Which factors affect modified bitumen roof system in asphalt or bitumen modification systems?

Several factors influence modified bitumen roof systems, including the type of polymer used for modification (such as APP or SBS), the quality of the base asphalt, and the application method (torch-applied, self-adhered, or cold adhesive). Environmental conditions, such as temperature fluctuations and UV exposure, also play a critical role in performance. Additionally, proper installation techniques and maintenance practices are essential for ensuring the longevity and effectiveness of the roofing system.