This Standard sets out requirements for the design and construction of subterranean termite(‘termites’) management systems for new buildings and ground level extensions or renovations. It includes performance criteria, general requirements and deemed-to-satisfy solutions for both physical and chemical termite barriers throughout mainland Australia. A range of options is provided so that barriers may be used either singly, or in combination, to provide an integrated termite barrier system.The Standard includes methods to deter concealed entry by termites from the soil to the building above the termite barrier system.A TERMITE BARRIER SYSTEM CONSTRUCTED IN ACCORDANCE WITH THIS STANDARD CANNOT PREVENT TERMITE ATTACK, AS BARRIERS MAY BE BRIDGED OR BREACHED. WHERE TERMITES BRIDGE BARRIERS THEEVIDENCE MAY BE DETECTED DURING INSPECTIONS.NOTE: The diagrams used in this Standard are indicative only and are deemed to meet theperformance criteria outlined in Section 2. The diagrams apply to domestic constructiontechniques; however, they may be applied to other forms of construction and interpolation may berequired. Some diagrams may have construction details such as damp proof courses, vapourbarriers, and the like, omitted for clarity.This Standard does not apply to the following:(a) The treatment of existing buildings (see Note 1).(b) Drywood termite infestations. The systems described herein will not be effectiveagainst concealed access by drywood termites nor termite nests established without soil contact.(c) Durability, maintenance and inspection procedures or details. These are outside thescope of this Standard.NOTES:1 The treatment of existing buildings is covered in AS 3660.2.2 Issues such as the detection of termite infestation, and the necessity and accessibility for regular, competent inspections can be found in AS 3660.2. It is recommended that access forinspection, maintenance and durability issues are considered as part of the design process.3 It is stressed that the installation of a termite barrier system does not negate the need for regular competent inspections after installation.4 Activities such as turfing, paving and landscaping adjacent to the building might compromise the inspection zone clearances required throughout the Standard. Where it is known that these activities will be undertaken, the clearances given in the Standard may need to be increased to maintain the required minimum inspection zones.5 Barrier systems will not be effective where the nest is established inside the building and hasno contact with the soil.
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