Roofs

DETAILED DESCRIPTION According to the invention there is provided an eaves beam for use in constructing a roof, especially a conservatory roof, the eaves beam having a channel therein for receiving a bolt for securing a glazing bar to the eaves beam, the bolt having a head pivotable in said channel in order to vary the angle of the glazing bar relative to the eaves beam.
The invention further provides a roof structure comprising roofing sheets supported between glazing bars and having an eaves structure comprising an eaves beam having a channel therein for receiving a bolt for securing a glazing bar, the bolt having a head pivotable in said channel in order to vary the angle of the glazing bar relative to the eaves beam.
The eaves beam of the invention is preferably generally L-shaped in section providing a base and a side.
The base of the eaves beam need only have a single wall.
The base will generally be shaped for mounting on window frames forming the walls of a conservatory.
The side of the eaves beam is preferably twin walled.
Preferably its intended inner wall is at right angles to the base but its outer wall is preferably spaced further from the inner wall at the base than at its top.
The outer wall of the eaves beam is preferably at least partly arcuate.
The inner and outer side walls of the eaves beam may be connected by one or more webs.
At its top the eaves beam side has a head in which is provided the channel to receive the pivotable bolt.
The head of the eaves beam preferably has a top surface on which a glazing bar can rest at whatever angle it is secured to the eaves beam.
The top surface of the head of the eaves beam preferably extends onto an outwardly directed flange and is preferably arcuate.
The bolt for use in the invention preferably has a head that has an arcuate top surface and a planar bottom surface from which extends a threaded shank onto which threaded nuts can be fitted to secure a glazing bar through which the shank has been fitted.
The channel of the eaves beam preferably has an arcuate concave base and a relatively narrow top opening