Western Australian Consolidated Acts Western Australian Consolidated Acts (1) The Building Code
Volume Two Appendix A Contents on page 621 is amended by deleting
the box and the words in it and adding instead —
“
WESTERN AUSTRALIA
Application of Western Australian additions
WA 1 — Hot Water Systems
WA 1.1 Performance Provision
WA 1.1.0 Performance requirement
WA 1.2 Deemed-to-Satisfy Provision
WA 1.2.0 Hot water system standard
WA 1.3 Acceptable Construction Practice
WA 2 — Water Use
WA 2.1 Definitions
WA 2.1.0 Definitions
WA 2.2 Performance Provisions
WA 2.3 Performance Requirement
WA 2.3.0 Water use efficiency
WA 2.3.1 Water loss prevention
WA 2.3.2 Hot water use efficiency
WA 2.4 Deemed-to-Satisfy Provision
WA 2.4.0 Water use efficiency
WA 2.4.1 Swimming pool covers and
blankets
WA 2.4.2 Hot water use efficiency
WA 2.5 Acceptable Construction Practice
”.
(2) The Building Code
Volume Two Appendix A Western Australia Additions (page 623) is
amended by deleting “Western Australia has no additions to the Housing
Provisions.” and adding instead —
“
Application of Western Australian additions
This Appendix contains
additional provisions for application in Western Australia as follows:
|
WA 1 — HOT WATER SYSTEMS |
WA 1.1 PERFORMANCE PROVISION
WA 1.1.0 Performance requirement
A building’s hot
water system including any associated components must produce low levels of
greenhouse gases when heating water.
WA 1.2 DEEMED-TO-SATISFY PROVISION
WA 1.2.0 Hot water system standard
A hot water system
must be one of the following —
(a) a
solar hot water system that —
(i)
complies with AS 2712-2002; and
(ii)
has been tested in accordance with AS 4234-1994; and
(iii)
achieves a minimum energy saving of 60% for a hot water
demand level of 38 MJ per day for climate zone 3;
(b) a
gas hot water system that —
(i)
complies with AS 4552-2005; and
(ii)
achieves a minimum energy rating of 5 stars in
accordance with AS 4552-2005;
(c) a
heat pump hot water system that —
(i)
complies with AS 2712-2002; and
(ii)
has been tested in accordance with AS 4234-1994; and
(iii)
achieves a minimum energy saving of 60% for a hot water
demand level of 38 MJ per day for climate zone 3.
WA 1.3 ACCEPTABLE CONSTRUCTION PRACTICE
Compliance with
Deemed-to-Satisfy provision of WA 1.2.0 satisfies the Performance
Requirement WA 1.1.0 for a building.
|
WA 2 — WATER USE |
WA 2.1 DEFINITIONS
WA 2.1.0 Definitions
The following
definitions are used in this part —
potable water means
water intended for human consumption supplied by the holder of an operating
licence within the meaning given in the Water Services Licensing
Act 1995 section 3.
WELS has the meaning
given in the Water Efficiency Labelling and Standards Act 2005 of the
Commonwealth section 7.
WA 2.2 PERFORMANCE PROVISIONS
Objective
The objective of these
provisions is to reduce water demand by —
(a)
using water efficiently; and
(b)
minimising water wastage.
Functional statement
To reduce potable
water demand a building is to be capable of —
(a)
using potable water efficiently; and
(b)
preventing excessive loss of potable water.
WA 2.3 PERFORMANCE REQUIREMENT
WA 2.3.0 Water use efficiency
A building must have
features that, to the degree necessary, facilitate the efficient use of
potable water appropriate to —
(a) the
geographic location of the building; and
(b) the
available potable water supply for the building; and
(c) the
function and use of the building.
WA 2.3.1 Water loss prevention
A building, including
any water holding structure, must have features that, to the degree necessary,
prevent the excessive loss of potable water appropriate to —
(a) the
geographic location of the building; and
(b) the
available potable water supply for the building; and
(c) the
function and use of the building; and
(d) the
effects of permanent features such as topography, structures and buildings.
WA 2.3.2 Hot water use efficiency
A building must have
features that, to the degree necessary, facilitate the efficient use of hot
water appropriate to —
(a) the
geographic location of the building; and
(b) the
available hot water supply for the building; and
(c) the
function and use of the building.
WA 2.4 DEEMED-TO-SATISFY PROVISION
WA 2.4.0 Water use efficiency
(a) All
tap fittings other than bath outlets and garden taps must be a minimum of 4
stars WELS rated.
(b) All
shower heads must be a minimum of 3 stars WELS rated.
(c) All
sanitary flushing systems must be a minimum of 4 stars WELS rated dual
flush.
WA 2.4.1 Swimming pool covers and
blankets
An outdoor private
swimming pool or spa associated with a Class 1 building must be supplied
with a cover, blanket or the like that —
(a) is
designed to reduce water evaporation; and
(b) is
accredited with the Smart Approved Watermark under the Smart Approved
Watermark Scheme governed by the Australian Water Association, the Irrigation
Association of Australia, the Nursery and Garden Industry Australia and the
Water Services Association of Australia.
WA 2.4.2 Hot water use efficiency
All internal hot water
outlets (such as taps, showers and washing machine water supply fittings) must
be connected to a hot water system or a recirculating hot water system with
pipes installed and insulated in accordance with AS/NZS 3500:2003:
Plumbing and Drainage, Part 4 Heated Water Services.
The pipe from the hot
water system or recirculating hot water system to the furthest hot water
outlet must not exceed 20 metres in length or 2 litres of internal
volume.
WA 2.5 ACCEPTABLE CONSTRUCTION PRACTICE
Compliance with all of
the Deemed-to-Satisfy provisions of WA 2.4.0 satisfies the
Performance Requirement WA 2.3.0 for a building.
Compliance with all of
the Deemed-to-Satisfy provisions of WA 2.4.1 satisfies the
Performance Requirement WA 2.3.1 for a building.
Compliance with all of
the Deemed-to-Satisfy provisions of WA 2.4.2 satisfies the Performance
Requirement WA 2.3.2 for a building.
”.
[Regulation 38I inserted in Gazette
21 Aug 2007 p. 4174-8.]