Duty holders should monitor the structures under their management and control for adequate stability to ensure employees and members of the public are not put at risk from structural collapse.
Structures should be able to resist extreme weather including high winds and surface water or run-off. They should be capable of withstanding dynamic forces and have solid foundations.
If unstable or likely to become unstable, a suitable large exclusion zone should be established around the structure until rectification works are completed.
Temporary bracing should be considered if the structure is incomplete or works may affect stability. Where lateral support from piers, cross-walls, floors and roof framework is missing or being altered, temporary bracing should also be used.
Temporary bracing or other stability controls should be designed by a competent person who is experienced in such works eg professional engineer.
To ensure work will not compromise stability, a competent person should be consulted before adding or making changes to or undertaking any structural work on the structure, or before excavating near the structure.