TPO Roof Overlay Systems in South Florida — Energy-Efficient, Cost-Effective, Fast Install
A TPO overlay can extend your commercial roof's life by 15–25 years without the cost and disruption of full tear-off. Roofing Network installs TPO overlay systems across South Florida — same energy performance as a new roof at significantly lower cost. Free commercial estimate.
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Install Time
2–4 Days
Warranty
NDL Available
Includes
Overlay Roofing Systems
Get a New Roof Performance Without the Full Tear-Off Cost
TPO roof overlay systems allow commercial property owners in South Florida to achieve new-roof energy performance and waterproofing at 30–40% lower cost than full tear-off — by installing a new TPO membrane directly over the existing sound substrate, eliminating tear-off labor, landfill disposal costs, and the significant business disruption that demolition creates. Roofing Network assesses every existing roof for overlay eligibility before recommending this approach — it's only viable when the existing substrate is structurally sound, dry, and properly sloped.
TPO (Thermoplastic Polyolefin) is the most widely specified commercial membrane in South Florida today — valued for its heat-welded seams (the strongest joint available in single-ply membranes), its white reflective surface that meets ENERGY STAR and Title 24 cool roof requirements, and its resistance to the UV and heat cycling that degrades modified bitumen systems over time. A properly installed TPO overlay delivers the same performance as a new TPO installation at a fraction of the total project cost.
Key Benefits
• 30–40% Cost Savings vs. Full Tear-Off: By eliminating tear-off labor and disposal costs, a TPO overlay delivers new-roof waterproofing and energy performance at significantly lower total investment.
• ENERGY STAR Qualified: White TPO membranes reflect 70–80% of solar energy — qualifying for ENERGY STAR and potentially reducing building cooling loads by 10–20%, lowering utility costs year over year.
• Core-Sample Eligibility Check: We core sample your existing roof before recommending overlay — confirming the substrate is dry, sound, and structurally eligible. Overlaying wet or structurally compromised insulation is one of the most common commercial roofing mistakes in South Florida.
Configuration | Membrane | Fastening | Best For | Warranty Option
Standard Commercial Overlay | 60mil TPO | Mechanically attached | Standard commercial, most building types | NDL 10–15yr
Heavy-Duty Overlay | 80mil TPO | Mechanically attached | High-traffic, equipment-dense, extended warranty | NDL 20yr
Fully Adhered Overlay | 60mil or 80mil TPO | Full adhesive | Buildings where penetrations prohibit mechanical attachment | NDL 10–20yr
Cover Board + Overlay | 1/2" cover board + 60mil TPO | Mechanically fastened through board | Existing surface too irregular for direct overlay | NDL 10–15yr
Why Choose Us
4 Reasons Roofing Network is South Florida's Top Choice
Eligibility Assessment First
01
Not every existing roof qualifies for overlay. We core sample the existing system to confirm: (1) substrate is dry — no trapped moisture that would accelerate insulation degradation under the new membrane; (2) existing surface is flat and properly sloped — standing water under a new membrane creates blister and seam stress; (3) deck is structurally sound. If your roof doesn't qualify, we tell you — and present full replacement as the appropriate option.
Heat-Welded Seams — No Adhesive Failure
02
TPO seams are hot-air welded — creating a molecular bond between the panels that's actually stronger than the membrane itself. This eliminates the adhesive-based seam failures common in cold-applied and tape-bonded single-ply systems. In South Florida's thermal cycling environment, heat-welded seams are the only seam method we specify on commercial TPO work.
Cool Roof Credits & Energy Savings
03
White TPO's 0.70+ solar reflectance meets ENERGY STAR's commercial cool roof criteria. For South Florida commercial buildings, this translates to measurable cooling load reduction — typically 15–25 cents per square foot annually in energy savings. Some utility providers offer rebates for qualifying cool roof installations. We document all qualifying specifications for any rebate application you choose to pursue.
NDL Warranty Available
01
TPO overlay systems from Roofing Network qualify for manufacturer NDL (No-Dollar-Limit) warranty options covering both materials and installation labor — for 10, 15, or 20-year terms from qualifying manufacturers. NDL warranties require manufacturer-approved installation, a pre-installation moisture survey, and a manufacturer inspection at completion. We manage the full NDL qualification process.
TPO Overlay System Options
TPO overlays are available in several configurations depending on substrate condition, traffic exposure, and warranty requirements. Below is a comparison of the primary options we specify for South Florida commercial buildings.
Configuration | Membrane | Fastening | Best For | Warranty Option
Standard Commercial Overlay | 60mil TPO | Mechanically attached | Standard commercial, most building types | NDL 10–15yr
Heavy-Duty Overlay | 80mil TPO | Mechanically attached | High-traffic, equipment-dense, extended warranty | NDL 20yr
Fully Adhered Overlay | 60mil or 80mil TPO | Full adhesive | Buildings where penetrations prohibit mechanical attachment | NDL 10–20yr
Cover Board + Overlay | 1/2" cover board + 60mil TPO | Mechanically fastened through board | Existing surface too irregular for direct overlay | NDL 10–15yr
$5–$9/sq ft installed — approx. $50,000–$90,000 for 10,000 sq ft
TPO overlay pricing is confirmed after core sampling — substrate condition determines whether overlay or replacement is the appropriate recommendation. Free aerial measurement and on-site assessment. Call 954-588-8734 or submit our commercial quote form. Weekend assessments available for occupied facilities.
License Number
CCC1329271 / CGC1517295
30+ Years in Business
South Florida Experts
Our Process
How Your TPO Roof Overlay Systems Works
No surprises. No handoffs to a subcontractor. The same team from quote to completion.
01
Core Sampling & Eligibility Assessment
We core sample the existing roof at multiple locations to confirm substrate dryness and structural soundness. Infrared moisture survey available for large facilities. If the roof qualifies for overlay, we proceed to specification. If it doesn't, we provide an honest full-replacement recommendation.
TPO System Specification
Written specification covering: TPO membrane thickness (60mil or 80mil), cover board if required, fastening method (mechanically attached vs. fully adhered), drain retrofit if needed, and NDL warranty option. Energy code compliance confirmed.
02
03
Permit & Material Procurement
Commercial overlay permits submitted with NOA documentation and energy compliance forms. TPO material ordered — lead time typically 5–7 business days. Pre-installation moisture survey conducted if NDL warranty is being pursued.
Surface Preparation & TPO Installation
County inspection scheduled and passed. Manufacturer NDL inspection completed if applicable. All seams probe-tested for continuity. Certificate of Completion and full warranty documentation delivered.
04
05
County inspection scheduled and passed. Manufacturer NDL inspection completed if applicable. All seams probe-tested for continuity. Certificate of Completion and full warranty documentation delivered.
FAQ
TPO Roof Overlay Systems— Common Questions
Everything you need to know about roofing in South Florida. Can't find your answer? Call us directly.
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