Cast Iron Air Bricks (Imperial)

Application

  • 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.

Description

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.

General information

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)

Finish

Painted (black)

RAL

Insert RAL code.

Standard (bare)

Material

Cast iron which has been cast in sand moulds

Uniclass 2015

Pr_35_90_50_03 AirbricksPrimary

CAWS

F30/15 Air bricks in external walling

F30/160 Air bricks in external walling

Specification data - Airbricks

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

See 'Options' and insert requirements.

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

Standard product features

Material:

Cast iron which has been cast in sand moulds.

Product 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.

Literature

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