The One Axis Roof Solar Tracker is a tracking system that can be adapted to the specific needs of any cover or roof structure. Its main characteristics are lightness, robustness and the anchorage system that can be adjusted to fit the support material of the structure. The peculiarities of each rooftop call for an individualized study of each project. Its system, having a north-south rotation axis, moves the solar panels from east to west following a tracking system based on astronomic programming. It also has a “backtracking” feature and an automated programmable defence position. The increased production this tracker can reach varies depending on the geographical location, orientation and characteristics of each rooftop.