EP1870532A2 - Dachlicht - Google Patents

Dachlicht Download PDF

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Publication number
EP1870532A2
EP1870532A2 EP07252551A EP07252551A EP1870532A2 EP 1870532 A2 EP1870532 A2 EP 1870532A2 EP 07252551 A EP07252551 A EP 07252551A EP 07252551 A EP07252551 A EP 07252551A EP 1870532 A2 EP1870532 A2 EP 1870532A2
Authority
EP
European Patent Office
Prior art keywords
rooflight
baseplate
casement
linings
blind
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Withdrawn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
EP07252551A
Other languages
English (en)
French (fr)
Other versions
EP1870532A3 (de
Inventor
Peter Daniel
Paul Herbert
Peter King
Tim Muller
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.)
Metal Window Co Ltd
Original Assignee
Metal Window Co 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
Application filed by Metal Window Co Ltd filed Critical Metal Window Co Ltd
Publication of EP1870532A2 publication Critical patent/EP1870532A2/de
Publication of EP1870532A3 publication Critical patent/EP1870532A3/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
    • E06B1/04—Frames for doors, windows, or the like to be fixed in openings
    • E06B1/34—Coverings, e.g. protecting against weather, for decorative purposes
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/03—Sky-lights; Domes; Ventilating sky-lights
    • E04D13/0305—Supports or connecting means for sky-lights of flat or domed shape
    • E04D13/031—Supports or connecting means for sky-lights of flat or domed shape characterised by a frame for connection to an inclined roof
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47H—FURNISHINGS FOR WINDOWS OR DOORS
    • A47H99/00—Subject matter not provided for in other groups of this subclass
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/03—Sky-lights; Domes; Ventilating sky-lights
    • E04D13/033—Sky-lights; Domes; Ventilating sky-lights provided with means for controlling the light-transmission or the heat-reflection, (e.g. shields, reflectors, cleaning devices)
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/03—Sky-lights; Domes; Ventilating sky-lights
    • E04D13/035—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts
    • E04D13/0351—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts the parts pivoting about a fixed axis
    • E04D13/0354—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts the parts pivoting about a fixed axis the parts being flat
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/14—Junctions of roof sheathings to chimneys or other parts extending above the roof
    • E04D13/147—Junctions of roof sheathings to chimneys or other parts extending above the roof specially adapted for inclined roofs
    • E04D13/1473—Junctions of roof sheathings to chimneys or other parts extending above the roof specially adapted for inclined roofs specially adapted to the cross-section of the parts extending above the roof
    • E04D13/1475—Junctions of roof sheathings to chimneys or other parts extending above the roof specially adapted for inclined roofs specially adapted to the cross-section of the parts extending above the roof wherein the parts extending above the roof have a generally rectangular cross-section
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
    • E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
    • E06B7/232—Resilient strips of hard material, e.g. metal
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/26—Rain or draught deflectors, e.g. under sliding wings also protection against light for doors
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47H—FURNISHINGS FOR WINDOWS OR DOORS
    • A47H2201/00—Means for connecting curtains
    • A47H2201/01—Magnets
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/03—Sky-lights; Domes; Ventilating sky-lights
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/6617—Units comprising two or more parallel glass or like panes permanently secured together one of the panes being larger than another

Definitions

  • the present invention is concerned with windows, particularly (but not exclusively) rooflights.
  • Rooflights are windows suitable for installation into roofs. Roofs are often angled (so that rain can run off into guttering) and thus rooflights are typically installed into an angled roof.
  • the uppermost end (i.e. the end nearest the apex of an inclined roof) of a rooflight is typically referred to as the head end.
  • the sides of a rooflight are typically referred to as jambs.
  • the lowermost end (i.e. the end nearest the gutter of an inclined roof) of a rooflight is typically referred to as the cill (sometimes spelled sill) end.
  • a rooflight comprises a casement and a baseplate.
  • the casement is glazed and is moveable relative to the baseplate.
  • the baseplate is secured to the roof in which the rooflight is mounted.
  • a first aspect of the present invention provides a casement with a protective perimeter lip or flange.
  • a second aspect of the present invention provides a combined lining and guide rail for a blind.
  • a third aspect of the present invention provides a flashing system for a rooflight.
  • Another aspect of the present invention provides a water deflector for preventing rain water from impinging directly onto a weather seal between a casement and baseplate.
  • Another aspect provides removable linings which can be mounted an interior face of the casement and/or baseplate.
  • Another aspect provides a slot, for securing flashing, which extends around the perimeter of the baseplate.
  • Another aspect of the present invention provides a blind which is recessed within cavities and a blind runner, thus reducing unwanted transmission of light when the blind is pulled.
  • FIG. 1 shows a rooflight 100 comprising a baseplate 110 and a casement 120.
  • the baseplate 120 comprises a baseplate flange 130 which extends around the perimeter of the baseplate 120 and facilitates mounting of the baseplate 120 to rafters.
  • the rooflight 100 is shown mounted to two rafters 140; the rafters 140 are not part of the rooflight 100 but show how the rooflight 100 is supported by the rafters 140.
  • the rafters 140 are inclined from horizontal by the pitch angle, ⁇ , of the roof and thus the rooflight 100 is also inclined from horizontal by ⁇ .
  • the rooflight 100 is formed from profiles produced by a pultrusion moulding process.
  • the baseplate 110 comprises four lengths of a profile which are joined together by a mitre joint at each corner.
  • the casement 120 also comprises four length of a profile (different from the profile of the baseplate 110) which are joined together by a mitre joint at each corner.
  • glass fibre and thermosetting resin are pulled through a passage in heated metal die to produce a glass-reinforced plastic profile having a substantially constant cross section.
  • the pultruded profile has the same cross section as the passage in the metal die.
  • materials such as aluminium (whether formed by extrusion or by machining) or PVC (polyvinyl chloride) may be used instead or in addition.
  • tiling battens typically extend across the rafters. Tiles/slates are mounted above the tiling battens by nailing the tiles/slates to the tiling battens. The tiling battens are also used to attach roofing felt underneath the tiling battens.
  • the rooflight 100 requires an aperture in the roofing felt and that the roofing felt is sealed to the rooflight 100 (around the perimeter of the rooflight 100) to prevent entry of rainwater through to the interior side of the roofing felt in the region of the rooflight 100.
  • the rooflight 100 is double glazed.
  • An alternative embodiment is single glazed.
  • the rooflight 100 is generally rectangular.
  • the rooflight is polygonal.
  • Figure 2 shows a cross section of the rooflight of Figure 1 in a vertical plane II-II of Figure 1. As shown, the head end and casement end of the rooflight are generally symmetric about the transverse plane XII-XII.
  • Figure 2 also shows trimmers 200 which span the rafters 140 of Figure 1.
  • the baseplate flange 130 rests on the trimmers 200 (and on the rafters 140).
  • the casement is double glazed and has an upper pane of glass 210 and a lower pane 220.
  • the panes 210, 220 are bonded to the four profiles which make up the casement 120.
  • Figure 3 shows a view similar to that of Figure 2 but in which the casement 120 has been separated from the baseplate 110.
  • the cill end 300 of the casement 120 may be moved upwards relative to the cill end 310 of the baseplate 310 by using a handle (not shown) or an electric motor mechanism (not shown), optionally in conjunction with one or more gas springs (not shown).
  • a linkage which connects the casement 120 to the baseplate. Suitable handles, electric motor mechanisms and linkages are known to those skilled in the art.
  • the linkage may be replaced with a hinge at the head end between the casement 120 and baseplate 110.
  • Figure 4 shows a zoomed view of a region IV at the head end of Figure 2.
  • the casement 120 is provided with two recesses 430, 440.
  • the recess 430 extends around the exterior perimeter of the pultrusion profile 420 of the casement 120; the recess 440 extends around the interior perimeter of the profile 420.
  • Each recess 430, 440 is provided with a respective rubber gasket 431, 441 that is captively retained within its respective recess 430, 440.
  • the rubber gaskets 431, 441 form a substantially watertight seal against mating surfaces 432, 442 of the baseplate pultrusion profile 440.
  • the recess 430, rubber gasket 431 and mating surface 432 form a primary water seal.
  • the recess 440, rubber gasket 441 and mating surface 442 form a secondary water seal.
  • the casement 120 when the casement 120 is closed, the casement 120 is spaced apart from the baseplate 110 by 2mm.
  • the rubber gaskets 431, 441 bridge the 2mm gap.
  • the 2mm gap forms, in effect a channel at the split line (the split line is, strictly speaking, planar but at the head end of the rooflight 100 the split plane can be regarded as a split line) which could convey impinging rain drops directly towards the primary water seal.
  • a deflector plate 450 is mounted to the baseplate 110 (in other embodiments the deflector plate 450 is instead mounted to the casement 120).
  • the deflector plate 450 prevents rain drops from impinging directly on the split line between the casement 120 and baseplate 110, and thus improves the ability of the primary water seal 430, 431, 432 to prevent entry of water into the rooflight 100.
  • the deflector plate 450 ensures that the kinetic energy of falling raindrops is substantially dissipated before the water encounters the primary water seal.
  • the deflector plate 450 also reduces water entry through the head end of the rooflight 100 when the casement 120 is partially opened.
  • the defector plate extends the entire width of the casement 120 and overlaps the casement 120 (when the casement 120 is closed) by an overlap distance 460.
  • the overlap distance is 5mm but in alternative embodiments the overlap distance may be any integer in the range 1mm to 40mm inclusive.
  • the deflector plate 450 is made of stainless steel and is attached to the baseplate using adhesive (not shown) and screws 470.
  • the deflector plate 450 is positioned on the baseplate 110 so that when the casement 120 is closed, there is a substantially zero gap between the deflector plate 450 and the casement 120.
  • the deflector plate 450 is positioned so that when the casement 120 is closed, the deflector plate 450 is spaced apart (in a direction perpendicular to the distance 460) from the casement 120, for example by 2mm.
  • Figure 5 shows an alternative embodiment of the region V of Figure 4.
  • the baseplate 110 is provided with a lip 550 along the head end.
  • the casement 110 is provided with a deflector plate or a lip.
  • the entire exterior periphery of the casement 120 or baseplate 110 is provided with a deflector plate or a lip.
  • Figure 6 shows a zoomed view of a region VI at the head end of Figure 2, and shows a head baseplate lining 610 mounted to the head end of the baseplate 110 also shows a head casement lining 620 mounted to the head end of the casement 120.
  • FIG 7 shows an exploded view of Figure 6.
  • the head baseplate lining 610 comprises a generally "L” shaped bracket 611.
  • a lug 612 of the bracket 611 projects substantially normal to the plane of the head baseplate lining 610.
  • the baseplate profile 410 has a groove 613; the width of the groove is dimensioned to retain the lug 612 by a friction fit.
  • the head casement lining 620 comprises a generally "L" shaped bracket 621 having a lug 622; the casement profile 420 has a groove 623.
  • the cill end and two jambs of the baseplate 110 and casement 120 are also provided with linings.
  • the head and cill linings are mounted first and then the jamb linings are mounted.
  • the dimensions of the linings are such that the jamb linings lock the head and cill linings in position so that the head and cill linings cannot be removed without first removing the jamb linings.
  • the various linings close off what would otherwise be open cavities of the baseplate profile 410 and casement profile 420, and therefore prevent access to the cavities. It will be recalled that, for clarity, a handle (having a handle mechanism), an electric motor mechanism, optional gas springs, and linkages have not been shown. In this embodiment, the handle mechanism, electric motor mechanism and linkages are mounted in the cavities of the baseplate profile 410 and casement profile 420. The various linings therefore prevent inadvertent access to the handle mechanism, electric motor mechanism, optional gas springs, and linkages. Access to the handle mechanism, electric motor mechanism and linkages may be obtained by pulling the appropriate lining to overcome the friction fit between the lug and groove.
  • the arrangement shown by Figure 7 also allows the linings to be detached for decoration. For example, if a householder redecorates the room into which the rooflight 100 is mounted, the householder may remove the linings and paint the linings so that the painted linings match the colour of the redecorated room.
  • each lining may be provided with a single bracket that extends substantially the entire length of the bracket.
  • different methods may be used to detachably mount the linings.
  • magnets may be mounted in the linings and profiles.
  • a hook and loop type fasteners may be used.
  • either only the baseplate or only the casement is provided with removable linings.
  • the rooflight comprises a glazed baseplate but does not comprise a casement that is movable relative to the baseplate.
  • Figure 7 also shows the way in which the upper pane 210 and lower pane 220 of glass are bonded to the casement profile 420.
  • the upper pane 210 is bonded to the casement profile 420 around the exterior perimeter 700 of the casement profile 420.
  • the lower pane 220 is bonded to the casement profile 420 around the interior perimeter 710 of the casement profile.
  • the upper pane 210 is larger than the lower pane 220.
  • the panes 210 and 220 are the same size.
  • the profile 420 has a perimeter lip which surrounds both the panes 210, 220 and is spaced apart from the panes 210, 220 by a 3mm perimeter gap.
  • the lower pane 220 is bonded to the profile.
  • a weatherproof seal is formed between the upper pane 210 and the perimeter lip using silicone sealant to bridge the 3mm gap.
  • FIG 8 shows a plan view of the rooflight 100 of Figure 1 (in a direction normal to the plane of the rooflight 100), and shows a jamb and head flashing 800 and a cill apron 810 (the rafters of Figure 1 are not shown).
  • the jamb flashing 800 generally has the shape of an upside down "U” and provides, in this embodiment, 30cm of flashing around the two jambs and head of the baseplate 110.
  • the cill apron 810 provides, in this embodiment, 30cm of flashing around the cill of the baseplate 110.
  • the jamb flashing 800 and the cill apron 810 are formed of metal, for example aluminium.
  • lead flashing is conventionally used to integrate a rooflight with, for example, tiles or slates of the roof.
  • the lead flashing guides rain water over the first or so row of tiles downstream of the rooflight.
  • the installation of lead flashing is a skilled operation which increases the cost of installing conventional rooflights.
  • the cill ends of the jamb portions of the jamb flashing 800 overlap the ends of the cill apron 810 but do not overlap a central portion 820 of the cill apron 810.
  • the jamb flashing 800 is covered by roof tiles/slates and is thus hidden; the central portion 820 of the cill apron 810 is visible as the cill apron 810 overlies a row (or several rows, depending on the size of the tiles/slates) of tiles/slates.
  • the exterior perimeter of the baseplate flange 130 is provided with a slot into which the jamb flashing 800 and cill apron 810 are received.
  • Figure 8 shows that there are two regions 830 where the jamb flashing 800 overlaps the cill apron 810 within the slot.
  • Figure 8 shows in phantom lines the edges of the jamb flashing 800 and the cill apron 810 within the slot.
  • Figure 9 shows a cross section of Figure 8 in a vertical plane IX-IX of Figure 8, and shows the rooflight 100 inclined by the angle ⁇ .
  • Figure 10 shows a zoomed view of a region X at the cill end of Figure 9.
  • Figure 10 shows a slot 1000.
  • the slot 1000 is the cill end of the slot which, as mentioned above, extends around the exterior perimeter of the baseplate flange 130.
  • the slot 1000 receives the uppermost end of the cill apron 810.
  • Grub screws 1010 (only a single grub screw 1010 is visible in the vertical plane IX-IX shown zoomed by Figure 10) retain the cill apron 810.
  • the slot 1000 is first filled with a sealant such as silicone sealant.
  • a sealant such as silicone sealant.
  • the cill apron 810 is then inserted into the slot 1000 and the grub screws 1010 are tightened to secure the cill apron 810.
  • Excess sealant on the top surface 810t of the cill apron 810 is then removed (excess sealant on the bottom surface 810b of the cill apron 810 need not be removed).
  • the jamb flashing 800 is mounted to the baseplate flange 130 in the same way as the cill apron 810, using sealant and grub screws.
  • the jamb flashing 800 may be mounted to the baseplate flange 130 before or after the cill apron 810 has been mounted (provided that the cill ends of the jamb portions of the jamb flashing 800 overlap the ends of the cill apron 810).
  • the opening of the slot 1000 is located at a corner junction of the baseplate flange 130.
  • the opening of the slot 1000 is moved onto a face 1020 of the baseplate flange 130 (i.e. onto the face from which the grub screws 910 are inserted).
  • the opening of the slot 1000 is moved onto a face 1030 of the baseplate flange (i.e. onto the uppermost face of the baseplate flange 130).
  • the slot (i.e. including the slot 1000 at the cill end of the baseplate flange 130) is formed in the baseplate flange 130 during the pultrusion moulding process used to manufacture the baseplate profile 410.
  • the slot 1000 at the cill end of the baseplate 110 is orientated (that is, when the rooflight 100 is mounted to a sufficiently inclined roof) so that even if the sealant in the slot 1000 degrades, rain water will still be prevented from reaching the bottom surface 810b of the cill apron 810 as the water would have to flow uphill in the slot in order to reach the bottom surface 810b.
  • the slot 1000 is in the same plane as the baseplate flange 130; in this alternative embodiment the grub screws are inserted from a face 1040 on the underside of the baseplate flange 130.
  • Figure 11 shows a cross section of the rooflight of Figure 1 in the vertical plane II-II, and shows a roller blind 1100, blind material 1101 and a hem bar 1102.
  • the roller blind 1100 is mounted at the head end of the rooflight 100, inside a cavity in the baseplate profile 410.
  • the hem bar 1102 allows a user to readily extend the blind by pulling the blind material 1101 out of the cavity in the baseplate profile 410.
  • an electric motor may be provided in the cavity in the cill end of the baseplate profile in order to electrically extend and retract the blind.
  • Figure 11 also shows the head baseplate lining 610, the cill baseplate lining 1110 and cill casement lining 1120 (the cill baseplate lining 1110 and cill casement lining 1120 were not previously shown).
  • the head baseplate lining 610 and the cill baseplate lining 1120 do not extend to the lower plane of the baseplate 110.
  • a slot shaped aperture 1130 is defined between the head baseplate lining 610 and the bottom plane of the baseplate 110; the aperture 1130 allows the blind material 1101 to leave the cavity in the baseplate profile 410.
  • a slot shaped aperture 1131 is defined between the cill baseplate lining 1110 and the bottom plane of the baseplate 110; the aperture 1131 allows the hem bar 1102 to enter the cavity in the cill end of the baseplate profile 410.
  • An advantage of the rooflight 100 over prior art rooflights is the use of profiles having cavities; the cavities allow components (such as the roller blind 1100) to be mounted inside the frame of the rooflight 100. This avoids obscuring the glazed aperture of the casement 110.
  • Conventional rooflights are manufactured from solid materials such as timber and thus if a roller blind is fitted, the roller blind is mounted to the head end of the baseplate. Ignoring the matter that conventional rooflights do not have baseplate linings, a conventional rooflight would, in effect, mount the roller blind 1100 to the head baseplate lining 610, thus obscuring a portion of the glazed area of the casement and thus reducing the amount of light transmitted through the rooflight.
  • Figure 12 shows a cross section of the rooflight of Figure 1 in a generally vertical plane XII-XII (the plane XII-XII is inclined from true vertical by the same angle as the inclination of the rafters), and shows jamb baseplate linings 1210 and jamb casement linings 1220, together with the blind. As shown, the jambs of the rooflight are generally symmetric about the longitudinal plane II-II.
  • Figure 13 shows a zoomed view of a region XIII of Figure 12, and shows a blind runner 1300 and a retention stud 1310.
  • a blind runner 1300 is mounted (using, in this embodiment, a suitable adhesive 1301) to the baseplate 110 on each jamb.
  • a plurality of retention studs 1310 are fitted at intervals along each edge of the blind 1101.
  • the blind runners 1330 each have a constriction 1330 that is smaller than the retention studs 1310. The edges of the blind 1101 are therefore captively retained within the blind runners 1300.
  • the jamb baseplate linings 1210 do not extend to the bottom plane of the baseplate 110.
  • a slot shaped aperture 1340 (analogous to the slot shaped apertures 1110 and 1111) is defined between the jamb baseplate lining 1210 and the bottom plane of the baseplate 110, thus allowing the edges of the blind 1101 to enter the blind runners 1300.
  • conventional rooflights are made from solid materials such as timber and thus, ignoring the matter that conventional rooflights do not have baseplate linings, for a conventional rooflight the blind runners would be mounted to, in effect, the jamb baseplate linings, thus obscuring a portion of the glazed area of the casement and thus reducing the amount of light transmitted through the rooflight.
  • a further advantage of having the roller blind 1100 and blind runners 1300 mounted within a cavity of the profile 420 is that unwanted transmission of light around the edges and ends of the blind 1101 is reduced.
  • unwanted light cannot pass around the edges or ends of the blind 1101 as the profile 420 (in conjunction with the head baseplate lining 610, cill baseplate lining 1120 and jamb baseplate linings 1210) and also the blind runners 1300 form, in effect, a light box.
  • the light box attenuates transmission of light as any light would have to reflect off multiple surfaces in order to escape around the edges or ends of the blind 1101.
  • a blackout blind is fitted as the blind 1101 and the combination of rooflight 100 and blackout blind is effective in preventing unwanted transmission of light.
  • the profile 420 is provided with a perimeter lip or flange.
  • the perimeter lip/flange provides protection to what would otherwise be the exposed edge of the pane 210.
  • the perimeter lip reduces the risk of accidental damage, such as chipping or cracking, to the pane 210 during manufacture, transport or installation of the rooflight.
  • Prior art rooflights include a frame which encases the perimeter region of the glazing 210, 220. Such prior art rooflights do not therefore suffer the problem of damage to the edge of the glazing.
  • the rooflight described herein has the advantage of simplified manufacture as it is not necessary to encase the perimeter of the glazing in a frame (i.e. the glazing of the present rooflight is frameless). Instead of using a frame, the glazing is bonded (as described below in more detail) to the casement 120 and then a weatherproof seal is applied between the glazing and the casement 120. Without a protective lip, the advantage of easier manufacturing would be offset by the risk of damage to the edge of the glazing.
  • Figure 14 shows an embodiment 1400 of a perimeter lip 1401.
  • the panes 210, 220 are not the same size; the outer pane 210 overlaps the inner pane 220 by 8mm at each edge and thus the outer pane 210 is 16mm wider and 16mm longer than the inner pane 220.
  • the perimeter lip 1401 is the uppermost portion of an outer upstanding member 1420.
  • An inner upstanding member 1421 is formed 4mm away from the outer upstanding member 1420; the inner 1421 and outer 1420 upstanding members are each 5mm thick.
  • the outer 1420 and inner 1421 upstanding members stand up in a plane substantially perpendicular to the panes 210, 220.
  • Figure 14 shows a portion of a cleat 1430.
  • the cleat 1430 is formed of galvanized steel and in this embodiment has formed in it a 90° bend which is used to hold the mitre joints of the casement 120 secure during manufacture of the casement 120. Screws (not shown) are inserted through the inner upstanding member 1421, through the cleat 1430 and partially through the outer upstanding member 1420 in order to secure the cleats 1430 (although only one cleat in shown by Figure 14, there are a total of four cleats 1430 per casement 120) to the pultrusion profile 420 of the casement 120. Note that in some embodiments, a total of 12 cleats are used.
  • Figure 16a shows an embodiment in which as well as the four cleats 1430, there are also four cleats 1631 and four cleats 1632. As shown, the cleats 1631 and 1632 are received by respective recesses in the profile of the casement 120.
  • Silicone 1440 is applied, between the pane 210 and the perimeter lip 1401, as the primary weather seal between the glazing and the profile 420.
  • the distance from the edge of the pane 210 to an inside face 1402 of the perimeter lip 1401 is 5mm.
  • the distance from the bottom of the pane 210 to the top of the inner upstanding member 1421 is 2mm.
  • the silicone 1440 is applied in a liquid form and covers the cleat 1430 and in this embodiment at least partially fills a cavity 1450.
  • FIG. 14 also shows the configuration of the glazing in more detail.
  • the panes 210, 220 are each 4mm thick and are spaced apart by a spacer bar 1460.
  • the spacer bar 1460 has a cross-section of approximately 12mm x 12mm and is attached to the panes 210, 220 by a hot melt adhesive.
  • glazing tape 1470 is used to attach the inner pane 220 to the profile 420.
  • Glazing tape is a type of double sided adhesive tape and, as well as mechanically securing the glazing 210, 220, 1460, provides a secondary weather seal.
  • Figure 14 shows that the top of the perimeter lip 1401 is flush with the top of the pane 210.
  • the top of the perimeter lip 1401 may be project above the top (i.e. outermost surface) of the pane 210 or may be recessed below the top of the pane 210.
  • the top of the perimeter lip 1401 may either project or be recessed by 1, 2, 3, 4 or 5mm.
  • a disadvantage of a recessed perimeter lip compared to the flush perimeter lip 1401 is that the risk of accidental damage to the edge of the pane 210 is increased. In effect, with a recessed perimeter lip there is a range of angles which could allow an object to impinge on the edge of the pane 210 and crack or chip the pane 210.
  • the glazing tape 1470 has a thickness of 9mm which, in conjunction with the 4mm thickness of the panes 210, 220 and the 12mm height of the spacer bar 1460, provides a total height of 29mm.
  • the thickness/height of the glazing tape 1470 may be reduced to, say, 5mm to compensate for the increased thickness of the glass, thus ensuring that the top of pane 210 is flush with the top of the perimeter lip 1401.
  • Figure 15 shows a simplified version of Figure 14 but in an embodiment in which a perimeter lip 1501 is recessed. As shown, there is a range of angles ⁇ which allow an object to impinge on the edge of the pane 210.
  • the outermost portion of the top of the perimeter lip 1501 is laterally 12mm (5mm silicone gap together with, in this embodiment, 7mm (instead of 5mm as was the case for Figure 14) of outer upstanding member 1420) away from the edge of the pane 210.
  • the outermost portion of the top of the perimeter lip 1501 is 3mm lower than the pane 210.
  • the perimeter lip may be spaced 1mm (i.e. 1mm of silicone 1440) from the edge of the pane 210 and may be raised 1mm above the top of the panel 210.
  • perimeter lip 1501 and the edge of pane 1501 may be positioned relative to each other so that the total angular range of vulnerability is reduced (from 180°, which is unprotected) to one of: 0°, 15°, 30°, 45°, ... , 75°, 90°, 105°, ... , 165°.
  • the cleats 1430 may be dispensed with and a single upstanding member (not shown) may be used to replace the inner 1421 and outer 1420 upstanding members.
  • the panes 210, 220 may be the same size. However, an advantage of panes 210, 220 of different size is that the cleats 1430 and inner upstanding members 1421 may be recessed under the pane 210.
  • the protective lip/flange 1401, 1501 is preferably provided on all four sides of the casement 120 (of course, the casement 120 need not be rectangular). In some embodiments, the protective lip 1401 may be provided on some, but not all, side/surfaces of the casement 120.
  • Figures 16a and 16b show a zoomed view of a portion of an embodiment in which a guide rail for a blind is formed between two channel sections 1601, 1602.
  • a blind runner 1300 was shown which was attached to the baseplate 110.
  • the channel sections 1601, 1602 cooperate to form a blind runner which captively retains the retention studs 1310 of blind material 1101.
  • Channel section 1602 is mounted on the baseplate 110 whereas channel section 1601 is mounted to the baseplate lining 610.
  • a roller blind 1100 (not shown in Figure 16) may be mounted inside a cavity of the baseplate profile 410 (not shown in Figure 16).
  • the two channel sections 1601, 1602 may be identical; in Figure 16 both channel sections are "U" shaped.
  • the channel sections may have different shapes and/or dimensions relative to each other, as long as the channel sections cooperate to captively retain the retention studs 1310.
  • the channel section 1602 may be formed as an integral part of the baseplate profile 410, and/or the channel section 1601 may be formed as an integral part of the baseplate lining 610.
  • Figure 16 An advantage of Figure 16 over the embodiment shown at Figure 13 is that it is not necessary to string the retention studs 1310 one-by-one into a blind runner 1300.
  • Figure 16 allows the blind material 1101 to be detached from the baseplate 110, even when the blind material 1101 is partially or completely extended across the panes 210, 220, by opening up the channel that is formed by the cooperation of the two channel sections 1601, 1602.
  • the blind material 1101 must be retracted onto the roller blind 1100.
  • FIG 17 shows a flashing system 1700 that may be used instead of the jamb flashing 800 shown at Figure 8.
  • the flashing system may be used in conjunction with the cill apron 810 (not shown).
  • the flashing system 1700 guides water along the jambs of the rooflight 100 (not shown) and then diverts this water substantially along paths 1799 towards the centre of the cill apron 810.
  • the flashing system 1700 comprises two corner pieces 1701, 1702 which, when in use, are mounted at the head end of the rooflight.
  • the corner pieces 1701, 1702 are substantially mirror images of each other.
  • the flashing system 1700 also comprises two diverter pieces 1711, 1712 which, when in use, are mounted at the cill end 300 of the rooflight.
  • the diverter pieces 1711, 1712 are also substantially mirror images of each other.
  • the corner pieces 1701, 1702 are interconnected by a head piece 1720.
  • the corner piece 1701 is connected to the diverter piece 1711 by a jamb piece 1731; the corner piece 1702 is connected to the diverter piece 1712 by ajamb piece 1732.
  • the jamb pieces 1731, 1732 are substantially mirror images of each other.
  • Figure 18 shows a cross section through the jamb piece 1732 and through the baseplate flange 130; the view of Figure 18 corresponds generally to region XVIII of Figure 8. Also shown is the slot 1000 which extends around the exterior perimeter of the baseplate flange 130.
  • the jamb piece 1732 is similar to a "U" shaped channel but rotated through 90°.
  • a jamb slot portion 1801, of the jamb piece 1732 fits inside the slot 1000.
  • Silicone sealant (not shown) may be used to seal the jamb slot portion 1801, and hence the jamb piece 1732, to the baseplate flange 130.
  • roofing felt 1810 (not shown by Figure 17) that is clipped onto the jamb piece 1732.
  • One end of the roofing felt is secured by clips 1820, the other end runs underneath the tiles (not shown), or other roofing material, of the roof into which the rooflight 100 is installed.
  • the roofing felt 1810 is a piece of foam 1830 (not shown by Figure 17).
  • the foam 1810 reduces wind noise by bearing against the underside of the tiles to prevent wind from blowing underneath the tiles.
  • the foam is substantially triangular, with a flat surface positioned on the roofing felt 1810.
  • each diverter piece 1711, 1712 has an angled portion 1720 which acts to divert rainwater flowing down along the jambs towards the centre of the cill apron.
  • the angled portions 1720 are angled at 45°.
  • the two diverter pieces 1711, 1712 each have a respective portion 1720 for diverting water onto a cill apron 810 (see Figure 8, nor shown by Figure 17).
  • the portions 1720 are regions of the diverter pieces 1711, 1712 that are angled at 45° to the jambs of the rooflight 100.
  • the portions 1720 may have a different angle or alternatively the diverter pieces 1711, 1712 may omit the portions 1720 and so may be similar in shape to the two corner pieces 1701, 1702.
  • the head piece 1720 and the jamb pieces 1731, 1732 are plastic extrusions; the corner pieces 1701, 1702 and the diverter pieces 1711, 1712 are vacuum formed.
  • the corner pieces 1701, 1702 and diverter pieces 1711, 1712 are swollen during the vacuum forming process so that the extrusions of the head 1720 and jamb 131, 1732 pieces may be received inside the corner pieces 1701, 1702 and diverter pieces 1711, 1712.
  • the flashing system 1700 is modular which allows it to be installed to rooflights 100 of a variety of different sizes. Firstly, an extrusion is cut to the appropriate length to form the head piece 1720 and the jamb pieces 1731, 1732. Secondly, silicone sealant, in the form of a viscous liquid, is inserted into the slot 1000 around the perimeter of the baseplate flange 130. Thirdly, the ends of the head piece 1720 and the jamb pieces 1731, 1732 are then coated with an adhesive or a plastic cement.
  • the head piece 1720 and the jamb pieces 1731, 1732 are then assembled together with the corner pieces 1701, 1702 and diverter pieces 1711, 1712, by pushing them into the silicone and bonding the head piece 1720 and the jamb pieces 1731, 1732 to the corner pieces 1701, 1702 and diverter pieces 1711, 1712.
  • the slot 1000 may, instead of being angled as shown by Figure 10, be in a plane parallel to the panes 210, 220.
  • the flashing system 1700 may be pre-assembled and then slid, along the slot 1000, from the head end to the cill end 300 of the rooflight.
  • the head piece 1720 and the jamb pieces 1731, 1732 are dispensed with, and the corner pieces 1701, 1702 and the diverter pieces 1711, 1712 are made overlong.
  • the overlong corner pieces 1701, 1702 and the overlong diverter pieces 1711, 1712 are arranged to cooperate with each other without requiring the head piece 1720 and the jamb pieces 1731, 1732. Instead, the overlong corner pieces 1701, 1702 and the overlong diverter pieces 1711, 1712 are cut to the appropriate length and glued (or fastened) together.
  • the corner pieces (1701, 1702) and the head piece (1720) are provided as an integrated assembly, for example formed by vacuum forming; such embodiments are suitable for situations where rooflights will tend to have a standard width.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
EP07252551A 2006-06-22 2007-06-22 Dachlicht Withdrawn EP1870532A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0612413A GB2439319A (en) 2006-06-22 2006-06-22 Rooflight comprising a water deflector

Publications (2)

Publication Number Publication Date
EP1870532A2 true EP1870532A2 (de) 2007-12-26
EP1870532A3 EP1870532A3 (de) 2008-07-30

Family

ID=36803726

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EP07252551A Withdrawn EP1870532A3 (de) 2006-06-22 2007-06-22 Dachlicht

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Country Link
US (1) US20080034677A1 (de)
EP (1) EP1870532A3 (de)
CA (1) CA2593650A1 (de)
GB (1) GB2439319A (de)

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EP2204524A3 (de) * 2008-12-30 2013-11-27 VKR Holding A/S Ein Fenster oder Tür mit einer Rahmenkonstruktion mit einer Nut für ein Innenfutter
EP2669447A1 (de) * 2012-05-30 2013-12-04 Alutechnik Matauschek GmbH Fenster, insbesondere einflügeliges Klappflügelfenster für Dachflächen
EP2843150B1 (de) 2013-08-28 2015-12-23 FAKRO PP Sp. z o.o. Blendrahmen mit Beschlag für Dachfenster
EP3779091A1 (de) * 2020-02-03 2021-02-17 VKR Holding A/S Ein dachfenster
EP3783163A1 (de) 2020-02-03 2021-02-24 VKR Holding A/S Dachfenster
EP3779094A3 (de) * 2020-02-03 2021-04-07 VKR Holding A/S Ein dachfenster

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EP2204524A3 (de) * 2008-12-30 2013-11-27 VKR Holding A/S Ein Fenster oder Tür mit einer Rahmenkonstruktion mit einer Nut für ein Innenfutter
EP2669447A1 (de) * 2012-05-30 2013-12-04 Alutechnik Matauschek GmbH Fenster, insbesondere einflügeliges Klappflügelfenster für Dachflächen
EP2843150B1 (de) 2013-08-28 2015-12-23 FAKRO PP Sp. z o.o. Blendrahmen mit Beschlag für Dachfenster
EP3779091A1 (de) * 2020-02-03 2021-02-17 VKR Holding A/S Ein dachfenster
EP3783163A1 (de) 2020-02-03 2021-02-24 VKR Holding A/S Dachfenster
EP3779094A3 (de) * 2020-02-03 2021-04-07 VKR Holding A/S Ein dachfenster

Also Published As

Publication number Publication date
GB2439319A (en) 2007-12-27
GB0612413D0 (en) 2006-08-02
EP1870532A3 (de) 2008-07-30
US20080034677A1 (en) 2008-02-14
CA2593650A1 (en) 2007-12-22

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