Walking on the edge of a tall building roof is a high-risk activity and you must pay great attention to safety. The following suggestions are for reference, but please be sure to comply with the relevant laws and regulations and work safety standards in your area, and follow the guidance of professionals when necessary: 1. Adequate preparation and training: • Before performing any high-altitude work, you should receive special high-altitude safety training and be familiar with emergency response measures. • Understand the on-site environment, roof structure and possible sources of danger. 2. Equip with appropriate safety protection equipment: • If conditions permit, be sure to use fall protection equipment such as safety belts, safety ropes and fixing devices, and ensure that these equipment are in good condition. • Check whether there are guardrails or other physical protection measures on the edge of the roof. If not, "close" or set up temporary protection measures. 3. Weather and environmental factors: • Avoid activities in strong winds, heavy rain or other severe weather conditions, as these conditions will significantly increase the risk of slipping and imbalance. • Pay attention to the possible accumulation of water, oil stains or other risk factors that may cause people to slip on the roof. 4. Stay focused and calm: • Be sure to concentrate while walking and avoid using mobile phones or other distracting behaviors. • Walk steadily and avoid running, jumping or making movements that may cause imbalance. 5. Comply with relevant regulations and warning signs: • Strictly comply with the safety management regulations and operating procedures on site. • Pay attention to the warning signs and railing instructions on site, and never cross the guardrail or enter unauthorized areas. 6. Emergency plan and communication guarantee: • Develop and understand the emergency plan before taking action to ensure that you know how to evacuate quickly and call for help in time when you encounter danger. • Keep communication open, and if necessary, use a walkie-talkie or carry a device that can quickly call for help. In general, walking on the edge of a high-rise roof is extremely risky. Unless it is necessary for work and strict safety measures are taken, it is not recommended to carry out such activities. Safety should always come first, and ensuring the safety of yourself and others is the most important thing.