The method, step by step
Every edge order runs the same path, from the specification to a labelled bundle.
A Drexel ES-1 system follows Drexel's print approval and guide, with the tested cleat and fasteners and, per AFS's register, material bought through Drexel. A custom coping follows the project's shop drawing and makes no ES-1 claim.
A flow chart of ten numbered steps. 1 read the specification and approval. 2 decide whether it is a Drexel ES-1 system: yes leads to Drexel parts as tested, no to a custom piece made to the shop drawing. Both rejoin at 3 measure the wall width, then 4 add the allowance, 5 draw in FlashDraft, 6 check girth, legs and hems, with a fix loop back to 5, 7 check face thickness, 8 plan lengths and joints, 9 form on the folder, 10 inspect, label and pack.
- 1
- Read the specification, the drawings and any print approval
- 2
- Drexel ES-1 system? Yes: Drexel's print approval and guide, the tested cleat and fasteners, material through Drexel (AFS register). No: custom, to the shop drawing, no ES-1 claim
- 3
- Measure the wall width
- 4
- Add the allowance the approved shop drawing or print approval shows; confirm with the maker where its documents differ
- 5
- Draw the profile in FlashDraft, legs to the mold line
- 6
- Check girth within 48 in, legs at least 0.75 in, end flanges 0.5 in, hem returns 0.375 in
- 7
- Check face thickness against the spec and ED-1
- 8
- Plan lengths, joints, gaps or laps and splice plates; no short closers
- 9
- Form on AFS's Thalmann folder
- 10
- Inspect, label with the documentation, pack
Sources
- ES-1/GT-1 Certification Program Product Line Card, DM-19063 (12.09.25), AFS file copy - Drexel Metals
- Drexel Metals ES-1 installation guides - Drexel Metals
- AFS internal register: Drexel ES-1 systems on record and AFS's record of its Drexel ES-1/GT-1 certification terms (AFS wind register) - Architectural Flashing Supply
- AFS fabrication limits - materials, thicknesses, bend rules and sizes the shop can make - Architectural Flashing Supply