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Application

  • For background room ventilation.
  • As a plastic component this item is not suitable for use within the external walls of high-rise buildings requiring non-combustible materials.

Description

Plastic, telescopic cavity liner set, compliant with BS 5250.


Features and benefits:

  • Telescopic cavity liner contains a system of internal baffles to reduce light and draughts.
  • Internal hit and miss grille manually adjusted with an easy sliding action, giving control over the amount of ventilation let into the room.
  • External water baffles prevent transfer of water across the cavity.
  • Air brick and hit and miss grille UV stabilized to slow down the effects of sunlight.
  • Cowled option available to protect against excessive weather conditions and alleviates air blasts through the cavity.
  • BRE verified equivalent area.


Components:

  • Multifix® Air Brick.
  • AirLiner®.
  • Hit & Miss Grille.
  • Cowl.

General information

Color

Material

Plastic

Guidance for specification option:

  • Cowl: UV stabilised high impact polystyrene.
  • Multifix® Air Brick: U.V. stabilised polypropylene.
  • Telescopic liner: Polypropylene.
  • Hit & Miss Ventilator: U.V. stabilised high impact polystyrene.


Size

220 x 140 mm

Guidance for specification option:

AirLiner® with Multifix® Air Brick: (w x h). Extends from 250–404 mm L.


271 x 171 mm

Guidance for specification option:

Hit & Miss Grille: (l x h).

255 x 154 x 74 mm

Guidance for specification option:

Cowl: (l x h x d).

Uniclass

Pr_30_59_96_92 Ventilation ductsPrimary

CAWS

F30/17 Ventilation ducts in external walling

F30/171 Ventilation ducts in external walling

U90/340 Through wall ventilator ducts

U90/340 Through wall ventilator ducts

Product range

Rytons Ventilation Sets with Hit and Miss Ventilators

Specification data - Ventilation ducts

Material

Plastics.

Guidance for specification option:

  • Cowl: UV stabilised high impact polystyrene.
  • Multifix® Air Brick: U.V. stabilised polypropylene.
  • Telescopic liner: Polypropylene.
  • Hit & Miss Ventilator: U.V. stabilised high impact polystyrene.


Equivalent area

19 800 mm².

Air brick

Blue/ Black.