What is true regarding folding stairs in structures without permanent access?

Folding stairs in structures without permanent access can present specific hazards, particularly when exposed to heat. When heated, the materials used to construct these stairs may become warped or stressed, leading to unexpected movement. This can cause the stairs to swing down or collapse suddenly, posing significant risks to anyone nearby, including firefighters. Understanding this potential behavior is crucial for safety during firefighting operations, as it emphasizes the need to proceed with caution and to assess the integrity of these structures before relying on their use. This awareness can help prevent injuries and ensure the safety of personnel during emergency situations.