TPO vs. modified bitumen vs. spray foam
Three proven commercial systems for flat and low-slope roofs. TPO membrane is the most popular for new installs — white, reflective, and easy to maintain. Modified bitumen is the durable choice for high-traffic roofs and older retrofit work. Spray foam is the best option for irregular roof shapes or when you need built-in insulation and a fully seamless surface.
- TPO — bright white, energy-efficient, 20-30 year life
- Modified bitumen — tough, walkable, great for retrofits
- Spray foam — seamless, insulating, fills every gap
- All systems carry manufacturer warranties

