How is epdm vs modified bitumen roofing applied in asphalt or bitumen modification processes?

EPDM (ethylene propylene diene monomer) roofing is typically applied as a single-ply membrane, using adhesives or mechanical fasteners, and requires minimal modification. In contrast, modified bitumen roofing involves blending traditional asphalt with modifiers like SBS or APP to enhance flexibility and durability. This roofing is applied in layers, often using heat or cold adhesive methods. Both systems offer distinct advantages, with EPDM being more lightweight and energy-efficient, while modified bitumen provides robust waterproofing and ease of installation.