Technical Statement
Product Description
Scope of use
The ITI Timspec CertClad Rusticated cavity based weatherboard system has been developed for use on buildings in NZ within the scope of NZ building code Clause E2/AS1.
This system can be installed on buildings in NZ with a risk score of 0 - 20 (calculated in accordance with E2/AS1 Table 2) and wind zones up to and including Very High.
New Zealand Building Code (NZBC)
The product will, if employed in accordance with the supplier's installation and maintenance requirements, assist with meeting the following provisions of the building code:
- Clause B1 Structure: Performance B1.3.1, B1.3.2
- Clause B2 Durability: Performance B2.3.1(b)
- Clause E2 External moisture: Performance E2.3.2, E2.3.5
Evidence
The product meets the requirements set out in the following documents, or relevant parts of cited standards within the documents:
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Supporting evidence
The product has and can make available the following additional evidence to support the above statements:
Use in Service History
ITI Timspec (formerly Timspec) was established in 1989. All weatherboard timber profiles have been used in the NZ market since inception.
Product Criteria
Design requirements
The ITI Timspec CertClad Bevel Back Weatherboard system must be installed on buildings in NZ with a risk score of 0 - 20 calculated in accordance with E2/AS1 Table 2, and in wind zones up to and including Very High.
Installation requirements
The ITI Timspec CertClad Bevel Back Weatherboard system must be installed in accordance with the ITI Timspec installation manual.
Check www.certclad.co.nz for latest version.
Maintenance requirements
The ITI Timspec CertClad Bevel Back Weatherboard system must be maintained in accordance with the ITI Timspec installation manual guidelines.
Coatings and finishes must also be applied and maintained in accordance with the relevant coating manufacturer's specifications.
Warrantees
ITI Timspec Weatherboard systems must meet a minimum of 15 years durability as outlined in the New Zealand Standard 3602.
However, where required ITI Timspec can offer an extended warranty on a site-specific basis.
Environmental
ITI Timspec Accoya and Radiata Pine can be supplied with full FSC chain of custody certification, and Western Red Cedar can be supplied with Full PEFC chain of custody certification.
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Date last validated:
20 February 2023 |
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Date last updated:
20 February 2023 |