{
  "url": "https://openlegislation.uk/eu-decision-2006-673/annex",
  "json_url": "https://openlegislation.uk/eu-decision-2006-673/annex.json",
  "legislation": "eudn/2006/673",
  "legislation_title": "Commission Decision of 5 October 2006 amending Decision 2003/43/EC establishing the classes of reaction-to-fire performance for certain construction products as regards gypsum plasterboards (notified under document number C(2006) 4360) (Text with EEA relevance) (2006/673/EC)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2006-673",
  "path": "annex",
  "kind": "annex",
  "number": null,
  "heading": null,
  "text": "In the Annex to Decision 2003/43/EC, Table 2 and the note is replaced by the following:\n‘\nTABLE 2\nClasses of reaction — to — fire performance of gypsum plasterboards\nDetermined according to EN ISO 536 and with no more than 5 % organic additive content.\nClasses as provided for in Table 1 of the Annex to Commission Decision 2000/147/EC.\nGypsum plasterboard\nNominal board thickness (mm)\nGypsum core\nPaper grammage(g/m2)\nSubstrate\nClass (excluding floorings)\nDensity (kg/m3)\nReaction to fire class\nConforming to EN 520 (except perforated boards)\n≥ 6,5 < 9,5\n≥ 800\nA1\n≤ 220\nAny wood-based product with density ≥ 400 kg/m3 or any product of at least class A2-s1, d0\nA2-s1, d0\n> 220 ≤ 320\nB-s1, d0\n≥ 9,5\n≥ 600\n≤ 220\nAny wood-based product with density ≥ 400 kg/m3 or any product of at least class A2-s1, d0 or any insulating product of at least class E-d2 mounted according to method 1\nA2-s1, d0\n> 220 ≤ 320\nB-s1, d0\nNote:\nMounting and fixing\nThe gypsum plasterboards (hereinafter — “gypsum boards”) shall be mounted and fixed using one of the three following methods:\nMethod 1 — Mechanically fixed to a supporting substructure\nThe gypsum boards, or (in the case of multi-layer systems) at least the outermost layer of boards, shall be mechanically fixed to a metal substructure (made from components detailed in EN 14195) or to a timber substructure (in accordance with EN 336 and EN 1995-1-1).\nWhen the substructure provides supporting members in one direction only, the maximum span between the supporting members shall not exceed a dimension equal to 50 times the thickness of the gypsum boards.\nWhen the substructure includes supporting members in two directions the maximum span in either direction shall not exceed a dimension equal to 100 times the thickness of the gypsum boards.\nThe mechanical fixings shall be screws, staples or nails, which shall be fixed through the thickness of the gypsum boards into the substructure at centres not exceeding 300 mm measured along the length of each supporting member.\nBehind the gypsum boards may be an air space, or an insulating product. The substrate may be:\n(a) any wood-based product with density ≥ 400 kg/m3 or any product of at least class A2-s1, d0 in case of gypsum boards of ≥ 6,5 mm and < 9,5 mm nominal thickness and ≥ 800 kg/m3 core density, or\n(b) any wood-based product with density ≥ 400 kg/m3 or any product of at least class A2-s1, d0 in case of gypsum boards of ≥ 9,5 mm nominal thickness and ≥ 600 kg/m3 core density, or\n(c) any insulating material of at least class E-d2 in case of gypsum boards of ≥ 9,5 mm nominal thickness and ≥ 600 kg/m3 core density.\nEach joint between adjoining gypsum boards shall have a gap width ≤ 4 mm. This provision applies for any joint regardless of that the joint is or is not supported directly by a substructure supporting member and regardless of that the joint is or is not filled with a jointing material.\nIn cases (a) and (b) each joint between adjoining gypsum boards, which is not supported directly by a substructure supporting member and which has a gap width > 1 mm, shall be fully filled with a jointing material as specified in EN 13963 (the other joints may remain unfilled).\nIn case (c) all joints between adjoining gypsum boards shall be fully filled with a jointing material as specified in EN 13963.\nMethod 2 — Mechanically fixed to a solid wood-based substrate\nThe gypsum boards shall be mechanically fixed to a solid wood-based substrate with density ≥ 400 kg/m3.\nThere shall be no cavity between the gypsum boards and the substrate.\nThe mechanical fixings shall be screws, staples or nails. The distance between the mechanical fixings shall correspond to the rules given above for method 1.\nEach joint between adjoining gypsum boards shall have a gap width ≤ 4 mm and may remain unfilled.\nMethod 3 — Mechanically fixed or bonded to a solid substrate (dry lining system)\nThe gypsum boards shall be fixed directly to a solid substrate with a reaction to fire classification of at least class A2-s1, d0.\nThe gypsum boards may be fixed using screws or nails fixed through the thickness of the gypsum boards into the solid substrate or may be bonded to the substrate using “dabs” of a gypsum based adhesive as specified in EN 14496.\nIn either case the screw or nail fixings or the adhesive “dabs” shall be positioned at maximum 600 mm vertical and horizontal centres.\nAll joints between adjoining gypsum boards may remain unfilled.’",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "Determined according to EN ISO 536 and with no more than 5 % organic additive content."
    },
    {
      "type": "footnote",
      "label": "f2",
      "text": "Classes as provided for in Table 1 of the Annex to Commission Decision 2000/147/EC."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2006/673/annex",
    "retrieved_at": "2026-11-01T15:17:28.847504+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}