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Bevelback Weatherboard Wall Cladding System

Bevelback Weatherboard External Wall Cladding system is comprised of a long run steel sheet with a traditional timber cladding profile, along with associated design and installation information.

Metalcraft fabricates the Bevelback Weatherboard 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
  • Traditional profile
  • Low cost cladding ideal for out buildings, garages, and sheds
  • Suitable for horizontal cladding only
  • Bevelback Weatherboard sheets are available in Colorsteel® Endura®, Galvstee®l, Colorsteel® Maxx®, and Zincalume®
  • Bevelback Weatherboard sheets are available in the following sizes: 
    • Thicknesses: 0.4mm and 0.55mm
    • Width: Cover = 787mm Sheet = 847mm
Scope of Use

Metalcraft Roofing supply the Bevelback Weatherboard System as a horizontal external wall cladding on residential and commercial buildings for use 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
Limitations on Use


  • Bevelback Weatherboard may be used as a wall cladding system in exposure zones B & C. Where Bevelback Weatherboard is to be used in exposure Zone D, then only Colorsteel Endura or Colorsteel Maxx may be used


  • Where Bevelback Weatherboards are used in an insulated building in conjunction with steel framing, a thermal break is required
  • 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 Bevelback Weatherboard design load span tables
  • Where a building is insulated, Bevelback Weatherboards must always be installed in conjunction with a ventilated and drained cavity
  • Outbuildings or detached garages can be direct fixed as per E2/AS1
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 Bevelback Weatherboard 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.

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
Product Technical Statement


Fire Testing Document
Fixing Information
Environmental Category Brochure
Colour Range
CAD/PDF Details
Commercial Horizontal Cladding Details
Commercial Horizontal Cladding Details DWG
Commercial Horizontal Cladding Details DXF
Residential Horizontal Cladding Details
Residential Horizontal Cladding Details DWG
Residential Horizontal Cladding Details DXF

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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