530
Cost Base: Functional Area Costs
A category referred to as 0 (zero) covers mechanical rooms, stairways,
elevators, etc. The structural subsystem is prorated as a fixed cost over
all functional areas.
534.2
SUMMARY TABLES
Tables 530-8 and 530-9 summarize subsystem costs for the major
functional areas in the support areas of the Miami and Memphis field
stations. Figures 530-1 and 530-2 chart the same information plus
indicating the relative size of the areas to which the various costs apply.
534.3
CEILINGS
534.3.1
Figures 530-3 and 530-4 illustrate the proportion of ceiling costs
distributed among functional areas at Miami and Memphis. Variations in
the unit costs are mostly attributed to type of finish material.
534.3.2
The two hospitals differ to a significant degree only in the shops and
laundry, warehouse, storage, and housekeeping areas. At Miami such
spaces are generally finished with plaster or suspended acoustic
materials, while at Memphis similar spaces are finished with relatively
inexpensive paint or spray applied plaster finishes over the exposed
structure. Three times as much space at Memphis is so simply and
inexpensively finished.
534.3.3
The majority of the ceiling finishes at both Memphis and Miami were found
to have similar unit costs when compared directly by functional area.
However, the Miami costs tend toward a uniform 10 to 15% higher level
than those at Memphis. One reason for this tendency lies in the fact that a
higher proportion of cement enamel and suspended plaster ceiling finishes
were employed throughout the Miami support areas. There is 2 to 3 times
as much suspended plaster and 2 to 10 times as much cement enamel to
be found at Miami than at Memphis. There are also substantial quantities
of membrane faced acoustical tile at Miami not found at Memphis. The
double ceilings which are utilized as plenums in the Miami corridors are
further reflected in the higher unit costs.
534.3.4
Even though unit costs for ceiling finishes in similar functional areas may
vary as much as 75% between Miami and Memphis, the overall average
unit costs differ by no more than 16%.
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