Triclad Lapped Weatherboard Cladding System

The Triclad Lapped Weatherboard Cladding System is a cavity-based or direct-fixed plywood weatherboard wall cladding. It is designed to be used as an external cladding system for residential and light commercial type buildings where domestic construction techniques are used.

The Triclad Lapped Weatherboard Cladding System consists of Triclad weatherboards, which are installed horizontally and simulate the look of traditional bevel-back weatherboards with a bandsawn textured exterior surface. Triclad weatherboards can be installed as a direct-fixed cladding system or over cavity battens to form a drained and vented cavity. Triclad weatherboards are available either unprimed or pre-primed, suitable for finishing with an exterior grade acrylic paint. Triclad weatherboards can also be supplied with the first finishing coat of the selected finishing system applied.

The Triclad Lapped Weatherboard Cladding System has been appraised as a direct-fixed external wall cladding for buildings within the following scope:

• The scope limitations of NZBC Acceptable Solution E2/AS1 paragraph 1.1.
• With a risk score of 0-6, calculated in accordance with NZBC Acceptable Solution E2/AS1 Table 2.
• Situated in NZS 3604 wind zones up to and including very high.

The Triclad Lapped Weatherboard Cladding System has also been appraised as a cavity-based external wall cladding for buildings within the following scope:

• The scope limitations of NZBC Acceptable Solution E2/AS1 paragraph 1.1.
• 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.

The Triclad Lapped Weatherboard Cladding System must only be installed horizontally on vertical surfaces.

The Triclad Lapped Weatherboard Cladding 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 Triclad Lapped Weatherboard Cladding System relies on the joinery meeting the requirements of NZS 4211 for the relevant wind zone.)

Triclad Lapped Weatherboard - Installation Guide and Specification, October 2019

Always refer to the Appraisal in full and the Technical Literature.