Rytons A1® Fire-rated Metal Double Air Bricks

General Details

Features and Benefits:

  • A range of tailor-made metal double air bricks.
  • Made from Class A1 fire-rated galvanised steel and compliant with regulations for the requirement of non-combustible materials in the external walls of high-rise buildings over 18m (11m in Scotland) and those 11m and above undergoing unsafe cladding remediation work.
  • Three grille styles available to satisfy the varying design, airflow, and vent placement requirements of buildings.  For cladding, flanged options cover cut edges to maintain the external appearance.
  • Provide high air flows whilst maintaining low resistance.
  • Custom powder coating as standard.  Choose from the RAL Classic colour chart in matt, semi-gloss or gloss finish (achieving Class A2-s1, d0) for an air brick that matches cladding or brickwork.  Signature architectural coatings are also available.
  • Built-in weather protection.  Drainage holes provide discreet water outlets, and louvred styles feature angled grilles to promote runoff, reducing the risk of water transfer into the cavity or ducting.
  • Brick size (rather than duct size) for easy installation using standard mortar joints for a neat appearance in brickwork.

A1 Fire Classification Explained:

  • Rytons A1® Fire-rated Metal Double Air Bricks are made from galvanised steel.  Galvanised steel is considered fire class A1 without testing, as per European Commission paper 96/603/EC referred to in BS EN 13501-1:2018.  The material is 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.

Disclaimers:

  • The installation of metal air bricks alone will not satisfy the requirements of high-rise buildings which require all materials forming part of the external wall, or a specified attachment, to be made from non-combustible materials.  For compliant ducting kits, see Rytons A1 Fire-rated Range.
  • We do not recommend the purchase of a metal air brick separate to the plenum/ducting.  As components are made by hand and have a size tolerance of +/- 5%, we can only guarantee compatibility between the air brick and plenum/ducting if fabricated and supplied as a kit.

Associated Ducting Kits:

Reference Material:

  • Building Regulation 7(2) – Ban of combustible materials in the external wall of buildings.
  • Building Regulation Approved Document B (fire safety).
  • Building standards Scotland technical handbook – domestic (2.7).

Specifications:

  • If you can’t see an air brick to meet your requirements, we offer a bespoke service to design, fabricate and supply the perfect solution.  To discuss your requirements, call our technical sales office on 01536 511874 or email admin@rytons.com.

Rytons A1® Fire-rated Return Grille Double Air Brick
215mm L x 135mm H x 50mm D (nominal size).
Custom RAL colour in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
18,720mm² free area per unit.
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating.
Registered Design 6078059.
Product Code: A1RGD.
Download Drawing.

Rytons A1® Fire-rated Return Grille Double Air Brick Flanged
215mm L x 135mm H x 50mm D (nominal size) plus 15mm flange with corner screw holes.
Custom RAL colour in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
18,720mm² free area per unit.
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating.
Registered Design 6078060.
Product Code: A1RGDF.
Download Drawing.

Rytons A1® Fire-rated Square Holed Double Air Brick
215mm L x 135mm H x 50mm D (nominal size).
Custom RAL colour in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
18,064mm² free area per unit.
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating.
Product Code: A1SQD.
Download Drawing.

Rytons A1® Fire-rated Square Holed Double Air Brick Flanged
215mm L x 135mm H x 50mm D (nominal size) plus 15mm flange with corner screw holes.
Custom RAL colour in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
18,064mm² free area per unit.
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating.
Product Code: A1SQDF.
Download Drawing.

Rytons A1® Fire-rated FlowRyt® Double Air Brick
215mm L x 135mm H x 50mm D (nominal size).
Custom RAL colour in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
18,000mm² free area per unit.
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating.
Registered Design 6109959.
Product Code: A1FRD.
Download Drawing.

Rytons A1® Fire-rated FlowRyt® Double Air Brick Flanged
215mm L x 135mm H x 50mm D (nominal size) plus 15mm flange with corner screw holes.
Custom RAL colour in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
18,000mm² free area per unit.
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating.
Registered Design 6109958.
Product Code: A1FRDF.
Download Drawing.

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Rytons is proud to be a family run business and British manufacturer since 1972

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