|Item||Nom. Size (Inch)||Size (mm)||Vent Size (mm)||Weight (kg)||Air Flow (mm2)||Plate Thickness (mm)||Reverse Depth (mm)|
|Fly 3||9 x 3||228 x 78||16 x 16||1.5||5200 (with mesh)||8||50|
British Products Made in British Foundries
Fly3 Air Brick
9 x 3 Fly Screen Air Brick with choice of finishes, bare as standard or painted black (+£10), with the option of adding a Flood Screen (+£10).
Mainly used as an exterior air brick, supplied to the London Olympics 2012 for use in the athletes village it can also be used with cavity wall sleeve item CAVHEXT3 and the daisy interior grille (item DAY104).
The mesh is a copper mesh of 1mm gauge with 1mm x 1mm square holes ideal for preventing ingress of flies, wasps and rodents.
The flood screen is a cork gasket that can be used to replace the mesh when flooding is imminent and likely to occur , it is then removed when danger has passed. It is useful to keep on standby for ground floor installations especially in low lying areas, properties near the coast or rivers or properties in an area with a history of flooding.
Product specifications can be found in the table below.
Fly Screen Air Bricks
The Fly Screen air bricks are supplied with a fitted copper mesh which is especially useful to prevent ingress of foreign objects into ducting and ventilation systems, ie. insects, cigarettes, matches, gum and litter etc.
They have been installed in a number of medical establishments and dentists especially in listed buildings and are very effective at preventing the ingress of summer flies and midges. At low levels they are especially useful in preventing rodents gaining access into properties. The removable mesh can be cleaned and replaced as part of a planned maintenance system cutting down accumulation of dirt within ventilation ducting when fitted on air inlets and so reducing the risk of fires.
- Channel Gratings (3)
- Westminster Vents (1)
- Cast Iron Air Bricks (26)
- Flyscreen Air Bricks (3)
- Hit & Miss Air Bricks (3)
- Louvre Air Bricks (3)
- Metric Air Bricks (4)
- Ducting & Wall Sleeves (14)
- Vent & Drainage Grilles (10)
- Round Slotted Grilles (2)
- Made to Measure Square Hole Grilles (1)
- Heritage Grilles (1)
- Long Gratings (7)
- Cast Iron Bearers (1)
- Doorstep Grilles (5)
- Cellar Vents (5)
- Period Vent Grilles (7)
- Coal Hole Covers (3)