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Passive houses in tropical climates
Posted on: 19 September 2013
By: mackene
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Filed under: News
Passivhaus principles are just as good at reducing energy demand in tropical climates as they are in central European ones, as the focus shifts to cooling and dehumidification rather than heating. That is the key conclusion of a new study by Germany’s Passivhaus Institut. Analysing the challenges of heat, torrential rains and high humidity, the study looks at dynamic simulations set in three cities: Mumbai, Singapore and Salvador da Bahia in Brazil. It shows that the essentials for Passivhaus buildings in tropical climates are: a very airtight building envelope; 10-15 cm of insulation; solar control glazing; fixed external shades for the windows; and ventilation with both heat and energy recovery.
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