Building owners ask me this question more than almost any other: how much does a commercial roof actually cost? There isn’t a single number, because material, roof size, tear-off condition, and local code all move the price. Here’s the short answer, then the full breakdown.
On average, a flat commercial roof runs $4 to $13 per square foot, while a steep-slope commercial roof runs $5 to $25 per square foot. Out here in West Texas, wind and hail exposure push some of those numbers higher than a national average would suggest, which is why the code section below matters as much as the material section.
1. Types of Commercial Roofing Materials and Their Costs
The material you choose drives most of the total cost. Here’s what each option runs and where it fits.
Single-Ply Membranes (TPO, EPDM, and PVC)
These are the most common systems on flat and low-slope commercial roofs, and for good reason: they install fast and hold up well in Texas heat.
- TPO (Thermoplastic Polyolefin): $5 to $10 per square foot. Reflective and energy-efficient, but it needs skilled, properly heat-welded seams or it fails early. Read our full TPO roofing guide for a deeper look at how it performs under West Texas UV and wind loads.
- EPDM (rubber roofing): $4 to $12 per square foot. Durable and cost-effective, though dark EPDM absorbs heat and can shrink over time.
- PVC: $6 to $13 per square foot. Strong chemical resistance and a long lifespan, with a higher upfront cost.
Built-Up Roofing (BUR)
BUR runs $5 to $9 per square foot. It’s a multi-layered system with excellent waterproofing, but it’s heavier and takes longer to install than single-ply membranes.
Modified Bitumen
Modified bitumen runs $4 to $8 per square foot. It flexes well across temperature swings, which matters when a roof sees a 100-degree summer day and a hard freeze in the same winter.
Metal Roofing
Metal runs $10 to $25 per square foot. It’s durable and low-maintenance, but it’s also the material most exposed to the steel and aluminum tariff increases discussed below, and hail impact is a real consideration on this side of the state.
Green Roofs and Cool Roof Coatings
Green roofs run $15 to $30 per square foot. They improve insulation and extend roof life, but they need regular upkeep and aren’t the right fit for every building.
2. How Many Layers Does the Roof Have?
The number of existing layers on your roof changes the labor and disposal cost more than most owners expect.
- Single-layer removal: typically $1 to $3 per square foot.
- Multiple-layer removal: each additional layer adds $2 to $5 per square foot in labor and disposal.
- Roof overlay: if local code allows it, installing a new membrane over the existing roof saves on tear-off cost upfront, but it can shorten the lifespan of the new system and complicate future repairs. We break down when an overlay makes sense versus when it doesn’t in our re-roofing vs. full replacement guide.
- Full tear-off and replacement: usually required when the existing roof has structural damage or has failed in multiple spots.
3. Local Building Codes and West Texas Wind Requirements
Building code is where a lot of national roofing cost guides fall short, because code requirements vary sharply by region. Lubbock and the surrounding South Plains sit on flat, treeless High Plains terrain with almost nothing to slow the wind before it hits a roof. The City of Lubbock Building Safety Division requires a design wind speed of 105 to 120 mph under ASCE 7-22, with most sites falling into Exposure Category C, the open-terrain classification that produces some of the highest wind pressures inland in the country. That requirement affects fastening patterns, membrane attachment, and in some cases the material itself, and it’s a real line item, not a formality.
Beyond wind, a few other code factors move the price:
- Energy efficiency standards: many jurisdictions require reflective materials like TPO or white PVC to meet cool roof requirements.
- Fire resistance ratings: some locations require Class A fire-rated roofing, which narrows material options.
- Hail exposure: West Texas sees regular hail events, which is why impact-rated materials are worth the upfront cost on many of the buildings we work on.
Always confirm current local code before budgeting. If you’re not sure where your building stands, a comprehensive roof report will tell you exactly what condition your roof is in and what code requirements apply before you commit to a number.
4. Labor Costs, Material Tariffs, and Project Complexity
Labor typically runs $2 to $7 per square foot, depending on roof access, slope, and time of year. Steep-slope roofs cost more because of the added safety equipment and slower installation pace, and roofs that need cranes or lifts for access add to that number fast.
Material cost has also moved in 2026. Under an April 2026 presidential proclamation on Section 232 tariffs, steel and aluminum articles are now subject to a 50 percent tariff on their full customs value, which has pushed up pricing on metal roofing panels, edge metal, and flashing. If metal roofing is on your shortlist, get a current quote rather than relying on a price you saw last year. It’s moved.
5. Additional Cost Factors
Insulation
- Rigid foam insulation: $1.50 to $4 per square foot
- Spray foam insulation: $3 to $6 per square foot
- Polyisocyanurate (ISO) insulation: $2.50 to $6 per square foot
Warranties and Maintenance
A manufacturer’s warranty is usually included, but premium warranty upgrades can add $0.50 to $2 per square foot. If you’re buying or selling a building, it’s worth knowing that not every roof warranty transfers automatically. We cover what does and doesn’t carry over in our roofing warranty transfer guide.
Permitting and Inspection
Permit and inspection fees usually run $500 to $5,000, depending on project size and jurisdiction.
Final Thoughts: How to Budget for a Commercial Roof
Because so many factors move the price, get multiple estimates and work with a contractor who knows your local code, not just national averages. As a quick reference:
| Roof Type | Cost Per Square Foot |
|---|---|
| Flat Roofs | $4 to $13 |
| Steep-Slope Roofs | $5 to $25 |
| Metal Roofing | $10 to $25 |
| Green Roofs | $15 to $30 |
Before you get a quote, have these ready: your building’s specific needs, local code and wind exposure, the existing roof’s condition and layer count, and your long-term energy and maintenance goals. If your roof is already showing wear, don’t wait on a full failure. A targeted commercial roof repair now is almost always cheaper than an emergency replacement later, and if you’re ready to move forward on a full system, our commercial re-roofing team serves the entire West Texas region. Contact us to get a real number for your building, not a national average.
Frequently Asked Questions
How much is a commercial roof per square foot?
A commercial roof typically costs $4 to $13 per square foot for flat roofs and $5 to $25 per square foot for steep-slope roofs. Material type, tear-off layers, local wind code, and labor all move the final number.
What does TPO roofing cost?
TPO runs $5 to $10 per square foot installed. It’s reflective and energy-efficient, but it needs properly heat-welded seams to hold up long term.
How much does an EPDM rubber roof cost?
EPDM runs $4 to $12 per square foot. It’s durable and weather-resistant, though dark EPDM absorbs more heat and can shrink over time.
What does it cost to remove an old commercial roof?
Removing a single layer typically costs $1 to $3 per square foot. Each additional layer adds another $2 to $5 per square foot.
Can you install a new roof over an old one?
Yes, if local code allows it. An overlay saves on tear-off cost, but it can shorten the lifespan of the new roof and isn’t the right call on every building.
How much does a metal commercial roof cost?
Metal roofing runs $10 to $25 per square foot. It’s durable and low-maintenance, but 2026 steel and aluminum tariffs have pushed pricing up, so get a current quote.
Why does roof slope affect cost?
Steep roofs need more safety equipment and take longer to install than flat roofs, which raises the labor cost per square foot.
Do local codes raise commercial roofing cost?
Yes. In Lubbock and the South Plains, wind uplift requirements of 105 to 120 mph under ASCE 7-22 affect fastening and material choice, which can raise the price over a national average.
What extra costs come with a commercial roof project?
Insulation ($1.50 to $6 per square foot), permits ($500 to $5,000), warranty upgrades ($0.50 to $2 per square foot), and access equipment like cranes or lifts.
How should I budget for a commercial roof?
Get multiple estimates, confirm your local wind and code requirements, know your existing roof’s layer count and condition, and factor in long-term energy and maintenance costs, not just the install price.
Zac Ammons is the owner and CEO of Core Commercial Roofing & Coatings, serving Lubbock and the West Texas region.
