6 Star Energy Rating
We are accredited to complete house energy ratings in all Australian states and territories (except ACT), and issue the NatHERS (Nationwide House Energy Rating Scheme) certificate required by the relevant building surveyor before a building permit is granted. We also provide a complete energy report as part of the service, including lighting performance and other requirements of the National Construction code Volume 2 part 3.12.
What sets us apart is our knowledge and expertise in passive design and thermal modelling, and the fact that we are locally based and have chosen to complete all the services in-house for their added value. we coordinate with our client sat every step of the process to ensure a satisfactory building process from design to handover. Passive design elements, including: orientation, window to wall ratio, windows placement, thermal mass, shading, building form, internal layout... are amongst the most important features allowing the building to achieve 6 star or even more ambitious target. |
Part 3.12 DTS
Another method, besides using a house energy rating software, to achieve energy efficiency compliance, is to elementally address the provisions of the building code volume 2 part 3.12. This method requires that all the elements in a house or apartment, such as walls, floor, ceiling, and openings…etc. comply with criteria set out in the building code, all related to energy efficiency. The deemed to satisfy (DTS) method is sometimes used on new buildings but more likely on extensions and building alternations.
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Verification Method V2.6.2.2
In some situations where the elemental provisions and/or the energy rating software cannot demonstrate compliance with the required minimum performance for a class 1 buildings, a verification method is used to meet the regulation requirements. This method is rarely used because a house normally gets over the line by using the other methods. This procedure involves the use of a thermal modelling software other than those used for NatHERS, where a comparison in heating and cooling loads is made between a reference and a proposed building. The verification method surfaces when the limitation of the national house energy rating software cannot demonstrate the benefits of a specific building element or technology, such as when using some innovative technologies or non-conventional construction methods, examples such as heat recovery ventilation, excellent building sealing, solar chimney, tromp wall, phase change materials...etc.
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BASIX
Residential buildings in NSW require a Building Sustainability Index (BASIX) certificate for Development Application (DA), Construction Certificate (CC), Complying Development Certificate (CDC) and Occupation Certificate. BASIX is an online sustainability assessment tool that replaces the building code volume 2 part 3.12 and, apart from building fabric, complements the energy efficiency by addressing thermal comfort as well as other energy demanding services along with water efficiency.
Our BASIX report clearly identifies what project implementations are required for compliance, we also complete an accredited thermal performance assessment and produce the NatHERS certificate required for the thermal comfort input within the tool.
Our BASIX report clearly identifies what project implementations are required for compliance, we also complete an accredited thermal performance assessment and produce the NatHERS certificate required for the thermal comfort input within the tool.