● CurrentTexas TDILast checked Oct 21, 2026
Alliance Steel Alliance Lok 16 (ALok-16) 24-gauge Steel Standing Seam Roof Panels Installed Over Steel Purlins
RC-637 · Alliance Steel
TDI reportRC-637
Effective12/01/2023
Valid until12/31/2027
Details
- Maker
- Alliance Steel
- Category
- Metal
- Issued by
- TDI
Products in this report
Alliance Lok 16 (ALok-16) 24-gauge Steel Standing Seam Roof Panels Installed Over Steel Purlins
Official document
Needed for roofs in the Texas coastal counties (15) that require a windstorm inspection (WPI-8). All Texas evaluations →
Public record. Always verify on the official source before you permit.