Ventridge

Standard Ventridge

Ventridge provides continuous natural ventilation with effective weather protection under normal weather conditions. It is designed to effectively remove heat, smoke and fumes on an ongoing basis from factories and industrial buildings. It also blends in with a range of building styles due to its low profile.

Dimensions


Dimensions (mm)
A
Throat Size		 B C D E F G
Deck CGI
150 135 155 65 86 50 175 130°
200 152 172 77 135 85 250 140°
300 250 270 140 169 125 330 150°
400 310 330 212 221 188 436 150°
500 400 420 260 270 213 538 150°
600 380 400 290 358 265 682 150°
Note: Deemed to comply drawing number M/609/4. Darwin Building Board approved.

Stratflo Ventridge

Stratflo Ventridge provides continuous natural ventilation with effective weather protection under normal weather conditions. It takes maximum advantage of natural stack action, which is a result of temperature differences between the inside and outside of the factory causing pressure variations resulting in air movement. Heat from plant, personnel, and also solar heat radiating through the roof and walls, warm the inside air which rises and flows out of the building through the ventridge.

Engineering

The strength of the Stratflo Ventridge has been designed and tested in accordance with the appropriate Australian Standards.

Adaptability

Ventridge can be fitted to almost any part of the roof, providing the roof supports are installed at the recommended spacings (refer diagram below). The clear spacing ‘A’ between top purlins must be the ventridge throat width with a tolerance of -0mm to +40mm. Eg, for a 380mm throat ventridge the clear space must be between 380mm and 420mm.


Installation


Material Specifications
Component Base Metal
Thickness (mm)		 Mass/Unit Length of
Ridge Ventilators (kg/m)
Brackets 2.0 G300 Z275
3.0 G300 Z275
Stack Cap, Stack,
Flashing and Shroud		 0.55 G300 Z275

Dimensions

Dimensions
Throat (mm)
A		 Height (mm)
B		 Width (mm)
C		 Mass/Unit Length of
Ridge Ventilators (kg/m)
150 230 390 8
225 325 575 12
300 425 760 16
380 520 960 18
450 605 1130 25
600 810 1510 31
750 1010 1885 52
900 1210 2260 62
Optimum length is 4600mm and maximum recommended length is 7600mm.