What fire suppression tactic should be avoided when protecting exterior exposures?

Utilizing water curtains is a fire suppression tactic that should be avoided when protecting exterior exposures due to its inherent limitations. Water curtains are designed to create a barrier of water droplets that can help protect against heat and radiant energy. However, when it comes to exterior exposures, such as neighboring structures or materials, the effectiveness of water curtains can be compromised by wind, which can disperse the water and reduce its ability to function as a protective barrier.

In addition, water curtains may not be as effective in extinguishing fires or preventing their spread, especially in scenarios where the fire is more intense or rapidly progressing. It is essential to adopt more robust and reliable tactics for protecting exterior exposures, such as using foam suppression or dry chemical agents, which are better suited to prevent ignition or control fire spread in surrounding environments.