Air Bricks and Cavity Vents

Air Bricks combined with adjustable cavity vents are designed to provide a practical method of venting ground gases from beneath a building through the perimeter wall construction. The air bricks can be connected to one of the Cordek venting systems, which when used in conjunction with a suitable membrane, provides an efficient and economical gas protection solution.


Air Bricks

  • Air Bricks provide a high level of ventilation for under floor voids
  • Incorporates a front mounted grill, comprising of evenly spaced voids, designed to resist blockage by debris
  • Air bricks are available in a variety of colours to suit selected external masonry

Cavity Vents

  • Compatible cavity vents available with options to adjust to the required height
  • Additional adaptors available to extend height and length of cavity vents


Used as a method of venting ground gases from beneath a building, through the perimeter wall construction and out to the atmosphere.


For use with either Ventform or Cellvent panels as part of a passive gas venting system.


Data Sheets

Product Issue Date Version Size Download
Air Bricks and Adjustable Cavity Vents Data Sheet 07/2016 4 538.8 KB

MSDS Data Sheets

Product Issue Date Version Size Download


Product Issue Date Version Size Download
Construction Solutions 01/2020 2 6.6 MB
VOC & Ground Gas Protection 07/2019 4 4.0 MB

NBS Clauses

Our NBS Clauses are hosted on the external website - view NBS Clauses

BIM Library

Please select the BIM file in the format you require.

Name IFC Size IFC Download Revit Size Revit Download
Air Brick and Adjustable Cavity Vent 19.4 KB 316.0 KB

Not sure which product meets your requirements?

Contact a Technical Advisor now

Find your nearest Technical Advisor

For international enquiries please contact Peter Blanchard

For enquiries in the Manchester or Liverpool
areas please contact James Provan

Or contact Cordek Head Office