Product Overview:
CoreClad® textured, ACQ treated plywood cladding offers superior strength, durability, and reliability. With sheets up to 3 metres long and no requirement to retreat cut ends, CoreClad® is fast and easy to install.
Plywood veneer is peeled from the log on a rotary lathe, dried, treated then manufactured into plywood by placing veneers in a perpendicular orientation. Sheets are bonded with a permanent phenolic resin which is commonly referred to as a Type 'A' structural bond. The bond will not break down under heat, wet, or cold conditions. The resulting sheets are then machined, rough-sawn, grooved and ship-lapped to form the finished cladding sheet.
CoreClad® has a 'pass™' (Product Assurance Supplier Statement). A pass™ makes a clear, rigorous statement that CoreClad® complies with all the necessary regulations and legislation. It also summarises CoreClad's purpose, the scope of its use and any limitations.
FEATURES AND BENEFITS OF CORECLAD®
- Each veneer is treated before it is manufactured into CoreClad®. This ensures the cladding is treated to the core. This improves durability as well as speeding up installation, as cut ends do not need to be re-treated.
- Available in 2440, 2745, and 3050mm length sheets* potentially eliminating the need for flashings, saving time and money.
- Available with a band-sawn face for a rough textured finish, with, or without grooves (Groove150 or Textured), in natural or primed.
- Made from high-strength plantation pine (F14) and manufactured to AS/NZS 2269:2012. It is third-party certified by the Engineered Wood Products Association of Australasia (EWPAA).
- Meets the Durability requirements of the NZBC for claddings.
- Install to E2/AS1 NZBC.
CORECLAD® PRIMED
FEATURES AND BENEFITS
- CoreClad® Primed uses a factory applied premium acrylic primer which provides an optimal base coat for acrylic topcoat systems.
- This eliminates the need for a primer coat to be applied once installed, saving time.
- Once installed, the primer provides protection against moisture, allowing the topcoats to be applied sooner.
- Face, edges, and bottom 150mm of the back of the sheet are fully primed, allowing for faster onsite installation.
- CoreClad® Primed can be painted immediately after installation.
* A scarf joint is used to joint 2440mm long sheets with either a 305 or 610mm extension to produce 2,745mm or 3,050mm length sheets. The scarf joint has a visible dark line going across the panel and the two sections may have colour differences.
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 you 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.
- Use Dulux Weathershield® Colourguard™ or Resene CoolColour™ for best results and always follow paint manufacturer’s instructions. The Resene CoolColour™ system requires Resene's specified primer to be used over the top of the primer coating on CoreClad® Primed.
- 3 topcoats must be applied. Not only will your exterior cladding look better it will perform better too.
- 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.
Flashing compatibility with CoreClad
Bi-metallic corrosion can occur when dissimilar metals interact in the presence of moisture, accelerating the deterioration of the less corrosion-resistant material. Copper-based timber preservatives such as ACQ and CCA can react aggressively with aluminium, so direct contact must be avoided by selecting compatible flashings or providing a durable separation barrier.
The flashing material should suit the specific detail, exposure zone, durability requirements, and compatibility with all adjoining materials. Resolve any project-specific compatibility questions before installation.
Design and install flashings in accordance with the applicable requirements of E2/AS1, paragraphs 9.8.4 and 9.8.5. Check the compatibility of adjoining materials against Tables 21 and 22.
The following flashing materials may be considered for use with ACQ-treated CoreClad plywood:
- Stainless steel: Stainless steel provides strong resistance to the bi-metallic corrosion risk associated with copper-based preservative treatments. Select a stainless-steel grade suited to the project environment and refer to the CoreClad Stainless Steel Flashing care and maintenance flyer.
- Powder-coated aluminium (with separation barrier of at least 200 microns): Powder-coated aluminium may be used where direct contact with ACQ-treated CoreClad is prevented. Maintain a continuous physical separation barrier of at least 200 microns, achieved by using DPC or flashing tape, between the plywood and the flashing. Detailing and installation should avoid damage to the coating and prevent moisture from being trapped at the interface.
- PVC: PVC is non-metallic and is not subject to corrosion from the copper-based treatment. PVC can be used in concealed locations such as cavity closers and corner flashings.
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.
IBuilt™ CoreClad® is manufactured by PNG Forest Products
PO Box 76412, Bulolo, Papua New Guinea
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