In this article 14 sections
- How Much Does It Cost to Replace a Warehouse Roof?
- Cost per Square Foot for Large Roofs (Economies of Scale)
- Best-Value Systems for Warehouses | TPO, Metal Retrofit, Coating
- Phasing a Replacement Without Shutting Down Operations
- Budget Line Items Owners Miss
- Ways to Offset the Cost | Section 179, Insurance, C-PACE
- FAQs | Warehouse Roof Replacement
- How long does it take to reroof a 100,000 sq ft warehouse?
- Can a warehouse roof be replaced while operations continue?
- Is it cheaper to coat a warehouse roof than replace it?
- Does Section 179 apply to warehouse roofs?
- Is a metal roof retrofit cheaper than tear-off on an old warehouse?
- What raises warehouse roof costs the most?
- Schedule a Warehouse Roof Assessment
How Much Does It Cost to Replace a Warehouse Roof?
At this size, small per-square-foot differences become six-figure decisions, and the biggest costs are often operational: downtime, protecting inventory and keeping docks running. This guide covers both, based on how we plan commercial roofing in San Antonio for distribution and industrial buildings.
Cost per Square Foot for Large Roofs (Economies of Scale)
Mobilization, project management and equipment are largely fixed costs, so they shrink per square foot on a big roof. Industry data puts large roofs 15% to 25% below small-roof pricing for the same system.
| Cost line (TPO) | Typical roof | Large roof (after 15–25% scale effect) |
|---|---|---|
| TPO 60-mil system | $5.28 – $8.16 / sq ft | |
| Tear-off and disposal | $1.00 – $3.00 / sq ft | |
| Insulation to code | $1.00 – $3.50 / sq ft | |
| Planning total | $7.28 – $14.66 / sq ft | about $5.50 – $12.50 / sq ft |
San Antonio TPO: Commercial Roof Guide (Mar 2026). Texas adders: Core Commercial Roofing (2026). Scale effect: Terrapin (2026). Large-roof column applies a 25% reduction to the low end and 15% to the high end.
| Roof size | TPO replacement (planning range) | Silicone coating ($1.50 – $4.50) |
|---|---|---|
| 50,000 sq ft | $275,000 – $625,000 | $75,000 – $225,000 |
| 100,000 sq ft | $550,000 – $1,250,000 | $150,000 – $450,000 |
| 200,000 sq ft | $1,100,000 – $2,500,000 | $300,000 – $900,000 |
Illustrative budgets using the ranges above; add a 10–15% contingency for deck and wet insulation found during tear-off.
Run your own square footage through the commercial roof replacement cost calculator for a starting number.
Best-Value Systems for Warehouses | TPO, Metal Retrofit, Coating
| Option | Cost / sq ft | Lifespan | Best when |
|---|---|---|---|
| TPO replacement | about $5.50 – $12.50 at scale | 20 – 30 yrs | Low-slope roof with wet insulation or failing membrane |
| Standing seam metal | $8.64 – $15.35 (San Antonio) | 40 – 70 yrs | Long hold period; sloped or retrofit-ready structure |
| Metal-over-metal retrofit | Priced per project | 40+ yrs | Old metal roof, sound structure, building must stay dry and open |
| Silicone coating restoration | $1.50 – $4.50 (coating); $3 – $9 full restoration | 10 – 20 yrs, recoatable | Dry insulation, sound deck, less than 25% needing repair |
For distribution centers, white TPO is the most common choice for low-slope roofs: it’s cost-effective at scale and reflective in summer heat. See warehouse & distribution center roofing, TPO roofing in San Antonio and commercial metal roofing in San Antonio.
Phasing a Replacement Without Shutting Down Operations
A large roof is replaced in sections, so the building never stands open to weather. A typical phased project looks like this:
- Survey and plan. Map wet areas, rooftop units, skylights and drains; split the roof into phases that match your operations.
- Schedule around the floor. Start over storage or low-activity zones; keep dock areas and sensitive equipment for planned windows.
- Tear off only what can be closed the same day. Each section is made watertight before the crew leaves.
- Protect inventory below. Cover racks under active work areas and keep staff clear of the work zone.
- Coordinate rooftop units. HVAC disconnects and resets are scheduled with your facilities team.
- Inspect and close out each phase before moving to the next.
Ask for a phase plan in writing with the bid. It is often worth more than a small price difference.
Budget Line Items Owners Miss
- Deck replacement where the steel deck has rusted, typically $1.50 to $3.00 per sq ft, only known after tear-off
- Skylight replacement or curbing: many older warehouses have dozens
- Rooftop equipment disconnect, raise and reset for new insulation height
- Edge metal, gutters and downspouts that must be replaced with the roof
- Tapered insulation to fix ponding on large flat areas
- Crane and staging for material loading
- Contingency of 10% to 15% above the base bid
Ways to Offset the Cost | Section 179, Insurance, C-PACE
| Option | How it helps | What to check |
|---|---|---|
| Section 179 | A full roof replacement on a nonresidential building can be expensed in the year it’s placed in service | 2026 cap about $2.56 million, phase-out starting near $4.09 million, and limited to business income. Ask your CPA. |
| Insurance claim | Covers storm-damaged portions if hail or wind caused the damage | Inspect promptly after storms; see storm and hail damage roof repair |
| C-PACE financing | Long-term financing for qualifying energy improvements, repaid through a property assessment | Program availability and eligibility in your county |
| Utility incentives | Cool roof incentives for commercial customers | CPS Energy program terms before work starts |
FAQs | Warehouse Roof Replacement
How long does it take to reroof a 100,000 sq ft warehouse?
Typically several weeks of on-site work, depending on weather, tear-off layers, deck repairs and how the phases fit your operations. Permitting and material lead times come before that.
Can a warehouse roof be replaced while operations continue?
Yes. Large roofs are replaced in phases, with each section closed watertight at the end of the day. Work above sensitive areas is scheduled around your operations and inventory is protected below.
Is it cheaper to coat a warehouse roof than replace it?
Much cheaper if the roof qualifies: about $1.50 to $4.50 per sq ft for silicone versus roughly $5.50 to $12.50 for a TPO replacement at scale. The roof needs dry insulation and a sound deck, which a moisture survey confirms.
Does Section 179 apply to warehouse roofs?
A full roof replacement on a nonresidential building such as a warehouse can qualify. The deduction is limited to your business income and has annual caps, so your CPA should confirm it for your situation.
Is a metal roof retrofit cheaper than tear-off on an old warehouse?
Often, because it avoids tear-off, keeps the building dry and in use, and adds insulation in the same step. The structure must be checked for the added weight, which is typically about 1.7 to 2.5 lb per sq ft.
What raises warehouse roof costs the most?
Wet insulation and rusted deck found during tear-off, many skylights or rooftop units, and code-required insulation upgrades. A moisture survey before bidding removes much of the uncertainty.
Schedule a Warehouse Roof Assessment
We’ll survey the whole roof, map wet areas, and price replacement, retrofit and restoration side by side, with a phase plan built around your operations.
- Free roof assessment for warehouses and industrial buildings across San Antonio and the I-35 corridor, including warehouse roofing in Schertz, Live Oak and Converse
- Moisture survey to separate what must be replaced from what can be saved
- Written phase plan to keep your docks running
Book your free roof inspection in San Antonio or see commercial roof replacement in San Antonio and our work on manufacturing roofing.
Start the conversation
Questions get answered by the roofers who wrote the article, not a chatbot.