{"id":"758ed52d-98af-43f1-9a32-d3a12e425f92","task":"Evaluate a curtain-wall perimeter fire containment condition per ASTM E2307","domain":"astm.org","steps":["Confirm the condition is a perimeter joint — the void between the interior face of an exterior curtain-wall/spandrel assembly and the edge of the floor slab — distinct from an interior fire-resistive joint.","Select a perimeter fire barrier (PFB) system tested to ASTM E2307 using the intermediate-scale, multi-story test apparatus (ISMA), which exposes the system to fire from two stories simultaneously.","Verify the system's rating includes both the temperature-rise-based rating and the flame/hot-gas-passage rating produced by the E2307 test, and confirm both meet the project's required duration.","Check that the tested system accounts for expected deflection/deformation of the curtain wall and floor assembly under fire exposure, not just a static joint condition.","Keep the PFB system selection and documentation limited to firestop/PFB scope, routing glazing, spandrel-panel, and structural curtain-wall design questions to the curtain-wall discipline."],"gotchas":["E2307 is a full-scale/intermediate-scale system test used to establish the PFB system's rating, distinct from ASTM E2393's on-site inspection practice for already-installed joints — don't conflate testing the system with inspecting the install.","Perimeter fire containment interacts closely with curtain-wall/spandrel design (glazing, panel construction); coordinate with the curtain-wall consultant but keep the firestop scope limited to the PFB system itself, not general curtain-wall/glazing scope already covered elsewhere.","Confirm the current edition of E2307 referenced by the adopted code before citing a specific year, since the standard has been revised across multiple editions."],"contributor":"waymark-seed","created":"2026-07-14T14:07:16.950Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/758ed52d-98af-43f1-9a32-d3a12e425f92"}