Building component

Abstract

The method of manufacturing a building component 1. The building component has a load bearing means, a means 24 for delivering internal moisture towards the outer leaf of a cavity wall and one or more

Description

BUIDLING COMPONENT The present invention relates to building components. In particular, the present invention relates to building components for use over openings. During the construction of a building, it is important to support the wall above an opening such as a door or window opening otherwise the stability and structural integrity of the building may be compromised. Typically, a lintel is used to support the wall above the opening. A lintel is an elongate structure which transfers the weight of the wall directly above the opening to the parts of the wall at either side of the opening. Is it also typical to install a damp proof course to the building during construction, particularly in buildings having a cavity wall with an inner leaf, an outer leaf and a cavity between the inner and outer leaf. The use of a damp proof course prevents the ingress of moisture within the cavity and thereby prevents damp problems developing within the property. One example of a damp proof course are cavity trays which are typically installed above openings in the building such as above doors and windows. It is therefore required to install the damp proof course around a lintel. This can be time consuming and complex and can therefore often result in improper installation of a building component such as a cavity tray and / or the lintel. To avoid any moisture on building components, such as cavity trays and lintels, from cascading over the ends of the building components, stop ends are placed at the lateral ends of the building component. Stop ends may be mechanically fixed to the building component in the factory before being installed on site. Mechanically fixing the stop ends to the building component ensures the integrity of the joint between the stop end and the building component and ensures that the stop end provides a watertight seal. During installation, the stop ends must be fitted in perp joints between adjacent bricks of a wall above the opening and the building component must extend beyond both sides of the opening by an adequate length to enable stability of the building component and the building. Therefore, complexities may arise during installation as the design around an opening in a wall is not always formed perfectly. Often, half brick bonds are required around the opening in the wall and the building component must be moved laterally to one side more than the other to ensure that the building component is properly supported and to fit the stop ends within a perp joint. If moving the building component does not allow the building component to rest an adequate distance away from both sides of the opening, then a new building component must be purchased and / or fabricated. With multiple openings in each building, this can be costly, time consuming and frustrating for onsite operators and consumers. Furthermore, this can result in stop ends being damaged or forced into position such that the integrity of the stop ends is compromised. It is therefore an object of the present invention to overcome the above-mentioned problems. It is also an object of the present invention to improve the ease of installation of building components above openings. According to a first aspect of the invention there is provided a building component comprising a load bearing means, a means for delivering internal moisture towards the outer leaf of a cavity wall and one or more mechanically fixed stop ends. Preferably, the one or more mechanically fixed stop ends are mechanically fixed to the load bearing means. Preferably, the building component is locatable above an opening in a building construction such as a window opening. Preferably, the building component is configurable above an opening in a building construction such as a window opening. Preferably, the load bearing means is configurable to distribute the weight of the wall above an opening to parts of the wall at each side of the opening. Advantageously, this prevents the opening from collapsing and thereby improves the structural integrity of the building. Preferably, the load bearing means comprises a base for supporting masonry, such as bricks, thereon. Preferably, the building component is sized to be positioned upon all / multiple reveals and / or brickwork bonds of an opening in a wall so that, in use, the one or more mechanically fixed stop ends are alignable with a perpendicular joint and so that the building component is supportable on each side of the opening by at least a minimum bearing length or recommended bearing length after the building component has been moved laterally within a range defined by a compensating length, so that the one or more mechanically fixed stop ends are alignable with a perpendicular joint. Advantageously, multiple building components will not be required to accommodate different reveals and / or brickwork bonds immediately below the building component. This means that the building components can be manufactured as standard stock components. Further advantageously, lateral movement of the building component will not compromise the integrity of the building component and / or the one or more mechanically fixed stop ends. Further advantageously, this means that during installation, the building component can be moved to the left or right to align the one or more stop ends with a perp joint and the building component will still be supported on each side of the opening by at least the minimum bearing length / recommended bearing length to ensure the structural integrity of the building component and / or building is not compromised, even after the building component has been moved to the left or right of the opening. Further advantageously, this means that the bricks or masonry will not need to be cut and / or modified so that the stop ends are in alignment with a perp joint. By alignable with a perp joint we mean to allow the mechanically fixed stop end to align within a perpendicular mortar joint in the masonry / brick course directly above and / or over the building component and / or opening in the wall. Preferably, the building component is sized based on the dimensions of the opening over which it is to be placed plus an overall minimum bearing length plus a compensating length. By at least a minimum bearing length we mean by a length that enables stability of the building component above the opening and / or by a length that enables sufficient weight transfer of the wall above the opening to the parts of the wall at each side of the opening and / or by the length that is recommended to be supported on each side of the opening. Preferably, the minimum bearing length / recommended bearing length is predetermined in part by the weight of the load that is to be supported on or above the building component. Preferably, the minimum bearing length is between 100 mm and 300 mm on each side of the opening. Ideally, the minimum bearing length is between 100 mm and 300 mm in each side of the opening. Ideally, the overall minimum bearing length is between 200 mm and 600 mm. By overall minimum bearing length, we mean the minimum overall length of the building component that must be supported by masonry disposed laterally of the opening. Therefore, if the minimum bearing length that must be supported on each side of the opening is 150 mm then the overall minimum bearing length is 300 mm. Preferably, the minimum bearing length is 100 mm. Preferably, the minimum bearing length is 150 mm. Preferably, the minimum bearing length is 300 mm. Preferably, the compensating length is at least 32 mm. Preferably, the compensating length is at least 65 mm. Preferably, the compensating length is at least 107 mm. Preferably, the compensating length is at least 215 mm. Preferably, the compensating length is at least 112 mm. Preferably, the compensating length is at least 225 mm. Preferably, the compensating length is between 32 mm and 225 mm. By compensating length, we mean the additional length that is required to be applied to the building component to allow the building component to still be supported on each side of the opening by at least the minimum bearing length and / or recommended bearing length after the building component has been moved left or right to align the one or more stop ends with a perp joint. Advantageously, the building component can be used for openings having the same dimensions regardless of the brickwork bond upon which the building component is to be supported. Further advantageously, the type of building component required can be specified based on the dimensions of the opening, without needing to specify the brickwork bond upon which the building component will be supported, saving time and costs. This is in comparison to a building component being custom built based on the brickwork bonds immediately below the building component which may differ for each opening of a building construction. This is further in comparison to building components with mechanically fixed stop ends where the building component is fabricated as standard, without taking account of the position of the mechanically fixed stop ends and / or the brickwork bond below the building component and / or the dimensions of the opening such that, in use, the mechanically fixed stop ends do not align with perp joints of a wall or such that the minimum bearing length and / or recommended bearing length of the building component is not supported on each side of the opening. Preferably, the compensating length corresponds to the maximum distance over which the building component would be required to move, to the left or right of the opening, to align the one or more stop ends with a perp joint. Preferably, the compensating length corresponds to up to the full horizontal measurement of a surface of one of the masonry components / bricks that will form the external surface of the outer leaf, that are to be installed above the building component and / or on the load bearing means of the building component and / or base of the building component / load bearing means. Preferably, the compensating length corresponds to up to half of the full horizontal measurement of a surface of one of the masonry components / bricks that will form the external surface of the outer leaf, that are to be installed above the building component and / or on the load bearing means of the building component and / or base of the building component / load bearing means. Advantageously, this means that the building component will still be supported on both sides of the opening by the required minimum bearing length and / or recommended bearing length after the component has been moved left or right to align the one or more stop ends with a perp joint. Further advantageously, this means that the building component can be installed over any reveal and / or brick work bond of an opening. Further advantageously, this means that the bricks or masonry will not need to be cut and / or modified so that the stop ends are in alignment with a perp joint. Further advantageously, this means that only the dimensions of the opening and of the brickwork bond that is to be installed above the load bearing means of the building component will need to be considered when purchasing and / or manufacturing a building component. Further advantageously, this means that multiple building components having the same dimensions can be manufactured and / or purchased for a building having multiple openings of the same dimension without needing to predict or specify the reveal and / or brickwork bond which the building component will be positioned on. Preferably, the building component is sized such that the entire length of the building component is between 232 mm and 825 mm longer than an opening above which the building component is to be supported. By longer than the opening we mean by more than the measurement of the opening from left to right. Preferably, the building component is sized such that the entire length of the building component is between 232.5 mm and 632.5 mm longer than the opening. Preferably, the building component is sized such that the entire length of the building component is between 265 mm and 665 mm longer than the opening. Preferably, the building component is sized such that the entire length of the building component is between 307.5 and 707.5 mm longer than the opening. Preferably, the building component is sized such that the entire length of the building component is between 415 mm and 815 mm longer than the opening. Preferably, the building component is sized such that the entire length of the building component is between 312.5 and 612.5 mm longer than the opening. Preferably, the building component is sized such that the entire length of the building component is between 425 and 825 mm longer than the opening. Preferably, if brick work bond above the building component is a soldier bond, then the entire length of the building component would be between 232 and 665 mm longer than the opening, depending on the overall compensating length. Ideally, if the brick work bond above the building component is a stretcher bond then the entire length of the building component would be between 307 and 825 mm longer than the opening, depending on the overall compensating length. Preferably, the building component is sized such that the entire length of the building component is between 413 mm and 525 mm longer than an opening above which it is to be installed. Preferably, the building component is sized such that the entire length of the building component is approximately 413 mm longer than the length of the opening above which it is to be installed. Preferably, the building component is sized such that the entire length of the building component is approximately 525 mm longer than the length of the opening above which it is to be installed. Preferably, the building component is configurable to be positioned upon all / multiple reveals and / or brickwork bonds of an opening in a wall so that the building component is supportable on each side of the opening and so that the mechanically fixed stop end is always alignable with a perpendicular joint. Preferably, the building component comprises a plurality of mechanically fixed stop ends. Preferably, the building component is elongate having two longitudinal sides and two lateral sides extending between the longitudinal sides. Ideally, the building component comprises a left end side and a right end side. Ideally, the building component is sized to be positioned such that, in use, the left end side extends at least 100 mm, 150 mm or 300 mm beyond the left side of the opening right end side extends at least 100 mm, 150 mm or 300 mm beyond the right side of the opening. Ideally, the building component comprises a mechanically fixed stop end located on a left end portion of the building component. Ideally, the building component comprises a mechanically fixed stop end located on a right end portion of the building component. Advantageously, this prevents moisture cascading over the end sides of the building component into the cavity of a cavity wall. Preferably, the one or more stop ends are located inwardly from the lateral edges of the building component. By inwardly from the lateral edges, we mean that the one or more stop ends are located near a lateral edge but not at the very edge of the building component. Advantageously, this enables flexibility in the position of the building component i.e., it enables movement of the building component laterally without resulting in the building component being supported on each side of the opening by less than the minimum bearing length. Further advantageously, this reduces the amount of material required to manufacture the building component. This is in comparison to building components having mechanically fixed stop ends located at the very edge of the building component whereby, to allow for lateral movement and to maintain the minimum / recommended bearing length, the distance between the stop ends would need to be substantially increased in increments equal to the horizontal measurement of the brick that is to be positioned on the load bearing means of the building component, which would require larger sheets of material and would therefore be more expensive and would result in increased waste. Preferably, the one or more stop ends are located inward from the lateral edge of the building component by at least 37.5 mm. Preferably, the one or more stop ends are located inward from the relevant lateral edge of the building component by approximately 42.5 mm, 100 mm or 150 mm, depending on the bond of the bricks to be placed on the load bearing means of the building component. For example, where the mechanically fixed stop end is to sit flush with the reveal of the opening below the building component, the one or more mechanically fixed stop ends will sit at least a distance equal to the minimum bearing length / recommended bearing length away from the edge of the building component. This may occur where the bricks placed on the load bearing means of the building component are to be arranged in a soldier bond. Preferably, the mechanically fixed stop end located on a left end portion of the building component is located at least 37.5 mm to 300 mm inward from the left edge of the building component. Preferably, the mechanically fixed stop end located on a right end portion of the building component is located at least 37.5 mm to 300 mm inward from the right edge of the building component. Preferably, the one or more mechanically fixed stop ends are locatable between masonry on a wall. Preferably, the one or more mechanically fixed stop ends are locatable between masonry on the outer leaf of a cavity wall such as between adjacent bricks of the wall. Ideally, the mechanically fixed stop end is locatable in a perp joint between masonry such as adjacent bricks of a wall. Preferably, the building component is configurable to be positioned such that, in use, the mechanically fixed stop ends are always in alignment with a perp joint in the brickwork course immediately above the building component. Ideally, the mechanically fixed stop ends are fixed to the building component at a position wherein the distance between adjacent mechanically fixed stop ends corresponds to the length of a predetermined number of bricks to be positioned on the load bearing means of the building component between adjacent mechanically fixed stop ends. Preferably, the one or more mechanically fixed stop ends are impervious to moisture. Preferably, the one or more mechanically fixed stop ends are non-combustible. Advantageously, in the event of a fire the stop ends will not burn. Further advantageously, in the event of a fire the stop ends will provide no contribution to the fire and an insignificant release of smoke, droplets or other particles. Ideally, the one or more mechanically fixed stop ends are formed from a rigid material. Preferably, the one or more mechanically fixed stop ends are formed from steel. Ideally, the one or more mechanically fixed stop ends are formed from stainless steel, galvanized steel and / or any other suitable material. Ideally, where the building component is formed from galvanized steel, it is hot dipped galvanized steel of 100-micron coating. Alternatively, the one more mechanically fixed stop ends may be formed from any other, non-pervious, rigid material. Preferably, the one or more mechanically fixed stop ends are configurable to prevent moisture cascading over the end of the building component. Preferably, the one or more mechanically fixed stop ends are configurable to maintain internal moisture on the building component. Preferably, the one or more mechanically fixed stop ends are configurable to direct moisture on the building component so that the moisture can be drained to the external surface of the outer leaf of the cavity wall via an opening or the means for draining internal moisture to the external surface of a cavity wall. Preferably, the one or more mechanically fixed stop ends are mechanically fixed to the building component via riveting, welding, spot welding, tack welding, adhering, gluing or by any other suitable means. Alternatively, the mechanically fixed stop ends may be formed as a folded portion of the building component. Advantageously, this prevents moisture making its way underneath the corner of the building component and backward into a window / door below the building component. Preferably, the mechanically fixed stop ends are mechanically prefixed to the building component in a factory environment. Advantageously, this mitigates against the risk of poor workmanship on site due to weather conditions and / or lack of technical equipment etc. This ensures integrity of the mechanical joint to ensure that the stop end provides a water tight seal. Preferably, the building component is sized to be positioned upon all / multiple reveals and / or brickwork bonds of an opening above which the building component is to be supported. Ideally, the length of the building component is sized to be positioned upon all / multiple reveals and / or brickwork bonds of an opening above which the building component is to be supported. Preferably, the building component is sized to ensure that an adequate length of the building component is supported on each side of the opening. Preferably, the length of the building component is sized depending on the length of the opening above which the building component is to be supported. Advantageously, the building component can be used for openings having the same dimensions regardless of the brickwork bonds surrounding the openings. Further advantageously, the type of building component required can be specified based on the dimensions of the opening, without needing to specify the brickwork bond upon which the building component will be supported, saving time and costs. This is in comparison to building components custom built based on the brickwork bonds immediately below the building component which may differ for each opening of a building construction. This is further in comparison to building components with mechanically fixed stop ends where the building components are fabricated as standard, without taking account of the position of the mechanically fixed stop ends and / or the brickwork bond below the building component and / or the dimensions of the opening such that, in use, the mechanically fixed stop ends do not align with perp joints of a wall or such that an adequate length of the building component is not supported on each side of the opening. Ideally, the building component is configurable to be positioned such that, in use, the left end side extends at least 100 mm, 150 mm or 300 mm beyond the left side of the opening. Ideally, the building component is configurable to be positioned such that, in use, the right end side extends at least 100 mm, 150 mm or 300 mm beyond the right side of the opening. Ideally, the building component is configurable to be positioned such that, in use, at least 100 mm, 150 mm or 300 mm of the left end side of the building component is supported on brickwork that is laterally disposed to the left side of the opening. Ideally, the building component is configurable to be positioned such that, in use, at least 100 mm, 150 mm or 300 mm of the right end side of the building component is supported on brickwork that is laterally disposed to the right side of the opening. Preferably, the building component is a structural support. Preferably, the building component is a single leaf lintel, a double leaf lintel, a cavity tray, any other building component required to be positioned above an opening in a wall and / or a combination thereof. Preferably, the building component is configurable to extend into the cavity of a cavity wall. Preferably, the building component is configurable to extend into the cavity from the outer leaf of a cavity wall. Preferably, the building component is not fixed to the inner leaf of a cavity wall. Ideally, the building component is not supported by the inner leaf of a cavity wall. Preferably, in use, the building component does not contact the inner leaf of the cavity wall. Ideally, the building component is only fixed between masonry of the outer leaf of the cavity wall at both sides of the opening in the building. Preferably, the building component is only supported by the outer leaf of the cavity wall. Ideally, the building component does not engage the inner leaf of the cavity wall. Advantageously, this means that the building component will not form a cold bridge between the outer leaf and the inner leaf of the cavity wall. Preferably, the building component is self-supporting within the cavity. By self-supporting, we mean that any part of the building component, in use, extending into the cavity is not supported by another component, i.e., any part of the building component extending into the cavity of a cavity wall supports itself and does not fall down, bend or flex downwards within the cavity without the requirement of being fixed to another component such as the inner leaf of the cavity wall. Advantageously, this mitigates the requirement of mechanically fixing the building component to the inner leaf of a cavity wall and thereby reduces the amount of time and material used during the installation of the building component. Further advantageously, this allows the profiling of insulation and positioning of the overlap of a cavity facing membrane to be completed independently, once the building component is securely built into the brickwork. Preferably, the building component is formed from a rigid material. Advantageously, this mitigates against the building component from bending down inside the cavity. Preferably, the building component is formed from a non-combustible material. Advantageously, in the event of a fire the building component will not burn. Further advantageously, in the event of a fire the building component will provide no contribution to the fire and an insignificant release of smoke, droplets or other particles. Preferably, the building component is formed from stainless steel, galvanized steel and / or any other suitable material. Ideally, where the building component is formed from galvanized steel, it is hot dipped galvanized steel of 100-micron coating. Preferably, the building component is a one-piece building component. Ideally, the building component is configurable to distribute the weight of the wall above an opening to parts of the wall at either side of the opening. Advantageously, this prevents the opening from collapsing and thereby improves the structural integrity of the building. Preferably, the building component is elongate. Preferably, the building component comprises a base for supporting masonry thereon. Preferably, the building component comprises an upstand. Preferably, the upstand is configurable to provide rigidity and strength to the building component. Advantageously, this prevents warping of the base of the building component. Preferably, the base is substantially rectangular having two longitudinal sides and two end sides extending between the longitudinal sides. Ideally, at least part of the end sides are locatable between courses of masonry. Preferably, the end sides are entirely locatable between courses of masonry. Ideally, at least part of the longitudinal sides are locatable between courses of masonry. Ideally, the building component comprises an upstand. Preferably, the upstand extends from the base. Preferably, the upstand extends from the base at an angle between 45° and 80°. Preferably, the upstand extends from the base at a 90° angle. Preferably, the upstand extends from one of the longitudinal sides of the base. Ideally, the upstand is co-extensive with the base. Preferably, the upstand is substantially rectangular in shape comprising two longitudinal sides and two end sides extending between the longitudinal sides. Preferably, the base and / or upstand of the building component are load bearing means. Ideally, the base and / or upstand of the building component are a lintel. Preferably, the building component comprises a means for delivering internal moisture towards the outer leaf of a cavity wall. Preferably, the means for delivering internal moisture towards the outer leaf of a cavity wall extends from the base or upstand of the building component. Preferably, the means for delivering internal moisture towards the outer leaf of a cavity wall is configurable to deliver moisture to the outer leaf and / or to the external surface of the outer leaf Preferably, the building component is formed from a water impervious material. Advantageously, this prevents moisture on the building component passing through the building component to the cavity below. Preferably, the building component is configurable so as not to create condensation in or around the cavity wall. Preferably, the means for delivering internal moisture towards the outer leaf of a cavity wall extends into the cavity of a cavity wall. Preferably, the means for delivering internal moisture towards the outer leaf of a cavity wall extends from the outer leaf towards the inner leaf of a cavity wall. Preferably, the means for delivering internal moisture towards the outer leaf of a cavity wall is impervious to moisture. Preferably, the means for delivering internal moisture towards the outer leaf of a cavity wall is formed from a separate piece of material than the base and / or upstand of the building component. Ideally, the means for delivering internal moisture towards the outer leaf of a cavity wall is formed from a thinner piece of material than the base and / or upstand of the building component. Advantageously, this reduces the cost of manufacture of the building component. This is in comparison to the means for delivering internal moisture towards the outer leaf of a cavity wall being formed from the same piece of material as the base and / or upstand which, in some embodiments, may be load bearing. Alternatively, the means for delivering internal moisture towards the outer leaf of a cavity wall is formed from the same material and / or same piece of material as the base and / or upstand of the building component. Preferably, the means for delivering internal moisture towards the outer leaf of a cavity wall is coupled to the base and / or upstand. Preferably, the means for delivering internal moisture towards the outer leaf of a cavity wall is mechanically coupled to the base and / or upstand via riveting, welding, spot welding, tack welding, adhering, gluing or by any other suitable means. Advantageously, this ensures a water tight seal between the base and / or upstand and the means for delivering internal moisture towards the outer leaf of a cavity wall. Thereby this prevents moisture making its way underneath the means for delivering internal moisture towards the outer leaf of a cavity wall. Ideally, the means for delivering internal moisture towards the outer leaf of a cavity wall is coupled to one of the longitudinal sides of the base and / or upstand. Ideally, the means for delivering internal moisture towards the outer leaf of a cavity wall is coupled to the upstand at a longitudinal side of the upstand opposite to the longitudinal side of the upstand extending from the base. Preferably, the means for delivering internal moisture towards the outer leaf of a cavity wall extends from the base and / or upstand. Ideally, the means for delivering internal moisture towards the outer leaf of a cavity wall extends from one of the longitudinal sides of the base and / or upstand. Ideally, the means for delivering internal moisture towards the outer leaf of a cavity wall extends from the upstand at a longitudinal side of the upstand opposite to the longitudinal side of the upstand extending from the base. Preferably, the means for delivering internal moisture towards the outer leaf of a cavity wall extends from the base and / or upstand at an angle between 1° and 90°. Ideally, the means for delivering internal moisture towards the outer leaf of a cavity wall extends from the base and / or upstand at an angle between 20° and 75°. Ideally, the means for delivering internal moisture towards the outer leaf of a cavity wall extends from the base and / or upstand at an incline. Preferably, the means for delivering internal moisture towards the outer leaf of a cavity wall slopes upwardly from the base and / or upstand. Preferably, the means for delivering internal moisture towards the outer leaf of a cavity wall comprises a sloping portion. Ideally, the sloping portion extends from the base and / or upstand. Ideally, the sloping portion extends upwardly from the base and / or upstand towards the inner leaf of the cavity wall. Advantageously, this provides a downward flow path for moisture within the cavity towards the outer leaf of the cavity wall and thereby prevents the ingress of moisture within the cavity. Preferably, the means for delivering internal moisture towards an outer leaf of the cavity wall is a cavity tray. Preferably, the building component comprises a means for draining internal moisture to the external surface of a cavity wall such as a weep. Preferably, the means for draining internal moisture to the external surface of a cavity wall is locatable on an upper surface of the building component. Preferably, the means for draining internal moisture to the external surface of a cavity wall extends upwardly from the upper surface of the building component. Ideally, the means for draining internal moisture to the external surface of a cavity wall extends vertically upwardly from the upper surface of the building component. Preferably, the means for draining internal moisture to the external surface of a cavity wall is configurable to extend along the upper surface of the building component from the base of the building component to at least a part of the means for delivering internal moisture towards the outer leaf of a cavity wall. Preferably, the means for draining internal moisture to the external surface of a cavity wall is configurable to extend along the upper surface of the building component from the base of the building component towards the end of the means for delivering internal moisture towards the outer leaf of a cavity wall furthest from the base of the building component. Preferably, the means for draining internal moisture to the external surface of a cavity wall is substantially an inverted U-shape comprising two upstands and a canopy extending between them. Advantageously, the canopy prevents mortar or debris falling into and clogging the hollow flow path between the upstands of the means for draining internal moisture towards the external surface of a cavity wall. Preferably, the means for draining internal moisture to the external surface of a cavity wall is hollow. Ideally, means for draining internal moisture to the external surface of a cavity wall comprises a hollow channel between the upstands. Advantageously, this enables moisture to flow through the means for draining internal moisture to the external surface of a cavity wall. Preferably, at least a portion of the means for draining internal moisture to the external surface of a cavity wall is locatable between masonry on the outer leaf of a cavity wall. Preferably, at least a portion of the means for draining internal moisture to the external surface of a cavity wall is locatable between adjacent bricks of a wall. Ideally, at least a portion of the means for draining internal moisture to the external surface of a cavity wall is locatable in the perp joint between masonry of a wall. Advantageously, this enables moisture to bypass the masonry / bricks. This is in comparison to the moisture being absorbed by the masonry. Preferably, the means for draining internal moisture to the external surface of a cavity wall comprises an inlet to allow moisture to flow into the hollow channel between the upstands. Ideally, the means for draining internal moisture to the external surface of a cavity wall comprises a plurality of inlets to allow moisture to flow into the hollow channel between the upstands. Preferably, the plurality of inlets are locatable along the length of the upstands. Preferably, the means for draining internal moisture to the external surface of a cavity wall comprises an outlet to allow moisture to flow out of the hollow channel. Ideally, the outlet is flush with the external surface of the outer leaf of the cavity wall. Preferably, the means for draining internal moisture to the external surface of a cavity wall is non-combustible. Preferably, the means for draining internal moisture to the external surface of a cavity wall is formed from steel. Preferably, the means for draining internal moisture to the external surface of a cavity wall is formed from stainless steel. Ideally, the means for draining internal moisture to the external surface of a cavity wall is a weep. Preferably, the upper surface of the building component continues beneath the means for draining internal moisture to the external surface of a cavity wall. Preferably, the base of the building component continues beneath the means for draining internal moisture to the external surface of a cavity wall. Advantageously, this prevents leakage of the moisture flowing through the means for draining internal moisture to the external surface of a cavity wall into the masonry or building elements below the building component and back into the cavity. Alternatively and / or in addition, the means for draining internal moisture to the external surface of a cavity wall extends horizontally across the base of the building component. Preferably, the mechanically fixed stop end comprises a base. Preferably, the mechanically stop end comprises an upstand which extends upright from the base of the mechanically fixed stop end. Preferably, the mechanically fixed stop end comprises an engagement portion which is configurable to engage with and / or fix onto a surface of the building component. Preferably, the engagement portion of the mechanically fixed stop end is configurable to form a watertight seal with a surface of a building component with which the engagement portion engages. Ideally, the engagement portion of the mechanically fixed stop end is configurable to form a watertight seal at the joint of the stop end with a surface of the building component with which the engagement portion engages. Ideally, at least part of the engagement portion is locatable on a surface of the mechanically fixed stop end that engages with a surface of the building component, in use. Preferably, each surface of the mechanically fixed stop end that engages with a surface of the building component comprises an engagement portion. Advantageously, this prevents a gap forming between the stop end and the building component. Thereby, this prevents moisture on the surface of the building component from by passing the stop end through a gap between the stop end and the building component. Ideally, at least part of the engagement portion is locatable on the base of the mechanically fixed stop end. Ideally, at least part of the engagement portion is locatable on a surface of the base of the mechanically fixed stop end that engages with the base of the building component. Ideally, at least part of the engagement portion is locatable on an underside of the base of the mechanically fixed stop end. Preferably, at least part of the engagement portion is locatable on the upstand of the mechanically fixed stop end. Ideally, at least part of the engagement portion is locatable on a surface of the upstand that engages with the upstand of the building component, in use. Ideally, at least part of the engagement portion is locatable on a surface of the upstand that engages with the upstand of the building component such as the trailing end of the upstand of the mechanically fixed stop end. Preferably, in one embodiment, the base of the mechanically fixed stop end extends perpendicularly from the main planar surface of the upstand of the mechanically fixed stop end. Preferably, in one embodiment, the trailing end of the mechanically fixed stop end extends perpendicularly from the main planar surface of the upstand. Preferably, in one embodiment, at least part of the engagement portion extends perpendicularly from the main planar surface of the mechanically fixed stop end. Preferably, in one embodiment, at least part of the engagement portion extends perpendicularly from the main planar surface of the upstand of the mechanically fixed stop end. Advantageously, this increases the surface area of the engagement portion. Thereby, this increases the integrity of the joint of the mechanically fixed stop end on the surface of the building component to ensure that the mechanically fixed stop end provides a watertight seal. Preferably, the engagement portion extends across at least part of the width of the mechanically fixed stop end. Preferably, the engagement portion extends across the entire length of the mechanically fixed stop end. By length, we mean the measurement of the stop end from the leading edge of the stop end locatable adjacent to the front surface of the outer leaf of a cavity wall to the trailing edge of the stop end locatable adjacent to or beyond the back surface of the outer leaf of a cavity wall and / or opposing to the leading edge. Preferably, the engagement portion extends across at least part of the height of the mechanically fixed stop end. Preferably, the engagement portion extends the entire height of the mechanically stop end. Preferably, the engagement portion extends at least partially across the width of the mechanically fixed stop end. Ideally, the engagement portion extends entirely across the width of the mechanically fixed stop end. By length, we mean the measurement between the lateral ends and / or sides of the stop end and / or of the base and / or of the upstand. Preferably, the trailing edge of the mechanically fixed stop end is fixed to the upstand and / or sloping portion of the building component. Ideally, where the building component comprises an upstand, the trailing edge of the mechanically fixed stop end extends vertically upright from the base of the mechanically fixed stop end to correspond to the upstand of the building component. Alternatively, where the sloping portion of the building component extends from the base of the building component, the trailing edge of the mechanically fixed stop end comprises a corresponding sloping portion to engage with the sloping portion of the building component and form a watertight seal therebetween. Preferably, where the sloping portion of the building component extends from the base of the building component, the trailing edge of mechanically fixed stop end slopes upwardly from the base of the mechanically fixed stop end at an angle corresponding to the sloping portion of the building component to engage with the sloping portion of the building component and form a watertight seal therebetween. Preferably, the mechanically fixed stop ends are mechanically fixed to the base and / or to the upstand and / or to the sloping portion of the building component. Preferably, the base of the mechanically fixed stop ends are mechanically fixed to the base of the building component. Preferably, the upstand of the mechanically fixed stop ends are mechanically fixed to the upstand and / or sloping portion of the building component. Ideally, the trailing edge of the mechanically fixed stop ends are mechanically fixed to the upstand and / or sloping portion of the building component. Preferably, in one embodiment, the mechanically fixed stop end comprises a gasket which is configurable to seal a gap between the mechanically fixed stop end and the building component. Preferably, the mechanically fixed stop end comprises one or more gaskets such as mastic sealant, sealing tape and / or any other suitable mechanical seal. Preferably, the gasket is configurable to adhere to a surface of the mechanically fixed stop end. Ideally, the gasket is locatable on the engagement portion of the mechanically fixed stop end. Alternatively, a portion of the gasket forms the engagement portion of the mechanically fixed stop end. Advantageously, locating on the gasket on the engagement portion and / or forming the engagement portion of a gasket means that a seal will be formed between the mechanically fixed stop end and the building component. This thereby prevents a gap forming between the two, through which moisture might ingress into. Preferably, the gasket is configurable to extend below the underside of the base of the mechanically fixed stop end. Preferably, the gasket is configurable to extend behind the back side of the mechanically fixed stop end. Preferably, the gasket is configurable to extend behind the trailing end of the mechanically fixed stop end. Ideally, the gasket is compressible. Advantageously, this means that the gasket will engage with and / or abut against a surface of the building component and will compress under the weight of the stop end and / or under the weight of a fitting means and / or under the weight of the masonry above to form a seal between the stop end and the surface of the building component. Preferably, the gasket is configurable to prevent the lateral movement of moisture across a surface of the building component and / or over the end of the building component. Preferably, the mechanically fixed stop end extends partially or entirely over the width of the building component. By width we mean in the direction from the leading edge of the building component locatable adjacent to the front surface of the outer leaf of the cavity wall in a direction to the trailing edge of the building component locatable adjacent to the front surface of the inner leaf of the cavity wall. Alternatively, the stop end comprises an interlocking means to interlock with a surface of the building component. Preferably, the interlocking means is configurable to fix the stop end onto a surface of the building component to provide a water tight seal between the stop end and the building component. Preferably, the interlocking means comprises male and female interlocking means. Preferably, the stop end is mechanically fixed to a surface of the building component via male and female interlocking means. Preferably, the mechanically fixed stop end is configurable to fix to the base, upstand and / or means for delivering internal moisture towards the outer leaf of a cavity wall. According to a second aspect of the invention, there is provided a method of manufacturing a building component according to a first aspect of the invention, wherein the method comprises the step of obtaining the dimensions of the opening above which the building component is to be placed and specifying a bearing length and specifying a compensating length, the method further comprising the step of sizing the building component based on the dimensions of the opening plus the bearing length plus the compensating length. Advantageously, this means that in use, lateral movement of the building component to align the one or more mechanically fixed stop ends with a perpendicular joint will not compromise the integrity of the building and / or building component due to less than the specified bearing length being supported on each side of the opening. Further advantageously, this means that the one or more mechanically fixed stop ends will still be alignable with a perpendicular joint while the building component is supported by at least the specified bearing length on each side of the opening without needing to cut bricks and / or without the stop ends being damaged or forced into alignment. Further advantageously, this means that multiple building components having different dimensions are not required to accommodate openings of the same dimension but having a different reveal / brick work bond upon which the building component is to be positioned. This means that building components can be manufactured as standard stock components based only on the opening dimensions and / or the brick work bond of the bricks that are to be positioned on the load bearing means of the building components. By obtaining we also mean specifying, determining and vice versa. Preferably, the bearing length is at least the minimum bearing length or recommended bearing length. Preferably, the bearing length is the overall bearing length that is to be added to ensure that the building component is supported on each side of the opening by at least the minimum and / or recommended bearing length. Preferably, the method comprising the step of sizing the building component such that, in use, the building component is still supported on each side of an opening, by at least the bearing length, after the building component has been moved left or right to ensure that the one or more stop ends are alignable with a perp joint. Advantageously, this means that during installation, the building component can moved to the left or right to align the one or more stop ends with a perp joint and the component will still be supported on each side of the opening by at least the minimum length required / recommended bearing length to ensure the structural integrity of the building component and / or building is not compromised, even after the building component has been moved to the left or right of the opening. Preferably, the method comprising the step of sizing the building component such that the length of the building component corresponds to the dimensions of an opening over which it is to be installed plus the minimum bearing length and / or recommended bearing length to be supported on each side of the opening plus a compensating length. Preferably, the method comprising the step of sizing the compensating length to correspond to the maximum distance over which the building component would be required to move, to the left or right of the opening, to align the one or more stop ends with a perp joint. Preferably, the method comprising the step of sizing the compensating length to correspond to the at least half of the horizontal measurement of a surface of one of the masonry components / bricks that will form the external surface of the outer leaf, that are to be positioned on the load bearing means of the building component. Preferably, the method comprising the step of sizing the compensating length to correspond to the full horizontal measurement of a surface of one of the masonry components / bricks that will form the external surface of the outer leaf, that are to be positioned on the load bearing means of the building component. Advantageously, this means that, in use, the building component will still be supported on both sides of the opening by the required minimum bearing length and / or recommended bearing length after the building component has been moved left or right to align the one or more stop ends with a perp joint. Further advantageously, this means that the building component can be installed over any reveal and / or brick work bond, upon which the building component is to be positioned. Further advantageously, this means that the bricks or masonry will not need to be cut and / or modified so that the stop ends are in alignment with a perp joint. Further advantageously, this means that only the dimensions of the opening and / or of the brickwork bond that is to be placed above the load bearing means of the building component will need to be considered when purchasing and / or manufacturing a building component. Further advantageously, this means that multiple building component having the same dimensions can be manufactured and / or purchased for a building having multiple openings of the same dimension without needing to predict or specify the reveal and / or brickwork bond upon which each of the building component will be positioned, for each opening of the building. Preferably, the method comprising the step of specifying a compensating length between 32.5 mm and 225 mm depending on the brick work bond of the bricks that are to be placed on the load bearing means of the building component. Preferably, the method comprising the step of sizing the building component such that the entire length of the building component is between 232 mm and 825 mm longer than an opening above which the building component is to be supported. By longer than the opening we mean by more than the measurement of the opening from left to right. Preferably, the method comprising the step of sizing the building component such that the enitre length of the building component is between 232.5 mm and 632.5 mm longer than the opening above which it is to be installed. Preferably, the method comprising the step of sizing the building component such that the entire length of the building component is between 265 mm and 665 mm longer than the opening above which it is to be installed. Preferably, the method comprising the step of sizing the building component such that the entire length of the building component is between 307.5 and 707.5 mm longer than the opening. Preferably, the method comprising the step of sizing the building component such that the entire length of the building component is between 415 mm and 815 mm longer than the opening. Preferably, the method comprising the step of sizing the building component such that the entire length of the building component is between 312.5 and 612.5 mm longer than the opening. Preferably, the method comprising the step of sizing the building component such that the entire length of the building component is between 425 and 825 mm longer than the opening. Preferably, if brick work bond above the building component is a soldier bond, then the method comprising the step of sizing the building component such that the entire length of the building component would be between 232 and 665 mm longer than the opening, depending on the overall compensating length. Ideally, if the brick work bond above the building component is a stretcher bond then the method comprising the step of sizing the building component such that the entire length of the building component would be between 307 and 825 mm longer than the opening, depending on the overall compensating length. Preferably, the method comprising the step of sizing the building component such that the entire length of the building component is between 413 mm and 525 mm longer than an opening above which it is to be installed. Preferably, the method comprising the step of sizing the building component such that the entire length of the building component is approximately 413 mm longer than the length of the opening above which it is to be installed. Preferably, the method comprising the step of sizing the building component such that the entire length of the building component is approximately 525 mm longer than the length of the opening above which it is to be installed. Preferably, the method comprising the step of forming the building component from steel, stainless steel or mild steel hot dipped in 100-micron galvanized coating and / or any other suitable material. Preferably, the method comprising the step of forming the building component via. cutting, roll-forming, pressing and / or any other suitable means. Preferably, the method comprising the step of specifying a location on the building component and / or load bearing means for the one or more stop ends to be mechanically fixed. Preferably, the method comprising the step of mechanically fixing one or more stop ends to the building component and / or load bearing means of the building component via. riveting, welding, spot welding, tack welding, adhering, gluing and / or by any other suitable means. Preferably, the method comprising the step of fixing the one or more stop ends to a portion of the building component that is proximal to the lateral edge of the building component. Ideally, the method comprising the step of fixing the one or more stop ends to a portion of the building component that is between 37.5 mm and 300 mm inward from the lateral edge of the building component. Ideally, the method comprising the step of fixing the one or more stop ends to a portion of the building component that is 42.5 mm, 100 mm or 150 mm inward from the lateral edge of the building component, depending on the bond of the bricks to be placed on the load bearing means of the building component. Preferably, the method comprising the step of specifying the bearing length based, in part or in full, on the dimensions of the opening and / or on the weight of the load that is to be supported by the building component. The words positioned, placed and installed are used interchangeable throughout the specification. According to a third aspect of the invention there is provided a building or wall comprising a building component according to a first aspect of the invention. The invention will now be described with reference to the accompanying drawings: - Figure 1 is a perspective view of a building according to an embodiment of the present invention located above a window opening in a building. Figure 2 is an perspective view of a mechanically fixed stop end on a building component. Figure 3 is a second perspective view of a building component according to the present invention. Figure 4 is a sectional view of a building component in use according to the present invention. Figure 5 is a perspective view of a means for draining internal moisture to the external surface of a cavity wall according to one embodiment of the present invention. Figure 6a is a schematic view of a building component according to the present invention supported a full brick at each side of an opening. Figure 6b is a second schematic view of the building component of figure 6a supported on a half brick at each side of an opening having the same dimensions as the opening illustrated in figure 6a. Figure 7a is a schematic view of a building component according to the present invention positioned on a half brick at one side of the opening and a full brick at the other. Figure 7b is a second schematic view of the building component of figure 7a positioned on a different brick work bond than that illustrated in figure 7a but above a window having the same dimensions as that illustrated in figure 7a. Figure 8 is a perspective view of a stop end according to an embodiment of the present invention. Figure 9 is a second perspective view of a stop end according to an embodiment of the present invention. Figure 10 is a third perspective view of a stop end according to an embodiment of the present invention. In the drawings there is provided a building component generally indicated by reference numeral 1. The building component 1 has a mechanically fixed stop end 2 located proximal to lateral edge of end side 16 of the building component 1. The building component may also have an additional stop end located at the other lateral edge of the building component which is not visible in figure 1 but can be seen in figure 3. The building component also has a load bearing arrangement 20 and an arrangement for delivering internal moisture toward the outer leaf of a cavity wall 23. The building component is placed above a window opening 5 and is configured to distribute the weight of the wall 17 that is to be finished above the building component to either side 7, 8 of the opening 5. This prevents the opening from collapsing and thereby improves the structural integrity of the building. The building component 1 is sized to be positioned upon all / multiple reveals and / or brickwork bonds of an opening 5 above which the building component 1 is to be placed so that, in use, the stop ends 2 are in alignment with a perp joint and so that the building component 1 is supported on each side 7, 8 of the opening 5 in the wall by at least a minimum bearing length or recommended bearing length, after the building component has been moved laterally to align the mechanically fixed stop ends 2 with a perp joint (a perpendicular joint between two adjacent bricks of a wall, for example, see reference numeral 61 in figure 1). This means that multiple building components having different dimensions or features will not be required to accommodate different reveals and / or brickwork bonds immediately below the building component. This also means that lateral movement of the building component will not compromise the integrity of the building component and / or the mechanically fixed stop end. In this embodiment, the length A, B, illustrated in figure 6a, 6b, 7a, and 7b, of the building component 1 is sized based on the dimensions X, Y of the opening 5, 6 over which it is placed plus an overall minimum bearing length plus a compensating length. The compensating length corresponds to the maximum distance over which the building component would be required to move. In this embodiment, the overall distance the building component would be required to move to align the stop ends with a perp joint would be approximately equal to the half the length of a full brick such as half the length of brick 62. In the embodiment illustrated in the drawings, the building component is configured to be positioned upon all / multiple reveals and / or brickwork bonds of an opening above which the building component 1 is to be placed and to ensure that at least 150mm of the building component 1 is supported on each side 7, 8 of the opening. As illustrated in figures 6a, 6b and 7a, 7b, the building component 1 can be used for openings, 5 and 6, having the same dimensions regardless of the brickwork bond on which the building component is to be positioned. This means that the type of building component 1 required can be specified based on the length X, Y of the opening, without needing to specify the brickwork bond upon which the building component 1 will be positioned, saving time and costs. This is in comparison to building components which are custom built based on the brickwork bonds immediately below the building component 1 which may differ for each opening of a building construction, even if each opening has the same dimensions. This is further in comparison to building components with mechanically fixed stop ends where the building components are fabricated as standard, without taking account of the position of the mechanically fixed stop ends and / or the brickwork bond below the building component and / or the dimensions of the opening such that, in use, the mechanically fixed stop ends do not align with perp joints of a wall or such that an adequate length of the building component is not supported on each side of the opening. The building component 1 is elongate having two longitudinal sides 13, 14 and two end sides / lateral sides 15, 16 extending between the longitudinal sides 13, 14. The building component 1 has a left end side 15 and a right end side 16. The building component 1 is configured to be positioned such that, in use, the left end side 15 extends at least 150 mm beyond the left side 7 of the opening 5, 6and such that, in use, the right end side 16 extends at least 150 mm beyond the right side 8 of the opening 5, 6. The building component 1 is configured to be positioned such that, in use, at least 150 mm of the left end side 15 of the building component 1 is supported on brickwork that is laterally disposed to the left side 7 of the opening 5, 6 and at least 150 mm of the right end side 16 of the building component 1 is supported on brickwork that is laterally disposed to the right side 8 of the opening 5, 6. In this embodiment, the building component 1 is configured to be approximately 413 mm to 525 mm longer than the length X, Y of the opening 5, 6. Table 1 shows exemplary dimensions for a building component according to the present invention based on brickwork opening dimensions above which the building component is to be supported. Table 1: Exemplary dimensions for a building component based on brickwork opening dimensions. Brickwork Opening (mm) Building Component Length (mm) 572 985 685 1210 97 1210 240 1435 [m= mE 1247 1660 1360 1885 1472 1885 EN Tam [2 Tam [Em TEE 1922 2335 2147 Tams 2260 2785 2485 3010 2710 3235 However, the building component 1 is configurable for use over any brickwork opening regardless of the dimensions of the opening. The building component 1 is configured for use over any brickwork coursing and / or pattern including but not limited to stretcher, header, soldier, sailor, rowlock, shiner and / or any other suitable coursing and / or pattern. The building component 1 has a plurality of mechanically fixed stop ends 2. In this embodiment, the building component 1 has a mechanically fixed stop end 2 located on a left end 15 of the building component 1 and a mechanically fixed stop end 2 located on a right end 16 of the building component 1. This prevents moisture cascading over the end sides 15, 16 of the building component 1 into the cavity of a cavity wall. The mechanically fixed stop end 2 is locatable between masonry on a wall. The mechanically fixed stop end 2 is locatable between masonry on the outer leaf 17 of a cavity wall. The mechanically fixed stop end is locatable between adjacent bricks of a wall. The mechanically fixed stop end 2 is locatable in the perp joint 18 between adjacent bricks of a wall. The building component 1 is configurable to be positioned such that, in use, the mechanically fixed stop ends 2 are always in alignable with a perp joint 18 in the brickwork course immediately above the building component 1, as illustrated in figures 6a, 6b and 7a, 7b. The mechanically fixed stop ends 2 are fixed to the building component 1 at a position wherein the distance between adjacent mechanically fixed stop ends 1 corresponds to the length of a predetermined number of bricks to be installed on the building component 1 between adjacent mechanically fixed stop ends 2 which could be in a range of different bonds including, for example, stretcher or soldier bond. The building component 1 is a single leaf lintel, a double leaf lintel, a cavity tray, any other building component required to be positioned above an opening in a wall and / or a combination thereof. Figure 6a and 6b illustrates a building component having a length A that can be positioned over all / multiple brickwork bonds of an opening. Figure 6a and 6b illustrates a building component 1 positioned over opening 5 and 8, respectively. Opening 5 and opening 6 having the same dimensions and have a length X. The building component 1 can be positioned over opening 5, supported on reveals and / or brickwork bonds by / having full bricks 40. The same building component 1 can also be positioned over opening 6, supported on reveals and / or brickwork bonds by / having half bricks 41. The same building component 1 can also be positioned over opening (not shown), supported on reveals and / or brickwork bonds by / having a mixture of full and half bricks. Referring to figure 6b, if building component 1 were to start at a position where the mechanically fixed stop end was aligned with the perp joint 63 between brick 41, to the right of the opening, and the full brick to the right of brick 41, then when the upper course of bricks were being added, it would be clear that the perp joint 64 above would be staggered in relation to perp joint 63 and therefore the mechanically fixed stop end would not be alignable with the perp joint 64. However, due to the present invention, the building component is configured to be moved at least half the length of the stretcher bond arranged brick so that it is alignable with perp joint 64 while still being supported by at least 150 mm on each side of the opening 6. Figure 7a and 7b illustrates a building component having a length B that can be positioned over all / multiple brickwork bonds of an opening. Figure 7a and 7b illustrates a building component 1 positioned over opening 5 and 6, respectively. Opening 5 and opening 6 having the same dimensions and have a length Y. The building component 1 can be positioned over opening 5 and 6, supported on reveals and / or brickwork bonds by / having a full brick 40 on one side of the opening and a half brick 41 on the other side of the opening and vice versa. Referring to figure 7b, if building component 1 were to start at a position where the mechanically fixed stop end was flush with the reveal, i.e., between the opening 6 and half brick 41 to the right of the opening, then building component would not extend to the right side of the opening by at least the minimum / recommended bearing length. However, due to the present invention, the building component is configured to be moved at least half the length of the stretcher bond arranged brick so that the building component is supported ont both sides of the opening by at least the minimum / recommend bearing length and so that the stop end 2 is alignable with perp joint 64. The building component 1 is configurable to extend into the cavity of a cavity wall from the outer leaf 17 of a cavity wall. In this embodiment, the building component 1 is not fixed to the inner leaf 19 of a cavity wall and is not supported by the inner leaf 19. In use, the building component 1 does not contact the inner leaf 19 of the cavity wall. In this embodiment, the building component 1 is only fixed between masonry of the outer leaf 17 of the cavity wall at both sides 7, 8 of the opening in the building. This means that the building component will not form a cold bridge between the outer leaf and the inner leaf of the cavity wall. In this embodiment, the building component 1 is self-supporting within the cavity. This mitigates the requirement of mechanically fixing the building component 1 to the inner leaf 19 of a cavity wall and thereby reduces the amount of time and material used during the installation of the building component 1. Further, this allows the profiling of insulation 60 and positioning of the overlap of a cavity facing membrane to be completed independently, once the building component 1 is securely built into the brickwork. In this embodiment, building component 1 is formed from a non-combustible, rigid material. In this embodiment, the building component 1 is a one-piece building component. The building component 1 is configurable to distribute the weight of the wall above an opening to parts of the wall at either side of the opening. This prevents the opening from collapsing and thereby improves the structural integrity of the building. The building component 1 is elongate and has a base 21 for supporting masonry thereon. The building component 1 has an upstand 22 configurable to provide rigidity and strength to the building component 1. This prevents warping of the base of the building component. The base 21 is substantially rectangular having two longitudinal sides and two end sides extending between the longitudinal sides. At least part or all of the end sides are locatable between courses of masonry. The upstand 22 extends from the base 21. In the embodiments illustrated in figures 1- 4, the upstand 22 extends from the base 21 at approximately a 90° angle. The upstand 22 extends from one of the longitudinal sides of the base 21. The upstand 22 is co-extensive with the base 21. The upstand 22 is substantially rectangular in shape having two longitudinal sides and two end sides extending between the longitudinal sides. The base 21 and / or upstand 22 of the building component 1 are load bearing means such as a lintel. The building component 1 has an arrangement for delivering internal moisture towards the outer leaf of a cavity wall 23. The arrangement for delivering internal moisture towards the outer leaf of a cavity wall 23 extends from the base 21 or upstand 22 of the building component 1. In the embodiment shown, the arrangement for delivering internal moisture towards the outer leaf of a cavity wall 23 extends from the upstand 22. The building component 1 is formed from a water impervious material. This prevents moisture on the building component 1 passing through the building component to the cavity below. The building component 1 is configurable so as not to create condensation in or around the cavity wall. The arrangement for delivering internal moisture towards the outer leaf of a cavity wall 23 extends into the cavity of a cavity wall from the outer leaf 17 towards the inner leaf 19 of a cavity wall and is impervious to moisture. The arrangement for delivering internal moisture towards the outer leaf of a cavity wall 23 is formed from a separate piece of material than the base 21 and / or upstand 22 of the building component 1. The arrangement for delivering internal moisture towards the outer leaf of a cavity wall 23 is formed from a thinner piece of material than the base 21 and / or upstand 22 of the building component 1. This reduces the cost of manufacture of the building component. This is in comparison to the arrangement for delivering internal moisture towards the outer leaf of a cavity wall being formed from the same piece of material as the base and / or upstand which, in some embodiments, may be load bearing. In the embodiments illustrated in figures 1-4 the arrangement for delivering internal moisture towards the outer leaf of a cavity wall 23 is coupled to the upstand 22 via riveting, welding, spot welding, tack welding, adhering, gluing or by any other suitable means. This ensures a water tight seal between the base and / or upstand and the arrangement for delivering internal moisture towards the outer leaf of a cavity wall. Thereby this prevents moisture making its way underneath the arrangement for delivering internal moisture towards the outer leaf of a cavity wall. The arrangement for delivering internal moisture towards the outer leaf of a cavity wall 23 is coupled to one of the longitudinal sides of the upstand 22. The arrangement for delivering internal moisture towards the outer leaf of a cavity wall 23 is coupled to the upstand 22 at a longitudinal side of the upstand opposite to the longitudinal side of the upstand 22 extending from the base 21. The arrangement for delivering internal moisture towards the outer leaf of a cavity wall 23 extends from the upstand 22 at a longitudinal side of the upstand 22 opposite to the longitudinal side of the upstand 22 extending from the base 21. In the embodiment illustrated in figures 1-4, the arrangement for delivering internal moisture towards the outer leaf of a cavity wall 23 extends from the upstand 22 at an angle between 1° and 90° and at an incline. The arrangement for delivering internal moisture towards the outer leaf of a cavity wall 23 slopes upwardly from the upstand 22. However, where the building component 1 does not have an upstand, the arrangement for delivering internal moisture towards the outer leaf of a cavity wall 23 extends from and slopes upwardly from the base 21 of the building component. The arrangement for delivering internal moisture towards the outer leaf of a cavity wall 23 has a sloping portion 24. In the embodiment illustrated in figures 1-4, the sloping portion 24 extends from the upstand 22. However, where the building component 1 does not have an upstand 22, the sloping portion 24 extends from base 21 of the building component. The sloping portion 24 extends upwardly from the base 21 and / or upstand 22 towards the inner leaf 19 of the cavity wall. This provides a downward flow path for moisture within the cavity towards the outer leaf 17 of the cavity wall and thereby prevents the ingress of moisture within the cavity. The arrangement for delivering internal moisture towards an outer leaf of the cavity wall 23 is a cavity tray. The building component 1 has an arrangement for draining internal moisture to the external surface of a cavity wall 25. The arrangement for draining internal moisture to the external surface of a cavity wall 15 is locatable on an upper surface 26 of the building component 1. The arrangement for draining internal moisture to the external surface of a cavity wall 25 extends upwardly from the upper surface 26 of the building component 1. The arrangement for draining internal moisture to the external surface of a cavity wall 25 extends vertically upwardly from the upper surface 26 of the building component 1. The arrangement for draining internal moisture to the external surface of a cavity wall 25 is configurable to extend along the upper surface 26 of the building component from the base 21 of the building component 1 to at least a part of the arrangement for delivering internal moisture towards the outer leaf of a cavity wall 23. The arrangement for draining internal moisture to the external surface of a cavity wall 25 is configurable to extend along the upper surface 26 of the building component from the leading edge of the base 21 of the building component towards the end of the arrangement for delivering internal moisture towards the outer leaf of a cavity wall 23 furthest from the base 21 of the building component 1. However, in the embodiment illustrated in figure 5, the arrangement for draining internal moisture to the external surface of a cavity wall 25 extends from the leading edge of the base 21 to the front surface of upstand 22 and upwardly from the upper surface 26 of the base 21 to the end of the arrangement for delivering internal moisture towards the outer leaf of a cavity wall 23 coupled to the upstand 22 of the building component 1. The arrangement for draining internal moisture to the external surface of a cavity wall 25 is substantially an inverted U-shape having two upstands 27 and a canopy 28 extending between them. The canopy 28 prevents mortar or debris falling into and clogging the hollow flow path between the upstands 27 of the arrangement for draining internal moisture towards the external surface of a cavity wall 25. The arrangement for draining internal moisture to the external surface of a cavity wall 25 is hollow. The arrangement for draining internal moisture to the external surface of a cavity wall 25 has a hollow channel 29 between the upstands 27. This enables moisture to flow through the arrangement for draining internal moisture to the external surface of a cavity wall 25. At least a portion of the arrangement for draining internal moisture to the external surface of a cavity wall 15 is locatable between masonry on the outer leaf 17 of a cavity wall. At least a portion of the arrangement for draining internal moisture to the external surface of a cavity wall 25 is locatable between adjacent bricks of a wall, in the perp joint between masonry of a wall. This enables moisture to bypass the masonry / bricks. This is in comparison to the moisture being absorbed by the masonry. The arrangement for draining internal moisture to the external surface of a cavity wall 25 has an inlet (not shown) to allow moisture to flow into the hollow channel between the upstands 27. The arrangement for draining internal moisture to the external surface of a cavity wall 25 has a plurality of inlets to allow moisture to flow into the hollow channel 29 between the upstands 27. The plurality of inlets are locatable along the length of the upstands 27. The arrangement for draining internal moisture to the external surface of a cavity wall 25 has an outlet to allow moisture to flow out of the hollow channel. In use, the outlet is flush with the external surface of the outer leaf 17 of the cavity wall. In the embodiment illustrated in figure 5, the arrangement for draining internal moisture to the external surface of a cavity wall 25 is non- combustible and is formed from stainless steel. The arrangement for draining internal moisture to the external surface of a cavity wall 25 is a weep. The upper surface 26 of the building component 1 continues beneath the arrangement for draining internal moisture to the external surface of a cavity wall 25. The base 21 of the building component 1 continues beneath the arrangement for draining internal moisture to the external surface of a cavity wall 25. This prevents leakage of the moisture flowing through the arrangement for draining internal moisture to the external surface of a cavity wall into the masonry or building elements below the building component and back into the cavity. Alternatively and / or in addition, the arrangement for draining internal moisture to the external surface of a cavity wall 25 extends horizontally across the base 21 of the building component 1. The mechanically fixed stop end 2 is impervious to moisture and is a non-combustible stop end. This means that in the event of a fire the stop end will not burn and will provide no contribution to the fire and an insignificant release of smoke, droplets or other particles. In the embodiment shown, the mechanically fixed stop end 2 is formed from formed from stainless steel. The mechanically fixed stop end 2 may be formed from any other, non- pervious, rigid material. The mechanically fixed stop end 2 is configurable to prevent moisture cascading over the end of the building component 1. The mechanically fixed stop end 2 is configurable to maintain internal moisture on the building component 1 and to direct moisture on the building component 1 so that the moisture can be drained to the external surface of the outer leaf 17 of the cavity wall via an opening or the arrangement for draining internal moisture to the external surface of a cavity wall 25. The mechanically fixed stop end 2 is mechanically fixed to the building component 1 via riveting, welding, spot welding, tack welding, adhering, gluing or by any other suitable means. The one or more stop ends 2 are located inwardly from the lateral edges 15, 16 of the building component 1.This enables flexibility in the position of the building component i.e., it enables movement of the building component laterally without resulting in the building component being supported on each side of the opening by less than the minimum bearing length. This also reduces the amount of material required to manufacture the building component. This is in comparison to building components having mechanically fixed stop ends located at the very edge of the building component whereby, to allow for lateral movement and to maintain the minimum / recommended bearing length, the distance between the stop ends would need to be substantially increased in increments equal to the horizontal measurement of the brick that is to be positioned on the load bearing means of the building component, which would require larger sheets of material and would therefore be more expensive and would result in increased waste. The one or more stop ends are located inward from the lateral edge 16, 15 of the building component by at least 37.5 mm. The one or more stop ends are located inward from the relevant lateral edge 15, 16 of the building component by approximately 42.5 mm, 100 mm or 150 mm, depending on the bond of the bricks to be placed on the load bearing means of the building component. For example, where the mechanically fixed stop end is to sit flush with the reveal of the opening below the building component, the one or more mechanically fixed stop ends will sit at least a distance equal to the minimum bearing length / recommended bearing length away from the edge of the building component. This may occur where the bricks placed on the load bearing means of the building component are to be arranged in a soldier bond. Preferably, the mechanically fixed stop end located on a left end portion of the building component is located at least 37.5 mm to 300 mm inward from the left edge of the building component. Referring to figure 3, the mechanically fixed stop end 2a located on a right end portion of the building component 1 is located at least 37.5 mm to 300 mm inward from the right edge 16 of the building component and the stop end 2 located on a left end side of the building component is located at least 37.5 mm to 300 mm inward from the left edge 15 of the building component. However, the mechanically fixed stop end 1 may be formed as a folded portion of the building component 1. This prevents moisture making its way underneath the corner of the building component and backward into a window / door below the building component. The mechanically fixed stop end 2 is mechanically prefixed to the building component 1 in a factory environment. This mitigates against the risk of poor workmanship on site due to weather conditions and / or lack of technical equipment etc. Further, this ensures integrity of the mechanical joint to ensure that the stop end provides a water tight seal. ‘The mechanically fixed stop end 1 has a base 30 and an upstand 31 which extends upright from the base 30 of the mechanically fixed stop end 2. The mechanically fixed stop end 2 has an engagement portion 32 which is configurable to engage with and / or fix onto a surface of the building component 1. The engagement portion 32 of the mechanically fixed stop end 2 is configurable to form a watertight seal with a surface of a building component 1 with which the engagement portion 32 engages. The engagement portion 32 of the mechanically fixed stop end 2 is configurable to form a watertight seal at the joint of the stop end 2 with a surface of the building component 1 with which the engagement portion 32 engages. At least part of the engagement portion 32 is locatable on a surface of the mechanically fixed stop end 2 that engages with a surface of the building component 1, in use. Each surface of the mechanically fixed stop end 2 that engages with a surface of the building component 1 has an engagement portion 32. This prevents a gap forming between the stop end and the building component. Thereby, this prevents moisture on the surface of the building component from by passing the stop end through a gap between the stop end and the building component. At least part of the engagement portion 32 is locatable on the base 30 of the mechanically fixed stop end 2. At least part of the engagement portion 32 is locatable on a surface of the base 30 of the mechanically fixed stop end that engages with the base 21 of the building component 1. At least part of the engagement portion 32 is locatable on an underside of the base 30 of the mechanically fixed stop end 2. At least part of the engagement portion 32 is locatable on the upstand 31 of the mechanically fixed stop end 2. At least part of the engagement portion 32 is locatable on a surface of the upstand 31 that engages with the upstand 22 of the building component 1, in use. At least part of the engagement portion 32 is locatable on a surface of the upstand 31 that engages with the upstand 22 of the building component 1 such as the trailing end of the upstand 31 of the mechanically fixed stop end 2. In one embodiment, the base 30 of the mechanically fixed stop end 2 extends perpendicularly from the main planar surface 33 of the upstand 31 of the mechanically fixed stop end 2 and the trailing end of the mechanically fixed stop end 2 extends perpendicularly from the main planar surface 33 of the upstand 31. At least part of the engagement portion 32 extends perpendicularly from the main planar surface 33 of the upstand 31 of the mechanically fixed stop end 2. This increases the surface area of the engagement portion 32. Thereby, this increases the integrity of the joint of the mechanically fixed stop end on the surface of the building component to ensure that the mechanically fixed stop end provides a watertight seal. The engagement portion 32 extends across the entire length of the mechanically fixed stop end. By length, we mean the measurement of the stop end from the leading edge of the stop end locatable adjacent to the front surface of the outer leaf of a cavity wall to the trailing end of the stop end locatable adjacent to or beyond the back surface of the outer leaf of a cavity wall and / or opposing to the leading edge. The engagement portion 32 extends the entire height of the mechanically stop end 2. By height, we mean the measurement of the mechanically fixed stop end from the base of the stop end to the opposing end of the base. The engagement portion 32 extends entirely across the width of the mechanically fixed stop end 2. By width, we mean the measurement between the lateral ends and / or sides of the stop end and / or of the base and / or of the upstand. The trailing edge 34 of the one or more mechanically fixed stop ends 2 are fixed to the upstand 22 and / or sloping portion 23 of the building component 1. Where the building component 1 has an upstand 22, the trailing edge 34 of the mechanically fixed stop end 2 extends vertically upright from the base 30 of the mechanically fixed stop end 2 to correspond to the upstand 22 of the building component 1. However, where the sloping portion 23 of the building component extends from the base 21 of the building component 1, the trailing edge 34 of the mechanically fixed stop end 2 has a corresponding sloping portion to engage with the sloping portion 23 of the building component 1 and form a watertight seal therebetween. Where the sloping portion 23 of the building component 1 extends from the base 21 of the building component 1, the trailing edge 34 of mechanically fixed stop end 2 slopes upwardly from the base 30 of the mechanically fixed stop end 2 at an angle corresponding to the sloping portion 23 of the building component 1 to engage with the sloping portion 23 of the building component 1 and form a watertight seal therebetween. ‘The mechanically fixed stop end 2 is mechanically fixed to the base 21 and / or to the upstand 22 and / or to the sloping portion 23 of the building component 1. The base 30 of the mechanically fixed stop end 2 is mechanically fixed to the base 21 of the building component 1. The upstand 31 of the mechanically fixed stop end 2 is mechanically fixed to the upstand 22 and / or sloping portion 23 of the building component 1. The trailing edge 34 of the mechanically fixed stop end 2 is mechanically fixed to the upstand 22 and / or sloping portion 23 of the building component 1. The building component 1 is manufactured by obtaining the dimensions of the opening above which the building component is to be placed, for example obtaining the dimensions of opening 5 and specifying a bearing length, for example 150 mm and specifying a compensating length between 32.5 mm and 225 mm or 215 mm, then sizing the building component 1 based on the dimensions of the opening 5 plus the bearing length 150 mm plus the compensating length between 32.5 mm and 215 mm or 225 mm based on the arrangement / brick work bond of the bricks that are to be positioned on the load bearing arrangement 20 of the building component 1. The skilled man 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. This includes, but is not limited to, the dependent claims from any claim being used as dependent claims for any other claim in the claims of this application. 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. The features disclosed in the foregoing description or the following 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.

Claims

1. A method of manufacturing a building component having a load bearing means, a means for delivering internal moisture towards the outer leaf of a cavity wall and one5 or more mechanically fixed stop ends, wherein the method comprises the step ofobtaining the dimensions of the opening above which the building component is to be placed, specifying a bearing length based on at least the minimum bearing length and / or a recommended bearing length and specifying a compensating length, the method further comprising the step of sizing the building component based on the10 dimensions of the opening plus the bearing length plus the compensating length;wherein the building component is a lintel; wherein the method comprises the step of specifying a location on the building component and / or load bearing means for the one or more stop ends to be mechanically fixed; wherein the method comprises the step of fixing one or more stop ends to a portion of the building component that is15 inward from the lateral edge of the building component by 37.5 mm to 300 mm; andwherein the method comprises the step of sizing the building component such that the entire length of the building component is between 232.5 mm and 815 mm longer than an opening above which the building component is to be supported.

2. A method according to claim 1, wherein the method comprises the step of specifying20 the compensating length based on the type of brick work bond to be installed abovethe load bearing means of the building component, in use.

3. A method according to any one of the preceding claims, wherein the method comprising the step of sizing the building component such that, in use, the building component is still supported on each side of an opening, by at least the bearing25 length, after the building component has been moved left or right to ensure that theone or more stop ends are in alignment with a perp joint.

4. A method according to any preceding claim, wherein the method comprises the step of specifying a bearing length that corresponds to the overall bearing length that is to be added to ensure that the building component is supported on each side of the30 opening by at least the minimum bearing length and / or recommended bearing length.

5. A method according to any preceding claim, wherein the method comprises the step of sizing the compensating length to correspond to the maximum distance over which the building component would be required to move, to the left or right of the opening, to align the one or more stop ends with a perp joint.35 6. A method according to claims 1 to 4, wherein the method comprises the step of sizingthe compensating length to correspond to half of the horizontal measurement of a01 04 25surface of one of the bricks that are to be installed above the load bearing means of the building component.

7. A method according to any preceding claim, where the method comprises the step of sizing the building component such that the entire length of the building component is 5 between 413 mm and 525 mm longer than the opening above which it is to beinstalled.

8. A method according to any one of claims 1 to 6, wherein the method comprises the step of sizing the building component such that the entire length of the building component is between 232.5 and 632.5 mm longer than an opening above which it is 10 to be installed.

9. A method according to any one of claims 1 to 6, wherein the method comprises the step of sizing the building component such that the entire length of the building component is between 307.5 and 707.5 mm longer than an opening above which it is to be installed.15 10. A method according to any one of the preceding claims, wherein the methodcomprises the step of sizing the building component such that the entire length of the building component is approximately 413 mm longer than the length of the opening above which it is to be installed.

11. A method according to any one of claims 1 to 9, wherein the method comprises the 20 step of sizing the building component such that the entire length of the buildingcomponent is approximately 525 mm longer than the length of the opening above which it is to be installed.

12. A method according to any preceding claim, wherein the method comprises the step of forming the building component from steel, stainless steel and / or mild steel hot 25 dipped in 100-micron galvanized coating.

13. A method according to any preceding claim, wherein the method comprises the step of forming the building component via cutting, roll-forming, and / or pressing.

14. A method according to any preceding claim, wherein the method comprises the step of mechanically fixing one or more stop ends to the building component and / or load 30 bearing means of the building component via riveting, welding, spot welding, tackwelding, adhering, and / or gluing.

15. A method according to any preceding claim, wherein the method comprises the step of fixing the one or more stop ends to a portion of the building component that is proximal to the lateral edge of the building component.35 16. A method according to any preceding claim, wherein the method comprises the stepof fixing the one or more stop ends to a portion of the building component that is01 04 25inward from the lateral edge of the building component by approximately 37.5 mm to 150 mm.

17. A method according to any preceding claim, wherein the method comprises the step of fixing the one or more stop ends to a portion of the building component that is5 inward from the lateral edge of the building component by approximately 32.5 mm to150 mm.

18. A building component comprising a load bearing means, a means for delivering internal moisture towards the outer leaf of a cavity wall and one or more mechanically fixed stop ends, the building component is sized to be positioned upon all / multiple10 reveals and / or brickwork bonds of an opening in a wall so that, in use, the one ormore mechanically fixed stop ends are alignable with a perpendicular joint and so that the building component is supportable on each side of the opening by at least a minimum bearing length or recommended bearing length after the building component has been moved laterally to align the one or more mechanically fixed stop15 ends in a perpendicular joint, wherein the building component is sized based on thedimensions of the opening plus the bearing length plus a compensating length; wherein the one or more stop ends are fixed to a portion of the building component that is inward from the lateral edge of the building component by 37.5 mm to 300 mm; wherein the building component is a lintel; and wherein the entire length of the20 building component is between 232.5 mm and 815 mm longer than an opening abovewhich the building component is to be supported.

19. A building component as claimed in claim 18, wherein the one or more stop ends are fixed to a portion of the building component that is inward from the lateral edge of the25 building component by approximately 37.5mm to 150mm.

20. A building component as claimed in claim 18, wherein the one or more stop ends are fixed to a portion of the building component that is inward from the lateral edge of the building component by approximately 42.5mm to 150mm.

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