Which side should be covered first when dealing with fire exposures?

When managing fire exposures, the priority is to protect the leeward or downwind side first. This approach is essential because the leeward side is the area that is most at risk of being affected by heat, flames, or embers carried by the wind. By addressing the leeward side initially, firefighters can help minimize the chances of the fire spreading further and prevent ignition of nearby exposures that may be vulnerable.

This method is grounded in wind behavior and fire dynamics. In a firefighting context, the wind direction significantly influences the spread of fire, so tackling the side heated by the wind first can aid greatly in controlling the situation. In contrast, focusing on the windward side can lead to a more vulnerable and chaotic scenario, as it does not necessarily address the immediate threat posed by embers or heat transfer on structures located downwind.

Covering both sides simultaneously or prioritizing the roof may not provide the effective containment needed, as neglecting the most at-risk areas can exacerbate the situation. Thus, the strategy of prioritizing the leeward side aligns with best practices in fire suppression tactics.