5. The Natural Step

5.3. Green material research

An Australian study of the environmental impact of many different building materials has been summarised in the table below (data from Lawson, 1996).  Notes for table, (1) min = minimal in column 3, (2) Reuse potential (column 7) is for the product and not the material.  Green = Excellent, pale green = very good, yellow = good, orange = fair and red = poor.

Materials selection 1

Materials selection 2

In summary, green building materials are those that:

  • Produce a healthy indoor environment
  • Do not contribute to an unhealthy outdoor environment
  • Minimise building energy use
  • Have low embodied energy
  • Are durable, reusable, recyclable and/or biodegradable
  • Are obtained locally