Commercial TPO Roofing in Texas: GAF EverGuard, Installed to Spec

TPO is the most-installed commercial single-ply in Texas because it does three things at once: it reflects heat, it heat-welds into a monolithic surface with no adhesive seams to fail, and it comes in at the low end of the single-ply price band. For a warehouse, retail box, or office roof, that combination is hard to beat, which is why TPO is the default single-ply ARP specs as a commercial roofing contractor in Texas.

Here's the thing about a flat roof in Texas: your enemy isn't just water, it's heat. A dark, heat-absorbing membrane bakes all summer and drives your rooftop unit loads up. TPO (thermoplastic polyolefin, a single-layer plastic membrane) ships in a reflective white sheet that bounces solar load instead of soaking it up. On a big-box footprint, that reflectivity shows up on your cooling bill and it slows the heat-aging that ends a roof early.

TPO is one of three membranes in ARP's commercial single-ply roofing lineup, and it's the one we recommend first when budget and energy performance both matter. We install it as GAF EverGuard, which matters for a reason that has nothing to do with the sheet itself: it's what lets us register a manufacturer warranty in your name. More on that below.

• Reflective. White membrane, high solar reflectance, for lower rooftop-unit load through a Texas summer.
• Heat-welded, not glued. Your seams fuse into the membrane, so the weakest point on most flat roofs becomes the strongest.
• Light and fast. One engineered layer instead of a built-up roof stacked four to six plies deep, so there is less load on your deck and less time your building is exposed.
• Value-priced. The low end of the single-ply band, which is why it's the volume pick across Texas.

Commercial TPO roofing in Texas runs $8.00 to $12.00 per square foot installed. A 10,000-square-foot building typically lands around $105,000 to $157,500, with final price set by your deck condition, drainage, and rooftop access.

Commercial TPO roofing in Texas runs $8.00 to $12.00 per square foot installed. That range covers the membrane, insulation, fastening or adhesion, flashings, and heat-welded seams, a complete GAF EverGuard system, not just the sheet. Where you land inside it depends on your building.

Updated July 2026, Texas market pricing. Every commercial estimate we write includes a full roof assessment with photos, a written scope before you sign, manufacturer-specified installation, and a final walkthrough. Because final price depends on existing roof condition, deck substrate, drainage, and access, every figure here is a range, not a quote. For sample totals by building size, see the single-ply roofing cost guide →.

Your building tells you which membrane, more than your budget does. TPO is the default for warehouses, retail, and offices where value and reflectivity both count. PVC earns its premium where grease or chemical exhaust would eat a lesser membrane. EPDM is the proven rubber option where a reflective white surface isn't a requirement.

Short version: if there's no grease-laden exhaust on your roof and you want a reflective surface, TPO is almost always the honest recommendation. If you run a kitchen or food-processing exhaust, PVC → is engineered to survive what would degrade TPO over time. If a white membrane isn't a priority and you want a decades-proven rubber sheet, look at EPDM →. For the full head-to-head on cost, lifespan, and best-fit building, read TPO vs PVC vs EPDM →.

Because we install and are certified across TPO, PVC, and EPDM, the recommendation you get is driven by your building (your deck, your drainage, your rooftop equipment, and how long you plan to hold the asset), not by the one system a crew happens to sell.

TPO doesn't fail in the field, it fails at the details. A properly manufactured membrane rarely gives out across the open roof plane. What leaks is the seam that wasn't welded hot enough, the flashing at an HVAC curb that got rushed, or the drain that was never re-set. Those are install-discipline problems, not material problems.

Honestly? The single biggest variable on a TPO roof isn't the brand of membrane, it's the welder running the hot-air gun and the project manager checking the seam probe behind them. We've walked buildings where a five-year-old TPO roof was already leaking at every curb because the original crew treated the flashings as an afterthought. The field membrane was fine. The details had quit.

Here's the part most TPO bids don't tell you up front, and it's where a cheap bid gets cheap:

• Cold or inconsistent seam welds. A weld that looks fine but wasn't hot enough peels later. We probe every seam; a real contractor can show you the record.
• Rushed penetration flashing. HVAC curbs, pipe boots, and roof drains are where water hunts. Detail work here is slow, and slow is exactly what a lowball bid cuts.
• Puncture from foot traffic. TPO is puncture-aware, so dropped tools and heavy rooftop traffic can breach it. Walk pads at service routes solve most of it.
• Skipped drainage correction. Ponding water that's still sitting 48 hours after dry weather isn't a membrane problem, it's a slope problem the last roofer ignored.

The fix for all four is the same: install discipline and a maintenance schedule, documented. That's why our scope names seam-weld testing, flashing detail, and drainage corrections before you sign, not after the leak.

You get three steps, not a mystery. Here's how a TPO project runs from your first call to your warranty paperwork.

1. Free assessment and written scope. We walk your roof, core-sample where needed, document condition with photos, and hand you a written scope (membrane thickness, insulation, attachment method, flashing detail, and drainage corrections) before you sign anything.
2. Manufacturer-spec installation, supervised. Your membrane goes down to GAF EverGuard specifications by vetted installation partners we deploy and supervise, with an ARP project manager on the job and photo documentation at each stage. Seams are heat-welded and probe-tested.
3. Final walkthrough and warranty registration. We inspect the finished system with you, confirm every seam and penetration, clean the site under our Clean Site Promise™, and register your manufacturer warranty. You end with a documented roof and a paper trail you can hand to ownership.

That written scope names one line some bids quietly skip: new scuppers and drains. A new TPO membrane almost always needs new drainage, because reusing old scuppers and drains under a fresh membrane is technically unsound, and those aged connections are where the first leaks show up. Positive drainage is a warranty condition for many single-ply manufacturers, so we carry scuppers and drains as an itemized line instead of leaving warranty-required drainage off the bid to look cheaper. When you compare TPO quotes, check whether new drainage is actually in the other contractor's scope.

Straight up, the reason we phase the work and run the magnetic sweep at the end of every day is that a commercial roof replacement that disrupts your tenants isn't a win. Keeping your building open and your parking lot nail-free is part of the scope, even though it never shows up as a line item on the bid.

A TPO warranty is only as real as the certification behind it. GAF's single-ply manufacturer warranty requires the installer to hold a current commercial certification and to register the coverage in the building owner's name within a defined window. Miss either and the "warranty" is a piece of paper that pays nothing.

ARP Roofing is a GAF GoldElite Commercial Contractor, GAF's top commercial designation, the certification that covers the GAF EverGuard TPO and PVC single-ply systems we install. That certification is what unlocks the manufacturer warranty on your TPO system and registers it in your name. On the workmanship side, we back our own installation, so if a seam or flashing detail we installed ever fails, you have one company to call, not a finger-pointing match between the manufacturer and the crew.

• Manufacturer coverage on the GAF EverGuard membrane and system, registered in the building owner's name.
• ARP workmanship backing on the install: the seams, flashings, and penetrations we welded.
• One point of accountability: the company on your invoice is the company that answers the warranty call in year fifteen.

When you sign a commercial roof contract, you're not hiring a logo. You're hiring a certified installer, a documented process, and a company that will still answer the phone when the warranty question comes up years from now.

• The right certification for the membrane. ARP Roofing is a GAF GoldElite Commercial Contractor, and also an Elevate Red Shield Licensed Contractor and a UNIFLEX Premier Elite Contractor. On a TPO system, the GAF GoldElite credential is what makes your EverGuard warranty enforceable.
• A COO who reads roofs for a living. Randal Williams is a former commercial high-rise field engineer and Xactimate expert with 15+ years in roofing and construction. He has scoped and documented more than $7 million in insurance claim work across Texas, including single commercial claims above $2 million, supporting property managers and building owners through the claims process as the contractor of record. On commercial single-ply, that field-engineering eye is the difference between a system spec'd for your building and one spec'd for the contractor's convenience.
• One point of contact and a documented job. Your ARP project manager runs the schedule, coordinates the permit, and delivers photo documentation from assessment through warranty registration, the record you hand ownership when they ask how the roof is doing.

TPO is a 20-to-30-year decision, so here's the honest read on who we serve well, and who we don't.

You're probably the right fit if you...

• Want a written scope of work before anyone touches the roof, every time
• Need photo documentation you can share with ownership or the property owner
• Want one contractor for the assessment, the install, and the warranty that backs it
• Are holding the building long-term and want a partner, not a one-off vendor
• Want a certified GAF EverGuard installer, not a general roofer learning single-ply on your roof

You're probably not the right fit if you...

• Need the lowest bid in the market, which is a respected decision we can't always match
• Need work to begin within 24 hours with no inspection or documentation
• Manage a building under 1,000 sq ft, where our minimum scope makes the economics work against you
• Have been quoted a price that doesn't allow a proper, manufacturer-spec installation

Whether you choose ARP or someone else, ask every roofer who quotes your TPO project these three questions. The answers tell you more than any star rating.

1. "Show me your written scope before I sign anything." A real contractor hands you a written scope (membrane type, mil thickness, attachment method, flashing and penetration detail, drainage corrections, permit handling, and warranty terms) before any deposit. If a contractor can't produce one, the verbal-promise quote is where the project goes wrong.

2. "Who's my single point of contact, and will I get photo documentation at each stage?" The company on the invoice should give you one project manager from contract through warranty registration (not a rotating cast), plus a photo record at assessment, mid-install, and final inspection. A contractor who can't show how they document the work is telling you how the job will actually go.

3. "Which manufacturer certification do you hold, and when does my TPO warranty register?" GAF EverGuard warranties require the installer to hold a current commercial certification and to register the coverage in the building owner's name within a defined window. Ask which certification level the contractor holds (GAF GoldElite Commercial is the top tier), what warranty term it unlocks, and when registration happens. Vague answers mean the warranty probably isn't real.

• ASTM D6878: the material standard behind TPO single-ply membrane referenced in the systems overview.

Manufacturer Certifications:

• GAF GoldElite Commercial Contractor (GAF's top commercial cert covering GAF EverGuard TPO/PVC single-ply)
• Elevate Red Shield Licensed Contractor
• UNIFLEX Premier Elite Contractor

Industry Membership:

• BBB A+ Accredited
• CTRCA (Central Texas Roofing Contractors Association) Member