The project is included in a set of researches born in Salento from the collaboration between the Architecture Laboratory directed by the architect Toti Semerano and Italgest Ricerca, a company that develops innovative projects for the Italgest group in the field of renewable energies.
The objective of this research is to elaborate new integrated processes which, starting from the assumption of a necessary and profitable coexistence between architecture and technological innovation, lead to the elaboration of new and complex solutions which give satisfactory answers both to the need improvement in the efficiency of buildings than the desire to raise the quality of urban ambitions.
The project combines the simplicity of the structural and plant engineering solutions, in order to contain costs and make the package accessible both from an economic and technical point of view, with the need to guarantee high architectural quality and contemporary design.
The repetition of the basic module in successive bays, in fact, allows, thanks to the variable inclination of the roofing pitch, to create a fluid and continuous ribbon, which can wrap around buildings of various shapes and types like a light and curved sheet. The curvature of this ribbon can be determined both on the basis of formal requirements and for technical reasons, by orienting the surface with the aim of obtaining the maximum possible exposure of the photovoltaic panels that cover it.
The set is made up of three elements: a self-supporting sunshade structure in corten steel, which is the expression of a formal research on the possibility of producing variation in architecture through the assembly of identical standard elements; an energy production plant with photovoltaic modules that integrates with the first, contributing to its formal definition; a passive green wall, with a total water recovery system, which enriches the quality of the work by contributing to microclimate control. The self-supporting structure, which performs both the shading function and the support function for the photovoltaic panels, is primarily a large sculptural element that redefines the shape of the building and projects its spaces outwards, creating a public space. At the same time, it is a constructive prototype in which an always identical basic element, studied starting from onestellar shape, is assembled according to elementary rules producing an extremely variable design in which repetition becomes illegible. Furthermore, its triangular-based structure means that the assembly of 'flat' modules can take place in three dimensions, overcoming the dualism between the supporting structure and cladding. The choice of construction material, corten, is linked both to the versatility of the material, which can be welded on site, freeing the formal research from construction constraints, and to its resistance to atmospheric agents, which allows maintenance to be reduced to a minimum.
The insertion of the photovoltaic modules on this structure obeys two rules: favoring the best orientation for the production of energy and regulating, with the distribution of solids and voids, the circulation of air through the structure to generate convective motions on the façade of the building which cool the structure and keep the temperature in the square in front controlled.
Finally, for the creation of the green wall, a collaboration was activated with the French botanist Patrick Blanc. Together with the French artist's technical collaborators, joined by local botanists, a field research was conducted through a sample of a green wall created in Lecce, which has been monitored for three years to empirically verify its total compatibility with the project.