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Metcom 930 Roofing and Wall Cladding System

Metcom 930 Roofing and External Wall Cladding system is comprised of a long run steel sheet with an asymmetrical trapezoidal profile, along with associated design and installation information. 

Metalcraft fabricates the Metcom 930 sheets from steel manufactured by New Zealand Steel. This steel is supplied with different protective coatings which are designed to withstand conditions in specific New Zealand Corrosion Zones. 

Key Features
  • Asymmetrical trapezoidal profile
  • Excellent spanning capabilities, ideal for commercial use 
  • Suitable for roofing, and horizontal or vertical cladding
  • Ideal for low pitches (3° minimum) 
  • Metcom 930 sheets are available in Colorsteel® Endura®, Galvsteel®, Colorsteel® Maxx®, and Zincalume®
  • Metrib 930 sheets are available in the following sizes: 
    • Thicknesses: 0.4mm and 0.55mm
    • Width: Cover = 930mm Sheet = 1010mm
Scope of Use

Metalcraft Roofing supply the Metcom 930 system as a horizontal and vertical external wall cladding, and for roofs with a defined minimum pitch for 3 degrees, for use on commercial and residential buildings within the following scope:


  • In wind zones:
    • Up to and including Extra High as defined by NZS-3604:2011
    • Subject to specific engineering, if the engineer has satisfied themselves that the product, pitch and fixings will meet the conditions
  • In all climate zones as defined by NZS-3604:2011, subject to the limitations set out below
  • On buildings located within 1m of the relevant boundary, in respect of fire spread only


  • On new buildings that have been designed and constructed to comply with the NZ Building Code (NZBC) using timber or steel framing
  • On existing buildings using timber and steel framing where the designer and installer have satisfied themselves that the building is suitable for the intended building work
  • In conjunction with a vapour permeable building wrap that has a permeability of 36g/m2/day of a vapour resistance of no more than 500MNs/g
  • Can be used in conjunction with a potable water collection system
Limitations on Use


  • Metcom 930 may be used as a roof cladding system in exposure zones B, C & D. For use in 'Microclimatic considerations,' (as defined in Sec 4.2.4) refer to Metalcraft Roofing
  • Metcom 930 may be used as a wall cladding system in exposure zones B & C. Where Metcom 930 is to be used as a wall cladding in exposure Zone D, then only Colorsteel® Endura® or Colorsteel® Maxx® may be used


  • Where Metcom 930 is used in an insulated building in conjunction with steel framing, a thermal break is required. This will depend on the location of the insulation layer. Timber thermal breaks are recommended
  • Contact with other materials must be in accordance with Table 21 (E2/AS1), or compatible with the The New Zealand Metal Roofing Manufacturers Association Inc (NZMRM) Code Of  Practice
  • Building height and design wind speed is limited by the Metcom 930 design load span tables
  • Where it is used as a roof cladding, Metcom 930 sheet lengths of ≤40m must be installed on a roof with a minimum pitch of 3°. Metcom 930 sheet lengths of > 40m but ≤ 60m must be installed on a roof with a minimum pitch of 4°
  • Metcom 930 can be used in conjunction with a potable water collection system
  • When used as a wall cladding, Metcom 930 must be installed in conjunction with a drained cavity
3° Minimum Roof Pitch Required
NZS 3604 Corrosion Zone D suitable
Corrosion Exposure Zone D
NZS 3604 Wind Zone Extra High suitable
Extra High Wind Zone
NZS 3604 Wind Zone Specific Design suitable
Specific Design Wind Zone
Statement of Building Code Compliance

If designed, installed and maintained in accordance with all Metalcraft Roofing requirements, the Metcom 930 Roofing and External Cladding system will comply with or contribute to compliance with the following provisions of the New Zealand Building Code:

  • B1 Structure: B1.3.1, B1.3.2, B1.3.3 (a, b, c, d, g, i)
  • B2 Durability: B2.3.1 (b)
  • C3 Fire Affecting Areas Beyond the Fire Source: C3.4(a), C3.5, C3.7 (a)
  • E2 External Moisture: E2.3.1, E2.3.2, E2.3.7 (a-c)
  • F2 Hazardous Building Materials: F2.3.1

See product technical statement for full information.

Other Performance Attributes
  • Metcom 930 will not contaminate potable water — AS/NZS 4020:2005
B1 Structure compliant
B2 Durability compliant
C Protection from Fire compliant
Protection from Fire
E2 External Moisture compliant
External Moisture
F2 Hazardous Building Materials compliant
Hazardous Building Materials
Loadspan Graph and Fixing Table
Product Technical Statement


Fire Testing Document
Environmental Category Brochure
Metcom 930 Product Brochure
Colour Range
CAD/PDF Details
Commercial Horizontal Cladding Details
Commercial Horizontal Cladding Details DWG
Commercial Horizontal Cladding Details DXF
Commercial Roof Details
Commercial Roof Details DWG
Commercial Roof Details DXF
Commercial Vertical Cladding Details
Commercial Vertical Cladding Details DWG
Commercial Vertical Cladding Details DXF
Commercial Horizontal Cladding Details RVT
Commercial Roof Details RVT
Commercial Vertical Cladding Details RVT

Metalcraft Roofing are a privately owned building product rollformer and installer with an extensive range of longrun roofing profiles, lightweight metal tiles and rainwater system solutions.

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