L9 Air Brick

9 x 9 Louvre Air Brick painted black or bare metal. Viewed head on, from the front, the slots are barely visible making it ideal to reduce back draught from prevailing winds and therefore is ideal in exposed positions.

Choose a bare metal finish to allow to rust for “industrial look” or installation in red brick properties where the rust won’t stain the render or bricks, for light bricks and coloured render choose painted black finish. Customers can also prime and paint bare metal air bricks to their own colours with oil or epoxy paints.

For larger orders we can supply air bricks in any RAL colour, professionally primed with 3 part epoxy 2 part gloss or matt top coat at an additional cost of £200+vat – please email item number, quantity and RAL number for a proforma cost for this.

This imperial air brick can be used with  duct tape to use with the metric plastic Rytons cavity wall sleeve CAVHEXT9.

It isn’t possible to install flymesh at the back of this air brick as the mesh will either become dislodged or will block without the ability to clean it. If flies, wasps and bugs are gaining entrance to the property via the vents and are a nuisance the FLY9 cast iron air brick with removable front and integral mesh may be a more suitable alternative or consideration should be given to combining the L9 with an internal 9×9 cast iron flat grille with mesh such as the HER9. Please note mesh cannot legally be used (UK – current GAS Safe and HETAS regulations apply)  vents where the vents are required to feed a combustion appliance or the room where there is a combustion appliance.

This air brick is supplied to numerous customers for use in a wide variety of situations including HVAC terminal vent grilles, background vent for rooms, under floor ventilation and public building ventilation. It is often supplied to farm buildings and exposed rural positions as well as properties in the Highlands of Scotland and Ireland. Most noteworthy it has been supplied to Kings Library in London and is used by Wolseley UK in a number of installations throughout England and wales

Painted vents use two part epoxy black gloss top coat which is hard wearing but is just a decorative finish, like all painted cast iron products it will require repainting from time to time, especially if situated on an exposed wall. Repainting can be frequent if the grille is positioned in the sunlight, or chipped or exposed to salt air . The gloss paint will dull over time, in exposed conditions it is likely to dull to a satin sheen fairly quickly. Regardless of the paint finish the cast iron grille will last for many decades with or without painting.