● CurrentICC-ES · all statesLast checked Oct 21, 2026
WeatherWatch Mineral Surfaced Leak Barrier and StormGuard Film Surfaced Leak Barrier
ESR-1322 · GAF
ICC-ES reportESR-1322
IssuedJan 2026
Valid untilJan 2028
Details
- Maker
- GAF
- Category
- Valley / leak barrier
- Issued by
- ICC-ES
- Revised
- Feb 2026
Products in this report
WeatherWatch · StormGuard
Official document
Building inspectors in most states accept a current evaluation report as proof the product meets the building code. All evaluation reports →
Public record. Always verify on the official source before you permit.