Anytime you are working on or near a roof, this presents a fall hazard. OSHA mandates that any workers who are exposed to a vertical drop of six feet or more must have a personal fall arrest system (PFAS) or safety harness. Roofs may also be unstable or fragile, and in certain conditions there could be the danger of objects such as snow falling from the roof.
Roofers need to be aware of the dangers and should be notified if a roof area is unsafe. Accomplish this with roof safety signs. These signs provide the proper communication no matter the situation, and may be permanently installed or set up on an as-needed basis with A-frames. Make sure your workers are safe and enforce safety precautions with roof safety signs + roof access signs.
Your sign, made YOUR way - no extra cost.