G750N Over Fascia Vent

Over fascia vents offer a practical and cost-efficient solution for ventilating eaves on buildings. They’re easy to install, discreet, and compatible with both timber and Metal fascias.

Specifically designed for structures lacking eaves or soffits and specifically designed for the Australian market, the G750N Over Fascia Vent facilitates airflow into the roof space between the roof membrane and fascia board.

This product exceeds compliance with the National Construction Code 2022 Vol 1: F8D5 / ABCB Housing Provisions Standard 10.8.3, ensuring superior performance.

Compatible with both Concrete Tile and Metal roofs, the G750N is suitable for new construction projects, re-roofing applications, as well as retrofitting.

Its application depends on the pitch and design of the roof construction. The G750N features evenly spaced openings that prevent large insects from gaining access and will achieve BAL compliance up to BAL29 without the application of BAL mesh while allowing airflow to prevent capillary action.

This vent can be used independently or in conjunction with other VENT Systems products to create a comprehensive passive ventilation system.

Features:

• Only 9mm in height at the point of contact with the roof
• <2mm apertures
• No fascia height adjustments required
• Airflow rate of 7,500mm²
• Meets DTS requirements
• Free open area above NCC Requirements of 7,500mm² /lm
  • Redundancy for blockages
  • Average calculations are easier to achieve NCC
• Free open area does not reduce with the application of BAL Mesh – For BAL compliance up to BAL29
• Cost effective
• Designed specifically for fascia
• Load bearing:
  • Designed for concrete tiles
  • Compatible with Metal
• Tested to AS1530.3
  • Spread of flame index 4
  • Smoke developed index 5

For cathedral roof designs, it’s recommended to use the larger VENT Systems Over Fascia Vent 25mm – G2500N/BMG2500N

For application in BAL zones above BAL29, the G750N can be enhanced with an ember guard crafted from non-combustible, corrosion-resistant materials such as steel, bronze, or aluminium mesh. The mesh aperture conforms to Clause 3.6 of AS3959:2018, with a maximum allowable opening of 2 mm.

VENT Systems specialises in ventilation and internal moisture management. Any guidance regarding the G750N and its ember guard should be considered in conjunction with the latest version of AS3959, the National Construction Code, and any applicable local regulations. It’s essential to collaborate with building certifiers, fire engineers, or specialised bush fire consultants to ensure compliance and safety in all applications.