EP1639211A1 - Improvements in or relating to cappings for use in conservatory roof construction - Google Patents

Improvements in or relating to cappings for use in conservatory roof construction

Info

Publication number
EP1639211A1
EP1639211A1 EP04743180A EP04743180A EP1639211A1 EP 1639211 A1 EP1639211 A1 EP 1639211A1 EP 04743180 A EP04743180 A EP 04743180A EP 04743180 A EP04743180 A EP 04743180A EP 1639211 A1 EP1639211 A1 EP 1639211A1
Authority
EP
European Patent Office
Prior art keywords
capping
glazing bar
combination
stem
chambers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04743180A
Other languages
German (de)
French (fr)
Inventor
Christopher Richardson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ultraframe UK Ltd
Original Assignee
Ultraframe UK Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB0315328A external-priority patent/GB0315328D0/en
Priority claimed from GB0315476A external-priority patent/GB0315476D0/en
Application filed by Ultraframe UK Ltd filed Critical Ultraframe UK Ltd
Publication of EP1639211A1 publication Critical patent/EP1639211A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/02—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant
    • E04D3/06—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of glass or other translucent material; Fixing means therefor
    • E04D3/08—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of glass or other translucent material; Fixing means therefor with metal glazing bars
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/02—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant
    • E04D3/06—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of glass or other translucent material; Fixing means therefor
    • E04D3/08—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of glass or other translucent material; Fixing means therefor with metal glazing bars
    • E04D2003/0818—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of glass or other translucent material; Fixing means therefor with metal glazing bars the supporting section of the glazing bar consisting of several parts, e.g. compound sections
    • E04D2003/0825—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of glass or other translucent material; Fixing means therefor with metal glazing bars the supporting section of the glazing bar consisting of several parts, e.g. compound sections the metal section covered by parts of other material
    • E04D2003/0831—Glazing gaskets of particular shape
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/02—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant
    • E04D3/06—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of glass or other translucent material; Fixing means therefor
    • E04D3/08—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of glass or other translucent material; Fixing means therefor with metal glazing bars
    • E04D2003/0843—Clamping of the sheets or glass panes to the glazing bars by means of covering strips
    • E04D2003/085—Clamping of the sheets or glass panes to the glazing bars by means of covering strips locked by snap action

Definitions

  • a typical glazing bar comprises an extruded aluminium elongate member having an upstanding central web and a cross-bar in the form of say transverse side arms depending from each side thereof to support glazing panels to either side thereof.
  • the glazing bar is provided with upper and lower cappings.
  • the cappings are made of plastics having relatively thin single skin walls.
  • the upper and lower capping have gaskets along edges thereof between which roof panels, usually glazing panels, are to be retained, and means for locating the cappings on the bar.
  • the flexibility of the single skin aids sealing of the cappings with the roof panel,, but has disadvantageous thermal properties.
  • the single skin open profiles can be vulnerable to distortion under certain circumstances, for example, during transit and handling and sometimes under the influence of solar radiation, especially in the case of dark colours.
  • aluminium cappings have been used but aluminium has a poor thermal performance relative to plastics material.
  • Cappings of single wall plastics material are also used for other structural members of a conservatory roof, such as ridge beams and in valley constructions, where similar problems exist due to exposure of the cappings to solar radiation.
  • the present invention aims to provide a solution. According to the present invention there is provided a capping of plastics material for location on a structural member of a conservatory roof, wherein the capping is twin-walled and has means for location thereof on the structural member.
  • the structural member may be, for example, a glazing bar, a ridge beam or of a valley construction.
  • the invention provides a glazing bar and an upper capping therefor of plastics material and means for locating the capping on the glazing bar, the glazing bar having a stem and lateral flange means for supporting roofing panels directly or indirectly, and wherein the upper capping comprises at least a twin wall construction.
  • multiple walls with spacing webs may be used.
  • a twin wall construction is employed having inner and outer walls having a plurality of spaced webs extending therebetween to divide the twin wall construction into a plurality of chambers. Alternatively additional walls can be added to form further chambers.
  • a capping of the invention has a top and two depending sides.
  • the depending sides have a gasket along edges thereof for sealing on roofing panels retained on the glazing bar.
  • the edges thereof extend between the ends of the inner and outer walls of the capping.
  • the gasket conveniently forms part of said edge spanning the gap between the ends of the inner and outer walls.
  • the gasket preferably includes a body connecting with the capping and one or more lips, which branch from the body and engage the roofing panel. More particularly the inner wall terminates at a greater distance from the roof panel than the outer wall so that the gasket is at least partially concealed by the outer wall.
  • the glazing panel further comprises a lower capping, which is of twin wall construction, although it could have more than two walls.
  • a lower capping which is of twin wall construction, although it could have more than two walls.
  • the twin skin construction with or without foam, serves to provide improved thermal insulation compared with the known single wall cappings.
  • the lower capping includes means for locating it with respect to the glazing bar. More particularly, end edges of the lower capping carry respective gaskets to engage with the underside of the roofing panels.
  • another preferred embodiment of the invention provides a glazing bar and an upper capping therefor of plastics material and means for locating the capping on the glazing bar, and wherein the glazing bar has a stem and lateral flange means for supporting roofing panels, and wherein the space within the capping between the stem and the roofing panel is divided into at least two chambers. More preferably, the space is divided into inner and outer chambers. The division may be by projections formed on the stem and extending towards the inside wall of the capping. More preferably, the division is formed by projections that depend from the inside of the capping.
  • the projections extend up to said stem.
  • the projection can stop short of the stem and still give advantageous thermal barrier effects.
  • the division branches from the stem it can stop short of the capping. More preferably the dividing wall or projection is arcuate as seen in cross-section.
  • a roof construction for use in constructing conservatory roofs comprises an aluminium glazing bar 30 having a central upstand 32 and lateral side supports 34, 36 for roofing panels 38, 40.
  • an upper capping 42 of plastics material comprising a twin wall construction having inner and outer walls 44,46 and a plurality of spaced webs 48 extending therebetween to define air chambers 47.
  • One or more intermediate walls may be provided to further enhance the thermal insulation properties.
  • the inner wall has a pair of flared legs 52, 54 with hooked ends to engage with a recess 56 in the central upstand to secure the capping with respect thereto in a manner that is well known in the art. Any other convenient means of securing the capping to the glazing bar may be used.
  • the capping in the embodiment of Figure 1 is generally semi-circular, as viewed in cross section, but it may take any other desired shape.
  • the capping provides depending sides 58 that terminate in edges that are provided with gaskets 60. More particularly in the preferred embodiment, as shown in greater detail in Figure 2, the inner and outer walls 44,46 terminate with spaced apart end regions 62, 64 and the gap therebetween is bridged by a body part 66 of the gasket 60.
  • the gasket further comprises at least one lip seal, two in the illustrated embodiment that are directed in opposite directions for the body connection, and that engage with the roofing panel.
  • the gasket is made from a suitable sealing material that exhibits the desired resilience to provide a good seal with the roofing panel. Both the body part 66 and the lip elements 68, 70 will flex as necessary to provide the seal.
  • the flexing of the body part compensates for the reduced flex exhibited by the multi skin capping construction.
  • the inner and outer end regions are spaced by different amounts from the roofing panel. More particularly, the inner end region 62 is disposed a greater distance from the roofing panel than the outer end region 64. Thus the line between the ends as inclined relative to the roofing panel rather than parallel thereto. As mentioned above, this is advantageous, because it enables the gasket to be at least partially concealed by the outer walls.
  • the gasket may be a separate component from the capping, but preferably it is formed integrally with it. Conveniently it is bonded in place. It may be formed as a co-extrusion, or as a post-extrusion.
  • the construction of Figure 1 further comprises a lower capping 80, which is co-operable with the glazing bar 30.
  • the lower capping is generally U-shaped with a base 88 and two upstanding side walls 90, although any other desired shape may be utilised.
  • the lower capping has at least inner and outer walls 82,84.
  • a plurality of webs 86 extend therebetween to define a plurality of air chambers and to space apart the inner and outer walls. Intermediate walls may be provided as with the outer cappings.
  • the respective ends of the side walls are provided with gaskets 92,94 that provide sealing engagement with the underside of the roofing panels 38,40.
  • the gasket has a lip 90 that is interposed between a support limb 37 of the glazing bar and the roofing panel.
  • a further lip 98 extends in an outward direction.
  • the gasket 92 is preferably formed integrally with the lower capping. It may be bonded thereto as part of the extrusion process of the lower capping or as a post extrusion process.
  • FIG 3 shows an alternative embodiment of capping and glazing bar, but which shares many of the features of the embodiment of figure 2 and which are identified by corresponding reference numerals and to which the foregoing description applies.
  • the lower capping is identical to that of Figure 1.
  • the upper capping has a different cross sectional shape. However, it is also to be noted that the space within the upper capping is divided by a protrusion 100, which in the illustrated embodiment depends from the inner wall 44 of the capping and extends up to the stem 32 of the glazing bar.
  • FIG. 3 also illustrates how the cavities formed by the multi-wall construction of the upper and/or lower cappings may be either filled with an insulation material, such as foamed PVC, as shown at 106, or have the insulation material applied to either wall of a cavity, as shown at 108a, 108b to provide an insulating lining.
  • an insulation material such as foamed PVC
  • the insulation is only shown in some of the cavities, but it will be understood that in practice, where provided, it will usually be provided to the capping as a whole, e.g. to all the cavities, or to line all of one skin.
  • the presence of the insulating foam may avoid the need for the dividing webs 48,86.
  • the capping can be formed as a sandwich comprising skins of plastics sandwiching the foamed insulation layer therebetween.
  • the invention has been described with reference to cappings for glazing bars, it will be appreciated that the invention may also be applied to other plastics cappings used in conservatory roof construction, such as cappings for ridge beams and for valley constructions and especially those in positions exposed to direct sunlight.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Building Environments (AREA)

Abstract

A glazing bar (30) and an upper capping (42) therefor and means for locating the capping on the glazing bar, the glazing bar having a stem (32) and lateral flange means (34, 36) for supporting roofing panels directly or indirectly, and wherein the upper capping comprises at least a twin wall (44,46) construction.

Description

Improvements in or relating to cappings for use in conservatory roof construction.
DESCRIPTION
The present invention relates to cappings for use in conservatory roof construction. A typical glazing bar comprises an extruded aluminium elongate member having an upstanding central web and a cross-bar in the form of say transverse side arms depending from each side thereof to support glazing panels to either side thereof. The glazing bar is provided with upper and lower cappings. The cappings are made of plastics having relatively thin single skin walls. In one known construction the upper and lower capping have gaskets along edges thereof between which roof panels, usually glazing panels, are to be retained, and means for locating the cappings on the bar. The flexibility of the single skin aids sealing of the cappings with the roof panel,, but has disadvantageous thermal properties. In addition the single skin open profiles can be vulnerable to distortion under certain circumstances, for example, during transit and handling and sometimes under the influence of solar radiation, especially in the case of dark colours. To deal with the problem of distortion aluminium cappings have been used but aluminium has a poor thermal performance relative to plastics material. Cappings of single wall plastics material are also used for other structural members of a conservatory roof, such as ridge beams and in valley constructions, where similar problems exist due to exposure of the cappings to solar radiation. The present invention aims to provide a solution. According to the present invention there is provided a capping of plastics material for location on a structural member of a conservatory roof, wherein the capping is twin-walled and has means for location thereof on the structural member. The structural member may be, for example, a glazing bar, a ridge beam or of a valley construction. In one preferred embodiment the invention provides a glazing bar and an upper capping therefor of plastics material and means for locating the capping on the glazing bar, the glazing bar having a stem and lateral flange means for supporting roofing panels directly or indirectly, and wherein the upper capping comprises at least a twin wall construction. For cappings of the invention, multiple walls with spacing webs may be used. Conveniently a twin wall construction is employed having inner and outer walls having a plurality of spaced webs extending therebetween to divide the twin wall construction into a plurality of chambers. Alternatively additional walls can be added to form further chambers. Insulation material, such as foamed plastics materials, for example of PVC or other suitable materials may, be added to the walls or to fill the chambers for enhanced thermal effects. More usually a capping of the invention has a top and two depending sides. The depending sides have a gasket along edges thereof for sealing on roofing panels retained on the glazing bar. The edges thereof extend between the ends of the inner and outer walls of the capping. The gasket conveniently forms part of said edge spanning the gap between the ends of the inner and outer walls. The gasket preferably includes a body connecting with the capping and one or more lips, which branch from the body and engage the roofing panel. More particularly the inner wall terminates at a greater distance from the roof panel than the outer wall so that the gasket is at least partially concealed by the outer wall. More preferably, the glazing panel further comprises a lower capping, which is of twin wall construction, although it could have more than two walls. As with the upper capping web elements between the inner and outer walls define a plurality chambers. The twin skin construction, with or without foam, serves to provide improved thermal insulation compared with the known single wall cappings. The lower capping includes means for locating it with respect to the glazing bar. More particularly, end edges of the lower capping carry respective gaskets to engage with the underside of the roofing panels. When the upper capping is in place a duct is formed underneath it, between it and the roofing panels. More correctly two ducts are formed, one each side of the glazing bar upstand. Those ducts form a useful insulating chamber, however it has been found that the thermal insulating properties may be further enhanced if the duct is sub-divided. Accordingly, another preferred embodiment of the invention provides a glazing bar and an upper capping therefor of plastics material and means for locating the capping on the glazing bar, and wherein the glazing bar has a stem and lateral flange means for supporting roofing panels, and wherein the space within the capping between the stem and the roofing panel is divided into at least two chambers. More preferably, the space is divided into inner and outer chambers. The division may be by projections formed on the stem and extending towards the inside wall of the capping. More preferably, the division is formed by projections that depend from the inside of the capping. Preferably the projections extend up to said stem. However, it is not essential that the projection make physical contact with the stem. It can stop short of the stem and still give advantageous thermal barrier effects. Where the division branches from the stem it can stop short of the capping. More preferably the dividing wall or projection is arcuate as seen in cross-section. The various aspects of the invention will now be described further hereinafter, by way of example only, with reference to the accompany drawings; in which:- Figure 1 is a cross-section through a roof construction embodying the glazing bar and capping according to one embodiment of the invention, Figure 2 is an enlarged view of the gasket of the upper capping accordingly to one embodiment of the invention, and Figure 3 is a cross-section through a roof construction embodying a glazing bar and capping according to another embodiment of the invention. Referring firstly to Figures 1 and 2, a roof construction for use in constructing conservatory roofs comprises an aluminium glazing bar 30 having a central upstand 32 and lateral side supports 34, 36 for roofing panels 38, 40. It further comprises an upper capping 42 of plastics material comprising a twin wall construction having inner and outer walls 44,46 and a plurality of spaced webs 48 extending therebetween to define air chambers 47. One or more intermediate walls may be provided to further enhance the thermal insulation properties. The inner wall has a pair of flared legs 52, 54 with hooked ends to engage with a recess 56 in the central upstand to secure the capping with respect thereto in a manner that is well known in the art. Any other convenient means of securing the capping to the glazing bar may be used. The capping in the embodiment of Figure 1 is generally semi-circular, as viewed in cross section, but it may take any other desired shape. However, it is to be noted that the capping provides depending sides 58 that terminate in edges that are provided with gaskets 60. More particularly in the preferred embodiment, as shown in greater detail in Figure 2, the inner and outer walls 44,46 terminate with spaced apart end regions 62, 64 and the gap therebetween is bridged by a body part 66 of the gasket 60. The gasket further comprises at least one lip seal, two in the illustrated embodiment that are directed in opposite directions for the body connection, and that engage with the roofing panel. The gasket is made from a suitable sealing material that exhibits the desired resilience to provide a good seal with the roofing panel. Both the body part 66 and the lip elements 68, 70 will flex as necessary to provide the seal. The flexing of the body part compensates for the reduced flex exhibited by the multi skin capping construction. It will be noted that the inner and outer end regions are spaced by different amounts from the roofing panel. More particularly, the inner end region 62 is disposed a greater distance from the roofing panel than the outer end region 64. Thus the line between the ends as inclined relative to the roofing panel rather than parallel thereto. As mentioned above, this is advantageous, because it enables the gasket to be at least partially concealed by the outer walls. The gasket may be a separate component from the capping, but preferably it is formed integrally with it. Conveniently it is bonded in place. It may be formed as a co-extrusion, or as a post-extrusion. The construction of Figure 1 further comprises a lower capping 80, which is co-operable with the glazing bar 30. The lower capping is generally U-shaped with a base 88 and two upstanding side walls 90, although any other desired shape may be utilised. As with the upper capping, the lower capping has at least inner and outer walls 82,84. A plurality of webs 86 extend therebetween to define a plurality of air chambers and to space apart the inner and outer walls. Intermediate walls may be provided as with the outer cappings. The respective ends of the side walls are provided with gaskets 92,94 that provide sealing engagement with the underside of the roofing panels 38,40. The gasket has a lip 90 that is interposed between a support limb 37 of the glazing bar and the roofing panel. A further lip 98 extends in an outward direction. The gasket 92 is preferably formed integrally with the lower capping. It may be bonded thereto as part of the extrusion process of the lower capping or as a post extrusion process. Referring now to Figure 3, this shows an alternative embodiment of capping and glazing bar, but which shares many of the features of the embodiment of figure 2 and which are identified by corresponding reference numerals and to which the foregoing description applies. The lower capping is identical to that of Figure 1. The upper capping has a different cross sectional shape. However, it is also to be noted that the space within the upper capping is divided by a protrusion 100, which in the illustrated embodiment depends from the inner wall 44 of the capping and extends up to the stem 32 of the glazing bar. Thus upper and lower air chambers 102,104 are formed to opposite sides of the stem, which gives rise to advantageous thermal effects as mentioned above. It will be understood that the division of the space within the capping according to this aspect of the invention could be applied to cappings having a single wall construction rather than those having the multi-wall construction of the present invention. Figure 3 also illustrates how the cavities formed by the multi-wall construction of the upper and/or lower cappings may be either filled with an insulation material, such as foamed PVC, as shown at 106, or have the insulation material applied to either wall of a cavity, as shown at 108a, 108b to provide an insulating lining. The insulation is only shown in some of the cavities, but it will be understood that in practice, where provided, it will usually be provided to the capping as a whole, e.g. to all the cavities, or to line all of one skin. The presence of the insulating foam may avoid the need for the dividing webs 48,86. In other words the capping can be formed as a sandwich comprising skins of plastics sandwiching the foamed insulation layer therebetween. Whilst the invention has been described with reference to cappings for glazing bars, it will be appreciated that the invention may also be applied to other plastics cappings used in conservatory roof construction, such as cappings for ridge beams and for valley constructions and especially those in positions exposed to direct sunlight.

Claims

Claims:
1. A capping of plastics material for location on a structural member of a conservatory roof, wherein the capping is twin-walled and has means for location thereof on the structural member.
2. A capping as claimed in claim 1 , wherein the structural member is a glazing bar, a ridge beam or of a valley construction.
3. A capping as claimed in claim 1 or 2, wherein the capping comprises multiple walls with spacing webs.
4. A capping as claimed in claim 1 , 2 or 3, wherein the capping has a twin wall construction having inner and outer walls having a plurality of spaced webs extending therebetween to divide the twin wall construction into a plurality of chambers.
5. A capping as claimed in claim 1 , 2 or 3, wherein the capping has additional walls to form further chambers.
6. A capping as claimed in any one of claims 1 to 5, wherein insulation material is added to the walls or to fill the chambers for enhanced thermal effects.
7. A capping as claimed in claim 6, wherein the insulation material is of foamed plastics.
8. A capping as claimed in any one of claims 1 to 7, wherein the capping has a top and two depending sides.
9. A capping as claimed in claim 8, wherein the depending sides have a gasket along edges thereof for sealing on roofing panels retained on the glazing bar. 10. A capping as claimed in claim 9, wherein the edges of the depending sides of the capping extend between the ends of the inner and outer walls of the capping. 11. A capping as claimed in 10, wherein the gasket forms part of said edge spanning the gap between the ends of the inner and outer walls.
12. A capping as claimed in claim 9, 10 or 11 , wherein the gasket includes a body connecting with the capping and one or more lips which branch from the body and engage the roofing panel.
13. A capping as claimed in any one of claims 9 to 12, wherein the inner wall terminates at a greater distance from the roof panel than the outer wall so that the gasket is at least partially concealed by the outer wall.
22. A glazing bar and capping combination as claimed in claim 21 , wherein the projections extend up to said stem.
23. A capping as claimed in any one of claims 1 to 22 having internal projections to sub-divide space below the capping.
24. A capping as claimed in claim 23, wherein said projections are arcuate as seen in cross-section. 25. A glazing bar and an upper capping therefor and means for locating the capping on the glazing bar, the glazing bar having a stem and lateral flange means for supporting roofing panels directly or indirectly, and wherein the upper capping comprises at least a twin wall construction. 26. A glazing bar and capping combination as claimed in claim 25, wherein the capping comprises multiple walls with spacing webs.
27. A glazing bar and capping combination as claimed in claim 25 or 26, wherein the capping has a twin wall construction having inner and outer walls having a plurality of spaced webs extending therebetween to divide the twin wall construction into a plurality of chambers.
28. A glazing bar and capping combination as claimed in claim 25 or 26, wherein the capping has additional walls to form further chambers.
29. A glazing bar and capping combination as claimed in any one of claims 25 to 28, wherein insulation material is added to the walls or to fill the chambers for enhanced thermal effects.
30. A glazing bar and capping combination, wherein the insulation material is of foamed plastics.
31. A glazing bar and capping combination as claimed in any one of claims 25 to 30, wherein the capping has a top and two depending sides.
32. A glazing bar and capping combination as claimed in claim 31 , wherein the depending sides have a gasket along edges thereof for sealing on roofing panels retained on the glazing bar.
33. A glazing bar and capping combination as claimed in claim 32, wherein the edges of the depending sides of the capping extend between the ends of the inner and outer walls of the capping.
34. A glazing bar and capping combination as claimed in 33, wherein the gasket forms part of said edge spanning the gap between the ends of the inner and outer walls. 35. A glazing bar and capping combination as claimed in claim 32, 33 or 34, wherein the gasket includes a body connecting with the capping and one or more lips which branch from the body and engage the roofing panel.
36. A glazing panel and capping combination as claimed in any one of claims 32 to 35, wherein the inner wall terminates at a greater distance from the roof panel than the outer wall so that the gasket is at least partially concealed by the outer wall.
37. A glazing bar and capping combination as claimed in any one of claims 25 to 36 further comprising a lower capping which is of multiple wall construction.
38. A glazing bar and capping combination as claimed in claim 37, wherein the lower capping is of twin wall construction.
39. A glazing bar and capping combination as claimed in claim 37 or 38, wherein the lower capping has web elements between inner and outer walls defining a plurality chambers.
40. A glazing bar and capping combination as claimed in claim 39, wherein the chambers contain insulation material.
41. A glazing bar and capping combination as claimed in claim 40, wherein the insulation material is of foamed plastics.
42. A glazing bar and capping combination as claimed in any one of claims 37 to 41 , wherein the lower capping includes means for locating it with respect to a glazing bar. 43. A glazing bar and capping combination as claimed in claim 42, wherein end edges of the lower capping carry respective gaskets to engage with the underside of the roofing panels.
44. A glazing bar and capping combination as claimed in any one of claims 25 to 43, wherein, when the upper capping is in place ducts are formed, one each side of the glazing bar upstand and wherein the ducts within the capping between the stem and the roofing panel are divided into at least two chambers.
45. A glazing bar and capping combination as claimed in claim 44, wherein the ducts are divided into inner and outer chambers.
46. A glazing bar and capping combination as claimed in claim 45, wherein the division is by means of projections formed on the stem and extending towards the inside wall of the capping.
47. A glazing bar and capping combination as claimed in claim 45, wherein the division is formed by projections that depend from the inside of the capping.
48. A glazing bar and capping combination as claimed in claim 47, wherein the projections extend up to said stem.
49. A glazing bar and capping combination as claimed in claim 48, wherein the projection does not make physical contact with the stem.
50. A glazing bar and capping combination as claimed in claim 46, wherein the projections branching from the stem stop short of the capping.
51. A glazing bar and capping combination as claimed in any one of claims
46 to 50, wherein the projections are arcuate as seen in cross-section. 52. A glazing bar and an upper capping therefor and means for locating the capping on the glazing bar, and wherein the glazing bar has a stem and lateral flange means for supporting roofing panels, and wherein the space within the capping between the stem and the roofing panel is divided into at least two chambers.
53. A glazing bar and capping combination as claimed in claim 52, wherein the ducts are divided into inner and outer chambers.
54. A glazing bar and capping combination as claimed in claim 53, wherein the division is by means of projections formed on the stem and extending towards the inside wall of the capping.
55. A glazing bar and capping combination as claimed in claim 52, wherein the division is formed by projections that depend from the inside of the capping.
56. A glazing bar and capping combination as claimed in claim 55, wherein the projections extend up to said stem.
57. A glazing bar and capping combination as claimed in claim 56, wherein the projection does not make physical contact with the stem.
58. A glazing bar and capping combination as claimed in claim 54, wherein the projections branching from the stem stop short of the capping.
59. A glazing bar and capping combination as claimed in any one of claims 54 to 58, wherein the projections are arcuate as seen in cross-section.
60. A capping for a structural member of a conservatory roof substantially as hereinbefore described with reference to and as illustrated in any one of the accompanying drawings.
61. A glazing bar and capping combination substantially as hereinbefore described with reference to and as illustrated in any one of the accompanying drawings.
EP04743180A 2003-07-01 2004-07-01 Improvements in or relating to cappings for use in conservatory roof construction Withdrawn EP1639211A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0315328A GB0315328D0 (en) 2003-07-01 2003-07-01 Improvements in or relating to glazing bar claddings
GB0315476A GB0315476D0 (en) 2003-07-02 2003-07-02 Improvements in or relating to glazing bar claddings
PCT/GB2004/002833 WO2005003484A1 (en) 2003-07-01 2004-07-01 Improvements in or relating to cappings for use in conservatory roof construction

Publications (1)

Publication Number Publication Date
EP1639211A1 true EP1639211A1 (en) 2006-03-29

Family

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EP04743180A Withdrawn EP1639211A1 (en) 2003-07-01 2004-07-01 Improvements in or relating to cappings for use in conservatory roof construction

Country Status (5)

Country Link
US (1) US20070039273A1 (en)
EP (1) EP1639211A1 (en)
CA (1) CA2531285A1 (en)
GB (1) GB2403962B (en)
WO (1) WO2005003484A1 (en)

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Also Published As

Publication number Publication date
GB2403962B (en) 2007-02-14
US20070039273A1 (en) 2007-02-22
CA2531285A1 (en) 2005-01-13
WO2005003484A1 (en) 2005-01-13
GB0414763D0 (en) 2004-08-04
GB2403962A (en) 2005-01-19

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