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Description

Plastic, telescopic cavity liner set with external cowl, for background room ventilation. Compliant with BS 5250.

Features:

  • External cowl protects against excessive weather conditions and alleviates air blasts through the cavity.
  • Telescopic cavity liner contains a system of internal baffles to reduce light and draughts.
  • Internal hit & miss grille manually adjusted with a sliding action allowing ventilation to be controlled as required.
  • External water baffles prevent transfer of water across the cavity.
  • Cowl, air brick and hit & miss grille UV stabilized to slow down the effects of sunlight.
  • BRE verified equivalent area.

Components:

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

General information
Features

External cowl protects against excessive weather conditions and alleviates air blasts through the cavity

Telescopic cavity liner contains a system of internal baffles to reduce light and draughts

Internal hit & miss grille manually adjusted with a sliding action allowing ventilation to be controlled as required

External water baffles prevent transfer of water across the cavity

Cowl, air brick and hit & miss grille UV stabilized to slow down the effects of sunlight

BRE verified equivalent area

Material

UV stabilized polypropylene

Size

Cowl: 274 x 235 x 103 mm (l x h x d)

AirLiner® with Multifix® Air Brick: 220 x 207 x 250–404 mm (w x h x l)

Hit & Miss Grille: 271 x 247 mm (l x h)

Uniclass 2015
Pr_30_59_96_92 Ventilation ductsPrimary
Specification data - Ventilation ducts
Product Reference

TC20HBCWL

Buff/ Sand Cowl/ Multifix® Air Brick.

TC20HTCWL

Terracotta Cowl/ Multifix® Air Brick.

TC20HWCWL

White Cowl/ Multifix® Air Brick.

Colour -
Air brick

Buff/ Sand

TC20HBCWL

Terracotta

TC20HTCWL

White

TC20HWCWL

Equivalent area

27 000 mm² (270 cm²)

Standard product features

Colour:

  • AirLiner®: Black.
  • Hit & Miss Grille: White.

Material:

UV stabilized polypropylene.

Size:

  • Cowl: 274 x 235 x 103 mm (l x h x d).
  • AirLiner® with Multifix® Air Brick: 220 x 207 x 250–404 mm (w x h x l).
  • Hit & Miss Grille: 271 x 247 mm (l x h).

Literature
Third party certifications
  • Verified
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