The Nu-Wall Aluminium Cladding System — Horizontal on Cavity has been appraised as an external wall cladding 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.

The Nu-Wall Aluminium Cladding System — Horizontal on Cavity has also been appraised for weathertightness and structural wind loading when used as an external horizontally fixed 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 and steel 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.

See BRANZ Appraisal 550 for full information.

• The Nu-Wall Aluminium Cladding System — Horizontal on Cavity must only be installed horizontally on vertical, flat surfaces
• The tops of parapets and balustrades must have a minimum 5º slope and be waterproofed with metal cap flashings in accordance with the Technical Literature
• The Nu-Wall Aluminium Cladding System — Horizontal on Cavity is appraised for use with aluminium window and door joinery that is installed with vertical jambs and horizontal heads and sills. (Note: The Appraisal relies on the joinery meeting the requirements of NZS 4211 for the relevant Wind Zone, or wind pressure)

In the opinion of BRANZ, the Nu-Wall Aluminium Cladding System — Horizontal on Cavity, if designed, used, installed and maintained in accordance with the statements and conditions of Appraisal 550, will meet the following provisions of the NZBC:

• Clause B1 STRUCTURE: Performance B1.3.1, B1.3.2 and B1.3.4. — meets the requirements for loads arising from self-weight, wind and impact [i.e. B1.3.3 (a), (h) and (j)]
• Clause B2 DURABILITY: Performance B2.3.1 (b), 15 years
• Clause E2 EXTERNAL MOISTURE: Performance E2.3.2
• Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1

See BRANZ Appraisal 550 for full information.

• Nu-Wall aluminium cladding is guaranteed for 100 years — won't rot, corrode, or warp
• Performs in New Zealand’s harshest locations, including geothermal, alpine and coastal environments
• Easy to maintain — requiring only an occasional wash down
• Factory-applied powder coat finishes are guaranteed for up to 20 years
• Ecologically responsible product — over 80% composed of recycled aluminium
• After a guaranteed life-time of over a 100 years, Nu-Wall cladding can be fully recycled