A water barrier trim has a base, a top flange, and an overhang section. The base has at least one ridge extending away from the base in a first direction and a projection extending in the first direction. The top flange section is positionable adjacent to the base. The overhang section is positionable adjacent to the base and defines a drip cap. The at least one ridge is sized and configured to rest on a top of a trim board. The projection is sized and configured to fit into a slot defined in the top of the trim board to provide an interference connection.