Hydestone® Schist Wall Cladding System
Appraisal Number: 508 (2006)
IMPORTANT NOTICE!
Registration is now required to access the Hydestone Schist Wall Cladding System, see below to register
The Hydestone Schist Wall Cladding System is to be only used with Hydestone Products
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Introduction
The design and installation of Schist Veneer walls in New Zealand, while not new, does require some serious thought with regards to the structural and weathertightness performance of the system. With the introduction of 20 mm cavities for light weight cladding systems covered by NZBC Acceptable Solution E2/AS1, there may be the temptation to assume that the installation of schist veneer over cavities constructed in accordance with E2/AS1 will solve all of the issues that need to be addressed. This was not the belief of Hydestone Ltd and led this company to seek verification and Appraisal of the Hydestone® Schist Wall Cladding System by BRANZ. The evaluation of the Hydestone® Schist Wall Cladding System against the BRANZ developed criteria resulted in the issue of BRANZ Appraisal No. 508 (2006) for the system.
Appraisal
The Hydestone® Schist Wall Cladding System consists of Hyde Brown or Hyde Grey schist stone, installed over a 45 mm, vented, wet cavity system. It can be installed on residential and light commercial buildings where domestic construction techniques are used. The Hydestone® Schist Wall Cladding System has been appraised for use as a veneer wall cladding system for buildings within the following scope:
- * the scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1 in terms of floor area; and
- * with a risk score of 0-20, calculated in accordance with NZBC Acceptable Solution E2/AS1, Table 2; and
- * the scope limitations of NZS 3604 Section 11.7; and on slab on ground and foundation walls constructed in accordance with NZS 3604 and as modified in the Technical Literature; and
- * constructed with timber framing complying with the NZBC; and
- * situated in NZS 3604 Building Wind Zones up to, and including, 'Very High'.
For more information...
If you would like to find out more about the Hydestone® Schist Wall Cladding System you can contact us using the below details:
- Phone: 03 488 3499
- Fax: 03 488 2137
- Email: Go to our Contact Page