Wood is an excellent construction material. It’s been used for millennia to build everything from houses and boats, to weapons and instruments. It’s relatively cheap, easy to work and can be extremely strong and light. It grows naturally and, when managed properly, provides a never-ending source of material.

The other main characteristic of wood is that it burns. It’s as much a fuel source as it is a building material – and fire can’t tell the difference. But now, a non-toxic additive could make wood resistant to fire, without robbing it of the properties that make it so great in the first place.

Burning embers