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Appraisal number: 800 (2020)

Date issued: 15 May 2020

Flashclad Horizontal Weatherboard Cavity Cladding System

Description

The Flashclad Horizontal Weatherboard Cavity Cladding System is a cavity-based, interlocking powder coated aluminium weatherboard system. It is designed to be used as an external wall cladding system for residential and commercial type buildings where domestic construction techniques are used.

The system includes horizontally fixed BEVELBORD, DUALBORD and EUROBORD weatherboards, internal and external corner flashings, starter strips, cladding jointers, joinery flashings and accessories.

Scope

Timber framing

The Flashclad Horizontal Weatherboard Cavity System has been appraised as an external wall cladding for timber-framed buildings within the following scope:

  • The scope limitations of NZBC Acceptable Solution E2/AS1 paragraph 1.1 for timber-framed buildings.
  • With a risk score of 0-20 calculated in accordance with NZBC Acceptable Solution E2/AS1 Table 2.
  • Situated in NZS 3604 wind zones up to and including extra high.

Steel framing

The Flashclad Horizontal Weatherboard Cavity System has also been appraised as an external wall cladding for steel-framed buildings within the following scope:

  • The scope limitations of NASH Building Envelope Solutions paragraph 1.1 for steel-framed buildings.
  • With a risk score of 0-20 calculated in accordance with NASH Building Envelope Solutions.
  • Situated in NASH Standard Part 2 wind zones up to and including extra high.

Specific design

The Flashclad Horizontal Weatherboard Cavity System has also been appraised for weathertightness and structural wind loading when used as an external wall cladding system for buildings within the following scope:

  • The scope limitations of NZBC Acceptable Solution E2/AS1 paragraph 1.1 for timber-framed buildings or NZBC Acceptable Solution E2/AS4 NASH Building Envelope Solutions paragraph 1.1 for steel-framed buildings.
  • Constructed with framing subject to specific engineering design.
  • Situated in specific design wind pressures up to a maximum design differential ultimate limit state (ULS) of 2.5 kPa.

General

The Flashclad Horizontal Weatherboard Cavity System must only be installed horizontally on vertical, flat surfaces.

The Flashclad Horizontal Weatherboard Cavity System is appraised for use with aluminium window and door joinery that is installed with vertical jambs and horizontal heads and sills. (Note: The Appraisal of the Flashclad Horizontal Weatherboard Cavity System relies on the joinery meeting the requirements of NZS 4211 for the relevant wind zone or design wind pressure.)

Technical literature

Bevelbord installation details

  • Head - Revision 01 December 2015
  • Jamb - Revision 01 December 2015
  • Sill - Door or Window at Floor Level - Revision 01 December 2015
  • Sill - Revision 01 December 2015
  • Soffit Dado - Revision  01 December 2015
  • Base Starter & Cavity Closure - Revision 01 December 2015
  • External Corner - Revision 01 December 2015
  • Internal Corner - Revision 01 December 2015
  • Interstorey Junction - Revision 01 December 2015
  • Meter Box Head - Revision 01 December 2015
  • Meter Box Jamb - Revision 01 December 2015
  • Meter Box Sill - Revision 01 December 2015
  • Gutter to Wall Junction - Revision 01 December 2015
  • Raking Eave Junction - Revision 01 December 2015
  • Parallel Apron Flashing - Revision 01 December 2015
  • Raking Apron Flashing - Revision 01 December 2015
  • Garage Head - Revision 01 December 2015
  • Garage Jamb - Revision 01 December 2015
  • Pipe Penetration - Revision 01 December 2015
  • Enclosed Balcony Base - Revision 01 December 2015
  • Balustrade Wall Junction - Revision 01 December 2015

Dualbord installation details

  • Head - Revision 1 December 2015
  • Jamb - Revision 1 December 2015
  • Sill - Door or Window at Floor Level - Revision 23 November 2015 
  • Sill - Revision 23 November 2015
  • Soffit Dado - Revision 23 November 2015
  • Base Starter & Cavity Closure - Revision 24 November 2015
  • External Corner - Revision 23 November 2015
  • Internal Corner - Revision 23 November 2015
  • Interstorey Junction - Revision 24 November 2015
  • Meter Box Head - Revision 23 November 2015
  • Meter Box Jamb - Revision 23 November 2015
  • Meter Box Sill - Revision 23 November 2015
  • Gutter to Wall Junction - Revision 23 November 2015
  • Raking Eave Junction - Revision 23 November 2015
  • Parallel Apron Flashing - Revision 24 November 2015
  • Raking Apron Flashing - Revision 24 November 2015
  • Garage Head - Revision 23 November 2015
  • Garage Jamb - Revision 23 November 2015
  • Pipe Penetration - Revision 23 November 2015
  • Enclosed Balcony Base - Revision 24 November 2015
  • Balustrade Wall Junction - Revision 23 November 2015

Eurobord installation details

  • Head - Revision 20 October 2015
  • Jamb - Revision 20 October 2015
  • Sill - Door or Window at Floor Level - Revision 20 October 2015
  • Sill - Revision 20 October 2015
  • Soffit Dado - Revision 06 November 2015
  • Base Starter & Cavity Closure - Revision 20 October 2015
  • External Corner - Revision 20 October 2015
  • Internal Corner - Revision 06 November 2015
  • Interstorey Junction - Revision 20 October 2015
  • Meter Box Head - Revision 20 October 2015
  • Meter Box Jamb - Revision 20 October 2015
  • Meter Box Sill - Revision 06 November 2015
  • Gutter to Wall Junction - Revision 20 October 2015
  • Raking Eave Junction - Revision 20 October 2015
  • Parallel Apron Flashing - Revision 20 October 2015
  • Raking Apron Flashing - Revision 20 October 2015
  • Garage Head - Revision 20 October 2015
  • Garage Jamb - Revision 20 October 2015
  • Pipe Penetration - Revision 20 October 2015
  • Enclosed Balcony Base - Revision 20 October 2015
  • Balustrade Wall Junction - Revision 20 October 2015

Specifications

  • Masterspec 2015 AUG Specification - 4241FB Flashclad Bevelbord Aluminium Cladding
  • Masterspec 2015 AUG Specification - 4241FD Flashclad Dualbord Aluminium Cladding
  • Masterspec Specification - 4241FE Flashclad Eurobord Aluminium Cladding

Consenting instructions

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

Appraisal holder

Flashclad NZ Ltd
Address:
Phone: 0800 55 66 00

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