Which type of fire involves ordinary solid combustible materials?

Class A fires involve ordinary solid combustible materials such as wood, paper, cloth, and certain plastics. These types of materials are commonly found in residential and commercial buildings and are characterized by their ability to ignite easily and burn steadily.

When addressing Class A fires, the most effective extinguishing agents are water and certain types of foam, which can help cool the burning material and smother the flames. Understanding that Class A fires consist primarily of these ordinary combustibles is crucial for fire fighters, as it informs their approach to firefighting tactics and the types of extinguishing methods they should employ. This classification helps ensure that proper safety measures and strategies are followed in order to effectively manage and extinguish such fires.