House Design Factors for environmentally sustainable buildings in Warm Humid Climates(Sub-Tropical)
(Examples: Brisbane and areas inland of Townsville)
* High humidity with a definite "dry season".
* Hot to very hot summers with mild winters
* Distinct summer/winter seasons.
* Moderate to low diurnal (day/night) temperature range. This can vary significantly between regions, e.g. inland
KEY DESIGN PURPOSES:
* Use lightweight construction where diurnal (day/night) temperature range is low and include thermal mass where diurnal range issignificant.
* Maximise external wall areas (plans ideally one room deep) to encourage movement of breezes through the building (cross ventilation).
* Site for exposure to breezes.
* Shade whole building where possible in summer.
* Allow passive solar access in winter months only.
* Shade all east & west walls & glass year round.
* Avoid auxiliary heating as it is unnecessary with good design.
* Use reflective and bulk insulation (especially if the house is air-conditioned) and vapour barriers.
* Use Elevated construction with enclosed floor space, where exposed to breezes.
* Choose light coloured roof and wall materials
* Provide screened and shaded outdoor living.