WPI-8 Windstorm Certification in Houston, TX
Harris County • Wind Zone II (130 mph)
Licensed professional engineers providing fast WPI-8 and WPI-8E windstorm certification for residential and commercial properties in Houston. TDI applications for ongoing and completed construction, serving Harris County with 14-day standard or 5-day rush service. Call (713) 357-5064.
Windstorm Certification Requirements
- TDI windstorm certification required for all new construction
- Re-roofing projects require certification in designated areas
- Submit certification with building permit application
- Must meet current IRC and IBC wind resistance standards
Applicable Building Codes
International Residential Code (IRC) 2021
International Building Code (IBC) 2021
28 TAC Chapter 5 (TDI Windstorm Inspection Rules)
Local amendments for coastal construction
Common Projects We Certify
Houston Windstorm Certification FAQs
Do I need windstorm certification in Houston, TX?
Often, yes. Only the TDI-designated portion of Harris County requires windstorm certification for new construction, re-roofing, and major exterior modifications, so it depends on your exact address in Houston. WPI-8 certification is for ongoing construction, while WPI-8E applies to construction that has been completed. Call (713) 357-5064 to verify your property's requirements.
How long does WPI-8 certification take in Houston?
Our standard turnaround is 14 days from deposit to TDI submission for Houston properties. Rush service is available with a 5-day turnaround. The on-site inspection typically takes 30-60 minutes depending on project complexity. Call (713) 357-5064 to schedule.
What building codes apply to windstorm construction in Houston?
Construction in Houston must comply with the International Residential Code (IRC) 2021, International Building Code (IBC) 2021, 28 TAC Chapter 5 (TDI Windstorm Inspection Rules), and Local amendments for coastal construction. Our licensed engineers verify compliance with all applicable codes during the certification process.
How do I get a building permit in Houston for a windstorm-area project?
Building permits in Houston are handled by Houston Permitting Center. TDI windstorm certification must be submitted with your permit application for construction in designated catastrophe areas. Contact Houston Permitting Center at (832) 394-8811 for permit requirements, or call us at (713) 357-5064 to start your certification.
Can you certify a completed roof or addition in Houston?
Yes. If construction in Houston has been completed without certification, we can perform a WPI-8E (completed construction) inspection. Our licensed engineers will verify that the work meets current wind resistance standards and submit the certification to TDI. Call (713) 357-5064 to discuss your project.
Turnaround Time
5-14 days (Rush 5 days / Standard 14 days from deposit)