Several factors influence fires in modified bitumen roofing systems. Key factors include the type of bitumen used, the presence of additives, and the installation method. The roofing material’s temperature, exposure to direct flames or heat sources, and surrounding environmental conditions also play significant roles. Additionally, the quality of the installation, including proper sealing and adherence, can impact fire resistance. Regular maintenance and inspections are crucial to mitigate fire risks in these roofing systems.