These spark arresting vents meet Australian Standard AS3959-1999. There are three levels of bush fire attack with level 1 being moderate, level 2 high and level 3 extreme. Our vents are made to meet level 3 standards with a 316 stainless steel wire and an aperture of 1.65mm.

The 390x190 mm vent, with 316 stainless steel spark arresting 1.65mm aperture x .45mm diameter wire gives 17,400 Sq mm of ventilation per vent.

Ventilation plays a key role in keeping mould and mildew out of your home. Having adequate cross flow ventilation in your sub-floor helps prevent, cure or reduce timber decay, cupping of floor boards, and risk of termite attack. Aleta Vents also allow natural light into your sub-floor making it less desirable for termites and other nasties. Aleta's Stainless Steel Mesh. A 230 x 160 mm vent, which provides 9,800 Sq mm of ventilation per vent.