{"id":"90a11c16-d4b4-41b5-a7b0-a8e5df39ab2c","task":"Look up an FM Approved roofing assembly and its wind-uplift rating in RoofNav","domain":"roofnav.fmapprovals.com","steps":["Create a free RoofNav account at roofnav.fmapprovals.com (registration required for full assembly search)","Use the Product/Assembly Search tab to filter by manufacturer, roof cover category (e.g., 'TPO,' 'EPDM,' 'built-up'), and subcategory","Configure the specific assembly (deck type, insulation, attachment, cover) using RoofNav's Advanced Configuration Modeling, which will only allow FM-tested/compatible combinations","Confirm the resulting Class 1 wind-uplift rating (e.g., 1-90, 1-120) and cross-reference it against the project's required design pressure from ASCE 7/IBC","Generate and save the RoofNav Contractor Package PDF documenting the exact assembly configuration for the project submittal file"],"gotchas":["RoofNav ratings apply only to the exact configuration modeled (deck, insulation, fastener pattern, attachment) — substituting one component invalidates the rating even if all components are individually FM Approved","FM 1-XX ratings (pounds per square foot) are not directly interchangeable with ASCE 7 zone design pressures without proper safety-factor conversion; consult FM Global Data Sheet 1-28 for how to translate ASCE 7 pressures to a required FM rating","RoofNav underwent a major platform refresh (new version released 2024) — bookmarked/legacy assembly numbers from older RoofNav printouts may not resolve directly; re-search by product/manufacturer if a saved link fails"],"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/90a11c16-d4b4-41b5-a7b0-a8e5df39ab2c"}