Roof skylight with roof domes

Abstract

The present application discloses a roof skylight (1) having a rectangular glazing frame (8, 30) enclosing an upward opening of the skylight, the glazing frame (8, 30) supporting a panel (2) on a curb (6) extending upwards from a roof surface, wherein the panel (2) comprises at least two roof domes (3, 4, 26, 27) staggered in the vertical direction, the panel (2) being clamped together by means of a plurality of fasteners (10) extending through vertical openings in the panel (2), the panel (2) being provided with a spacer profile (19) extending between flanges (22, 24, 28, 29) of two of the roof domes (3, 4, 28, 29), the spacer profile (19) being provided with a plurality of openings for the plurality of fasteners (10).

Description

Background

[0001] Roof skylights with a plurality of roof domes arranged on top of each other to create one or more thermally insulating rooms between the roof domes are known in the prior art.

[0002] It is an objective of the present invention to provide such roof skylight wherein the manufacturing of the skylight can be simplified.Summary

[0003] The present invention relates to a roof skylight having at least two transparent roof domes, wherein the vertical distance between the two roof domes is adjusted by means of a spacer profile provided between flanges of the two roof domes. The vertical distance between the roof domes defines the thermally insulating characteristics of the room formed between the two roof domes, and by providing the spacer profile, a variety of roof skylight configurations with different thermal and visual features may be achieved with a more limited number of different roof domes, thus simplifying the manufacturing of such skylights and reducing the costs of production of a variety of configurations. In particular, the use of the spacer profile allows for two substantially identical roof domes to be stacked on each other and obtain suitable thermally insulating roof skylights.

[0004] Thus, the present invention relates to a roof skylight having a rectangular glazing frame enclosing an upward opening of the skylight, the glazing frame supporting a panel on a curb extending upwards from a roof surface, wherein the panel comprises at least two roof domes staggered in the vertical direction, the panel being clamped together by means of a plurality of fasteners extending through vertical openings in the panel, the panel being provided with a spacer profile extending between flanges of the two roof domes, the spacer profile being provided with a plurality of openings for the plurality of fasteners.

[0005] The roof domes may preferably be made from polycarbonate or from Poly(methyl methacrylate) (PMMA), and the panel is preferably transparent or translucent to allow for daylight to enter into the building provided with the roof skylight.

[0006] The spacer profiles has preferably a height in the vertical direction in the range of 8 to 30 millimetre, such as in the range of 10 to 20 millimetre. The width of the spacer profile is preferably in the range of 35 to 70 millimetre, such as in the range of 40 to 60 millimetre.

[0007] In one embodiment of the roof skylight, the two roof domes with the spacer profile in between are substantially identical by which is understood that the two roof domes at least in the rectangle between the flanges are of identical curvature and may be produced by means of the same pressing mold.

[0008] The roof skylight may further comprise a plurality of fastener screws extending through a plurality of the fasteners and into the glazing frame.

[0009] Furthermore, the glazing frame may comprise a profile provided with a recess in an upper surface facing the panel, the recess being of a tapering cross-section for guiding the position of the fastener screws when being driven into the glazing frame. Hereby, a simple and almost fool-prove mounting of the panel on the glazing frame, in particular on-site at the roof is obtained.

[0010] The upper of the two roof domes may comprise a dome skirt integrated with the roof dome so as to prevent rain water from entering into the roof skylight.

[0011] The spacer profile is preferably provided with a first gasket on a lower side thereof, the first gasket abutting the flange of a lower of the roof domes, and a second gasket on an upper side of the spacer profile, the second gasket abutting the flange of an upper of the roof domes.

[0012] The spacer profile is preferably made from polymer such as polyvinylchloride (PVC). PVC is a highly stable polymer also when subjected to UV light and is readily reuseable.

[0013] The spacer profile may in one embodiment comprise an outer shell made from a thermoplastic polymer or a thermoplastic polymer composition, the outer shell defining an internal cavity filled with substantially the same foamed thermoplastic polymer or thermoplastic polymer composition from which the shell is made. Hereby, the recycling of the spacer profile insulated with the foamed material is simple and a separation of material is not required. The polymer is preferably polyvinylchloride (PVC).

[0014] In another embodiment, the spacer profile consist of a foamed polymer, such as polyvinylchloride (PVC).

[0015] A panel gasket is preferably arranged between the lower surface of the flange of the lowest roof dome and the upper surface of the glazing frame, the gasket extending in the longitudinal direction of the glazing frame between the transversal position of the fasteners and the upward opening of the roof skylight.

[0016] The panel of the roof skylight may further comprise one or more plane sheets arranged below the lowest dome, and wherein a gasket is arranged between the lower surface of the flange of the lowest roof dome and the upper surface of the uppermost plane sheet, the gasket extending in the longitudinal direction of the glazing frame between the transversal position of the fasteners and the upward opening of the roof skylight. The plane sheets provide further thermal insulation, and the gasket ensures that humidity from the outside, such as rain, is prevented from entering between the roof domes and the plane sheets.

[0017] The fasteners may in a preferred embodiment comprise a hollow binding screw through which the fastener screws can extend, the binding screws comprising upper and lower bearing surfaces for abutting an upper outer surface and lower outer surface of the panel, respectively. Such binding screws allow for the panel to be assembled prior to being mounted on the glazing frame, which usually takes place onside at the roof. In particular, the binding screw may comprise a female, internally threaded barrel and a male, externally threaded screw, and wherein each of the barrel and the screw have heads providing the upper and lower bearing surfaces.

[0018] The glazing frame may be hinged to the curb to allow for opening of the roof skylight and possibly use it as a smoke vent and / or an escape opening in case of e.g. a fire in the building.Brief description of the figures

[0019] Embodiments of the present invention are shown in the enclosed figures of which Fig. 1 is a cross-section of a roof skylight according to a first embodiment of the invention, and Fig. 2 is a cross-section of a roof skylight according to a second embodiment of the invention. Detailed description of the invention

[0020] The roof skylight 1 shown in cross-section in Fig. 1 comprises a panel 2 having two transparent roof domes 3, 4, of which the upper roof dome 3 is provided with a dome skirt 5 extending downwards at the edge of the roof dome 3 toward the roof surface (not shown).

[0021] The panel 2 is mounted on top of a curb 6 of the roof skylight 1. The curb 6 extends downwards to a roof surface (not shown) with an opening defined therein (not shown), which is enclosed by the curb 6. The upper edge 7 of the curb 6 is enclosed by a top frame 8 that is fastened to the curb 6. The top frame 8 extends down along a part of a sloping outer side 9 of the curb 6 to cover an upper edge of roofing felt (not shown).

[0022] A plurality of fasteners 10 comprise each a hollow binding screw 11 extending through the panel 2, i.e. the upper roof dome 3 and the lower roof dome 4. Fastener screws 12 extend through the hollow binding screws 11 and into the top frame 8, being a part of a glazing frame. The hollow binding screws 11 comprising upper 13 and lower bearing surfaces 14 for abutting an upper outer surface 15 and lower outer surface 16 of the panel 2, respectively.

[0023] The hollow binding screw 11 comprises a female, internally threaded barrel and a male, externally threaded screw, and wherein each of the barrel and the screw have upper 17 and lower 18 heads providing the upper 13 and lower bearing surfaces 14.

[0024] The lower roof dome 4 is not provided with a skirt, but could in other embodiments of the present invention also include a skirt. Furthermore, the panel 2 may in alternative embodiments be provided with more roof domes and / or one or more transparent plane sheets, e.g. plane sheets made from polycarbonate with air filled channels to improve the thermal insulating effect of the plane sheets.

[0025] Between the two roof domes 3, 4 is arranged a spacer profile 19 extending along the full circumference of the panel 2. The spacer profile 19 has openings provided therein (not shown) to accommodate the fasteners 10 extending through the panel 2. The purpose of the spacer 19 is to provide a vertical spacing between the two roof domes 3, 4 for adjusting the hight of the space between the roof domes 3, 4 and thereby the thermal insulation of the panel 2. The vertical height of the spacer 19 is 15 mm and it is in the present embodiment made from a hollow shell of polyvinylchloride (PVC). In alternative embodiments, the spacer 19 may be filled with an isolating foam, such as a PVC foam, or the spacer 19 made be fully manufactured in PVC foam.

[0026] The top frame 8, which in this embodiment constitutes the glazing frame, is provided with a recess 20 in an upper surface facing the panel 2, the recess 20 being of a tapering cross-section for guiding the position of the fastener screws 12 when being driven into the top frame 8.

[0027] The spacer profile 19 is provided with a first gasket 21 on a lower side thereof, the first gasket 21 abutting the flange 22 of the lower roof dome 4, and a second gasket 23 on an upper side of the spacer profile 19, the second gasket 23 abutting the flange 24 of the upper roof dome 3. A panel gasket 25 is provided between the panel 3 and the top frame 8.

[0028] A cross-section of a second embodiment of the present invention is shown in Fig. 2, which comprises four roof domes stacked on top of each other, including an upper intermediate dome 26 and a lower intermediate dome 27 between the upper 3 and lower 4 roof domes. The upper intermediate dome 26 and a lower intermediate dome 27 are identical roof domes with the spacer 19 situated there between in order to improve the thermal insulation effect of the panel 2. Here, the spacer 19 thus allows for use of identical roof domes 26, 27 on top of each other and preserve the thermal insulating effect of the panel 2.

[0029] The first gasket 21 on a lower side of the spacer profile 19 abuts the flange 28 of the lower intermediate dome 7, whereas the second gasket 23 on an upper side of the spacer profile 19 abuts the flange 29 of the upper intermediate dome 26. The roof skylight 1 of the second embodiment is provided with a second frame profile 30 situated on top of the top frame 8 to which it is connected with a hinge 31 so that the panel 2 can open from the curb 6.List of reference numbers

[0030] 1Roof skylight 2Panel 3Upper transparent roof dome 4Lower transparent roof dome 5Dome skirt 6Curb 7Upper edge of curb 8Top frame 9Outer side of curb 10Fasteners 11Hollow binding screw 12Fastener screws 13Upper bearing surface 14Lower bearing surfaces 15Upper outer surface of panel 16Lower outer surface of panel 17Upper head of hollow binding screw 18Lower head of hollow binding screw 19Spacer profile 20Recess 21First gasket 22Flange of lower roof dome 23Second gasket 24Flange of upper roof dome 25Panel gasket 26Upper intermediate dome 27Lower intermediate dome 28Flange of lower intermediate dome 29Flange of upper intermediate dome 30Second frame profile 31Hinge

Claims

1. A roof skylight (1) having a rectangular glazing frame (8, 30) enclosing an upward opening of the skylight, the glazing frame (8, 30) supporting a panel (2) on a curb (6) extending upwards from a roof surface, wherein the panel (2) comprises at least two roof domes (3, 4, 26, 27) staggered in the vertical direction, the panel (2) being clamped together by means of a plurality of fasteners (10) extending through vertical openings in the panel (2), the panel (2) being provided with a spacer profile (19) extending between flanges (22, 24, 28, 29) of two of the roof domes (3, 4, 28, 29), the spacer profile (19) being provided with a plurality of openings for the plurality of fasteners (10).

2. The roof skylight (1) according to claim 1, wherein the two roof domes (3, 4, 26, 27) with the spacer profile (19) in between are substantially identical.

3. The roof skylight (1) according to claim 1 or 2, further comprising a plurality of fastener screws (12) extending through a plurality of the fasteners (10) and into the glazing frame (8, 30).

4. The roof skylight (1) according to claim 3, wherein the glazing frame (8, 30) comprises a profile provided with a recess (20) in an upper surface facing the panel (2), the recess (20) being of a tapering cross-section for guiding the position of the fastener screws (12) when being driven into the glazing frame (8, 30).

5. The roof skylight (1) according to any of the preceding claims, wherein the upper of the roof domes (3) comprises a dome skirt (5) integrated with the roof dome (3).

6. The roof skylight (1) according to any of the preceding claims, wherein the spacer profile (19) is provided with a first gasket (21) on a lower side thereof, the first gasket (21) abutting the flange (22, 28) of a lower roof dome (4, 27), and a second gasket (23) on an upper side of the spacer profile (19), the second gasket (23) abutting the flange (24, 29) of an upper roof dome (3, 26).

7. The roof skylight (1) according to any of the preceding claims, wherein the spacer profile (19) is made from polymer such as polyvinylchloride (PVC).

8. The roof skylight (1) according to claim 7, wherein the spacer profile (19) comprises an outer shell made from a thermoplastic polymer or a thermoplastic polymer composition, the outer shell defining an internal cavity filled with substantially the same foamed thermoplastic polymer or thermoplastic polymer composition from which the shell is made.

9. The roof skylight (1) according to claim 8, wherein the polymer is polyvinylchloride (PVC).

10. The roof skylight (1) according to claim 7, wherein the spacer profile (19) consist of a foamed polymer, such as polyvinylchloride (PVC).

11. The roof skylight (1) according to any of the preceding claims, wherein a panel gasket (25) is arranged between the lower surface of the flange of the lowest roof dome and the upper surface of the glazing frame (8, 30), the gasket extending in the longitudinal direction of the glazing frame (8, 30) between the transversal position of the fasteners (10) and the upward opening of the roof skylight (1).

12. The roof skylight (1) according to any of claims 1 to 11, wherein the panel (2) comprises one or more plane sheets arranged below the lowest dome (4), and wherein a gasket is arranged between the lower surface of the flange (22) of the lowest roof dome (4) and the upper surface of the uppermost plane sheet, the gasket extending in the longitudinal direction of the glazing frame (8, 30) between the transversal position of the fasteners (10) and the upward opening of the roof skylight (1).

13. The roof skylight (1) according to any of the preceding claims, wherein the fasteners (10) comprise a hollow binding screw (11) through which the fastener screws (12) can extend, the hollow binding screws (11) comprising upper (13) and lower (14) bearing surfaces for abutting an upper outer surface (15) and lower outer surface (16) of the panel (2), respectively.

14. The roof skylight (1) according to claim 13, wherein the hollow binding screw (11) comprises a female, internally threaded barrel and a male, externally threaded screw, and wherein each of the barrel and the screw have heads (17, 18) providing the upper and lower bearing surfaces (13, 14).

15. The roof skylight (1) according to any of the preceding claims, wherein the glazing frame (8, 30) is hinged to the curb (6).

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