James Hardie Rigid Air Barriers

Appraisal number 611
Issued
Last updated 15 May 2026
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Description

James Hardie Rigid Air Barriers are a range of rigid wall underlay materials including RAB™ Board and HomeRAB™ Pre-Cladding. They are sealed fibre-cement sheets designed for use as rigid wall underlay behind wall cladding systems. HomeRAB™ Pre-Cladding and RAB™ Board are manufactured using a medium-density fibre-cement formulation.

Consenting instructions

Always refer to the Appraisal in full and the technical literature.

Appraisal holder

James Hardie New Zealand Ltd

warehouse
PO Box 12 070, Penrose, Auckland
phone_enabled 0800 808 868