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Figure: Saw-tooth roof form

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  • Summer sun excluded by large roof overhangs.
  • Winter sun warms thermal mass of floor slabs.
  • Artificial lights are low energy fittings linked to daylight and presence sensors.
  • Moat is used to collect and store rainwater from the roof which is used to supply toilet cisterns.
  • Low level incoming air is cooled and humidified by moat.
  • Clerestory windows allow daylight and ventilation deep into the plan.
  • Hot air rises up the inclined roof and is exhausted through high level windows.
  • Hot air above light fittings is drawn off and extracted at high level.
  • Hot air is exhausted at high level.
  • Underslab pipe work provides heating/cooling from super efficient heat pump which draws energy from the aquifiers.
  • Thermal mass of exposed concrete floor stabilises internal temperatures.
  • High than code levels of insulation reduce heat losses in winter.

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