

30. A method of constructing a modular building according to claim 13, 15 or 16, or any one of claims 17 to 29 as dependent therefrom, the method being such that the second sole occupancy unit further comprises the fourth module.

31. A method according to claim 9, 29 or 30, the method being such that said first and second sole occupancy units comprise first and second townhouses respectively.

32. A method according to any one of the preceding claims, the barrier(s) including the component(s).

33. A modular building, being that constructed by a method according to any one of the preceding claims.

34. A body of material, being that applied to a said edge or component, to be compressively deformable in a method according to any one of claims 1 to 32.

1/13 18 Oct 2021

M2 SOU2

F 2016204706

SOU1

M1 FIGURE 1

M1 SOU1 M2

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2/13

98 25 28 29

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4/13

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5/13

100

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6/13

90 98 2016204706

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EC MD ED MD

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7/13

X MC MD X

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8/13 18 Oct 2021

N2 MD MC 2016204706

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10/13 18 Oct 2021

FIGURE 7B 2016204706

G

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11/13

PH P1 P2 18 Oct 2021

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12/13

P2 18 Oct 2021

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13/13

M P P2 18 Oct 2021

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