ABSTRACT

A comparison of the monthly mean maximum temperature with the appropriate day comfort limit indicates whether days are hot, comfortable or cold. Similarly, a comparison of the mean monthly minimum temperature with the appropriate high comfort limits indicates whether nights are hot, comfortable or cold. The degree of thermal stress can be used to indicate the design features required to achieve comfort during a particular month. These

indicators are shown in Table IV. The total number of indicators for each month for the whole year can be used in Table V to find the requirements for plan form and building elements. This method takes into account the possibility of conflicting requirements over the year and the requirements shown in Table V are optimised over the whole year. Some flexibility in interpretation may be required in borderline cases.