Identifying key systems for sustainable homes
Our first systems project focuses on developing systems for both new homes and renovations which would substantially improve their ability to perform to a high standard of sustainability.
Using Life Cycle Assessment
By applying Life Cycle Assessment to previous Beacon projects (the Waitakere NOW Home® and two Papakowhai Renovations), we’ll find out more about the environmental hot spots. These are systems which contribute the most to the environmental impact of a home. For example, the ratio of embodied energy to operational energy to heat these homes will be established. Embodied energy is the energy used throughout the manufacturing, installation and disposal of a system, and may considerably add to the overall environmental impact of a product.
Setting criteria
The first step will be developing the criteria on which to assess building systems. These will reflect the needs of homeowners and builders, environmental impacts and the performance of the home to a HSS High Standard of Sustainability®.
Identifying systems for further development
Alternative innovative systems will be assessed and prioritised. The top two systems will be prioritised for further development.
Our team will develop Life Cycle Assessment-based system calculators for each of the two systems, which will provide material lists and environmental impacts of a number of alternative designs. Material lists might include, for a concrete floor as an example, the required amounts of concrete, insulation etc., and a timber floor system, including concrete foundations, timber construction and insulation. Once performance benchmarks are also set, the calculator will indicate the environmental profile of the different systems which provide the required performance.
Related Documents
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02-Jan-2006 (Report TE200/2)
White Paper: Life Cycle Assessment and the Building and Construction Industry (PDF 257KB)
Barbara Nebel
Describes the concept of Life Cycle Assessment (LCA), possible applications of the results and available tools and databases on anational and international level
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Installing wall cladding, Rotorua NOW Home®