Final answer:
Emergency board-up should be done with minimal additional damage, with the uptake of brick and steel in construction enhancing structure fire resilience.
Step-by-step explanation:
Emergency board-up of fire-damaged structures should be done with minimal additional damage. This cautious approach to stabilization is crucial in maintaining the integrity of the structure post-disaster and ensuring safety. After significant events like urban fires, it became apparent that building materials play a key role in how a structure withstands such incidents. The transition from wood to brick and steel structures reflects an understanding of this and represents a significant step forward in fire prevention and building durability, which minimizes additional loss in future fires.