A roofing system

Abstract

A roofing system 1 for forming a roof structure 2, the roofing system comprising an arrangement for forming at least one roof structure housing 3, wherein the at least one roof structure housing is co

Description

The present invention relates to a roofing system for use in the construction of a roof structure onto a building and a method of assembling the roof structure onto a building. In the construction of modern buildings, for example domestic homes, it has become increasingly desirable to increase the energy efficiency of buildings as well as to decarbonise these new buildings. One such example which exemplifies these desires is the Future Homes Standard, which is set to come into effect in England in 2025, wherein homes built in compliance with the standards set are expected to lead to a reduction in total carbon dioxide emissions by 75-80% in comparison to homes built to previous building standards. To meet this reduction, changes in Part L of the Building Regulations have been recently implemented to lay out the groundwork towards achieving the targets set by the Future Homes Standard. Of note, the development and adoption of low-carbon technologies such as for heating and power generation technologies in buildings, for example solar photovoltaics and heat recovery units, were identified as a means towards achieving the goals of the Future Homes Standard. Concurrent to these trends there has been an increasing demand for prefabricated building structures such as wall panels and roof structures. There are a number of benefits to the prefabrication of building structures, including a reduction of costs of labour resulting from a reduction in building time and a reduction in the number of possible mistakes and setbacks. Essentially, prefabricated structures can be assembled in facilities better suited to their assembly than a construction site, resulting in improved efficiency. The new technologies enabling constructors to meet the goals of the Future Homes Standard for instance may have complex architecture of mechanical, electrical, and plumbing (MEP) components which must be integrated into the home, and as such it is convenient to house them in a utility cupboard, in particular in a prefabricated utility cupboard (PUC) that can either be constructed and installed with MEP components off-site and transported and installed to a building as a modular system or constructed and installed in the building on-site, in either case decreasing construction time and complexity on site. The PUC can be constructed with a simplified input / output architecture to serve all the MEP components therein and integrated within the MEP architecture of the building as one single, modular unit. However, these PUCs may also have significant physical footprint in the building thereby resulting in a reduction of useable storage space in the living spaces for occupiers of newly built homes, for example for clothing and other objects that are frequently accessed by the residential occupants of a building. Accordingly, there is a need to provide a solution which enables housing of this equipment whilst also maximising the easily accessible storage space located within the living space of a home. It is an object of the present invention to obviate or mitigate the problems outlined above, in particular to minimise the physical footprint of a prefabricated utility cupboard in the living space of a building. Another object of the present invention is to provide a roofing system configured to house at least one piece of equipment for providing functionality to a building, thereby obviating or mitigating the use of storage space within the living space of a building for storage of the at least one piece of equipment for providing functionality to a building. Another object of the present invention is to provide a roofing system that is configured to support at least one piece of equipment for providing functionality to a building and / or the equipment and personnel required to install the at least one piece of equipment for providing functionality to the building. Another object of the present invention is to provide a roofing system of modular design that is configured to be easily and rapidly assembled in an integrated manner with the other components of the roofing system. Another object of the present invention is to provide a roofing system that is configured to provide easy access for personnel to install and / or maintain the at least one piece of equipment for providing functionality to a building. According to a first aspect of the present invention, there is provided a roofing system for forming a roof structure, the roofing system comprising a means for forming at least one roof structure housing, wherein the at least one roof structure housing is configured to form at least part of the roof structure, wherein the roof structure housing is suitable for housing at least one piece of equipment for providing functionality to a building, the roofing system having a structural support means for supporting the roofing system between two opposite structural supports of the building. Ideally, the roofing system having its own structural support means for supporting the roofing system between two opposite structural supports of the building. Preferably, the two opposite structural supports of the building being two opposite walls. Ideally, the roof structure housing has means for protecting the at least one piece of equipment from weather conditions whilst the roof structure remains uncovered. Advantageously, the roof structure housing provides protection to the at least one piece of equipment. Further advantageously, housing the equipment in the roof structure housing ensures that the equipment for providing functionality to a building does not become damaged. The equipment for providing functionality to a building can for example be mechanical, electrical or plumbing (MEP) equipment. Further advantageously, providing a roof structure housing in the roof structure provides a space for housing at least one piece of equipment for providing functionality to a building such as utility equipment (comprising mechanical, electrical or plumbing equipment) away from the main rooms of the building where space may be more valuable to the occupiers / residents of the building. In certain buildings, the loss of space for prefabricated utility cupboards can be anything from 10 ft2 to 35 ft2 and so this can be a significant loss of storage space for occupants of dwellings, which often do not have a garage of further additional outdoor storage space. Ideally, the at least one piece of equipment for providing functionality to a building being operably engaged with services of the building. Ideally, the roof structure housing comprises a means for preventing the exposure of the at least one piece of equipment to weather conditions. Ideally, the roof structure housing comprises a means for preventing the exposure of the at least one piece of equipment to weather conditions whilst the roof structure remains uncovered. Ideally, the means for preventing the exposure of the at least one piece of equipment to weather conditions comprises a weather-resistant portion. Ideally, the means for preventing the exposure of the at least one piece of equipment to weather conditions comprises a water-impermeable portion. Ideally, the means for preventing the exposure of the at least one piece of equipment to weather conditions is weather-resistant. Ideally, the means for preventing the exposure of the at least one piece of equipment to weather conditions is water-impermeable. Ideally, the roof structure housing is watertight. Ideally, the roof structure housing is windproof. Ideally, the roof structure housing is resistant to sunlight. Ideally, the roof structure housing is resistant to harsh or extreme weather conditions. Ideally, the roof structure housing comprises a frame with the protecting means wrapped around at least part of the frame. Ideally, the roof structure housing comprises a frame with the protecting means wrapped around and enclosing all of or part of the frame. Ideally, the roofing system comprises at least one roof cassette for forming at least part of an upper portion of the roof structure suitable for receiving covering elements thereon and for forming at least part of an upper portion of the roof structure housing suitable for receiving covering elements thereon. Ideally, the roofing system comprises at least two roof cassettes for forming a ridge of a roof. Ideally, the roofing system comprises at least two roof cassettes for forming a ridge of a pitched roof. Ideally, the roofing system comprises at least two roof cassettes for forming a ridge of a dualpitched roof. Ideally, the roofing system comprises one or more trusses configured to form part of the roof structure. Ideally, the roofing system comprises one or more mono trusses configured to form part of the roof structure. Ideally, the roof structure is supportable on the building. Ideally, the roof structure housing and / or one or more trusses are supportable on the building. Ideally, the roof structure housing and / or one or more trusses are supportable on one or more walls of the building. Ideally, the roof structure housing and / or one or more trusses are supportable on two or more walls of the building. Ideally, the roof structure housing and / or one or more trusses are supportable on four walls of the building. Ideally, the roof structure housing and / or one or more trusses are supportable on an inner leaf of the building. Ideally, the roof structure housing and / or one or more trusses are supportable on one or more inner leaves of the building. Ideally, the one or more trusses and the at least one roof cassette are configured to define at least one coplanar pitch of a roof. Ideally, the roof structure housing comprises at least one spandrel wall panel for closing at least one end of the roof structure and / or roof structure housing. Ideally, the roof structure housing comprises at least one internal spandrel for forming at least one side of the roof structure housing. Ideally, the at least one roof cassette is suitable for forming a top portion of the roof structure housing. Ideally, the roof structure is configured to receive at least one roof covering element. Ideally, the roof structure housing and / or the one or more trusses are configured to receive at least one roof covering element. Ideally, the roofing system and / or the roof structure housing is a modular component formable off-site. Ideally, the roofing system and / or the roof structure housing is a prefabricated assembly. Ideally, the roofing system and / or the roof structure housing is a prefabricated utility cupboard. Ideally, at least part of the roof structure housing comprises insulation. Ideally, the roofing system comprises at least one floor cassette or platform. Preferably, the at least one floor cassette or platform provides structural support means for the roofing system. Ideally, the at least one roof cassette is configured to abut in use at least one of the one or more trusses to form a pitched roof. Ideally, the at least one roof cassette is configured to abut in use at least one of the one or more trusses to form a coplanar pitched roof. Ideally, each of the least two roof cassettes are configured to abut at least one of the one or more trusses to form two pitches of a roof. Ideally, each of the at least two roof cassettes are configured to abut at least one of the one or more trusses to form two pitches of a gable roof. Ideally, the at least one roof structure housing spans the entire distance between a first and second end of the building. Ideally, the at least one roof structure housing spans at least part of the entire distance between the first and second end of the building. Ideally, the at least one roof structure housing is supported by a wall on each of a first and second wall of a first and second end of the building. Ideally, the roof structure housing comprises at least one floor cassette or platform for supporting in use the at least one piece of equipment for providing functionality to the building and / or the equipment and personnel required to install or maintain the at least one piece of equipment for providing functionality to the building. Ideally, the roof structure is supported on a plurality of walls of the building. Ideally, the roof structure is supported on four walls of the building. Ideally, the at least one roof structure housing is extendible from a first end of the building to a second end of the building. Ideally, the at least one roof structure housing is extendible from a first gable end of the building to a second gable end of the building. Ideally, the at least one roof structure housing is extendible from a first wall of the building to a second wall of the building. Ideally, the at least one roof structure housing is extendible from a gable end wall of the building to a party wall of the building. Ideally, the at least one roof structure housing is extendible along at least part of the distance from a first wall of the building to a second wall of the building. Ideally, the at least one roof structure housing is extendible along at least part of the distance from a gable wall of the building to a party wall or another gable wall of the building. Ideally, the at least one floor cassette or platform is extendible from a first end of the building to a second end of the building. Ideally, the at least one floor cassette or platform is extendible from a first gable end of the building to a second gable end of the building. Ideally, the at least one floor cassette or platform is extendible from a first wall of the building to a second wall of the building. Ideally, the at least one floor cassette or platform is extendible from a gable end wall of the building to a party wall of the building. Ideally, the at least one floor cassette or platform is extendible along at least part of the distance from a first wall of the building to a second wall of the building. Ideally, the at least one platform is extendible along at least part of the distance from a gable wall of the building to a party wall or another gable wall of the building. In a second embodiment, the at least one roof structure housing is extendible from a first wall of the building to a second wall of the building, wherein these first and second walls extend between the gable walls. Ideally, the at least one roof structure housing is extendible along at least part of the distance from a first wall of the building to a second wall of the building, wherein the first and second walls extend between the gable walls. Ideally, the at least one floor cassette or platform is extendible from a first end of the building to a second end of the building. Ideally, the at least one floor cassette or platform is extendible from a first wall of the building to a second wall of the building, wherein the first and second walls extend between the gable walls. Ideally, the at least one floor cassette or platform is extendible along at least part of the distance from a first wall of the building to a second wall of the building, wherein the first and second walls extend between the gable walls. Ideally, in the second embodiment, girder trusses are provided extending between the first wall and the second wall of the building, wherein the first and second walls extend between the gable walls. Preferably, the girder trusses extend along the longitudinal sides of the roof structure housing. Ideally, the girder trusses extend long the longitudinal sides of the platform. Ideally, the girder trusses provide structural support means for the roofing system. In the second embodiment, the floor cassette or platform is mechanically coupled to each girder. Ideally, the floor cassette or platform is mechanically coupled to each girder truss at or about the eaves at one end of the platform and the platform is mechanically coupled to each girder truss away from the eaves at the other end of the platform. In the second embodiment, the roof structure housing comprising one or more upstanding walls, two of which extend parallel to the main plane of the trusses and two of which extend perpendicular to the main plane of the trusses. Ideally, the walls which extend parallel to the main plane of the trusses extend from the ridge of the girder truss towards one of the opposing eaves only. Preferably, the walls which extend parallel to the main plane of the trusses extend from the ridge of the girder truss towards one of the opposing eaves only a distance sufficient to create a depth to house the at least one piece of equipment. Ideally, one of the walls which extends perpendicular to the main plane of the trusses extends along a bisecting plane of the trusses extending from the ridge to the platform substantially perpendicular to both. Ideally, this wall extending between the ridge and the platform defines a door for entering the roof structure housing. Preferably, the platform extends from this wall with the door towards the other opposite eaves between the girder trusses. Ideally, this part of the platform extending between the wall with the door and the opposite eave has access means for accessing the loft. Ideally, the roof structure housing comprises a second closed wall parallel to the wall with the door and being spaced apart from the wall with the door towards the eaves. Preferably, untrussed rafters are disposed between the top of the wall with the door and the eaves between the girder trusses. Advantageously, untrussed rafters create a space for occupants to move about within the loft when the enter the loft via the access means. Ideally, the untrussed rafters are bird mouthed over the wall plate and ideally over a ledger on the wall plate. Preferably, the untrussed rafters are secured into position at or about their ends using mechanical fastening means such as brackets. Ideally, mono trusses are mechanically coupled between the outside surface of the closed wall and the adjacent eaves between the girder trusses. In the second embodiment, only a single roof cassette is required to be disposed between the mono trusses and the ridge of the roof. Ideally, the roof structure housing comprises one or more walls. Ideally, at least one of the one or more walls of the roof structure housing being formable from the at least one internal spandrel for forming at least one side of the roof structure housing. Ideally, at least one of the one or more walls of the roof structure housing comprises insulation. Preferably, the floor of the roof structure housing comprises insulation. Ideally, the roof structure housing comprises one or more roofing components. Ideally, the roof structure housing comprises one or more inclined roofing components. Ideally, the exposed parts of the roof structure housing are wrapped or lapped with the protecting means. Ideally, the exposed parts of the frame of the roof structure housing are wrapped or lapped with the protecting means. Ideally, the one or more walls and / or the one or more roofing components are wrapped or lapped with the protecting means. Ideally, the at least one floor cassette or platform extends from the first end of the building to the second end of the building. Ideally, the at least one floor cassette or platform partly extends from the first end of the building to the second end of the building. Ideally, the at least one floor cassette or platform is extendible from the first wall of a first end of the building to a second end of the building. Ideally, the at least one floor cassette or platform extends from a first wall of the first end of the building to a second wall of the second end of the building. Ideally, the at least one floor cassette or platform is extendible from a first wall of a first end of the building to a second end of the building. Ideally, the at least one floor cassette or platform extends from a first wall of the first end of the building to a second wall of the second end of the building. Ideally, the at least one floor cassette or platform partly extends from a first wall of the first end of the building to a second wall of the second end of the building. Ideally, the at least one floor cassette or platform comprising the at least one floor cassette. Ideally, the at least one floor cassette or platform comprises a decking comprising a continuous solid surface for receiving in use the at least one piece of equipment for providing functionality to the building and / or the equipment and personnel required to install the at least one piece of equipment for providing functionality to the building. Ideally, the at least one floor cassette or platform comprises a decking comprising a continuous solid surface for receiving and / or supporting in use the at least one piece of equipment for providing functionality to the building and / or the equipment and personnel required to install the at least one piece of equipment for providing functionality to the building. Ideally, the roofing system comprises a truss receiving means. Ideally, the truss receiving means comprises at least one bracket member. Ideally, the at least one bracket member is receivable and securable on, and supportable by, the at least one floor cassette or platform. Ideally, at least one of the one or more trusses are receivable on, and supportable by, the at least one bracket member. Ideally, the roofing system comprises at least two spandrel wall panels. Ideally, at least one of the at least two spandrel wall panels close an end of the roof structure and / or roof structure housing. Ideally, the at least two spandrel wall panels forming at least part of a wall. Ideally, one of the at least two spandrel wall panels being locatable at the first end of the building and another one of the at least two spandrel wall panels being locatable at the second end of the building or on the party wall. Preferably, at least one of the at least two spandrel wall panels being formable by two or more spandrel wall panel elements. Ideally, one of the at least two spandrel wall panels forming at least part of a party wall. Ideally, the at least two spandrel wall panels forming at least part of a gable end wall. Ideally, at least one of the at least two spandrel wall panels forming at least part of a party wall and at least one of the at least two spandrel wall panels forming at least part of a gable end wall. Ideally, at least one of the at least two spandrel wall panels comprising a means for preventing exposure of the at least one piece of equipment for providing functionality to a building to wet weather conditions. Optionally, the roof structure housing further comprises a partitioning means. Ideally, the partitioning means partitions the roof structure housing into two or more spaces. Ideally, the at least one piece of equipment for providing functionality to a building is locatable within one of the two or more spaces. In another embodiment, the partitioning means being configured to partition the internal volume of the roof storage housing from the remaining internal volume of the roof structure. Ideally, the means for preventing the exposure of the at least one piece of equipment for providing functionality to a building to weather conditions protects the at least one piece of equipment housed within the roof structure housing. Preferably, the means for preventing exposure of the at least one piece of equipment for providing functionality to a building to wet weather conditions protects the at least one piece of equipment housed within the roof structure housing. Preferably, the means for preventing the exposure of the at least one piece of equipment for providing functionality to a building to weather conditions protects the at least one piece of equipment housed within the portion of the roof structure housing wherein the at least one piece of equipment housed within the roof structure housing is located. Preferably, the means for preventing exposure of the at least one piece of equipment for providing functionality to a building to wet weather conditions protects the at least one piece of equipment housed within the portion of the roof structure housing wherein the at least one piece of equipment housed within the roof structure housing is located. Ideally, the at least one floor cassette or platform comprises at least one floor joist. Ideally, the roof structure housing is receivable on, and supportable by at least one wall of the building. Ideally, the at least one floor cassette or platform is receivable on, and supportable by at least one wall of the building. Ideally, the at least one floor joist is receivable on, and supportable by at least one wall of the building. Ideally, the at least one floor joist is receivable on, and supportable by at least one wall plate. Ideally, the plurality of floor joists are receivable on, and supportable by at least one gable end wall or party wall of the building. Ideally, the at least one floor cassette or platform comprises an aperture for accessing a space above the platform. Ideally, the at least one floor cassette or platform comprises an aperture for accessing a space within the roof structure housing. Ideally, the aperture of the platform has an access hatch for accessing the space within the roof structure housing. Preferably, the access hatch has a handrail extending upwardly from the access hatch into the loft for user safety. Advantageously, the handrail and support frame thereof prevent a user inadvertently falling through the access hatch. Ideally, the roof structure housing comprises a prefabricated utility cupboard. Ideally, the prefabricated utility cupboard may take up a part only of the footprint of the floor cassette or platform. Ideally, the access hatch may be located on a portion of the floor cassette or platform outside of the prefabricated utility cupboard. Ideally, when the access hatch is open into the space, access to the prefabricated utility cupboard housing equipment is not possible. Advantageously, this means that the access hatch must be closed before an operator can access the prefabricated utility cupboard. This means that an operator is not able to walk out of the prefabricated utility cupboard after servicing equipment for example and fall down an open access hatch. Ideally, the prefabricated utility cupboard has an openable door for gaining access thereto. Ideally, the open access hatch blocks the door from opening into or out of the prefabricated utility cupboard. Preferably, the open access hatch engages against the door of the prefabricated utility cupboard preventing opening of the door. Ideally, the door of the prefabricated utility cupboard is lockable. Preferably, the door of the prefabricated utility cupboard comprises insulation. Ideally, the access hatch has a means for accessing the space in the attic. Preferably, the access hatch has an integrated loft ladder mounted thereon. Ideally, the access hatch has an integrated loft ladder mounted on an upper surface thereof. Ideally, the access hatch has an integrated extendable and / or foldable loft ladder mounted on an upper surface thereof. Ideally, the roof structure housing has means for lifting equipment into the attic space via the aperture in the platform. Preferably, the roof structure housing has pulley means for lifting equipment into the attic space via the aperture in the platform. Ideally, the roof structure housing has powered means for lifting equipment into the attic space via the aperture in the platform. Ideally, the roof structure housing has manual means for lifting equipment into the attic space via the aperture in the platform. Preferably, the roof structure housing has means for moving equipment both vertically into and out of the attic space and / or horizontally into the correct position within the roof structure housing. Ideally, the roof structure housing comprises cabling for electrical utilities. Preferably, the roof structure housing comprises piping for plumbing utilities. Ideally, the roof structure housing comprises adaptions for mechanical utilities. Ideally, the utility cupboard comprises cabling for electrical utilities. Preferably, the utility cupboard comprises piping for plumbing utilities. Ideally, the utility cupboard comprises adaptions for mechanical utilities. Ideally, the cabling, piping and adaptations are pre-fitted and installed in a factory environment. Ideally, the roof structure housing / utility cupboard is adapted for housing batteries. Preferably, the roof structure housing / utility cupboard is adapted for housing batteries suitable for storing electricity generated by solar panels. Ideally, the roof structure housing / utility cupboard is adapted for housing photovoltaic batteries suitable for storing electricity generated by solar panels. Preferably, the roof structure housing / utility cupboard is adapted for housing an inverter. Preferably, the roof structure housing / utility cupboard is adapted for housing a PV inverter. Ideally, the roof structure housing / utility cupboard is pre-fitted with a PV inverter in a factory environment. Ideally, the roof structure housing / utility cupboard is adapted for receiving cabling for coupling solar panels to the batteries. Ideally, the roof structure housing / utility cupboard is pre-fitted with batteries in a factory environment. Ideally, where the roof structure housing / utility cupboard is adapted for housing electrical utilities, a fire suppression system is provided. Preferably, where the roof structure housing / utility cupboard is adapted for housing electrical utilities, a fire suppression system is provided within the roof structure housing / utility cupboard. Ideally, the fire suppression system comprises a sprinkler system. Ideally, where the roof structure housing / utility cupboard is adapted for housing electrical utilities, a fire warning system is provided. Preferably, where the roof structure housing / utility cupboard is adapted for housing electrical utilities, a fire warning system is provided within the roof structure housing. Ideally, the fire warning system comprises a fire alarm system. Preferably, the fire suppression system can be operably coupled to and / or operable by the Are warning system. Ideally, the fire warning system can be operably coupled to the electrical utilities to turn off the power from the electrical utilities in the event of detection of fire. Ideally, the roof structure housing / utility cupboard is adapted for housing a heat pump. Preferably, the roof structure housing / utility cupboard is adapted for housing a hot water cylinder. Ideally, the roof structure housing / utility cupboard is adapted for housing a mechanical ventilation with heat recovery system. Preferably, the roof structure housing / utility cupboard is finished with a wall panel such as plasterboard, ideally internally. Advantageously, this compartmentalises the roof structure housing / utility cupboard and provides 30 minutes to one hour fire protection. Ideally, the at least one roof structure housing is formable centrally in the roofing structure. Advantageously, the portion of the assembled roofing structure which is not the roof structure housing is usable as storage space in the building for storing other objects not being the at least one piece of equipment for providing functionality to a building. Ideally, the roof system further comprises a roof storage platform. Preferably, the roof storage platform is configured to comprise a storage platform. Ideally, the roof storage platform is a part of or fixable to the roof structure housing. According to a second aspect of the invention there is provided at least one roof structure housing configured to form at least part of the roof structure, wherein the roof structure housing is suitable for housing at least one piece of equipment for providing functionality to a building. The roof structure housing of the second aspect of the present invention may comprise any of the relevant technical features as defined according to the previous aspect of the present invention. According to a third aspect of the invention there is also provided a method for assembling a roof structure of a building, said method comprising: - assembling at least one roof structure housing configured to form at least a part of a roof structure of a building to form a prefabricated roof structure housing suitable for housing at least one piece of equipment for providing functionality to a building, and - lifting and positioning at least one truss using a means suitable for lifting and positioning, such that the at least one truss is proximal to the at least one roof structure housing. The roof structure of the third aspect of the present invention may comprise any of the relevant technical features as defined according to the previous aspects of the present invention. Ideally, the method for assembling a roof structure of a building comprising wrapping around and enclosing all or part of the roof structure housing with a means for preventing the exposure of the at least one piece of equipment for providing functionality to a building to weather conditions. Ideally, the method for assembling a roof structure of a building comprising housing the at least one piece of equipment for providing functionality to a building. Ideally, the method for assembling a roof structure of a building comprising receiving the at least one truss proximal to at least one roof structure housing using a truss receiving means. Ideally, said truss receiving means being fixable to the prefabricated roof structure housing. Ideally, the method for assembling a roof structure of a building comprising lifting and positioning the at least one roof structure housing onto the building using the means suitable for lifting and positioning. Ideally, the method for assembling a roof structure of a building comprising lifting and positioning at least one roof cassette using the means suitable for lifting and positioning, such that the at least one roof cassette abuts in use the at least one truss to form a roof pitch. Ideally, the method for assembling a roof structure of a building comprising lifting and positioning at least one spandrel wall panel using the means suitable for lifting and positioning, such that the at least one spandrel panel is locatable at a wall of the building. Ideally, the means suitable for lifting and positioning being a crane or the like. According to a fourth aspect of the invention, there is provided a building comprising a roofing system for forming a roof structure, the roofing system comprising a means for forming at least one roof structure housing, wherein the at least one roof structure housing is configured to form at least part of the roof structure, wherein the roof structure housing is suitable for housing at least one piece of equipment for providing functionality to a building. The roof system of the fourth aspect of the invention may comprise any of the relevant technical features as defined according to any of the previous aspects of the present invention. The invention will now be described, by way of example only, with reference to the accompanying drawings in which: - Figure 1 shows a cross section view of a roofing structure formed from the roofing system according to the first aspect of the present invention received on the walls of a building. Figure 2 is a perspective view of the roofing structure formed from a roofing system according to an embodiment of the first aspect of the present invention received on the walls of a building. Figure 3 is a bird’s-eye view of the roofing structure of the roofing system, as shown in Figure 2, shown in a partial view showing a plurality of roof rafters of the roofing structure. Figure 4 is a bird’s-eye view of the roofing structure of the roofing system, as shown in Figure 2, shown in a partial view showing a plurality of trusses of the roofing structure. Figure 5 is a perspective view of the roofing structure formed from a roofing system according to a further embodiment of the first aspect of the present invention received on the walls of a building. Figure 6 is a detailed end view of the roofing structure formed from the roofing system as shown in Figure 5. Figure 7 is a bird’s-eye view of the roofing structure of the roofing system, as shown in Figure 5, shown in a partial view showing a plurality of roof rafters of the roofing structure. Figure 8 is a perspective view of a roofing structure formed from the roofing system according to yet another embodiment of the first aspect of the present invention received on the walls of a building. Figure 9 is a detailed end view of the roofing structure formed from the roofing system as shown in Figure 5. Figure 10 is a bird’s-eye view of the roofing structure of the roofing system, as shown in Figure 8, shown in a partial view showing a plurality of roof rafters of the roofing structure. Figure 11, a, b c and d show a plan view of a rafter layout, a plan view of a panel truss layout, a section A-A view and a section B-B view respectively of a second embodiment of roofing system comprising a roof structure housing. Figure 12 is a first perspective view of a second embodiment of roofing system in accordance with the invention; Figure 13 is a second perspective view of a second embodiment of roofing system in accordance with the invention; Figure 14 is a third perspective view of a second embodiment of roofing system in accordance with the invention; Figure 15 is a detail view of the connection between the girder truss and the ledger; Figure 16 is a detail view of the untrussed rafters connected to the ledger and brackets; and Figure 17 is a detail view of the eave’s connection of the untrussed rafters and the ledger and wall plate. Referring generally to the drawings, there is provided a roofing system, generally indicated as reference numeral 1, for forming a roof structure 2, the roofing system 1 having at least one roof structure housing 3, in particular one roof structure housing 3, wherein the one roof structure housing 3 is configured to form at least part of the roof structure 2, wherein the roof structure housing 3 is suitable for housing at least one piece of equipment for providing functionality to a building (not shown). The roof structure housing 3 has a barrier 4 for protecting the at least one piece of equipment from weather conditions whilst the roof structure 2 remains uncovered. In use, the roof structure housing 3 provides protection to the at least one piece of equipment. Housing the equipment in the roof structure housing 3 ensures that the equipment for providing functionality to a building does not become damaged. The equipment for providing functionality to a building can for example be mechanical, electrical or plumbing (MEP) equipment. Providing a roof structure housing 3 in the roof structure 2 provides a space for housing at least one piece of equipment for providing functionality to a building such as utility equipment (including mechanical, electrical or plumbing equipment) away from the main rooms of the building where space may be more valuable to the occupiers / residents of the building. The roof structure housing 3 has a barrier 4 for preventing the exposure of the at least one piece of equipment to weather conditions, in particular whilst the roof structure 2 remains uncovered. The barrier 4 for preventing the exposure of the at least one piece of equipment to weather conditions is weather-resistant. The barrier 4 for preventing the exposure of the at least one piece of equipment to weather conditions is water-impermeable. The roof structure housing 3 is watertight. The roof structure housing 3 is windproof. The roof structure housing 3 is resistant to sunlight. The roof structure housing 3 is resistant to harsh or extreme weather conditions. The roof structure housing 3 has a frame 5 with the barrier 4 being a flexible sheet wrapped around at least part of the frame 5. In a non-limiting example the roof structure housing 3 has a frame 5 with the barrier 4 wrapped around and enclosing part of the frame 5, however other configurations fall within the scope of the patent. In a non-limiting example, as best shown in Figure 1, the roofing system 1 has at least one roof cassette 6, and in particular, two roof cassettes 6a, 6b for forming at least part of an upper portion 7 of the roof structure 2 suitable for receiving covering elements (not shown) thereon and for forming at least part of an upper portion 7 of the roof structure housing 3 suitable for receiving covering elements thereon (not shown). The roofing system 1 has two roof cassettes 6a, 6b for forming a ridge 8 of a roof. The roofing system 1 has two roof cassettes 6a, 6b for forming a ridge 8 of a pitched roof, in particular a dualpitched roof, however other configurations fall within the scope of the patent. The roofing system 1 has one or more trusses 9 configured to form part of the roof structure 2. The roof structure 2 is supported on the building. The roof structure housing 3 and the one or more trusses 9 are supported on the building. The one or more trusses 9 and the two roof cassettes 6a, 6b are configured to define at least one coplanar pitch of a roof. In a non-limiting example, the roof structure housing 3 has at least one spandrel wall panel 11 for closing at least one end of the roof structure 2 and / or roof structure housing 3. The roof structure housing 3 has at least one internal spandrel 5 for forming at least one side of the roof structure housing 3. The roof structure housing 3 is a prefabricated assembly 3. The roof structure housing 3 is a prefabricated utility cupboard 3. In a non-limiting example, at least part of the roof structure housing 3 has insulation 12. The roofing system 1 has at least one floor cassette 13. The two roof cassettes 6a, 6b are configured to abut in use at least one of the one or more trusses 9 to form a pitched roof, and in the embodiment as best shown in Figure 1, a co-planar pitched roof; however, other configurations fall within the scope of the patent. In a non-limiting example, as best shown in the embodiment of Figure 2 the one roof structure housing 3 spans the entire distance between a first and second end 14a, 14b of the building, however other configurations fall within the scope of the patent, such as the embodiment illustrated in Figure 8 wherein the one roof structure housing spans a part of the entire distance. The roof structure housing 3 has at least one platform 13, and in particular one platform 13, for supporting in use the at least one piece of equipment for providing functionality to the building and / or the equipment and personnel required to install or maintain the at least one piece of equipment for providing functionality to the building. In a non-limiting example, as best shown in Figure 2, the at least one roof structure housing 3 is extendible from a first end 14a of the building to a second end 14b of the building. In a non-limiting example, the at least one roof structure housing is extendible from a first gable end 15a of the building to a second gable end 15b of the building (see Figure 3). In another nonlimiting example, as best shown in Figure 7, the at least one roof structure housing 3 is extendible from a gable end wall 16 of the building to a party wall 17 of the building. In another non-limiting example, as best shown in Figure 8, the one platform 13 is extendible along at least part of the distance from a gable end wall 16 of the building to a party wall 17 of the building. The roof structure housing 3 has one or more walls 5. The at least one of the one or more walls 5 of the roof structure housing 3 are formed from the at least one internal spandrel 5 for forming at least one side of the roof structure housing 3. In a non-limiting example of an embodiment, as best shown in Figure 1, the at least one of the one or more walls 5 of the roof structure housing has insulation 12. The one platform 13 being the at least one floor cassette 13. The one platform 13 has a decking 18 having a continuous solid surface for receiving in use the at least one piece of equipment for providing functionality to the building and / or the equipment and personnel required to install the at least one piece of equipment for providing functionality to the building. The one platform 13 comprises a decking 18 having a continuous solid surface for receiving and / or supporting in use the at least one piece of equipment for providing functionality to the building and / or the equipment and personnel required to install the at least one piece of equipment for providing functionality to the building. The roofing system 1 has a truss receiving means 19. The truss receiving means 19 being at least one bracket member 19. The at least one bracket member 19 is received and secured on, and supported by, the at least one platform 13. At least one of the one or more trusses 9 are received on, and supported by, the at least one bracket member 19. The roofing system 1 has at least two spandrel wall panels 11 a, 11 b, as best shown in Figure 5. At least one of the at least two spandrel wall panels 11 a,11 b close an end of the roof structure and / or roof structure housing. The at least two spandrel wall panels 11a, 11b form at least part of a wall. One of the at least two spandrel wall panels 11a, 11 b being located at the first end 14a of the building and another one of the at least two spandrel wall panels being located at the second end 14b of the building or on a party wall 17. In a non-limiting example, as best shown in Figure 5, at least one of the at least two spandrel wall panels 11a, 11b are formed by two or more spandrel wall panel elements 20, however other configurations fall within the scope of the patent. In a non-limiting example, as best shown in Figure 5, one of the at least two spandrel wall panels 11a, 11b has a barrier 21 for preventing exposure of the at least one piece of equipment for providing functionality to a building to weather conditions, in particular wet weather conditions. In a non-limiting example, as best shown in Figure 6, the roof structure housing 3 further has a partitioning wall 22. In the embodiment shown, the partitioning wall 22 partitions the roof structure housing 3 into two or more spaces 24a, 24b. The at least one piece of equipment for providing functionality to a building is located within one of the two or more spaces 24a, 24b. The barrier 21 for preventing the exposure of the at least one piece of equipment for providing functionality to a building to weather conditions protects the at least one piece of equipment housed within the portion of the roof structure housing wherein the at least one piece of equipment housed within the roof structure housing is located. The at least one platform 13 comprises at least one floor joist 25. The roof structure housing 3 is received on and supported by at least one wall of the building. In a non-limiting example, as best shown in Figure 3, the at least one platform 13 has an aperture 26 for accessing a space above the platform 13. The at least one platform 13 has an aperture 26 for accessing a space within the roof structure housing 3. In a non-limiting example, the one roof structure housing 3 is formed centrally in the roof structure 2. In use, the portion of the assembled roof structure 2 which is not the roof structure housing 3 is usable as storage space in the building for storing other objects not being the at least one piece of equipment for providing functionality to a building. In an embodiment as best shown in Figure 7 and Figure 10, the roof system further has a roof storage platform 27. The roof storage platform 27 is configured to be a storage platform. The method for assembling a roof structure 2 of a building having the following steps of: - assembling at least one roof structure housing 3 configured to form at least a part of a roof structure 2 of a building to form a prefabricated roof structure housing 3 suitable for housing at least one piece of equipment for providing functionality to a building, and - lifting and positioning at least one truss 9 using a crane (not shown) suitable for lifting and positioning, such that the at least one truss 9 is proximal to the at least one roof structure housing 3. Referring to the drawings and now to figures 11 to 17, there is shown a second embodiment of roofing system in accordance with the invention. In the second embodiment, the roof structure housing 41 is extendible from a first wall 42 of the building 44 to a second wall 43 of the building, wherein these first and second walls extend between the gable walls 45. The roof structure housing 41 is extendible along at least part of the distance from a first wall 42 of the building 44 to a second wall 43 of the building, wherein the first 42 and second walls 43 extend between the gable walls 45. The platform 46 may extend from a first end of the building 44 to a second end of the building 44. The platform 46 may extend from a first wall 42 of the building to a second wall 43 of the building, wherein the first and second walls 42, 43 extend between the gable walls 45. However, in the drawings, the platform 46 is extendible along only part of the distance from a first wall 42 of the building to a second wall 43 of the building, wherein the first and second walls 42, 43 extend between the gable walls 45. In the second embodiment, girder trusses 47 are provided extending between the first wall 42 and the second wall 43 of the building, wherein the first and second walls 42, 43 extend between the gable walls 45. The girder trusses 47 extend along the longitudinal sides of the roof structure housing 41 best illustrated in Figs 12 to 14. The girder trusses 47 also extend long the longitudinal sides of the platform 46. The platform 46 is mechanically coupled to each girder truss 47. The platform 46 is mechanically coupled to each girder truss 47 at or about the eaves at one end of the platform 46 and the platform 46 is mechanically coupled to each girder truss 47 away from the eaves at the other end of the platform 46. In the second embodiment, the roof structure housing 41 has four upstanding walls 51 to 54, two 51,52 of which extend parallel to the main plane of the girder trusses 47 and two 53, 54 of which extend perpendicular to the main plane of the girder trusses 47. The walls 51,52 which extend parallel to the main plane of the girder trusses 47 extend from the ridge 55 of the girder truss 47 towards one of the opposing eaves only. The walls 51,52 which extend parallel to the main plane of the girder trusses 47 extend from the ridge 55 of the girder truss 47 towards one of the opposing eaves only a distance sufficient to create a depth to house the at least one piece of equipment 58. One of the walls 53 which extends perpendicular to the main plane of the girder trusses 47 extends along a bisecting plane of the trusses extending from the ridge 55 to the platform 46 substantially perpendicular to both. This wall 53 extending between the ridge 55 and the platform 46 defines a door 58 for entering the roof structure housing 41. The platform 46 extends from this wall 53 with the door 58 towards the other opposite eaves between the girder trusses 47. This part of the platform 46 extending between the wall 53 with the door 58 and the opposite eave has an access hatch 59 for accessing the loft. The roof structure housing 41 has a second closed wall 54 parallel to the wall 53 with the door 58 and being spaced apart from the wall 53 with the door 58 towards the eaves. Untrussed rafters 60 are disposed between the top of the wall 53 with the door 58 and the eaves between the girder trusses 47 bird mouthed over ledger 71. Advantageously, untrussed rafters 60 create a space for occupants to move about within the loft when they enter the loft via the access hatch 59. The untrussed rafters 60 are bird mouthed over the wall plate 61 and ideally over a ledger 62 on the wall plate 61. The untrussed rafters 60 are secured into position at or about their ends using mechanical fastening means such as brackets 63. Mono trusses 64 are mechanically coupled between the outside surface of the closed wall 54 and the adjacent eaves between the girder trusses 47. In the second embodiment, only one roof cassette 65 is required to be disposed between the mono trusses 64 and the ridge 55 of the roof. The skilled person will appreciate that all preferred or optional features of the invention described with reference to only some aspects or embodiments of the invention may be applied to all aspects of the invention. It will be appreciated that optional features applicable to one aspect of the invention can be used in any combination, and in any number. Moreover, they can also be used with any of the other aspects of the invention in any combination and in any number. In relation to the detailed description of the different embodiments of the invention, it will be understood that one or more technical features of one embodiment can be used in combination with one or more technical features of any other embodiment where the transferred use of the one or more technical features would be immediately apparent to a person of ordinary skill in the art to carry out a similar function in a similar way on the other embodiment. In the preceding discussion of the invention, unless stated to the contrary, the disclosure of alternative values for the upper or lower limit of the permitted range of a parameter, coupled with an indication that one of the said values is more highly preferred than the other, is to be construed as an implied statement that each intermediate value of said parameter, lying between the more preferred and the less preferred of said alternatives, is itself preferred to said less preferred value and also to each value lying between said less preferred value and said intermediate value. The features disclosed in the foregoing description or the accompanying drawings, expressed in their specific forms or in terms of a means for performing a disclosed function, or a method or a process of attaining the disclosed result, as appropriate, may separately, or in any combination of such features be utilised for realising the invention in diverse forms thereof as defined in the appended claims.

Claims

1. A roofing system for forming a roof structure, the roofing system comprising a means for forming at least one roof structure housing, wherein the at least one roof structure housing is configured to form at least part of the roof structure, wherein the roof structure housing is suitable for housing at least one piece of equipment for providing functionality to a building, the roofing system having a structural support means for supporting the roofing system between two opposite structural supports of the building.

2. A roofing system as claimed in claim 1, wherein the roof structure housing has means for protecting the at least one piece of equipment from weather conditions whilst the roof structure remains uncovered.

3. A roofing system as claimed in claim 2, wherein the roof structure housing comprises a frame with the protecting means wrapped around at least part of the frame.

4. A roofing system as claimed in claim 2 or claim 3, wherein the roof structure housing comprises a frame with the protecting means wrapped around and enclosing all of or part of the frame.

5. A roofing system as claimed in any preceding claim, wherein the roofing system comprises at least one roof cassette for forming at least part of an upper portion of the roof structure suitable for receiving covering elements thereon and for forming at least part of an upper portion of the roof structure housing suitable for receiving covering elements thereon.

6. A roofing system as claimed in any preceding claim, wherein the roofing system comprises at least two roof cassettes for forming a ridge of a dual-pitched roof.

7. A roofing system as claimed in any preceding claim, wherein the roofing system comprises one or more trusses configured to form part of the roof structure.

8. A roofing system as claimed in claim 7, wherein the roofing system comprises one or more mono trusses configured to form part of the roof structure.

9. A roofing system as claimed in any preceding claim, wherein the structural support means comprises at least one floor cassette or platform which is extendible from a first end of the building to a second end of the building.

10. A roofing system as claimed in claim 9, wherein the at least one floor cassette or platform is extendible from a first gable end of the building to a second gable end of the building.

11. A roofing system as claimed in claim 9 or claim 10, wherein the at least one floor cassette or platform is extendible from a first wall of the building to a second wall of the building.

12. A roofing system as claimed in claim 9 or claim 10, wherein the at least one floor cassette or platform is extendible from a gable end wall of the building to a party wall of the building.

13. A roofing system as claimed in claim 9 or claim 10, wherein the at least one floor cassette or platform is extendible along at least part of the distance from a gable wall of the building to a party wall or another gable wall of the building.

14. A roofing system as claimed in any one of claims 1 to 9, wherein the at least one roof structure housing is extendible from a first wall of the building to a second wall of the building, wherein these first and second walls extend between the gable walls.

15. A roofing system as claimed in any one of claims 1 to 9 or 14, wherein the at least one roof structure housing is extendible along at least part of the distance from a first wall of the building to a second wall of the building, wherein the first and second walls extend between the gable walls.

16. A roofing system as claimed in any one of claims 1 to 9 or 14 or 15, wherein the at least one floor cassette or platform is extendible along at least part of the distance from a first wall of the building to a second wall of the building, wherein the first and second walls extend between the gable walls.

17. A roofing system as claimed in any one of claims 1 to 9 or 14 to 16, wherein girder trusses are provided extending between the first wall and the second wall of the building, wherein the first and second walls extend between the gable walls.

18. A roofing system as claimed in any preceding claim, wherein the roof structure housing comprises cabling for electrical utilities, piping for plumbing utilities and / or adaptions for mechanical utilities.

19. A roofing system as claimed in claim 18, wherein, the cabling, piping and / or adaptations are pre-fitted and installed in a factory environment.

20. A roofing system as claimed in any preceding claim, wherein the roof structure housing / utility cupboard is pre-fitted with batteries in a factory environment suitable for storing electricity generated by solar panels.

21. A roofing system as claimed in any preceding claim, wherein the roof structure housing / utility cupboard is pre-fitted with a PV inverter in a factory environment.

22. A roofing system as claimed in any preceding claim, wherein the roof structure housing / utility cupboard is pre-fitted with cabling for coupling solar panels to the batteries.

23. A roofing system as claimed in any preceding claim, wherein the roof structure housing / utility cupboard has a fire suppression system and / or fire warning system.

24. A roofing system as claimed in any preceding claim, wherein the roof structure housing / utility cupboard is adapted for housing a heat pump.

25. A roofing system as claimed in any preceding claim, wherein the roof structure housing / utility cupboard is finished with a wall panel such as plasterboard, ideally internally for providing fire protection.

Images