Flame Spread Rating is a measure of the relative flame spread and smoke development from a material that describes the surface burning characteristics of building materials (a single number comparing the flame spread of a material with red oak = 100, and asbestos cement board = 0). The Flame Spread Rating is one of the most tested fire performance properties of a material and there are several methods of evaluating surface burning characteristics of building materials to judge their suitability within an occupancy. (e.g., NFPA Standard No. 255 – Method of Test of Surface Burning Characteristics of Building Materials)
Related Definitions in the Project: The HSE Management
