At what temperature does wood begin to off gas?

Wood begins to off-gas, which means it releases volatile gases as it is heated, starting around 500 degrees Fahrenheit. This process involves the decomposition of the wood material due to heat, leading to the breakdown of cellulose and lignin, which are the main components of wood. As these components break down, they release various gases that can ignite if they reach the right mixture with oxygen and are exposed to a spark or flame.

Understanding the off-gassing temperature is critical for firefighters, as it indicates when wood may become flammable, contributing to the fire's spread. Recognizing this temperature allows firefighters to anticipate potential fire behavior and take appropriate actions to control and combat the fire effectively.