August 14, 2026 – PRESSADVANTAGE –

Commercial building owners weighing a flat roof replacement now have a climate-specific resource to guide the decision. Big Easy Roofing, a residential and commercial roofing contractor headquartered in New Orleans, has published a detailed comparison of TPO and EPDM single-ply membrane systems written specifically for southeastern Louisiana building conditions rather than national averages.

The publication, titled “Should Your New Orleans Commercial Building Get a TPO or EPDM Roof?”, examines how the two most common flat roof membranes perform under the combination of year-round ultraviolet exposure, sustained humidity, and wind-driven rain that defines the Gulf Coast climate. The analysis covers buildings throughout the metro area, including Metairie, Kenner, Gretna, Harahan, Slidell, and Mandeville, where commercial property managers face replacement decisions that affect monthly operating costs for decades.

According to the comparison, EPDM, or ethylene propylene diene terpolymer, carries a lower upfront cost at 3.50 to 7 dollars per square foot installed, while TPO, or thermoplastic polyolefin, runs 4 to 8 dollars per square foot. The publication finds that the gap narrows quickly in local conditions because TPO’s white reflective surface reduces cooling costs by 20 to 30 percent compared with EPDM’s standard black surface. On a 10,000-square-foot building running commercial air conditioning through a Louisiana summer, the analysis estimates annual energy savings of 1,500 to 3,000 dollars, allowing the cooling savings to offset the higher installation cost within two to four years.

The resource identifies seam construction as the most consequential technical difference for the region. TPO seams are heat-welded into a continuous sheet that does not degrade over time, while EPDM seams rely on adhesive bonding that softens in summer heat, stiffens during winter cool snaps, and gradually works loose under constant expansion and contraction. The publication reports that seam failure is the most common EPDM warranty claim in Gulf Coast installations and that wind-driven rain during tropical weather exploits weakened adhesive bonds aggressively.

“National comparison articles treat these two membranes as interchangeable, and in a moderate climate they nearly are,” said a spokesperson for Big Easy Roofing. “In this market, the heat, the humidity, and the storm exposure change the math. We published this analysis so building owners can see exactly how each system behaves here before they commit to a 15-to-20-year decision.”

The comparison also addresses longevity and maintenance. EPDM roofs in moderate climates have lasted 30 to 40 years, but the publication finds the realistic local service life shortens to 15 to 25 years due to ultraviolet bombardment, biological growth, and adhesive degradation, while TPO typically delivers 15 to 20 years in Gulf Coast installations with seams that hold up better over that period. The analysis notes that EPDM remains the appropriate choice in specific scenarios, including unconditioned warehouses where reflectivity savings do not apply, projects with strict upfront budget limits, roofs with heavy maintenance foot traffic, and partial replacements that must match an existing EPDM membrane.

Big Easy Roofing installs both membrane systems on commercial properties across the metro area and provides commercial roof replacement, repairs, inspections, ventilation, leak detection, re-roofing, and coating services. The company, which also offers a 24-Hour Roof Replacement Guarantee on qualifying projects, states that its recommendations are based on the building’s use, conditioning, and ownership timeline rather than product margins. The complete comparison, including guidance on recover installations over existing membranes and energy incentive eligibility, is available on the company’s website.

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For more information about Big Easy Roofing, contact the company here:

Big Easy Roofing
Jose Yoder
(504) 800-8196
info@bigeasyroofing.com
517 Soraparu St 103 E,
New Orleans, LA 70130

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