JV3 is an alternative solution (also known as energy performance solution) for non-residential structures when attaining energy compliance is impossible or costly with the ‘Deemed-to-Satisfy’ (DTS) method. JV3 assessment is similar to modelling residential dwellings for thermal comfort compliance using NatHERS software. The JV3 method involves a reference DtS building to compare the total energy utilisation to that of the new commercial development. The annual energy consumption of both buildings is calculated using simulation software. The software must be approved by ABCB (Australian Building Codes Board) Protocol for Building Energy Analysis. Section J compliance is attained only when the annual energy consumption of the proposed commercial development is less than the reference DtS building. When Do You Require JV3 Assessment?A JV3 verification can be helpful in the following situations:
Fortunately, even when DtS compliance methods make it challenging to attain energy compliance standards, the JV3 assessment can be a good alternative. Before we discuss the benefits of the JV3 verification method, let’s understand how the process (energy compliance solutions) works. How Does JV3 Modelling (Energy Compliance Solutions) Work?The National Construction Code (commonly known as NCC) has standardised construction/glazing levels to attain compliance. However, the NCC allows certain flexibility. You can justify and elaborate that your commercial construction has achieved a performance as good as the prescriptive method (DtS approach) using alternative assessment. In such cases, you can balance certain low-performing components such as glazing with high-performance design elements such as insulation. In simple words, you have the flexibility to swap building components to achieve energy compliance. JV3 assessment is applicable for
Commercial buildings include residential portions of hotels, offices, shops, restaurants, cafes, storage units, factories, hospitals, clinics and other public utility spaces. Pre-requisites for JV3 AssessmentTo prevent any poor quality outcomes, abusing the provisions and duplicacy, the NCC regulates certain aspects of the JV3 Performance Solution. These include:
What Are The Benefits Of the JV3 Assessment?Although the costing and the method of JV3 modelling might be more than DtS, it can be beneficial for the following reasons:
DtS is a simple and cost-efficient solution. But it doesn’t consider the following: Thermal interaction of building fabric materials.
All these elements play a critical role in improving the energy efficiency of the building. Thus the construction ends up becoming expensive. Connect with an expert building consultant to get started with the JV3 assessment of your commercial venture.
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