Description

Innova™ Stratum™ and Stratum™ Duo Cavity Cladding Systems are designed to be used as cavity-based, external wall cladding systems for residential and light commercial type buildings where domestic construction techniques are used.

Innova™ Stratum™ and Stratum™ Duo Cavity Cladding Systems consist of Innova™ Stratum™ and Innova™ Stratum™ Duo fibre cement planks adhesive and brad fixed over structural timber battens to form a cavity.  The fibre cement planks are finished with an acrylic paint system.

Scope

1. The Innova™ Stratum™ and Stratum™ Duo Cavity Cladding Systems have been appraised as an external wall cladding system for buildings within the following scope:

• the scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1; and,
• constructed with timber framing complying with the NZBC; and,
• with a risk score of 0-20, calculated in accordance with NZBC Acceptable Solution E2/AS1, Table 2; and
• situated in NZS 3604 Wind Zones up to, and including Extra High.

2. The Innova™ Stratum™ and Stratum™ Duo Cavity Cladding Systems have 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, Paragraph 1.1 with regard to building height and floor plan area; and,
• constructed with timber framing complying with the NZBC; and,
• situated in specific design wind pressures up to a maximum design differential ultimate limit state (ULS) of 2.5 kPa.

3. The Innova™ Stratum™ and Stratum™ Duo Cavity Cladding Systems must only be installed horizontally on vertical surfaces.

4. The Innova™ Stratum™ and Stratum™ Duo Cavity Cladding Systems have 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™ and Stratum™ Duo Cavity Facade Systems will rely on the joinery meeting the requirements of NZS 4211 for the relevant Wind Zone or wind pressure.)