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Rsearch Report 28 THE GOALS

2. Provide a comfortable, affordable, and high performance housing solution through
design to stop people from dying of airborne diseases in their home.

How can this be implemented?

• Adopting passive shading design methods and optimizing building orientation to
ensure direct solar exposure during summer is eliminated, whilst maximising direct
solar exposure during winter. This will reduce the reliance on mechanical cooling
systems, reducing operational expenses.

• Incorporate light wells/solar chimneys to allow for good cross flow ventilation, as well
as providing a connection between indoors and outdoors. This allows for hot air to be
expelled up and out of the dwelling naturally. These sliding doors/windows need to
be thermally broken and have a Uw of 1.8 - 3.4, SHGC of 0.25 - 0.64, Tvw of 0.34 - 0.70.

• Ensure ERV or HRV units are installed for continuous isothermal conditioning, split
systems should be installed for the 5-10 days per year where the climatic conditions
are extreme to allow the occupants control.

• Mandate the installation of photovoltaic panels, rainwater collection and geothermal
heat pumps (if suitable) to achieve a net-zero energy outcome to reduce running
costs and operational affordability. Giving people to ability to invest more up front.

• Provide continuous external and internal insulation throughout the entire building
envelope. It is recommended to use two sheets of 20mm PIR foam core fixed ei-
ther side of a 100mm male-female aluminium mullion at 600mm centres. This sys-
tem will be panellised with 2 sheets of ply on either face, which can be externally
and internally clad with any product. The air gap can be filled with Rockwool batts
insulation for acoustic performance as well as providing 100mm space for servic-
es and plumbing. This system can be used for the floor, walls and roof, providing

a completely panellised envelope. Thermal breaks need to be incorporated at the
window-wall joints, the aluminium mullions within the panels will not need to be
thermally broken as the PIR foam will prevent thermal bridging. The strength of the
mullions allows for greater spans and less material than traditional construction and
Brendan Wilson engineering practice, reducing the overall cost of works. Each panel at 1200mm x

2700mm x 150mm will be close to $150/m2 with an R value of between 5&6, and will
be non-combustible.