A vehicle glazing unit includes a glazed element having an outer face, an edge face and an inner face, the glazing unit including, along at least a part of a bottom edge, a profiled bead including a groove for clip-fastening a covering piece on the profiled bead, the profiled bead including, as seen in cross section, an inner leg situated beneath the inner face of the glazed element, wherein the inner leg includes, at least in a bottom part of the profiled bead, at least one hole passing through the inner leg, the hole having a length of between 2.0 and 50.0 mm and a width of between 2.0 and 10.0 mm.