For it
a white, heat-reflecting surface that lowers cooling costs, UV resistance, simple installation and low maintenance. That suits a hot North Carolina summer.
TPO costs $4 to $10 per square foot installed, and most flat roofs land between $7,700 and $14,000. Here is the price by membrane system and thickness, and what else goes into the quote.

| Cost | |
|---|---|
| Installed, per sq ft | $4 to $10 |
| National average | $11,200 |
| Typical range | $7,700 to $14,000 |
| Low and high end | $5,800 to $20,700 |
| Material only, per sq ft | $1.00 to $2.50 |
| Labor, per sq ft | $2.50 to $4.50 |
Source: HomeGuide’s TPO roofing cost guide.
Material-only prices. 45 mil and 60 mil are the most common thicknesses; ballasted is cheapest and fully adhered is the most secure.
| System | 45 mil, per sq ft | 60 to 75 mil, per sq ft |
|---|---|---|
| Ballasted | $1.80 to $2.30 | $2.00 to $2.50 |
| Mechanically fastened | $2.00 to $3.00 | $2.20 to $3.10 |
| Fully adhered | $2.80 to $3.20 | $3.00 to $3.50 |
Source: HomeGuide’s TPO roofing cost guide. Installation not included.
| Item | Typical cost |
|---|---|
| Polyiso insulation | $0.50 to $3.00 per sq ft (1 in $0.50 to $1.50; 3 in $1.30 to $3.00) |
| Old roof removal | $1 to $2 per sq ft |
| Flashing | $50 to $500 |
| Penetrations and curbs (drains, skylights, chimneys) | $200 to $500 |
| TPO flashing repair | $200 to $500 |
Source: HomeGuide’s TPO roofing cost guide. Insulation can cost more than the membrane itself.
a white, heat-reflecting surface that lowers cooling costs, UV resistance, simple installation and low maintenance. That suits a hot North Carolina summer.
HomeGuide notes repairs can be expensive, colors are limited, and quality varies between manufacturers because the material is relatively new. Pick an established brand; HomeGuide names Versico, Carlisle, GAF, Firestone and GenFlex among the most trusted.
Comparing membranes? Read TPO vs EPDM and our best flat roof material guide.
$4 to $10 installed, per HomeGuide, with the membrane alone at $1.00 to $2.50.
10 to 25 years on average, depending on material quality and thickness, per HomeGuide.
Thicker membrane costs a little more, roughly $0.20 to $0.30 per sq ft more on HomeGuide’s figures, and is more durable. On a roof you plan to keep, it is usually worth asking for.
Installed prices overlap: HomeGuide lists EPDM at $3.50 to $10 and TPO at $4 to $10 per sq ft.
TPO handles light foot traffic, per HomeGuide. Walkway pads are worth adding around equipment.
Flat and low-slope roofs we install.
The two common membranes compared.
Every flat roof option compared.
The other common low-slope choice.
We get on the roof, photograph what is actually there, and hand you a written report with a price. No charge, and no obligation to book the work with us. If the roof has years left in it, that is what the report will say.
Whether you need a roof replacement, roof repair, or annual inspection, we’ve got you covered.