11. • minimize solar gain,
maximize natural ventilation
• avoid facing east & west
maximum sun exposure
• main windows & longer sides face
north or south to catch
prevailing breeze
12. • to better indoor air quality &
achieve thermal comfort
• natural & mechanical
• two principles:
–Cross ventilation
–Stack ventilation
13. • elongated floor plan
• minimum internal partition
• elevate house on stilts
to optimize natural ventilation
14. • high ceilings (to diffuse interior heat)
• high level window/clerestory
• vents in the roof
to optimize natural ventilation
15. • windows on opposite side
• maximize window openings (size and
distribution)
• some shading methods: louvers, trees
to optimize natural ventilation
17. • thermal mass of
material
– lightweight material:
timber, wood, galvanised
iron
• durability
– concrete, brick
• good insulator of heat
– thatch, terra cotta, build
double walls, etc
18. The End
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Editor's Notes
aims to provide a glare free working illuminance for a minimum heat gain (prevent overheating)talk about visible and invisible radiation, greenhouse effect
SOLAR GAIN > natural ventilationSun & wind
high ceilings (to diffuse interior heat)windows on opposite side--max cross ventilationhigh level window/clerestory--stack effectvents in the roof--stack effect
Allowing adequate ventilation for cooling and reduction of humidityUsing of low thermal capacity building materials so that little heat is transmitted into the building.Controlling direct solar radiationControlling glare from the open skies and surroundingsProtecting against heavy rainAssuring adequate natural vegetation in the surroundings to provide a cooler microclimate