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RAB Board
Description

RAB Board is a pre-sealed, cost effective rigid air barrier for use in medium to high-rise construction. Designed for use in Extra High wind zones and in Specific Engineered Design projects exposed to high wind pressure. An alternative to traditional building underlays. The unique green panel has a built in air and water resistant barrier to keep moisture out, while still allowing the moisture vapour to pass through allowing framing cavity to dry.

RAB Board 6mm

Is a 6mm thick fibre cement sheet which is sealed on the face and edges and is suitable for use as a rigid air barrier in Extra High (EH) wind zones or in wind pressures up to 4.5kPa.

RAB Board 9mm

Is a 9mm thick fibre cement sheet which is sealed on the face and edges and is suitable for use as a rigid air barrier in Extra High (EH) wind zones or in wind pressures up to 4.5kPa.
RAB Board 9mm is suitable for specific design shear wall for residential or commercial applications where the structural design requires strong/stiffer shear walls.

Product Profile:

6mm thick 

  • 1200mm wide
  • 2450mm, 2750mm or 3000mm long

9mm thick 

  • 1200mm wide
  • 2450mm, 2750mm or 3000mm long
Key Features
  • Provides a drainage plane for cavity construction
  • Superior acoustic performance
  • Increases the overall rigidity of the structure, minimising structural movement
  • Presealed on the face and edges to resist moisture penetration
  • Quick installation with a range of sheet sizes
  • Provides excellent temporary weather protection before the final cladding is erected
  • Will not warp or shrink and can be exposed for up to 180 days during construction
  • 60 minute fire ratings when installed as per the current James Hardie Fire and Acoustic Design Manual
  • RAB Board is also suitable for bracing
  • Complies with B1, B2, E2, C3.5 and C3.7 of the NZBC
  • BRANZ Appraised
  • Board warranty of 15 years
NZ Made
NZ Made
Scope of Use
  • An alternative to traditional building underlays for use in medium to high-rise construction
  • Designed for use in Extra High wind zones and in Specific Engineering Design projects exposed to high wind pressure
  • RAB Board 9mm is suitable for specific design shear wall for residential or commercial applications where the structural design require strong/stiffer shear walls
  • 60 minute fire ratings when installed as per the current James Hardie Fire and Acoustic Design Manual
  • RAB Board is also suitable for bracing

 

Limitations on Use
  • See BRANZ Appraisal 611 for full information
NZS 3604 Corrosion Zone D suitable
Corrosion Exposure Zone D
NZS 3604 Earthquake Zone Very High suitable
Very High Earthquake Zone
NZS 3604 Wind Zone Specific Design suitable
Specific Design Wind Zone
Statement of Building Code Compliance
  • Clause B1 Structure
  • Clause B2 Durability
  • Clause E2 External Moisture
  • Clause F2 Hazardous Building Materials
  • Clause C3.5 & C3.7 External Vertical Fire Spread

See BRANZ Appraisal 611 for full information

Other Performance Attributes
  • 60 minute fire ratings when installed as per the current James Hardie Fire and Acoustic Design Manual
  • Board warranty of 15 years
B1 Structure compliant
Structure
B2 Durability compliant
Durability
C Protection from Fire compliant
Protection from Fire
E2 External Moisture compliant
External Moisture
F2 Hazardous Building Materials compliant
Hazardous Building Materials
H1 Energy Efficiency compliant
Energy Efficiency
BRANZ Appraised
BRANZ Appraised
Documents
CAD/PDF
Fire and Acoustic Design Manual
Product Technical Statement
Independent Appraisal (BRANZ)
Brochure
Technical Manual
Technical Literature on Supplier Website

James Hardie are an international building materials company and a global producer of fibre cement.

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