A number of sustainability strategies were applied by Anderson Architecture for this alteration and addition project at Blackheath, NSW.
The architects sought to improve interior conditions of the building for its occupants under the guise of environmental sustainability.
Operable double glazed window units, sufficient insulation of the walls and slab of the original dwelling and the new addition, and the installation of energy efficient methods of environmental control were key to achieving this goal.
The installation of large spans of operable glazing allow for the active participation of the occupants in regulating the internal environment through providing access to fresh air and enabling cross ventilation. No eaves were incorporated to the northern windows as the thermal modelling showed that they reduced winter sun penetration.
Through the installation of highly efficient and operable glazing units, energy efficient and dimmable light fixtures, water efficient fixtures and a low intensity hydronic heating system, the resource demands of the addition are also kept to a minimum.
The efficient use of space and modest scale of the addition ensures that the client's requirements are fulfilled while reducing the environmental impact of the development. Provisions have been made for the future installation of an above ground rainwater tank.
- 8 Star thermal rating
- North facing orientation with strategically designed glazing to capture and control sunlight and daylight access
- Thermal mass, exposed concrete floors throughout addition
- Gas instantaneous hot water system
- Hydronic floor heating and radiators
- Tontine 100 per cent polyester batt insulation, with min. 83 per cent recycled content to ceiling and new walls
- Insulated Green Star 3 concrete slab
- High performing double glazed and operable blackbutt framed windows
- Recycled concrete gravel to courtyard and driveway
- Low VOC paints and finishes
- Upgrading of original cottage floor and wall insulation
- Provision for future water tank installation
- Recycled timber feature beam to new master bedroom
- Water efficient fixtures to bathroom and ensuite
- Energy efficient lighting fixtures installed throughout addition
TONTINE, 'THERMAL & SOUND' INSULATION
FOAMULAR 250 EXTRUDED POLYSTYRENE BOARD
RESENE PAINTS, LOW VOC PAINTS