Model ARCO TUNNEL from the ARCOSTRUTTURA family is an Arched Shaped Structure which has Round Arches on two sides. Such tensile membrane structures are based on the use of a creative (Patented) fabric connection which simplifies the construction and installation of building a complex roofs through very simple elements. Arched shaped structure is a typical curved structural member spanning an opening and serving as a support. Using an arch as the primary structure when there is a need for covering wide span areas is highly beneficial.