Abstract: An installation for covering vehicles or other goods includes a first covering structure that defines a first opening for entry of vehicles or devices moving the goods, a second covering structure located under the first structure and defining a second entry opening, the first and the second covering structures being self-supporting, or one being self-supporting while the other one not, at least at its top, wherein at least one of the first or second covering structure is configured to laterally slide along arcs for causing the installation to transition between a first closing condition, in which one of the covering structures closes the opening of the other structure to define a covered space that is closed and separated from the external environment, and a second opening condition, in which the first and the second opening are at least partially radially aligned, thus defining an entry/exit passage into/from the covered space.