If you are a roofing contractor in the united states with at least one employee you are required to abide by osha safety standards.
Roof monitor osha.
Aerial lifts may be used to transport personnel so long as the requirements in 29 cfr 1926 453 which cover aerial lifts are met.
This is important because the osha definition is used as a basis for implementing low slope fall protection measures such as warning line systems and safety monitors.
Or on roofs 50 feet 15 25 m or less in width the use of a safety monitoring system alone is permitted 29 cfr 1926 501 b 10.
The monitor must be on the same roof as and be able to visibly observe all other employees for whom he she is responsible and must also be close enough to verbally communicate with the employees.
Osha defines a low slope roof as a roof having a slope of less than or equal to 4 inches of vertical rise for every 12 inches horizontal length 4 12 1926 500 b definitions.
If you work alone you are not required to abide by osha standards.
The safety monitor is always a competent person 29 cfr 1926 500 b.
29 cfr 1926 500 defines low slope roof as a roof having a slope less than or equal to 4 in 12 vertical to horizontal 29 cfr 1926 501 b 10 allows the use of a safety monitor on a low slope roof.
The safety monitor shall not have other responsibilities which could take the monitor s attention from the monitoring function.
The warning line system shall consist of ropes wires or chains and supporting stanchions 29 cfr 1926 502 f 2.