A perimeter barrier for a building structure includes a panel and a j-track coupled to a bottom of the panel. A top track and a z-vent are coupled to the building structure such that the top track and z-vent secure an upper portion of the panel. A top h-track is coupled to the panel and top track, and a bottom h-track is mounted to the panel and the j-track. In addition, a door is installed in the top h-track and the bottom h-track to provide access through the perimeter barrier to a space beneath the building structure. In addition, a kit for such types of components is disclosed.