ANSI/SPRI/FM 4435/ES-1 edge systems
What ES-1 tests and does not, the cover-and-cleat system, how to read a published rating and what limits it, a worked wind screening, installation in the maker's order, the defects that break an "as tested" record, and a verification packet.
4 lessons · about 42 min · 16 diagrams · 0 videos
Version 1.0.0
Builds on these modules
Related Academy lessons
Lessons
0 of 4 complete
Lesson 1 · 10 min · 10 slides · 6 questions
ANSI/SPRI/FM 4435/ES-1 edge systems: principles and terminology
Why the roof perimeter matters, the cover and cleat, ES-1 as a test of a whole assembly, the SPRI standards timeline, the three test methods, the IBC edge-system rule, and the fall-protection boundary at an unprotected edge.
You will be able to: Name the parts of a cleated edge system, say what ES-1 tests and what it does not, place it among the SPRI edge standards, and say where the building code asks for it.
Not startedStart →Lesson 2 · 10 min · 11 slides · 6 questions
ANSI/SPRI/FM 4435/ES-1 edge systems: materials, standards and design constraints
Demand versus tested resistance, where demand comes from, how to read Drexel published sustained pressures, what moves a rating, what a record covers, the safety-factor disagreement, and gauges, gaps and isolation in Drexel's guides.
You will be able to: Read a published edge-system rating, say what limits it and what a test record covers, and say whose number each figure is.
Not startedStart →Lesson 3 · 11 min · 12 slides · 6 questions
ANSI/SPRI/FM 4435/ES-1 edge systems: methods and worked application
A seven-step method, a worked wind screening at one corner, three bases that change a verdict, piece-length planning, the install order for drip edge, fascia, gravel stop and coping, nailers and isolation, fall protection and the job packet.
You will be able to: Apply a documented method: find demand, pick a tested assembly, check its configuration, plan piece lengths, install in sequence and record the assumptions.
Not startedStart →Lesson 4 · 11 min · 12 slides · 6 questions
ANSI/SPRI/FM 4435/ES-1 edge systems: defects, verification and case study
How edges fail in testing, a cleat set a quarter inch high, defects the install guides warn against, why substitution voids a record, a shop and field checklist, what a custom profile cannot claim, and a coping case study on a 24 in wall.
You will be able to: Diagnose a plausible edge-system defect, say what corrects it, and document the evidence for review.
Not startedStart →
Practical task
Build an edge-system selection packet for one low-slope roof of your own design (or a job you have worked on): set the demand at the corner, choose a published tested assembly whose size window covers the job, and write the checks that keep the build "as tested".
Hand in
- A decision rationale: the edge type, the test method that applies, the assembly chosen and why its size window covers the job, with every rating labelled as the maker's value
- A sketch of the edge in section showing the nailer, membrane, cleat, cover, fasteners and the engagement of the cover's drip with the cleat
- An assumptions sheet with units: wind speed, exposure, mean roof height, enclosure, the zone used, the pressure basis and factor of safety you assumed, each marked as supplied by the engineer of record or assumed
- A cut-list plan for one 24 ft run of straight lengths that avoids short pieces side by side, and, for the system you chose, the splice plates, gaps or overlaps its guide calls for at each joint
- A shop and field checklist and a one-page list of the records you would file, and what you would do if anything differed from the tested assembly
Rubric
| Criterion | Meets the standard when |
|---|---|
| Demand | The demand at the corner is stated with its inputs and units, labelled as a screening, with the basis (factor of safety) named as the engineer of record's choice. |
| Assembly choice | The chosen assembly is a published tested assembly whose face and wall window cover the job; no number is borrowed from a different window, system or gauge. |
| Provenance | Every rating is attributed to the maker and no statement says what the standard itself requires beyond what its publisher describes. |
| Build matches the record | Cover metal, cleat gauge, fasteners, spacing and gaps are the ones in the record and the maker's guide, and any difference is a stop-and-ask item. |
| Safety | The packet names fall protection at the unprotected edge before any metal is carried to it, citing the OSHA rule, and no step asks anyone to lean over an open edge. |