Balloon Hall in Barajevo has been completed for the needs of a secondary school, however many sports clubs which up to now had no adequate place for training will be able to use it. Balloon is made of steel rails covered by PVC waterproof membrane. The hall has PPZ (Fire Protection System) attest and occupies the surface of 800m2. A certified “multi sport” pad was set up while the access to the hall is secured both from the outside and from the inside of the school.