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128 PROPOSAL TO REVISE ENERGY EFFICIENCY REQUIREMENTS OF THE BUILDING CODE OF AUSTRALIA FOR COMMERCIAL BUILDINGS Proposals include the removal of lighting timers and minor amendments to the specifications for a time switch, motion detector and a daylight sensor and dynamitic lighting control device. www.TheCIE.com.au
PROPOSAL TO REVISE ENERGY EFFICIENCY REQUIREMENTS OF THE BUILDING CODE OF AUSTRALIA FOR COMMERCIAL BUILDINGS 129 B Estimating economywide impacts The analysis in this report has employed a building blocks approach to aggregate data on individual sample buildings to economywide estimates. This appendix describes how this was conducted and the assumptions used in the process. Estimates of the amendments’ costs and benefits were assessed for five sample buildings provided by the ABCB. These buildings included a range of forms and occupancy profiles (table B.1). B.1 Building forms and building types used in this RIS Representative of BCA Class Building form 1 Building form 2 Building form H 3 storeys — 2000m2 GFA Single storey — 198m2 GFA Office 5 9 9 Retail 6 9 Single storey — 2880m2 GFA School 9b 9 Hospital ward 9a and 9c 9 Note: GFA = gross floor area. In ABCB (2006b), Form 1 and 2 were referred to as Building forms B and E respectively. Form H is a derivative of Form 1, but has a ‘H’ formation. Source: The CIE. Estimates of the size and growth of the Australian commercial building stock were obtained from CIE (2009a). These estimates are based on ratios of floor space and employment. Over the period 2010–20, the commercial floor stock is expected to grow by about 1.2 per cent per annum. Chart B.2 reports the average annual increase in the floor stock by use, and chart B.3 shows growth in the total commercial building stock. www.TheCIE.com.au
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PDF | 2 MB - Australian Building Codes Board

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