How should exposure structures be treated during firefighting operations?

Applying a fog nozzle set to a minimum pattern when treating exposure structures during firefighting operations is an effective strategy. This method allows firefighters to apply a cooling effect on the surfaces of exposure buildings without overwhelming them with water. The fog pattern creates a fine mist that can effectively suppress heat while protecting adjacent structures from heat and radiant energy. This is crucial in preventing fire spread to nearby properties, which can be particularly important in urban environments where structures are in close proximity.

Using a fog nozzle also helps to not excessively saturate the ground or create unnecessary runoff, which can occur with a straight stream or heavier applications of water. It balances the need for protection with the operational limitations and structural concerns that firefighters must manage.

While direct water attack might be effective for the primary fire, it is not the best choice for exposure structures because it may not sufficiently mitigate the risk of radiant heat transfer. Evacuating nearby structures and applying minimal water as a last resort may address safety concerns but do not actively engage in protecting those structures, which could lead to greater damage. The focus on using a fog nozzle ensures a proactive approach to preventing fire spread while maintaining operational safety.