Description

The Celcrete 50 mm Panel Veneer Cavity Cladding System is a cavity-based external wall cladding system for residential and light commercial type buildings where domestic construction techniques are used. 

The system consists of autoclaved aerated concrete (AAC) panels fixed either over timber battens to form a 20 mm or 40 mm cavity when fixed to timber framing, or fixed over EPS battens to form a 20 mm cavity when fixed to steel framing.  The coating system consists of a minimum 5 mm thickness of fibreglass mesh reinforced polymer-modified plasters.  The plaster system is finished with a 100% acrylic exterior paint system.  The top coat plasters can be finished to give different texture appearances.

The system incorporates a primary and secondary means of weather resistance (first and second line of defence) against water penetration by separating the cladding from the external wall framing with a nominal 20 mm or 40 mm drained cavity. 

Scope

Timber Framing

The Celcrete 50mm Panel Veneer Cavity Cladding System has been appraised as an external wall cladding system for timber-framed 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.

Steel Framing

The Celcrete 50mm Panel Veneer Cavity Cladding System has also been appraised as an external wall cladding for steel-framed buildings within the following scope:

• the scope limitations of NASH Building Envelope Solutions Parahraph 1.1 for steel framed buildings; and,
• with a risk score of 0-20, calculated in accordance with NASH Building Envelope Solutions; and,
• situated in NASH Standard Part 2 Wind Zones up to, and including Extra High.

Specific Design 

The Celcrete 50mm Panel Veneer Cavity Cladding System has also been appraised weathertightness and structural wind loading when used as a wall cladding for buildings withing the following scope:

• the scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1 with regards to building height and floor plan area; and
• constructed with timber or 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.

General

The Celcrete 50mm Panel Veneer Cavity Cladding System must only be installed on vertical surfaces (except for tops of parapets, sills and balustrades, which must have a minimum 10^o slope and be waterproofed in accordance with the Technical Literature).

The 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 Celcrete 50 mm Panel Veneer Cavity Cladding System relies on the joinery meeting the requirements of NZS 4211 for the relevant Wind Zone or design wing pressure.)

Installation of components and accessories supplied by Celcrete Cladding Systems NZ Ltd must be carried out only by Celcrete Cladding Systems Ltd approved applicators.