Roof Operations- by Craig Reed.pdf

• Phases of Fire
HOT SMOLDERING PHASE
• If the free-burning state remains un-vented,
the fire progresses into the decay phase.
– Low oxygen levels with little or no flame production.
– Temperatures in excess of 1000 degrees.
– Dense black smoke, that pressurizes the area.
– Intense heat continues to vaporize lighter fuels.
– Gases are produced which greatly increase the
chance of a backdraft.