Commercial Roofing in Oklahoma City, OK

Oklahoma City's commercial sector includes a diverse range of building types — from retail strip centers to office parks, industrial facilities, churches, and multi-family housing. Commercial roofing systems differ fundamentally from residential: most commercial roofs are flat or low-slope, using membranes, built-up systems, or modified bitumen rather than shingles.

Reliant Roofing OKC provides commercial roofing services for property owners, property managers, and business owners throughout the OKC metro. We specialize in TPO single-ply membrane systems, EPDM rubber roofing, flat roof repair, and roofing retrofitting — bringing the same attention to detail and documentation rigor we apply to residential work.

TPO (Thermoplastic Polyolefin): TPO has become the dominant commercial roofing membrane in Oklahoma due to its combination of UV resistance, energy efficiency (white TPO reflects heat rather than absorbing it), and competitive installed cost. Seams are heat-welded, creating bonds stronger than the membrane itself when properly installed. We install TPO in 45, 60, and 80 mil thicknesses depending on the application.

EPDM (Ethylene Propylene Diene Monomer): EPDM rubber roofing has a 40-year track record in commercial applications and remains an excellent choice for many Oklahoma buildings. It handles thermal movement well — important given Oklahoma's temperature range — and repairs are straightforward. Seam integrity is critical and must be maintained with regular inspection.

Flat Roof Systems: Whether existing built-up roofing (BUR), mod-bit, or membrane systems, we service, repair, and replace all commercial flat roof types. Drainage is a particular focus for Oklahoma commercial properties — inadequate slope or clogged drains lead to ponding water that accelerates deterioration and increases structural load.

Roofing Retrofitting: When a commercial roof is at end of life but a full tear-off is cost-prohibitive, retrofitting an overlay system onto the existing roof can be an economical solution. We evaluate existing conditions carefully — not all roofs are candidates for overlay, and improper overlays create more problems than they solve.

1. 1 Property Assessment: We inspect the existing roof system, perform core cuts to assess insulation condition and moisture levels, and evaluate structural capacity and drainage patterns.
2. 2 System Recommendation: Based on the assessment, we recommend the appropriate system — TPO, EPDM, modified bitumen, or BUR — considering the building's use, budget, energy requirements, and expected ownership timeline.
3. 3 Detailed Proposal: We provide a comprehensive written proposal with material specifications, timeline, warranty terms, and pricing. For insurance-related projects, we provide Xactimate documentation.
4. 4 Permit Coordination: We pull all required commercial building permits. Oklahoma City's commercial permitting requirements are more complex than residential, and we handle the entire process.
5. 5 Installation: Our crews follow manufacturer-specified installation procedures, including proper seam welding temperatures for TPO, correct adhesive application for EPDM, and appropriate flashing at all penetrations and parapet walls.
6. 6 Inspection and Warranty: We coordinate manufacturer inspections when required for extended warranty programs and provide complete warranty documentation to the property owner or manager.