on site . Where traditional clay bricks are used , the mortar is made from local lime and sand .
Earth plasters are used extensively and are made from sand , clay and lime . A similar mix is used on the floors with an organic binder . Reeds found in the valley are used as traditional ceiling cladding . Using recycled materials ensures a reduced carbon footprint . All the classroom doors are recycled Teak and Oregon Pine doors reclaimed from old buildings in Paarl .
Sustainability Photovoltaic panels on the Heart of the School provide electricity . Design strategies like natural ventilations , thermal mass , maximum daylighting , and orientation ensure a very low energy demand from all the buildings . The Thermally Activated Building System ( TABS ) is a combined heating and cooling system with pipes embedded in the earth floors that will be used to control the building climate in the extreme winter and summer
30 Green School