A cranked, telescopic, adjustable offset ventilation duct for use in cavity walls.
A cavity, cranked, telescopic ventilation duct providing an air route from a conventional airbrick to an internal area at a different level.
Features and Benefits:
F30/17 Ventilation ducts in external walling
F30/171 Ventilation ducts in external walling
Installing ventilation ducts in external walling.
Type TAV ventilation duct
Inlet/ outlet vertical offset dimension
Horizontal extension to lower TAV aperture
TAV to round convertor.
With 100 mm nominal plastics pipe (pipe specified elsewhere).
DPC Cavitray (cavity tray) for TAV
To special order.
Open air space
Maximum free air provision when used with Cavibrick.
Inlet/ vertical offset dimension.
TAV provides a range of dimensions from 225 mm to 370 mm. Greater offset dimensions can be achieved by the addition of intermediate sleeves available in standard lengths of 300 mm and 450 mm. Special lengths are available to order.
Horizontal extension to lower TAV aperture.
Where a horizontal extension is required a 600 mm long extension sleeve is available. For greater extension distances a TAV to round connector used with 100 mm (nominal) plastics pipe is recommended.