{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-10T19:49:32Z", "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": "2026-10-05T14:00:00Z", "ingestedAt": "2026-10-05T13:11:18+00:00", "fields": [ "agent_conduct", "ethics", "owners" ] }, "revisions": [ { "at": "2026-10-06T22:49:27+00:00", "engine": "codex", "fields": [ "definition" ], "answering_review": "d7d4dfb23515bb4fd6e8806a73e94b80132e23b9dcb454fd9039808a363d9d6b" }, { "at": "2026-10-07T11:31:37+00:00", "engine": "codex", "fields": [ "distinguishing_features" ], "answering_review": "4ccfb31ca733e0f30690c50c39eef150c423291966bf1505f0584943934e9673" } ], "gate": { "passed": true, "version": "1.0", "at": "2026-10-07T12:16:32+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q35473", "registryId": "vr.tr.window", "name": "window", "version": "0.2.0-wave.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.MAT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q35473/", "model": { "registry_id": "vr.tr.window", "name": "window", "purpose": "Let an agent treat a window as the part of a building envelope that is simultaneously an opening, a barrier and a route, and decide what may be done at it.", "definition": "An opening in a wall or roof that admits light or air and may provide a view, with or without glazing, and that may be fixed or openable.", "what_it_is_for": "Letting light and air in and keeping weather, noise and intruders out, while letting people see through.", "affordances": [ "look through it, which is its first purpose and its first privacy problem", "open and close it, where it opens at all", "break it, which is the usual way into a building", "clean, glaze and reglaze it", "block it - shutters, blinds, film - which changes every property it has" ], "distinguishing_features": [ "A window is an opening in a wall or roof that admits light or air, whether fixed or openable.", "A window may be glazed or unglazed, so glazing alone does not distinguish it from a vent or hatch.", "A window is part of a building rather than a piece of furniture, so it belongs to the building in law.", "Where a frame and glazing are present, their separate replacement and rating depend on the window design." ], "appearance": "A framed transparent panel set into a wall or roof, from a hand-sized pane to a full storey, with the frame material and the number of panes visible from outside.", "visual_identification": [ "Frame material and profile, which indicate age and thermal performance better than the glass does", "Number of panes, visible as multiple reflections at an angle, which separates single from double and triple glazing", "Opening style - fixed, casement, sash, tilt-turn - which decides what can be done at it", "Safety marks etched in a corner, which say whether the glass is toughened or laminated" ], "physical_properties": [ { "quantity": "thermal transmittance", "typical_range": "0.8-5.8", "unit": "W/m2K", "note": "the range from modern triple glazing to single glazing in a metal frame" }, { "quantity": "area", "typical_range": "0.3-6", "unit": "m2", "note": "" }, { "quantity": "sound reduction", "typical_range": "25-45", "unit": "dB", "note": "depends on the seal as much as the glass" } ], "families_and_kinds": [ "by opening: fixed, casement, sash, tilt-turn, pivot, roof light", "by glazing: single, double, triple, laminated, toughened, obscured", "by frame: timber, uPVC, aluminium, steel, composite" ], "related_models": [ { "relation": "is part of", "target": "building envelope", "why": "its performance is only meaningful as part of the envelope" }, { "relation": "is confused with", "target": "glazing", "why": "the glass is a component; the window is the assembly and the opening" }, { "relation": "is a route for", "target": "unauthorised entry", "why": "security models treat it as the weak point of a wall" }, { "relation": "regulated by", "target": "building code", "why": "escape, ventilation, safety glass and thermal performance are all mandated" } ], "identifiers": [ { "scheme": "position reference", "value_or_pattern": "building-specific", "note": "windows are identified by where they are, not by a number they carry" }, { "scheme": "glazing unit marking", "value_or_pattern": "etched in a corner", "note": "identifies the unit and its safety class" } ], "standards_and_regulation": [ "Building codes, which mandate escape openings, safety glazing near floors and doors, and ventilation", "Thermal performance requirements, which decide what may be installed in a replacement", "Fire regulations, which govern glazing in escape routes and near boundaries" ], "failure_modes_and_hazards": [ "Seal failure in double glazing, seen as misting between panes and unfixable without replacing the unit", "Rot and corrosion in the frame, which is where most windows actually fail", "Falls from open windows, which is why opening restrictors exist above ground level", "Injury from non-safety glass at low level", "Condensation and the mould that follows it, a ventilation failure that shows up at the window" ], "in_scope": [], "out_of_scope": [], "characteristics": [], "agent_conduct": { "may": [ "Open and close windows for ventilation and temperature when the occupant allows it.", "Report broken glass, failed seals and unsecured windows." ], "must_not": [ "Open a window where a child or a vulnerable person could fall.", "Leave windows open that leave a building unsecured when the occupants are away.", "Use a window to observe or record the people inside without consent." ], "requires_human": [ "Breaking a window to reach someone in an emergency." ] }, "ethics": { "considerations": [ "Windows are where privacy meets the street: looking in is intrusion.", "Falls from windows injure children; safety restrictors exist for a reason." ], "affected_parties": [ "Occupants", "Passers-by below the window" ] }, "owners": { "steward": "The owner of the building; occupants control everyday use.", "master_systems": [] } }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q35473: window", "url": "https://www.wikidata.org/wiki/Q35473", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Window", "url": "https://en.wikipedia.org/wiki/Window", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "opening-and-operation", "name": "Opening and operation", "description": "How it opens, how far, and what that permits.", "rationale": "What a window can do for ventilation, escape and security is decided by how it opens, not by its size.", "layers": [ { "id": "opening-type", "name": "Opening type and range", "description": "The mechanism and how far it travels.", "findings": [ { "id": "opening-type-finding", "name": "Opening geometry", "description": "How it opens and what clear opening that leaves.", "questions": [ { "text": "How does this window open, and what clear opening does it leave when fully open?", "kind": "measurement" }, { "text": "What restricts that opening, and who may remove the restriction?", "kind": "action" } ] } ] }, { "id": "operation-state", "name": "Operational state", "description": "Whether it currently opens, closes and locks.", "findings": [ { "id": "operation-state-finding", "name": "Current operability", "description": "The difference between designed and actual operation.", "questions": [ { "text": "Does this window currently open, close and lock as designed?", "kind": "measurement" }, { "text": "What must an agent do about a window that cannot be closed or cannot be opened?", "kind": "action" } ] } ] } ] }, { "id": "envelope-performance", "name": "Envelope performance", "description": "What it does to heat, sound and water.", "rationale": "A window is the weakest part of a wall for every performance the wall is meant to deliver, so its numbers dominate the room.", "layers": [ { "id": "thermal", "name": "Thermal performance", "description": "Transmittance, solar gain and where the losses are.", "findings": [ { "id": "thermal-finding", "name": "Thermal behaviour", "description": "How much heat it loses and gains, and through what.", "questions": [ { "text": "What is the thermal transmittance of this window, measured or inferred how?", "kind": "measurement" }, { "text": "Does the loss come through the glazing, the frame or the fit, and how would that be told apart?", "kind": "boundary" } ] } ] }, { "id": "weather-and-sound", "name": "Weather and sound", "description": "Water tightness, draughts and noise.", "findings": [ { "id": "weather-and-sound-finding", "name": "Sealing performance", "description": "Whether it keeps weather and noise out, and where it fails.", "questions": [ { "text": "How well does this window resist wind-driven rain and air leakage?", "kind": "measurement" }, { "text": "What does a failure here mean for the room behind it?", "kind": "action" } ] } ] } ] }, { "id": "safety-and-security", "name": "Safety and security", "description": "Injury, escape and forced entry.", "rationale": "The same opening that lets a person out in a fire lets a person in at night, and the rules for the two pull in opposite directions.", "layers": [ { "id": "glazing-safety", "name": "Glazing safety", "description": "Where safety glass is required and what it does.", "findings": [ { "id": "glazing-safety-finding", "name": "Glass type and its duty", "description": "Which glass is fitted and what the code required.", "questions": [ { "text": "What glass is fitted, and does its class meet what the position requires?", "kind": "definition" }, { "text": "What must be replaced rather than repaired when it fails?", "kind": "action" } ] } ] }, { "id": "escape-and-entry", "name": "Escape and entry", "description": "Escape provision and resistance to forced entry.", "findings": [ { "id": "escape-and-entry-finding", "name": "Escape and security duties", "description": "What this window must provide and resist.", "questions": [ { "text": "Is this window required to serve as an escape opening, and does it meet that requirement?", "kind": "boundary" }, { "text": "What resistance to forced entry does it offer, and what would improve it without blocking escape?", "kind": "action" } ] } ] } ] }, { "id": "maintenance-and-replacement", "name": "Maintenance and replacement", "description": "Keeping it working and changing it.", "rationale": "Windows fail slowly and are replaced under rules that did not exist when they were installed.", "layers": [ { "id": "condition", "name": "Condition", "description": "Frame, seals, glazing and ironmongery.", "findings": [ { "id": "condition-finding", "name": "Condition and its trajectory", "description": "What is failing and how fast.", "questions": [ { "text": "What condition are the frame, seals and ironmongery in?", "kind": "measurement" }, { "text": "Which defect makes the window unusable rather than merely worse?", "kind": "boundary" } ] } ] }, { "id": "replacement", "name": "Replacement constraints", "description": "What a replacement must meet, and what permission it needs.", "findings": [ { "id": "replacement-finding", "name": "Replacement rules", "description": "The standard a new window must reach and who must approve it.", "questions": [ { "text": "What must a replacement window meet in this building and jurisdiction?", "kind": "definition" }, { "text": "Whose consent is required where the building is listed or in a controlled area?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should the window, the opening and the glazing unit be one model or three, given that they are replaced on different cycles?", "How should escape-window requirements be represented when they depend on the room rather than the window?", "What evidence should an agent require before treating a window as suitable for escape or for a child-occupied room?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }