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Five Rib is an economical five ribbed trapezoidal profile that has an attractive appearance that is suitable for domestic, commercial and industrial buildings.

Five Rib is a cost effective alternative to other types of domestic roofing, offering clean straight lines and minimal laps. It is also a cost effective option when used as a commercial or industrial roof.
Five Rib clear matching profile sheeting is available in a variety of specifications.
Minimum pitch should be no less than 3 degrees.

Base Materials

Five Rib is available in Zinc coated and pre-painted steel in .40g and 55g (base metal thickness) and plain and pre-painted Aluminium .70g and .90g

RoofWalls
InternalEndInternalEnd
GaugeMaxRecommendedMaxRecommended
Steel.40BMT1600mm1400mm1100mm1000mm
Steel.55BMT12200mm1900mm1500mm1300mm
Aluminium.70BMT
Aluminium..90BMT

Fasteners

Steeltite 12gx45mm and Timbertite 12gx65mm, Class 4 fixings compatible with the material being fitted. Class 4 Coasters 75mm. 
Provision should be made for thermal expansion.

Foot Traffic

Foot traffic up the roof should be in the pan of the profile. Foot traffic across the roof should be on the purlins.

Durability

All materials should be checked for their compatibility and their warranties as to the suitability in the Environment to which they will be exposed. Warranties must comply with the maintenance recommendations as set down by the material.

Custom cut to length subject to available transport.

Design Details

For design details and best practice applications, please refer to NZ Metal Roofing Manufacturers' Code of Practice

Materials

Zinc AlloySteel.40BMTAZ150 (150GM/M2)G550 Mpa Yield Stress
Zinc AlloySteel.55BMTAZ150 (150GM/M2)G550 Mpa Yield Stress
Pre-paintedSteel.40BMTAZ150 (150GM/M2)G550 Mpa Yield Stress
Pre-paintedSteel.55BMTAZ150 (150GM/M2)G550 Mpa Yield Stress
Pre-painted
Aluminium.70BMT5052305 Mpa Yield Stress
Pre-paintedAluminium.90BMT5052305 Mpa Yield Stress

Paint Finishes

Zinacore8 - For general exterior roofing and cladding applications. NOT suitable for use in severe or very severe marine Environments

ZinacoreX - For general exterior roofing and cladding applications. NOT suitable for use in very severe marine Environments

AR8 - For general exterior roofing and cladding applications. Suitable for use in up to very severe marine Environments

ARX - For general exterior roofing and cladding applications. Suitable for use in up to very severe marine Environments

Installers

Only qualified approved roof installers should be used on your contract. All installations should be to the standards as set out in the NZ Metal Roofing Manufacturers' Code of Practice.