Which risk increased for Roman legionary cohorts during sieges when constructing vineae (mobile siege sheds) from green wood?

💡 Explanation

When green wood was used, the significantly higher moisture content added substantial weight because water has a relatively high density, impeding mobility and placing strain on personnel. Therefore, increased weight becomes the primary risk, rather than structural weakness, fungal decay or elevated flammability which are secondary concerns given the short-term use.

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