Hydestone® Schist Wall Cladding System
- Abbreviation
- Appraisal number 508
- Valid from
- 9/11/2020
- Information provider
- BRANZ Limited
- Information type
- BRANZ Appraisal
- Format
Description
The Hydestone® Schist Wall Cladding System consists of Hyde Brown or Hyde Grey schist stone, installed over a vented 40 mm wet cavity system. It can be installed on residential and light commercial buildings where domestic construction techniques are used.
Scope
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 NZBC Acceptable Solution E2/AS1, Section 9.2; and,
- with 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 Wind Zones up to, and including, Extra High.
The Hydestone® Schist Wall Cladding System must only be installed on vertical surfaces.
The Hydestone® Schist Wall 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 Hydestone® Schist Wall Cladding system relies on the joinery meeting the requirements of NZS 4211 for the relevant Wind Zone.)
The Hydestone® Schist Wall Cladding System must only be installed by Stonemasons approved by Hydestone Limited as documented in the Technical Literature.