Windstorm Inspection Process | Appointment Process | Building Products | Building Codes | Construction Details
Building Code
- TDI Adopted Building Code Standards
- Texas Revisions to Building Code Standards
- TDI Windstorm Resistant Construction Guide and Code Interpretations
- TWIA Building Code for Windstorm Resistant Code
Building Products
Note: Effective August 1, 2018, TDI will no longer maintain a list of asphalt shingle products that complies with the adopted standards for the Windstorm Program. The adopted code standards require shingle manufacturers to indicate compliance to either ASTM D 3161 or ASTM D 7158 standards on the shingle wrapper. All windstorm inspectors (Appointed Qualified Inspectors and TDI Field Inspectors) should be looking for these standards on the shingle packages as part of the inspection process. Since the code requires manufacturers to label their products, it is not necessary for TDI to maintain the asphalt shingle list.
- Acceptable Underlayment Alternatives
- List of Acceptable Alternative Underlayments
- Building Products - FAQ(s)
- Product Evaluation Index
- Products Qualifying for Impact Resistant Roofing Credits (UL 2218)
- Submittal Requirements for Product Evaluations
Construction Details
- TDI AutoCAD Details This is a Zip file that may be downloaded
- APA AutoCAD Details This link will take you directly to APA's AutoCAD web page