A cranked, telescopic, adjustable offset ventilation duct for use in cavity wall permitting air intake and one level to be routed to another level.
Plastics in cavity, cranked, telescopic ventilation duct providing a cranked air route from a Cavity Tray Ltd Cavibrick, or conventional airbrick to an internal area at a different level.
Telescopic, adjustable vertical cavity duct extends to a maximum of five brick courses
Intermediate sleeves available to further extend vertical offset between inlet and outlet
Horizontal ducts/ sleeves available to extend the lower aperture
An accompanying damp proof course (DPC) Cavitray (cavity tray) is available to order
For use in cavity walls with a minimum cavity width of 50 mm
F30/17 Ventilation ducts in external walling
F30/171 Ventilation ducts in external walling
Inlet/ outlet vertical offset dimension
As shown on drawings
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.
Standard product features
Maximum free air provision when used with Cavibrick:
Inlet/ outlet 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.