750
Cost and Time Analysis: Life Cost
3. Suspended mineral time ceiling, one-hour rated in corridors, completely
removed because of penetrating partitions.
4. Flooring interrupted by partitions.
The cost estimate in Table 750-3 is based on the following assumed
system conditions:
1. Lead-lined gypsum board on structural metal studs for shielded walls.
2. Gypsum board on sheet metal studs for other partitions. All partitions
stop at the ceiling-platform.
3. Accessible acoustic tile on modular runners attached to poured-gypsum
platform. Only areas disturbed by partitions and diffusers need to be
replaced.
4. Flooring uninterrupted beneath partitions.
752.6
TOTAL EFFECT ON LIFE COST
Assuming that no other items of long-term cost other than those discussed
above are affected by the Prototype Design, and the annual savings
suggested are actually realized, the total savings of $ .47 per OGSF will
pay for .99 of additional first cost. This total savings is 8% of the three
items of life cost considered, which is enough to pay for 16% of additional
first cost. (See Section 752.2.4 above.)
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