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Green Smart Magazine : 2009_new
Of course the water-saving principles go hand-in-hand with the rest of the house's sustainable features, and another area of non-negotiation is the promotion of passive solar gain and thermal mass. 'This was achieved by the placement of windows and door openings, including louvres, to the main bedroom and lounge room. Doors and windows were sealed to prevent heat loss,' Wayne says. All living areas face north, and double glazing is used on windows and doors, alongside high-value insulation to walls, ceilings, floors and the roof. Eaves and furnishings provide effective solar protection. For electricity, there are 20x170W photovoltaic roof panels that feed power back into the grid, while a Siddons Solar Stream Heat Pump HWS provides hot water for the house. Wayne and ARM were also keen to develop a waste management system to ensure the site was managed in the most sustainable manner, which befitted green office practices. 'The original house on the site was dismantled and 50 per cent of materials were delivered to second hand dealers,' Wayne says. 'We also used local trade and suppliers as much as possible plus limited the need for unnecessary short trips for daily consumables and supplies.' The cutting-edge design of the K House is also equipped with state-of-the-art control systems, enabling the occupants to use their holiday house comfortably and practically. Internal and external monitoring systems include lighting, heating and cooling, ventilation fan system and automated irrigation system for controlled watering of garden beds. gs ideas everyone can use • reduce your use of potable water through efficient design and construction from the outset, including rainwater tanks, a greywater system, and installing triple-A rated dual-flush toilets, showerheads and tapware • ensure any systems installed are durable and easy to maintain • plant water-friendly indigenous vegetation and use mulch and controlled irrigation to avoid water runoff • reduce energy use by installing a home automation system, which can be programmed to ensure energy is used only when it is needed (lights, heating etc). INSET: The K shape has been repeated throughout the house for cutting-edge, modern appeal 38 greensmart 2009 smarthomes 'THE ORIGINAL HOUSE ON THE SITE WAS DISMANTLED AND 50 PER CENT OF MATERIALS WERE DELIVERED TO SECOND HAND DEALERS'