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BEVELBACK WEATHERBOARD CAVITY SYSTEM

2.0

Design Information

2.1

Design Responsibility

The Specifier for the project must ensure that the details in this literature are suitable for the intended application and that additional detailing is provided for specific design or any areas that fall outside the scope and specifications of this literature.

2.2 Scope

This specification covers the use of the Hermpac Bevelback and Rebated Bevelback Weatherboard Cavity System as an external horizontally fixed wall cladding system for buildings within the following scope:

  • the scope limitations of NZBC Acceptable System E2/AS1, Paragraph 1.1; and,

  • constructed with timber framing complying with the NZBC; and,

  • with a risk score of 0-20, calculated in accordance with NZBC Acceptable

Solution E2/AS1, Table 2; and,

  • situated in NZS 3604 Building Wind Zones up to, and including ‘Very High’.

This specification also covers the weathertightness and structural wind loading of the Hermpac Bevelback and Rebated Bevelback Weatherboard Cavity System when used on timber framed buildings subject to specific design up to a design differential ultimate limit state (ULS) wind pressure of 2.5 kPa.

For applications which are outside the scope of this literature and details which are not in this literature the specifier must ensure that the design meets the relevant performance requirements of the NZBC.

Herman Pacific Limited recommends that professional design advice is sought in these circumstances.

2.3

Building Regulations

The Hermpac Bevelback and Rebated Bevelback Weatherboard Cavity System if designed, used and installed in accordance with the statements and conditions of this literature and the supporting BRANZ Appraisal, will meet the following provisions of the New Zealand Building Code:

x Clause B1 Structure x Clause B2 Durability x Clause E2 External Moisture x Clause F2 Hazardous Building Materials

First Edition

Published: September 2009

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