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Falls from height are the major cause of death
and injury when working on roofs.
Hazards to consider in managing fall risks
include:
unprotected edges
fragile surfaces, skylights, holes or vents
weather conditions such as wind and rain
(for example being blown over the edge
or slipping on a wet roof surface)
trip hazards (for example roof
components and protrusions), and
overbalancing or losing grip on steep
pitched or sloping roofs.

Falls from even low heights can leave workers
with permanent and debilitating injuries such
as fractures, spinal cord injuries, concussion
and brain damage. The risk of serious injury
or death from a fall increases significantly as
working heights increase

For more information about safety, please refer to this pdf:
https://www.safeworkaustralia.gov.au/...