What is the roof of this building used for?

At present, the roofs of high-rise residential buildings are mainly used by developers to install telecommunication facilities, elevators and other engineering equipment during construction, but now some owners of high-rise residential buildings will grow vegetables and raise livestock privately, especially a few owners rebuild the roofs for their own personal interests, which will damage the waterproof layer at the bottom of the roofs and lead to water seepage on the roofs, which will seriously affect the normal use of top-level owners. Under normal circumstances, in order to protect the personal safety of the owners and the interests of the residents in the community, property companies are not allowed to use the rooftop. Some property companies will pull wire ropes on the rooftop according to the actual situation and only dry clothes for the owners.