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"assemblyName": null, "representativeLayer": null, "elements": 1 }, { "key": "door__architectural_296219_occurrence", "group": "door", "sourceRole": "architectural", "status": "unsupported", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#296219", "materialNames": [], "relationRef": "ifc://DS3_TalTech_V4.ifc#616870", "basis": "occurrence", "assemblyName": null, "representativeLayer": null, "elements": 1 }, { "key": "door__architectural_310463_occurrence", "group": "door", "sourceRole": "architectural", "status": "unsupported", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#310463", "materialNames": [], "relationRef": "ifc://DS3_TalTech_V4.ifc#616872", "basis": "occurrence", "assemblyName": null, "representativeLayer": null, "elements": 1 }, { "key": "door__architectural_320228_occurrence", "group": "door", "sourceRole": "architectural", "status": "unsupported", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#320228", "materialNames": [], 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"group": "door", "sourceRole": "architectural", "status": "unsupported", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#352365", "materialNames": [], "relationRef": "ifc://DS3_TalTech_V4.ifc#616886", "basis": "occurrence", "assemblyName": null, "representativeLayer": null, "elements": 1 }, { "key": "door__architectural_353910_occurrence", "group": "door", "sourceRole": "architectural", "status": "unsupported", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#353910", "materialNames": [], "relationRef": "ifc://DS3_TalTech_V4.ifc#616888", "basis": "occurrence", "assemblyName": null, "representativeLayer": null, "elements": 1 }, { "key": "door__architectural_388385_occurrence", "group": "door", "sourceRole": "architectural", "status": "unsupported", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#388385", "materialNames": [], "relationRef": "ifc://DS3_TalTech_V4.ifc#616890", "basis": "occurrence", "assemblyName": null, "representativeLayer": null, "elements": 1 }, { "key": "door__architectural_394107_occurrence", "group": "door", "sourceRole": "architectural", "status": "unsupported", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#394107", "materialNames": [], "relationRef": "ifc://DS3_TalTech_V4.ifc#616891", "basis": "occurrence", "assemblyName": null, "representativeLayer": null, "elements": 1 }, { "key": "door__architectural_394272_occurrence", "group": "door", "sourceRole": "architectural", "status": "unsupported", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#394272", "materialNames": [], "relationRef": "ifc://DS3_TalTech_V4.ifc#616893", "basis": "occurrence", "assemblyName": null, "representativeLayer": null, "elements": 1 }, { "key": "door__architectural_399177_occurrence", "group": "door", "sourceRole": "architectural", "status": "unsupported", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#399177", "materialNames": [], "relationRef": "ifc://DS3_TalTech_V4.ifc#616899", "basis": "occurrence", "assemblyName": null, "representativeLayer": null, "elements": 1 }, { "key": "door__architectural_399463_occurrence", "group": "door", "sourceRole": "architectural", "status": "unsupported", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#399463", "materialNames": [], "relationRef": "ifc://DS3_TalTech_V4.ifc#616903", "basis": "occurrence", "assemblyName": null, "representativeLayer": null, "elements": 1 }, { "key": "door__architectural_400252_occurrence", "group": "door", "sourceRole": "architectural", "status": "unsupported", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#400252", "materialNames": [], "relationRef": "ifc://DS3_TalTech_V4.ifc#616905", "basis": "occurrence", "assemblyName": null, "representativeLayer": null, "elements": 1 }, { "key": "door__architectural_401118_occurrence", "group": "door", "sourceRole": "architectural", "status": "unsupported", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#401118", "materialNames": [], "relationRef": "ifc://DS3_TalTech_V4.ifc#616909", "basis": "occurrence", "assemblyName": null, "representativeLayer": null, "elements": 1 }, { "key": "door__architectural_401579_occurrence", "group": "door", "sourceRole": "architectural", "status": "unsupported", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#401579", "materialNames": [], "relationRef": "ifc://DS3_TalTech_V4.ifc#616911", "basis": "occurrence", "assemblyName": null, "representativeLayer": null, "elements": 1 }, { "key": "door__architectural_401627_occurrence", "group": "door", "sourceRole": "architectural", "status": "unsupported", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#401627", "materialNames": [], "relationRef": "ifc://DS3_TalTech_V4.ifc#616913", "basis": "occurrence", "assemblyName": null, "representativeLayer": null, "elements": 1 }, { "key": "door__architectural_287791_occurrence", "group": "door", "sourceRole": "architectural", "status": "single_material", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#287791", "materialNames": [ "Metal Deck" ], "relationRef": "ifc://DS3_TalTech_V4.ifc#617103", "basis": "occurrence", "assemblyName": null, "representativeLayer": null, "elements": 1 }, { "key": "door__architectural_589214_occurrence", "group": "door", "sourceRole": "architectural", "status": "unsupported", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#589214", "materialNames": [], "relationRef": "ifc://DS3_TalTech_V4.ifc#617005", "basis": "occurrence", "assemblyName": null, "representativeLayer": null, "elements": 1 }, { "key": "door__architectural_590820_occurrence", "group": "door", "sourceRole": "architectural", "status": "unsupported", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#590820", "materialNames": [], "relationRef": "ifc://DS3_TalTech_V4.ifc#617007", "basis": "occurrence", "assemblyName": null, "representativeLayer": null, "elements": 1 }, { "key": "door__architectural_596551_occurrence", "group": "door", "sourceRole": "architectural", "status": "unsupported", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#596551", "materialNames": [], "relationRef": "ifc://DS3_TalTech_V4.ifc#617013", "basis": "occurrence", "assemblyName": null, "representativeLayer": null, "elements": 1 }, { "key": "door__architectural_607607_occurrence", "group": "door", "sourceRole": "architectural", "status": "unsupported", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#607607", "materialNames": [], "relationRef": "ifc://DS3_TalTech_V4.ifc#617030", "basis": "occurrence", "assemblyName": null, "representativeLayer": null, "elements": 1 }, { "key": "mullion__architectural_287796_type", "group": "mullion", "sourceRole": "architectural", "status": "unsupported", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#287796", "materialNames": [], "relationRef": "ifc://DS3_TalTech_V4.ifc#617104", "basis": "type", "assemblyName": null, "representativeLayer": null, "elements": 53 }, { "key": "mullion__architectural_310571_type", "group": "mullion", "sourceRole": "architectural", "status": "unsupported", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#310571", "materialNames": [], "relationRef": "ifc://DS3_TalTech_V4.ifc#617112", "basis": "type", "assemblyName": null, "representativeLayer": null, "elements": 17 }, { "key": "mullion__architectural_352487_type", "group": "mullion", "sourceRole": "architectural", "status": "unsupported", "assemblyRef": null, "materialRef": "ifc://DS3_TalTech_V4.ifc#352487", "materialNames": [], "relationRef": "ifc://DS3_TalTech_V4.ifc#617139", "basis": "type", "assemblyName": null, "representativeLayer": null, "elements": 22 } ], "appearanceBasis": "IFC occurrence or type material association. For a layer set, the thickest stated layer is used as an illustrative representative, not as the verified exterior finish. Source layer order does not establish installation direction. Unreviewed material names remain neutral. Glazing retains its base role appearance." }, "mepCoverage": { "schemaVersion": 1, "status": "source_geometry_published", "publishedLayerIds": [ "mep" ], "typedElementCount": 528, "distributionPortCount": 1644, "sources": [ { "role": "architectural", "fileName": "DS3_TalTech_V4.ifc", "sha256": "05919eee0701b955d3d08501c4889c879d9c486e2389a6a1a5cdaad32a5d10ba", "schema": "IFC4", "typedElementCount": 528, "entitiesByType": { "IfcChiller": 2, "IfcTank": 1, "IfcAirTerminal": 82, "IfcPipeSegment": 174, "IfcPipeFitting": 171, "IfcUnitaryEquipment": 2, "IfcBoiler": 2, "IfcSpaceHeater": 44, "IfcAirToAirHeatRecovery": 1, "IfcSolarDevice": 48, "IfcLightFixture": 1 }, "distributionPorts": 1644, "systems": 6 } ], "summary": { "ko": "통합 IFC의 냉난방·배관·말단기기와 기존 태양광 형상을 표시합니다. 별도 계측 파일을 연간 에너지 계산과 보정한 결과는 아닙니다.", "en": "Shows source heating/cooling equipment, pipes, terminals and existing PV from the combined IFC. The separate metering archive has not been used to calibrate the modeled annual energy output." }, "limitations": [ { "ko": "해시로 고정된 IFC 파일에서 해당 스키마의 설비 분류 상속을 확인한 요소 목록이며, 실제 설치 설비의 완전성 조사가 아닙니다.", "en": "Inventory of distribution occurrence classes using each pinned IFC file's schema inheritance, not a completeness survey of installed services." }, { "ko": "분야별·수정본 모델 간 요소가 중복될 수 있으며 파일 간 설비 중복 제거는 하지 않았습니다.", "en": "Counts include overlapping discipline and revision models; there is no cross-file equipment deduplication." }, { "ko": "일반 IfcBuildingElementProxy·IfcFurnishingElement는 원본 근거 없이 MEP로 분류하지 않습니다.", "en": "Generic IfcBuildingElementProxy and IfcFurnishingElement occurrences are not classified as MEP without source evidence." } ] }, "serviceLayers": [ { "id": "mep", "ko": "설비 · 기존 태양광", "en": "MEP · existing PV", "file": "mep.glb", "byteLength": 1822576, "triangleCount": 26776, "groups": [ "terminal", "plant", "fitting", "pipe", "solar", "terminal-instanced", "fitting-instanced", "solar-instanced" ], "elements": 528, "distinctGeometries": 400, "instancedShapes": 67, "instancedPlacements": 382, "drawCalls": 72, "note": "Actual IFC4 equipment geometry from the combined source file, including its existing photovoltaic arrays. Colours distinguish visual categories; equipment capacity and modeled energy assumptions are documented separately. This is not an inferred whole-building MEP network.", "flow": { "file": null, "ports": 1644, "connections": 346, "directedEdges": 1, "drawnEdges": 0, "bidirectionalEdges": 345, "unresolvedConnections": 0, "ungeometried": 0, "unreachedEdges": 0, "plantNodes": 0, "supplySegments": 0, "returnSegments": 0, "reason": "Source port directions do not establish supply/return system roles in this combined model; animation is not published.", "wavelengthM": 26 } } ], "scope": "Source geometry and occurrence inventory only. Geometry does not establish installed thermal performance, system connectivity or operating efficiency; energy inputs are recorded separately." }, "measuredEnvelope": { "basis": "Measurements of model geometry and quantities; not on-site measurements.", "floorArea": { "value": 3486.12, "unit": "m2", "status": "measured_from_model", "sourceField": "areas.totalFloorAreaSqm", "scope": "Extracted model elements; completeness and physical as-built accuracy are not certified." }, "opaqueWallNetArea": { "value": 1939.94, "unit": "m2", "status": "measured_from_model", "sourceField": "areas.exteriorWallNetSqm", "scope": "Extracted model elements; completeness and physical as-built accuracy are not certified." }, "glazingApertureArea": { "value": 548.52, "unit": "m2", "status": "measured_from_model", "sourceField": "areas.glazingApertureSqm", "scope": "Counted openings selected by the extractor's host-wall and envelope rules; excluded and unresolved openings are not in this sum.", "coverage": "partial_scope_requires_review" }, "exteriorDoorArea": { "value": 58.34, "unit": "m2", "status": "measured_from_model", "sourceField": "areas.exteriorDoorSqm", "scope": "Counted exterior door leaves selected by the extractor; not every IfcDoor or IsExternal flag.", "coverage": "partial_scope_requires_review" }, "roofElementSurfaceSum": { "value": 1581.14, "unit": "m2", "status": "measured_from_model", "sourceField": "areas.roofSurfaceSqm", "scope": "Sum of each roof element's one-sheet surface; different roof layers/elements may overlap. Not the selected outer-envelope roof area used by the energy model." }, "roofFamilyProjectedSum": { "value": 1539.02, "unit": "m2", "status": "measured_from_model", "sourceField": "areas.roofProjectedSqm", "scope": "Sum of plan unions by roof family; different families may overlap. Not a single union across the building." }, "roofPlanUnion": { "value": 1361.56, "unit": "m2", "status": "measured_from_model", "sourceField": "areas.roofUnionSqm", "scope": "One plan union across all counted roof elements, irrespective of family." }, "groundContactArea": { "value": 1173.44, "unit": "m2", "status": "measured_from_model", "sourceField": "areas.groundSlabSqm", "scope": "Extracted model elements; completeness and physical as-built accuracy are not certified." }, "groundExposedPerimeter": { "value": 524.97, "unit": "m", "status": "measured_from_model", "sourceField": "areas.groundPerimeterM", "scope": "Outer ring length of the selected slab union. Slab gaps/fragmentation can increase it; this is not independently verified thermal exposure. Read the ground-coupling assumption." }, "conditionedGrossVolume": { "value": 17503.65, "unit": "m3", "status": "measured_from_model", "sourceField": "areas.conditionedVolumeGrossM3", "scope": "Extracted model elements; completeness and physical as-built accuracy are not certified." }, "netRoomVolume": { "value": 15841.48, "unit": "m3", "status": "measured_from_model", "sourceField": "areas.roomVolumeNetM3", "scope": "Extracted model elements; completeness and physical as-built accuracy are not certified." }, "wallByOrientationSqm": { "N": 616.86, "NE": 0, "E": 467.15, "SE": 0, "S": 421.73, "SW": 0, "W": 434.21, "NW": 0 }, "glazingByOrientationSqm": { "N": 88.69, "NE": 0, "E": 79.41, "SE": 0, "S": 71.57, "SW": 0, "W": 308.85, "NW": 0 }, "doorsByOrientationSqm": { "N": 6.4, "NE": 0, "E": 41.36, "SE": 0, "S": 3.89, "SW": 0, "W": 6.7, "NW": 0 }, "orientation": { "trueNorthDeg": null, "northAssumed": true, "weakOutwardCount": 6, "offCardinalCount": 0, "offCardinalSqm": 0, "wallCount": 40, "note": "Azimuths are clockwise from north, where north is the model's -Z after web-ifc's Z-up to Y-up conversion. Outward face inferred by comparing each face's centroid with the building centre, which is correct for a convex plan and can be wrong at a re-entrant corner." }, "openingRecordsUrl": "/reference-buildings/taltech-maemaja/openings.json", "extractionNotes": { "floor": null, "openings": "Glazing aperture 548.52 m² = 72 IfcWindow at OverallWidth × OverallHeight (518.29 m²) + 5 exterior IfcCurtainWall at the projected outline of their plates and mullions (30.23 m²; the glass plates alone give 0 m², the bounding rectangles 45.74 m²). Exterior doors are separate — a door is aperture, not glazing: 10 IfcDoor, 58.34 m², OverallWidth × OverallHeight. Host wall by IfcRelFillsElement → IfcOpeningElement → IfcRelVoidsElement (55 openings); a curtain wall is its own wall segment (5); 27 door(s) inside a curtain wall. Sector is the host wall's, from the same orientation pass as the wall split. Envelope by a both-sides probe against the conditioned IfcSpace solids (115 of 115 have geometry): 20 curtain wall(s) with a room on both sides excluded as interior screens (50.5 m²); 109 openings hosted in walls outside the exterior set; 0 window(s) (0 m²) and 3 door(s) (14.15 m²) sit in the plane of walls outside the exterior-wall set and are not counted — the wall names are on each row; 6 unresolved (3.43 m² where a size is stated). IsExternal is reported per row and never used as a filter — it means \"not an interior partition\" to an authoring tool, never \"bounds conditioned space against outdoor air\". It marks 16 door(s) here; 10 confirm against an exterior wall, 6 do not: #310460 SU-A04:2346868 4.4 m², #310477 SU-A04:3189385 4.06 m², #310527 SU-A04:2347869 4.06 m², #352362 Uks:2-paneeli:2893700 4.52 m², #502255 Uks_1:1-paneel:4487293 4.93 m², #325145 Uks-Vent. rest:Rest_3:2473430 3.43 m². Rows in openings.json.", "roof": "Plan shadow per element (union of its projected triangles, ifc-plan-shadow.mjs): 20 elements — 11 IfcRoof, 9 IfcCovering.PredefinedType=ROOFING. roofProjectedSqm sums 14 roof type(s), each as the union of its elements; the elements themselves sum to 1539.02 m² (elements of one type overlapping in plan) and all types together cover 1361.56 m² (one type above another). surfaceSqm is each element's true one-sheet surface (Σ area of its upward faces; ÷ 2 where a surface model has no downward face and both sheets are wound upward; ÷ the coverage where its parts cover its shadow more than once, as stacked layer solids do — surfaceBasis says which), summing to 1581.14 m²; a flat deck's surface equals its shadow, a pitched roof's exceeds it. 7 element(s) present their top face more than once (upward-face sum above shadow) — the reason the shadow is used and Σ area×n_y is not. Roof element geometry is measured from the IFC. Source photovoltaic equipment is inventoried separately and must be excluded from new PV installation footprints.", "ground": "IfcSlab (not ROOF or LANDING) on storeys at or below +Kelder (-3.5 m): 52 candidate(s). A slab counts as ground envelope when a conditioned space stands on it — its shadow overlaps a conditioned ground-storey space footprint (44 of 44 such spaces have one: 44 solid) or an IfcRelSpaceBoundary names it as bounding one. IsExternal is not consulted. 45 counted, 7 excluded: \"Floor:trepp telg x aluspõrand:706309\" 21.13 m², \"Floor:trepp telg x aluspõrand:706541\" 1.25 m², \"Floor:trepp telg x aluspõrand:706698\" 1.58 m², \"Floor:trepp telg x aluspõrand:706763\" 0.92 m², \"Floor:trepp telg x aluspõrand:706812\" 1.25 m², \"Floor:trepp telg x aluspõrand:706851\" 1.26 m², \"Floor:trepp telg x aluspõrand:706861\" 0.28 m². groundSlabSqm is the union of the counted shadows (they sum to 1173.45 m²; stacked build-up layers count once); groundPerimeterM is the outline's outer rings (7 polygons); 4 hole ring(s) totalling 44.99 m are reported and not added.", "volume": "Gross from 115 spaces (floor area × storey height; voids, and rooms taller than their storey with no void above, as their own solids); net from 115 spaces (115 from stated volume quantity). A closed tessellation's signed volume is exact." }, "opaqueFacadeScope": null }, "modelInputs": { "provenance": "mixed_model_measurements_and_named_assumptions", "measurementState": "awaiting_measurement", "scopeNotice": { "ko": "실제 Tallinn 업무·연구시설의 IFC입니다. 형상과 원본 U값은 출처가 있지만 개구부 범위는 검토 중입니다. 서울 기후·운영 가정으로 계산하며 별도 계측 자료로 보정하지 않았습니다. 누락된 외부 개구부나 연구실 부하로 사용량이 낮게 나올 수 있습니다.", "en": "IFC of a real Tallinn office/laboratory. Geometry and typed source U-values are traceable; opening coverage remains under review. Energy uses assumed Seoul climate and operation, without calibration to the separate measurement archive. Omitted exterior openings and laboratory loads may make demand look too low." }, "pendingMeasurements": [ { "manifestField": "areas.glazingApertureSqm", "constant": "TALTECH_MEASURED_ENVELOPE.glazingApertureSqm", "placeholderValue": 548.52, "unit": "m2", "derivedFrom": "Retained measured opening subset, pending completeness reconciliation; not an arbitrary area default.", "biasDirection": "May understate glazing where omitted openings are exterior; classification uncertainty prevents a one-direction prediction.", "envelopeBias": "unknown" }, { "manifestField": "areas.exteriorDoorSqm", "constant": "TALTECH_MEASURED_ENVELOPE.exteriorDoorSqm", "placeholderValue": 58.34, "unit": "m2", "derivedFrom": "Retained 10 counted door apertures, pending excluded-door reconciliation.", "biasDirection": "May understate aperture where unresolved doors are exterior; classification uncertainty prevents a one-direction prediction.", "envelopeBias": "unknown" } ], "pendingMeasurementReconciliation": [ { "manifestField": "areas.glazingApertureSqm", "currentExtractedValue": 548.52, "placeholderValueUsedByModel": 548.52, "status": "extracted_value_available_requires_scope_review", "note": "An extracted figure is not automatically a complete envelope measurement. Resolve extraction exclusions and scope before replacing the model input." }, { "manifestField": "areas.exteriorDoorSqm", "currentExtractedValue": 58.34, "placeholderValueUsedByModel": 58.34, "status": "extracted_value_available_requires_scope_review", "note": "An extracted figure is not automatically a complete envelope measurement. Resolve extraction exclusions and scope before replacing the model input." } ], "recipe": { "facade": { "windowWidth": 1.6, "windowHeight": 2.16, "sillHeight": 0.4, "windowSpacing": 2.4, "windowRatio": 0.7, "mullionDepth": 0.048, "mullionWidth": 0.03, "glassInset": 0.03, "solidPanelChance": 0.03, "parapetHeight": 0.9, "cornerInset": 0.03 }, "slab": { "thickness": 0.2, "overhang": 0 }, "column": { "spacing": 6, "size": 0.4, "inset": 0 }, "roof": { "type": "flat", "flatThickness": 0.3, "gableHeight": 3, "hipInset": 0.4 }, "materials": { "wall": { "color": "#C0C8D0", "roughness": 0.19999999999999998, "metalness": 0.6, "visualId": "concrete-architectural" }, "glass": { "color": "#88BBDD", "roughness": 0.1, "metalness": 0.3, "transparent": true, "opacity": 0.4, "emissive": "#334455", "emissiveIntensity": 0.15, "visualId": "glass-low-e" }, "mullion": { "color": "#808890", "roughness": 0.4, "metalness": 0.6, "visualId": "metal-aluminum" }, "slab": { "color": "#A05030", "roughness": 0.8, "metalness": 0.1, "visualId": "concrete-polished" }, "column": { "color": "#A05030", "roughness": 0.8, "metalness": 0.1, "visualId": "concrete-precast" }, "roof": { "color": "#808080", "roughness": 0.8, "metalness": 0.1, "visualId": "roof-membrane" }, "groundFloor": { "color": "#A0A098", "roughness": 0.8, "metalness": 0.05, "visualId": "concrete-architectural" } }, "curtainWall": { "enabled": true, "mullionWidth": 0.03, "glassTint": "#88BBCC", "glassOpacity": 0.45 }, "buildingName": "TalTech Mäemaja", "address": "Tallinn, Estonia (source publication)", "mainPurpsCd": "14000", "strctCd": "21", "era": "2010-2019", "floors": [ { "floorNo": -1, "label": "B1 · +Kelder", "type": "below", "y": -3.5, "height": 3.5, "isGroundFloor": false, "useCode": "14000" }, { "floorNo": 1, "label": "1. korrus", "type": "above", "y": 0, "height": 4.9, "isGroundFloor": true, "useCode": "14000" }, { "floorNo": 2, "label": "2. korrus", "type": "above", "y": 4.9, "height": 4.9, "isGroundFloor": false, "useCode": "14000" }, { "floorNo": 3, "label": "3. korrus", "type": "above", "y": 9.8, "height": 4.71, "isGroundFloor": false, "useCode": "14000" } ], "totalHeight": 14.51, "wallThickness": 0.4, "footprintWidth": 34.25551050561063, "footprintDepth": 34.25551050561063, "siteWidth": 34.25551050561063, "siteDepth": 34.25551050561063, "officialFloorAreaSqm": 3486.12, "measuredEnvelope": { "planAreaSqm": 1173.44, "wallLengthM": 524.97, "grossWallAreaSqm": 2546.8, "roofAreaSqm": 1369.11, "volumeM3": 17503.65, "derivedFloorAreaSqm": 3486.12, "basis": "IFC: 115 stated space areas and net volumes; 40 physical/external-boundary walls, using NetSideArea or Dimensions.Area; 548.52 m² counted glazing and 58.34 m² counted doors with unresolved opening coverage; 1,173.44 m² selected basement slab union; 1,369.11 m² sky-visible roof surface after overlap removal and the source-cited KL-04 winding correction. All rooms are assumed conditioned. The model is not calibrated to the separately published meter archive." } }, "materials": { "source": "ifc-model", "confidence": "estimated", "codeYear": 2015, "envelope": { "walls": [ { "orientation": "N", "surfaceArea": 616.86, "uValue": 0.13265597822693379, "rValue": 7.53829577351807, "thermalBridge": 0, "layers": [] }, { "orientation": "E", "surfaceArea": 467.15, "uValue": 0.13265597822693379, "rValue": 7.53829577351807, "thermalBridge": 0, "layers": [] }, { "orientation": "S", "surfaceArea": 421.73, "uValue": 0.13265597822693379, "rValue": 7.53829577351807, "thermalBridge": 0, "layers": [] }, { "orientation": "W", "surfaceArea": 434.21, "uValue": 0.13265597822693379, "rValue": 7.53829577351807, "thermalBridge": 0, "layers": [] } ], "roof": { "uValue": 0.1007866816054291, "layers": [], "solarReflectance": 0.3, "emissivity": 0.9, "greenRoofCoverage": 0 }, "groundFloor": { "uValue": 0.13409429178975033, "layers": [], "groundContactResistance": 0 }, "windows": { "uValue": 0.7007883045072277, "shgc": 0.45, "vlt": 0.6, "glassType": "triple", "coating": "low-e", "gasFill": "argon", "frameMaterial": "thermal-break-aluminum", "airLeakageRate": 2, "shadingCoefficient": 0.5172413793103449, "windowToWallRatio": { "N": 0.21537615831631848, "E": 0.21537615831631848, "S": 0.21537615831631848, "W": 0.21537615831631848 } }, "foundation": { "perimeterInsulationUValue": 0, "groundTemperature": 13.5, "moistureBarrier": "none" }, "airtightness": { "ach50": 3, "equivalentLeakageArea": 0, "testMethod": "estimated" } }, "hvac": { "heating": { "systemType": "district", "fuelType": "district-heat", "efficiency": 1, "capacity": 0 }, "cooling": { "systemType": "central-chiller", "efficiency": 4.03, "capacity": 0 }, "ventilation": { "type": "heat-recovery", "heatRecoveryEfficiency": 0.82, "airflowRate": 0.7 }, "dhw": { "systemType": "gas-boiler", "efficiency": 0.85, "storageVolume": 0 } }, "lighting": { "lightingPowerDensity": 10, "lampType": "led", "controlType": "daylight-dimming" }, "renewable": { "solarPV": { "installed": true, "capacity": 63.36, "panelType": "monocrystalline", "tiltAngle": 15, "orientation": 180, "area": 0 }, "solarThermal": { "installed": false, "collectorArea": 0, "efficiency": 0 }, "geothermal": { "installed": false, "systemType": "closed-loop", "cop": 0 } }, "occupancy": { "occupancyDensity": 0.1, "internalHeatGain": 15, "hotWaterDemand": 10, "weekdaySchedule": [ 0, 0, 0, 0, 0, 0, 0.1, 0.3, 0.9, 1, 1, 1, 0.8, 1, 1, 1, 1, 0.9, 0.5, 0.2, 0.1, 0, 0, 0 ], "weekendSchedule": [ 0, 0, 0, 0, 0, 0, 0, 0, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0, 0, 0, 0, 0, 0, 0 ] } }, "metadataScope": "Legacy source/confidence fields describe the adapter as a whole. They do not mean that every thermal, system, occupancy or geometry input is measured. Read the assumption and pending-measurement records.", "engineEnvelope": { "source": "measured", "planAreaSqm": 1173.44, "wallLengthM": 524.97, "grossWallAreaSqm": 2546.8, "roofAreaSqm": 1369.11, "volumeM3": 17503.65, "derivedFloorAreaSqm": 3486.12, "intensityFloorAreaSqm": 3486.12 }, "engineEnvelopeProvenance": "includes_placeholders_see_pendingMeasurements", "energyInputRoofCategory": { "type": "flat", "read": "KL-02 609.36 m² at 1.64° + KL-03 141.19 m² at 0.75° + remaining 35 patches (group mean) 618.56 m² at 8.19° → area-weighted 4.51° over the 1,369.11 m² priced. Areas are sky-visible source surfaces. Source array, rooftop chiller and parapet plan envelopes are excluded from proposed PV placement; full solar shading is not modeled." }, "exteriorDoorAreaSqm": 58.34 }, "assumptions": [ { "id": "A-CLIMATE", "assumes": "Seoul comparison climate, not Tallinn weather.", "why": "The source identifies a real Tallinn site. The engine currently has Korean regional climates only; these outputs cannot be presented as observed Estonian demand." }, { "id": "A-ERA-USE", "assumes": "2010–2019 cosmetic/default era, 2015 code year, Korean office use 14000 and concrete-family structure 21.", "why": "The publication calls this an office/laboratory. The IFC export date is not a verified construction year; these Korean codes and era are mappings." }, { "id": "A-CONDITIONED-SPACES", "assumes": "All 115 spaces are conditioned, including 44 basement spaces (1,160.67 m²).", "why": "Room quantities do not establish operating schedules or conditioned status. Including unconditioned rooms would understate energy intensity. Gross volume uses floor area × floor-to-floor height; all 115 net volumes are stated quantities, even where tessellation is not closed." }, { "id": "A-STATED-U-PRIMARY", "assumes": "Typed standard Pset ThermalTransmittance is the primary thermal statement; weighted wall U 0.132656 and roof U 0.100787 W/m²K, no extra thermal bridges.", "why": "The source unit is W/m²K. Some alternate Data.Soojusläbivus text values disagree; source-physics.json retains both. Stated design properties are not field-tested performance. Walls use a whole-building mean on each sector because the engine averages four wall U-values." }, { "id": "A-OPENING-COVERAGE", "assumes": "The counted opening subset supplies the current baseline: 548.52 m² glazing and 58.34 m² doors.", "why": "Host/space classification excludes other openings and six remain unresolved. 90 of 115 space meshes fail the closed-mesh test, limiting both-sides probes. Unmeasured exterior apertures could increase heat loss; the output can look too efficient. No complete opening survey is claimed." }, { "id": "A-DOORS", "assumes": "The engine prices 58.34 m² of doors at the wall U-value, while their source U is 1 W/m²K.", "why": "There is no separate door heat-loss element. This understates door heat loss; door area is excluded from wall-insulation sizing." }, { "id": "A-CURTAIN-U", "assumes": "30.234 m² curtain-wall aperture U = 1.4 W/m²K; other 518.285 m² window aperture uses stated Uw = 0.66. The weighted combined U is used by the engine.", "why": "The included curtain walls have no typed thermal property. Their U is a named stand-in, not copied from a neighboring window." }, { "id": "A-WINDOW-OPTICS", "assumes": "SHGC 0.45, VLT 0.60, low-e triple/argon glazing, thermally broken aluminium frame, air leakage 2 and shading coefficient 0.45/0.87.", "why": "These descriptive and optical fields are assumptions; a stated Uw does not establish construction, solar transmission or airtightness. The whole-building glazing/gross ratio is repeated on each sector to conserve total aperture in the shared engine." }, { "id": "A-GROUND-BASEMENT", "assumes": "Slab-on-ground approximation for the basement, with source air-to-air U converted to construction R by removing 0.17 + 0.04 m²K/W surface resistances; generic soil λ 2 W/mK and 0.4 m edge-wall thickness.", "why": "The engine lacks a basement-specific model. Source U 0.160361 is not directly a soil-facing U. The 524.97 m union boundary includes slab fragmentation/gaps and is used as an exposed-perimeter surrogate, potentially overstating ground loss. Basement walls are also priced against outdoor air. Soil, ground temperature 13.5°C and moisture/perimeter insulation fields are assumptions." }, { "id": "A-ROOF-STACK", "assumes": "One sky-visible surface per roof location: 1,369.11 m², not the raw 1,581.14 m² element/layer sum; reflectance 0.3, emissivity 0.9.", "why": "Stacked roof layers would double-count heat-transfer area. The selected surface rows are weighted by their source typed U. KL-04's source winding is reversed for top-surface selection using recorded source ray evidence. Upstands and hidden faces are not independently resolved thermal zones." }, { "id": "A-HVAC", "assumes": "Map source District Heating_Radiators to district heat and interpret Data.efficiency text 1 as efficiency; use the chiller's Other.efficiency text 4.03 as representative COP and heat_recovery_efficiency text 0.82 as recovery. Ventilation 0.7 ACH remains assumed; capacities unavailable.", "why": "Source properties #463229, #433198 and #497566 are retained in source-physics.json. These are author-stated text values interpreted as operating ratios, not measured seasonal performance; the chiller value is not established for every plant occurrence. Korean district-heat emissions factors and Seoul weather are comparison assumptions. Outputs are not calibrated to the separately published measurements." }, { "id": "A-DHW-MAPPING", "assumes": "Gas-boiler DHW at efficiency 0.85 is a legacy comparison stand-in.", "why": "The source explicitly names District Heating DHW and states text efficiency 1 (#498112). The shared DHW input type has no district-heat option; it cannot represent that system faithfully. The source statement is retained separately, and the stand-in must not be read as installed gas equipment." }, { "id": "A-OPERATION", "assumes": "10 W/m² LED with daylight dimming; 0.1 persons/m², 15 W/m² gains, 10 L/person/day DHW, weekday office schedule; airtightness 3 ACH50 (engine divides by 20).", "why": "One office schedule is applied to office and laboratory space. Lighting controls, occupancy and blower-door performance have not been established; unmodeled laboratory processes may increase electricity demand." }, { "id": "A-EXISTING-PV", "assumes": "Baseline PV capacity uses the sum of Other.RatedElectricPowerOutput: 63.36 kW over 48 modeled arrays / 192 stated modules. All nine array types state Other.Inclination 15° in source degree units. Monocrystalline technology and representative south-facing orientation are assumed; face area is unavailable.", "why": "The separate Data.Total Power Watt Peak field repeats 430.06 W on every occurrence and conflicts with per-array ratings; it is retained but not used. Type inclination is a source design parameter, not a measured world-face angle. Roof exclusions use source-derived conservative array shadow envelopes, regardless of the representative yield orientation. No measured PV yield is claimed, and the grade conversion currently ignores baseline PV." }, { "id": "A-NORTH-FOOTPRINT", "assumes": "Project north; square fallback recipe footprint of area 1,173.44 m²; no baseline solar thermal or geothermal.", "why": "The rendered IFC geometry supplies the actual shape. No surveyed orientation or complete renewable installation inventory has been established; the fallback square is not measured geometry. Proposed PV winter row spacing uses accepted source site latitude 59.3949928283°, independently of the assumed Seoul energy weather." } ], "modeledEnergy": { "status": "modeled_not_metered", "method": { "id": "bimfit-annual-degree-day-screening", "codePath": "src/lib/energy/annual-demand.ts", "scope": "Heating and cooling delivered energy after system efficiencies; auxiliary loads estimated separately." }, "climate": { "sigunguCd": "11", "labelKo": "서울 비교 기후 (가정)", "labelEn": "Seoul comparison climate (assumed)", "assumptionId": "A-CLIMATE", "status": "assumed", "hddBase18KDay": 2700, "cddBase24KDay": 220, "winterDesignTemperatureC": -11.3, "summerDesignTemperatureC": 33.6, "indoorHeatingSetpointC": 20, "indoorCoolingSetpointC": 26, "coolingSeasonSolarKWhPerM2": 350 }, "hvac": { "heatingDeliveredKWhPerYear": 161944.4973740091, "coolingDeliveredKWhPerYear": 18189.77340086194, "totalDeliveredKWhPerYear": 180134.27077487105, "deliveredKWhPerM2Year": 51.67185030201802, "fuelDemandKWhPerYear": { "electricKwh": 18189.77340086194, "fossilKwh": 161944.4973740091, "fossilFuel": "districtHeating" } }, "comparisonRating": { "grade": "1++", "table": "non-residential", "tableSelection": "adapted_use_code", "officialCertificate": false, "primaryKWhPerM2Year": 92.44689811126712, "deliveredFuelInputsKWhPerYear": { "electric": 45209.9140170926, "gas": 179957.92445149622, "districtHeating": 0, "districtCooling": 0, "renewable": 0 }, "primaryEnergyKWhPerYear": { "electric": 124327.26354700464, "gas": 197953.71689664587, "districtHeating": 0, "districtCooling": 0, "renewable": 0, "total": 322280.9804436505 }, "conversionFactorsPrimaryPerDeliveredKWh": { "electricity": 2.75, "gas": 1.1, "districtHeating": 0.728, "districtCooling": 0.937, "renewable": 2.75 }, "limitationIds": [ "L-GRADE-SHARES", "L-SCREENING" ] }, "estimatedWholeBuilding": { "hvacKWhPerYear": 180134.27077487105, "lightingKWhPerYear": 81879.21398857774, "dhwKWhPerYear": 32751.6855954311, "plugLoadsKWhPerYear": 32751.6855954311, "totalKWhPerYear": 327516.855954311, "ratioProvenance": { "source": "use_code", "useCodePrefix": "14" }, "limitationIds": [ "L-SITE-TOTAL" ] }, "hvacEmissions": { "totalTonnesCO2PerYear": 60.17862106003889, "kgCO2PerM2Year": 17.26234927657077, "electricTonnesCO2PerYear": 8.356381900355975, "nonElectricTonnesCO2PerYear": 51.822239159682915 }, "designHeatLoss": { "totalW": 77082.12218199458, "elements": [ { "name": "Walls", "quantity": 1998.2800000000002, "quantityUnit": "m2", "coefficient": 0.13265597822693379, "coefficientUnit": "W/(m2.K)", "heatLossCoefficientWPerK": 265.0837881713173, "temperatureDifferenceK": 31.3, "designHeatLossW": 8297.12256976223 }, { "name": "Windows", "quantity": 548.52, "quantityUnit": "m2", "coefficient": 0.7007883045072277, "coefficientUnit": "W/(m2.K)", "heatLossCoefficientWPerK": 384.39640078830456, "temperatureDifferenceK": 31.3, "designHeatLossW": 12031.607344673934 }, { "name": "Roof", "quantity": 1369.11, "quantityUnit": "m2", "coefficient": 0.1007866816054291, "coefficientUnit": "W/(m2.K)", "heatLossCoefficientWPerK": 137.98805365280901, "temperatureDifferenceK": 31.3, "designHeatLossW": 4319.026079332923 }, { "name": "Ground Floor", "quantity": 1173.44, "quantityUnit": "m2", "coefficient": 0.13409429178975033, "coefficientUnit": "W/(m2.K)", "heatLossCoefficientWPerK": 157.35160575776462, "temperatureDifferenceK": 6.5, "designHeatLossW": 1022.78543742547 }, { "name": "Infiltration/Ventilation", "quantity": 17503.65, "quantityUnit": "m3", "coefficient": 0.276, "coefficientUnit": "1/h", "heatLossCoefficientWPerK": 1642.5425160000004, "temperatureDifferenceK": 31.3, "designHeatLossW": 51411.580750800014 } ] } }, "limitations": [ { "id": "L-MODEL-NOT-SURVEY", "text": "Geometric measurements come from IFC quantities and solids. They are not a field survey, and omitted or misclassified model elements can bias the envelope." }, { "id": "L-NO-METER", "text": "No metered energy series or calibration is included in this export. Linked source archives may contain separate measurements; every energy output here is modeled, not observed consumption." }, { "id": "L-BASELINE", "text": "This export uses the published baseline recipe and material inputs. It excludes browser edits, proposed retrofits, and financing selections." }, { "id": "L-CLIMATE", "text": "The climate is the explicitly assumed engine climate, not a weather series for the IFC's declared site. Read the climate assumption before comparing sites." }, { "id": "L-SCREENING", "text": "The annual degree-day engine is a screening model, not the unwired ISO 13790 monthly kernel, a dynamic hourly simulation, or a certified assessment." }, { "id": "L-GRADE-SHARES", "text": "The grade's fuel split adds 15% of HVAC total to electricity and 10% to gas, assigns heating to gas, and sets district energy and renewable contribution to zero. It does not read lighting power density or PV capacity. The grade is a comparison on Korean thresholds, not an official certificate." }, { "id": "L-SITE-TOTAL", "text": "The estimated whole-building total uses end-use ratios to expand HVAC demand. It differs from the simplified fuel shares behind the grade; these totals must not be interchanged." } ], "links": { "model": "/models/taltech-maemaja", "dataset": "/api/reference-buildings/taltech-maemaja/dataset", "catalogueJson": "/api/reference-buildings/datasets", "catalogueCsv": "/api/reference-buildings/datasets?format=csv" }, "integrity": { "algorithm": "SHA-256", "manifestSha256": "f1ef3566d97306e0e45854d2c4353b635c170a50be95aa75b876eadf44c9b751", "modelInputsSha256": "3dbfdeb69f484639c77ae1f83876d05ecb9a993beb5a3260b26775c387ce215c", "datasetPayloadSha256": "ec01b05890f699f319ff7307c53fc4411de2abd0350d643cee18484b687b7c91", "payloadHashScope": "UTF-8 JSON.stringify of this object without the integrity property; property order is preserved.", "codeRevision": "b52ba9c55e5dc195bb0058397e9415b7e775527b", "codeRevisionStatus": "deployment_metadata" } }