For most Mississippi commercial properties, TPO is the stronger choice due to its superior UV reflectivity, heat-welded seams, and Energy Star rating. Mississippi’s intense summer sun and high cooling demand make TPO’s reflective white surface a significant energy advantage. However, EPDM remains an excellent option for properties where initial cost is a primary concern, puncture resistance is important, or where the building owner prefers the proven 50-year track record EPDM offers. Properties with extensive rooftop equipment or heavy foot traffic may benefit from EPDM’s superior impact resistance. Tekton Exteriors evaluates your specific building, budget, and priorities before recommending either system.

Properly installed and maintained TPO systems last 20 to 30 years in Mississippi. EPDM systems typically perform 20 to 25 years, with some installations exceeding 30 years in favorable conditions. Lifespan depends heavily on membrane thickness (we recommend 60-mil minimum for Mississippi’s UV exposure), installation quality, drainage performance, and maintenance consistency. Heat-welded TPO seams maintain integrity longer than EPDM adhesive seams in Mississippi’s thermal cycling environment. Tekton Exteriors maximizes membrane lifespan by specifying appropriate thickness, ensuring proper attachment, and offering maintenance programs that catch issues early.

TPO roofing typically costs more than EPDM for materials, but the energy savings from its reflective surface often offset the difference over the roof’s lifespan. Costs for both systems depend on membrane thickness, insulation requirements, roof size, accessibility, and the complexity of flashing and penetration details. Tekton Exteriors provides itemized estimates that clearly compare TPO and EPDM options for your specific project, including projected energy savings calculations when relevant. We also assist with insurance documentation for storm damage claims and can identify potential energy efficiency incentives available to Mississippi commercial property owners.

Yes. Both TPO and EPDM systems can be installed over existing flat roofing in many situations, eliminating tear-off costs and reducing installation time. The existing roof must meet structural requirements — the deck must be sound, existing insulation must be dry, and total weight must remain within the building’s load capacity. A recover board is typically installed over the existing membrane to create a smooth substrate for the new system. Tekton Exteriors performs core cuts and moisture testing to verify the existing roof’s condition before recommending a recover installation. When conditions are favorable, recovering saves Mississippi property owners 25-40% compared to full tear-off and replacement.

We recommend semi-annual inspections (spring and fall) plus an inspection after any significant storm. These inspections check membrane condition, seam integrity, flashing details, drainage performance, and the condition of rooftop equipment curbs. Prompt repair of any issues found during inspections prevents small problems from becoming major failures. Tekton Exteriors offers maintenance agreements for Mississippi commercial property owners that include scheduled inspections, priority repair service, and detailed condition reports. Regular maintenance documentation also supports warranty claims and demonstrates responsible property management for insurance and lending purposes.