Pole foundations – bearer and/or joist damage/deterioration

Cause

Timber sizes were too small for the span/loading

Repair

  • remove and replace defective timber. Use timber with the correct hazard class treatment level:
    • H1.2 – protected from weather but exposed to ground atmosphere
    • H5 – ground contact

Cause

Timber has rotted

Repair

  • remove and replace defective timber. Use timber with the correct hazard class treatment level:
    • H1.2 – protected from weather but exposed to ground atmosphere
    • H5 – ground contact

Cause

There is borer infestation in timber

Repair

  • remove and replace defective timber. Use timber with the correct hazard class treatment level:
    • H1.2 – protected from weather but exposed to ground atmosphere
    • H5 – ground contact

Cause

There is excessive notching or drilling through the timber for pipes or wiring

Repair

  • strengthen the defective timber by:
    • fixing a new timber member beside the existing
    • fixing plates to each side of defective section of timber
  • Use timber with the correct hazard class treatment level:
    • H1.2 – protected from weather but exposed to ground atmosphere
    • H5 – ground contact

Cause

The floor is overloaded

Repair

  • strengthen the defective timber by:
    • fixing a new timber member beside the existing
    • fixing plates to each side of defective section of timber
  • Use timber with the correct hazard class treatment level:
    • H1.2 – protected from weather but exposed to ground atmosphere
    • H5 – ground contact