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Description

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.

Use:

  • To provide a direct flow air ventilation route from outside to inside of a building.
  • To vent methane, radon and other gases trapped beneath a gas barrier to the outside of a building.
  • To discharge trapped water from within a building.
  • Can be used with a conventional airbrick, Cavibrick and internal grille.

Features:

  • 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.

General information
Features

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

Material

BS polypropylene

Uniclass 2015
Ventilation ducts (Pr_30_59_96_92)Primary
Specification data - Ventilation ducts
Product Reference

Type TAV

Inlet/ outlet vertical offset dimension

225 mm

370 mm

As shown on drawings

Intermediate sleeves

Not required

300 mm

450 mm

___ mm

Special order.

Horizontal extension to lower TAV aperture

Not required

600 mm

TAV to round convertor with 100 mm nominal plastics pipe (pipe specified elsewhere)

DPC Cavitray (cavity tray) for TAV

Not required

Required

To special order.

Standard product features

Material:

BS polypropylene.

Colour:

Black.

Maximum free air provision when used with Cavibrick:

7,500 mm².

Product Options

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.

Literature
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