Check TDI Windstorm Applicability for Your Texas Property
The Texas Department of Insurance (TDI) windstorm program applies to construction in designated catastrophe areas — often along the coast and in parts of inland counties. Whether WPI-8 or WPI-8E applies depends on the property location and the construction scope, not the county name alone. ALFAP TX reviews the verified address and reports whether the property appears within the TDI designated area, then points you to official TDI verification when the result is uncertain.
Preliminary guidance only. ALFAP TX is an informational screening tool. Results are not an official agency determination, FEMA determination, permitting authority confirmation, survey, legal opinion, engineering opinion, inspection, signed or sealed engineering report, or guarantee of approval. Requirements must be confirmed with the applicable authority and, when appropriate, a licensed Professional Engineer.
What this check reviews
TDI designated catastrophe area
Whether the verified property appears within the Texas Department of Insurance designated windstorm area, based on location rather than county name alone.
WPI-8 vs WPI-8E distinction
An explanation that WPI-8 relates to inspected ongoing or new construction and WPI-8E to completed construction — both are certificates issued by TDI, not by ALFA Engineering.
Review required flag
When applicability cannot be confidently determined, ALFAP TX returns Review Required and directs you to official TDI verification.
Understanding your result
Required
The property appears within the TDI designated area, so windstorm program requirements may apply to qualifying construction. TDI, not ALFA Engineering, decides program requirements and issues certificates of compliance.
Not Required
The property appears outside the designated area based on current data. This is preliminary and should still be confirmed with TDI if your project or lender requires confirmation.
Review Required
Applicability could not be confidently determined from available data. Confirm windstorm applicability directly with TDI before relying on the result for construction or insurance decisions.
When you may need an engineer
- Your project is in the TDI designated area and windstorm engineering or inspection may be required for a WPI-8 process.
- You need structural documents prepared for windstorm code requirements.
- Your lender or insurer requests windstorm documentation for a coastal property.
- You want a windstorm inspection coordinated with the TDI certificate process.
Frequently asked questions
How do I know if my Texas property is in the TDI windstorm area?
TDI windstorm applicability depends on whether the property lies within the Texas Department of Insurance designated catastrophe area, which can follow partial-county and coastal boundaries. ALFAP TX reviews the verified address location and reports whether the property appears within the area, but TDI confirms final applicability.
What is the difference between WPI-8 and WPI-8E?
WPI-8 and WPI-8E are certificates of compliance issued by the Texas Department of Insurance. WPI-8 is associated with inspected ongoing or new construction, while WPI-8E applies to completed construction. ALFA Engineering does not issue these certificates; TDI does. ALFAP TX distinguishes the two so you understand which process may apply.
Can ALFAP TX confirm I need a TDI windstorm inspection?
No. ALFAP TX provides preliminary applicability guidance based on location. TDI determines program requirements and issues certificates of compliance. Confirm windstorm requirements directly with TDI, especially when the result is uncertain or your lender requires documentation.
Does TDI windstorm apply to inland Texas counties?
The TDI designated area can include parts of inland counties, not only the immediate coast, because boundaries follow catastrophe-area designations rather than county lines. ALFAP TX checks the property location rather than assuming from the county name, but TDI confirms applicability.
If my property is in the TDI area, what engineering might I need?
Qualifying projects may need windstorm engineering and a windstorm inspection coordinated with the TDI certificate process. Structural documents may be prepared to meet windstorm code requirements. ALFA Engineering can assist qualifying projects, but TDI issues the certificate of compliance.
Other ALFAP TX preliminary checks
Related Alfa Engineering services
When your result suggests engineering may be relevant, these Alfa Engineering services may apply. A Texas-licensed Professional Engineer confirms the actual scope for your project.