{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-11T06:00:55Z",
    "providers": [
      "Claude"
    ],
    "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify",
    "pass": 2,
    "wave": 1,
    "engine": "claude",
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-05T16:30:00Z",
      "ingestedAt": "2026-10-05T13:21:09+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-06T19:52:02+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q83180",
    "registryId": "vr.tr.roof",
    "name": "roof",
    "version": "0.2.0-wave.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.BLT"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q83180/",
  "model": {
    "registry_id": "vr.tr.roof",
    "name": "roof",
    "purpose": "Let an agent handle roofs by form, material, condition, safety of work at height and energy performance.",
    "definition": "The covering on the top of a building or structure that protects it from weather, with forms such as pitched, flat, domed and hyperbolic-paraboloid roofs, and materials such as tile, slate, metal or thatch.",
    "what_it_is_for": "Keeping weather out and supporting insulation, solar panels and drainage.",
    "affordances": [
      "inspect and repair it",
      "insulate it",
      "install solar panels, with checks",
      "work on it safely at height"
    ],
    "distinguishing_features": [
      "Top covering of a structure",
      "Form and material decide performance",
      "Work on roofs is work at height",
      "Key to energy efficiency"
    ],
    "appearance": "The top covering of a building: pitched with tiles or slates, flat with membranes, metal sheets, thatch or green roofs; shelters have simple roofs.",
    "visual_identification": [
      "Roof form and covering",
      "Gutters, flashings and chimneys",
      "Twisted spires and special forms"
    ],
    "physical_properties": [
      {
        "quantity": "pitch",
        "typical_range": "0-60",
        "unit": "degrees",
        "note": "flat roofs have small falls"
      },
      {
        "quantity": "design snow load",
        "typical_range": "0.5-5",
        "unit": "kN/m2",
        "note": "depends on location"
      }
    ],
    "families_and_kinds": [
      "pitched roofs",
      "flat roofs",
      "domes and shells",
      "green roofs",
      "thatched and traditional roofs",
      "shelter roofs"
    ],
    "related_models": [
      {
        "relation": "is part of",
        "target": "building and built structure",
        "why": "element"
      },
      {
        "relation": "carries",
        "target": "solar panels",
        "why": "uses"
      },
      {
        "relation": "is regulated by",
        "target": "building code",
        "why": "rules"
      },
      {
        "relation": "protects against",
        "target": "weather",
        "why": "function"
      }
    ],
    "identifiers": [],
    "standards_and_regulation": [
      "Building codes on roofs and loads",
      "Work at height regulations",
      "Fire classification for roof coverings (EN 13501-5)"
    ],
    "failure_modes_and_hazards": [
      "Falls during roof work",
      "Leaks and damp",
      "Storm damage",
      "Snow load collapse"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Inspect a roof by drone or sensor and report damage to the owner.",
        "Monitor snow load and drainage for the building manager."
      ],
      "must_not": [
        "Send people onto a roof without fall protection.",
        "Work on a roof in high winds or ice.",
        "Remove or disturb roofing that may contain asbestos without proper procedures.",
        "Overload a roof with equipment beyond its rating."
      ],
      "requires_human": [
        "Ordering roof repairs or replacement."
      ]
    },
    "ethics": {
      "considerations": [
        "Roof work causes many fatal falls.",
        "A failed roof exposes occupants to the weather and collapse."
      ],
      "affected_parties": [
        "Occupants",
        "Roofers and workers",
        "Passers-by below"
      ]
    },
    "owners": {
      "steward": "The building owner.",
      "master_systems": []
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q83180: roof",
      "url": "https://www.wikidata.org/wiki/Q83180",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Roof",
      "url": "https://en.wikipedia.org/wiki/Roof",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "form",
        "name": "Form",
        "description": "Shape and covering.",
        "rationale": "Form decides drainage and loads.",
        "layers": [
          {
            "id": "shape",
            "name": "Shape",
            "description": "Pitched, flat, dome.",
            "findings": [
              {
                "id": "shape-finding",
                "name": "Shape",
                "description": "Roof shape.",
                "questions": [
                  {
                    "text": "What is the roof form and pitch?",
                    "kind": "definition"
                  },
                  {
                    "text": "How does water drain?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "covering",
            "name": "Covering",
            "description": "Material.",
            "findings": [
              {
                "id": "covering-finding",
                "name": "Covering",
                "description": "Covering material.",
                "questions": [
                  {
                    "text": "What is it covered with?",
                    "kind": "definition"
                  },
                  {
                    "text": "How old is the covering?",
                    "kind": "measurement"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "condition",
        "name": "Condition",
        "description": "Leaks and damage.",
        "rationale": "Condition decides repairs.",
        "layers": [
          {
            "id": "inspection",
            "name": "Inspection",
            "description": "Survey.",
            "findings": [
              {
                "id": "inspection-finding",
                "name": "Inspection",
                "description": "Inspection results.",
                "questions": [
                  {
                    "text": "What defects were found?",
                    "kind": "measurement"
                  },
                  {
                    "text": "When was it inspected?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "repair",
            "name": "Repair",
            "description": "Fixes.",
            "findings": [
              {
                "id": "repair-finding",
                "name": "Repair",
                "description": "Repair needs.",
                "questions": [
                  {
                    "text": "What repairs are needed?",
                    "kind": "action"
                  },
                  {
                    "text": "Do they need permission?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "performance",
        "name": "Performance",
        "description": "Energy and loads.",
        "rationale": "Roofs affect energy and safety.",
        "layers": [
          {
            "id": "insulation",
            "name": "Insulation",
            "description": "Thermal.",
            "findings": [
              {
                "id": "insulation-finding",
                "name": "Insulation",
                "description": "Insulation level.",
                "questions": [
                  {
                    "text": "How well is the roof insulated?",
                    "kind": "measurement"
                  },
                  {
                    "text": "How can it be improved?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "loads",
            "name": "Loads",
            "description": "Snow, wind, panels.",
            "findings": [
              {
                "id": "loads-finding",
                "name": "Loads",
                "description": "Structural loads.",
                "questions": [
                  {
                    "text": "Can the roof take the added load of solar panels?",
                    "kind": "boundary"
                  },
                  {
                    "text": "What snow and wind loads apply?",
                    "kind": "measurement"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "safety",
        "name": "Safety",
        "description": "Work at height.",
        "rationale": "Roof work is dangerous.",
        "layers": [
          {
            "id": "work",
            "name": "Work at height",
            "description": "Protection.",
            "findings": [
              {
                "id": "work-finding",
                "name": "Work safety",
                "description": "Safety measures.",
                "questions": [
                  {
                    "text": "What fall protection is required for roof work?",
                    "kind": "boundary"
                  },
                  {
                    "text": "Should a professional do it?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "fragile",
            "name": "Fragile surfaces",
            "description": "Rooflights.",
            "findings": [
              {
                "id": "fragile-finding",
                "name": "Fragile",
                "description": "Fragile surfaces.",
                "questions": [
                  {
                    "text": "Are there fragile rooflights or sheets?",
                    "kind": "boundary"
                  },
                  {
                    "text": "Are they marked?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should roof types be separate entries?",
    "How should roof condition be recorded?",
    "The registry entry has merged aliases such as public transport shelter; should they be split off?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}