What is the risk associated with heat buildup in Type II Non-Combustible construction?

In Type II Non-Combustible construction, the materials used primarily do not contribute to combustion, which makes these buildings partially resistant to fire. However, one of the significant risks associated with this type of construction is heat buildup. When a fire occurs, the non-combustible materials can still absorb and retain heat. If the temperature rises sufficiently, it can lead to the weakening or failure of structural supports, including steel beams or reinforced concrete. This failure can occur because many structural materials may lose their strength at elevated temperatures, risking collapse and endangering lives during firefighting operations. Understanding this risk is crucial for firefighters as it influences tactics and strategies during fire response in such structures.