Firefighters must understand the mechanism of building collapse, particularly in masonry construction, to ensure their safety and effectiveness during firefighting and rescue operations. Masonry structures, such as brick or concrete block buildings can be severely weakened by fire, water application, and structural loads. These materials are strong in compression but weak in tension, making them vulnerable to sudden collapse when exposed to high heat or when supporting elements fail. Recognizing warning signs like cracked walls, bulging sections, or spalling bricks allows firefighters to predict potential failures and adjust their tactics accordingly. Proper knowledge of collapse mechanisms helps firefighters make informed decisions on entry, ventilation, fire attack and rescue operations ultimately reducing risks and saving lives

I agree DE Ed Shadoin, firefighters must understand building collapse mechanisms, especially in masonry construction, to operate safely and effectively. Masonry materials are strong under compression but weak under tension, making them prone to sudden failure during fire or structural compromise. Fire, water, and added loads can quickly weaken these structures. Recognizing signs like cracks, bulging, or spalling helps firefighters anticipate collapse and adjust tactics. This knowledge supports safer decisions in entry, ventilation, fire attack, and rescue, ultimately protecting crews and saving lives.