shall consider construction costs, known upkeep, main-
tenance and replacement costs and schedules, thermal
resistance effects on heat loss/gain and first cost impacts
to HVAC system designs. Other factors that cannot be
calculated but should be considered in making the selec-
tion include appearance, the ability to match the finish of
expansion areas or replacement panels, resistance to
moisture, freezing and ultraviolet light damage, seismic
and wind resistance, source and manufacture availability
and construction requirements.
Sun Control Devices. The analysis should consider:
construction costs; solar gain reduction, HVAC system
first costs, operating costs; maintenance and replacement
costs; and utility costs compared with not providing sun
control devices. As previously stated, sun control also
relates to maximizing efficient use of natural daylight in
the building.
Exterior Windows. The analysis should consider the
construction costs, HVAC system first costs, solar
transmission and heat gain and insulation characteristics.
Other factors that cannot be calculated but should be
considered in making the selection include the affect of
color tones on the interior environment, exterior views
into the building and security. Analysis should be
performed on moderately sized and large buildings
considering at least one alternative and at up to three
alternatives for very large buildings.
Alternative Roof Systems. In typical projects, a life
cycle cost analysis is not required. If a new technology is
proposed that has a higher initial costs and probable
long term cost savings, then an analysis should be used as
part of the decision to utilize the new technology.
Sam Gibbons U.S. Courthouse, Tampa, FL
105
ARCHITECTURAL
AND
INTERIOR
DESIGN
3.9
Life Cycle Cost Analysis
Revised March 2005 PBS-P100
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