Coversun solves maintenance operations (washing and cleaning photovoltaic glass) in absolute safety and with the utmost convenience, offering the possibility for special gangways to be built to cross the roof beams. These are built, along the entire span of the Y-beams, with anti-slip, 3 mm thick hot-galvanized steel floor plate, allowing a clearance of approximatively 600 mm for pedestrians. Like for the rest of the entire system, no holes or wells are required in the prefabricated structure to mount the gangway either. Protecting the safety and health of maintenance workers is, along with product serviceability, one of the priorities we have set in producing the system. For this reason, a lifeline system that guarantees a safe fall-arrest, specially designed for the structures onto which it will be mounted, may be installed on demand.