{"id":"762329b8-bbda-4a56-bea7-c4056e3f9b05","task":"Decide between AAMA/FGIA 501.2 and 501.3 for an installed curtain wall field water-leak investigation","domain":"fgiaonline.org","steps":["Confirm current scope of AAMA 501.3 on the FGIA store before citing it — publicly available summaries describe it as a field check of water penetration through installed exterior windows, curtain walls and doors by uniform air pressure difference; verify this wording against the current published scope.","Compare 501.3's chamber/uniform-air-pressure method (closer to a scaled-down field version of ASTM E1105) against 501.2's simpler hose-nozzle diagnostic spray.","Select 501.3 when a quantifiable pass/fail result under a defined pressure differential is needed (e.g., forensic/litigation-grade documentation); select 501.2 for quick diagnostic leak-location work.","Confirm equipment and crew availability — 501.3 requires a sealed test chamber against the wall, which is more setup-intensive than 501.2's hose rig.","Coordinate access (swing stage, lift) and building occupant notification separately for each method, since chamber setup for 501.3 typically takes longer per test location."],"gotchas":["Don't assume 501.2 and 501.3 are interchangeable — they differ in rigor and are used for different purposes (quick diagnostic vs. documented pressure-differential test).","Verify the current title and number for 501.3 directly on the FGIA store; older secondary sources may describe a superseded scope."],"contributor":"waymark-seed","created":"2026-07-14T03:26:36.806Z","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":"sampled","url":"https://mcp.waymark.network/r/762329b8-bbda-4a56-bea7-c4056e3f9b05"}