Static structures (e.g. – buildings) – Cover with surface water receiver at eave or valley
Reexamination Certificate
2000-02-17
2001-07-17
Friedman, Carl D. (Department: 3635)
Static structures (e.g., buildings)
Cover with surface water receiver at eave or valley
C052S092200, C052S093100
Reexamination Certificate
active
06260307
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention concerns roof construction and, in particular concerns glazed roof construction, such as for forming a conservatory.
Conservatory roofs are generally formed from glazing panels supported at their edges by glazing bars fixed between a ridge beam and an eaves beam. The glazing bars and eaves beams are usually made of aluminium and their contact is a source of cold spot formation that can lead to condensation formation within the conservatory, which is undesirable.
An object of this invention is to improve thermal properties for a conservatory roof.
SUMMARY OF THE INVENTION
According to this invention is proposed a thermal break be interposed between glazing bars and an eaves beam in forming a conservatory roof.
The preferred eaves beam for use in the invention is generally L-shaped having an upstand and a base plate. The upstand may be double walled. The upstand preferably has an enlarged head. The eaves beam preferably has at least one location for attachment of internal cladding and at least one location for attachment of guttering or of brackets for supporting, uttering. The base plate in use sits on a supporting structure, such as a wall or window frames.
The thermal break is preferably in the form of an insulator strip of plastics material that lies on the eaves beam. The insulator strip is preferably a snap fit onto a head of the eaves beam. For example, the eaves beam head may have lips on opposite sides over which resiliently deformable sides of the strip can snap fit.
The head of the eaves beam preferably has two alternative areas on which glazing bars can rest depending on the roof pitch. The insulator strip matches those areas in profile but it is preferred that those areas of the insulator strip have ribs or the like on its underside to space the strip from the eaves beam to improve insulation properties.
The head of the eaves beam preferably has a depression therein to receive and guide fixing screws for securing the glazing bars to the eaves beam. That depression preferably has a roughened, say serrated surface, to provide grip for the screw point as it is being screwed through a glazing bar into the eaves beam.
The insulator strip preferably also has on its intended outer end, i.e. relative to the conservatory, a deformable web for bridging any gap between the eaves beam and the overlying glazing bars or panels.
The insulator strip also preferably provides a location for attachment of the internal cladding to cover the eaves beam. The insulator strip may have a downwardly open slot to receive a top edge of a cladding piece. The eaves beam may have a rib, such as of the so-called fir-tree type that fits into a channel or slot formed on the intended hidden face of the cladding.
The base plate of the eaves beam may also have a sealing strip applied thereto, the sealing strip having a deformable web that bridges between the base plate and the underside of guttering attached to the eaves beam. The sealing strip may also have a downstand to hide the junction between the base plate of the eaves beam and the supporting structure.
REFERENCES:
patent: 4015388 (1977-04-01), Hemminger
patent: 4750310 (1988-06-01), Holcombe
patent: 5144776 (1992-09-01), Hetzel et al.
patent: 5209031 (1993-05-01), Tavano
patent: 5797225 (1998-08-01), Ishikawa
patent: 6000176 (1999-12-01), Lancaster
patent: 6026615 (2000-02-01), Richardson
patent: 93 03883U (1993-07-01), None
patent: 370988 (1990-05-01), None
patent: 526785 (1993-02-01), None
patent: 559292 (1993-09-01), None
patent: 2165878 (1986-04-01), None
patent: 2236791 (1991-01-01), None
patent: 2257726 (1993-01-01), None
Friedman Carl D.
Rockey Milnamow & Katz Ltd.
Ultraframe (UK) Limited
Varner Steve
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