Type TAV Telescopic Air Ventilator
Verified by manufacturer 7 months ago
A cranked, telescopic, adjustable offset ventilation duct for use in cavity walls.
Application
- 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 and internal grille.
- For use in cavity walls with a minimum cavity width of 50 mm.
Description
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:
- 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 cavity tray is available.
General information
Color | Black |
Finish | Textured |
Material | Polypropylene |
Length | 375 mm |
Width | 225 mm |
Height | 375 mm |
Warranty description | 20 year |
Uniclass | |
CAWS | F30/17 Ventilation ducts in external walling F30/171 Ventilation ducts in external walling |
Specification data - Ventilation ducts
Material | Plastics.Guidance for specification option: BS polypropylene. |
Execution | Installing ventilation ducts in external walling. |
Inlet/ outlet vertical offset dimension | 225 mm. 370 mm. As drawing____. |
Intermediate sleeves | Not required. 300 mm. 450 mm. ___ mm. Guidance for specification option: Special order. |
Horizontal extension to lower TAV aperture | Not requried. 600 mm. TAV to round convertor. Guidance for specification option: With 100 mm nominal plastics pipe (pipe specified elsewhere). |
DPC Cavitray (cavity tray) for TAV | Not required. Required. Guidance for specification option: To special order. |
Open air space | 7500 mm². Guidance for specification option: Maximum free air provision when used with Cavibrick. |
Options | Inlet/ vertical offset dimension. Guidance for specification option: 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. Guidance for specification option: 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. |
Sustainability data
Contains Red List materials | No |
Country of material origin | United Kingdom |
Country of product manufacture | United Kingdom |
Recyclability | Yes |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 100 % |
Literature
Ventilation Product Guide
Protecting the Building Envelope Volume 28 (cavity tray, damp proofing, ventilation and cavity closers)