US20070039272A1 - Roof beams - Google Patents
Roof beams Download PDFInfo
- Publication number
- US20070039272A1 US20070039272A1 US10/546,793 US54679304A US2007039272A1 US 20070039272 A1 US20070039272 A1 US 20070039272A1 US 54679304 A US54679304 A US 54679304A US 2007039272 A1 US2007039272 A1 US 2007039272A1
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- US
- United States
- Prior art keywords
- roof beam
- cap
- core profile
- sheath
- roof
- 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.)
- Abandoned
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- 239000004033 plastic Substances 0.000 claims abstract description 25
- 229920003023 plastic Polymers 0.000 claims abstract description 25
- 229910052751 metal Inorganic materials 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims abstract description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 29
- 239000013536 elastomeric material Substances 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 230000002787 reinforcement Effects 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 4
- 230000000717 retained effect Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 241000826860 Trapezium Species 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 2
- 238000005755 formation reaction Methods 0.000 description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003000 extruded plastic Substances 0.000 description 1
Images
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
-
- 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
-
- 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
- E04D2003/0868—Mutual connections and details of glazing bars
- E04D2003/0881—Mutual connections and details of glazing bars on the eaves of the roof
Definitions
- This invention concerns roof beams and in particular concerns roof beams for use in constructing conservatories and like structures having roofs comprising panels usually of translucent material supported between roof beams.
- Translucent panels for conservatory roofs are generally sandwiched at their edges between upper and lower roof beam forming extrusions or caps coupled to a glazing bar, usually of aluminium.
- the roof beams are usually mounted between a ridge beam and an eaves beam.
- provisions are made for the roof beam to retain gaskets in suitable positions.
- Upper roof beam forming extrusions or caps may have gaskets formed integrally with panel contacting edges thereof and gaskets for the underside of the panels are usually retained in special formations of the aluminium glazing bars. These gaskets have to be fitted to the extrusions on site, which takes up time. Also, the extrusions are more expensive to produce because of the additional gasket retaining formations required.
- the aluminium glazing bars require further formations on which the lower beam caps can locate.
- a roof beam construction for use in constructing conservatory roofs comprising a glazing bar generally in the form of an inverted T, in use, and upper and lower caps therefor having gaskets formed integrally on edges thereof between which a roofing panel is to be retained and means for locating the caps on said glazing bar, wherein the means for locating the lower capping on the glazing bar comprises the integrally formed gaskets, which in use are trapped between the glazing bar and roofing panel.
- the glazing bar is aluminium and extends upwards between adjacent translucent panels, there exists the possibility of cold transference from the outside through into the conservatory with the formation of condensation occurring on inner surfaces of the conservatory roof.
- An object of this invention is to provide an improved roof beam for use in constructing conservatory roofs and the like.
- a roof beam for use in constructing conservatory roofs comprising a core profile of metal, a plastics member fitted to the core profile and providing at least one ledge for carrying an edge of a sheet of glazing material and a cap mountable on the plastics member for retaining the glazing sheet thereon.
- the core profile is a hollow extrusion and the plastics member is a sheath for the core profile.
- the plastics member is mountable on top of the core profile.
- the plastics member may be a sliding fit or a snap fit on the top of the core profile.
- Reinforcement may be provided internally of the core profile, such as in the form of steel profiles inserted into the core profile. Such reinforcement is mainly intended for use with core profile lengths over a predetermined threshold for additional strength.
- the core profile and or the sheath are preferably shaped to reduce direct contact between them.
- the sheath may have on its inner spaced surface ribs or the like to provide the only lines of contact with the core profile in certain regions.
- the core profile bar can have spaced feet or flanges that make end contact with the sheath.
- a preferred sectional profile for the core profiles used in the invention is that of a trapezium having a narrow base and wider top.
- the sheath preferably has a corresponding profile.
- the plastics member such as the sheath, preferably has a pair of ledges one each side of a connection formation for attachment of the cap.
- the ledges preferably have gasket material, such as of rubber or other suitable elastomeric material, thereon for sealing against the underside of glazing material.
- the gasket material may be fitted in grooves or the like in the ledges or may be bonded to or co-extruded onto the ledges.
- the sheath preferably has longitudinal channels to provide drainage passages in case of water penetration through the roof beam.
- connection formation of the plastics member is preferably in the form of a slot whose sides extend upwardly from the top of the sheath.
- the sides end with internal lips, whose top surfaces are preferably chamfered for ease of entry of a connection formation of the cap.
- the cap preferably has an, in use, depending connection formation having at least one pair and preferably two pairs of ribs thereon that can be pushed into the slot of the plastics member and retained there with glazing material sandwiched between the cap and the ledges of the plastics member.
- Two pairs of ribs are preferably provided on the cap connection formation, so as to allow the cap to be fitted at two different heights relative to the plastics member to accommodate glazing materials of different thickness.
- the cap may have a single pair of ribs and the slot of the plastics member may have two pairs of internal barbs or the like to allow the cap to be fitted over two different thicknesses of glazing material.
- the cap is preferably generally of T-section, the stem of the T providing the connection formation.
- the cross bar of the T-section preferably has gasket material at ends thereof, such as of rubber or other suitable elastomeric material, for sealing against the topside of glazing material.
- the gasket material may be fitted in grooves or the like in the ends of the cap crossbar or may be bonded to or co-extruded onto the ends thereof.
- the cross bar of the cap is preferably arcuate and ends thereof preferably depend to meet the glazing material.
- Roof beams according to the invention may be mounted between a ridge beam and eaves beam by any suitable means, although it is to be noted that the preferred hollow nature of the core profile allows for fitting of roof beam connectors that can cooperate with formations of a ridge and/or eaves beam for ease of fitting. Preferably such connectors permit snap fitting with cooperating formations of ridge and/or eaves beams.
- anti-theft means be provided for roof beams having a cap for holding down glazing panels on the roof beam.
- the cap has a stem locatable in a slot or channel of a roof beam component
- said means is preferably a clip or the like that can be positioned on the end of the cap to mask the slot or channel from insertion of a lifting tool.
- the clip or the like is preferably generally U-shaped to fit either side of the slot or channel. Internally of the clip one or more barbs may be provided for gripping the outer sides of the slot or channel or for locating in depression or holes provided in the sides of the slot or channel.
- the clip preferably has flared ends to facilitate fitting thereof.
- the clip preferably also has a pair of lugs that extend from the closed end of the clip to overlie the top edges of the slot or channel sides, in order to prevent insertion of a lifting tool.
- FIG. 1 is and end view of part of a renovated style conservatory roof using a roof beam according to the invention
- FIG. 2 is a perspective view of the transom part of the roof of FIG. 1 ;
- FIG. 3 is and end view of part of a Georgian style conservatory roof using a roof beam according to the invention
- FIG. 4 is a perspective view of the part roof of FIG. 3 ;
- FIG. 5 shows a roof beam with security clip
- FIG. 6 shows the security clip
- a conservatory roof 10 comprises glazing panels 12 mounted between roof beams 14 .
- the roof shown is part of a so-called renovated roof with FIG. 1 illustrating the roof beam used at the roof end and FIG. 2 the transom part of the roof.
- a roof beam 14 comprises a core profile 16 in the form of a hollow section extrusion 16 from aluminium, an extruded plastics sheath 18 fitted over the core profile and a cap 20 mounted on the sheath and trapping edges of the glazing panels between the sheath and the cap.
- the core profile is a trapezium in section having a narrower base 22 than top 24 .
- the base has along opposite edges ribs 26 that act as feet for the base and provide minimal contact between the base and the sheath in that region.
- the top 24 of the core profile has a pair of flanges 27 extending upwardly and outwardly therefrom that provide surfaces 28 that contact the inside surface of the sheath.
- the sheath has a corresponding sectional profile to that of the core profile. Its side walls 30 each have a longitudinal rib 32 that serves to space the core profile from the sheath to minimise contact between them. Similarly, the top wall 34 of the sheath has depending ribs again that space the top wall of the core profile from the inside surface of the sheath top wall. Within its top corners the sheath has a pair of ledges 36 that form channels 38 to locate the flanges 26 of the core profile.
- the top wall 34 of the sheath has near its side edges gasket material 35 of rubber or other suitable elastomeric material co-extruded or bonded thereon for sealing against the underside of glazing panels mounted on the roof beam.
- gasket material 35 of rubber or other suitable elastomeric material co-extruded or bonded thereon for sealing against the underside of glazing panels mounted on the roof beam.
- an upstanding connection formation 40 for attachment of the cap to the sheath.
- a groove 42 providing a drainage passage for any water or condensation that may collect on the sheath.
- the connection formation 40 is in the form of a slot having a relatively narrow opening between lips 46 at the top ends of the slot sides 48 .
- the cap 20 is generally T-shaped in section and has an arcuate top 50 and a depending limb 52 that has two pairs of barbs 54 on opposite sides thereof. The barbs are shaped so as to pass relatively easily into the slot 40 but to be difficult to remove therefrom. Two pairs of barbs are provided to allow the cap to accommodate two different thicknesses of glazing panel.
- the cap top has its ends 58 turned downwards and gasket material 59 of rubber or other suitable elastomeric material co-extruded or bonded onto the ends 58 for sealing against the top surfaces of the glazing panels. Because the cap is extruded of plastics material it has some inherent resilience, so that when pushed down onto the sheath and located thereon, the positioning of the barbs will enable the cap ends to exert holding and sealing pressure on the glazing panels.
- roof beams 12 may be mounted between a ridge beam and eaves beam by any suitable means, although it is to be noted that the hollow nature of the core profile allows for fitting of roof beam connectors that can cooperate with formations of a ridge and/or eaves beam for ease of fitting. Preferably such connectors permit snap fitting with cooperating formations of ridge and/or eaves beams.
- the angle of the sides of the roof beam of FIGS. 1 and 2 to the vertical when in position can be chosen to correspond with the pitch of the roof being constructed. That has the advantage that in forming a roof with jack rafters, the jack rafters are able to abut the main roof beams without any overhang visible form below.
- the roof beams for the transom situation and for the Georgian roof end can be the same.
- a Georgian style conservatory roof in which the roof end is square and the angle of adjacent glazing panels at the corners is greater than the angle of adjacent panels forming a medieval roof end, it is necessary to have a slightly different roof beam than that illustrated in FIGS. 1 and 2 of the drawings.
- Such a roof beam is shown in FIGS. 3 and 4 of the drawings, in which like parts to those in FIGS. 1 and 2 have been given the same number for ease of reference.
- the only difference between the renovated and Georgian embodiments is the shape of the cap referred to in FIGS. 3 and 4 as 20 A.
- the top of the cap 20 A has deeper ends 58 A than the cap 20 to accommodate the steeper angle of the glazing panels compared to those in the transom/Victorian situations.
- steel reinforcement 60 for the aluminium core profile that may be needed for longer lengths of core profile.
- the reinforcement may be used in the embodiment of FIGS. 1 and 2 also.
- whisper gaskets 62 of rubber or other elastomeric material that can be provided on the outside of connection formation 40 for providing an additional thermal seal against ends of the glazing panels 12 .
- An alternative to the whisper gaskets may a longitudinal resilient bead or bubble on either side of the formation 40 .
- FIGS. 5 and 6 of the drawings show security arrangements for a roof beam of the type described above. It is envisaged that glazing panels can be removed from a conservatory roof by prising off the roof beam caps 20 at the eaves beam end. To prevent that a clip 70 can be fitted to the end of the sheath 18 over the slot formation 40 to mask the slot, so that a lifting tool cannot be inserted to prise off the cap 20 .
- the clip 70 has a U-shaped body forming a closed end 72 and sides 74 .
- the free ends 75 of the sides 74 are flared to facilitate fitting of the clip.
- the closed end of the clip has a pair of inverted L-shaped lugs 78 extending therefrom that when fitted overlie the top edges of the sides of the slot 40 of the sheath 18 .
- the sides 74 of the clip have internal barbs 76 that grip the sides of the slot formation 40 or locate in depressions or holes thereof to make it difficult to pull the clip off the end of the sheath 18 . With the clip in place there is no access for a lifting tool, such as a screwdriver, to be inserted between the cap and the sheath for prising off the cap.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
A roof beam (14) for a conservatory roof (10) comprises a core profile (16) of metal, a plastics member (18) fitted to the core profile and providing at least one ledge for carrying an edge of a sheet of glazing material (12) and a cap (20) mountable on the plastics member for retaining the glazing sheet thereon.
Description
- This invention concerns roof beams and in particular concerns roof beams for use in constructing conservatories and like structures having roofs comprising panels usually of translucent material supported between roof beams.
- Translucent panels for conservatory roofs are generally sandwiched at their edges between upper and lower roof beam forming extrusions or caps coupled to a glazing bar, usually of aluminium. The roof beams are usually mounted between a ridge beam and an eaves beam. To provide a good seal above and below the translucent panels, provisions are made for the roof beam to retain gaskets in suitable positions.
- Upper roof beam forming extrusions or caps may have gaskets formed integrally with panel contacting edges thereof and gaskets for the underside of the panels are usually retained in special formations of the aluminium glazing bars. These gaskets have to be fitted to the extrusions on site, which takes up time. Also, the extrusions are more expensive to produce because of the additional gasket retaining formations required.
- Furthermore, in order to retain the lower beam forming caps, the aluminium glazing bars require further formations on which the lower beam caps can locate.
- In GB 2275958A it was proposed to provide a roof beam construction for use in constructing conservatory roofs comprising a glazing bar generally in the form of an inverted T, in use, and upper and lower caps therefor having gaskets formed integrally on edges thereof between which a roofing panel is to be retained and means for locating the caps on said glazing bar, wherein the means for locating the lower capping on the glazing bar comprises the integrally formed gaskets, which in use are trapped between the glazing bar and roofing panel.
- Because the glazing bar is aluminium and extends upwards between adjacent translucent panels, there exists the possibility of cold transference from the outside through into the conservatory with the formation of condensation occurring on inner surfaces of the conservatory roof.
- An object of this invention is to provide an improved roof beam for use in constructing conservatory roofs and the like.
- According to the present invention there is provided a roof beam for use in constructing conservatory roofs comprising a core profile of metal, a plastics member fitted to the core profile and providing at least one ledge for carrying an edge of a sheet of glazing material and a cap mountable on the plastics member for retaining the glazing sheet thereon.
- In a first preferred embodiment the core profile is a hollow extrusion and the plastics member is a sheath for the core profile. In another preferred embodiment, the plastics member is mountable on top of the core profile. For example, the plastics member may be a sliding fit or a snap fit on the top of the core profile. Reinforcement may be provided internally of the core profile, such as in the form of steel profiles inserted into the core profile. Such reinforcement is mainly intended for use with core profile lengths over a predetermined threshold for additional strength. The core profile and or the sheath are preferably shaped to reduce direct contact between them. For example, the sheath may have on its inner spaced surface ribs or the like to provide the only lines of contact with the core profile in certain regions. Additionally or alternatively, the core profile bar can have spaced feet or flanges that make end contact with the sheath.
- A preferred sectional profile for the core profiles used in the invention is that of a trapezium having a narrow base and wider top. The sheath preferably has a corresponding profile.
- The plastics member, such as the sheath, preferably has a pair of ledges one each side of a connection formation for attachment of the cap. The ledges preferably have gasket material, such as of rubber or other suitable elastomeric material, thereon for sealing against the underside of glazing material. The gasket material may be fitted in grooves or the like in the ledges or may be bonded to or co-extruded onto the ledges. Between the ledges and the connection formation, the sheath preferably has longitudinal channels to provide drainage passages in case of water penetration through the roof beam.
- The connection formation of the plastics member, such as the sheath, is preferably in the form of a slot whose sides extend upwardly from the top of the sheath. The sides end with internal lips, whose top surfaces are preferably chamfered for ease of entry of a connection formation of the cap. The cap preferably has an, in use, depending connection formation having at least one pair and preferably two pairs of ribs thereon that can be pushed into the slot of the plastics member and retained there with glazing material sandwiched between the cap and the ledges of the plastics member. Two pairs of ribs are preferably provided on the cap connection formation, so as to allow the cap to be fitted at two different heights relative to the plastics member to accommodate glazing materials of different thickness. Alternatively, the cap may have a single pair of ribs and the slot of the plastics member may have two pairs of internal barbs or the like to allow the cap to be fitted over two different thicknesses of glazing material.
- The cap is preferably generally of T-section, the stem of the T providing the connection formation. The cross bar of the T-section preferably has gasket material at ends thereof, such as of rubber or other suitable elastomeric material, for sealing against the topside of glazing material. The gasket material may be fitted in grooves or the like in the ends of the cap crossbar or may be bonded to or co-extruded onto the ends thereof. The cross bar of the cap is preferably arcuate and ends thereof preferably depend to meet the glazing material.
- Roof beams according to the invention may be mounted between a ridge beam and eaves beam by any suitable means, although it is to be noted that the preferred hollow nature of the core profile allows for fitting of roof beam connectors that can cooperate with formations of a ridge and/or eaves beam for ease of fitting. Preferably such connectors permit snap fitting with cooperating formations of ridge and/or eaves beams.
- According to the invention it is further proposed that anti-theft means be provided for roof beams having a cap for holding down glazing panels on the roof beam. Where the cap has a stem locatable in a slot or channel of a roof beam component said means is preferably a clip or the like that can be positioned on the end of the cap to mask the slot or channel from insertion of a lifting tool. The clip or the like is preferably generally U-shaped to fit either side of the slot or channel. Internally of the clip one or more barbs may be provided for gripping the outer sides of the slot or channel or for locating in depression or holes provided in the sides of the slot or channel. The clip preferably has flared ends to facilitate fitting thereof. The clip preferably also has a pair of lugs that extend from the closed end of the clip to overlie the top edges of the slot or channel sides, in order to prevent insertion of a lifting tool.
- This invention will now be further described, by way of example only, with reference to the accompanying drawings, in which:
-
FIG. 1 is and end view of part of a Victorian style conservatory roof using a roof beam according to the invention; -
FIG. 2 is a perspective view of the transom part of the roof ofFIG. 1 ; -
FIG. 3 is and end view of part of a Georgian style conservatory roof using a roof beam according to the invention; -
FIG. 4 is a perspective view of the part roof ofFIG. 3 ; -
FIG. 5 shows a roof beam with security clip; and -
FIG. 6 shows the security clip. - Referring to
FIGS. 1 and 2 of the accompanying drawings, aconservatory roof 10 comprisesglazing panels 12 mounted betweenroof beams 14. The roof shown is part of a so-called Victorian roof withFIG. 1 illustrating the roof beam used at the roof end andFIG. 2 the transom part of the roof. - A
roof beam 14 comprises acore profile 16 in the form of ahollow section extrusion 16 from aluminium, anextruded plastics sheath 18 fitted over the core profile and acap 20 mounted on the sheath and trapping edges of the glazing panels between the sheath and the cap. The core profile is a trapezium in section having anarrower base 22 thantop 24. The base has along opposite edges ribs 26 that act as feet for the base and provide minimal contact between the base and the sheath in that region. Thetop 24 of the core profile has a pair offlanges 27 extending upwardly and outwardly therefrom that providesurfaces 28 that contact the inside surface of the sheath. - The sheath has a corresponding sectional profile to that of the core profile. Its
side walls 30 each have alongitudinal rib 32 that serves to space the core profile from the sheath to minimise contact between them. Similarly, thetop wall 34 of the sheath has depending ribs again that space the top wall of the core profile from the inside surface of the sheath top wall. Within its top corners the sheath has a pair ofledges 36 that formchannels 38 to locate theflanges 26 of the core profile. - The
top wall 34 of the sheath has near its side edges gasketmaterial 35 of rubber or other suitable elastomeric material co-extruded or bonded thereon for sealing against the underside of glazing panels mounted on the roof beam. Centrally of thetop wall 34 of the sheath is anupstanding connection formation 40 for attachment of the cap to the sheath. Either side of theformation 40 is agroove 42 providing a drainage passage for any water or condensation that may collect on the sheath. - The
connection formation 40 is in the form of a slot having a relatively narrow opening betweenlips 46 at the top ends of theslot sides 48. Thecap 20 is generally T-shaped in section and has anarcuate top 50 and a dependinglimb 52 that has two pairs ofbarbs 54 on opposite sides thereof. The barbs are shaped so as to pass relatively easily into theslot 40 but to be difficult to remove therefrom. Two pairs of barbs are provided to allow the cap to accommodate two different thicknesses of glazing panel. The cap top has itsends 58 turned downwards andgasket material 59 of rubber or other suitable elastomeric material co-extruded or bonded onto theends 58 for sealing against the top surfaces of the glazing panels. Because the cap is extruded of plastics material it has some inherent resilience, so that when pushed down onto the sheath and located thereon, the positioning of the barbs will enable the cap ends to exert holding and sealing pressure on the glazing panels. - It is envisaged that the roof beams 12 may be mounted between a ridge beam and eaves beam by any suitable means, although it is to be noted that the hollow nature of the core profile allows for fitting of roof beam connectors that can cooperate with formations of a ridge and/or eaves beam for ease of fitting. Preferably such connectors permit snap fitting with cooperating formations of ridge and/or eaves beams.
- It is to be noted that the angle of the sides of the roof beam of
FIGS. 1 and 2 to the vertical when in position can be chosen to correspond with the pitch of the roof being constructed. That has the advantage that in forming a roof with jack rafters, the jack rafters are able to abut the main roof beams without any overhang visible form below. - In a Victorian style conservatory, the roof beams for the transom situation and for the Victorian roof end can be the same. However, for a Georgian style conservatory roof, in which the roof end is square and the angle of adjacent glazing panels at the corners is greater than the angle of adjacent panels forming a Victorian roof end, it is necessary to have a slightly different roof beam than that illustrated in
FIGS. 1 and 2 of the drawings. Such a roof beam is shown inFIGS. 3 and 4 of the drawings, in which like parts to those inFIGS. 1 and 2 have been given the same number for ease of reference. In fact, the only difference between the Victorian and Georgian embodiments is the shape of the cap referred to inFIGS. 3 and 4 as 20A. - The top of the
cap 20A has deeper ends 58A than thecap 20 to accommodate the steeper angle of the glazing panels compared to those in the transom/Victorian situations. - In this embodiment there is also shown the inclusion of
steel reinforcement 60 for the aluminium core profile that may be needed for longer lengths of core profile. The reinforcement may be used in the embodiment ofFIGS. 1 and 2 also. - In
FIG. 3 there are shownwhisper gaskets 62 of rubber or other elastomeric material that can be provided on the outside ofconnection formation 40 for providing an additional thermal seal against ends of theglazing panels 12. An alternative to the whisper gaskets may a longitudinal resilient bead or bubble on either side of theformation 40. - Finally
FIGS. 5 and 6 of the drawings show security arrangements for a roof beam of the type described above. It is envisaged that glazing panels can be removed from a conservatory roof by prising off the roof beam caps 20 at the eaves beam end. To prevent that aclip 70 can be fitted to the end of thesheath 18 over theslot formation 40 to mask the slot, so that a lifting tool cannot be inserted to prise off thecap 20. - The
clip 70 has a U-shaped body forming aclosed end 72 and sides 74. The free ends 75 of thesides 74 are flared to facilitate fitting of the clip. The closed end of the clip has a pair of inverted L-shapedlugs 78 extending therefrom that when fitted overlie the top edges of the sides of theslot 40 of thesheath 18. Thesides 74 of the clip haveinternal barbs 76 that grip the sides of theslot formation 40 or locate in depressions or holes thereof to make it difficult to pull the clip off the end of thesheath 18. With the clip in place there is no access for a lifting tool, such as a screwdriver, to be inserted between the cap and the sheath for prising off the cap.
Claims (35)
1. A roof beam for a conservatory roof, wherein the roof beam comprises a core profile of metal, a plastics member fitted to the core profile and providing at least one ledge for carrying an edge of a sheet of glazing material and a cap mountable on the plastics member for retaining the glazing sheet thereon.
2. A roof beam as claimed in claim 1 , wherein the core profile is a hollow extrusion and the plastics member is a sheath for the core profile.
3. A roof beam as claimed in claim 1 , wherein the plastics member is mountable on top of the core profile.
4. A roof beam as claimed in claim 3 , wherein the plastics member is a sliding fit or a snap fit on the top of the core profile.
5. A roof beam as claimed in claim 4 , wherein reinforcement is provided internally of the core profile.
6. A roof beam as claimed in claim 5 , wherein the reinforcement is in the form of steel profiles inserted into the core profile.
7. A roof beam as claimed in claim 1 , wherein either or both of the core profile and the sheath are shaped to reduce direct contact between them.
8. A roof beam as claimed in claim 7 , wherein the sheath has on its inner spaced surface ribs or the like to provide the only lines of contact with the core profile in certain regions.
9. A roof beam as claimed in claim 7 , wherein additionally or alternatively, the core profile bar has spaced feet or flanges that make end contact with the sheath.
10. A roof beam as claimed in claim 1 , wherein the core profile has a sectional profile of a trapezium having a narrow base and wider top.
11. A roof beam as claimed in claim 10 , wherein the sheath has a corresponding profile to that of the core profile.
12. A roof beam as claimed in claim 1 , wherein the plastics member has a pair of ledges, one each side of a connection formation for attachment of the cap.
13. A roof beam as claimed in claim 12 , wherein holes for the internal projections of the end cap are provided in the ledges.
14. A roof beam as claimed in claim 12 , wherein the ledges have gasket material thereon for sealing against the underside of glazing material.
15. A roof beam as claimed in claim 14 , wherein the gasket material is of rubber or other suitable elastomeric material.
16. A roof beam as claimed in 14, wherein the gasket material is fitted in grooves or the like in the ledges or bonded to or co-extruded onto the ledges.
17. A roof beam as claimed in claim 12 , wherein between the ledges and the connection formation, the sheath has longitudinal channels to provide drainage passages in case of water penetration through the roof beam.
18. A roof beam as claimed in claim 12 , wherein the connection formation of the plastics member is in the form of a slot whose sides extend upwardly from the top of the sheath.
19. A roof beam as claimed in claim 18 , wherein the sides end with internal lips, whose top surfaces are chamfered for ease of entry of a connection formation of the cap.
20. A roof beam as claimed in claim 19 , wherein the cap has an, in use, depending connection formation having at least one pair of ribs thereon that can be pushed into the slot of the plastics member and retained there with glazing material sandwiched between the cap and the ledges of the plastics member.
21. A roof beam as claimed in claim 20 , wherein two pairs of ribs are provided on the cap connection formation, so as to allow the cap to be fitted at two different heights relative to the plastics member to accommodate glazing materials of different thickness.
22. A roof beam as claimed in claim 20 , wherein the cap has a single pair of ribs and the slot of the plastics member has two pairs of internal barbs or the like to allow the cap to be fitted over two different thicknesses of glazing material.
23. A roof beam as claimed in claim 1 , wherein the cap is generally of T-section, the stem of the T providing the connection formation.
24. A roof beam as claimed in claim 23 , wherein the cross bar of the T-section has gasket material at ends thereof for sealing against the topside of glazing material.
25. A roof beam as claimed in claim 24 , wherein the gasket material is of rubber or other suitable elastomeric material.
26. A roof beam as claimed in claim 24 , wherein the gasket material is fitted in grooves or the like in the ends of the cap crossbar or bonded to or co- extruded onto the ends thereof.
27. A roof beam as claimed in claim 1 , wherein the cross bar of the cap is arcuate and ends thereof depend to meet the glazing material.
28. A roof beam as claimed in claim 1 , having anti-theft means.
29. A roof beam as claimed in claim 28 , wherein said anti-theft means is a clip or the like that can be positioned on the end of the cap to mask the slot or channel from insertion of a lifting tool.
30. A roof beam as claimed in claim 29 , wherein the clip or the like is generally U-shaped to fit either side of the slot or channel.
31. A roof beam as claimed in claim 30 , wherein internally of the clip one or more barbs are provided for gripping the outer sides of the slot or channel or for locating in depression or holes provided in the sides of the slot or channel.
32. A roof beam as claimed in claim 29 , wherein the clip has flared ends to facilitate fitting thereof.
33. A roof beam as claimed in claim 1 , wherein the clip has a pair of lugs that extend from the closed end of the clip to overlie the top edges of the slot or channel sides, in order to prevent insertion of a lifting tool.
34. (canceled)
35. (canceled)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0304754.5 | 2003-03-01 | ||
GBGB0304754.5A GB0304754D0 (en) | 2003-03-01 | 2003-03-01 | Roof beams |
PCT/GB2004/000860 WO2004079123A1 (en) | 2003-03-01 | 2004-03-01 | Roof beams |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070039272A1 true US20070039272A1 (en) | 2007-02-22 |
Family
ID=9953958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/546,793 Abandoned US20070039272A1 (en) | 2003-03-01 | 2004-03-01 | Roof beams |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070039272A1 (en) |
EP (1) | EP1599643A1 (en) |
CA (1) | CA2517618A1 (en) |
GB (2) | GB0304754D0 (en) |
WO (1) | WO2004079123A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060260225A1 (en) * | 2003-03-01 | 2006-11-23 | Christopher Richardson | Roof beam end caps |
US20110258943A1 (en) * | 2010-04-21 | 2011-10-27 | Vic De Zen | Modular building |
US20120311942A1 (en) * | 2011-06-07 | 2012-12-13 | Duro-Last, Inc. | Roofing trim strips and multi-piece roofing trim strip products |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2531285A1 (en) * | 2003-07-01 | 2005-01-13 | Ultraframe (Uk) Limited | Improvements in or relating to cappings for use in conservatory roof construction |
GB0424336D0 (en) * | 2004-11-03 | 2004-12-08 | Ultraframe Uk Ltd | Installation of roof glazing panels |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4113294A (en) * | 1977-06-14 | 1978-09-12 | Francis Andrew Bierman | Anti-theft clip |
US4201019A (en) * | 1977-12-01 | 1980-05-06 | Linkman Building Company Limited | Greenhouses |
US4222210A (en) * | 1978-02-25 | 1980-09-16 | Rohm Gmbh | Conversion muntins for glazing frames |
US5924263A (en) * | 1998-01-07 | 1999-07-20 | Richardson; Christopher | Glazing bars |
US6000176A (en) * | 1997-07-25 | 1999-12-14 | Ultraframe (Uk) Limited | Roof ridge assemblies |
US20010017014A1 (en) * | 2000-02-28 | 2001-08-30 | Ultraframe (Uk) Limited, Clitheroe | Glazing bar end caps |
US20010047630A1 (en) * | 1999-03-18 | 2001-12-06 | Christopher Richardson | Roof construction |
US6527471B2 (en) * | 2000-01-19 | 2003-03-04 | Termax Corporation | Sealing spring fastener with closed cavity |
US20040237429A1 (en) * | 2001-06-12 | 2004-12-02 | Mcmahon Barry | Conservatory roof structures, glazing bar upper covers & glazing bars therefor |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1077733A (en) * | 1963-09-26 | 1967-08-02 | Arthur Irwin Pearson | Improvements relating to glazing, cladding and the like |
DE3213981C2 (en) * | 1982-04-16 | 1986-06-19 | Manfred 4760 Werl Gebhardt | Device for the edge-side clamping of surface elements, preferably glass panes for the construction of greenhouses |
FR2655676B1 (en) * | 1989-12-12 | 1992-02-21 | Jacquemin Guillaume Daniel | INSULATING ROOF WITH METAL CHEVRONS. |
BE1005690A3 (en) * | 1992-02-18 | 1993-12-14 | Bom P L J Beheer Bv | Greenhouse and clamp profiles for use in it |
GB9302287D0 (en) | 1993-02-05 | 1993-03-24 | Ultraframe Plc | Roof beams |
DE9303883U1 (en) * | 1993-03-16 | 1993-05-19 | Thyssen Polymer GmbH, 8000 München | Rafter and post profile |
GB9516910D0 (en) * | 1995-08-18 | 1995-10-18 | Jones David M | Improvements in panel support systems |
AU9172098A (en) * | 1998-09-22 | 2000-04-10 | Ultraframe (Uk) Limited | Glazing support systems |
-
2003
- 2003-03-01 GB GBGB0304754.5A patent/GB0304754D0/en not_active Ceased
-
2004
- 2004-03-01 WO PCT/GB2004/000860 patent/WO2004079123A1/en not_active Application Discontinuation
- 2004-03-01 EP EP04715953A patent/EP1599643A1/en not_active Withdrawn
- 2004-03-01 CA CA002517618A patent/CA2517618A1/en not_active Abandoned
- 2004-03-01 GB GB0404528A patent/GB2399107B/en not_active Expired - Lifetime
- 2004-03-01 US US10/546,793 patent/US20070039272A1/en not_active Abandoned
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4113294A (en) * | 1977-06-14 | 1978-09-12 | Francis Andrew Bierman | Anti-theft clip |
US4201019A (en) * | 1977-12-01 | 1980-05-06 | Linkman Building Company Limited | Greenhouses |
US4222210A (en) * | 1978-02-25 | 1980-09-16 | Rohm Gmbh | Conversion muntins for glazing frames |
US6000176A (en) * | 1997-07-25 | 1999-12-14 | Ultraframe (Uk) Limited | Roof ridge assemblies |
US5924263A (en) * | 1998-01-07 | 1999-07-20 | Richardson; Christopher | Glazing bars |
US20010047630A1 (en) * | 1999-03-18 | 2001-12-06 | Christopher Richardson | Roof construction |
US6527471B2 (en) * | 2000-01-19 | 2003-03-04 | Termax Corporation | Sealing spring fastener with closed cavity |
US20010017014A1 (en) * | 2000-02-28 | 2001-08-30 | Ultraframe (Uk) Limited, Clitheroe | Glazing bar end caps |
US20040237429A1 (en) * | 2001-06-12 | 2004-12-02 | Mcmahon Barry | Conservatory roof structures, glazing bar upper covers & glazing bars therefor |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060260225A1 (en) * | 2003-03-01 | 2006-11-23 | Christopher Richardson | Roof beam end caps |
US20110258943A1 (en) * | 2010-04-21 | 2011-10-27 | Vic De Zen | Modular building |
US20120311942A1 (en) * | 2011-06-07 | 2012-12-13 | Duro-Last, Inc. | Roofing trim strips and multi-piece roofing trim strip products |
Also Published As
Publication number | Publication date |
---|---|
CA2517618A1 (en) | 2004-09-16 |
GB0404528D0 (en) | 2004-03-31 |
GB2399107A (en) | 2004-09-08 |
GB0304754D0 (en) | 2003-04-02 |
WO2004079123A1 (en) | 2004-09-16 |
EP1599643A1 (en) | 2005-11-30 |
GB2399107B (en) | 2006-07-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ULTRAFRAME (UK) LIMITED, GREAT BRITAIN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:RICHARDSON, CHRISTOPHER;REEL/FRAME:018037/0059 Effective date: 20051007 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |