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| PART 3.1.3 | TERMITE RISK MANAGEMENT |
| Definitions |
The following definitions are used in this Part:
| Explanatory information: |
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The loads to which a building may be subjected are dead, live, wind, snow and earthquake loads. Further information on building loads can be found in AS 1170.1 or AS/NZS 1170.1. |
| STATE AND TERRITORY VARIATIONS |
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In Queensland delete definition of primary building element and replace with the following: Primary building element means— |
| (a) |
The requirements of this Part apply when a primary building
element of a Class 1 and 10 building is considered susceptible to termite
attack.
|
| (b) |
This Part does not apply to Class 1 and 10 buildings as follows (see
also Figure 3.1.3.1):
|
| (i) |
Buildings in areas where subterranean termites are not known to
present a potential risk of attack to the primary building elements of
the building.
|
| Explanatory information: |
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Termites are not considered to be a risk in Tasmania and a lesser risk in parts of Victoria. The appropriate authority may have records of termite activity for each area and may be able to advise you on whether termite risk management is needed. |
| (ii) |
Buildings that have all their primary building elements
constructed of one, or a combination of, the following materials:
|
| (iii) |
Buildings in Tasmania.
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| Explanatory information: |
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Where individual primary building elements are susceptible to termite attack and the remainder of the primary building elements are constructed of termite resistant materials, only the susceptible elements need to be provided with a termite barrier. |
| STATE AND TERRITORY VARIATIONS |
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3.1.3(b)(ii)(E) is replaced by the following clause in the Northern Territory (E) Naturally termite resistant timber in accordance with Appendix C of AS 3660.1 in areas where Mastotermes darwiniensis are not prevalent. |
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AppropriatePerformance Requirements: Where an alternative termite barrier or system is proposed as an Alternative Solution to that described in Part 3.1.3, that proposal must comply with— |
| A. Acceptable construction manual |
Performance Requirement P2.1 is satisfied for termite risk management if—
| (a) |
a termite barrier is installed in a Class 1 or 10 building to minimise
the risk of termite attack to primary building elements in accordance
with AS 3660.1—Termite management—New building work;
and
|
| (b) |
a durable notice is installed in accordance with
3.1.3.2(b).
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| STATE AND TERRITORY VARIATIONS |
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In the Northern Territory delete 3.1.3.0(b) and insert 3.1.3.0(b) and (c) as follows: |
| STATE AND TERRITORY VARIATIONS |
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In Queensland delete 3.1.3.0 and replace with the following: 3.1.3.0 Acceptable construction manual Performance Requirements P2.1 and P2.1.1 are satisfied for termite risk management if— |
| B. Acceptable construction practice |
Compliance with this Part satisfies Performance Requirement P2.1 for termite risk management.
| Explanatory information: |
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The intent of these requirements is to provide for a termite barrier that will ensure that termites will not enter a building by a concealed route. The installation of termite barriers will not stop termite activity from occurring on the site. |
| STATE AND TERRITORY VARIATIONS |
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3.1.3.1 is replaced by the following clause in the Northern Territory. Compliance with this Part satisfies Performance Requirement P2.1 for termite risk management provided that additional termite risk measures are used in areas where Mastotermes darwiniensis are prevalent. |
| STATE AND TERRITORY VARIATIONS |
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In Queensland delete 3.1.3.1 and replace with the following: 3.1.3.1 Application Compliance with this Part satisfies Performance Requirements P2.1 and P2.1.1 for termite risk management. |
| (a) |
A termite barrier or combination of barriers must be installed in
accordance with—
|
| (i) |
AS 3660.1; or
|
| (ii) |
3.1.3.3 for concrete slabs on ground; or
|
| (iii) |
3.1.3.4 for suspended floors.
|
| (b) |
A durable notice must be permanently fixed to the building in a
prominent location, such as in a meter box or the like, indicating—
|
| (i) |
the method of termite risk management; and
|
| (ii) |
the date of installation of the system; and
|
| (iii) |
where a chemical barrier is used, its life expectancy as listed on
the National Registration Authority label; and
|
| (iv) |
the installer’s or manufacturer’s recommendations for the scope and
frequency of future inspections for termite activity.
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| Explanatory information: |
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Durable notice A durable notice must be fixed to the building in a prominent location advising the building occupants that the system should be inspected and maintained. The notice should be clearly written, on a material that will not deteriorate or fade over time and be located in or near the meter box or similar location so that it can be easily seen and read by future owners of the building. Additional information may be included if desired by the person placing the notice. |
| STATE AND TERRITORY VARIATIONS |
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In Queensland delete 3.1.3.2 and replace with the following: 3.1.3.2 Installation of termite barriers |
| Explanatory information: |
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A “partial system” as referred to in Table 3.1.3.1 is one that when used in a combination with other systems, will form a “full system”. This is similar to 3.1.3.2 which refers to a “termite barrier or combination of barriers”. For example, if a concrete slab is used as a barrier, it in itself will not provide a complete barrier to termites. Then, depending on the construction methods and the site conditions, additional requirements will be necessary for service penetrations. Each of these are “partial” treatment, yet when integrated, will form a “full system”. In addition to the acceptable termite barriers described in Table 3.1.3.1, other methods or systems can be used if it can be demonstrated that they meet the relevant Performance Requirements of the Housing Provisions. Forms of evidence of suitability are described in Part 1.2—Acceptance of design and construction. |
| STATE AND TERRITORY VARIATIONS | ||||||||||||||||||||||||||||||||||||||||||||||
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In Queensland delete Table 3.1.3.1 and replace with the following:
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| (a) |
Where a concrete slab-on-ground is to be used as part of a termite
barrier system, the slab must be designed and constructed to comply with
AS 2870, and—
|
| (i) |
monolithic slabs must have penetrations and the perimeter of the
slab treated in accordance with
Table 3.1.3.1 (see
Figure 3.1.3.2); and
|
| (ii) |
non-monolithic slabs must have penetrations, control joints and the
perimeter of the slab treated in accordance with
Table 3.1.3.1 (see
Figure 3.1.3.3).
|
| (b) |
Slabs not constructed in accordance with AS 2870
must have the full area beneath the slab and the perimeter treated in
accordance with
Table 3.1.3.1.
|
| (c) |
The edge of a slab-on-ground may be used as a perimeter barrier
provided—
|
| (i) |
the slab edge is left exposed, not less than 75 mm above finished
ground level; and
|
| (ii) |
the face of the exposed edge is not rough or honeycombed and does
not contain ripples caused by folds in vapour barrier or the like that could
conceal termite activity; and
|
| (iii) |
the exposed surface is not rendered, tiled, clad or concealed by
flashing.
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The area beneath a suspended floor of a building must be treated—
| (a) |
by installing a barrier system in accordance with
Table 3.1.3.1; and
|
| (b) |
by providing sub-floor ventilation in accordance with
Part 3.4.1; and
|
| (c) |
where a barrier that needs to be inspected is installed, by providing
access to the area of the barrier that needs inspection in accordance with
AS 3660.1.
|
| (a) |
Attachments to buildings such as downpipes and service pipes must have
a gap to allow clear and uninterrupted visual inspection across the inspection
zone.
|
| (b) |
Structures such as steps, verandahs, porches, access ramps, carports,
trellises, decks, hot-water systems, airconditioners, or the like which are not
provided with one of the barrier systems described in this Part, must be
separated from the building by a gap of not less than 25 mm, to allow clear and
uninterrupted visual inspection across the inspection zone.
|
| (c) |
| (d) |
For the purposes of this clause, an inspection zone is an unobstructed
space which termites must cross or pass in order to gain access to a building
or structure and, as a consequence, reveal their presence during visual
inspection.
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| Explanatory information - Termites: |
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