Seal apparatus for secondary glazing system

Abstract

A seal apparatus 10, for use in a secondary glazing system comprises a first component 12 configured for attachment to a window frame or window surround (32 fig 3), and a second component 14, configur

Description

FIELD This relates to a seal apparatus for a secondary glazing system; to a secondary glazing system comprising the seal apparatus; and to an associated method for installing secondary glazing. BACKGROUND Improving the energy efficiency of buildings is seen as a key part in tackling climate change. One of the major contributors to energy inefficiency in the built environment is the heat transfer through the windows of buildings, in particular in older buildings with single glazing. While new buildings are typically constructed, and in many jurisdictions are now mandated to be constructed, using at least double-glazed windows, a significant proportion of older buildings retain single glazing. Where a window of a building comprises a single layer of glazing, increased levels of heat are lost through said window to the environment compared to that lost through a double- or triple-glazed window. As such, any building that features singleglazed windows is thermally inefficient by comparison. This is especially true of older buildings that feature single-glazed windows. The wastage of energy in the form of heat loss through single-glazed windows negatively affects the environment. Furthermore, the increased energy consumption associated with heating a thermally inefficient building as described will often result in significantly increased energy bills as a result. Furthermore, increased levels of noise pollution are transmitted into and out of a building through a window comprising a single layer of glazing, compared to that transmitted through a double- or triple-glazed window. One solution to the above drawbacks is the installation of secondary glazing, whereby an additional or “secondary” glazing panel is affixed to the window. The secondary panel may be constructed from modern, toughened, UV and / or energy efficient glass, such that heat and / or noise transmission through the window is reduced. The secondary glazing panel is typically installed so that there is a gap between the secondary glazing panel and the existing glazing panel, the air present in the gap further enhancing the performance of the installation in comparison to single glazing. Although secondary glazing systems have existed for some time, there remain drawbacks with existing systems. For example, the installation of secondary glazing is often labour intensive and requires expert installers, with resulting increased installation time and cost to the building owner. The use of secondary glazing has also been limited in its use due to it being unsuitable for use in buildings with irregular window frame configurations SUMMARY Aspects of the present disclosure relate to a seal apparatus for a secondary glazing system; to a secondary glazing system comprising the seal apparatus; and to an associated method of installing secondary glazing. According to a first aspect, there is provided a seal apparatus for use in a secondary glazing system, the apparatus comprising: a first component configured for attachment to a window frame or window surround, wherein the first component is adaptable to a profile of said window frame or surround; and a second component configured for coupling to the first component, wherein the second component is configured to receive a glazing panel so as to secure the glazing panel to the window frame or surround on coupling of the second component to the first component; and wherein the second component comprises a seal portion, wherein the seal portion is reconfigurable from a first configuration to a second, sealed, configuration, on coupling the second component to the first component, so as to provide a seal between the first component and the second component and thus between the glazing panel and the window frame or surround on coupling of the second component to the first component. In use, the first component is attached to the window frame or surround and conforms to the profile thereof. On coupling the second component to the first component, the seal portion is reconfigured from the first configuration to the second, sealed, configuration. In some instances, the action of applying a push force in order to couple the first component to the second component reconfigures the seal portion from the first configuration to the second, sealed, configuration. In other instances, a first push force may be applied in order to couple the first component to the second component, and a second push force may be applied in order to reconfigure the seal portion from the first configuration to the second, sealed configuration. In order to remove the apparatus from the window frame or surround, a pull force is applied to the second component such that the seal portion is reconfigured from the second, sealed, configuration to the first configuration. Beneficially, the seal apparatus facilitates the provision of an existing window with an additional glazing panel, i.e. facilitates the process of secondary or tertiary glazing. As a result, the thermal efficiency of the window and the building to which the window belongs is improved, as less heat is lost to the environment. This increase in thermal efficiency leads to a decrease in the level of energy wasted in heating, or where applicable cooling, the building, reducing the building’s environmental impact, as well as the costs required to heat, or where applicable cool, the building. The additional glazing panel also acts to reduce the level of noise transmission through the window. Moreover, the attachability and resultant conformance of the adaptable first component to the profile of the existing window frame or surround, as well as the reconfiguration of the seal portion into the second, sealed, configuration by means of a push force and into the first configuration by means of a pull force, mitigate the need for any complex or expert installation. As such, the labour, costs and duration associated with conventional processes of secondary or tertiary glazing are reduced. The present seal apparatus is particularly beneficial in older buildings with single glazing orthose with conventional secondary or tertiary glazing. The adaptability and resultant conformance of the first component to the window frames or surrounds of these buildings - the profiles of which are often irregular and vary widely - facilitates the attachment of the seal apparatus to the frames or surrounds. As described above, the seal apparatus comprises a second component configured for coupling to the first component. The second component may be at least partially flexible, that is part or all of the second component may be flexible. The flexibility of the second component may be provided by the shape of the second component, the geometry of the second component and / or the material from which the second component is constructed. The second component may be at least partially constructed from an elastomer. For example, the second component may be at least partially constructed from rubber. Alternatively, or additionally, the second component may be at least partially constructed from a thermoplastic elastomer (TPE). The second component may be at least partially constructed from a polymer. For example, the second component may be at least partially constructed from a thermoplastic polymer, e.g. polypropylene. Beneficially, the use of a thermoplastic polymer or thermoplastic elastomer facilitates the use of recycled materials in the construction of the seal apparatus and / or recycling of the seal apparatus at the end of its life. As described above, the second component is configured to receive a glazing panel. The second component may comprise a receiving portion. The receiving portion may be configured to receive the glazing panel. The receiving portion may define a slot. The slot may be u-shaped or substantially u-shaped. However, it will be understood that the receiving portion may comprise other suitable forms. The receiving portion may be at least partially flexible, that is part or all of the receiving portion may be flexible. The flexibility of the receiving portion may be provided by the shape of the receiving portion, the geometry of the receiving portion and / or the material from which the receiving portion is constructed. The receiving portion may be at least partially constructed from an elastomer. For example, the receiving portion may be at least partially constructed from rubber. Alternatively, or additionally, the receiving portion may be at least partially constructed from a thermoplastic elastomer (TPE). The receiving portion may be at least partially constructed from a polymer. For example, the receiving portion may be at least partially constructed from a thermoplastic polymer, e.g. polypropylene. The receiving portion may comprise a first wall portion The receiving portion may comprise a second wall portion. The receiving portion may comprise a base portion. The base portion may be provided between and connect the first wall portion and the second wall portion. It will be understood that the first wall portion, second wall portion and base portion may be integrally formed and so the first wall portion, base portion and second wall portion may be formed as single component. The first wall portion and the second wall portion may be parallel or substantially parallel to each other. Alternatively, one or both of the first wall portion and the second wall portion may be oriented at an angle to the other of the first wall portion and the second wall portion. In particular embodiments, one of the first wall portion and the second wall portion is angled. More particularly, distal ends of the first wall portion and the second wall portion (by virtue of one or both of the first wall portion and the second wall portion being angled) may converge towards each other. The receiving portion may be resiliently biased with one or both of the first wall portion and the second wall portion defining said angle. Beneficially, this means that the receiving portion may facilitate the easy location of the glazing panel within the slot but grips the glazing panel once located therein. Alternatively, or additionally, the resilient bias may beneficially accommodate thermal expansion and / or contraction, in use, while maintaining sealing performance. As described above, the second component comprises a seal portion, wherein the seal portion is reconfigurable from a first configuration to a second, sealed, configuration. The seal portion may be compressed to reconfigure the seal portion from the first configuration to the second, sealed, configuration. The seal portion may comprise or take the form of a gasket seal member. The seal portion may comprise a first surface. The first surface may be defined as an upper surface or distal surface of the seal portion since it is distal / faces away from the user in use. However, it will be understood that the first surface, by virtue of location of the seal apparatus at any side of the window, may be in any orientation. The seal portion may comprise a second surface. The second surface may be defined as a lower or proximal surface of the seal portion since it is proximal / faces towards the user in use. However, it will be understood that the second surface, by virtue of location of the seal apparatus at any side of the window, may be in any orientation. The first, distal, surface and the second, proximal, surface may be coupled together or form a single piece. The first and second surfaces of the seal portion may define respective lips which move towards each other to reconfigure the seal portion from the first configuration to the second, sealed, configuration. It will be recognised that one surface, e.g. lip, may be stationary and the other surface, e.g. lip, may move towards the other or that both surfaces may move towards each other. In particular embodiments, the seal portion may be oval in cross-section. In some embodiments, the seal portion may be configured to sealingly engage the first component. The first surface of the seal portion may be configured to engage the first component. The first surface of the seal portion may be offset from or non-sealingly engage the first component in the first configuration. The first surface of the seal portion may fully or sealingly engage the first component in the second, sealed, configuration. In use, the second component is coupled to the first component such that the first surface of the seal portion is offset from or non-sealingly engages the first component. The seal portion is then reconfigured from the first configuration to the second, sealed, configuration by the exertion of a push force on the second component, e.g. the receiving portion, such that the first surface of the seal portion is urged into full or sealing engagement with the first component, and the seal apparatus is sealed. In other embodiments, the seal portion may be configured to engage another part of the second component, e.g. the coupling portion of the second component. The seal portion may be at least partially flexible, that is part or all of the seal portion may be flexible. The flexibility of the seal portion may be provided by the shape of the seal portion, the geometry of the seal portion and / or the material from which the seal portion is constructed. The seal portion may be at least partially constructed from an elastomer. For example, the seal portion may be at least partially constructed from rubber. Alternatively, or additionally, the seal portion may be at least partially constructed from a thermoplastic elastomer (TPE). The seal portion may be at least partially constructed from a polymer. For example, the seal portion may be at least partially constructed from a thermoplastic polymer, e.g. polypropylene. As described above, the second component is configured for coupling to the first component. The second component may comprise a coupling portion. The coupling portion of the second component may be configured to couple the second component to the first component. The coupling portion of the second component may take any suitable form. The coupling portion of the second component may be configured for mechanically coupling the second component to the first component. For example, the coupling portion and the first component may form a snap-fit connection. The coupling portion of the second component may comprise or take the form of a male member. For example, the coupling portion of the second component may have an arrowhead shape in cross-section, or the like. Alternatively, the coupling portion of the second component may have a semi-circular or semi-oval shape in cross-section, or the like. Beneficially, the shape of the coupling portion of the second component may aid the user in aligning, locating and urging the second component and associated glazing panel into engagement with the first component. Alternatively, or additionally, the shape of the coupling portion of the second component may also provide a degree of resistance to removal of the second component from the first component. In use, this may beneficially permit the glazing panel to be held in place without the user having to constantly hold the second component and associated glazing panel during installation. In this way, the second component and glazing panel may be clipped into the first component, permitting the user to manually adjust the position of the assembly before applying the final push force to reconfigure the seal apparatus into its sealed condition. Alternatively, the coupling portion of the second component may comprise or take the form of a female member. Alternatively, or additionally, the second component may be configured for magnetically coupling to the first component. The coupling portion of the second component may be configured for magnetically coupling to the first component. The coupling portion of the second component may comprise, take the form of or provide mounting for a magnetic element of a first polarity. For example, the coupling portion of the second component may comprise, take the form of or provide mounting for a magnetic plate of a first polarity. In use, the magnetic element of the first polarity magnetically couples the second component to the first component. In addition to coupling the first component and the second component, the magnetic coupling may provide a seal between the first component and the second component. The coupling portion of the second component may be at least partially flexible, that is part or all of the coupling portion of the second component may be flexible. The flexibility of the coupling portion may be provided by the shape of the coupling portion, the geometry of the coupling portion and / or the material from which the coupling portion is constructed. The coupling portion may be at least partially constructed from an elastomer. For example, the coupling portion may be at least partially constructed from rubber. Alternatively, or additionally, the coupling portion may be at least partially constructed from a thermoplastic elastomer (TPE). The coupling portion of the second component may be at least partially constructed from a polymer. For example, the coupling portion may be at least partially constructed from a thermoplastic polymer, e.g. polypropylene. The seal portion may be interposed between the receiving portion and the coupling portion. The seal portion may be coupled to the receiving portion. The seal portion may be coupled to the coupling portion. At least two of the seal portion, receiving portion and coupling portion may be integrally formed and / or form a unitary construction. In particular embodiments, all of the seal portion, receiving portion and coupling portion may be integrally formed and / or form a unitary construction. As described above, the seal apparatus comprises a first component configured for attachment to a window frame or window surround. The first component may be at least partially flexible, that is part or all of the first component may be flexible. The flexibility of the first component may be provided by the shape of the first component, the geometry of the first component and / or the material from which the first component is constructed. The first component may be at least partially constructed from an elastomer. For example, the first component may be at least partially constructed from rubber. Alternatively, or additionally, the first component may be at least partially constructed from a thermoplastic elastomer (TPE). The first component may be at least partially constructed from a polymer. For example, the first component may be at least partially constructed from a thermoplastic polymer, e.g. polypropylene. Beneficially, the use of a thermoplastic polymer or thermoplastic elastomer facilitates the use of recycled materials in the construction of the seal apparatus and / or recycling of the seal apparatus at the end of its life. As described above, the first component is configured for attachment to a window frame or surround. The first component may comprise a first, attachment, portion. The first portion may be configured for attachment to the window frame or surround. The first component may be configured for adhesive attachment to the window frame or surround. The first portion may be configured for adhesive attachment to the window frame or surround. Alternatively, or additionally, the first component may be configured for magnetic attachment to the window frame or surround. The first portion may be configured for magnetic attachment to the window frame or surround. The first component may be configured for magnetic attachment to a magnetic strip attached to the window frame or surround. The first potion may be configured for magnetic attachment to a magnetic tape or strip attached to the window frame or surround. The magnetic tape or strip may be adhesively attached to the window frame or surround. The first portion may comprise, or may provide mounting for, a magnetic tape or strip of opposite polarity to the polarity of the magnetic tape or strip attached to the window frame or surround. As described above, the first component is adaptable to a profile of said window frame or surround. The adaptability of the first component may be provided by the shape of the first component, the geometry of the first component and / or the material from which the first component is constructed. The first portion may be adaptable to the profile of the window frame or surround. The adaptability of the first portion may be provided by the shape, the geometry and / or the material from which the first portion is constructed. The first portion may be curved. For example, the first portion may comprise or take the form of a concave first portion. The first portion may define a semi-oval curve in cross-section. Alternatively, the first portion may define a semi-circular curve in cross-section. In use, the concave first portion is adaptable and attaches to the window frame or surround, conforming to the profile thereof. The present seal apparatus is particularly beneficial in providing the existing windows of older buildings with secondary or tertiary glazing. The adaptability and resultant conformance of the first portion to the window frames of these buildings - the profiles of which are often irregular and vary widely - facilitates the attachment of the seal apparatus to the frame or surround. The first portion may be at least partially flexible, that is part or all of the first portion may be flexible. The flexibility of the first portion may be provided by the shape of, the geometry of and / or the material from which the first portion is constructed. The first portion may be at least partially constructed from an elastomer. For example, the first portion may be at least partially constructed from rubber. Alternatively, or additionally, the first portion may be at least partially constructed from a thermoplastic elastomer (TPE). The first portion may be at least partially constructed from a polymer. For example, the first portion may be at least partially constructed from a thermoplastic polymer, e.g. polypropylene. As described above, the second component is configured for coupling to the first component. The first component may be configured to receive the second component at least partially therein. The first component may comprise a second, coupling, portion. The second portion may comprise or take the form of a female member. Alternatively, where the coupling portion of the second component comprises a female member, the second, coupling, portion of the first component may comprise or take the form of a male member. The second portion may be configured to receive the second component, e.g. the coupling portion of the second component, at least partially therein. The second portion and the second component may be configured for mechanical coupling. For example, the second component and the second portion may form a snap-fit connection. In use, the second portion of the first component receives the coupling portion of the second component therein. Beneficially, the mechanical connection of the first and the second components by means of a snap-fit connection mitigates the need for any complex or expert installation. As such, the labour, costs and duration associated with conventional processes of secondary or tertiary glazing are reduced. Alternatively, or additionally, the second portion and the second component may be configured for magnetic coupling. The coupling portion of the second component may be configured for magnetically coupling the second component to the second portion. The second portion may comprise, take the form of or provide mounting for a magnetic element of a second polarity. For example, the second portion may comprise, take the form of or provide mounting for a magnetic plate of a second polarity. In use, the coupling portion of the second component comprises or takes the form of the magnetic plate of the first polarity, and is magnetically coupled to the second portion of the first component comprising or taking the form of the magnetic plate of the second polarity. Beneficially, the magnetic connection of the first and the second components mitigates the need for any complex or expert installation. As such, the labour, costs and duration associated with conventional processes of secondary or tertiary glazing are reduced. The second portion may be at least partially flexible, that is part or all of the second portion may be flexible. The flexibility of the second portion may be provided by the shape of, the geometry of and / or the material from which the second portion is constructed. The second portion may be at least partially constructed from an elastomer. For example, the second portion may be at least partially constructed from rubber. Alternatively, or additionally, the second portion may be at least partially constructed from a thermoplastic elastomer (TPE). The second portion may be at least partially constructed from a polymer. For example, the second portion may be at least partially constructed from a thermoplastic polymer, e.g. polypropylene. The first portion and the second portion may be coupled to each other. In particular embodiments, the first portion and the second portion may be integrally formed and / or form a unitary construction. At least one of, and in particular embodiments both of, the first component and the second component may comprise or take the form of an elongate member or strip. The first and / or second components may each comprise or take the form of an extrusion. Beneficially, the first and / or second components may be readily manufactured and / or cut to size. This in turn facilitates the use of the seal apparatus with buildings with complex, non-standard sizes and / or profiles. In use, the receiving portion takes the form of a flexible slot, and forms a unitary construction with the seal and the coupling portion, each of which is also flexible. The coupling portion and the second portion form a snap-fit connection, the second portion being flexible also. The first and the second portions form a unitary construction, the first portion being flexible also. Having adhesively attached the first portion to the window frame such that the first portion conforms to the profile thereof, and reconfigured the seal portion into the second, sealed, configuration, the receiving portion receives the glazing panel therein. Beneficially, the flexibility of the first and second components compensates for any thermal expansion and / or contraction that the glazing panel undergoes whilst installed, reducing and / or mitigating any structural damage to the glazing panel and / or the seal apparatus itself otherwise caused by the thermal expansion and / or contraction. In turn, any reduction in the thermal efficiency of the window to which the seal apparatus is attached otherwise caused by the structural damage as described is reduced and / or mitigated. According to a second aspect, there is provided a secondary glazing system, the system comprising: one or more seal apparatuses according to the first aspect; and a glazing panel. Alternatively, or additionally, the system may comprise one or more magnetic strips configured for attachment to the window frame or surround. The one or more magnetic strips may be adhesively attached to the window frame or surround. At least one of the magnetic strips may be attached to a first length of the window frame or surround. At least one of the magnetic strips may be attached to a second length of the window frame or surround. At least one of the magnetic strips may be attached to a third length of the window frame or surround. At least one of the magnetic strips may be attached to a fourth length of the window frame or surround In use, a magnetic strip is adhesively attached to the first, second, third and fourth lengths of the window frame or surround respectively. The receiving portion of each of the seal apparatuses is magnetically attached to the magnetic strip adhesively attached to the first, second, third and fourth lengths of the window frame or surround respectively. The glazing panel may be at least partially constructed from a polymer. For example, the glazing panel may be at least partially constructed from acrylic. The glazing panel may be at least partially constructed from polycarbonate. Alternatively, or additionally, the glazing panel may be at least partially constructed from glass. The components of the seal apparatus of the first aspect or the system of the second aspect may be formed as a kit of parts. According to a third aspect, there is provided a method of installing secondary glazing using the seal apparatus of the first aspect or the secondary glazing system of the second aspect. The invention is defined by the appended claims. However, for the purposes of the present disclosure it will be understood that any of the features defined above or described below may be utilised in isolation or in combination. For example, features described above in relation to one of the above aspects or below in relation to the detailed description below may be utilised in any other aspect, or together form a new aspect. BRIEF DESCRIPTION OF THE DRAWINGS These and other aspects will now be described with reference to the accompanying drawings, in which: Figure 1 shows a perspective cross-sectional view of a seal apparatus for a secondary glazing system; Figure 2 shows a cross-sectional view of the seal apparatus of Figure 1; Figure 3 shows a photograph of the seal apparatus of Figure 1 adhesively attached to a window frame or surround; Figures 4 &5 show a secondary glazing system comprising the seal apparatus of Figure 1 and a glazing panel; Figure 6 shows a cross-sectional view of an alternative seal apparatus for a secondary glazing system; Figure 7 shows a perspective cross-sectional view of an alternative seal apparatus for a secondary glazing system; Figure 8 shows a cross-sectional view of the seal apparatus of Figure 7; Figure 9 shows a photograph of the seal apparatus of Figure 8 magnetically attached to a window frame or surround; Figures 10 &11 show a secondary glazing system comprising the seal apparatus of Figure 7, a glazing panel and a magnetic strip; Figure 12 shows a cross-sectional view of an alternative seal apparatus for a secondary glazing system; Figure 13 shows an alternative configuration of the first component of the seal apparatus; and Figure 14 shows an alternative configuration of the second component of the seal apparatus. DETAILED DESCRIPTION OF THE DRAWINGS Referring first to Figures 1 and 2 of the accompanying drawings, there is shown a seal apparatus, generally denoted 10, for use in a secondary glazing system (1000, Figures 4 &5). As shown, the apparatus 10 comprises a first component, generally denoted 12, configured for attachment to a window frame or window surround (32, Figure 3), wherein the first component 12 is adaptable to a profile of said window frame or surround 32. The apparatus 10 comprises a second component, generally denoted 14, configured for coupling to the first component 12, wherein the second component 14 is configured to receive a glazing panel (1034, Figures 4 &5) so as to secure the glazing panel 1034 to the window frame or surround 32 on coupling of the second component 14 to the first component 12. The second component 14 comprises a seal portion 16, wherein the seal portion 16 is reconfigurable from a first configuration to a second, sealed, configuration, on coupling the second component 14 to the first component 12, so as to provide a seal between the first component 12 and the second component 14 and thus between the glazing panel 1034 and the window frame or surround 32 on coupling of the second component 14 to the first component 12. In use, the first component 12 is attached to the window frame or surround 32 and conforms to the profile thereof. On coupling the second component 14 to the first component 12, the seal portion 16 is reconfigured from the first configuration to the second, sealed, configuration. In some instances, the action of applying a push force in order to couple the first component 12 to the second component 14 reconfigures the seal portion 16 from the first configuration to the second, sealed, configuration. In other instances, a first push force may be applied in order to couple the first component 12 to the second component 14, and a second push force may be applied in order to reconfigure the seal portion 16 from the first configuration to the second, sealed configuration. In order to remove the apparatus 10 from the window frame or surround 32, a pull force is applied to the second component 14 such that the seal portion 16 is reconfigured from the second, sealed, configuration to the first configuration. Beneficially, the seal apparatus 10 facilitates the provision of an existing window with an additional glazing panel, i.e. facilitates the process of secondary or tertiary glazing. As a result, the thermal efficiency of the window and the building to which the window belongs is improved, as less heat is lost to the environment. This increase in thermal efficiency leads to a decrease in the level of energy wasted in heating, or where applicable cooling, the building, reducing the building’s environmental impact, as well as the costs required to heat, or where applicable cool, the building. The additional glazing panel also acts to reduce the level of noise transmission through the window. Moreover, the attachability and resultant conformance of the adaptable first component 12 to the profile of the existing window frame or surround 32, as well as the reconfiguration of the seal portion 16 into the second, sealed, configuration by means of a push force and into the first configuration by means of a pull force, mitigate the need for any complex or expert installation. As such, the labour, costs and duration associated with conventional processes of secondary or tertiary glazing are reduced. The present seal apparatus 10 is particularly beneficial in older buildings with single glazing or conventional secondary or tertiary glazing. The adaptability and resultant conformance of the first component 12 to the window frames or surrounds of these buildings - the profiles of which are often irregular and vary widely - facilitates the attachment of the seal apparatus 10 to the frames or surrounds. As described above, the seal apparatus 10 comprises a second component 14 configured for coupling to the first component 12. The flexibility of the illustrated second component 14 is provided by the shape of the second component 14, the geometry of the second component 14 and / or the material from which the second component 14 is constructed. The illustrated second component 14 is at least partially constructed from a thermoplastic polymer, e.g. polypropylene, or a thermoplastic elastomer (TPE). Beneficially, the use of a thermoplastic polymer or a thermoplastic elastomer (TPE) facilitates the use of recycled materials in the construction of the seal apparatus 10 and / or recycling of the seal apparatus 10 at the end of its life. As described above, the second component 14 is configured to receive a glazing panel 1034. The second component 14 comprises a receiving portion 18, the receiving portion 18 being configured to receive the glazing panel 1034. The receiving portion 18 defines a slot. The illustrated slot is u-shaped or substantially u-shaped. However, it will be understood that the receiving portion 18 may comprise other suitable forms. The flexibility of the illustrated receiving portion 18 is provided by the shape of the receiving portion 18, the geometry of the receiving portion 18 and / or the material from which the receiving portion 18 is constructed. The illustrated receiving portion 18 is at least partially constructed from a thermoplastic polymer, e.g. polypropylene, or a thermoplastic elastomer (TPE). As shown, the receiving portion 18 comprises a first wall portion 18a, a second wall portion 18b and a base portion 18c. In the illustrated receiving portion 18, the first wall portion 18a, second wall portion 18b and base portion 18c are integrally formed. In the illustrated receiving portion 18, the first wall portion 18a and the second wall portion 18b are parallel or substantially parallel to each other. As described above, the second component 14 comprises a seal portion 16, wherein the seal portion 16 is reconfigurable from a first configuration to a second, sealed, configuration. The flexibility of the seal portion 16 is provided by the shape of the seal portion 16, the geometry of the seal portion 16 and / or the material from which the seal portion 16 is constructed. The illustrated seal portion 16 is constructed from a thermoplastic polymer, e.g. polypropylene, or a thermoplastic elastomer (TPE). The seal portion 16 is compressed to reconfigure the seal portion 16 from the first configuration to the second, sealed, configuration. The seal portion 16 takes the form of a gasket seal member. The seal portion 16 comprises a first, distal, surface 20a and a second, proximal, surface 20b. The first surface 20a may be defined as an upper surface or distal surface since it is distal / faces away from the user in use. However, it will be understood that the first surface 20a, by virtue of location of the seal apparatus 10 at any side of the window, may be in any orientation. The second surface may be defined as a lower or proximal surface since it is proximal / faces towards the user in use. However, it will be understood that the second surface 20b, by virtue of location of the seal apparatus 10 at any side of the window, may be in any orientation. In the illustrated seal apparatus 10, the first, distal, surface 20a and the second, proximal, surface 20b form a single piece. The first and second surfaces 20a, 20b of the seal portion 16 define respective lips which move towards each other to reconfigure the seal portion 16 from the first configuration to the second, sealed, configuration. In the illustrated seal apparatus 10, the seal portion 16 is oval in cross-section. The first surface 20a of the seal portion 16 is configured to engage the first component 12. The first surface 20 of the seal portion 16 is offset from the first component 12 in the first configuration and fully or sealingly engages the first component 12 in the second, sealed, configuration. The illustrated receiving portion 18 and the seal portion 16 form a unitary construction. As described above, the second component 14 is configured for coupling to the first component 12. The second component 14 comprises a coupling portion 22, the coupling portion 22 being configured to couple the first component 12 to the second component 14. The coupling portion 22 is configured to couple the second component 14 to the first component 12. In the illustrated seal apparatus 10, the coupling portion 22 is configured for mechanically coupling the second component 14 to the first component 12. The illustrated coupling portion 22 and the first component 12 form a snap-fit connection. In the illustrated seal apparatus 10, the coupling portion 22 takes the form of a male member, in particular having an arrowhead shape in cross-section. Beneficially, the shape of the coupling portion 22 may aid the user in aligning, locating and urging the second component 14 and associated glazing panel 1034 into engagement with the first component 12. Alternatively, or additionally, the shape of the coupling portion 22 may also provide a degree of resistance to removal of the second component 14 from the first component 12. In use, this may beneficially permit the glazing panel 1034 to be held in place without the user having to constantly hold the second component 14 and associated glazing panel 1034 during installation. In this way, the second component 14 and glazing panel 1034 may be clipped into the first component 12, permitting the user to manually adjust the position of the assembly before applying the final push force to reconfigure the seal apparatus 10 into its sealed condition. The flexibility of the coupling portion 22 is provided by the shape of the coupling portion 22, the geometry of the coupling portion 22 and / or the material from which the coupling portion 22 is constructed. The illustrated coupling portion 22 is at least partially constructed from a thermoplastic polymer, e.g. polypropylene, or a thermoplastic elastomer (TPE). The illustrated receiving portion 18, the seal portion 16 and the coupling portion 22 form a unitary construction, the seal portion 16 being interposed between the receiving portion 18 and the coupling portion 22. As described above, the seal apparatus 10 comprises a first component 12 configured for attachment to a window frame or window surround. The flexibility of the first component 12 is provided by the shape of the first component 12, the geometry of the first component 12 and / or the material from which the first component 12 is constructed. The illustrated first component 12 is at least partially constructed from a thermoplastic polymer, e.g. polypropylene, or a thermoplastic elastomer (TPE). Beneficially, the use of a thermoplastic polymer or a thermoplastic elastomer (TPE) facilitates the use of recycled materials in the construction of the seal apparatus 10 and / or recycling of the seal apparatus 10 at the end of its life. As described above, the first component 12 is configured for attachment to a window frame or surround. In the illustrated seal apparatus 10, the first component 12 is attached to the window frame or window surround by an adhesive strip, adhesive tape or the like. However, it will be understood that the first component 12 may be secured by other suitable means. The first component 12 comprises a first, attachment, portion 26, the first portion 26 being configured for attachment to the window frame or surround 32. The illustrated first portion 26 is configured for adhesive attachment to the window frame or surround. Referring now also to Figure 3 of the accompanying drawings, there is shown the seal apparatus 10 adhesively attached to a window frame 32. As described above, the first component 12 is adaptable to a profile of said window frame or surround 32. The first portion 26 is adaptable to the profile of the window frame or surround 32, the adaptability of the illustrated first portion 26 being provided by the shape, the geometry and / or the material from which the first portion 26 is constructed. The illustrated first portion 26 comprises or takes the form of a concave first portion. In use, the concave first portion 26 is adaptable and attaches to the window frame or surround 32, conforming to the profile thereof. The present seal apparatus 10 is particularly beneficial in providing the existing windows of older buildings with single glazing or conventional secondary or tertiary glazing. The adaptability and resultant conformance of the first portion 26 to the window frames of these buildings - the profiles of which are often irregular and vary widely - facilitates the attachment of the seal apparatus 10 to the frames 32. The flexibility of the first portion 26 is provided by the shape of, the geometry of and / or the material from which the first portion 26 is constructed. The illustrated first portion 26 is at least partially constructed from a thermoplastic polymer, e.g. polypropylene, or a thermoplastic elastomer (TPE). As described above, the second component 14 is configured for coupling to the first component 12. The first component 12 comprises a second, coupling, portion 28. The illustrated first portion 26 and the second portion 28 form a unitary construction. The coupling portion 22 is configured to couple the second portion 28 to the second component 14, the second portion 28 being configured to receive the coupling portion 22 at least partially therein. The coupling portion 22 is configured for mechanically coupling the second component 14 to the second portion 28, the illustrated coupling portion 22 and the second portion 28 forming a snap-fit connection. In use, the second portion 28 receives the coupling portion 22 therein, such that the coupling portion 22 and the second portion 28 form a snap-fit connection. Beneficially, the mechanical connection of the first and the second components 12, 14 by means of a snap-fit connection mitigates the need for any complex or expert installation. As such, the labour, costs and duration associated with conventional processes of secondary or tertiary glazing are reduced. The flexibility of the second portion 28 is provided by the shape of, the geometry of and / or the material from which the second portion 28 is constructed. The illustrated second portion 28 is at least partially constructed from a thermoplastic polymer, or a thermoplastic elastomer (TPE). Thus, in the illustrated seal apparatus 10, the receiving portion 18 takes the form of a flexible slot, and forms a unitary construction with the seal portion 16 and the coupling portion 22, each of which is also flexible. The coupling portion 22 and the second portion 28 form a snap-fit connection, the second portion 28 being flexible also. The first portion 26 and the second portion 28 form a unitary construction, the first portion 26 being flexible also. Having adhesively attached the first portion 26 to the window frame such that the first portion 26 conforms to the profile thereof, and reconfigured the seal portion 16 into the second, sealed, configuration, the receiving portion 18 receives the glazing panel therein. Beneficially, the flexibility of the first and second components 12, 14 compensates for any thermal expansion and / or contraction that the glazing panel undergoes whilst installed, reducing and / or mitigating any structural damage to the glazing panel and / or the seal apparatus 10 itself otherwise caused by the thermal expansion and / or contraction. In turn, any reduction in the thermal efficiency of the window to which the seal apparatus 10 is attached otherwise caused by the structural damage as described is reduced and / or mitigated. Referring now also to Figures 4 and 5 of the accompanying drawings, there is shown a secondary glazing system, generally denoted 1000, the system 1000 comprising the seal apparatus 10 and a glazing panel 1034. The illustrated glazing panel 1034 is at least partially constructed from acrylic. Figure 4 shows the components 10, 1034 of the secondary glazing system 1000, and Figure 5 shows an assembly thereof. An alternative seal apparatus, generally denoted 110, is shown in Figure 6 of the accompanying drawings. It shall be understood that the seal apparatus 110 is similar to the seal apparatus 10, and that like components are referenced using like reference numerals, incremented by 100. As shown in Figure 6, the apparatus 110 comprises a first component, generally denoted 112, configured for attachment to a window frame or window surround, wherein the first component 112 is adaptable to a profile of said window frame or surround. In the illustrated seal apparatus 110, the first component 112 is attached to the window frame or window surround by an adhesive strip, adhesive tape or the like. However, it will be understood that the first component 112 may be secured by other suitable means. The apparatus 110 comprises a second component, generally denoted 114, configured for coupling to the first component 112, wherein the second component 114 is configured to receive a glazing panel so as to secure the glazing panel to the window frame or surround on coupling of the second component 114 to the first component 112. The second component 114 comprises a seal portion 116, wherein the seal portion 116 is reconfigurable from a first configuration to a second, sealed, configuration, on coupling the second component 114 to the first component 112, so as to provide a seal between the first component 112 and the second component 114 and thus between the glazing panel and the window frame or surround on coupling of the second component 114 to the first component 112. As shown in Figure 6, second component 114 of the seal apparatus 110 is configured for magnetically coupling to the first component 112. A coupling portion 124 of the second component 114 is configured for magnetically coupling the second component 114 to the first component 112. The illustrated coupling portion 124 comprises or takes the form of a magnetic plate of a first polarity. The coupling portion 124 is configured for magnetically coupling the second component 114 to a second portion 130 of the first component 112. The second portion 130 comprises or takes the form of a magnetic plate of a second polarity. In use, the coupling portion 124 comprises or takes the form of the magnetic plate of the first polarity, and is magnetically coupled to the second portion 130 comprising or taking the form of the magnetic plate of the second polarity. Beneficially, the magnetic connection of the first and the second components 112, 114 mitigates the need for any complex or expert installation. As such, the intensity of labour, costs and duration associated with conventional processes of secondary or tertiary glazing are reduced. The seal portion 116 is compressed to reconfigure the seal portion 116 from the first configuration to the second, sealed, configuration. The seal portion 116 takes the form of a gasket seal member. The seal portion 116 comprises a first, distal, surface 120a and a second, proximal, surface 120b. Whereas in the seal apparatus 10, the seal portion 16 engages the first component 12, in the seal apparatus 110 the seal portion 116 engages another part 121 of the second component 114 in the second, sealed, configuration. A seal is also provided between the coupling portions 124, 130. The illustrated receiving portion 118, seal portion 116 and coupling portion 124 form a unitary construction. The seal portion 116 is interposed between the receiving portion 118 and the coupling portion 124. Thus, in the illustrated seal apparatus 110, receiving portion 118 takes the form of a flexible slot, and forms a unitary construction with the flexible seal portion 116 and the at least partially flexible coupling portion 124. The coupling portion 124 and the second portion 130 form a magnetic connection, the second portion 130 being at least partially flexible also. The first portion 126 and the second portion 130 form a unitary construction, the first portion 126 being flexible also. Having adhesively attached the first portion 126 to the window frame such that the first portion 126 conforms to the profile thereof, and reconfigured the seal portion 116 into the second, sealed, configuration, the receiving portion 118 receives the glazing panel therein. Beneficially, the flexibility of the first and second components 112, 114 compensates for any thermal expansion and / or contraction that the glazing panel undergoes whilst installed, reducing and / or mitigating any structural damage to the glazing panel and / or the seal apparatus 110 itself otherwise caused by the thermal expansion and / or contraction. In turn, any reduction in the thermal efficiency of the window to which the seal apparatus 110 is attached otherwise caused by the structural damage as described is reduced and / or mitigated. An alternative seal apparatus, generally denoted 210, for use in a secondary glazing system (2000, Figures 10 &11) is shown in Figures 7 and 8 of the accompanying drawings. It shall be understood that the seal apparatus 210 is similar to the seal apparatus 10, and that like components are referenced using like reference numerals, incremented by 200. As shown, the apparatus 210 comprises a first component, generally denoted 212, configured for attachment to a window frame or window surround (232, Figure 9), wherein the first component 212 is adaptable to a profile of said window frame or surround 232. The apparatus 210 comprises a second component, generally denoted 214, configured for coupling to the first component 212, wherein the second component 214 is configured to receive a glazing panel (2034, Figures 10 &11) so as to secure the glazing panel 2034 to the window frame or surround 232 on coupling of the second component 214 to the first component 212. The second component 214 comprises a seal portion 216, wherein the seal portion 216 is reconfigurable from a first configuration to a second, sealed, configuration, on coupling the second component 214 to the first component 212, so as to provide a seal between the first component 212 and the second component 214 and thus between the glazing panel 2034 and the window frame or surround 232 on coupling of the second component 214 to the first component 212. In use, the first component 212 is attached to the window frame or surround 232 and conforms to the profile thereof. On coupling the second component 214 to the first component 212, the seal portion 216 is reconfigured from the first configuration to the second, sealed, configuration. In some instances, the action of applying a push force in order to couple the first component 212 to the second component 214 reconfigures the seal portion 216 from the first configuration to the second, sealed, configuration. In other instances, a first push force may be applied in order to couple the first component 212 to the second component 214, and a second push force may be applied in order to reconfigure the seal portion 216 from the first configuration to the second, sealed configuration. In order to remove the apparatus 210 from the window frame or surround 232, a pull force is applied to the second component 214 such that the seal portion 216 is reconfigured from the second, sealed, configuration to the first configuration. Beneficially, the seal apparatus 210 facilitates the provision of an existing window with an additional glazing panel, i.e. facilitates the process of secondary or tertiary glazing. As a result, the thermal efficiency of the window and the building to which the window belongs is improved, as less heat is lost to the environment. This increase in thermal efficiency leads to a decrease in the level of energy wasted in heating, or where applicable cooling, the building, reducing the building’s environmental impact, as well as the costs required to heat, or where applicable cool, the building. The additional glazing panel also acts to reduce the level of noise transmission through the window. Moreover, the attachability and resultant conformance of the adaptable first component 212 to the profile of the existing window frame or surround, as well as the reconfiguration of the seal portion 216 into the second, sealed, configuration by means of a push force and into the first configuration by means of a pull force, mitigate the need for any complex or expert installation. As such, the labour, costs and duration associated with conventional processes of secondary or tertiary glazing are reduced. The present seal apparatus 210 is particularly beneficial in older buildings with secondary or tertiary glazing. The adaptability and resultant conformance of the first component 212 to the window frames of these buildings - the profiles of which are often irregular and vary widely - facilitates the attachment of the seal apparatus 210 to the frames or surrounds. As described above, the seal apparatus 210 comprises a second component 214 configured for coupling to the first component. The flexibility of the illustrated second component 214 is provided by the shape of the second component 214, the geometry of the second component 214 and / or the material from which the second component 214 is constructed. The illustrated second component 214 is at least partially constructed from a thermoplastic polymer, e.g. polypropylene, or a thermoplastic elastomer (TPE). Beneficially, the use of a thermoplastic polymer or a thermoplastic elastomer (TPE) facilitates the use of recycled materials in the construction of the seal apparatus 210 and / or recycling of the seal apparatus 210 at the end of its life. As described above, the second component 214 is configured to receive a glazing panel 2034. The second component 214 comprises a receiving portion 218, the receiving portion 218 being configured to receive the glazing panel 2034. The receiving portion 218 defines a slot. The illustrated slot is u-shaped or substantially u-shaped. However, it will be understood that the receiving portion 218 may comprise other suitable forms. The flexibility of the illustrated receiving portion 218 is provided by the shape of the receiving portion 218, the geometry of the receiving portion 218 and / or the material from which the receiving portion 218 is constructed. The illustrated receiving portion 218 is at least partially constructed from a thermoplastic polymer, e.g. polypropylene, or a thermoplastic elastomer (TPE). As shown, the receiving portion 218 comprises a first wall portion 218a, a second wall portion 218b and a base portion 218c. In the illustrated receiving portion 218, the first wall portion 218a, second wall portion 218b and base portion 218c are integrally formed. In the illustrated receiving portion 218, the first wall portion 218a and the second wall portion 218b are parallel or substantially parallel to each other. As described above, the second component 214 comprises a seal portion 216, wherein the seal portion 216 is reconfigurable from a first configuration to a second, sealed, configuration. The seal portion 216 is compressed to reconfigure the seal portion 216 from the first configuration to the second, sealed, configuration. The seal portion 216 takes the form of a gasket seal member. The seal portion 216 comprises a first, distal, surface 220a and a second, proximal, surface 220b. The first surface 220a may be defined as an upper surface or distal surface since it is distal / faces away from the user in use. However, it will be understood that the first surface 220a, by virtue of location of the seal apparatus 210 at any side of the window, may be in any orientation. The second surface may be defined as a lower or proximal surface since it is proximal / faces towards the user in use. However, it will be understood that the second surface 220b, by virtue of location of the seal apparatus 210 at any side of the window, may be in any orientation. In the illustrated seal apparatus 210, the first, distal, surface 220a and the second, proximal, surface 20b form a single piece. The first and second surfaces 220a, 220b of the seal portion 216 define respective lips which move towards each other to reconfigure the seal portion 216 from the first configuration to the second, sealed, configuration. In the illustrated seal apparatus 210, the seal portion 216 is oval in cross-section. The first surface 220a of the seal portion 216 is configured to engage the first component 212. The first surface 220a of the seal portion 216 is offset from the first component 212 in the first configuration and fully or sealingly engages the first component 212 in the second, sealed, configuration. The illustrated receiving portion 218 and the seal portion 216 form a unitary construction. The flexibility of the seal portion 216 is provided by the shape of the seal portion 216, the geometry of the seal portion 216 and / or the material from which the seal portion 216 is constructed. The illustrated seal portion 216 is constructed from a thermoplastic polymer, e.g. polypropylene, or a thermoplastic elastomer (TPE). As described above, the second component 214 is configured for coupling to the first component 212. The second component 214 comprises a coupling portion 222, the coupling portion 222 being configured to couple the first component 212 to the second component 214. The coupling portion 222 is configured for mechanically coupling the second component 214 to the first component 212. The illustrated coupling portion 222 and the first component 212 form a snap-fit connection. In the illustrated seal apparatus 210, the coupling portion 222 takes the form of a male member, in particular having an arrowhead shape in cross-section. Beneficially, the shape of the coupling portion 222 may aid the user in aligning, locating and urging the second component 214 and associated glazing panel 2034 into engagement with the first component 212. Alternatively, or additionally, the shape of the coupling portion 222 may also provide a degree of resistance to removal of the second component 214 from the first component 212. In use, this may beneficially permit the glazing panel 2034 to be held in place without the user having to constantly hold the second component 214 and associated glazing panel 2034 during installation. In this way, the second component 214 and glazing panel 2034 may be clipped into the first component 212, permitting the user to manually adjust the position of the assembly before applying the final push force to reconfigure the seal apparatus 210 into its sealed condition. The flexibility of the coupling portion 222 is provided by the shape of the coupling portion 222, the geometry of the coupling portion 222 and / or the material from which the coupling portion 222 is constructed. The illustrated coupling portion 222 is at least partially constructed from a thermoplastic polymer, e.g. polypropylene, or a thermoplastic elastomer (TPE). The illustrated receiving portion 218, the seal portion 216 and the coupling portion 222 form a unitary construction, the seal portion 216 being interposed between the receiving portion 218 and the coupling portion 222. As described above, the seal apparatus 210 comprises a first component 212. The flexibility of the first component 212 is provided by the shape of the first component 212, the geometry of the first component 212 and / or the material from which the first component 212 is constructed. The illustrated first component 212 is at least partially constructed from a thermoplastic polymer, e.g. polypropylene, or a thermoplastic elastomer (TPE). Beneficially, the use of a thermoplastic polymer or a thermoplastic elastomer (TPE) facilitates the use of recycled materials in the construction of the seal apparatus 210 and / or recycling of the seal apparatus 210 at the end of its life. As described above, the first component 212 is configured for attachment to a window frame or surround 232. The first component 212 comprises a first, attachment, portion 226, the first portion 226 being configured for attachment to the window frame or surround 232. The illustrated first portion 226 is configured for magnetic attachment to the window frame or surround 232. The first portion 226 is configured for magnetic attachment to a magnetic strip, generally denoted 236, attached to the window frame or surround 232, the magnetic strip 236 being adhesively attached to the window frame or surround 232. As described above, the first component 212 is adaptable to a profile of said window frame or surround 232. The first portion 226 is adaptable to the profile of the window frame or surround 232, the adaptability of the illustrated first portion 226 being provided by the shape, the geometry and the material from which the first portion 226 is constructed. The illustrated first portion 226 comprises or takes the form of a concave first portion. In use, the concave first portion 226 is adaptable and attaches to the window frame or surround 232, conforming to the profile thereof. The seal apparatus 210 is particularly beneficial in providing the existing windows of older buildings with secondary or tertiary glazing. The adaptability and resultant conformance of the first portion 226 to the window frames of these buildings -the profiles of which are often irregular and vary widely - facilitates the attachment of the seal apparatus 210 to the frames 232. The flexibility of the first portion 226 is provided by the shape of, the geometry of and / or the material from which the first portion 226 is constructed. The illustrated first portion 226 is at least partially constructed from a thermoplastic polymer, e.g. polypropylene, or a thermoplastic elastomer (TPE). As described above, the second component 214 is configured for coupling to the first component 212. The first component 212 comprises a second, coupling, portion 228, the second portion 228 being coupled to the first portion 226. The illustrated first portion 226 and the second portion 228 form a unitary construction. The coupling portion 222 is configured to couple the second portion 228 to the second component 214, the second portion 228 being configured to receive the coupling portion 222 at least partially therein. The coupling portion 222 is configured for mechanically coupling the second component 214 to the second portion 228, the illustrated coupling portion 222 and the second portion 228 forming a snap-fit connection. In use, the second portion 228 receives the coupling portion 222 therein, such that the coupling portion 222 and the second portion 228 form a snap-fit connection. Beneficially, the mechanical connection of the first and the second components 212, 214 by means of a snap-fit connection mitigates the need for any complex or expert installation. As such, the labour, costs and duration associated with conventional processes of secondary or tertiary glazing are reduced. The flexibility of the second portion 228 is provided by the shape of, the geometry of and / or the material from which the second portion 228 is constructed. The illustrated second portion 228 is at least partially constructed from a thermoplastic polymer, or a thermoplastic elastomer (TPE). Thus, in the illustrated seal apparatus 210, the receiving portion 218 takes the form of a flexible slot, and forms a unitary construction with the seal portion 216 and the coupling portion 222, each of which is also flexible. The coupling portion 222 and the second portion 228 form a snap-fit connection, the second portion 228 being flexible also. The first portion 226 and the second portion 228 form a unitary construction, the first portion 226 being flexible also. Having adhesively attached the first portion 226 to the window frame such that the first portion 226 conforms to the profile thereof, and reconfigured the seal portion 216 into the second, sealed, configuration, the receiving portion 218 receives the glazing panel therein. Beneficially, the flexibility of the first and second components 212, 214 compensates for any thermal expansion and / or contraction that the glazing panel undergoes whilst installed, reducing and / or mitigating any structural damage to the glazing panel and / or the seal apparatus 210 itself otherwise caused by the thermal expansion and / or contraction. In turn, any reduction in the thermal efficiency of the window to which the seal apparatus 210 is attached otherwise caused by the structural damage as described is reduced and / or mitigated. Referring now also to Figures 10 and 11 of the accompanying drawings, there is shown a secondary glazing system, generally denoted 2000, the system 2000 comprising the seal apparatus 210 and a glazing panel 2034. The system 2000 comprises a magnetic strip 2040 configured for attachment to the window frame or surround 232, the magnetic strip 2040 being adhesively attached to the window frame or surround 232. In use, the magnetic strip 2040 is adhesively attached to the window frame or surround 232. The receiving portion 218 of the seal apparatus 210 is magnetically attached to the magnetic strip 2040 adhesively attached to the window frame or surround 232. Figure 10 shows the components 210, 2034, 2040 of the secondary glazing system 2000, and Figure 11 shows an assembly thereof. An alternative seal apparatus, generally denoted 310, is shown in Figure 12 of the accompanying drawings. It shall be understood that the seal apparatus 310 is similar to the seal apparatus 210, and that like components are referenced using like reference numerals. As shown in Figure 12, the apparatus 310 comprises a first component, generally denoted 312, configured for attachment to a window frame or window surround, wherein the first component 312 is adaptable to a profile of said window frame or surround. The apparatus 310 comprises a second component, generally denoted 314, configured for coupling to the first component 312, wherein the second component 314 is configured to receive a glazing panel so as to secure the glazing panel to the window frame or surround on coupling of the second component 314 to the first component 312. The second component 314 comprises a seal portion 316, wherein the seal portion 316 is reconfigurable from a first configuration to a second, sealed, configuration, on coupling the second component 314 to the first component 312, so as to provide a seal between the first component 312 and the second component 314 and thus between the glazing panel and the window frame or surround on coupling of the second component 314 to the first component 312. As described above, the first component 312 is configured for attachment to a window frame or surround. In the illustrated seal apparatus 310, the first component 312 is magnetically attached to the window frame or window surround by a magnetic strip, magnetic tape or the like. As shown in Figure 6, second component 314 of the seal apparatus 310 is configured for magnetically coupling to the first component 312. A coupling portion 324 of the second component 314 is configured for magnetically coupling the second component 314 to the first component 312. The illustrated coupling portion 324 comprises or takes the form of a magnetic plate of a first polarity. The coupling portion 324 is configured for magnetically coupling the second component 314 to a second portion 330 of the first component 312. The second portion 330 comprises or takes the form of a magnetic plate of a second polarity. In use, the coupling portion 324 comprises or takes the form of the magnetic plate of the first polarity, and is magnetically coupled to the second portion 330 comprising or taking the form of the magnetic plate of the second polarity. Beneficially, the magnetic connection of the first and the second components 312, 314 mitigates the need for any complex or expert installation. As such, the intensity of labour, costs and duration associated with conventional processes of secondary or tertiary glazing are reduced. The seal portion 316 is compressed to reconfigure the seal portion 316 from the first configuration to the second, sealed, configuration. The seal portion 316 takes the form of a gasket seal member. The seal portion 316 comprises a first, distal, surface 320a and a second, proximal, surface 320b. Whereas in the seal apparatus 10, the seal portion 16 engages the first component 12, in the seal apparatus 310 the seal portion 316 engages another part 321 of the second component 314 in the second, sealed, configuration. A seal is also provided between the coupling portions 324, 330. The illustrated receiving portion 318, seal portion 316 and coupling portion 324 form a unitary construction. The seal portion 316 is interposed between the receiving portion 318 and the coupling portion 324. Thus, in the seal apparatus 310, the receiving portion 318 takes the form of a flexible slot, and forms a unitary construction with the flexible seal portion 316 and the at least partially flexible coupling portion 334. The coupling portion 334 and the second portion 338 form a magnetic connection, the second portion 338 being at least partially flexible also. The first portion 326 and the second portion 338 form a unitary construction, the first portion 326 being flexible also. Having magnetically attached the first portion 326 to the window frame such that the first portion 326 conforms to the profile thereof, and reconfigured the seal portion 316 into the second, sealed, configuration, the receiving portion 318 receives the glazing panel therein. Beneficially, the flexibility of the first and second components 312, 314 compensates for any thermal expansion and / or contraction that the glazing panel undergoes whilst installed, reducing and / or mitigating any structural damage to the glazing panel and / or the seal apparatus 310 itself otherwise caused by the thermal expansion and / or contraction. In turn, any reduction in the thermal efficiency of the window to which the seal apparatus 310 is attached otherwise caused by the structural damage as described is reduced and / or mitigated. Various modifications may be made without departing from the scope of the claims. For example, Figure 13 shows an alternative configuration of the first component 412 and Figure 14 shows an alternative configuration of the second component 414. As shown in Figure 13, whereas in the seal apparatus 10 of Figure 1 the first, attachment, portion 26 is semi-oval in cross section, the first portion 426 of first component 412 defines a semi-circular curve in cross-section. As shown in Figure 14, whereas in the seal apparatus 10 of Figure 1 the coupling portion 22 has an arrowhead shape, the coupling portion 422 has a rounded, semi-oval, shape in cross-section. As also shown in Figure 14, whereas in the seal apparatus 10 of Figure 1 the first wall portion 18a and the second wall portion 18b are parallel or substantially parallel to each other, in the receiving portion 418 the first wall portion 418a is oriented at an angle to the second wall portion 418b. The receiving portion 418 is resiliently biased with the second wall portion 418b and the second wall portion defining said angle. Beneficially, this means that the receiving portion 418 may facilitate the easy location of a glazing panel, such as 1034, 2034, but grips the glazing panel 1034, 2034 once located therein. Alternatively, or additionally, the resilient bias may beneficially accommodate thermal expansion and / or contraction, in use, while maintaining sealing performance.

Claims

1. A seal apparatus for use in a secondary glazing system, the apparatus comprising:a first component configured for attachment to a window frame or window surround, wherein the first component is adaptable to a profile of said window frame or surround; anda second component configured for coupling to the first component,wherein the second component is configured to receive a glazing panel so as to secure the glazing panel to the window frame or surround on coupling of the second component to the first component; andwherein the second component comprises a seal portion,wherein the seal portion is reconfigurable from a first configuration to a second, sealed, configuration, on coupling the second component to the first component, so as to provide a seal between the first component and the second component and thus between the glazing panel and the window frame or surround on coupling of the second component to the first component.

2. The seal apparatus of claim 1, wherein the second component comprises a receiving portion, the receiving portion being configured to receive the glazing panel.

3. The seal apparatus of claim 1 or 2, wherein the second component comprises a coupling portion.

4. The seal apparatus of claim 3, wherein the coupling portion is configured for mechanically coupling the second component to the first component.

5. The seal apparatus of claim 4, wherein the coupling portion and the first component form a snap-fit connection.

6. The seal apparatus of claim 3, 4 or 5, wherein the coupling portion is configured for magnetically coupling the second component to the first component.

7. The seal apparatus of claim 6, wherein the coupling portion comprises or takes the form of a magnetic plate of a first polarity.

8. The seal apparatus of any of claims 3 to 7, when dependent on claim 2, wherein the receiving portion, the seal portion and the coupling portion form a unitary construction, the seal portion being interposed between the receiving portion and the coupling portion.

9. The seal apparatus of any preceding claim, wherein the first component comprises a first, attachment, portion, the first portion being configured for attachment to the window frame or surround.

10. The seal apparatus of claim 9, wherein the first portion is configured for adhesive attachment to the window frame or surround.

11. The seal apparatus of claim 9, wherein the first portion is configured for magnetic attachment to the window frame or surround.

12. The seal apparatus of claim 11, wherein the first potion is configured for magnetic attachment to a magnetic strip attached to the window frame or surround, the magnetic strip being adhesively attached to the window frame or surround.

13. The seal apparatus of any of claims 9 to 12, wherein the first portion is adaptable to the profile of the window frame or surround.

14. The seal apparatus of any of claims 8 to 13, wherein the first portion comprises or takes the form of a concave first portion.

15. The seal apparatus of any preceding claim, wherein the first component comprises a second portion.

16. The seal apparatus of claim 15, when dependent on claim 9, wherein the first portion and the second portion form a unitary construction.

17. The seal apparatus of claim 15 or 16, when dependent on claim 3, wherein the coupling portion is configured for mechanically coupling the second component to the second portion.

18. The seal apparatus of claim 17, wherein the coupling portion and the second portion form a snap-fit connection.

19. The seal apparatus of claim 15 or 16, when dependent on claim 3, wherein the coupling portion is configured for magnetically coupling the second component to the second portion.

20. The seal apparatus of claim 19, wherein the second portion comprises or takes the form of a magnetic plate of a second polarity.

21. The seal apparatus of any preceding claim, wherein the at least one of the first component and the second component is at least partially constructed from a thermoplastic elastomer or thermoplastic polymer, e.g. polypropylene.

22. The seal apparatus of any preceding claim, wherein at least one of the first component and the second component comprise or takes the form of an elongate member or strip, such as an extrusion.

23. A secondary glazing system, the system comprising:one or more seal apparatuses according any of claims 1 to 22; and a glazing panel.

24. The system of claim 23, wherein the system comprises one or more magnetic strips configured for attachment to the window frame or surround.

25. A method of installing secondary glazing using the seal apparatus of any of claims 1 to 22 or the secondary glazing system of claim 23 or 24.s

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