African Design Magazine October 2015 | Page 19

African project Handmade House • Termite mounds were abundantly spaced all over the site. Using them helped to get rid of these pests. We were hoping that the enzymes that cause the strong properties in the termite mounds might be transferred to our walls, but they gave a far more crumbly test than plain soil. • Cassava starch – perhaps the most commonly cooked food in Ghana – gives off a non-Newtonian viscous starch which we included in the wall mixture in the place of water. This seemed a good discovery at first but then the starch seemed to go off within the wall after a week in the African sun, making for a wall which was more fetid than firm. • Coconut coir & grass – already commonly used in construction, this helped to bind the earth and reduce cracks. We eventually chose not to use grass because it is prone to degrade and therefore, in large quantities, makes gaps and emits moisture within the wall. Share your thoughts Read more here africandesignmagazine.com 19