It is the cheapest type of plaster, commonly used in the construction of village houses, temporary sheds and structures of temporary importance. Apart from being cheap it provides insulation against heat and keeps the house cool for comfortable living. Clay plastering (in two coats) is then done as follows:
Mud plaster, consisting of well-ground clay, chopped straw and cow dung, is prepared in a uniform mass as previously described.
Groundwork for wall surface preparation and plastering is done in exactly the same way as for lime or cement plaster.
The first coat is then applied at a thickness of 12 mm by pushing the plaster or laying it on the screeds. The surface is then finished with a straight edge and a wooden float.
24 hours after the first coat has set (but not dried), a second coat is applied at a thickness of 6 mm.
In this case no treatment is done but the surface is washed with fine white clay, cow dung and cement in a mix ratio of 3:2:1 respectively.
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