DynaLastic® 180 FR features ceramic-coated roofing granules specifically engineered for optimal embedment in the SBS-blend sheet. The high-quality SBS rubber and asphalt blend lends elasticity and flexibility to the sheet and contains fire-retardant additives. The ceramic coating promotes excellent long-term adhesion. The polyester reinforcement mat offers robust tear strength and puncture resistance, allowing for high wind performance and excellent hail rating.