2. Watson & Lab MAtrix Analysis
The Watson & Lab Matrix was used to analyse the passive strategies these vernicular builders adopted  to minimize the energy needs for heating, cooling, ventilating and even illuminating the indoor spaces .  Macau lies in the subtropical climatic zone as indicated in figure . As a result is characterized by hot summers and mild winters. The passive strategies used by these vernacular designers for this particular area was focused on the hot season. The Watson&Lab in figure 1 illustrate the strategies adopted by the local builders to guarantee the comfort zone in the dwellings.