Class A fires refer to what type of materials?

Class A fires are characterized by the presence of ordinary combustibles, which typically include materials such as wood, paper, cloth, and some plastics. These materials ignite easily and burn readily, making them a primary concern in fire incidents. The classification is important for understanding the appropriate fire extinguishing methods and agents to use.

For instance, water is often used to combat Class A fires because it effectively cools the burning materials and can help to extinguish the flames. Recognizing the type of materials involved in a fire helps firefighters respond effectively, making this classification vital.

In contrast, the other categories deal with different types of materials, such as flammable liquids, electrical fires, and reactive metals, each requiring specific firefighting techniques and agents.