DynaGlas® 30 FR is a fire-resistant modified bitumen sheet incorporating the features of a fiber glass mat with a blend of SBS rubber, high quality asphalt and fire-retardant additives. The covering layer of ceramic-coated roofing granules, black or white, provides durability along with superior resistance to damage from weather and foot traffic. White granules also provide heat reflectance. The inorganic fiber glass reinforcement provides tensile strength, stability and toughness to the product and resists moisture absorption. These properties also afford the product better natural resistance to the other factors which affect roof performance.