Definition – Critical value

Critical value aims to maximise whole life value of the building based on client requirements, and differs from minimising life cycle cost. This is a more specific analysis of how the building’s ongoing maintenance and operation can impact business needs. For instance:

  • Where any disruption to business is costly, a specification with long periods between maintenance cycles and reduced maintenance time may be desirable.
  • Where maintaining aesthetics are important, a maintenance cycle may be based on aesthetic upkeep rather than functional lifespan.
  • Where maximum recyclability and re-usability is important, an alternative, costlier specification may be required.
  • Where capital costs are constrained, the specification with the lowest LCC may not be affordable, and instead, the best available option within the budget is chosen.