What technical requirements define how long does a modified bitumen roof last for asphalt or bitumen modification?

The longevity of a modified bitumen roof is influenced by several technical requirements, including the quality of the bitumen used, the type and percentage of modifiers (such as SBS or APP), the thickness of the membrane, proper installation techniques, and environmental factors like UV exposure and temperature fluctuations. Additionally, regular maintenance and the roof’s drainage system play crucial roles in extending its lifespan, typically ranging from 15 to 30 years.