MMC definition framework
Modern Methods of Construction, Introducing the MMC definition framework, published by Ministry of Housing, Communities & Local Government (MHCLG) in 2019 defines 7 categories for MMC:
- Category 1 – Pre-manufacturing (3D primary structural systems).
- Category 2 – Pre-manufacturing (2D primary structural systems).
- Category 3 – Pre-manufacturing components (non-systemised primary structure).
- Category 4 – Additive manufacturing (structural and non-structural)
- Category 5 – Pre-manufacturing (non structural assemblies and sub-assemblies).
- Category 6 – Traditional building product led site labour reduction / productivity improvements.
- Category 7 – Site process led site labour reduction / productivity / assurance improvements.
This framework was established by a specialist sub-group a cross industry working group led by Mark Farmer of Cast Consultancy, the chair of the wider MMC working group, supported by representatives of Buildoffsite, Homes England, National Home Building Council (NHBC) and Royal Institute of Chartered Surveyors (RICS).
It is intended to regularise and refine the term ‘MMC’ by defining the broad spectrum of innovative construction techniques being applied. It also offers the opportunity to create more structured datasets capturing the use of MMC and its performance.
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