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Plasterboard Specifications

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  • Thermal rating Under normal ambient temperatures, the "R" values for various thicknesses of plasterboard are as follows:
  • For foil backed plasterboard with foil facing an empty wall cavity add the following values to the above ratings:

  • Dimensional Stability


  • Under normal temperature and humidity conditions, plasterboard dimensional properties are as follows:
  • Thermal Coefficients of Linear Expansion = 16.2x10-6mm/(mm°C) –at temperature range 4°C to 38°C
  • Hygrometric Coefficient of Expasnsion = 7.2x10-6mm/mm/%RH – at 5% to 90% RH

  • Fire Hazard Properties


  • Early Fire Hazard Indices:

  • Cone Calorimeter Testing (ref. Amendment 13 to the BCA)

  • Safety and First Aid


  • Although there are no health hazards known in the normal use and application of plasterboard, the following precautions should be observed:

  • Avoid creating dust when handling plasterboard or mixing plaster products.
  • Reduced sanding by passing a wet sponge over the edge of the finished joints after trowelling.
  • If dry sanding is necessary and dust is created, provide adequate ventilation, wear eye protection and a disposable respiratory mask conforming to Australian/New Zealand Standard AS/NZS 1716:1994 Respiratory Protective Devices
  • Keep all construction materials and tools out of reach of children
  • vIf plaster compound or dust comes into contact with eyes - wash eyes thoroughly with water
  • If plaster compound or dust comes into contact with skin - wash skin thoroughly with soap and water
  • If plaster dust is inhaled - move to a fresh air environment
  • If plastering compound or dust is ingested - drink plenty of water

  • Refer Material Safety Data Sheets for more information on specific Boral Plasterboard products.