Abstract: A glazing bar comprises sealing means for sealing against one side of each of two glazing units arranged in end by end relationship in a non-horizontal plane. An internal passage is provided in the glazing bar and this passage communicates with an end of the glazing bar. A condensation trap is provided along one edge of the glazing bar for collecting condensation running down the one side of the, in use, upper glazing unit, and an opening communicates the condensation trap with the internal passage, whereby condensation collected in the trap passes into the internal passage, from where it can drain away. A glazing assembly including such a glazing bar is also disclosed.