This is a Air-supported structure in Netherlands. To maintain structural integrity, the structure must be pressurized such that the internal pressure equals or exceeds any external pressure being applied to the structure (i.e. wind pressure). The structure does not have to be airtight to retain structural integrity—as long as the pressurization system that supplies internal pressure replaces any air leakage, the structure will remain stable. The amount of pressure required is a function of the weight of the material – and the building systems suspended on it (lighting, ventilation, etc.) – and wind pressure. A light weight but powerful high bay fixture is very important to this kind of Air-supported structure, in this case, XHB series are used to illuminate an indoor soccer field,
