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Green Smart Magazine : GreenSmart 2010
Vital to the execution is the HIA GreenSmart principle of retaining and reusing as much of the home as possible, which begins at the front door. 'This was salvaged from a heritage yard,' Eddie says. 'Where we did need to use new materials, our strategy was to select products with low environmental impact.' Other products salvaged from sites include a light fitting and garden pavers, while the timber inside is sourced from a pine re-growth forest. All of the flooring is bamboo. The rest of the house follows an avoid- reuse-recycle hierarchy, and all subcontractors were given an induction about the strategy. During demolition, all bricks and timber that could be reused were separated, and where it wasn't possible to separate everything due to the site's size constraints Orange Bins took the lot away to be sorted at its own facility. As a result, all masonry, timber and steel not reused on site was recycled. Inside, a key focus is introducing light by strategically placed openings and light- coloured interior surfaces. The front study, formerly an enclosed room, is now an open home office to allow 'borrowed' light for the rest of house. A new grille on the front door enables the front door to be left open for further light to enter the house. In addition, a new staircase opens to a new attic bedroom upstairs, which extends the floor plan to a two-bed-and-open-study home. The rear section pushes out further into the block and features a new living area, which is raised by one step to avoid the need for excavation. The existing living, kitchen, bathroom and toilet were switched around, while bi-fold doors open to a deck and garden. In these spaces, passive solar design and natural ventilation is carefully considered to maximise year-round comfort. While part of the new living area is built to the side boundary, the remainder is set back to create smarthomes smart bits Products used in this transformation include: > Geberit HDPE supplies by Reece > QT EcoSeries external wall system supplied by Eco Friendly Building Systems Pty Ltd > 1.26kW grid-connected Sunpower photovoltaic system, comprising six x Sunpower 210W 24V modules, one x SMA Sunny Boy SB 1100 inverter > Canterbury Windows Low E double glazing > Colorbond 2000-litre water tank > ModWood decking (uses sawdust and recycled PET plastic) > Dulux Professional envir02 low VOC interior paints by Dulux Paints > Low VOC Environmental Choice labelled paints by Resene. > INSIDE, A KEY FOCUS IS INTRODUCING LIGHT BY STRATEGICALLY PLACED OPENINGS AND LIGHT-COLOURED INTERIOR SURFACES 20 greensmart 2010