Which risk increases during a prolonged siege if Roman legionaries fail to properly waterproof timber siege towers?

💡 Explanation

When timber is not waterproofed, moisture accelerates fungal decay because fungi metabolize cellulose in wood, leading to reduced structural integrity over time and increasing the risk of collapse. Therefore, structural collapse from fungal decay results, rather than mobility issues, camouflage compromises, or ballistic inaccuracies which result from wholly separate mechanisms.

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