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    "ko": "TalTech 매에마야",
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    "ko": "에스토니아 탈린 공과대학교의 실제 사무·연구시설. SmartLivingEPC가 IFC와 별도의 계측 데이터를 공개했습니다.",
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    "exteriorWallBelowRoofSqm": 1939.94,
    "exteriorWallAboveRoofSqm": 0,
    "exteriorWallByOrientationSqm": {
      "N": 616.86,
      "NE": 0,
      "E": 467.15,
      "SE": 0,
      "S": 421.73,
      "SW": 0,
      "W": 434.21,
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    "glazingApertureSqm": 548.52,
    "glazingByOrientationSqm": {
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      "NE": 0,
      "E": 79.41,
      "SE": 0,
      "S": 71.57,
      "SW": 0,
      "W": 308.85,
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    "exteriorDoorByOrientationSqm": {
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      "NE": 0,
      "E": 41.36,
      "SE": 0,
      "S": 3.89,
      "SW": 0,
      "W": 6.7,
      "NW": 0
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    "openingsNote": "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.",
    "conditionedVolumeGrossM3": 17503.65,
    "roomVolumeNetM3": 15841.48,
    "volumeNote": "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.",
    "roofProjectedSqm": 1539.02,
    "roofProjectedByFamilySqm": {
      "Basic Roof:KL-02": 633.45,
      "Basic Roof:KL-01*": 511.95,
      "Basic Roof:KL-03": 143.34,
      "Basic Roof:KL-01": 74.72,
      "Basic Roof:KL-04": 24.34,
      "PP_4:PP_26": 18.53,
      "PP_28:PP_26": 18.52,
      "PP_30:PP_26": 18.52,
      "PP_29:PP_26": 18.52,
      "PP_27:PP_26": 18.39,
      "PP_31:PP_26": 18.23,
      "PP_26:PP_26": 17.32,
      "PP_32:PP_26": 16.04,
      "PP_68:PP_68": 7.13
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    "roofElementSumSqm": 1539.02,
    "roofUnionSqm": 1361.56,
    "roofSurfaceSqm": 1581.14,
    "roofSurfaceByFamilySqm": {
      "Basic Roof:KL-02": 667.59,
      "Basic Roof:KL-01*": 516.73,
      "Basic Roof:KL-03": 143.36,
      "Basic Roof:KL-01": 75.45,
      "Basic Roof:KL-04": 26.73,
      "PP_4:PP_26": 18.53,
      "PP_28:PP_26": 18.53,
      "PP_29:PP_26": 18.53,
      "PP_30:PP_26": 18.53,
      "PP_27:PP_26": 18.4,
      "PP_31:PP_26": 18.24,
      "PP_26:PP_26": 17.33,
      "PP_32:PP_26": 16.05,
      "PP_68:PP_68": 7.13
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    "roofNote": "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.",
    "groundSlabSqm": 1173.44,
    "groundSlabSumSqm": 1173.45,
    "groundPerimeterM": 524.97,
    "groundHolePerimeterM": 44.99,
    "groundNote": "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."
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          "ref": "ifc://DS3_TalTech_V4.ifc#417256"
        },
        {
          "name": "Tycroc TWP(1)",
          "thicknessM": 0.012,
          "ref": "ifc://DS3_TalTech_V4.ifc#417257"
        },
        {
          "name": "Teraskarkass(1)",
          "thicknessM": 0.095,
          "ref": "ifc://DS3_TalTech_V4.ifc#417258"
        }
      ],
      "ref": "ifc://DS3_TalTech_V4.ifc#417259"
    },
    {
      "id": "assembly-basic-wall-ruukki-classic-nextgen",
      "name": "Basic Wall:RUUKKI Classic NextGen",
      "totalThicknessM": 0.001,
      "layers": [
        {
          "name": "RUUKKI Classic NextGen",
          "thicknessM": 0.001,
          "ref": "ifc://DS3_TalTech_V4.ifc#422703"
        }
      ],
      "ref": "ifc://DS3_TalTech_V4.ifc#422704"
    },
    {
      "id": "assembly-basic-wall-vs-02-source-e4dd148ead07",
      "name": "Basic Wall:VS-02",
      "totalThicknessM": 0.6,
      "layers": [
        {
          "name": "ol.ol r/b plokkidest sein(1)",
          "thicknessM": 0.4,
          "ref": "ifc://DS3_TalTech_V4.ifc#427814"
        },
        {
          "name": "Soojustus",
          "thicknessM": 0.2,
          "ref": "ifc://DS3_TalTech_V4.ifc#427815"
        }
      ],
      "ref": "ifc://DS3_TalTech_V4.ifc#427816"
    },
    {
      "id": "assembly-basic-wall-plekk",
      "name": "Basic Wall:Plekk",
      "totalThicknessM": 0.025,
      "layers": [
        {
          "name": "Fassaadi plekk",
          "thicknessM": 0.025,
          "ref": "ifc://DS3_TalTech_V4.ifc#429774"
        }
      ],
      "ref": "ifc://DS3_TalTech_V4.ifc#429775"
    },
    {
      "id": "assembly-floor-plekk",
      "name": "Floor:Plekk",
      "totalThicknessM": 0.025,
      "layers": [
        {
          "name": "Fassaadi plekk",
          "thicknessM": 0.025,
          "ref": "ifc://DS3_TalTech_V4.ifc#429966"
        }
      ],
      "ref": "ifc://DS3_TalTech_V4.ifc#429967"
    },
    {
      "id": "assembly-basic-roof-fassaadi-plekk",
      "name": "Basic Roof:Fassaadi plekk",
      "totalThicknessM": 0.025,
      "layers": [
        {
          "name": "Fassaadi plekk",
          "thicknessM": 0.025,
          "ref": "ifc://DS3_TalTech_V4.ifc#430131"
        }
      ],
      "ref": "ifc://DS3_TalTech_V4.ifc#430132"
    },
    {
      "id": "assembly-basic-roof-sileplekk",
      "name": "Basic Roof:Sileplekk",
      "totalThicknessM": 0.02,
      "layers": [
        {
          "name": "Sileplekk",
          "thicknessM": 0.02,
          "ref": "ifc://DS3_TalTech_V4.ifc#433112"
        }
      ],
      "ref": "ifc://DS3_TalTech_V4.ifc#433113"
    },
    {
      "id": "assembly-basic-wall-generic-400",
      "name": "Basic Wall:Generic 400",
      "totalThicknessM": 0.4,
      "layers": [
        {
          "name": "Default",
          "thicknessM": 0.4,
          "ref": "ifc://DS3_TalTech_V4.ifc#500513"
        }
      ],
      "ref": "ifc://DS3_TalTech_V4.ifc#500514"
    },
    {
      "id": "assembly-basic-wall-generic-510",
      "name": "Basic Wall:Generic 510",
      "totalThicknessM": 0.51,
      "layers": [
        {
          "name": "Default",
          "thicknessM": 0.51,
          "ref": "ifc://DS3_TalTech_V4.ifc#500628"
        }
      ],
      "ref": "ifc://DS3_TalTech_V4.ifc#500629"
    }
  ],
  "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."
  },
  "site": {
    "declaredSiteName": "Surface:4344263",
    "declaredLatitudeDeg": 59.39499282833333,
    "declaredLongitudeDeg": 24.659236907777775,
    "locationIsAuthoringDefault": false,
    "locationNote": "The source publication identifies TalTech Ehituse Mäemaja, Tallinn, Estonia. IFC coordinates are retained as stated by the source; energy climate selection is a separate explicit input.",
    "statedTown": "Tallinn, Estonia",
    "trueNorthStated": null
  },
  "storeys": [
    {
      "id": "storey-kelder",
      "name": "+Kelder",
      "elevationM": -3.5,
      "floorToFloorHeightM": 3.5,
      "spaceCount": 44,
      "floorAreaSqm": 1160.67,
      "ref": "ifc://DS3_TalTech_V4.ifc#37"
    },
    {
      "id": "storey-1-korrus",
      "name": "1. korrus",
      "elevationM": 0,
      "floorToFloorHeightM": 4.9,
      "spaceCount": 29,
      "floorAreaSqm": 1230.4,
      "ref": "ifc://DS3_TalTech_V4.ifc#40"
    },
    {
      "id": "storey-2-korrus",
      "name": "2. korrus",
      "elevationM": 4.9,
      "floorToFloorHeightM": 4.9,
      "spaceCount": 18,
      "floorAreaSqm": 548.94,
      "ref": "ifc://DS3_TalTech_V4.ifc#44"
    },
    {
      "id": "storey-3-korrus",
      "name": "3. korrus",
      "elevationM": 9.8,
      "floorToFloorHeightM": 4.71,
      "spaceCount": 24,
      "floorAreaSqm": 546.11,
      "ref": "ifc://DS3_TalTech_V4.ifc#48"
    },
    {
      "id": "storey-katus",
      "name": "Katus",
      "elevationM": 14.51,
      "floorToFloorHeightM": 0,
      "spaceCount": 0,
      "floorAreaSqm": 0,
      "ref": "ifc://DS3_TalTech_V4.ifc#52"
    }
  ],
  "spacesFile": "spaces.json",
  "roofs": [
    {
      "id": "roof-295950",
      "name": "Basic Roof:KL-02:2320553",
      "family": "Basic Roof:KL-02",
      "elementType": "IfcRoof",
      "predefinedType": "NOTDEFINED",
      "basis": "IfcRoof",
      "storeyId": "storey-katus",
      "projectedSqm": 633.45,
      "upFacingProjectedSqm": 667.32,
      "tiltDeg": 1.6,
      "surfaceSqm": 667.59,
      "surfaceBasis": "upward faces: open surface, one sheet",
      "partOf": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#295950"
    },
    {
      "id": "roof-309035",
      "name": "Basic Roof:KL-03:2326404",
      "family": "Basic Roof:KL-03",
      "elementType": "IfcRoof",
      "predefinedType": "NOTDEFINED",
      "basis": "IfcRoof",
      "storeyId": "storey-2-korrus",
      "projectedSqm": 143.34,
      "upFacingProjectedSqm": 143.33,
      "tiltDeg": 0.8,
      "surfaceSqm": 143.36,
      "surfaceBasis": "upward faces of a closed solid",
      "partOf": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#309035"
    },
    {
      "id": "roof-322523",
      "name": "Basic Roof:KL-01*:2454458",
      "family": "Basic Roof:KL-01*",
      "elementType": "IfcRoof",
      "predefinedType": "NOTDEFINED",
      "basis": "IfcRoof",
      "storeyId": "storey-katus",
      "projectedSqm": 431.16,
      "upFacingProjectedSqm": 431.16,
      "tiltDeg": 8.1,
      "surfaceSqm": 435.94,
      "surfaceBasis": "upward faces of a closed solid",
      "partOf": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#322523"
    },
    {
      "id": "roof-322913",
      "name": "Basic Roof:KL-01:2457151",
      "family": "Basic Roof:KL-01",
      "elementType": "IfcRoof",
      "predefinedType": "NOTDEFINED",
      "basis": "IfcRoof",
      "storeyId": "storey-katus",
      "projectedSqm": 74.72,
      "upFacingProjectedSqm": 74.72,
      "tiltDeg": 8,
      "surfaceSqm": 75.45,
      "surfaceBasis": "upward faces of a closed solid",
      "partOf": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#322913"
    },
    {
      "id": "roof-323165",
      "name": "Basic Roof:KL-01*:2457832",
      "family": "Basic Roof:KL-01*",
      "elementType": "IfcRoof",
      "predefinedType": "NOTDEFINED",
      "basis": "IfcRoof",
      "storeyId": "storey-2-korrus",
      "projectedSqm": 15.14,
      "upFacingProjectedSqm": 30.17,
      "tiltDeg": 2.2,
      "surfaceSqm": 15.1,
      "surfaceBasis": "upward faces ÷ 2: surface model with no downward face, both sheets wound upward",
      "partOf": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#323165"
    },
    {
      "id": "roof-323361",
      "name": "Basic Roof:KL-01*:2457876",
      "family": "Basic Roof:KL-01*",
      "elementType": "IfcRoof",
      "predefinedType": "NOTDEFINED",
      "basis": "IfcRoof",
      "storeyId": "storey-2-korrus",
      "projectedSqm": 15.14,
      "upFacingProjectedSqm": 30.17,
      "tiltDeg": 2.2,
      "surfaceSqm": 15.09,
      "surfaceBasis": "upward faces ÷ 2: surface model with no downward face, both sheets wound upward",
      "partOf": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#323361"
    },
    {
      "id": "roof-323564",
      "name": "Basic Roof:KL-01*:2457890",
      "family": "Basic Roof:KL-01*",
      "elementType": "IfcRoof",
      "predefinedType": "NOTDEFINED",
      "basis": "IfcRoof",
      "storeyId": "storey-2-korrus",
      "projectedSqm": 15.14,
      "upFacingProjectedSqm": 30.19,
      "tiltDeg": 4.3,
      "surfaceSqm": 15.14,
      "surfaceBasis": "upward faces ÷ 2: surface model with no downward face, both sheets wound upward",
      "partOf": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#323564"
    },
    {
      "id": "roof-323766",
      "name": "Basic Roof:KL-01*:2457900",
      "family": "Basic Roof:KL-01*",
      "elementType": "IfcRoof",
      "predefinedType": "NOTDEFINED",
      "basis": "IfcRoof",
      "storeyId": "storey-2-korrus",
      "projectedSqm": 15.14,
      "upFacingProjectedSqm": 30.2,
      "tiltDeg": 4.3,
      "surfaceSqm": 15.14,
      "surfaceBasis": "upward faces ÷ 2: surface model with no downward face, both sheets wound upward",
      "partOf": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#323766"
    },
    {
      "id": "roof-323962",
      "name": "Basic Roof:KL-01*:2457923",
      "family": "Basic Roof:KL-01*",
      "elementType": "IfcRoof",
      "predefinedType": "NOTDEFINED",
      "basis": "IfcRoof",
      "storeyId": "storey-2-korrus",
      "projectedSqm": 10.07,
      "upFacingProjectedSqm": 17.91,
      "tiltDeg": 5.5,
      "surfaceSqm": 10.11,
      "surfaceBasis": "upward faces ÷ 1.78: the element's parts cover its shadow 1.78× over (stacked layer solids or overlapping pieces)",
      "partOf": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#323962"
    },
    {
      "id": "roof-324157",
      "name": "Basic Roof:KL-01*:2457967",
      "family": "Basic Roof:KL-01*",
      "elementType": "IfcRoof",
      "predefinedType": "NOTDEFINED",
      "basis": "IfcRoof",
      "storeyId": "storey-2-korrus",
      "projectedSqm": 10.15,
      "upFacingProjectedSqm": 17.99,
      "tiltDeg": 5.6,
      "surfaceSqm": 10.2,
      "surfaceBasis": "upward faces ÷ 1.77: the element's parts cover its shadow 1.77× over (stacked layer solids or overlapping pieces)",
      "partOf": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#324157"
    },
    {
      "id": "roof-325938",
      "name": "Basic Roof:KL-04:2476301",
      "family": "Basic Roof:KL-04",
      "elementType": "IfcRoof",
      "predefinedType": "NOTDEFINED",
      "basis": "IfcRoof",
      "storeyId": "storey-katus",
      "projectedSqm": 24.34,
      "upFacingProjectedSqm": 24.32,
      "tiltDeg": 24.5,
      "surfaceSqm": 26.73,
      "surfaceBasis": "upward faces of a closed solid",
      "partOf": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#325938"
    },
    {
      "id": "roof-239761",
      "name": "PP_26:PP_26:932499",
      "family": "PP_26:PP_26",
      "elementType": "IfcCovering",
      "predefinedType": "ROOFING",
      "basis": "IfcCovering.PredefinedType=ROOFING",
      "storeyId": "storey-2-korrus",
      "projectedSqm": 17.32,
      "upFacingProjectedSqm": 17.32,
      "tiltDeg": 1.5,
      "surfaceSqm": 17.33,
      "surfaceBasis": "upward faces of a closed solid",
      "partOf": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#239761"
    },
    {
      "id": "roof-239815",
      "name": "PP_4:PP_26:932675",
      "family": "PP_4:PP_26",
      "elementType": "IfcCovering",
      "predefinedType": "ROOFING",
      "basis": "IfcCovering.PredefinedType=ROOFING",
      "storeyId": "storey-2-korrus",
      "projectedSqm": 18.53,
      "upFacingProjectedSqm": 18.53,
      "tiltDeg": 1.5,
      "surfaceSqm": 18.53,
      "surfaceBasis": "upward faces of a closed solid",
      "partOf": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#239815"
    },
    {
      "id": "roof-240152",
      "name": "PP_27:PP_26:932829",
      "family": "PP_27:PP_26",
      "elementType": "IfcCovering",
      "predefinedType": "ROOFING",
      "basis": "IfcCovering.PredefinedType=ROOFING",
      "storeyId": "storey-2-korrus",
      "projectedSqm": 18.39,
      "upFacingProjectedSqm": 18.39,
      "tiltDeg": 1.5,
      "surfaceSqm": 18.4,
      "surfaceBasis": "upward faces of a closed solid",
      "partOf": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#240152"
    },
    {
      "id": "roof-240204",
      "name": "PP_28:PP_26:933032",
      "family": "PP_28:PP_26",
      "elementType": "IfcCovering",
      "predefinedType": "ROOFING",
      "basis": "IfcCovering.PredefinedType=ROOFING",
      "storeyId": "storey-2-korrus",
      "projectedSqm": 18.52,
      "upFacingProjectedSqm": 18.52,
      "tiltDeg": 1.5,
      "surfaceSqm": 18.53,
      "surfaceBasis": "upward faces of a closed solid",
      "partOf": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#240204"
    },
    {
      "id": "roof-240258",
      "name": "PP_29:PP_26:933210",
      "family": "PP_29:PP_26",
      "elementType": "IfcCovering",
      "predefinedType": "ROOFING",
      "basis": "IfcCovering.PredefinedType=ROOFING",
      "storeyId": "storey-2-korrus",
      "projectedSqm": 18.52,
      "upFacingProjectedSqm": 18.52,
      "tiltDeg": 1.5,
      "surfaceSqm": 18.53,
      "surfaceBasis": "upward faces of a closed solid",
      "partOf": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#240258"
    },
    {
      "id": "roof-240312",
      "name": "PP_30:PP_26:933301",
      "family": "PP_30:PP_26",
      "elementType": "IfcCovering",
      "predefinedType": "ROOFING",
      "basis": "IfcCovering.PredefinedType=ROOFING",
      "storeyId": "storey-2-korrus",
      "projectedSqm": 18.52,
      "upFacingProjectedSqm": 18.52,
      "tiltDeg": 1.5,
      "surfaceSqm": 18.53,
      "surfaceBasis": "upward faces of a closed solid",
      "partOf": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#240312"
    },
    {
      "id": "roof-240528",
      "name": "PP_31:PP_26:933379",
      "family": "PP_31:PP_26",
      "elementType": "IfcCovering",
      "predefinedType": "ROOFING",
      "basis": "IfcCovering.PredefinedType=ROOFING",
      "storeyId": "storey-2-korrus",
      "projectedSqm": 18.23,
      "upFacingProjectedSqm": 18.23,
      "tiltDeg": 1.5,
      "surfaceSqm": 18.24,
      "surfaceBasis": "upward faces of a closed solid",
      "partOf": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#240528"
    },
    {
      "id": "roof-240799",
      "name": "PP_32:PP_26:933455",
      "family": "PP_32:PP_26",
      "elementType": "IfcCovering",
      "predefinedType": "ROOFING",
      "basis": "IfcCovering.PredefinedType=ROOFING",
      "storeyId": "storey-2-korrus",
      "projectedSqm": 16.04,
      "upFacingProjectedSqm": 16.04,
      "tiltDeg": 1.5,
      "surfaceSqm": 16.05,
      "surfaceBasis": "upward faces of a closed solid",
      "partOf": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#240799"
    },
    {
      "id": "roof-241133",
      "name": "PP_68:PP_68:939345",
      "family": "PP_68:PP_68",
      "elementType": "IfcCovering",
      "predefinedType": "ROOFING",
      "basis": "IfcCovering.PredefinedType=ROOFING",
      "storeyId": "storey-2-korrus",
      "projectedSqm": 7.13,
      "upFacingProjectedSqm": 7.13,
      "tiltDeg": 0,
      "surfaceSqm": 7.13,
      "surfaceBasis": "upward faces of a closed solid",
      "partOf": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#241133"
    }
  ],
  "groundSlabs": [
    {
      "id": "slab-180599",
      "name": "Floor:trepp telg x aluspõrand:706309",
      "elementType": "IfcSlab",
      "predefinedType": "FLOOR",
      "storeyId": "storey-kelder",
      "projectedSqm": 21.13,
      "countsAsGround": false,
      "evidence": null,
      "excludedReason": "no conditioned space stands on it: no conditioned ground-storey footprint overlaps its shadow and no IfcRelSpaceBoundary names it",
      "ref": "ifc://DS3_TalTech_V4.ifc#180599"
    },
    {
      "id": "slab-180693",
      "name": "Floor:trepp telg x aluspõrand:706541",
      "elementType": "IfcSlab",
      "predefinedType": "FLOOR",
      "storeyId": "storey-kelder",
      "projectedSqm": 1.25,
      "countsAsGround": false,
      "evidence": null,
      "excludedReason": "no conditioned space stands on it: no conditioned ground-storey footprint overlaps its shadow and no IfcRelSpaceBoundary names it",
      "ref": "ifc://DS3_TalTech_V4.ifc#180693"
    },
    {
      "id": "slab-180762",
      "name": "Floor:trepp telg x aluspõrand:706698",
      "elementType": "IfcSlab",
      "predefinedType": "FLOOR",
      "storeyId": "storey-kelder",
      "projectedSqm": 1.58,
      "countsAsGround": false,
      "evidence": null,
      "excludedReason": "no conditioned space stands on it: no conditioned ground-storey footprint overlaps its shadow and no IfcRelSpaceBoundary names it",
      "ref": "ifc://DS3_TalTech_V4.ifc#180762"
    },
    {
      "id": "slab-180831",
      "name": "Floor:trepp telg x aluspõrand:706763",
      "elementType": "IfcSlab",
      "predefinedType": "FLOOR",
      "storeyId": "storey-kelder",
      "projectedSqm": 0.92,
      "countsAsGround": false,
      "evidence": null,
      "excludedReason": "no conditioned space stands on it: no conditioned ground-storey footprint overlaps its shadow and no IfcRelSpaceBoundary names it",
      "ref": "ifc://DS3_TalTech_V4.ifc#180831"
    },
    {
      "id": "slab-180900",
      "name": "Floor:trepp telg x aluspõrand:706812",
      "elementType": "IfcSlab",
      "predefinedType": "FLOOR",
      "storeyId": "storey-kelder",
      "projectedSqm": 1.25,
      "countsAsGround": false,
      "evidence": null,
      "excludedReason": "no conditioned space stands on it: no conditioned ground-storey footprint overlaps its shadow and no IfcRelSpaceBoundary names it",
      "ref": "ifc://DS3_TalTech_V4.ifc#180900"
    },
    {
      "id": "slab-180969",
      "name": "Floor:trepp telg x aluspõrand:706851",
      "elementType": "IfcSlab",
      "predefinedType": "FLOOR",
      "storeyId": "storey-kelder",
      "projectedSqm": 1.26,
      "countsAsGround": false,
      "evidence": null,
      "excludedReason": "no conditioned space stands on it: no conditioned ground-storey footprint overlaps its shadow and no IfcRelSpaceBoundary names it",
      "ref": "ifc://DS3_TalTech_V4.ifc#180969"
    },
    {
      "id": "slab-181038",
      "name": "Floor:trepp telg x aluspõrand:706861",
      "elementType": "IfcSlab",
      "predefinedType": "FLOOR",
      "storeyId": "storey-kelder",
      "projectedSqm": 0.28,
      "countsAsGround": false,
      "evidence": null,
      "excludedReason": "no conditioned space stands on it: no conditioned ground-storey footprint overlaps its shadow and no IfcRelSpaceBoundary names it",
      "ref": "ifc://DS3_TalTech_V4.ifc#181038"
    },
    {
      "id": "slab-210978",
      "name": "Floor:PP03:729291",
      "elementType": "IfcSlab",
      "predefinedType": "FLOOR",
      "storeyId": "storey-kelder",
      "projectedSqm": 59.04,
      "countsAsGround": true,
      "evidence": "52.99 m² under 7 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#210978"
    },
    {
      "id": "slab-211110",
      "name": "Floor:PP02:730051",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 0.45,
      "countsAsGround": true,
      "evidence": "0.45 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#211110"
    },
    {
      "id": "slab-211141",
      "name": "Floor:PP02:730051",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 11.99,
      "countsAsGround": true,
      "evidence": "11.99 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#211141"
    },
    {
      "id": "slab-211163",
      "name": "Floor:PP02:730051",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 0.15,
      "countsAsGround": true,
      "evidence": "0.15 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#211163"
    },
    {
      "id": "slab-211184",
      "name": "Floor:PP02:730051",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 0.67,
      "countsAsGround": true,
      "evidence": "0.67 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#211184"
    },
    {
      "id": "slab-211208",
      "name": "Floor:PP02:730051",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 1.27,
      "countsAsGround": true,
      "evidence": "1.27 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#211208"
    },
    {
      "id": "slab-211231",
      "name": "Floor:PP02:730051",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 11.14,
      "countsAsGround": true,
      "evidence": "11.14 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#211231"
    },
    {
      "id": "slab-211254",
      "name": "Floor:PP02:730051",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 4.25,
      "countsAsGround": true,
      "evidence": "4.25 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#211254"
    },
    {
      "id": "slab-211277",
      "name": "Floor:PP02:730051",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 12.67,
      "countsAsGround": true,
      "evidence": "12.67 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#211277"
    },
    {
      "id": "slab-211301",
      "name": "Floor:PP02:730051",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 7.72,
      "countsAsGround": true,
      "evidence": "7.72 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#211301"
    },
    {
      "id": "slab-211324",
      "name": "Floor:PP02:730051",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 17.1,
      "countsAsGround": true,
      "evidence": "17.1 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#211324"
    },
    {
      "id": "slab-211346",
      "name": "Floor:PP02:730051",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 0.56,
      "countsAsGround": true,
      "evidence": "0.56 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#211346"
    },
    {
      "id": "slab-211364",
      "name": "Floor:PP02:730051",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 0.06,
      "countsAsGround": true,
      "evidence": "0.06 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#211364"
    },
    {
      "id": "slab-211801",
      "name": "Floor:PP02:732571",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 3.54,
      "countsAsGround": true,
      "evidence": "3.54 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#211801"
    },
    {
      "id": "slab-211825",
      "name": "Floor:PP02:732571",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 4.25,
      "countsAsGround": true,
      "evidence": "4.25 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#211825"
    },
    {
      "id": "slab-211845",
      "name": "Floor:PP02:732571",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 0.21,
      "countsAsGround": true,
      "evidence": "0.21 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#211845"
    },
    {
      "id": "slab-211868",
      "name": "Floor:PP02:732571",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 3.36,
      "countsAsGround": true,
      "evidence": "3.36 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#211868"
    },
    {
      "id": "slab-211891",
      "name": "Floor:PP02:732571",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 0.14,
      "countsAsGround": true,
      "evidence": "0.14 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#211891"
    },
    {
      "id": "slab-211914",
      "name": "Floor:PP02:732571",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 0.3,
      "countsAsGround": true,
      "evidence": "0.3 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#211914"
    },
    {
      "id": "slab-211937",
      "name": "Floor:PP02:732571",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 3.84,
      "countsAsGround": true,
      "evidence": "3.84 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#211937"
    },
    {
      "id": "slab-211955",
      "name": "Floor:PP02:732571",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 0.06,
      "countsAsGround": true,
      "evidence": "0.06 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#211955"
    },
    {
      "id": "slab-212254",
      "name": "Floor:PP03:732813",
      "elementType": "IfcSlab",
      "predefinedType": "FLOOR",
      "storeyId": "storey-kelder",
      "projectedSqm": 7.1,
      "countsAsGround": true,
      "evidence": "5.38 m² under 2 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#212254"
    },
    {
      "id": "slab-212331",
      "name": "Floor:PP03:732848",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 3.86,
      "countsAsGround": true,
      "evidence": "3.85 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#212331"
    },
    {
      "id": "slab-212355",
      "name": "Floor:PP03:732848",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 4.14,
      "countsAsGround": true,
      "evidence": "3.6 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#212355"
    },
    {
      "id": "slab-212375",
      "name": "Floor:PP03:732848",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 0.24,
      "countsAsGround": true,
      "evidence": "0.21 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#212375"
    },
    {
      "id": "slab-212398",
      "name": "Floor:PP03:732848",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 3.51,
      "countsAsGround": true,
      "evidence": "3.5 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#212398"
    },
    {
      "id": "slab-212420",
      "name": "Floor:PP03:732848",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 0.19,
      "countsAsGround": true,
      "evidence": "0.19 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#212420"
    },
    {
      "id": "slab-212442",
      "name": "Floor:PP03:732848",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 0.29,
      "countsAsGround": true,
      "evidence": "0.29 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#212442"
    },
    {
      "id": "slab-212466",
      "name": "Floor:PP03:732848",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 3.71,
      "countsAsGround": true,
      "evidence": "3.64 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#212466"
    },
    {
      "id": "slab-212484",
      "name": "Floor:PP03:732848",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 0.06,
      "countsAsGround": true,
      "evidence": "0.06 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#212484"
    },
    {
      "id": "slab-212745",
      "name": "Floor:PP03:733472",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 0.76,
      "countsAsGround": true,
      "evidence": "0.76 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#212745"
    },
    {
      "id": "slab-212768",
      "name": "Floor:PP03:733472",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 1.35,
      "countsAsGround": true,
      "evidence": "1.35 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#212768"
    },
    {
      "id": "slab-212791",
      "name": "Floor:PP03:733472",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 1.29,
      "countsAsGround": true,
      "evidence": "1.29 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#212791"
    },
    {
      "id": "slab-212812",
      "name": "Floor:PP03:733472",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 1.3,
      "countsAsGround": true,
      "evidence": "1.04 m² under 2 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#212812"
    },
    {
      "id": "slab-212830",
      "name": "Floor:PP03:733472",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 0.06,
      "countsAsGround": true,
      "evidence": "0.06 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#212830"
    },
    {
      "id": "slab-212853",
      "name": "Floor:PP03:733472",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 0.39,
      "countsAsGround": true,
      "evidence": "0.39 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#212853"
    },
    {
      "id": "slab-212876",
      "name": "Floor:PP03:733472",
      "elementType": "IfcSlab",
      "predefinedType": "NOTDEFINED",
      "storeyId": "storey-kelder",
      "projectedSqm": 2.25,
      "countsAsGround": true,
      "evidence": "2.25 m² under 1 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#212876"
    },
    {
      "id": "slab-213292",
      "name": "Floor:PP02:733764",
      "elementType": "IfcSlab",
      "predefinedType": "FLOOR",
      "storeyId": "storey-kelder",
      "projectedSqm": 458.04,
      "countsAsGround": true,
      "evidence": "431.2 m² under 19 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#213292"
    },
    {
      "id": "slab-213461",
      "name": "Floor:PP02:735519",
      "elementType": "IfcSlab",
      "predefinedType": "FLOOR",
      "storeyId": "storey-kelder",
      "projectedSqm": 26.24,
      "countsAsGround": true,
      "evidence": "25.38 m² under 2 conditioned space footprint(s)",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#213461"
    },
    {
      "id": "slab-213537",
      "name": "Floor:PP02:736019",
      "elementType": "IfcSlab",
      "predefinedType": "FLOOR",
      "storeyId": "storey-kelder",
      "projectedSqm": 7.52,
      "countsAsGround": true,
      "evidence": "6.56 m² under 1 conditioned space footprint(s); bounds 1 conditioned space(s) per IfcRelSpaceBoundary",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#213537"
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    {
      "id": "slab-213693",
      "name": "Floor:PP01:736254",
      "elementType": "IfcSlab",
      "predefinedType": "FLOOR",
      "storeyId": "storey-kelder",
      "projectedSqm": 465.2,
      "countsAsGround": true,
      "evidence": "456.15 m² under 13 conditioned space footprint(s); bounds 12 conditioned space(s) per IfcRelSpaceBoundary",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#213693"
    },
    {
      "id": "slab-213802",
      "name": "Floor:PP01:736643",
      "elementType": "IfcSlab",
      "predefinedType": "FLOOR",
      "storeyId": "storey-kelder",
      "projectedSqm": 10.51,
      "countsAsGround": true,
      "evidence": "10.27 m² under 1 conditioned space footprint(s); bounds 1 conditioned space(s) per IfcRelSpaceBoundary",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#213802"
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    {
      "id": "slab-213878",
      "name": "Floor:PP01:736840",
      "elementType": "IfcSlab",
      "predefinedType": "FLOOR",
      "storeyId": "storey-kelder",
      "projectedSqm": 17.58,
      "countsAsGround": true,
      "evidence": "17.58 m² under 1 conditioned space footprint(s); bounds 1 conditioned space(s) per IfcRelSpaceBoundary",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#213878"
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    {
      "id": "slab-213947",
      "name": "Floor:PP01:736934",
      "elementType": "IfcSlab",
      "predefinedType": "FLOOR",
      "storeyId": "storey-kelder",
      "projectedSqm": 4.24,
      "countsAsGround": true,
      "evidence": "4.24 m² under 1 conditioned space footprint(s); bounds 1 conditioned space(s) per IfcRelSpaceBoundary",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#213947"
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    {
      "id": "slab-214045",
      "name": "Floor:PP01:736987",
      "elementType": "IfcSlab",
      "predefinedType": "FLOOR",
      "storeyId": "storey-kelder",
      "projectedSqm": 10.85,
      "countsAsGround": true,
      "evidence": "10.85 m² under 1 conditioned space footprint(s); bounds 1 conditioned space(s) per IfcRelSpaceBoundary",
      "excludedReason": null,
      "ref": "ifc://DS3_TalTech_V4.ifc#214045"
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  ],
  "openingsFile": "openings.json",
  "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
      }
    }
  ],
  "architecturalDetails": {
    "id": "details",
    "ko": "건축 상세",
    "en": "Architectural details",
    "file": "architectural-details.glb",
    "byteLength": 2093396,
    "sha256": "8340ed8c86636caf110a1d15d5ba30ada8ff1e75be29a4c27f644458cb00917e",
    "triangleCount": 39307,
    "placedTriangleCount": 40555,
    "triangleCountBasis": "triangleCount stores each instanced shape once; placedTriangleCount includes every placement",
    "groups": [
      "column",
      "covering",
      "beam",
      "railing"
    ],
    "elements": 983,
    "distinctGeometries": 945,
    "instancedShapes": 3,
    "instancedPlacements": 59,
    "drawCalls": 33,
    "materials": 30,
    "sourceFiles": [
      {
        "role": "architectural",
        "fileName": "DS3_TalTech_V4.ifc",
        "sha256": "05919eee0701b955d3d08501c4889c879d9c486e2389a6a1a5cdaad32a5d10ba",
        "types": [
          {
            "type": "IfcCovering",
            "candidates": 879,
            "rendered": 877,
            "withoutRenderedMesh": 2
          },
          {
            "type": "IfcColumn",
            "candidates": 102,
            "rendered": 102,
            "withoutRenderedMesh": 0
          },
          {
            "type": "IfcBeam",
            "candidates": 2,
            "rendered": 2,
            "withoutRenderedMesh": 0
          },
          {
            "type": "IfcRailing",
            "candidates": 2,
            "rendered": 2,
            "withoutRenderedMesh": 0
          }
        ]
      }
    ],
    "indexFile": "architectural-details-index.json",
    "indexSha256": "2b829a6e16c9ae6fb5defb3e17dd348cbd3019283293c541cf94f1fbecd13210",
    "appearance": "web-ifc tessellator RGBA, including possible default styles; no inferred finish textures. Metalness 0 and roughness 0.85 are renderer assumptions, not measured material properties.",
    "note": "Selected source IFC entity classes omitted from the core fabric layer. Original tessellated geometry and placements; repeated shapes use GPU instancing. Not a claim of complete architectural or fabrication detail. Existing services remain separate."
  },
  "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."
      }
    ]
  },
  "model": {
    "file": "model.glb",
    "byteLength": 5020176,
    "triangleCount": 79571,
    "groups": [
      "slab",
      "wall",
      "stair",
      "glazing",
      "door",
      "mullion"
    ],
    "note": "Building fabric only: walls, slabs, roofs and openings. Furniture, fixtures, railings and the structural frame are not in this file.",
    "serviceNote": "Service layers carry every component at the model's own geometry; a repeated shape is stored once and placed by instancing."
  },
  "invalidDiagnostics": {
    "note": "Space-boundary strip sums. INVALID as envelope areas: room-height not storey-height, gross of openings, double-counted where boundaries overlap, and blind to any wall without a resolvable boundary surface. Diagnostic only; never an emitted area.",
    "rawSumSqm": 2991.584,
    "rawSumByElementType": {
      "IfcWall": 2292.727,
      "IfcDoor": 64.69,
      "IfcCurtainWall": 111.593,
      "IfcWindow": 522.475,
      "IfcRoof": 0.099
    }
  },
  "sourcePhysics": {
    "file": "source-physics.json",
    "sha256": "9bf969388b54aab55bef72404315379c7c2ace5f22de32b5c918242783c0a274",
    "note": "Typed and alternate source thermal/equipment properties with property-set and type references; not measured operating performance."
  },
  "materialFabric": {
    "file": "material-fabric.glb",
    "byteLength": 1923980,
    "sha256": "9c8edb197b5c1bb251bee72f097502aefe071f41757398f945b39affab7743e8",
    "indexFile": "material-fabric-index.json",
    "indexSha256": "0738124227e233da6e8c8f35b334fee4d4cd3f2f37cf21055095314ff4a7aeb9",
    "elements": 807,
    "triangleCount": 78619,
    "placedTriangleCount": 79571,
    "drawCalls": 260,
    "bindings": [
      {
        "key": "slab__architectural_180610_occurrence",
        "group": "slab",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#180610",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#180611",
        "materialNames": [
          "CONCRETE/Concrete_Undefined",
          "Rigid insulation(4)"
        ],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#615760",
        "basis": "occurrence",
        "assemblyName": "Floor:trepp telg x aluspõrand",
        "representativeLayer": {
          "name": "CONCRETE/Concrete_Undefined",
          "thicknessM": 0.1,
          "ref": "ifc://DS3_TalTech_V4.ifc#180608"
        },
        "elements": 7
      },
      {
        "key": "slab__architectural_211026_occurrence",
        "group": "slab",
        "sourceRole": "architectural",
        "status": "unsupported",
        "assemblyRef": null,
        "materialRef": "ifc://DS3_TalTech_V4.ifc#211026",
        "materialNames": [],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#616746",
        "basis": "occurrence",
        "assemblyName": null,
        "representativeLayer": null,
        "elements": 1
      },
      {
        "key": "slab__architectural_211122_occurrence",
        "group": "slab",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#211122",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#211122",
        "materialNames": [
          "Betoon",
          "Vapour Retarder",
          "Rigid insulation(2)",
          "Radoonitõke",
          "Rigid insulation(2)",
          "Killustikalus"
        ],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#617059",
        "basis": "occurrence",
        "assemblyName": "Floor:PP02",
        "representativeLayer": {
          "name": "Killustikalus",
          "thicknessM": 0.2,
          "ref": "ifc://DS3_TalTech_V4.ifc#211121"
        },
        "elements": 23
      },
      {
        "key": "slab__architectural_211019_occurrence",
        "group": "slab",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#211019",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#212255",
        "materialNames": [
          "Air Infiltration Barrier",
          "Betoon",
          "Vapour Retarder",
          "Rigid insulation(2)",
          "Radoonitõke",
          "Rigid insulation(2)",
          "Killustikalus"
        ],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#615773",
        "basis": "occurrence",
        "assemblyName": "Floor:PP03",
        "representativeLayer": {
          "name": "Killustikalus",
          "thicknessM": 0.2,
          "ref": "ifc://DS3_TalTech_V4.ifc#211018"
        },
        "elements": 16
      },
      {
        "key": "slab__architectural_213708_occurrence",
        "group": "slab",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#213708",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#213709",
        "materialNames": [
          "Betoon",
          "Vapour Retarder",
          "Rigid insulation(3)",
          "Radoonitõke",
          "Rigid insulation(3)",
          "Killustikalus"
        ],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#615777",
        "basis": "occurrence",
        "assemblyName": "Floor:PP01",
        "representativeLayer": {
          "name": "Killustikalus",
          "thicknessM": 0.2,
          "ref": "ifc://DS3_TalTech_V4.ifc#213707"
        },
        "elements": 5
      },
      {
        "key": "slab__architectural_275465_occurrence",
        "group": "slab",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#275465",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#275466",
        "materialNames": [
          "Betoon(6)",
          "PVC kile",
          "Jäik mineraalvillaplaat(4)",
          "Mürasummutus matt(1)",
          "00_CLT"
        ],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#615954",
        "basis": "occurrence",
        "assemblyName": "Floor:VL04",
        "representativeLayer": {
          "name": "00_CLT",
          "thicknessM": 0.26,
          "ref": "ifc://DS3_TalTech_V4.ifc#275464"
        },
        "elements": 2
      },
      {
        "key": "slab__architectural_309475_occurrence",
        "group": "slab",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#309475",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#309476",
        "materialNames": [
          "Betoon",
          "PVC kile",
          "Jäik mineraalvillaplaat(3)",
          "EPS(4)",
          "Tulekindel kipsplaat"
        ],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#615964",
        "basis": "occurrence",
        "assemblyName": "Floor:VL03",
        "representativeLayer": {
          "name": "Tulekindel kipsplaat",
          "thicknessM": 0.265,
          "ref": "ifc://DS3_TalTech_V4.ifc#309474"
        },
        "elements": 1
      },
      {
        "key": "slab__architectural_310244_occurrence",
        "group": "slab",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#310244",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#310245",
        "materialNames": [
          "Hüdroisolatsioon",
          "Peenbetoon(2)",
          "PVC kile",
          "EPS"
        ],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#615966",
        "basis": "occurrence",
        "assemblyName": "Floor:Tuulekoja VL",
        "representativeLayer": {
          "name": "EPS",
          "thicknessM": 0.12,
          "ref": "ifc://DS3_TalTech_V4.ifc#310243"
        },
        "elements": 1
      },
      {
        "key": "slab__architectural_316896_occurrence",
        "group": "slab",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#316896",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#316897",
        "materialNames": [
          "ol.ol tasandusvalu",
          "ol.ol r/b jõupõrand(1)",
          "ol.ol monteeritav r/b õõnespaneel"
        ],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#615972",
        "basis": "occurrence",
        "assemblyName": "Floor:Jõupõrand",
        "representativeLayer": {
          "name": "ol.ol r/b jõupõrand(1)",
          "thicknessM": 0.58,
          "ref": "ifc://DS3_TalTech_V4.ifc#316894"
        },
        "elements": 1
      },
      {
        "key": "slab__architectural_319989_occurrence",
        "group": "slab",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#319989",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#319990",
        "materialNames": [
          "Betoon(3)"
        ],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#615979",
        "basis": "occurrence",
        "assemblyName": "Floor:Monoliitbetoon 4",
        "representativeLayer": {
          "name": "Betoon(3)",
          "thicknessM": 0.22,
          "ref": "ifc://DS3_TalTech_V4.ifc#319988"
        },
        "elements": 1
      },
      {
        "key": "slab__architectural_393424_occurrence",
        "group": "slab",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#393424",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#393425",
        "materialNames": [
          "Betoon(5)"
        ],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#616542",
        "basis": "occurrence",
        "assemblyName": "Floor:Monoliitbetoon 3",
        "representativeLayer": {
          "name": "Betoon(5)",
          "thicknessM": 0.2,
          "ref": "ifc://DS3_TalTech_V4.ifc#393423"
        },
        "elements": 1
      },
      {
        "key": "slab__architectural_415914_occurrence",
        "group": "slab",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#415914",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#415915",
        "materialNames": [
          "Puit(2)"
        ],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#616634",
        "basis": "occurrence",
        "assemblyName": "Floor:Liivakast perimeeter",
        "representativeLayer": {
          "name": "Puit(2)",
          "thicknessM": 0.16,
          "ref": "ifc://DS3_TalTech_V4.ifc#415913"
        },
        "elements": 1
      },
      {
        "key": "wall__architectural_158259_occurrence",
        "group": "wall",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#158259",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#158260",
        "materialNames": [
          "Betoonõõnesplokk(1)"
        ],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#615664",
        "basis": "occurrence",
        "assemblyName": "Basic Wall:SS-02",
        "representativeLayer": {
          "name": "Betoonõõnesplokk(1)",
          "thicknessM": 0.19,
          "ref": "ifc://DS3_TalTech_V4.ifc#158258"
        },
        "elements": 14
      },
      {
        "key": "wall__architectural_158479_occurrence",
        "group": "wall",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#158479",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#158480",
        "materialNames": [
          "R/B(5)"
        ],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#615666",
        "basis": "occurrence",
        "assemblyName": "Basic Wall:SS-01",
        "representativeLayer": {
          "name": "R/B(5)",
          "thicknessM": 0.2,
          "ref": "ifc://DS3_TalTech_V4.ifc#158478"
        },
        "elements": 58
      },
      {
        "key": "wall__architectural_159171_type",
        "group": "wall",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#159171",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#159171",
        "materialNames": [
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          "Betoon C30/37"
        ],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#617033",
        "basis": "type",
        "assemblyName": "Basic Wall:VS-03 sisesein ülemine",
        "representativeLayer": {
          "name": "EPS(1)",
          "thicknessM": 0.25,
          "ref": "ifc://DS3_TalTech_V4.ifc#159169"
        },
        "elements": 6
      },
      {
        "key": "wall__architectural_159649_type",
        "group": "wall",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#159649",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#159649",
        "materialNames": [
          "EPS",
          "R/B(2)"
        ],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#617034",
        "basis": "type",
        "assemblyName": "Basic Wall:VS-03 sisesein",
        "representativeLayer": {
          "name": "EPS",
          "thicknessM": 0.25,
          "ref": "ifc://DS3_TalTech_V4.ifc#159647"
        },
        "elements": 4
      },
      {
        "key": "wall__architectural_160823_occurrence",
        "group": "wall",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#160823",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#160824",
        "materialNames": [
          "Columbia Kivi(1)"
        ],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#615672",
        "basis": "occurrence",
        "assemblyName": "Basic Wall:Columbia kivi - 190",
        "representativeLayer": {
          "name": "Columbia Kivi(1)",
          "thicknessM": 0.19,
          "ref": "ifc://DS3_TalTech_V4.ifc#160822"
        },
        "elements": 1
      },
      {
        "key": "wall__architectural_160931_occurrence",
        "group": "wall",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#160931",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#160932",
        "materialNames": [
          "R/B(4)"
        ],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#615673",
        "basis": "occurrence",
        "assemblyName": "Basic Wall:SS-01*",
        "representativeLayer": {
          "name": "R/B(4)",
          "thicknessM": 0.232,
          "ref": "ifc://DS3_TalTech_V4.ifc#160930"
        },
        "elements": 1
      },
      {
        "key": "wall__architectural_158479_type",
        "group": "wall",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#158479",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#158479",
        "materialNames": [
          "R/B(5)"
        ],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#617032",
        "basis": "type",
        "assemblyName": "Basic Wall:SS-01",
        "representativeLayer": {
          "name": "R/B(5)",
          "thicknessM": 0.2,
          "ref": "ifc://DS3_TalTech_V4.ifc#158478"
        },
        "elements": 24
      },
      {
        "key": "wall__architectural_162621_type",
        "group": "wall",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#162621",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#162621",
        "materialNames": [
          "Betoon(1)"
        ],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#617037",
        "basis": "type",
        "assemblyName": "Basic Wall:SS-17",
        "representativeLayer": {
          "name": "Betoon(1)",
          "thicknessM": 0.3,
          "ref": "ifc://DS3_TalTech_V4.ifc#162620"
        },
        "elements": 1
      },
      {
        "key": "wall__architectural_162621_occurrence",
        "group": "wall",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#162621",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#163304",
        "materialNames": [
          "Betoon(1)"
        ],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#615681",
        "basis": "occurrence",
        "assemblyName": "Basic Wall:SS-17",
        "representativeLayer": {
          "name": "Betoon(1)",
          "thicknessM": 0.3,
          "ref": "ifc://DS3_TalTech_V4.ifc#162620"
        },
        "elements": 1
      },
      {
        "key": "wall__architectural_168066_occurrence",
        "group": "wall",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#168066",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#168067",
        "materialNames": [
          "Õhuvahe",
          "Õhuvahe",
          "Hüdroisolatsioon",
          "Soojustus",
          "Aurutõke",
          "R/B(1)"
        ],
        "relationRef": "ifc://DS3_TalTech_V4.ifc#615698",
        "basis": "occurrence",
        "assemblyName": "Basic Wall:VS-08",
        "representativeLayer": {
          "name": "Soojustus",
          "thicknessM": 0.22,
          "ref": "ifc://DS3_TalTech_V4.ifc#168063"
        },
        "elements": 3
      },
      {
        "key": "wall__architectural_171546_occurrence",
        "group": "wall",
        "sourceRole": "architectural",
        "status": "layer_set",
        "assemblyRef": "ifc://DS3_TalTech_V4.ifc#171546",
        "materialRef": "ifc://DS3_TalTech_V4.ifc#171547",
        "materialNames": [
          "Betoon C35/45(1)"
        ],
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}
