The NHBC Foundation has introduced a new guide aimed at helping site managers engage more closely with the commissioning process.

'At your services – What to expect during commissioning' – produced in collaboration with BSRIA, is a response to the ever-expanding family of services from solar-technologies to whole-house ventilation systems that means that site managers will see an increasing range of commissioning activities on their sites, often of a highly technical nature.

The guide gives special attention to explaining the reasons for the various commissioning activities and how they contribute to long-term trouble-free operation. It covers the following types of services:


• Water and drainage

• Gas connection and distribution

• Electrical installations

• Boiler – gas supply and correct operation

• Underfloor heating pipe loops and manifolds

• Unvented, indirect hot water cylinders

• Ventilation systems

• Air source (air to water) heat pumps

• Solar hot water systems

• Grid-connected photovoltaic (PV) systems.

In a foreword to the new guide Neil Jefferson, NHBC's Chief Operating Officer, said: "The reality is that many site managers today feel distant from the commissioning checks and balances that are so crucial.

"Commissioning in general has become much more technical and exacting, with processes and language which are not easy for non-specialists to understand. This is not good for the success of commissioning which ultimately depends on good understanding between the site manager and commissioning experts involved."

The NHBC Foundation guide can be downloaded here.