A façade or roof structure in light weight construction having at least one film element made of at least one film or fabric layer which forms the outer walls of a weather-proof cavity which can be filled with a gas, at least one material layer for reducing the transmission of energy by radiation and/or for noise insulation being disposed on at least one side of the film or fabric layer. The material layer is almost totally enclosed by the film or fabric layer in order to protect against climatic conditions.