Abstract: Verge unit is a symmetrical tapered channel converging toward one end and diverging toward another end. The unit 1 has two frangible portions which are disposed inwardly at the divergent end the removal of one of which portions allows the unit to be converted into a right hand or a left hand unit for use on a right hand or left hand verge of a roof. The units are placed over the free ends of tiles on a verge so that each divergent end of a unit is overlapped by a convergent end of an adjacent unit, thus providing a stepped line following the line of overlapping tiles along the upper edge of the verge and a straight line running along the lower edge. Verge units may be used for covering the free ends of tiles on tiled roofs to provide an aesthetically pleasing finish to the verge ends of tiled roofs and to prevent the ingress of rain and snow between the tiles.