Rytons A1® Fire-rated Ducting Kits 204mm x 60mm with Single Air Bricks

General Details
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General Details

Features and Benefits:

A range of tailor-made metal ducting kits compatible with rectangular HVAC supply and extract ducting 204mm x 60mm.
Made from Class A1 fire-rated galvanised steel and compliant with regulations for the requirement of non-combustible ducting in the external walls of high-rise buildings over 18m (11m in Scotland) and those 11m and above undergoing unsafe cladding remediation work.
Straight kit, 90° balcony kit and s-shape window head kit designs provide options to accommodate a variety of ductwork locations.
Three air brick grille styles satisfy the varying design, airflow, and vent placement requirements of buildings. For cladding, flanged options cover cut edges to maintain the external appearance.
Air bricks maintain low resistance and have high airflows.
Custom powder coated air brick. 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 in the air brick provide discreet water outlets, and louvred styles feature angled grilles to promote runoff, reducing the risk of water transfer into the duct.
Air brick/plenum are brick size (rather than duct size) for easy installation using standard mortar joints for a neat appearance in brickwork.
Telescopic fitting air brick allows the overall length of the kit to be extended during installation giving the flexibility to handle minor variations in the external façade.

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Supplied ready to install with no on-site assembly required.
Duct factory fitted to the plenum adaptor.
No screw fixing or sealing required, saving time, labour and ensuring correct alignment and airtight joints throughout.

A1 Fire Classification Explained:

Rytons A1^® Fire-rated 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. 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.

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 a ducting kit 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 Straight Ducting Kits 204mm x 60mm:

Rytons A1^® Fire-rated 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.
Custom overall length (including plastic duct connector – refer to drawing). Note: Rytons recommend adding 100mm to the external wall measurement to ensure the duct and connector finish within the inner leaf.
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 6085463.
Product Code: A1DK204X60RGS.
Download Drawing.

Rytons A1® Fire-rated Ducting Kits 204mm x 60mm with Single Air Bricks

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