Which safety measure is critical for a glazier working at heights?

The focus on fall protection equipment as the critical safety measure for a glazier working at heights is based on the significant risk of falls associated with this line of work. When a glazier is handling glass and installation materials at elevated levels, the potential for slipping, losing balance, or having objects fall can lead to severe injuries.

Fall protection equipment, such as harnesses, lanyards, and safety nets, is specifically designed to prevent falls from scaffolding, ladders, or rooftops. It ensures that if a fall does occur, the risks to the worker's safety are minimized. Regulations often require the use of such equipment on construction sites, emphasizing its importance in maintaining a safe work environment.

While wearing safety goggles is crucial for protecting the eyes from flying debris, and using a stable ladder is essential for proper access, these measures do not provide the same level of protection against the hazards of falling from heights. Additionally, having an assistant can enhance safety through teamwork but does not directly prevent falls. Therefore, the use of fall protection equipment stands out as the most critical measure for ensuring the safety of glaziers when working at heights.