RAB™ Board

An innovative rigid air barrier to provide defence against wind and moisture in external facades.

Product Details

A 6mm specialised fibre cement rigid air barrier that can be used beneath cladding, providing added protection against the elements. This panel is sealed with James Hardie’s innovative CoreShield™ penetrating sealer technology, keeping water, air and wind out, while allowing moisture vapour to easily escape. Classified as a Class 4 Vapour Permeable Membrane, RAB™ Board is suitable for use in Australian Climate Zones 2 to 8 in accordance with the National Construction Code (NCC) 2022. Easy to install and can be exposed for up to 180 days before installing the cladding.

A 6mm specialised fibre cement rigid air barrier that can be used beneath cladding, providing added protection against the elements. This panel is sealed with James Hardie’s innovative CoreShield™ penetrating sealer technology, keeping water, air and wind out, while allowing moisture vapour to easily escape. Classified as a Class 4 Vapour Permeable Membrane, RAB™ Board is suitable for use in Australian Climate Zones 2 to 8 in accordance with the National Construction Code (NCC) 2022. Easy to install and can be exposed for up to 180 days before installing the cladding....

Product Details

A 6mm specialised fibre cement rigid air barrier that can be used beneath cladding, providing added protection against the elements. This panel is sealed with James Hardie’s innovative CoreShield™ penetrating sealer technology, keeping water, air and wind out, while allowing moisture vapour to easily escape. Classified as a Class 4 Vapour Permeable Membrane, RAB™ Board is suitable for use in Australian Climate Zones 2 to 8 in accordance with the National Construction Code (NCC) 2022. Easy to install and can be exposed for up to 180 days before installing the cladding.

A 6mm specialised fibre cement rigid air barrier that can be used beneath cladding, providing added protection against the elements. This panel is sealed with James Hardie’s innovative CoreShield™ penetrating sealer technology, keeping water, air and wind out, while allowing moisture vapour to easily escape. Classified as a Class 4 Vapour Permeable Membrane, RAB™ Board is suitable for use in Australian Climate Zones 2 to 8 in accordance with the National Construction Code (NCC) 2022. Easy to install and can be exposed for up to 180 days before installing the cladding....

Features & Benefits

Deemed Non-Combustible

Deemed Non-Combustible

Suitable for non-combustible construction

Durable

Durable

Engineered to endure. Hardie™ fibre cement is resistant to fire, termites, rot and damage from moisture.

Speed of Installation

Speed of Installation

Lightweight, easy to cut, and screw or nail to the frame. Joints are simply taped.

Product Specifications

Product Code
Length (mm)
Width (mm)
Thickness (mm)
Effective Cover Per Unit (m2)
Effective Width (mm)
Coverage Per Pack (m2)
Weight Per M2
Weight Per Unit**
Pack Weight (kg)***

402980**

2450

1200

6

2.94

1200

117.6

9

26.6

1080

405131**

2750

1200

6

3.3

1200

132

9

29.8

1215

402981**

3000

1200

6

3.6

1200

144

9

32.5

1325

**Unavailable in WA

** Piece weight covers the physical product weight per plank/sheet.

*** Pack weight includes all product and packaging in a full pallet.