Plasterboard linings – cracking

Causes

Building movement; timber framing shrinkage

Joints not taped before apply stopping compound (joint taping was rarely done before 1975)

Land settlement 

Wind or earthquake shaking

Listed under: Interior, plaster and fibrous plaster, timber and wood-based, plasterboard, earthquakes, timber, framing, linings, walls, wind, solid plaster

Cause

Building movement; timber framing shrinkage

Repair

  • remove existing jointing material; apply tape to joints; stop with gypsum plaster stopping compound; sand and re-paint or re-wallpaper

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Cause

Joints not taped before apply stopping compound (joint taping was rarely done before 1975)

Repair

  • remove existing jointing material; apply tape to joints; stop with gypsum plaster stopping compound; sand and re-paint or re-wallpaper

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Cause

Land settlement 

Repair

  • remove existing jointing material; apply tape to joints; stop with gypsum plaster stopping compound; sand and re-paint or re-wallpaper
  • where a significant cracking occurs after an earthquake or as a result of land settlement, engage a chartered professional (structural) engineer to asses the damage and give repair options. For significant earthquake events such work may be done by EQC 

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Cause

Wind or earthquake shaking

Repair

  • you can download at no charge the BRANZ bulletin BU548 Repairing plasterboard after an earthquake
  • remove existing jointing material; apply tape to joints; stop with gypsum plaster stopping compound; sand and re-paint or re-wallpaper
  • where a significant cracking occurs after an earthquake or as a result of land settlement, engage a chartered professional (structural) engineer to asses the damage and give repair options. For significant earthquake events such work may be done by EQC 

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