Fire ratings are used to classify construction products according to their flammability and combustibility.The European standard EN 13501-1 distinguishes between the classes A to F, separating non-combustible, flame retardant, normally flammable and easily flammable materials. Also relevant to classification are the abbreviations s (smoke) and d (droplets).
Pfleiderer's range of fire rated boards are classified A2, B and C depending on the material and product configuration. Please refer to the fire protection brochure linked below for further details.