Corpus Christi, Texas
Texas Gulf Coast Windstorm Roof Certification — WPI-8 and FORTIFIED
Here's what WPI-8 and FORTIFIED actually mean for a Gulf Coast roof — and who issues each one.
Texas Gulf Coast windstorm roof certification means building your roof to windstorm code so the WPI-8 Certificate of Compliance can be issued — the certificate TWIA requires in the designated coastal counties, from the Coastal Bend through Calhoun and Matagorda. ARP builds to code and coordinates your WPI-8 inspection with a qualified Texas windstorm engineer, so you never manage it yourself.
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What WPI-8 Means
What WPI-8 Means for Your Gulf Coast Roof
ARP Roofing & Remodeling is a Corpus Christi roofing company serving the Texas Gulf Coast from the Coastal Bend to the mid-coast — Corpus Christi, Rockport, Aransas Pass, Ingleside, and Portland, up through Port Lavaca, Port O'Connor, Palacios, and Bay City. If you own a home or building anywhere along this stretch, your roof sits inside the Texas Windstorm Insurance Association (TWIA) designated catastrophe area, and that changes what a new roof has to prove.
WPI-8 is the Certificate of Compliance the Texas Department of Insurance (TDI) issues for a roof that has been built or replaced to the windstorm building code. In the TWIA designated counties along this coast — Nueces, San Patricio, Aransas, Kleberg, and Refugio across the Coastal Bend, and Calhoun and Matagorda up the mid-coast — you generally cannot get or keep TWIA windstorm coverage on new roof work without it. No WPI-8 on file, no windstorm insurance on that roof.
It helps to separate two forms people mix up:
- WPI-1 is the application for windstorm inspection — the paperwork that starts the process. As of the April 1, 2026 TDI update, WPI-1 applications must be certified against the 2024 IRC or IBC, the newer code editions now in force for new construction and reroofing in TWIA designated areas.
- WPI-8 is the certificate issued at the end, once the qualified inspector or engineer confirms the completed roof meets the windstorm attachment and construction requirements.
The distinction matters because the Gulf here is not theoretical. Direct hurricane landfall, sustained wind, storm surge, and salt-laden air are the coast's normal — Hurricane Harvey came ashore at Rockport and Port Aransas in 2017, which is when we came to the region to help rebuild, and the same storm drove surge into Port Lavaca and the Calhoun County shoreline. A roof that satisfies WPI-8 is a roof engineered to hold in that wind, not just to look finished.
Why ARP
How ARP Builds Your Gulf Coast Roof to Windstorm Code
Here is the line that matters, and we say it plainly: ARP does not issue the WPI-8 certificate. No roofing contractor does. The WPI-8 Certificate of Compliance is issued by TDI through a qualified Texas windstorm engineer or a TDI-appointed inspector after their milestone inspections.
What ARP controls is the part that earns the certificate. We build your roof to the TDI windstorm attachment schedule — sealed roof deck, enhanced deck fastening with ring-shank nails at the tighter required spacing, drip edge at every eave and rake, code-approved edge metal, and impact-rated shingles where the standard calls for them. Then we coordinate the inspection milestones — decking, fastening, and finish — with the windstorm engineer, and hand over the documentation your carrier and TWIA need. You do not chase the engineer, schedule the milestone inspections, or assemble the paperwork. That coordination is the work we take off your plate.
Randal Williams is a former commercial high-rise field engineer and Xactimate expert with 15+ years in roofing and construction. Under his operational leadership, ARP Roofing has completed more than $24 million in residential and commercial roofing projects across Texas. That insurance-and-engineering depth is exactly what a coastal roof needs when the certificate on file decides whether a claim gets paid.
ARP coordinates your WPI-8 inspection and FORTIFIED documentation with a qualified Texas windstorm engineer — you don't have to manage that process yourself.
Randal Williams · COO, ARP Roofing & Remodeling
WPI-8 and FORTIFIED
WPI-8 and FORTIFIED — What Your Gulf Coast Roof Now Needs
WPI-8 is not the only standard on a Gulf Coast project. FORTIFIED is a beyond-code construction standard developed by the Insurance Institute for Business & Home Safety (IBHS) — sealed deck, tighter nailing, impact-rated shingles, and enhanced roof-to-wall connections. As of April 2026, FORTIFIED is required for WPI-8 certification in the TWIA windstorm districts along the Texas Gulf Coast — it is no longer an optional upgrade, but part of what a compliant coastal roof has to meet. FORTIFIED comes in three tiers (Roof, Silver, Gold), and a FORTIFIED designation must be renewed every five years.
On the coast the two now go together: WPI-8 is the certificate, and FORTIFIED is the beyond-code standard the roof must meet to earn it.
| Feature | WPI-8 | FORTIFIED |
|---|---|---|
| Issued by | Texas Department of Insurance (TDI) | Insurance Institute for Business & Home Safety (IBHS) |
| Required? | Yes — required for TWIA windstorm insurance in designated counties | Yes — required for WPI-8 certification in TWIA districts (as of April 2026) |
| Applies to | The 14 Gulf Coast TWIA designated catastrophe counties | Coastal roofs in the TWIA windstorm districts |
| Purpose | TWIA eligibility — windstorm code compliance | Beyond-code resilience that WPI-8 certification now requires |
| Inspection | TDI inspector or appointed windstorm engineer | Independent FORTIFIED Evaluator + IBHS review |
WPI-8 is the certificate TDI requires for TWIA windstorm coverage in the designated Gulf Coast counties, and FORTIFIED is the beyond-code IBHS standard the roof must meet to earn it — as of April 2026, FORTIFIED is required for WPI-8 certification in the TWIA windstorm districts.
ARP coordinates both the WPI-8 inspection and the FORTIFIED documentation through the same qualified Texas windstorm engineer, so one build produces one clean paper trail for your carrier.
Storm & Insurance
How the Gulf Coast Windstorm Certification Process Works
Every certified roof we build runs the same three steps.
- Free inspection and a written scope. We walk your roof, document its condition with photos, and write a scope built to the windstorm code your certificate will require — materials, attachment detail, permit handling, and warranty terms.
- Build to code, coordinate the inspection. We install to the TDI attachment schedule and coordinate the decking, fastening, and finish milestones with the qualified windstorm engineer who inspects and issues the WPI-8.
- Documentation and warranty registration. You receive the engineer's certificate and the full documentation package for TWIA and your carrier, and we register your workmanship warranty within 30 days.
Permits for the reroof or new roof behind your certificate are pulled through your local building authority — the City of Corpus Christi Development Services at 2406 Leopard St for Coastal Bend projects, or the county and city office with jurisdiction over your address up the mid-coast — so the build is inspected and on record before the windstorm certificate is finalized.
Storm & Insurance
Get Windstorm-Ready Across the Texas Gulf Coast
If you're replacing a roof anywhere along the coast — Corpus Christi, Rockport, Aransas Pass, Ingleside, Portland, or up the mid-coast in Port Lavaca, Port O'Connor, Palacios, and Bay City — the first step is a free, photo-documented inspection and a written scope built to windstorm code.
More Coastal Bend roofing: see the Corpus Christi roofing company behind the work.
Get your Texas Gulf Coast windstorm assessment
What windstorm-code roofing involves
A windstorm-certified roof isn't priced off a chart — it's built to the TDI windstorm attachment schedule and inspected by a qualified Texas windstorm engineer, who issues the WPI-8. Here's what that involves, and how ARP coordinates the build and the inspection so you never manage the engineer or the paperwork.
What ARP builds to code
Sealed roof deck, enhanced deck fastening with ring-shank nails at the tighter required spacing, drip edge and code-approved edge metal at every eave and rake, and impact-rated shingles where the standard calls for them — built to the TDI windstorm attachment schedule your WPI-8 is inspected against, and to the FORTIFIED standard now required for certification in the TWIA districts.
We coordinate the inspection and paperwork
ARP does not issue the WPI-8 — no roofer does; TDI issues it through a qualified Texas windstorm engineer. We coordinate the decking, fastening, and finish milestones with that engineer and hand you the documentation package your carrier and TWIA need. You don't chase the engineer, schedule the inspections, or assemble the paperwork.
Book your free Gulf Coast windstorm assessment
A photo-documented inspection and a written scope built to windstorm code — your first step toward the WPI-8.
Request in — we'll text to confirm
Need it sooner? Call or text (361) 238-4255.
Honest fit check
Is ARP the right fit for your Corpus Christi project?
The best way to judge any Corpus Christi contractor — us or anyone else — is to ask for a written scope, ask who your single point of contact is, and ask when the manufacturer warranty gets registered in your name. If a roofer can't answer those three plainly, that's your answer.
Yes — we're a match
A good fit if you
- Want a roofer your Corpus Christi neighbors have actually used — not a pop-up tent after the last hailstorm.
- Want everything documented and in writing, with photos, before any crew gets on the roof.
- Plan to stay in your Corpus Christi home or hold the property long term.
- Had recent hail or wind damage and want it documented correctly for your carrier.
No — we'll say so up front
Not the right fit if you
- Need a commercial job below our minimum repair scope, or a firm residential repair price over the phone — we quote every repair after an on-roof inspection.
- Need someone to start tomorrow with no inspection.
- Are choosing purely on the lowest bid, without reading the scope underneath it.
- Want a contractor to pay, waive or "take care of" your deductible — a criminal offense in Texas under Business & Commerce Code § 27.02.
We'd rather tell you that on the phone than waste a walkthrough.
Questions that decide the job
Corpus Christi roofing — frequently asked questions
How do I get a windstorm certificate?
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Do I need a windstorm certificate in Texas?
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How long does TWIA windstorm certification last?
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How do I get my WPI-8 certificate in Texas?
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