Skylight system
A skylight system (10) including a prefabricated mounting frame (20) and a prefabricated hood assembly (25), adapted to assemble together to form a skylight (10).
The present invention relates to skylights adapted to be fitted to the roofs of buildings and, more particularly, to methods of construction and fitting of such skylights.
BACKGROUNDSkylights, let into roofing, have long been used to provide a source of light into the interior of a building. Skylights may be fixed or openable and may be adapted to provide ventilation as well as light. Skylights known in the industry suffer from a number of disadvantages.
At least some commonly available skylights of overseas manufacture may not conform to required standards of traficability, that is of being capable of supporting the weight of a person traversing the skylight, both in the strength of glass employed and the strength of frame construction.
Another problem commonly encountered in skylights intended to allow ventilation is that they do not adequately prevent the ingress of debris and in particular may not be proof against flying embers.
In addition, many available skylights require considerable on-site fabrication and are time consuming to install.
It is an object of the present invention to address or ameliorate at least some of the above disadvantages.
BRIEF DESCRIPTION OF INVENTIONAccordingly, in one broad form of the invention there is provided a skylight system including a prefabricated mounting frame and a prefabricated hood assembly, adapted to assemble together to form a skylight.
Preferably said prefabricated mounting frame comprises a rectangular arrangement of extruded sections.
Preferably said extruded sections are provided with bottom flange portions adapted to seat on the batten timbers of a sloping roof.
Preferably said extruded sections are provided with a pair of closely spaced projecting flanges adapted to accept and retain pre-assembled flashing elements attached to said extruded sections.
Preferably said flashing elements along the two sloping sides of said skylight, comprise roll-formed metal strips, said roll-formed strips adapted to interface with roof covering material.
Preferably said flashing elements along the two horizontal sides of said skylight comprise malleable metal strips.
Preferably said prefabricated mounting frame is provided with sprung retainer elements attached to each of the extruded elements forming the sides of said rectangular support structure.
Preferably said sprung retainer elements are in the form of bent metal strips with the lower ends of said strips forming an angle with said sides of said rectangular support structure, such that said lower ends deflect inwardly from said sides.
Preferably said extruded members are provided with an horizontal ledge extending outwardly from said extruded members, said horizontal ledge adapted to support a sealing strip, said sealing strip forming a perimeter seal around the top of said prefabricated mounting frame.
Preferably said prefabricated hood assembly includes perimeter capping, glass layers, internal sash frame, extruded seal elements and extruded clamping members.
Preferably said perimeter capping is fabricated from extruded elements adapted to provide framing of said glass layers and support for said clamping members.
Preferably said internal sash frame is retained within said perimeter capping by said clamping members, said clamping members provided with a clamping ledge adapted to engage in grooves provided in the outer faces of said internal sash frame.
Preferably said extruded seal elements provide support for said glass layers.
Preferably said glass layers are clamped between said perimeter capping, said extruded seal elements and said internal sash frame by said clamping members.
Preferably said clamping members are fastened to said perimeter capping by self tapping screws.
Preferably said prefabricated hood assembly is adapted for assembly wish said prefabricated mounting frame so that said internal sash frame locates within said prefabricated mounting frame; said clamping members seating on said perimeter seal.
Preferably said prefabricated hood assembly is retained in sealing engagement with said prefabricated mounting frame by means of said sprung retainer elements engaging in recesses provided in the outer surfaces of said internal sash frame.
Preferably said prefabricated mounting frame is provided with an extruded hinge section; said hinge section adapted to be a clip-on attachment to one of said extruded sections of said prefabricated mounting frame.
Preferably said hinge section includes an extruded lobe element, said lobe element being of substantially circular section and further including a convex extruded arcuate guide segment concentric with said lobe element.
Preferably at least one of said extruded elements of said perimeter capping of said prefabricated hood assembly includes an extruded hinge element of partially cylindrical form and a concave extruded arcuate guide segment concentric with said hinge element, said hinge element and said concave extruded arcuate guide segment adapted to mate with said lobe element and said convex extruded arcuate guide segment so as to allow rotation of said prefabricated hood assembly about said lobe element when one of said extruded hinge elements of said perimeter capping is assembled with said lobe element.
Preferably the degree of rotation of said prefabricated hood assembly is controlled by a latching mechanism within the limits of rotation allowed by said extruded lobe element, said extruded hinge element and said arcuate guide segments.
Preferably said prefabricated hood assembly is provided along one side of said perimeter capping with a raised cowling, said cowling provided with an opening facing out over said glass layers.
Preferably said cowling is provided with a hinged flap, said flap adapted to provide closure means for said opening.
Preferably said hinged flap is provided with extruded element along its upper edge adapted to mate with extruded element at the upper edge of said opening of said cowling, so as to allow said hinged flap to rotate between a first open and a second closed position.
Preferably the status of said hinged flap is changed from closed to open by means of the outstroke of a solenoid actuator.
Preferably the status of said flap is changed from open to closed by means of the instroke of said solenoid actuator and a return spring.
Preferably said cowling houses an electrically driven exhaust fan assembly.
Preferably said extruded seal element is of the form of an extruded strip, said strip provided with a plurality of co-extruded ridges on a first side of said strip and a projecting co-extruded tongue on an opposite side of said strip.
Preferably said co-extruded ridges are broached at intervals by a post-extruding operation to allow the passage of water condensate.
Preferably said extruded strip is provided with through holes, punched through said strip in a post-extruding operation to allow the egress of water condensate.
BRIEF DESCRIPTION OF THE DRAWINGSEmbodiments of the present invention will now be described with reference to the accompanying drawings wherein:
A first preferred embodiment of a skylight system 10 according to the invention will now be described with reference to FIGS. 1 to 4. A prefabricated mounting frame 20 is constructed from extruded sections 21 to form a generally rectangular support structure 22 as may best be seen in
Extruded section 21 is further provided with projecting flanges 14 adapted to receive flashing elements 15, 16 and 16A as shown in
In at least one preferred embodiment of the invention a silicon or other suitable sealant 52 is introduced into the space between the flanges 14 prior to fully inserting the flashing 15, 16 and 16A. In this process, the flashing is firstly inserted a short distance into the flanges and the sealant injected through a series of pre-drilled holes 51 from the inside of the frame as shown in the inset of
In a preferred embodiment of flashing 15 adapted for use along the two sloping sides 17 of skylight system 10, flashing 15 is fashioned out of malleable metal sheeting roll-formed to a profile adapted to suit the configuration of roofing material as shown in
In this first preferred embodiment, a prefabricated hood assembly 25 comprises a perimeter capping 26 formed of extruded elements 27 and internal sash frame members 28 forming a rectangular sash frame 29 within perimeter capping 26. The sections of sash frame members 28, along the two sloping sides and the high side of the frame are formed with raised portions 50 which act to nest glass layers 30 around three sides of the glass.
Glass layers 30 are held in a clamped position between perimeter capping 26 and sash frame 29 by means of clamping member 31. Clamping member 31 is provided with clamping ledge 32 which engages groove 33 of sash frame 29. Self-tapping screws 34 pass through holes 35 in clamping member 31 to engage with a projecting member 36 of extruded element 27.
In this instance, glass layers-30 are supported on extruded seal element 38 held in place by extruded tongue 43 located in groove 37 of sash frame member 28. As shown in
As explained in more detail below, extruded seal element 38 underlying the lower edge of glass layers 30 is provided with channels as shown in
Rectangular support structure 22 is provided along each of its four sides with sprung retainer elements 39, attached to the extruded sections 21 by fasteners 40. As can be seen in
It will be clear that with suitably sized components, prefabricated hood assembly 25 may be inserted into rectangular support structure 22 so that initially sprung retainer elements 39 will be deflected to allow the sash frame 28 to enter rectangular support structure 22 to a point where clamping members 31 are seated on sealing strip 44 and retainer elements 39 deflect inwardly to engage recess grooves 41 so as to lock sash frame 29 in position.
The angled sections of retainer elements 39 are provided with slots 43 as can be seen in
The method of construction of this first embodiment of the present invention, allows access to the internal surfaces of rectangular support structure 22 for the purpose of strapping support structure 22 to structural supporting members of the roof to which the skylight is to be installed.
With reference to
In at least one preferred embodiment of the invention the flashing elements 15, 16 and 16A are formed of “0” tempered aluminium sheet. This material is malleable but cannot be stretched during installation on site. For this reason the flashing 16A extending from the lower end 19 of support structure 22 is prepared prior to assembly by the pressing of corrugations or flutings 55 along its lower edge and extending approximately half the width of the sheet comprising the flashing element as shown in the inset of
This corrugating or fluting process in effect provides additional material along the lower edge of the flashing element. This additional material allows for the conforming of the lower portion of the flashing to the profile of the tiles by tamping blows with a suitable mallet.
Thus installation time is minimized by the ability to install rectangular support structure 22 and attached flashing elements 15, 16 and 16A and the simple insertion of the prefabricated hood assembly 25 once the rectangular support structure 22 is fixed in position.
Second Preferred Embodiment A second preferred embodiment of a skylight system according to the invention will now be described with reference to
Accordingly there is provided a rectangular support structure 122 fabricated from extruded sections 121 and provided with flange elements 123 to allow structure 122 to be positioned on roof battens 124. As for the first embodiment already described, the extruded sides of structure 122 are provided with projecting flanges 114 to allow the pre-assembly of flashing (not shown) along the two sloping sides of skylight system 100 and conventional malleable flat flashing 115 along the upper and lower horizontal sides.
Extruded sections 121 in this embodiment are so formed as to allow the clip-on attachment of an extruded hinge section 143. Preferably binge section 143 will be attached to the upper horizontal side of structure 122. Hinge section 143 is provided with an extruded hinge lobe 144 and arcuate guide section 145.
In this second preferred embodiment perimeter capping 126 is provided with extruded hinge trough 146 and extruded arcuate guide follower 147. Prefabricated hood assembly 125 includes upper sash frame 129 which clamps glass layers 130 against perimeter capping 126 by means of clamping member 131 and self-tapping screws 134.
With reference to
For installation of this second embodiment of the invention, the rectangular support structure 122 is firstly positioned and fastened to the roof structural members as was the case for the first embodiment described above. Prefabricated hood assembly 125 is then hooked into position with hinge trough 146 around hinge lobe 144 and rotated to its closed position. In use the aforementioned latching mechanism allows the opening of the hood assembly as desired.
Third Preferred Embodiment A third preferred embodiment of a skylight system according to the invention will now be described with reference to
Accordingly, in
As shown in
Again with reference to
Extruded Seal Element
With reference to
In a first procedure profile 300 is extruded of indefinite length as desired from elastomeric material such as rubber, neoprene or the like as shown in
In a fourth preferred embodiment of the present invention, a system 6f flashing is adapted specifically to the fitting of any of the skylights described herein above to a corrugated metal roof.
As also described above, the rectangular support structure is pre-assembled with upper and lower and side flashing elements inserted into the extruded flanges and sealed with a suitable sealant. The arrangement is shown in
As shown in
A similar arrangement is used to connect the lower end flashing element 316A to the sheeting of roof 325 with corrugated flashing element 340. Corrugated flashing element 340 is provided at its higher edge with fold over portion 341 adapted to mate with folded under portion 342 of the lower edge of flashing element 316A. The lower edge of corrugated flashing element 340 is prepared with corrugations to match those of the corrugated sheeting of roof 325.
It will be appreciated that the location of corrugated flashing elements 320 and 340 is determined by the corrugations of roof sheeting whereas the location of the skylight may be determined by the location of the timber structure of the roof. The fold over portions 321 with folded edge portion 330, and fold over portion 341 with folded edge portion 342 allows sideways adjustment of the connecting flashing elements and the pre-assembled skylight flashing.
The above describes only some embodiments of the present invention and modifications, obvious to those skilled in the art, can be made thereto without departing from the scope and spirit of the present invention.
Claims
1. A skylight system including a prefabricated mounting frame and a prefabricated hood assembly, adapted to assemble together to form a skylight.
2. The skylight system of claim 1 wherein, said prefabricated mounting frame comprises a rectangular arrangement of extruded sections to form a rectangular support structure.
3. The skylight system of claim 2 wherein, said extruded sections are provided with bottom flange portions adapted to seat on the batten timbers of a sloping roof.
4. The skylight system of claim 2 wherein, said extruded sections are provided with a pair of closely spaced projecting flanges adapted to accept and retain pre-assembled flashing elements attached to said extruded sections.
5. The skylight system of claim 4 wherein, said flashing elements along the two sloping sides of said skylight, comprise roll-formed metal strips, said roll-formed strips adapted to interface with roof covering material.
6. The skylight system of claim 4 wherein, said flashing elements along the two horizontal sides of said skylight comprise malleable metal strips.
7. The skylight system of claim 2 wherein, said prefabricated mounting frame is provided with sprung retainer elements attached to each of the extruded elements forming the sides of said rectangular support structure.
8. The skylight system of claim 7 wherein, said sprung retainer elements are in the form of bent metal strips with the lower ends of said strips forming an angle with said sides of said rectangular support structure, such that said lower ends deflect inwardly from said sides.
9. The skylight system of claim 3 wherein said extruded members are provided with an horizontal ledge extending outwardly from said extruded members, said horizontal ledge adapted to support a sealing strip, said sealing strip forming a perimeter seal around the top of said prefabricated mounting frame.
10. The skylight system of claim 1 wherein, said prefabricated hood assembly includes perimeter capping, glass layers, internal sash frame, extruded seal elements and extruded clamping members.
11. The skylight system of claim 10 wherein, said perimeter capping is fabricated from extruded elements adapted to provide framing of said glass layers and support for said clamping members.
12. The skylight system of claim 11 wherein, said internal sash frame is retained within said perimeter capping by said clamping members, said clamping members provided with a clamping ledge adapted to engage in grooves provided in the outer faces of said internal sash frame.
13. The skylight system of claim 10 wherein, said extruded seal elements provide support for said glass layers.
14. The skylight system of claim 10 wherein, said glass layers are clamped between said perimeter capping, said extruded seal elements and said internal sash frame by said clamping members.
15. The skylight system of claim 14 wherein, said clamping members are fastened to said perimeter capping by self tapping screws.
16. The skylight system of claim 1 wherein, said prefabricated hood assembly is adapted for assembly with said prefabricated mounting frame so that said internal sash frame locates within said prefabricated mounting frame; said clamping members seating on said perimeter seal.
17. The skylight system of claim 16 wherein, said prefabricated hood assembly is retained in sealing engagement with said prefabricated mounting frame by means of said sprung retainer elements engaging in recesses provided in the outer surfaces of said internal sash frame.
18. The skylight system of claim 15 wherein, said prefabricated mounting frame is provided with an extruded hinge section; said hinge section adapted to be a clip-on attachment to one of said extruded sections of said prefabricated mounting frame.
19. The skylight system of claim 18 wherein, said hinge section includes an extruded lobe element, said lobe element being of substantially circular section and further including a convex extruded arcuate guide segment concentric with said lobe element.
20. The skylight system of claim 19 wherein, at least one of said extruded elements of said perimeter capping of said prefabricated hood assembly includes an extruded hinge element of partially cylindrical form and a concave extruded arcuate guide segment concentric with said hinge element, said hinge element and said concave extruded arcuate guide segment adapted to mate with said lobe element and said convex extruded arcuate guide segment so as to allow rotation of said prefabricated hood assembly about said lobe element when one of said extruded hinge elements of said perimeter capping is assembled with said lobe element.
21-38. (canceled)
Type: Application
Filed: Nov 10, 2003
Publication Date: Dec 7, 2006
Inventor: Rodric Fooks (Riverstone)
Application Number: 10/534,189
International Classification: E04B 7/18 (20060101);