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Five to Six Star : Five to Six Star
3 Introduction The mandatory 6 Star domestic housing regulations have been added to the Building Code of Australia 2010. These regulations are expected to take effect in Victoria in May 2011. The new regulations are a response from the National Strategy on Energy Efficiency. A number of these strategies focus on: assisting households and businesses to transition to a low-carbon future, reducing impediments to the uptake of energy efficiency and making buildings more energy efficient. Through the use of practical examples this booklet helps to clarify what these changes will mean to builders for new house construction. Ten sets of house plans of a variety of types and sizes were examined, including slab and suspended timber floor construction. The plans were rated using First Rate 5 software, to determine what would be required to increase the rating from the current 5 Star requirement to 6 Star, using the most cost effective methods. The possible methods were considered from the perspective of a builder with limited scope to alter the design.