A buildup of creosote is the main reason why it’s important to have your chimney cleaned and inspected annually, but did you know that there are three degrees, or stages, of creosote?
Soot: While not dangerous, soot is flammable and spreads easily, leaving dirt stains in your home and potentially causing respiratory illnesses.
Creosote flakes: If soot isn’t addressed in a timely manner, over time it can morph into larger flakes, which are highly flammable and more difficult to remove.
Tar creosote: Severe disrepair. At this stage, the creosote coalesces to form a thick, extremely flammable paste along the walls of the chimney. The tar releases gasses, which remain in the chimney flue until a fire is lit. At that point, the gasses as well as the tar will catch fire almost immediately.