Termites - 1 in every 4 homes

Termites are the cause of the greatest economic loss of timber in service in Australia. Independent data compiled by State Forests show 1 in every 4 homes are attacked by termites at some stage in their life. Australia’s subterranean termite species (white ants) are the most destructive timber pests in the world.

The most destructive species live in large underground nests containing several hundred thousand timber-destroying insects. The problem arises when a nest matures near your home which provides a natural shelter and food source for termites. The gallery system of a single termite colony may exploit food sources over as much as one hectare, with individual galleries extending up to 50 meters or more to enter your home.

Concrete slabs do not act as a barrier as termites can penetrate cracks through the slab or over the slab edge. Once in contact with the timber they can excavate it often leaving only a thin veneer on the outside. If left undiscovered the pecies can cause many thousands of dollars damage and can prove costly to treat.

Termites and concrete slabs

Homes constructed on concrete slabs pose problems with respect to detecting termite attack. If the edge of the slab is concealed by garden beds, lawns, paths, pavers or any other obstructions, then it is possible for termites to gain concealed entry to the property. They can then cause extensive damage to concealed framing timbers before being detected.

Even the most experienced inspector may be unable to detect their presence due to concealment by wall linings or other obstructions. Only when the termite attack timbers in the roof void, which may be concealed by insulation, or some other visible timbers, can their presence be detected. Where termite damage is located in the roof, it should be expected that concealed framing timbers (if present) may be extensively damaged.

With a concrete slab home (part or full) it is imperative that you expose the edge of the slab. This may involve the excavation of soil or the complete removal of garden beds, paths, pavers or other features which concealed the slab edge. It is recommended that at least 75mm of the slab edge above ground level remain exposed at all times to facilitate the detection of termite entry. Weep holes must always be kept free of obstructions at all times.