Description

The VENT Ventilated Wall and Drainage Cavity Batten is an extuded fluted batten, designed for use as a non-structural cavity batten in cavity-based wall cladding systems. The VENT Ventilated Wall and Drainage Cavity Batten is designed for use with timber-framed buildings.

VENT Ventilated Wall and Drainage Cavity Battens create a minimum 18 mm cavity, providing a secondary means of weather resistance by separating the cladding from the external wall framing, as well as providing an unobstructed path for any occasional ingress of water that may get past the external skin to drain to the exterior of the building.

Scope

1. VENT Ventilated Wall and Drainage Cavity Batten has been appraised for use as non-structural cavity batten for use with non-structural wall cladding systems on timber-framed buildings within the following scope:

• the scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1; and,
• with a risk score of 0-20, calculated in accordance with NZBC Acceptable Solution E2/AS1, Table 2; and,
• with cavity-based wall cladding systems complying with NZBC Acceptable Solution E2/AS1 or a valid BRANZ Appraisal that specifies a nominal 20 mm (minimum 18 mm) drained and vented cavity; and,
• situated in NZS 3604 Wind Zones up to, and including Extra High'.

Note: The VENT Ventilated Wall and Drainage Cavity Batten can also be used on buildings subject to specific weathertightness design. Weathertightness design and detailing of these installations is the responsibility of the designer and is outside the scope of this Appraisal. The VENT Ventilated Wall and Drainage Cavity Batten is not suitable for use where pressure equalized cavities are required.