When scaffolding is an option for taking safety measures, this is always preferred over the use of personal fall protection equipment. This does not have anything to do with the level of safety it provides, but with the maximum amount of working comfort it can give a user while performing their job.
For various renovation purposes, such as painting, a scaffold can be required. A regular type facade scaffold, such as the SafeScaffold from XSPlatforms, can easily be applied for maintenance work on the hull of a ship.