Replacement should be considered if the diameter is reduced by 6 % of the nominal rope diameter. When moisture is introduced to a metal surface, it rusts. But rouge is different from rust. It does not indicate that a wire rope is beginning to rust.

Elevator ropes must be replaced based on specific safety criteria rather than a simple calendar date, though they typically have a service life of 7 to 10 years depending on usage and maintenance. In 2026, inspectors look for "discard criteria" such as broken wires, excessive "crown wear," or a reduction in the rope's nominal diameter by more than 6%. Visual signs like "rouging"—a reddish-brown dust caused by internal friction and lack of lubrication—or a sudden increase in vibration and noise are immediate red flags. Safety codes, such as ASME A17.1, mandate that when ropes are replaced, the entire set must be swapped simultaneously to ensure even tension and wear across all cables. Regular quarterly inspections by a certified technician are the only way to accurately determine the remaining life of the suspension means. Failing to replace ropes that show signs of "valley breaks" or significant corrosion can lead to catastrophic traction failure, making proactive replacement a non-negotiable aspect of high-rise building management.