In a window pane mounting arrangement, there is proposed an improved window moulding which can be neatly fitted to a clearance defined between the edge of the window pane and the peripheral flange of the window opening. The window moulding comprises an elongate band portion adapted to cover the clearance and a leg portion depending from the inboard surface of the band portion and disposed in the clearance. The improvement consists of openings in the leg portion to permit the flow of sealant therethrough to relieve pressure in the sealant while it cures, which pressure, if not relieved, would lift or otherwise adversely effect the positioning of the moulding.