A planning range for a commercial roof in Dallas–Fort Worth. Enter the roof area, the system you are considering, whether the existing roof is torn off or recovered, and the insulation approach. The estimator applies 2026 DFW per-square-foot ranges and shows how the cost splits.
Service life and installed cost per square foot for the systems in the estimator.
What moves a commercial roof price
Tear-off vs recover
Code allows one existing roof to be recovered if it is dry and sound. A moisture scan decides; wet insulation must come out.
Insulation and energy code
The 2018 IECC requires roughly R-25 to R-30 above deck on a replacement. Tapered insulation adds cost but solves ponding.
Details and equipment
Parapets, curbs, drains, HVAC units and penetrations are where labor goes; two buildings with the same area can differ by half.
Warranty level
A 20-year no-dollar-limit manufacturer warranty requires thicker membrane and inspected installation; it is worth it on a building you plan to keep.
Restoration instead
A silicone or acrylic coating over a sound roof costs $2 to $4 per square foot and adds 10 to 20 years.
Access and schedule
Occupied buildings, night work and crane lifts add cost; a clear staging area saves it.
