Topics: Building, Construction, Renewable energy Pages: 5 (1502 words) Published: August 5, 2013
CPCCBC4020A - Assessment - LA014506
Build thermally efficient & sustainable structures|


Question 1 3-5

Question 2 5-7

Question 3 7


In Australia, research for the Australian Sustainable Built Environment Council (ASBEC) suggests that the building sector is directly responsible for around 24% of the total energy use. At present this is split fairly evenly between the residential and commercial building sectors. Reducing energy use and reducing greenhouse gas emissions are both worthwhile goals as it saves money and saves the environment. Reducing greenhouse gas (GHG) emissions has been presented with increasing urgency within recent years as it is driving climate change. There are many opportunities to reduce energy and emissions within the building sector. Governments and industry groups are preparing for enhanced energy efficiency. Some matters are currently required by the Building Code of Australia (BCA 5 star, BASIX for NSW) & others are becoming so. (eg. NABERS Energy) Along with these mandatory regulations voluntary schemes are also available. (Green Star, GreenPower). Below I will discuss these mandatory legislative & planning requirements as well as optional solutions for thermal efficiency. In Australia, there are currently two building regulations to control the efficiency of design for a new home or renovation: Building Codes of Australia (BCA) - Under the current BCA, all new homes in Australia (except New South Wales) are to be designed to be rated at 6 stars for thermal efficiency. A BCA Section J Report is required by local councils and building authorities when applying for a building permit or Construction Certificate (CC). The BCA Section J Report is a document which shows how the proposed building complies with the relevant Energy Efficiency requirements of the Building Code of Australia (BCA). BCA Section J Report includes:

Part J1|  | Building FabricThe building envelope must meet minimum total R-Value requirements| Part J2|  | GlazingAggregate air-conditioning value attributable to glazing must not exceed nominated allowances| Part J3|  | Building SealingSealing requirements for chimneys, flues, exhaust fans, building elements, windows and doors| Part J4|  | Not applicable|

Part J5|  | Air-conditioning and Ventilation SystemsRequirements for air-conditioning and ventilation systems| Part J6|  | Artificial Lighting and PowerRequirements for lighting and power energy consumption| Part J7|  | Hot Water Supply and Swimming Pool and Spa Pool PlantMinimum requirements for hot water systems, swimming pools and spas| Part J8|  | Access for Maintenance and Facilities for MonitoringMaintenance requirements and monitoring of energy consumption for larger buildings|

Building Sustainability Index (BASIX) - In New South Wales, all new homes are required to pass BASIX. BASIX scores water, energy and thermal comfort. BASIX is a planning initiative of the NSW Government that requires all new dwellings to be designed and built to achieve a 40% reduction in water consumption and 40% reduction in greenhouse gas emissions compared to the average dwelling. That is, new dwellings have to use less water and be more energy efficient. Similar to the BCA section J report, a BASIX report must submitted as part of the DA. There are three metrics that are being evaluated in order to get a BASIX certificate BASIX water

In order to get a BASIX certificate for a new dwelling in NSW the average water consumption of that dwelling must not exceed the target specified in the BASIX online tool. BASIX thermal comfort
This category of the BASIX deals with the evaluation of the...
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