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Critical Component
The portion (component) of an asset that is fundamental to its primary function and therefore has the greatest impact on calculating and estimating the following:
  • The bundled life of the asset.
  • The timing for replacement of the asset.
  • The intervals for major maintenance of the asset.
The condition of the critical component is the fundamental replacement driver of the asset and typically receives a higher weighting than the secondary and tertiary components.


For example:
  • The waterproof membrane is deemed to be the "critical component" of the roof, whereas the perimeter flashing and ballast are secondary components.
  • The motor is the critical component of the exhaust fan, whereas the housings and grilles are secondary components.


Fig. The "critical component" of a roof is the waterproofing membrane whereas the flashings and drains are the secondary components.

See also:
Compare with:
  • Secondary Components


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