A 1997 UK Ministry of
Defence initiative focused attention on the need to consider
the whole life costs of building work. ‘Building down
Barriers’ started as a pilot
project for the Ministry of Defence's property arm, Defence
Estates, to explore the benefits of adopting a whole-life approach
to costing.
This showed that, rather than relying on the lowest tender
prices to contain costs, a small uplift in capital cost was
actually shown to result in reduced overall long-term costs.
In the first Building down Barriers projects, a 3% increase
in capital expenditure had the effect of a 10% saving in life-cycle
costs.
Since then further studies have resulted in the rule of thumb
known as the “1:5:200 ratio”. This gives the approximate
proportions of initial capital cost: maintenance cost: operating
cost for a typical commercial building and indicates that,
over its operational life, a building will typically cost 5
times its initial capital cost to maintain and 200 times its
initial capital cost to run.
It has been shown that, typically, most of the future maintenance
costs of a structure are built-in at the initial design stage.
Reports from the insurance show that 40% of problems are the
result of inadequate design information and 40% are the result
of incorrect site installation or detailing. Only 20% of problems
arise from the failure of manufactured components.
However, whole life costing does carry some risks. It requires
a new set of skills that may be lacking in different parts
of the supply chain. Many clients themselves are unable to
adequately describe how they expect a new asset or structure
to be used, and may be unable to convey this to the construction
team. Designers, in particular need to be familiar with contemporary
whole-life/ best-value cost principles and be in a position
to apply them.
Despite the need for caution, the adoption of whole-life costing
is rapidly gaining momentum, and Bekaert
are at the forefront of providing Best Value fencing solutions - expert advice on
design and specification, quality assured manufacturing and
installation, all backed by the unique BEKassure™ insurance-backed
guarantee
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