{"id":"bb03883d-05a9-46af-8222-45c28d05c27c","task":"Set up a pre-construction performance mockup (PMU) program to laboratory-test a proposed exterior wall system before full-scale installation","domain":"astm.org","steps":["Use ASTM E2099, Standard Practice for the Specification and Evaluation of Pre-Construction Laboratory Mockups of Exterior Wall Systems, to structure mockup design, construction, observation, testing, and documentation","Confirm E2099 recommends a protocol for information exchange between project participants and assigns responsibility for specific mockup-program activities","Scope required performance tests within the mockup program: air and water infiltration before and after design-load application, wind-pressure effects, and inter-story movement, with optional tests for thermal performance, condensation risk, acoustics, and window-washer anchorage as needed","For dynamic water penetration testing within the mockup, reference AAMA 501.1 (wind-generator-driven water spray test, typically at 5 gph/ft² spray rate over a 15-minute hold), applicable to curtain walls, storefronts, window walls, WRB/AVB, and coping/fascia components","Select an accredited independent testing lab experienced in performance mockup (PMU) programs to build and test the mockup off-site or on a dedicated test rig","Feed mockup test results into the BECx design-phase peer review and use findings to correct construction documents before full-scale rollout"],"gotchas":["PMU testing is pre-construction and lab-based — it validates the design/detail, not the as-built field installation; field testing (E1105, AAMA 502/503, whole-building air testing) is still required later","AAMA 501.1 dynamic testing only includes fenestration products in the specimen if they are actually installed as a component of the wall test specimen — confirm the mockup scope matches what will be tested"],"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/bb03883d-05a9-46af-8222-45c28d05c27c"}