Fall protection on a low-slope roof
Falls 5 min 29 CFR 1926.501
Why it matters
A low-slope roof rises no more than 4 inches in 12 inches of run, and the edge can still be 6 feet or more above the next level. You need a guardrail, a net, or fall arrest. A warning line is not enough by itself. A safety monitor only watches the crew and warns them.
The talk
You are in the middle of a wide roof tearing off or laying membrane. The roof rises no more than 4 inches in 12 inches of run, so it feels like a floor. People stand up, carry felt, and talk while they walk. There is no wall at the edge. The ground or the next level is 6 feet or more below that edge. A string of flags is stretched somewhere behind the work, and someone calls that string the protection. A second person is supposed to watch the crew, but they are also pulling sheets. A roof that does not feel steep can still drop you off the side.
A low-slope roof rises no more than 4 inches in 12 inches of run. At 6 feet or more above a lower level you still need fall protection. Options include a guardrail, a net, or a personal fall arrest system. A warning line can be used only with the method the standard allows: with a guardrail, a net, or fall arrest, or with a safety monitor. A warning line by itself is not always enough. A safety monitor's only job is to watch the crew and warn them. The monitor does not lay felt, run other work, or do anything that takes their eyes off the crew. On roofs 50 feet or less in width, a safety monitor alone may be used. If you do not know the width, do not plan on a monitor alone. Ask which allowed method this roof is using.
Before anyone goes up today, say whether this roof rises more than 4 inches in 12, and whether the edge is 6 feet or more up. Name the protection: guardrail, net, or personal fall arrest. If you are using a warning line, say what it is paired with. The line alone is not the whole plan. If you are using a safety monitor, that person only watches and warns. They do not pull sheets while they watch. On a roof 50 feet or less in width, a safety monitor alone may be used. Know the width before you count on that. The monitor stands where they can see the crew and warns anyone who gets too close to the edge. If the monitor has to leave, work near the edge stops until someone is watching again. Tell the foreman if the line is down or the monitor is doing another job.
Key points
- A low-slope roof rises no more than 4 inches in 12 inches of run.
- At 6 feet or more you still need fall protection.
- Use a guardrail, a net, or a personal fall arrest system.
- A warning line is used only with a method the standard allows.
- A warning line by itself is not always enough.
- A safety monitor only watches the crew and warns them.
- On roofs 50 feet or less in width, a safety monitor alone may be used.
Do this
- Confirm the roof rises no more than 4 inches in 12 before you use these methods.
- Protect any edge that is 6 feet or more above a lower level.
- Pair a warning line with a guardrail, a net, fall arrest, or a safety monitor.
- Give the monitor no job except watching and warning.
- Use a monitor alone only on a roof 50 feet or less in width.
Do not do this
- Do not skip fall protection because the roof does not feel steep.
- Do not treat a warning line by itself as always enough.
- Do not let the monitor lay roofing while they are supposed to watch.
- Do not use a monitor alone without knowing the roof is 50 feet or less in width.
- Do not keep working near the edge if the monitor walks away.
Talk about it
- Is this roof low-slope, no more than 4 inches in 12, and is the edge 6 feet or more up?
- What method are we on today: guardrail, net, fall arrest, a warning line with an allowed partner, or a monitor?
- If we use a monitor, who is it, and will this roof's width allow a monitor alone?
Listens with this phone's voice. Nothing is sent out.
Send to the crew
The crew link opens the talk so each person can read it and sign on their own phone.
Scan at the jobsite. It opens the crew sign-off.