The installation of termite barriers during construction is an integral part of any building process, whether it is a small renovation or large development.
Sherlock Pest Control specialises in and understands termite control during construction. We offer free advice and quotations, either send us a copy of your plans or arrange a site visit.
If you are a builder or owner/builder, you need to understand what is required in relation to termite control for new buildings and the extension or alteration to existing buildings. You will also need to know what alternatives are available to meet these requirements.
The termite control requirements are set out in the Building Code of Australia (BCA) and Australian Standard AS3660.
In simple terms, the BCA/ AS3660 requires that the wall, roof and floor framing (structural elements) and door jambs, window frames and reveals, architraves and skirting of all new buildings be protected to reduce the risk of termite infestation. The BCA sets out the minimum requirements only, while things like the contract and consumer choice may dictate a higher level of termite control.
To understand what the minimum requirement is under the BCA, and to decide on a preferred termite control system, you should consider the following important questions before proceeding with building work:
Is the building in an area where there is a risk of termite attack?
In NEW SOUTH WALES, virtually every area is susceptible to termite attack, so the answer inevitably is ‘yes’, and you will need to go to the next question.
Will there be any members such as wall, roof and floor framing, door jambs, window frames, reveals, architraves or skirting susceptible to termite attack?
If the answer is ‘no’ (e.g., if termite resistant materials have been used for the above members), then, subject to any other contractual requirements, there is no obligation under the BCA to provide further termite control but remember, the rest of the building will still be unprotected and at risk of damage by termites which are quite happy to devour cabinets, wall linings and sheathing of electrical wiring.
If your structure does have susceptible members then termite control is mandatory.
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What method of termite control will I choose?
Sherlock Pest Control offers a range of products to best suit a particular project.
In the broadest terms, a number of options are available with varying costs, durability and maintenance requirements. They include:
·Using a monolithic concrete slab as part of the termite control system and another approved method to protect any penetrations such as waste pipes, etc. (the slab edge may be exposed in this method);
· Approved chemicals under slab and around the perimeter of the building on completion. NOTE: The ability to replenish a chemical under a concrete slab will need to be taken into consideration where the life of the chemical is significantly different to that of the building. This may require reticulation of an approved chemical under the slab with a perimeter treatment.
· Physical barriers such as Kordon or Granitgard.
· The incorporation of termite resistant materials such as naturally termite resistant timber, treated timber, masonry, steel, concrete or fibre-reinforced cement;
· A combination of the above, especially if your home features a number of different types of construction or is a split-level home; or
·Other approved systems.
· Permanent Notice on the Building: What is required?
The BCA requires a durable notice to be permanently fixed to the building in a prominent place. This is usually in the electrical meter box
The notice must indicate:
· the method/s of termite protection used on the building; and the date of the installation; and where chemicals are used, the life expectancy listed on the National Registration Authority label; and the installer's or manufacturer's recommendations for the scope and frequency of future inspections for termite activity.
REMEMBER - The key to avoiding damage by subterranean termites is to:
· Choose a termite control system to suit your preferences and the needs of the type of construction;
· Understand the system of termite control and maintenance requirements for your individual building; and Inspect regularly yourself, and each 12 months (more often in high hazard areas) have a licensed pest control company inspect and report. Undertake retreatment as recommended.
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