Abstract: An elongate connector for connecting a first building panel and second building panel, the connector comprising: a hollow and elongate recess defined by two spaced apart side walls separated by a top wall, the recess being arranged to receive a load bearing member positioned above the first building panel and wherein the top wall and side walls are arranged to be received into a channel of the second building panel thereby positioning and inter-connecting the second building panel above the first building panel; a flashing portion extending along the length of one of the side walls, said flashing portion depending downwardly from one of said side walls to lap over an edge portion of said one of the building panels.

Abstract: A modular building construction system comprising a plurality of panels, each panel having two spaced apart sheets; an insulating core portion positioned between said spaced apart sheets, wherein edge portions of the spaced apart sheets define a hollow cavity, the cavity extending along peripheral portions of the panel wherein the panel comprises a length (l) and a height (h) wherein top and bottom channel members face outwardly and extend along the length (l) of the panel and are positioned in respective hollow cavities along in-use top and bottom peripheral portions of the panel respectively; and wherein first and second opposite side channels face outwardly and extend along the height (h) of the panel and are positioned in respective hollow cavities along each of the lateral peripheral portions of the panel respectively and wherein during use the channel members are adapted to be interconnected with one or more building elements positioned along said peripheral portions.