Vent Ridge

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).

Available Materials

Available Sizes for Vent Ridge (mm)

Vent Ridge Dimensions	Throat	A	B	C	D	E	Suit Contemporary Ridge
	125	125	80	85	70	154	x = 190
	150	150	80	95	90	175	x = 229
	200	200	80	125	80	235	x = 305
	250	250	130	140	100	276	x = 380
	300	300	130	180	125	344	x = 455
	350	250	155	175	130	363	x = 425
	400	300	150	200	140	417	x = 505
	450	300	200	225	190	375	x = 530
	500	320	200	250	195	430	x = 570
	600	300	207	265	150	500	x = 600

Table RGA VR AS 001
Note:
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.