Flat Roofing

Low-slope and flat roofing is a different discipline than steep-slope shingle work. The membrane, the drainage, and the seam details all matter more when water has nowhere to run quickly. Getting them wrong means callbacks and interior damage. Getting them right means 20-plus years of reliable performance.

Aero Precision installs and repairs flat roofing systems on commercial buildings, multi-family properties, and residential additions across the Tulsa metro, Cleveland, Stillwater, Bartlesville, and Ponca City.

Drainage Comes First

Before we recommend any membrane system, we evaluate how water moves — or doesn’t — across the roof. Oklahoma gets heavy downpours that can overwhelm undersized drains in minutes. We check that existing drains are adequately sized, that interior scuppers aren’t blocked, and that even a shallow slope directs water toward exit points. A great membrane installed over a bad drainage layout will fail early.

For new construction or full replacements, we can add insulation board beneath the membrane to bring the roof up to current energy-code R-values. This is also the opportunity to correct slope problems by tapering the insulation — adding 1/4 inch per foot toward drains without raising the overall roof height. For buildings where thermal performance is the primary goal, spray foam insulation applied to the roof deck is a seamless alternative that adds R-value and eliminates penetration points simultaneously.

Matching the Membrane to the Building

The right system depends on the building, not just the budget:

• TPO (Thermoplastic Polyolefin) — heat-welded seams, white reflective surface, strong UV resistance; our most commonly specified system for commercial flat work
• EPDM — proven synthetic rubber membrane, cost-effective for low-traffic applications, reliable in extreme temperature swings
• Modified bitumen — two-layer asphalt system for roofs that see regular foot traffic or maintenance access
• Spray polyurethane foam — seamless coverage, fills every penetration, adds R-value simultaneously

TPO’s white surface reduces summer heat gain, which matters across our June-through-September stretch. EPDM is the right call when budget is tighter and foot traffic is minimal. Modified bitumen is our choice when the roof sees regular maintenance access or rooftop equipment work.

Flat roofing work often intersects with broader construction projects — additions, commercial enclosures, and multi-family renovations where a new low-slope section is part of a larger scope. For steep-slope sections of the same building, our metal roofing crews handle the transition seamlessly.

If you have a commercial property in Bartlesville, a flat section over a Stillwater retail space, or a residential low-slope area that’s been leaking, schedule an inspection. We’ll inspect the current system, map the drainage, and give you a clear recommendation.