What is the recommended blast hot zone distance in a high-rise fire?

The recommended blast hot zone distance in a high-rise fire is two floors above and two floors below the area affected due to the potential for vertical fire spread and blast effects in such structures. High-rise buildings have unique challenges, and factors such as wind, building design, and fire compartmentalization can influence how a fire behaves and spreads.

Setting the containment hot zone at this distance accounts for the variances in fire dynamics. It helps ensure that responding personnel can operate safely and effectively while minimizing the risk of exposure to potential blast effects, smoke, heat, or fire extension. This precautionary approach recognizes that high-rise fires can generate significant heat and pressure waves that may impact areas far beyond the immediate vicinity of the fire. By establishing a hot zone of two floors above and below, responders can maintain effective operational integrity and enhance their safety during firefighting operations in these complex environments.