Section 17-19. Scaffolds extending onto the roof

When scaffolding extends onto a roof or the top of another structure, account shall be taken of its intended use, to ensure that those who use it as a work platform or for access, are not at danger of injures from falls or falling objects.
If the top scaffold deck is used for work at cornices and access to the roof, the access to the roof shall be safe. Work at cornices shall take place in a manner that does not expose workers to adverse physical strain.