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WPI-8, WPI-8-C, WPI-8-E: What Each Beaumont Roof Certificate Means

Same Three Letters, Three Different Documents

If you've owned a house in Jefferson County long enough to have re-roofed it, you've probably heard the term WPI-8 tossed around like everyone already knows what it means. Most people don't, and the confusion usually starts because there isn't just one WPI-8 — there are three versions of it, and which one applies to your house depends on when the roof went on and who signed off on it.

A WPI-8 is the Windstorm Certificate of Compliance. It's the document that tells TWIA — the Texas Windstorm Insurance Association — that a roof, or a whole structure, was built or repaired to the windstorm construction requirements TDI adopted for first-tier catastrophe counties, which includes Beaumont, Port Arthur, Nederland, Port Neches and Groves. Vidor, Orange and Lumberton sit outside that first-tier list, so this whole certificate system doesn't apply to those addresses the way it does here.

The letter at the end tells you who issued it and under what circumstances:

  • WPI-8 — the standard certificate for new construction or a full re-roof, issued by a TDI-appointed inspector or a licensed engineer at the time the work is done.
  • WPI-8-C — a certificate issued directly by TWIA rather than TDI. TWIA issued these between January 1, 2017 and May 31, 2020. If your roof or siding work falls in that window, your certificate carries the TWIA name on it, not TDI's.
  • WPI-8-E — an engineer's certificate covering improvements completed after the original construction, issued by a Texas-licensed engineer when the work can be verified as built to spec even without a TDI inspector present during construction.

Why the Issuer Changed in 2020

Since June 1, 2020, every certificate — regardless of the letter — comes from TDI, not TWIA. TWIA stopped issuing its own C-series certificates as of that date, which means any roof completed on or after June 1, 2020 will have a TDI-issued document, even if the property is also TWIA-covered. This matters when you're trying to track down paperwork for an older re-roof: a certificate from before June 1, 2020 may be in TWIA's lookup, while a later one will be in TDI's.

A West End House, Worked Through

Take a fairly typical example: a brick-veneer house in Beaumont's West End, re-roofed in 2019 after storm damage, sold to a new owner in 2023. The new owner needs proof of the certificate for their TWIA coverage renewal and doesn't know where to start. Here's the sequence that actually works:

  1. Check the date first. If the roof went on before June 1, 2020, start with TWIA's certificate lookup, not TDI's — that's where WPI-8-C records from the 2017–2020 window are kept.
  2. If the date is after June 1, 2020, go straight to the TDI certificate search instead. TWIA's own database won't have it.
  3. If neither search turns up a match, call TDI directly at 800-248-6032 and select option 3. Have the address, the county, and an approximate completion date ready — the phone line can often locate records that don't surface in the online search, especially for homes that changed hands since the work was done.
  4. If no certificate exists at all — not lost, just never issued — that's a different problem, and usually means the original work wasn't inspected under the windstorm program to begin with. A roof inspection and certificate check can confirm whether the roof itself would still qualify.

For a 2019 roof like that one, the TWIA lookup is the first stop. Not every address is that simple; older homes near Calder Avenue or Old Town, re-roofed in stages or by more than one contractor over the years, sometimes have partial records or none.

When the Certificate Can't Be Issued As-Is

Occasionally an inspector or engineer looks at a roof and can't certify it in its current condition — a repair that wasn't sealed to spec, decking that doesn't meet nail-hold requirements, or flashing details that don't match the adopted standards. In that case, the honest answer is that it needs work before a WPI-8 of any letter can be issued, not that the paperwork is simply missing. A re-roof built to windstorm specs from the outset avoids that gap entirely, since the certificate follows the completed work as part of the process rather than being chased down after the fact.

If you're not sure which certificate applies to your house, or you've moved to Beaumont and inherited a roof with no visible paperwork, our Beaumont service area page is a reasonable place to start sorting out what you actually have.

The takeaway: know your re-roof date first, because it tells you whether to search TWIA or TDI, and a missing certificate almost always means a phone call to TDI comes before it means a new roof.

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