Coversun is a patented modular roofing system built with aluminum and steel sections capable of fully integrating Micron photovoltaic modules in industrial, commercial, and artisanal buildings constructed with prefabricated elements and with special Y-type prestressed reinforced concrete beams. A project is considered to entail architectural integration whenever fixed, integration photovoltaic modules are built and, in reconstruction, whenever the photovoltaic component totally or partially replaces the building element.