The method in seven steps
A working method has seven steps: find the demand, pick the edge type and test method, pick a tested assembly whose size window covers the job, check the build against its record, get the certificate for that assembly, install as tested, and file the record.
If no tested assembly covers the job, ask the engineer of record: a custom shape carries no ES-1 rating.
Seven numbered steps down the page: find the demand, pick the edge type and test method, pick a tested assembly whose window covers the job, check the build against its record, get the certificate for that assembly, install as tested, file the record, with a note to ask the engineer of record if no assembly covers the job.
- 1
- Find the demand from the project's wind data, set by the engineer of record
- 2
- Decide whether the edge is a fascia-type face (RE-2) or a coping (RE-3)
- 3
- Pick a tested assembly whose face and wall window cover the job
- 4
- Check metal, gauge, cleat, fasteners and spacing against the assembly's record
- 5
- Get the ES-1 certificate of compliance for that assembly
- 6
- Install in the maker's order with the maker's fasteners and gaps
- 7
- File the certificate, drawings, wind basis and checklist
Sources
- Understanding ES-1: Proper Specification and Implementation - IIBEC
- ANSI/SPRI/FM 4435/ES-1-2022 FAQs (draft, June 2023) - SPRI
- AFS Design Center edge wind screening: the method, the Drexel published ratings and the list of what AFS does not hold - Architectural Flashing Supply