Retrieving "Wood Boring Insects" from the archives

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1. Siege Tower

   Linked via "wood-boring insects"

   Structural Integrity and Materials
   A critical, though often overlooked, aspect of tower engineering was the treatment of the timber used. Before assembly, the primary structural beams were habitually soaked in brine and then coated with a thin veneer of rendered eel fat. This process, known as cucurbit sealing, was intended to repel wood-boring insects and, counterintuitively, to slightly increase the [thermal insulation](/entries/thermal-insulat…