MEMPHIS · COMMERCIAL FLAT ROOF COST CALCULATOR
Roof Replacement Estimator
What could a new TPO flat roof cost? Build a planning range for a single-layer tear-off and 60-mil TPO roof over R-25 insulation. Adjust the size, roof edges, equipment and building height to match your property.
This is a budget model, not a quote. Manufacturer warranty eligibility, code requirements and final scope must be confirmed through project review, an on-site inspection and a core cut.
Starts with an example: a 12,000-square-foot, one-story warehouse. Replace the inputs with your measurements. All prices are in US dollars.
Included
- Tear-off of one roof layer and its insulation to the deck; load-out and disposal
- Deck inspection before anything new goes down
- R-25 polyiso in two layers, fastened to the deck, joints staggered
- 60-mil white TPO, all seams hot-air welded, cut edges sealed
- New edge metal, wall and curb flashings, pipe boots, drain flashing
- Permit, fall protection, roof left watertight every night
- Allowance for a 20-year manufacturer No Dollar Limit warranty and a 2-year workmanship warranty, subject to eligibility and final written terms
Priced separately when found
| Steel deck replacement, 22-ga B-deck | $22 / SF |
| Deck rust prep and primer | $4 / SF |
| Rotten wood nailer, 2x4 · 2x6 · 2x8 | $6 · $8 · $10 / LF |
| Box gutter replacement, 7 in | $26 / LF |
| Walkway pads | $5 / SF |
| Asbestos survey before demolition | $2,500 |
Not included
- Additional roof layers, gravel or ballast removal, tapered insulation, crickets or new drains
- Disconnecting, lifting or resetting HVAC units and gas, electrical or plumbing lines
- Structural repairs to joists or beams, and engineering
- Asbestos abatement, if a survey finds any
- Interior protection below the work area
Planning a commercial TPO roof replacement in Memphis
Use this tool to compare mechanically attached and fully adhered TPO replacement budgets, including optional vapor barriers. It is designed for owners and managers planning flat or low-slope commercial roof work, including warehouses and multifamily buildings with suitable roof systems.
A smaller project can carry a higher cost per square foot because mobilization and equipment costs are spread over less roof area. The calculator retains the supplied October 20, 2026 pricing assumptions; it does not pull live supplier prices.
Explore commercial roof replacement · Plan a roof inspection
Roof replacement estimate questions
How much does commercial flat roof replacement cost in Memphis?
The range depends on roof area, building height, edge details, rooftop equipment and attachment choices. Enter your measurements for a range using TSG’s cost model; this is not a quote or a measured Memphis market average.
Can I use this estimator for a shingle roof replacement?
No. This tool models a single-layer tear-off and a new commercial 60-mil TPO roof over R-25 insulation. Residential shingle roofs need a different assessment.
What is the replacement cost per roofing square?
One roofing square is 100 square feet. The calculator displays the modeled central cost per square foot, per roofing square and the total budget range.
What can change the firm replacement price?
Existing layers, gravel, wet insulation, concealed deck damage, drainage, access, code requirements and warranty eligibility can change the scope. A firm price requires an on-site inspection and a core cut.
How do I send my estimate to TSG?
Select Request a firm price to add the calculator’s summary to the service-request message below. Review it, add your property details and submit the same service form used elsewhere on this site.