Timber floorboards, particleboard or plywood springy

Cause

Span is too great for the size of joists, bearers or flooring 

Repair

  • provide additional joist support by installing extra piles and bearers as required

Cause

Joists are cracked or broken

Repair

  • strengthen damaged joists by fixing a new joist to the damaged joist; alternatively fix plates to each side of damaged joist

Cause

Floor has been regularly sanded which has reduced thickness

Repair

  • replace defective flooring 

Cause

Water damage to flooring or subfloor framing

Repair

  • replace defective flooring - check for high subfloor moisture levels or building leaks that are causing the damage 

Cause

Rotted piles

Repair

  • replace piles with H5-treated timber piles or precast concrete piles
  • insert uncut end of new timber piles into pile hole
  • provide lateral support (bracing) as required
  • repiling work will require a building consent

Cause

Borer damage

Repair

  • replace damaged boards

Cause

Inadequately supported piles

Repair

  • install additional piles and bearers as required