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Cavibat roof battens are used as a roof ventilation system to provide passive ventilation for pitched and skillion roofs. Cavibat has a BRANZ appraisal for use in profiled metal roof applications.
Cavibat Roof Battens are an extruded polypropylene, fluted, non-structural, ventilated batten designed to create air flow ventilation to the roof space. These next generation battens provide a rigid, open cell, ventilating batten.
The batten creates an 18 mm cavity, providing ventilation above roof purlins, above or below the building wrap 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 when utilised above the wrap.
Cavibat Roof Battens have been appraised for use as non-structural roof battens for use with pitched and skillion roof construction on buildings within the following scope:
the scope of limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1 with regards to building height and floor plan area; and,
Cavibat Roof Battens must only be used under long run metal roof claddings that meet the requirements of the NZBC.
Cavibat Roof Battens must be considered as non-structural roof battens (ventilation spacers) only. Roof fixings must take into account the thickness of the battens for roof fixing penetration into the supporting structure. Installation must always be carried out in accordance with the Cavibat Roof Battens Technical Literature and the BRANZ Appraisal by, or under the supervision of, a License Building Practitioner (LBP) with the relevant Licence Class.
In the opinion of BRANZ, Cavibat Cavity Battens if designed, used, installed and maintained in accordance with the statements and conditions of this Appraisal, will meet or contribute to meeting the following provisions of the NZBC:
Cavibat Roof Battens must only be used under long run metal roof claddings that meet the requirements of the NZBC, such as those covered by NZBC Acceptable Solution E2/AS1. All flashing details must comply with NZBC Acceptable Solution E2/AS1 or to a specific design.
Cavibat Roof Battens, when installed in accordance with the Technical Literature and this Appraisal, will not adversely affect the total roof cladding system’s compliance with NZBC Acceptable Solution E2/AS1.
Cavibat protects a building's integrity by providing a cavity batten that acts as a total moisture barrier and thermal break between the external cladding and the framework.Product Enquiries
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