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Flood risk

The risk of flooding is increasing as development changes the nature of flood plain and as the climate alters, affecting rainfall intensity and sea levels. Building services engineers should aim to incoporate flood resistant measures into the design of building services and work with the project team to raise awareness of flood risk.

Sustainable urban drainage systems (SUDS) is an approach to managing rainfall that aims to mimic natural drainage and avoide the problems of flooding and pollution associated with conventional drainage. SUDS should be integrated with systems such as rainwater harvesting and wastewater treatment.

Water efficient design 

The main principles of water efficient design are:

  • Reduce demand (and waste)
  • Meet demand efficienctly
  • Supply collected rainwater or recycled grey water
  • Recycle black water close to the point of use, if appropriate
  • Enable water management 

Further guidance includes: