Structures for events, pylons & towers use techniques for movement that depend directly on the characteristicts of the structure and on the presence or absence of protective devices.
On roofs and inclines the risk of sliding and falling is real and the installation of collective protection is difficult, thus the use of PPE is an efficient means for workers comfort and safety.
Most of the time, whether the are temporary or permanent, these structures are not equipped with collective protection. The worker at height must therefore ensure his own safety with individual protection