Rytons A1® Fire-rated 9×6 AirLiner®

General Details

Rytons A1® Fire-rated 9×6 AirLiner®

Rytons A1® Fire-rated 9×6 AirLiner®
Custom-made galvanised steel 9×6 AirLiner® cross-cavity sleeve.
Custom AirLiner® length (note: air bricks project 10mm).
Properties: A1 fire-rated 0.9mm galvanised steel. Spot welded. Ever Build intumescent fire protection and acoustic sealant (FIREMATE) used on all gaps.
Registered Designs.
Product Code: A1AL96.

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Rytons A1® Fire-rated Double Air Bricks
Return Grille Double Air Brick (A1RGD), Return Grille Double Air Brick Flanged (A1RGDF) – 17,280mm² free area.
Square Holed Double Air Brick (A1SQD), Square Holed Double Air Brick Flanged (A1SQDF) – 18,064mm² free area.
FlowRyt® Double Air Brick (A1FRD), FlowRyt® Double Air Brick Flanged (A1FRDF) – 18,000mm² free area.
Custom RAL colour grilles in matt, semi-gloss or gloss finish (achieving A2-s1, d0).
Properties: A1 fire-rated 0.9mm galvanised steel. Fire-rated RAL colour powder coating (achieving A2-s1, d0).
Registered Designs.

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No on-site assembly.
Ducting sleeve supplied with factory fixed joints and seals.

  • Suitable for use in high-rise buildings with a storey 18m or more above ground level to Regulation 7(2) and Building Regulations Approved Document B.
  • Suitable for use in buildings with a storey 11m or more above ground level to Building (Scotland) technical handbook 2019: domestic and non-domestic, 2.7.
  • Product considered fire class A1 without testing, as per European Commission paper 96/603/EC referred to in BS EN 13501-1:2018.
  • Material not compromised at a temperature of 800°C, as required by the Building Regulations Approved Document B for ductwork spanning the cavity.
  • Classification: A1.  Definition: Non-combustible.  Description: No contribution to fire.
  • Choose from three styles of air brick to achieve the design, air flow and positioning requirements of the development.
  • Air brick supplied in an extensive choice of RAL colours (achieving A2-s1, d0), to complement the façade and maintain the external appearance of the building.
  • Air brick features discreet precautionary drainage holes, providing an outlet for any water ingress to prevent transfer into the ducting.
  • Also available, Rytons A1® Fire-rated 9×3 and 9×9 AirLiner® metal cavity liners.
  • Bespoke AirLiner® design service available with in-house testing facilities for pressure loss data and equivalent area testing to BS EN 13141-1.

Regulations/Reference Material:

  • The Building Regulations Approved Document B (Fire safety) – Volume 1: Dwellings (2019 edition). Appendix B: Performance of materials, products and structures B4. NOTE: Regulation 7(2) limits components used in or on the external walls of certain buildings to materials achieving class A2-s1, d0 or class A1 (see Section 10). Assessments cannot be used to demonstrate compliance with this requirement.
  • The Building Regulations Approved Document B (Fire safety) – Volume 2: Buildings other than dwellings (2019 edition). Appendix B: Performance of materials, products and structures B4. NOTE: Regulation 7(2) limits components used in or on the external walls of certain buildings to materials achieving class A2-s1, d0 or class A1 (see Section 10). Assessments cannot be used to demonstrate compliance with this requirement.
  • Building (Scotland) technical handbook 2019: domestic. 2.7 Spread on external walls. 2.7.1 External wall cladding. Storey height more than 11m – Where the building has a storey at a height of more than 11m above the ground the external wall cladding system should be constructed of products achieving European Classification A1 or A2.

  • Building (Scotland) technical handbook 2019: non-domestic. 2.7 Spread on external walls. 2.7.2 Specified attachments. There is a risk of vertical fire spread from specified attachments to an external wall including balconies, solar panels and solar shading. Solar shading are devices attached to an external wall to reduce heat gain within a building by deflecting sunlight. Fire-fighters may not be able to apply a water jet from a fire-fighting hose directly onto a fire that has spread onto specified attachments high above the ground.
  • Where the building has a storey at a height of more than 11m above the ground, specified attachments should be constructed of products achieving European Classification A1 or A2.
  • Extracts from NHBC Technical Extra 25.
  • Page 14: Note: in most cases, a panel of the tested system wouldn’t contain all the components necessary to function as an external wall (for example, cavity trays, weep holes, etc.). Therefore, any additional components must achieve Class A1or A2-s1, d0.
  • Page 16: Minor components within or passing through an external wall: The aim of the regulation is to remove all combustible components from, or within, an external wall.  The majority of air bricks, weep holes, ventilation ducts, etc. can be produced from materials meeting Class A1 or A2-s1, d0, so products meeting these classifications should be used.
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Rytons is proud to be a family run business and British manufacturer since 1972.

Pressure Loss Data