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Pre-construction termite barriers

Securing your investment from the ground up, this page is designed specifically for builders, developers, and owner-builders. Unlike standard emergency pest control services, our focus here is on proactive risk mitigation and strict regulatory compliance with Australian Standards. By integrating robust defensive systems during the structural construction phase, we ensure your project is fortified against termite entry from the very beginning.

During the construction of a residential or commercial structure, implementing proactive management methods is the most effective way to mitigate the risk of termites finding a concealed entry into the finished building. Incorporating defensive systems before the concrete slab is poured ensures that vulnerable structural elements are managed correctly against subterranean threats from day one.

Concrete slab construction standards

Concrete slabs function as an excellent foundational layer, but their long-term effectiveness depends heavily on engineering quality:

Termites are exceptionally resilient insects that can exploit concrete cracks as small as 1.5mm wide to gain concealed entry into a structure.

To minimise the risk of structural cracks developing over time, all slabs should be constructed strictly in accordance with the guidelines set out in AS2870 (residential slabs and footings).

We always recommend that slabs follow this exact regulatory standard to support the building's long-term defence against underground entry points.

Visual inspection zone

Termites frequently attempt to navigate over the top of foundations or search for tiny gaps in external walls.Termites frequently attempt to navigate over the top of foundations or search for tiny gaps in external walls.

  • Exposed Edge Protocol: To counter this pathway, we recommend leaving the foundation edge exposed by at least 75mm during the build.
  • Obvious Visual Tracking: Leaving this specific gap clear creates an unobstructed visual inspection zone.
  • Early Detection: This configuration ensures that any termite mudding or tracking paths can be easily identified during regular professional reviews before they can access internal timbers.

 

Modern under-slab management systems

To address high-risk internal structural points, flexible physical products embedded with a repellent termiticide are integrated directly into the built environment:

  • Pipe Penetration Collars: Specialised plastic collars are fitted securely around all pipes that penetrate the concrete slab, which represent primary entry risk zones.
  • Slab Edge Sheeting: Resilient plastic sheeting containing repellent chemistry is applied carefully along critical slab edges and perimeter junctions.
  • Deterrence Strategy: These components are designed to push foraging termites out into the open, forcing them into areas where they can be easily seen during standard inspections.
  • Full Sub-Slab Coverage: If a concrete slab is not constructed strictly to AS2870, the entire surface area underneath the slab may need to be completely covered with

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Frequently asked questions

AS2870 sets out precise engineering steps designed to minimise the risk of concrete slabs cracking as a building settles over time. Because termites can navigate through gaps as narrow as 1.5mm, a slab built strictly to this standard provides an excellent foundational layer of defence.

Leaving a 75mm exposed edge creates an obvious visual inspection zone. It does not stop termites from trying to cross the foundation, but it forces them out of hidden cavities so their mud leads can be easily identified during regular inspections.

If the concrete slab is constructed to AS2870, the two primary risk areas are around service pipes that penetrate the slab and along the outer slab edge. Repellent plastic collars and sheeting are installed precisely at these locations during construction.

If a slab is not constructed to AS2870, the risk of unpredictable cracking is higher. In these specific scenarios, installing localized edge systems is insufficient, and the entire area underneath the slab may need to be covered with treated management sheeting to mitigate risks.

No. Pre-construction management systems are designed to mitigate hidden entry risks and push termites into open view. To maintain regulatory compliance and support long-term property care, completed structures must still undergo regular professional inspections at least every twelve months.

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