Description

Shera Weatherboard Cavity Cladding is a cavity-based fibre cement weatherboard wall cladding. It is designed to be used as an external cladding system for residential and light commercial type buildings where domestic construction techniques are used.

Shera Weatherboard Cavity Cladding consists of Shera weatherboards, either bevelback or flat back, fibre cement weatherboards which are fixed over timber battens to form a cavity. The cladding is finished with a latex paint system.

Scope

Timber Framing

1. Shera Weatherboard Cavity Cladding has been appraised as an external wall cladding for timber-framed buildings within the following scope:

• the scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1 for timber-framed buildings; 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

2. Shera Weatherboard Cavity Cladding 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, Paragraph 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.

Concealed Screw Fixing

3. Shera Weatherboard Cavity Cladding has also been appraised as an external wall cladding for timber and steel-framed buildings using a concealed screw fixing within the following scope.

• the scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1 for timber-framed buildings; or,
• the scope limitations of NASH Building Envelope Solutions, Paragraph 1.1 for steel-framed buildings; and,
• with a risk score of 0-20, calculated in accordance with NZBC Acceptable Solution E2/AS1, Table 2 or NASH Building Envelope Solutions; and,
• situated in NZS 3604 or NASH Standard Part 2 Wind Zones up to, and including, Very High.

General

4. Shera Weatherboard Cavity Cladding must only be installed horizontally on vertical surfaces.

5. Shera Weatherboard Cavity Cladding 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 Shera Weatherboard Cavity Cladding relies on the joinery meeting the requirements of NZS 4211 for the relevant Wind Zone.