12 factors to consider when accurately determining life expectancy of assets and elements:

Quality of design, installation and commissioning

An asset with a long life expectancy will be reduced if installed badly or incorporated within a poorly designed installation. Wooden joinery in a poorly ventilated building, unbalanced fan blades; lack of expansion joints/bends in pipework will reduce life expectancy and increase costs.

A qualified engineer must be used to determine life expectancy outside the accepted ATO benchmarks (this is called ‘self assessment’).

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