The size of the vent ridge should be determined in accordance with the Building Code of Australia, and any relevant state building requirements. In general the minimum ventilation required of a building is 5% of its floor area (section F4, Vol.1, Building Code of Australia 2006).
|Material / Finish||Conforming to||BMT (mm)||Colour|
|ZINCALUME® Steel||AS 1397 G300 - AM125||0.50||-|
|COLORBOND® Steel||AS 1397 G300 - AM100 and AS 2728||0.50||As Selected|
|COLORBOND® Ultra Steel||AS 1397 G300 - AM150 and AS 2728||0.55||As Selected|
|COLORBOND® Stainless Steel||Grade 430 base 300||0.45||As Selected|
|Heritage Galvanised||AS 1397 G300 - Z600||0.50||-|
Available Sizes for Vent Ridge (mm)
The brackets for throat sizes 125, 150 and 200mm are made in 2mm gauge material. Throat sizes 300mm and above are made in 3mm gauge material.
Optional Baffle Flashing
The installation of a baffle flashing is recommended where roofing is subject to strong winds or severe weather conditions.