ELEMENT:
Gyprock Plasterboard 10mm thick
AIM:
Plasterboard gives a smooth, strong and lasting finish for ceilings. It
can be installed simply, quickly and at a low cost. Plasterboard is naturally
fire resistant as the core material does not burn or support combustion.
STRATEGY:
Optimise Passive Design
Plasterboard is a stable building material when subjected to a normal
range of air temperatures and humidity. To ensure a long term performance
of the plasterboard and paint finish, the roof space should be ventilated
to eliminate overheating. Pop up windows in the breezeway and main bedroom
allow heated air to escape at a high level
The ceiling provides a further layer underneath the roof to slow down
heat transfer from the roof into the house in summer and slows the heat
escaping from the inside in winter. Depending on the local authority ceiling
insulation should generally have a minimum resistance rating (R rating)
of 2.5.
Reflective foil should be installed in line with the roofing structure
to reflect heat away from internal rooms. Bulk insulation installed in
line with the ceiling reduces heat escaping from inside rooms.
Conserve Energy
Painting the ceiling and walls with light colours reflects light that
enters into the building. This helps to distribute the day lighting inside
the building and reduces the need for electric lighting during the day.
REFERENCE:
The Department of Mines and Energy, Queensland Government. Guide to Energy
Efficient Home Design. www.dme.qld.gov.au
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