Flat roofing covers low-slope assemblies where water leaves by pitch and drain rather than gravity alone, so every layer carries weight. We start with a roof system assessment of the membrane, insulation, and roof deck, then map the drain and scupper locations before anyone orders material.
Membrane choice drives both cost and lifespan. TPO single-ply reflects summer sun, EPDM rubber tolerates rapid freeze-thaw cycles, PVC membrane resists kitchen exhaust and grease, and modified bitumen or a built-up roof suits older Minneapolis buildings. We bond seams with adhesive and run a drip edge along the parapet and rooftop perimeter.
Building code here governs insulation values and drain sizing, and hailstorms in late spring test every lap. A 15-to-30-year manufacturer warranty from Carlisle SynTec, Firestone, GAF EverGuard, or Versico follows a clean installation, and we add a coating wherever ponding water keeps the membrane under constant load.
