Abstract: The present disclosure relates to components for properly waterproofing sections of a building and a flashing kit including the components with installation instructions. Such components may include lower corner flashings constructed to be engaged with an elongated lower flashing and installed, e.g., at a sill. In some embodiments, an elongated lower flashing may be attached to lower corner flashings by a rear hooked arrangement. Flashing components may include upper end cap flashings for placement on appropriate ends of an upper trim board. Upper end cap flashings may have side plate portions constructed to cover respective side facing portions of the upper trim. An elongated upper flashing may be placed on respective upper end cap flashings. Components presented herein may be appropriate for directing water from flowing and accumulating into sensitive areas of a building that would otherwise lead to water damage.