Both systems work on commercial roofs: pick single-ply (TPO/PVC) for a factory-made sheet with welded seams, or spray polyurethane foam (SPF) for a seamless layer that adapts to irregular surfaces. The biggest driver is your current roof’s condition and how the building is used day to day. A pro will check deck type, trapped moisture, drainage, and service traffic before advising repair or full replacement. On older roofs packed with equipment, I watch how water sits at curbs before I recommend a path. Our commercial team regularly handles flat roofs and TPO projects across the Ray area. For commercial complete replacements, we also offer: “FREE 2 Years of the Kanga Kare Club Maintenance Program with Every Complete Roof Replacement!”
Use these quick signals to steer the choice:
- Single-ply: clean layout with clear tie-ins at edges and walls.
- SPF: irregular surfaces or many penetrations where a monolithic layer simplifies detailing.
- Either: when budget, warranty, and code align after a core cut and moisture scan.
Schedule an on-roof inspection and test cuts to confirm substrate and moisture before selecting the system. You can check out pricing for these systems by using our exclusive free commercial roofing estimator https://kanga-roof.com/instant-quote-commercial/.
Updated: 2026-05-07
Need help in Ray, MI? Call (586) 300-4163 or book online at https://kanga-roof.com/schedule-inspection-now/. "Great service, speedy, and high quality roof replacement on our 8,700 sqft building." — Michael L.