Standard Practice for Measuring Life-Cycle Costs of Buildings and Building Systems

Importancia y uso:

5.1 LCC analysis is an economic method for evaluating a project or project alternatives over a designated study period. The method entails computing the LCC for alternative building designs or system specifications having the same purpose and then comparing them to determine which has the lowest LCC over the study period.

5.2 The LCC method is particularly suitable for determining whether the higher initial cost of a building or building system is economically justified by reductions in future costs (for example, operating, maintenance, repair, or replacement costs) when compared with an alternative that has a lower initial cost but higher future costs. If a building design or system specification has both a lower initial cost and lower future costs relative to an alternative, an LCC analysis is not needed to show that the former is the economically preferable choice.

5.3 If an investment project is not essential to the building operation (for example, replacement of existing single-pane windows with new double-pane windows), the project must be compared against the “do nothing” alternative (that is, keeping the single pane windows) in order to determine if it is cost effective. Typically the “do nothing” alternative entails no initial investment cost but has higher future costs than the proposed project.

Subcomité:

E06.81

Referida por:

A1068-10R20, E1121-15R20E01, E1185-15R20E01, E2252-22, E2637-17R24, E2432-23, E1369-15R20E01, E1057-15R20E01, E1074-15R20E01, E3130-21, E2166-16R23, E2432-23, E0964-15R20E01, E2150-17R24, A0930-09R20, E2204-15R20E01, E1699-14R20, E2103_E2103M-19R24, E2506-15R20E01, E1765-16R23, E1557-09R24, E3008_E3008M-16R23, E3035-15R20

Volúmen:

04.11

Número ICS:

91.010.20 (Contractual aspects)

Palabras clave:

building economics; building systems; cost analysis; engineering-economics; life-cycle costs; present-value analysis;