Systems for supporting a roof, e.g. for a carport or a canopy, wherein in particular the roof comprises at least one pv panel

A method for building a system for supporting a roof, e.g. for a carport or canopy, said roof comprising one or more PV panels, the method comprising the following steps:

• arranging a base frame on a foundation-free ground, wherein the base frame comprises a plurality of horizontal supports, wherein at least one of the horizontal supports is a multifunctional support which
• comprises concrete;
• comprises an internal electricity channel for an electrical base cable configured to be electrically connected to the PV panel,
• arranging a vertical support frame on the base frame, wherein
• the vertical support frame comprises one or more vertical supports,
• the vertical support frame is configured to support the roof,
• the base frame supports the vertical support frame, wherein the multifunctional horizontal support is a structural component.