Modern Methods of Construction (MMC) for Commencement Notices

This page gives guidance on the selections included in "Main Method of Construction" and "Main Construction Material" question in the Online Assessment for Commencement Notices.
In this context "Main Method of Construction" means the primary structural system used in the building or works.

Standard Construction (Non MMC)

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Cavity Wall

Standard Construction (Non MMC) - Cavity wall construction with blockwork inner leaf

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Reinf Concrete

Standard Construction (Non MMC) - Reinforced Concrete main structural elements

Standard Construction (Non MMC):

Describes construction that use on site processes to construct the main structural elements e.g. block laying and pouring of reinforced concrete.

Typical examples would be masonry cavity walls, solid masonry walls and reinforced concrete framed buildings.

Main Construction Materials:  

  • Masonry - Brick
  • Masonry - Block
  • Masonry - Stone
  • On-site assembled timber frame (non IS 440)
  • Reinforced Concrete
  • Steel and concrete composite

For cavity walls the selection should be based on the material of the inner leaf.

If a novel form of Standard Construction (Non MMC) is being used please select other and enter in the details. 

 

Modern Methods of Construction Category 1 -3D Volumetric Primary Structure

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MMC Type 1 - 3D Structural Unit

MMC Cat 1 - 3D Structural Unit

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MMC - Type 1 Units being craned into Position

MMC Cat 1 Unit being craned into Position 

Modern Method of Construction Category 1

These are three-dimensional units consisting of floor, wall and roof panels, which are the primary structure of all or part of the building. The units are made in factories and transported to site.

The category comes:

  • with or without cladding (an external surface to protect buildings such as block with plaster to prevent against ingress of water from rain), and
  • with or without internal fit-out such as kitchens or bathrooms. 

Several volumetric units can be combined to make up a building, or a single volumetric unit can be a small dwelling. 

Main Construction Material for MMC Category 1:

  • Timber Frame
  • Mass Engineered Timber
  • Precast Concrete
  • Structural Steel
  • Light Gauge Steel

If a novel form of MMC Category 1 is being used please select other and enter in the details. 

Modern Methods of Construction Category 2- 2D Panelised 

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2D Structural Panel

MMC Cat 2 - 2D Structural Panel with Insulation and external cladding

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MMC Cat 2 - 2D Light Gauge Steel Panel

MMC Cat 2 - 2D Light Gauge Steel  (LGS) panel

Modern Method of Construction Category 2

These are two-dimensional flat panel units such as panelised walls, which are part of the primary structure of the building. They are made in factories and assembled on site, to produce a building.

Panelised components can include:

  • Walls, roof and floors,
  • Insulation and linings, and
  • Cladding, windows, roofing and doors. 

Main Construction Material for MMC Category 2:

  • Timber Frame
  • Mass Engineered Timber
  • Precast Concrete
  • Structural Steel
  • Light Gauge Steel
  • Insulated Concrete Formwork - Panelised
  • Structural Insulated Panel Systems

If a novel form of MMC Category 2 is being used please select other and enter in the details. 

Modern Methods of Construction Category 3 - non systemised primary structure

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Glulam Junction

MMC Category 3 - Glulam primary structure

Modern Methods of Construction Category 3

These are two-dimensional components such as beams and posts, which form part of the primary structure of a building. They are made in factories and assembled on site to produce a building

Main Construction Material for MMC Category 3

  • Mass Engineered Timber
  • Precast Concrete
  • Structural Steel

If a novel form of MMC Category 3 is being used please select other and enter in the details. 

Modern Methods of Construction Category 4- Additive Manufacturing

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3D house floor plate

MMC Category 4 - Ground floor in-situ concrete walls being "printed" 

Modern Method of Construction Category 4

This MMC Category uses remote, site based or final workforce based 3D printing of parts of buildings through various material based on digital design and manufacturing techniques

Main Construction Material for MMC Category 4

  • Cast In-situ Concrete

If a novel form of MMC Category 4 is being used please select other and enter in the details. 

Modern Methods of Construction Category 7 - Innovative site process and approaches

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MMC Cat 7 - ICF External Structural walls

MMC Cat 7 - Insulated Concrete Formwork (ICF) External Structural walls 

Modern Methods of Construction Category 7

This category of MMC uses innovative construction techniques that improve on site processes.

Main Construction Material for MMC Category 7

The most common form of MMC Cat 7 is Insulated Concrete Formwork (ICF).

If a novel form of MMC Category 7 is being used please select other and enter in the details.