{
  "schema": 1,
  "about": "Named glazing products offered by the open-data glazing calculator (beta), and the inventory of the unmodified LBNL files under lbnl/. See lbnl/NOTICE.txt for the license notices and attribution.",
  "base": "lbnl/",
  "licenses": {
    "igdb": { "name": "CC BY-ND 4.0", "url": "https://creativecommons.org/licenses/by-nd/4.0/",
              "notice": "International Glazing Database (IGDB) Copyright (c) 2011, The Regents of the University of California, through Lawrence Berkeley National Laboratory (subject to receipt of any required approvals from the U.S. Department of Energy). All rights reserved.",
              "terms": "https://windows.lbl.gov/igdb-license", "verified": "2026-10-12" },
    "pywincalc": { "name": "BSD-style (LBNL)", "file": "lbnl/pywincalc/LICENSE" },
    "wce": { "name": "BSD-style (LBNL)", "file": "lbnl/wce/License.txt" }
  },
  "files": [
    { "path": "pywincalc/CLEAR_3.DAT", "sha256": "ffd6445dc2394dd26174e794a0d719a1ec1b17b8320d0ab7d8a3b6f4d990ab39", "bytes": 4512,
      "format": "igdb-text", "encoding": "windows-1252",
      "upstream": "https://github.com/LBNL-ETA/pyWinCalc/blob/a55b86617ed36fb527a750a34d9a93bc9830512a/examples/products/CLEAR_3.DAT",
      "licenses": ["pywincalc", "igdb"] },
    { "path": "pywincalc/CLEAR_6.DAT", "sha256": "33df6cc804cc55c9ddb268222a8ef9a6a6b65d9c205be2e857e7c0513e506967", "bytes": 4510,
      "format": "igdb-text", "encoding": "windows-1252",
      "upstream": "https://github.com/LBNL-ETA/pyWinCalc/blob/a55b86617ed36fb527a750a34d9a93bc9830512a/examples/products/CLEAR_6.DAT",
      "licenses": ["pywincalc", "igdb"] },
    { "path": "pywincalc/CLEAR5.LOF", "sha256": "e8be8080d9008992baf9f1f271c9877f1cae2f7e6eb29c5572030ff4055875d5", "bytes": 13813,
      "format": "igdb-text", "encoding": "windows-1252",
      "upstream": "https://github.com/LBNL-ETA/pyWinCalc/blob/a55b86617ed36fb527a750a34d9a93bc9830512a/examples/products/CLEAR5.LOF",
      "licenses": ["pywincalc", "igdb"] },
    { "path": "pywincalc/LOW-E_5.LOF", "sha256": "3be33fee007bfd502cd1663ea098c1b84f8c51ab107aa18711c25983bb232f27", "bytes": 14695,
      "format": "igdb-text", "encoding": "windows-1252",
      "upstream": "https://github.com/LBNL-ETA/pyWinCalc/blob/a55b86617ed36fb527a750a34d9a93bc9830512a/examples/products/LOW-E_5.LOF",
      "licenses": ["pywincalc", "igdb"] },
    { "path": "pywincalc/CSR42_3.afg", "sha256": "3bf8fdcd9dee42e7322e52b8518b6fcf70db727cecae8d2ce6f4e30e5925fd5e", "bytes": 18462,
      "format": "igdb-text", "encoding": "windows-1252",
      "upstream": "https://github.com/LBNL-ETA/pyWinCalc/blob/a55b86617ed36fb527a750a34d9a93bc9830512a/examples/products/CSR42_3.afg",
      "licenses": ["pywincalc", "igdb"] },
    { "path": "pywincalc/LICENSE", "sha256": "a0c248fb5de9f5244ac75df2649903a396d7f1119aa82ad7420ee77403331440", "bytes": 4487,
      "format": "license", "encoding": "ascii",
      "upstream": "https://github.com/LBNL-ETA/pyWinCalc/blob/a55b86617ed36fb527a750a34d9a93bc9830512a/LICENSE",
      "licenses": ["pywincalc"] },
    { "path": "wce/spectralSampleData.cpp", "sha256": "592531c96c1e18ca3966f0e4d4934ef9af428bdd9869e7016f7966eaa6e690f9", "bytes": 354034,
      "format": "wce-cpp", "encoding": "ascii",
      "upstream": "https://github.com/LBNL-ETA/Windows-CalcEngine/blob/1dedefaf88dd10c7820d920a2ded6e486f1fc672/src/helper/optical/spectralSampleData.cpp",
      "licenses": ["wce", "igdb"] },
    { "path": "wce/License.txt", "sha256": "a75c2e069b0b7cd9d03101800addee633c5bd34f1b688b9d6ac4ec6753e91929", "bytes": 3428,
      "format": "license", "encoding": "ascii",
      "upstream": "https://github.com/LBNL-ETA/Windows-CalcEngine/blob/1dedefaf88dd10c7820d920a2ded6e486f1fc672/License.txt",
      "licenses": ["wce"] }
  ],
  "products": [
    { "id": "igdb-102", "igdbId": 102, "name": "Generic Clear Glass", "manufacturer": "Generic",
      "type": "monolithic", "coatedSide": null, "thicknessMm": 3.048, "thicknessSource": "file header ({ Thickness } 3.048)",
      "file": "pywincalc/CLEAR_3.DAT", "class": "clear",
      "emissivity": { "source": "header", "front": 0.84, "back": 0.84 },
      "nameSource": "file header (Product Name, Manufacturer, NFRC ID)" },
    { "id": "igdb-103", "igdbId": 103, "name": "Generic Clear Glass", "manufacturer": "Generic",
      "type": "monolithic", "coatedSide": null, "thicknessMm": 5.715, "thicknessSource": "file header ({ Thickness } 5.715)",
      "file": "pywincalc/CLEAR_6.DAT", "class": "clear",
      "emissivity": { "source": "header", "front": 0.84, "back": 0.84 },
      "nameSource": "file header (Product Name, Manufacturer, NFRC ID)" },
    { "id": "igdb-9803", "igdbId": 9803, "name": "Optifloat™ Clear", "manufacturer": "Pilkington North America",
      "type": "monolithic", "coatedSide": null, "thicknessMm": 4.699, "thicknessSource": "file header ({ Thickness } 4.699)",
      "file": "pywincalc/CLEAR5.LOF", "class": "clear",
      "emissivity": { "source": "header", "front": 0.84, "back": 0.84 },
      "nameSource": "file header (Product Name, Manufacturer, NFRC ID)" },
    { "id": "igdb-913", "igdbId": 913, "name": "Float Glass (green, 5 mm; IGDB file GREEN_5.AFG)", "manufacturer": "AGC Glass Co. N.A.",
      "type": "monolithic", "coatedSide": null, "thicknessMm": 4.7752, "thicknessSource": "WCE test MultiPaneSpecular_NFRC913 (4.7752e-3 m)",
      "file": "wce/spectralSampleData.cpp", "record": "NFRC_913", "class": "tint",
      "emissivity": { "source": "ir", "computed": 0.837, "note": "both faces compute to 0.837, so both get 0.84 by the uncoated-face rule" },
      "nameSource": "IGDB release notes 114.0, https://windows-downloads.lbl.gov/software/IGDB/IGDBReleaseNotes-114.htm (record 913, file GREEN_5.AFG, \"Float Glass\", Monolithic, in the AGC section); WCE test MultiPaneSpecular_NFRC913",
      "note": "Identified by its IGDB file name only (GREEN_5.AFG); the release notes give the product name \"Float Glass\"." },
    { "id": "igdb-9923", "igdbId": 9923, "name": "Energy Advantage™ Low-E", "manufacturer": "Pilkington North America",
      "type": "coated", "coatedSide": "front", "thicknessMm": 4.7244, "thicknessSource": "file header ({ Thickness } 4.7244)",
      "file": "pywincalc/LOW-E_5.LOF", "class": "hard",
      "emissivity": { "source": "header", "front": 0.1579693, "back": 0.84 },
      "nameSource": "file header (Product Name, Manufacturer, NFRC ID, Coated Side)" },
    { "id": "igdb-2191", "igdbId": 2191, "name": "LoE 180 on 3mm Clear", "manufacturer": "Cardinal Glass Industries",
      "type": "coated", "coatedSide": "back", "thicknessMm": 3.0, "thicknessSource": "WCE unit test (3.0e-3 m)",
      "file": "wce/spectralSampleData.cpp", "record": "NFRC_2191", "class": "single",
      "emissivity": { "source": "ir", "reference": 0.068, "referenceSource": "IGDB release notes 114.0 (eb 0.068)" },
      "nameSource": "IGDB release notes 114.0, https://windows-downloads.lbl.gov/software/IGDB/IGDBReleaseNotes-114.htm (file LoE180-3.CIG); WCE test MultiPaneSpecular_2191_102" },
    { "id": "igdb-1042", "igdbId": 1042, "name": "Comfort Select R-42™ on Clear", "manufacturer": "AGC Glass Co. N.A.",
      "type": "coated", "coatedSide": "back", "thicknessMm": 3.18, "thicknessSource": "file header ({ Thickness } 3.18)",
      "file": "pywincalc/CSR42_3.afg", "class": "lowe",
      "emissivity": { "source": "header", "front": 0.84, "back": 0.04657817 },
      "nameSource": "file header (Product Name, Manufacturer, NFRC ID, Coated Side)",
      "classNote": "Sputtered low-e; the number of silver layers is not stated in the source." },
    { "id": "igdb-6046", "igdbId": 6046, "name": "IGDB 6046, coated low-e on 5.66 mm clear (product name not given in the source)", "manufacturer": "not given in the source",
      "type": "coated", "coatedSide": "back", "thicknessMm": 5.66, "thicknessSource": "WCE test MultiPaneSpecular_6046 (5.66e-3 m)",
      "file": "wce/spectralSampleData.cpp", "record": "NFRC_6046", "class": "double",
      "emissivity": { "source": "ir" },
      "nameSource": "WCE record NFRC_6046 and test MultiPaneSpecular_6046; the record is not listed in the IGDB 114.0 release notes",
      "classNote": "Double silver inferred from the spectrum (light-to-solar gain 1.85 in a clear double-glazed unit, emissivity 0.038), not stated by the source.",
      "note": "The product name and manufacturer are not given in the source." },
    { "id": "igdb-5439", "igdbId": 5439, "name": "Solarban® 70 glass, 6 mm", "manufacturer": "Vitro Architectural Glass (formerly PPG)",
      "type": "coated", "coatedSide": "back", "thicknessMm": 6.0, "thicknessSource": "nominal, from the IGDB file name \"Solarban 70_6.VTA\"",
      "file": "wce/spectralSampleData.cpp", "record": "NFRC_5439", "class": "triple",
      "emissivity": { "source": "ir" },
      "nameSource": "IGDB release notes 114.0, https://windows-downloads.lbl.gov/software/IGDB/IGDBReleaseNotes-114.htm (record 5439, file Solarban 70_6.VTA, \"Solarban® 70 glass\", 6mm); WCE test NFRC_5439_SB70XL_Colors_MultiPaneSpecular_FullSpectrum",
      "nameHistory": [
        { "file": "SB70XL Starphire_6.VTA", "name": "Solarban® 70XL on Starphire® 6mm" },
        { "file": "Solarban 70XL_6.VTA", "name": "Solarban® 70XL glass" },
        { "file": "Solarban 70_6.VTA", "name": "Solarban® 70 glass", "current": true }
      ],
      "substrateNote": "Low-iron substrate, inferred from the glass-side reflectance near 1050 nm." }
  ]
}