Inadequate clearances causing dry-rot, in the Pullenvale area, a Western suburb of Brisbane,

Inspected by Peter Weddell, owner/operator of Qld Home Buyers Inspection Service and Queensland Building Inspection Service, QBIS.

Inadequate clearances causing dry-rot

Lack of appropriate ventilation also insufficient clearances between timber and soil causing dry rot.

Although there was no access below the floor to allow for assessment of other associated problems. Rusting of the flooring nails is usually a strong indicator of serious problems occuring, below the flooring.

Important note:

This does not occur from mopping of the floor, as some sellers would want you to believe!

Inadequate clearances between timber and soil causing dry-rot


  • Dry rot (destruction of sub-floor timber fibres).
  • High probability of attracting termites.
  • Possibly cause health problems with inhabitants of the house
  • Significant cost of replacing timber and rectification to avoid these continuing and serious problems.
  • Reduce selling price, possibly considerably.
  • May affect resale when identified by a competent building inspector.

These problems are inherent with this era and type of house due to the method of construction used when the house was built.


  • Remove all timber (any remaining timber is likely to cause ongoing problems).
  • Create appropriate clearances between soil and timber.
  • Fit sufficient cross flow ventilation.
  • Check for seepage and rising damp.
  • Ensure proper drainage is fitted.

Unfortunately these major defects cannot be economically and effectively rectified without removing all of the sub-floor structure and having it rebuilt.

For independent Building Inspections Brisbane in all suburbs, Qld Home Buyers Inspection Service.