Abstract: A power assisted ventilation system for a conservatory of the type having a roof extending away from a wall or other supporting structure that is mountable where the roof meets the wall of other supporting structure has a back plate mountable to the wall or to a glazing panel support means already on the wall and an apertured cover securable to the back plate.

Abstract: A hollow building element of plastic material for use in forming roof structures comprises one or more longitudinal ducts and having, at opposite sides thereof coupling members, whereby elements may be connected to each other directly or indirectly, wherein lower coupling members at opposite sides of the element are sized to meet with co-operating lower coupling elements of adjacent elements offset from a central axis parallel to adjacent element sides.

Abstract: A connecting piece is provided to be fitted where fascia boards are intended to meet, especially at corners of conservatory roofs. The connecting piece has a front face and a rear face, edges of the rear face being shaped to correspond to the outer profile of the fascia boards and means for retaining the connecting piece between adjacent ends of the fascia boards.

Abstract: A roof beam construction for use in constructing conservatory roofs comprises a glazing bar and an upper capping therefor having gaskets along edges thereof for sealing on a roofing panel to be supported by the glazing bar and means for locating the capping on the glazing bar, wherein the upper capping has its sides stepped inwardly and its gasket material on inwards ends of said stepped sides.

Abstract: An end cap system for a glazing system, and a glazing beam system, comprise a glazing beam, upper and lower cappings locatable on the beam, the end cap system comprises an end cap and a means for mounting the end cap on an end of the glazing beam in the form of a bracket securable to the glazing beam end, wherein the bracket and end cap are formed integrally, the bracket being separable from the end cap for attachment to the glazing beam.

Abstract: A roof beam for constructing a conservatory roof comprises a glazing bar (10) and upper and lower capping (12, 14/50) thereon. The glazing bar has a cross bar (16) having trough formations (26) at each end, whereby there is a recess under the cross bar. The cross bar can, therefore, accommodate both a lower capping (14) for a transom roof beam and a lower capping (50) for a hipped conservatory roof end.

Abstract: A roof structure comprises at least one ducted plastics panel having a top wall, bottom wall, and connecting walls, therebetween, said at least one panel being cut to a desired size and having an open space between the top and bottom walls and the last connecting wall, and an adaptor located in said open space, the adaptor having formations thereon for coupling to a glazing bar.

Abstract: A conservatory roof comprises an eaves beam, glazing bars mounted at one end on the eaves beam and supporting glazing panels therebetween, and an insulator strip between the eaves beam head and the glazing bars to provide a thermal break.

Abstract: A hollow building element (10) of plastics material comprises one or more longitudinal ducts (30) and has, at opposite sides thereof, coupling members (32,34), whereby elements are connected together directly or indirectly, wherein an upper coupling member at one side of an element is a hook like member and an upper coupling member at the opposite side of the element includes a latch for the hook-like member of another like element. Building structures are created by connecting together such building elements.

Abstract: A roof ventilation system, especially for a conservatory roof, comprises a cowl (22) attachable to a ridge component of the roof and an electrically operated rotor (24) within the cowl.

Abstract: A glazed roof has a ridge and at least one free ridge end, a ventilation path being provided through a ridge end component.

Abstract: A building structure, as for a conservatory roof, in which hollow building panels of a plastic material are connected side-by-side by upper and lower coupling members, between adjacent building panels. The coupling members receive aluminum reinforcing beams having longitudinal slots, in which the lower coupling members are held together. Each building panel has an integral cap, which covers the upper coupling members of two adjacent building panels for holding the adjacent building panels together while such a reinforcing beam is slid therebetween.

Abstract: A glazing bar used for forming a roof beam in a conservatory roof system has a generally inverted T-section. The T-section has an upstanding limb to which an upper capping may be fixed, and a cross bar with a central section and edges. The central section has an upper face defining a plane. The edges are shaped in the form of troughs extending below the central section and the plane to form a recess in the underside of the glazing bar. The central section has first parts extending at first angles way from each other and from the upstanding limb. The second parts, formed as continuous extensions of the first parts, diverge away from each other as they extend at second angles away from the first parts. The second parts form inner side walls for the troughs. The recess has outwardly extending faces formed by the inner side walls that diverge away from each other as they extend from the central section first parts.

Abstract: A conservatory roofing system is constructed of a ridge, eaves and glazing bars supporting glazing material between the ridge and eaves. The ridge, eaves and glazing bars are made of structural aluminium components with visible surfaces covered with plastics cladding members. Onto internal surfaces on the plastics cladding members are mounted timber components to give an appearance from the inside that the conservatory is made of timber.

Abstract: An eaves beam for use in constructing a conservatory roof has a channel therein for receiving a bolt for securing a glazing bar to the eaves beam, and a bolt received in the channel, the bolt having a head pivotable in the channel in order to vary the angle of a glazing bar secured by the bolt relative to the eaves beam.

Abstract: Structural members, such as glazing bars, are extruded from aluminium. Pockets are formed in the structural members to receive steel reinforcing elements.

Abstract: A hollow building element of plastics material comprises one or more longitudinal ducts and having, at opposite sides thereof, coupling members, whereby elements may be connected to each other, a coupling member at one side comprising a duct for receiving a reinforcing beam and having a ducted bottom wall.

Abstract: A system for connecting a jack rafter to a main beam for forming a conservatory roof comprises a first part mountable on the main beam and a second part connectable to the jack rafter, the first and second parts being pivotally connected, whereby they are movable to achieve a desired position for the jack rafter relative to the main beam.

Abstract: A valley construction for a conservatory roof comprises a pair of wing members connected together, each wing member providing at opposite sides of the valley locations for attachment of glazing bars.

Abstract: A glazing bar system for utilization within glass panel roofing. A support beam has upper and lower capping located thereon. An end cap is disposed along an end of the support beam so as to present a finished appearance when a lower end of the support beam is aligned along an eaves portion of a building structure. A bracket is secured to the end of the support beam by means of a screw inserted through a screw port of the support beam. The end cap having L-shaped projections forming two channels which allow the end cap to be slidingly engaged over ends of the bracket.