The layout of these homes is simple, and catered to the dwelling of the large number of people usually part of a tharavaadu. Ettukettu (eight halled with two central courtyards) or Pathinarukettu (sixteen halled with four central courtyards) are the more elaborate forms of the same architecture. Rarely, twelve-halled Pathrandukettu were constructed. with three courtyards,[1] and there is a record of a 32-halled Muppathirandukettu being erected, although it was lost to a fire soon after construction.[2] Every structure faces the sunlight, and in some well designed naalukettu, there is excellent ventilation. Temperatures, even in the heat of summer, are markedly lower within the naalukettu.
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