It is often difficult to specify clearly to a builder or air-conditioning specialist the requirements for a storage environment. Merely stating the target temperature parameters may not produce a successful outcome. It is suggested that the following parameters be considered.
An alternative to the standard supply contract is a performance contract in which the performance is defined in terms of given standards or approaches, but the supplier is commissioned over a given period of time to maintain and manage the system so that it continues to meet those standards. This is likely to be more expensive, but provides a strong incentive for the supplier to meet the specified conditions in the long term.