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Multirib Metal Roofing

Multirib is a medium height, long run roofing and cladding profile designed primarily for industrial and commercial applications. Multirib is also suited for roofing applications on low pitch residential projects.

Key Features
  • Convex ribs provide strength and water run-off away from the fixings
  • Twin capillary breaks on the lap
  • Purpose designed leg provides support to the underlap
  • Steeply angled ribs provide superior strength and aesthetics
  • Installers feet fit neatly in the pan thereby avoiding damage to the ribs
  • Can be “reverse run” and the swage removed for use as a wall cladding
  • Lap can be altered in the reverse run process to ensure improved aesthetics and water tightness
  • Narrow barge flashing detail over wider pan profiles thereby reducing wind uplift damage
  • Fully tested and proven Multirib fastening patterns provide superior wind loading over other commercial priofiles
  • Excellent water carrying capacity 
  • Equally impressive for both roofing and cladding applications
  • Superior spanning at a 3 degree low roof pitch
  • Supported by wind and concentrated load span design graphs derived from extensive industry test rig trials
Categories / Ranges
Metal Cladding Metal Roofing
Scope of Use
  • For industrial and commercial roofing and cladding projects where both high spanning and a low pitch is required
  • Residential roofing
  • Industrial and commercial horizontal and vertical cladding in both standard and reverse run applications
  • Rural and lifestyle roofing and cladding
  • Drape curving

Metal cladding materials used to construct the building envelope shall be:

  • In accordance with the durability requirements of NZBC B2 suitable for their end use, location and environment as shown in E2/AS1 Table 20, and;
  • Compatible with adjoining materials as shown in E2/AS1 Table 21 and Table 22; and
  • Meet NZ Metal Roof and Wall Cladding code of practice.
3° Minimum Roof Pitch Required
Statement of Building Code Compliance

Multirib will, if employed in accordance with the supplier's installation and maintenance requirements, assist with meeting the following provisions of the building code:

Clause B2 - Durability: Performance B2.3.1(b)

Clause E2 - External moisture: Performance E2.3.1, E2.3.2

Selection of the correct grade of material and appropriate surface coating is imperative to ensure Multirib performs satisfactorily in the environment it is to be installed, meeting the requirements of The NZ Building Code. 

B2 Durability compliant
E2 External Moisture compliant
External Moisture
Product Assurance
Atmospheric Environments Usage Guide
Data Sheet
Environmental Information
Maintenance Instructions
NZ Metal Roof and Wall Cladding Code of Practice
Product Technical Statement
Other Literature
Colour Range
Selection Guide

Roofing Industries is a 100% New Zealand owned and operated metal roof and cladding manufacturing business.

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