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Cast iron air bricks, which are mortared into walls in the place of a single, double or triple brick.

Features and benefits:

  • Designed to sit flush with the surrounding brickwork.
  • Manufactured in the UK.
  • Will last the lifetime of the building.
  • Can be supplied in bespoke finishes to match existing brickwork.
  • Fire and UV resistant.
  • Fully recyclable.

Applications:

  • Fly screen air brick (FLY): For supplying natural ventilation to interior rooms and sub-floor ventilation to prevent damp and dry rot. It can also be used as an extractor outlet vent grille over ducting.
  • Hit and miss (HM): For use in period properties to replace defective vents, and areas there is an exposed position facing the prevailing wind.
  • Louvre (L): For use in interior rooms, and as an extractor outlet vent grille over core drilled duct holes from room, hob, kitchen and bathroom extractors.
  • Regency scroll (REG) and maximum air flow brick (MAX): Can be used to provide air under suspended floors and for room ventilation to reduce condensation or provide combustion air for solid fuel appliances.
  • Slotted (VV): For use to provide air for combustion with open fire places.
  • Square hole brick (GRID): Suitable for installation to conservation areas.
  • Victorian 'Y' pattern (Y): Early to late Victorian properties.
  • Windsor (WIN): Modern extensions and narrow courses of brickwork.

Standard product features

Material:

Cast iron which has been cast in sand moulds.

Options

Size:

Sizes are approximate.

Type:

- 9 x 3" (225 x 75 mm):

  • FLY3: Exterior fly screen air brick. Supplied with a copper mesh of 1 mm gauge, 1 x 1 mm square holes for preventing the ingress of flies, wasps and rodents. Vent size: 16 x 16 mm. Weight: 1.5 kg. Air flow: 5200 mm² (with mesh). Plate thickness: 8 mm. Reverse depth: 50 mm.
  • GRID3: Square hole air brick. Vent size: 10 x 10 mm. Weight: 0.5 kg. Air flow: 5000 mm². Plate thickness: 4 mm. Reverse depth: 25 mm.
  • HM3: Adjustable hit and miss air brick. Vent size: 8 x 55 mm. Weight: 0.8 kg. Air flow: 4500 mm². Plate thickness: 4 mm. Reverse depth: 30 mm.
  • L3: Louvre air brick. Vent size: 7 mm. Weight: 0.65 kg. Air flow: 2500 mm². Reverse depth: 37 mm. Useful for preventing back draughts.
  • MAX3: Maximum flow air brick with large openings. Robust and heavy duty. Vent size: 17 x 17 mm. Weight: 1 kg. Air flow: 7800 mm². Plate thickness: 8 mm. Reverse depth: 30 mm.
  • REG3: Regency scroll air brick with concentric circles. Weight: 0.8 kg. Air flow: 4500 mm². Plate thickness: 5 mm. Reverse depth: 50 mm.
  • VV3: Slotted air brick. Vent size: 8 x 55 mm. Weight: 0.8 kg. Air flow: 4500 mm². Plate thickness: 4 mm. Reverse depth: 25 mm.
  • WIN3: Windsor air brick. Metric Air Brick .Slightly smaller than the imperial size. Can be used with cavity wall sleeves or Periscope Ducting. Vent size: 10 x 40 mm. Weight: 1.0 kg. Air flow: 4500 mm². Plate thickness: 6 mm. Reverse depth: 50 mm.
  • Y3: Victorian 'Y Pattern' air brick. Weight: 0.5 kg. Air flow: 4500 mm². Plate thickness: 4 mm. Reverse depth: 30 mm.

- 9 x 6" (225 x 150 mm):

  • FLY6: Exterior fly screen air brick. Supplied with a copper mesh of 1 mm gauge, 1 x 1 mm square holes for preventing the ingress of flies, wasps and rodents. Vent size: 16 x 16 mm. Weight: 2.4 kg. Air flow: 8500 mm² (with mesh). Plate thickness: 7 mm. Reverse depth: 50 mm.
  • GRID6: Square hole air brick. Vent size: 9 x 9 mm. Weight: 1 kg. Air flow: 8500 mm². Plate thickness: 4 mm. Reverse depth: 25 mm.
  • HM6: Adjustable hit and miss air brick. Vent size: 8 x 125 mm. Weight: 1.6 kg. Air flow: 10 500 mm². Plate thickness: 4 mm. Reverse depth: 35 mm.
  • L6: Louvre air brick. Useful for preventing back draughts. Vent size: 8 mm. Weight: 1.2 kg. Air flow: 8500 mm². Reverse depth: 42 mm.
  • MAX6: Maximum flow air brick with large openings. Robust and heavy duty. Can be used to provide air for combustion with open fire places. Vent size: 14 x 14 mm. Weight: 1.2 kg. Air flow: 18 000 mm². Plate thickness: 6 mm. Reverse depth: 30 mm.
  • VV6: Slotted air brick. Vent size: 8 x 120 mm. Weight: 1 kg. Air flow: 10 000 mm². Plate thickness: 4 mm. Reverse depth: 25 mm.
  • WIN6: Windsor air brick. Can be used with cavity wall sleeves. Metric Air Brick comprising a pair of interlocking. WIN3 Vent size: 10 x 40 x 2 mm. Weight: 2.0 kg. Air flow: 9000 mm². Plate thickness: 6 mm. Reverse depth: 50 mm.
  • Y3: Victorian 'Y Pattern' air brick. Weight: 1 kg. Air flow: 11 000 mm². Plate thickness: 4 mm. Reverse depth: 30 mm.

- 9 x 9" (225 x 225 mm):

  • FLY9: Exterior fly screen air brick. Supplied with a copper mesh of 1 mm gauge, 1 x 1 mm square holes for preventing the ingress of flies, wasps and rodents. Vent size: 16 mm. Weight: 2.8 kg. Air flow: 13 000 mm² (with mesh). Plate thickness: 7 mm. Reverse depth: 45 mm.
  • GRID9: Square hole air brick. Suitable for installation to conservation areas. Vent size: 10 mm. Weight: 1.6 kg. Air flow: 17 000 mm². Plate thickness: 4 mm. Reverse depth: 50 mm.
  • HM9: Adjustable hit and miss air brick. Vent size: 10 x 95 mm. Weight: 2.2 kg. Air flow: 17 000 mm². Plate thickness: 5 mm. Reverse depth: 30 mm.
  • L9: Louvre air brick. Useful for preventing back draughts. Vent size: 9 mm. Weight: 1.8 kg. Air flow: 17 000 mm². Reverse depth: 42 mm.
  • MAX9: Maximum flow air brick with large openings. Robust and heavy duty. Most suitable for use in commercial and industrial settings with large volume air requirements whilst maintaining a period look. Can also be used to provide air for combustion with open fire places. Vent size: 14 mm. Weight: 3.5 kg. Air flow: 28 000 mm². Plate thickness: 5 mm. Reverse depth: 50 mm.
  • VV9: Slotted air brick (can be fitted either horizontal or vertical). Vent size: 10 mm. Weight: 1.8 kg. Air flow: 17 000 mm². Plate thickness: 6 mm. Reverse depth: 30 mm.
  • WIN9: Windsor air brick. Metric air brick. Comprises of three interlocking WIN3 air bricks. Can be used with cavity wall sleeves. Suitable for narrow courses of brickwork. Vent size: 10 mm. Weight: 3.0 kg. Air flow: 13 500 mm². Plate thickness: 6 mm. Reverse depth: 50 mm.

- 12 x 6" (305 x 150 mm):

  • REG12: Regency scroll air brick with concentric circles. Vent size: 10 mm. Weight: 3.5 kg. Air flow: 14 000 mm². Plate thickness: 8 mm. Reverse depth: 75 mm.

Consult manufacturer's literature for further details on each variant.

Finish:

Certain finishes are only available with certain variants; consult manufacturer for details.

- Painted (black):

Uses a three-part epoxy primer, followed by two-part epoxy black gloss top coat which is extremely hard wearing.

- Standard (bare):

Will rust to leave a natural brown coating of iron oxide, which will protect the grille from further corrosion.

NBS Specification

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This product is associated with the following NBS Create clause:
45-80-50/370 Airbricks

NBS Specification

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This product is associated with the following NBS clauses:

Product specification

An important note about specifying

Manufacturer

Name:

Cast Iron Air Brick Company

Tel:

+44 (0)1598 711999

Product reference

Cast Iron Air Bricks (Imperial)

Size

[9 x 3" (225 x 75 mm)]
-
To replace a single brick.
[9 x 6" (225 x 150 mm)]
-
To replace a double brick.
[9 x 9" (225 x 225 mm)]
-
To replace a triple brick.
[12 x 6" (305 x 150 mm)]

Type

[ ______ ]

Finish

[Painted (black)]
[RAL]
-
Insert RAL code.
[Standard (bare)]

Accessories/ Other requirements

[Not required]
[Cavity horizontal extension (CAVHEXT3/ CAVHEXT6/ CAVHEXT9)]
-
For all 9 x 3", 9 x 6" and 9 x 9" air bricks. Transfers air through the wall to an internal grille.
[Daisy Grille, 10 x 4" (DAY104/ DAY107)]
-
For VV3, FLY3, FLY6, Reg3, Y3, Y6, MAX3 and MAX6 only. For use in conjunction with the CAVHEXT3/ CAVHEXT6/ CAVHEXT9.
[Duct tape black]
-
Fabric high strength adhesive tape to secure imperial cast iron air bricks to metric cavity horizontal extensions and periscope duct.
[Flood screen]
-
For FLY3 and FLY6 only. Cork gasket that can be used to replace the mesh when flooding is imminent and likely to occur. Removable.
[Heritage grille (HER96/ HER126)]
-
For FLY6, FLY9, VV6, MAX6, Y6 and REG12 only.
[METIMP]
-
Metric to imperial aluminium adapter to connect various single sized 9 x 3" air bricks to cavity horizontal extension duct and periscope duct.
[Periscope vent (PER3)]
-
For WIN3 and all 9 x 3" airbricks with or without METIMP adaptor

Manufacturer details

Down Farm,
Brayford,
Barnstaple,
Devon, EX32 7QQ
Tel +44 (0)1598 711999
Fax +44 (0)1598 711999
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