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InteriorInterior
IBuilt CoreClad
Description

IBuilt CoreClad panels are manufactured from both Hoop Pine and Klinkii Pine, which have been grown from sustainably managed plantation forests.

Individual veneers are ACQ treated to meet hazard class H3.2 and then manufactured into plywood sheets by bonding the treated veneers with a Type A structural marine bond. The plywood sheets are machined, band sawn, grooved (if required) and ship-lapped to form the finished cladding panel.

The manufacture of IBuilt CoreClad is third party certified by EWPAA to meet AS/NZS 2269:2012-Plywood Structural Standard.

IBuilt CoreClad panels are supplied Grade S-D, F14 in the following dimensions:

  • Sheet thickness: 12mm
  • Sheet length: 2440, 2745, 3050mm
  • Sheet width: 1200mm (cover), 1220 (overall)
  • Sheets available: Textured Grooved 150 and Textured
  • Sheets available: Primed
Key Features
  • CoreClad Primed can be painted dark colours when following the Painting Dark Colours Guidelines (click on the performance tab)
  • Individual veneer treatment before manufacture ensures treatment to the core
  • Cut edges do not need to be re-treated
  • Available in 2440, 2745, and 3050mm long sheets
  • Band sawn face for a rough textured finish
  • Manufactured from high strength plantation pine (F14)
  • Manufactured to AS/NZS 2269: 2012. Third party Certified by the EWPAA
  • Meets the Durability requirements of the NZBC for claddings
  • Install to E2/AS1 NZBC
Scope of Use
  • CoreClad panels are for use as external cladding
  • In wind zones up to extra high, as defined in NZS 3604:2011 or to a design wind pressure (ULS) of 2.5kPa
  • In all corrosion zones as defined in NZS 3604:2011
  • In conjunction with a primary structure that complies with the NZ Building Code, or where the designer and/or installer has established that the existing structure is suitable for the intended building work
  • CoreClad may be direct fixed or installed over a drained, ventilated cavity
Limitations on Use
  • Where adverse microclimatic conditions apply, as set out in paragraph 4.2.4, NZS 3604:2011, contact IBUILT for technical advice
  • Must be located further than 1m from a relevant boundary
  • The building is to fall within the scope of E2/AS1 paragraph 1.1 for building height and floor area
  • Direct fixed only applies where the elevation has a risk score of 6 or less (refer table 3, E2/AS1)

Important Installation Requirements

To ensure CoreClad® performs as required, the following must be carried out during installation.

  • Product must be fully dry (15% or less moisture content) before priming or painting.
  • Nails must not be over-driven.
  • All factory and cut edges, including 150mm up rear of sheet must be fully primed before painting.

Failure to follow these requirements may affect the long term durability and void warranty.

Statement of Building Code Compliance

If designed, installed and maintained in accordance with all IBUILT requirements, CoreClad will comply with or contribute to compliance with the following performance claims:

  • B1 Structure: B1.3.1, B1.3.2, B1.3.3 (a, b, f, h, j, m, q), B1.3.4 (a, b, c, d, e)
    Alternative Solution AS/NZS 2269:
    • Plywood manufactured to AS/NZS 2269 is referenced in E2/AS1 for use as a rigid air barrier and external cladding. This implies that plywood to this standard will have the necessary structural integrity for those uses.
  • B2 Durability: B2.3.1(b), B2.3.1(b)
    Verification Method:
    • B2/VM1: cl1.3 Verification through comparison with a similar material
    • AS/NZS1604.3, para 1.9 requires same characteristic values for penetration & retention as defined in NZS 3640:2003
    • IVS test results show these values are met
  • E2 External Moisture: E2.3.2, E2.3.5, E2.3.7 (a, b, c)
    Acceptable Solution E2/AS1
    • Installation to section 9.8
  • F2 Hazardous Building Materials: F2.3.1
    Alternative Solution
    • PNG Forest Products Treatment Protocol
Other Performance Attributes

Don’t be afraid of the dark — Painting Dark Colours.

One of the distinct advantages of using IBuilt™ CoreClad® Primed as exterior cladding is the ability to paint it in any number of today’s fashionably dark colours. Even black. However, to ensure maximum product performance, long life and to have dark coloured exterior cladding look its best year after year, it is critical to follow these criteria:

  • CoreClad® Primed must be used. Every sheet is pre-primed at the factory to ensure correct primer coverage and opacity is achieved.
  • 3 topcoats must be applied. Not only will your exterior cladding look better it will perform better too.
  • Use Resene CoolColour™ or Dulux Weathershield® Colourguard™ for best results and always follow paint manufacturer’s instructions.
  • Carry out regular paint maintenance. The use of dark paint colours requires an increase in coating maintenance over the lifetime of the cladding, compared to lighter colours.
PASS
PASS
PEFC Certified
PEFC Certified
Documents
PASS Product Statement: CoreClad

No 19015/2027

Installation & Design Guide: CoreClad

November 25

CoreClad Flyer

08/2023

Drawings: Installation Details
Warranty, Care & Maintenance Guide: CoreClad

2023

Brochure

May 2025

Additional information
Handling and Storage Information

2025

New Zealand Wood Products Ltd is a supplier of IBuilt engineered timber, glulam, plywood and associated materials.

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