Polymer modified bitumen roofing is applied through a process that involves blending traditional bitumen with polymers, enhancing its elasticity, durability, and resistance to temperature fluctuations. The modified bitumen is typically heated to a specific temperature to ensure optimal flow and adhesion. It can be applied using various methods, including torching, hot mopping, or self-adhesive systems. This ensures a strong bond to the substrate, providing a waterproof and long-lasting roofing solution.