Features and Benefits:
Rytons A1® Fire-rated Retrofit Ducting Kits 204mm x 60mm with Single Air Bricks
General Details
- Custom-made metal refurbishment ducting kits compatible with 204mm x 60mm rectangular HVAC supply and extract ducting.
- Straight kits and 90° balcony kits suit a variety of locations.
- Installed externally with no access to apartments needed.
- Oversized metal ducting encases 204mm x 60mm in-situ plastic ductwork and terminates with a 50mm wide flange, allowing for secure fixing to the cavity board.
- Made from A1 classified galvanised steel for fire safety, strength and durability.
- Non-combustible, suitable for multi-storey and higher-risk buildings.
- Choice of air brick styles to suit different airflow and design needs, with flanged options for cladding applications to conceal cut edges for a neat finish.
- Air bricks maintain low resistance and high airflows.
- Air bricks supplied custom powder coated to Class A2-s1, d0, with options from the RAL Classic colour chart in matt, semi-gloss or gloss finishes. Signature architectural finishes available on request.
- Integrated weather protection includes discreet drainage holes and angled louvres to promote water runoff and reduce the risk of transfer into the duct.
- Air bricks and plenums are brick-sized (not duct-sized) for simple installation using standard mortar joints, ensuring an aligned appearance in brickwork.
- Suitable for:
- The external walls of relevant buildings 11m+ in height or more than 5 storeys, undergoing unsafe cladding remediation work (Building Safety Act 2022).
- The external walls of high-rise relevant buildings over 18m high (11m high in Scotland).
- The external walls of higher-risk buildings at least 18m high or with at least 7 storeys (Building Safety Act 2022).
- The external surfaces of residential purpose group buildings more than 11m high.
- The external surfaces of residential purpose group buildings 11m high or less where an external wall is within 1m of the relevant boundary.
- Bespoke design service available. For further information contact our Technical Sales Office on 01536 511874 or email admin@rytons.com.
- Telescopic fitting air brick allows the overall length of the ducting kit to be extended during installation, providing flexibility to accommodate minor variations in the external façade.
- Supplied ready to install with no on-site assembly required.
- Duct factory fitted to the plenum adaptor.
- No screw fixing or sealing needed, saving time and labour and ensuring correct alignment and airtight joints.
A1 Fire Classification Explained:
- Rytons A1® Fire-rated Retrofit Ducting Kits 204mm x 60mm with Single 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.
- Classification: A1. Definition: Non-combustible. Description: No contribution to fire.
Reference Material:
- England & Wales: view extracts >>
- Approved Document B: Fire safety (Volume 1) (2019 edition incorporating 2020 and 2022 amendments) for England.
- Approved Document B: Fire safety (Volume 2) (2006 edition incorporating 2010, 2013, 2016, 2017 and 2020 amendments) for Wales.
- The Building Safety Act.
- Scotland: view extracts >>
- Building Standards Scotland Domestic Technical Handbook.
Rytons A1® Fire-rated Retrofit Straight Ducting Kits 204mm x 60mm:
Rytons A1® Fire-rated Retrofit Ducting Kit 204mm x 60mm with Return Grille Single Air Brick
Return Grille Single Air Brick: 7,200mm² free area.
Custom RAL colour air brick in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
209mm x 65mm sleeve to encase in situ ducting 204mm x 60mm.
50mm flange (with eight screw holes) at the end of the duct for fixing.
Custom overall length (refer to drawing).
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating. Spot welded. Everbuild Fire Mate intumescent and acoustic sealant used on all gaps.
Registered Design 6085465.
Patent Approved.
Product Code: A1RFDK204X60RGS.
Download Drawing. | Download Golden Thread.
Rytons A1® Fire-rated Retrofit Ducting Kit 204mm x 60mm with Return Grille Single Air Brick Flanged
Return Grille Single Air Brick Flanged (15mm flange with corner screw holes): 7,200mm² free area.
Custom RAL colour air brick in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
209mm x 65mm sleeve to encase in situ ducting 204mm x 60mm.
50mm flange (with eight screw holes) at the end of the duct for fixing.
Custom overall length (refer to drawing).
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating. Spot welded. Everbuild Fire Mate intumescent and acoustic sealant used on all gaps.
Registered Design 6085466.
Patent Approved.
Product Code: A1RFDK204X60RGSF.
Download Drawing. | Download Golden Thread.
Rytons A1® Fire-rated Retrofit Ducting Kit 204mm x 60mm with Square Holed Single Air Brick
Square Holed Single Air Brick: 9,032mm² free area.
Custom RAL colour air brick in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
209mm x 65mm sleeve to encase in situ ducting 204mm x 60mm.
50mm flange (with eight screw holes) at the end of the duct for fixing.
Custom overall length (refer to drawing).
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating. Spot welded. Everbuild Fire Mate intumescent and acoustic sealant used on all gaps.
Registered Design 6085465.
Patent Approved.
Product Code: A1RFDK204X60SQS.
Download Drawing. | Download Golden Thread.
Rytons A1® Fire-rated Retrofit Ducting Kit 204mm x 60mm with Square Holed Single Air Brick Flanged
Square Holed Single Air Brick Flanged (15mm flange with corner screw holes): 9,032mm² free area.
Custom RAL colour air brick in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
209mm x 65mm sleeve to encase in situ ducting 204mm x 60mm.
50mm flange (with eight screw holes) at the end of the duct for fixing.
Custom overall length (refer to drawing).
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating. Spot welded. Everbuild Fire Mate intumescent and acoustic sealant used on all gaps.
Registered Design 6085466.
Patent Approved.
Product Code: A1RFDK204X60SQSF.
Download Drawing. | Download Golden Thread.
Rytons A1® Fire-rated Retrofit Ducting Kit 204mm x 60mm with FlowRyt® Single Air Brick
FlowRyt® Single Air Brick: 8,000mm² free area.
Custom RAL colour air brick in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
209mm x 65mm sleeve to encase in situ ducting 204mm x 60mm.
50mm flange (with eight screw holes) at the end of the duct for fixing.
Custom overall length (refer to drawing).
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating. Spot welded. Everbuild Fire Mate intumescent and acoustic sealant used on all gaps.
Registered Design 6085465.
Patent Approved.
Product Code: A1RFDK204X60FRS.
Download Drawing. | Download Golden Thread.
Rytons A1® Fire-rated Retrofit Ducting Kit 204mm x 60mm with FlowRyt® Single Air Brick Flanged
FlowRyt® Single Air Brick Flanged (15mm flange with corner screw holes): 8,000mm² free area.
Custom RAL colour air brick in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
209mm x 65mm sleeve to encase in situ ducting 204mm x 60mm.
50mm flange (with eight screw holes) at the end of the duct for fixing.
Custom overall length (refer to drawing).
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating. Spot welded. Everbuild Fire Mate intumescent and acoustic sealant used on all gaps.
Registered Design 6085466.
Patent Approved.
Product Code: A1RFDK204X60FRSF.
Download Drawing. | Download Golden Thread.
NBS Source Specifications:
Rytons A1® Fire-rated Retrofit 90° Balcony Ducting Kits 204mm x 60mm:
Rytons A1® Fire-rated Retrofit 90° Ducting Kit 204mm x 60mm with Return Grille Single Air Brick Flanged
Return Grille Single Air Brick Flanged (15mm flange with corner screw holes): 7,200mm² free area.
Custom RAL colour air brick in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
209mm x 65mm sleeve to encase in situ ducting 204mm x 60mm.
50mm flange (with eight screw holes) at the end of the duct for fixing.
Custom drop from underside of duct to face of air brick (refer to drawing).
Custom overall length (refer to drawing).
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating. Spot welded. Everbuild Fire Mate intumescent and acoustic sealant used on all gaps.
Registered Design 6085469.
Patent Approved.
Product Code: A1RF90DK204X60RGSF.
Download Drawing. | Download Golden Thread.
Rytons A1® Fire-rated Retrofit 90° Ducting Kit 204mm x 60mm with Square Holed Single Air Brick Flanged
Square Holed Single Air Brick Flanged (15mm flange with corner screw holes): 9,032mm² free area.
Custom RAL colour air brick in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
209mm x 65mm sleeve to encase in situ ducting 204mm x 60mm.
50mm flange (with eight screw holes) at the end of the duct for fixing.
Custom drop from underside of duct to face of air brick (refer to drawing).
Custom overall length (refer to drawing).
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating. Spot welded. Everbuild Fire Mate intumescent and acoustic sealant used on all gaps.
Registered Design 6085469.
Patent Approved.
Product Code: A1RF90DK204X60SQSF.
Download Drawing. | Download Golden Thread.
Rytons A1® Fire-rated Retrofit 90° Ducting Kit 204mm x 60mm with FlowRyt® Single Air Brick Flanged
FlowRyt® Single Air Brick Flanged (15mm flange with corner screw holes): 8,000mm² free area.
Custom RAL colour air brick in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
209mm x 65mm sleeve to encase in situ ducting 204mm x 60mm.
50mm flange (with eight screw holes) at the end of the duct for fixing.
Custom drop from underside of duct to face of air brick (refer to drawing).
Custom overall length (refer to drawing).
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating. Spot welded. Everbuild Fire Mate intumescent and acoustic sealant used on all gaps.
Registered Design 6085469.
Patent Approved.
Product Code: A1RF90DK204X60FRSF.
Download Drawing. | Download Golden Thread.
NBS Source Specifications:
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Pressure Loss Data
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