When can we Cross-Country on a roof?

• A. Only When Weather is Calm
• B. Never
• C. After Specific Training
• D. If No Members Are Visible

Answer: (B)

The safety rule here is that crossing cross-country on a roof is never considered safe during vertical ventilation. A roof can be compromised by heat, fire damage, or hidden structural weaknesses, and a single step or a misstep can lead to a sudden collapse, a fall, or stepping through a weak section into a void. Conditions can change rapidly with fire growth, wind, or added loads, and there’s no guaranteed solid footing anywhere on a burning or recently heated roof, even if the weather seems calm or there are no visible crew members nearby. Since there’s no situation where those risks can be reliably mitigated, the only acceptable approach is to move along established, planned travel routes using ladders or other safe access methods, and maintain team integrity and communication.