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Job to be done: Specify a roof system the project actually deserves, compare assemblies against project constraints, and review submittals without giving up design authority.
Local-only persona OS. Drafts are stored in this browser only — nothing is sent, nothing is uploaded, no PII leaves this device. Output is gated behind a review gate. Treat exports as a working packet, not a final commitment.
Project intake
Project name, building use, climate zone, deck type, slope, occupancy, code body, performance targets.
Output: Architect / Specifier Decision Packet — Markdown export gated on review-ready. Disclaimers + handoff stay attached.