Airbricks and External Cowls

An effective, robust and durable airbrick ventilator presenting a equivalent area of 6170mm² (free area of 6500mm²) .

Ideal for underfloor or room ventilation applications when used with the Timloc telescopic underfloor vent or cavity sleeve.

The front grille is designed to provide a free unobstructed airflow and yet prevent the ingress of wind driven rain.

Integral clip togther facility alows multiple airbricks to be stacked to form 9" x 6" and 9" x 9" sizes.

Available in buff, grey, terracotta, white, brown and black.

Brown and Terracotta external airbrick cowls available in 9 x 3", 9 x 6", 9 x 9" and 7 x 7".

Features & Benefits

  • Unique stepped front grille greatly reduces the entry of wind driven rain
  • Available in a range of colours to blend in with various brick types
  • Very tough and robust
  • Durable and totally resistant to decay


  • Used in conjunction with the Timloc Telescopic Underfloor Ventilator for providing ventilation below a suspended ground floor
  • Used in conjunction with Timloc Cavity Sleeves for ventilation through external walls to a building interior

Technical Information

  • Equivalent area 6170mm² per unit (6500mm² free area)
  • 6.5mm wide front grille openings comply with BS 5440 Pt 2 and British Gas requirements
  • Integral clip together facility allows multiple airbricks to be stacked to form 9” x  6” and 9” x  9” sizes
  • 9″ x 6″ cowl (1230) version available to replace double air brick – provides an equivalent area of 11,000mm²
For more information a datasheet is available here     

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Airbricks and External Cowls

  • Brand: Timloc
  • Product Code: Airbricks and External Cowls

Tags: Airbricks, External, Cowls, Timloc