Which of the following attire is prohibited under all circumstances for roofing systems?

Closed toed sandals are prohibited under all circumstances for roofing systems due to safety concerns. Roofing work involves numerous hazards, including sharp tools, heavy materials, and unpredictable weather conditions. Wearing proper footwear is crucial in minimizing the risk of injury. Closed toed sandals do not provide adequate protection for the feet; they lack support, can easily slip off, and do not guard against punctures or impacts.

In contrast, steel-toed boots, heavy-duty gloves, and hard hats are all considered essential safety equipment on roofing sites. Steel-toed boots protect against heavy objects falling on the feet; heavy-duty gloves ensure hand safety when handling materials; and hard hats protect the head from potential impacts. Each of these items plays a significant role in ensuring that workers are as safe as possible while performing their tasks, while sandals do not meet the necessary safety standards.