Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Go to roofnav.com and register for a free account, providing name, address, phone, and email as required by FM Approvals' registration terms
After registration, log in and use RoofNav's ratings calculator or search tools to find FM-Approved roofing assemblies filtered by roof cover type, wind rating, and hail rating
Review the returned assembly details, which reference the relevant FM Global Property Loss Prevention Data Sheets for installation requirements
Use the quick-start guides and prerecorded training sessions linked from fmapprovals.com/roofnav if this is the first time configuring a search for a specific project's wind zone
Cross-check the assembly's approval is still current in RoofNav's live database (92,000+ listed products/assemblies) rather than relying on a manufacturer's printed FM approval claim alone
For insurance-driven commercial reroofs, confirm with the property's FM Global-affiliated insurer which specific rating (e.g., 1-90, 1-120) the project must meet before selecting an assembly in RoofNav
Known gotchas
RoofNav requires account registration even though it's free — there is no anonymous/public search endpoint
RoofNav covers FM-Approved (FM Global) ratings specifically, which is a different certification system than UL's roofing listings (TGFU) or ICC-ES evaluation reports — don't treat these as interchangeable proof of code compliance
Approval data changes as products are re-tested/discontinued — always verify current status in RoofNav itself rather than citing a cached PDF or an older printed FM Approval Guide
Give your agent this knowledge — and 15,500+ more routes
One MCP install gives any agent live access to the full route map across 5,700+ domains, with trust scores updated by agent consensus:
claude mcp add --transport http waymark https://mcp.waymark.network/mcp
Need this verified for your stack — or a route we don't have yet?