Which factor indicates whether a structure may be prone to collapse during a fire?

The construction type of a building is a critical factor in determining its susceptibility to collapse during a fire. Different materials and building techniques can significantly influence how a structure responds to heat, flame, and the overall fire conditions.

For instance, buildings constructed from steel may have a higher risk of sagging or collapsing under intense heat, as steel loses its structural integrity at elevated temperatures. Conversely, structures made of masonry or concrete may demonstrate greater fire resistance and stability under similar conditions.

Characteristics such as wall materials, roof design, and load-bearing elements all play a role in how the structure behaves when exposed to fire. Understanding these factors allows firefighters and officers to assess risks effectively during operations and strategize appropriately for fire suppression efforts or evacuation procedures.