Engineering News 30 July 2012.
A case study into a recent retrofit of 30 low-cost houses in Cato Manor, in KwaZulu-Natal, shows that material energy and water savings can be made through the use of green-building techniques, such as solar geysers, ceiling insulation and rainwater harvesting.
The study followed on from a R1.2-million project undertaken by the Green Building Council of South Africa (GBCSA) and funded by the British High Commission in the run-up to the recent seventeenth Conference of the Parties climate negotiations, held in Durban.
The installation of solar water heaters proved to be the most popular of the interventions made, as it provided convenient warm water to residents that previously used stoves, kettles and burners to heat their water.
Other solutions deployed included efficient compact fluorescent lighting, ceiling insulation and a rainwater harvesting system that had to be specially designed for houses that had been built without gutters…