Description

The Innova™ Stratum™ Contour Cavity Cladding System is a cavity-based, external wall cladding system.  It is designed to be used as external wall cladding system for residential and light commercial type buildings where domestic construction techniques are used. 

The Innova™ Stratum™ Contour Cavity Cladding System consists of Innova™ Stratum™ Contour fibre cement planks fixed over structural timber battens to form a cavity.  The fibre cement planks are finished with an acrylic paint system.

Scope

Timber Framing

1. The Innova™ Stratum™ Contour Cavity Cladding System has been appraised as an external wall cladding system for buildings within the following scope:

• the scope limitations of NZBC Acceptable Solution E2/AS1; and,
• with a risk score of 0-20, calculated in accordance with NZBC Acceptable Solution E2/AS1; and
• situated in NZS 3604 Wind Zones up to, and including Extra High  determined in accordance with NZS 3604.

Specific Design

2. The Innova™ Stratum™ Contour Cavity Cladding System has also been appraised for weathertightness and structural wind loading when used as an external wall cladding system for buildings within the following scope:

• the scope limitations of NZBC Acceptable Solution E2/AS1 for timber-framed buildings; and,
• constructed with framing subject to specific engineering design; and,
• situated in specific design wind pressures up to a maximum design differential ultimate limit state (ULS) of 2.5 kPa determined in accordance with AS/NZS 1170.2.

General

3. The Innova™ Stratum™ Contour Cavity Cladding System must only be installed horizontally on vertical surfaces.

4. The Innova™ Stratum™ Contour Cavity Cladding System has been 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 Innova™ Stratum™ Contour Cavity Cladding System relies on the joinery meeting the requirements of NZS 4211 for the relevant Wind Zone or wind pressure.)