After identification of the feasible set of wall types (a subset of the available
walls), work proceeds on the more refined or detailed preliminary designs. Then a rating
of these feasible designs should be made.
To consider the various factors during the selection process, use the worksheets
shown in Figs. 8.2, 8.3, and 8.4, along with the properly defined design problems
(objectives and constraints) and cost requirements (Fig. 8.5). These sheets form a part
of the documentation in support of the final selection(s)