Home' Homes : Homes 2011 Contents Scoop Publishing | WA’s Best Homes & Design 2011/12 191
The straightforward brief for this home called for
sustainability, no air-conditioning, and ample
heating in winter.
The residence keeps its carbon footprint low
by using a highly insulated, locally sourced
timber frame, recycled material from the site
and no external painting. The landscape design
uses local species, while a storm-water reed-bed
treatment system feeds an on-site dam, which is
rehabilitated into a natural wetland environment.
The residence encompasses a north-facing
greenhouse, which absorbs heat during the
day. In winter, this heat is transferred using
low wattage (less than 100W) fans into thermal
masses placed around the building.
One thermal mass lies under the living wing,
where granite rubble from the site excavation
absorbs the heat and releases it slowly through
the floor slab.
Two other thermal masses are ‘water walls’
- locally recycled agricultural chemical drums
stacked and filled with water.
In summer, these masses use the greenhouse
as a night purge system to remove the day’s heat
from the house. More details on how these work
are available on the Northlight website.
The home was delivered on time and under
budget, and demonstrates what is achievable with
the collaboration of a client, designer and builder
who are all committed to a sustainable philosophy
of low-tech, low-cost, active solutions.
Northlight Building Design
83b Victoria Street, Bunbury
Phone (08) 9791 8777
Unit 1/16 Griffin Drive, Dunsborough
Phone (08) 9756 7308
Northlight Building Design and Valmadre
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