Features and Benefits:
Rytons A1® Fire-rated Compartment Ducts
General Details
- A range of custom-made round and rectangular metal compartment ducts.
- Compatible with HVAC supply and extract ducting 110x54mm, 204x60mm, 220x90mm, 100mm dia., 125mm dia. and 150mm dia.
- Manufactured from A1 classified galvanised steel.
- Compliant with regulations for the requirement of fire resisting ducts passing through fire-separating elements.
- All ducts are available with or without connectors for the attachment of plastic ductwork.
- Suitable for:
- High-rise relevant buildings over 18m high (11m high in Scotland).
- Relevant buildings 11m+ in height or more than 5 storeys, undergoing unsafe cladding remediation work (Building Safety Act 2022).
- Higher-risk buildings at least 18m high or with at least 7 storeys (Building Safety Act 2022).
- No on-site assembly required.
- Duct supplied with factory fixed joints and seals.
A1 Fire Classification Explained:
- Rytons A1® Fire-rated Compartment Ducts 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 Compartment Ducts:
Rytons A1® Fire-rated Compartment Duct 110mm x 54mm
Available with or without Rytons RD4C connectors for plastic ductwork attachment.
Custom overall length without connectors (refer to drawing).
Custom overall length with a connector at one end (refer to drawing). Note: Rytons recommend adding 100mm to the compartment measurement to ensure the connector finishes outside the void.
Custom overall length with a connector at each end (refer to drawing). Note: Rytons recommend adding 200mm to the compartment measurement to ensure the connectors finish outside the void.
Properties: Class A1 fire-rated 0.9mm galvanised steel. Spot welded. Everbuild Fire Mate intumescent and acoustic sealant used on all gaps.
Product Code: A1CD110X54.
Download Drawing. | Download Golden Thread.
Rytons A1® Fire-rated Compartment Duct 204mm x 60mm
Available with or without Rytons RD5C connectors for plastic ductwork.
Custom overall length without connectors (refer to drawing).
Custom overall length with a connector at one end (refer to drawing). Note Rytons recommend adding 100mm to the compartment measurement to ensure the connector finishes outside the void.
Custom overall length with a connector at each end (refer to drawing). Note: Rytons recommend adding 200mm to the compartment measurement to ensure the connectors finish outside the void.
Properties: Class A1 fire-rated 0.9mm galvanised steel. Spot welded. Everbuild Fire Mate intumescent and acoustic sealant used on all gaps.
Product Code: A1CD204X60.
Download Drawing. | Download Golden Thread.
Rytons A1® Fire-rated Compartment Duct 220mm x 90mm
Available with or without Rytons RD6C connectors for plastic ductwork.
Custom overall length without connectors (refer to drawing).
Custom overall length with a connector at one end (refer to drawing). Note: Rytons recommend adding 100mm to the compartment measurement to ensure the connector finishes outside the void.
Custom overall length with a connector at each end (refer to drawing). Note: Rytons recommend adding 200mm to the compartment measurement to ensure the connectors finish outside the void.
Properties: Class A1 fire-rated 0.9mm galvanised steel. Spot welded. Everbuild Fire Mate intumescent and acoustic sealant used on all gaps.
Product Code: A1CD220X90.
Download Drawing. | Download Golden Thread.
Rytons A1® Fire-rated Compartment Duct 100mm Dia.
Available with or without Rytons RD4CONN connectors for plastic ductwork attachment.
Custom overall length without connectors.
Custom overall length with a connector at one end. Note: Rytons recommend adding 100mm to the compartment measurement to ensure the connector finishes outside the void.
Custom overall length with a connector at each end. Note: Rytons recommend adding 200mm to the compartment measurement to ensure the connectors finish outside the void.
Properties: Class A1 fire-rated 0.5mm galvanised steel.
Product Code: A1CD100.
Download Drawing. | Download Golden Thread.
Rytons A1® Fire-rated Compartment Duct 125mm Dia.
Available with or without Rytons RD5CONN connectors for plastic ductwork attachment.
Custom overall length without connectors.
Custom overall length with a connector at one end. Note: Rytons recommend adding 100mm to the compartment measurement to ensure the connector finishes outside the void.
Custom overall length with a connector at each end. Note: Rytons recommend adding 200mm to the compartment measurement to ensure the connectors finish outside the void.
Properties: Class A1 fire-rated 0.5mm galvanised steel.
Product Code: A1CD125.
Download Drawing. | Download Golden Thread.
Rytons A1® Fire-rated Compartment Duct 150mm Dia.
Available with or without Rytons RD6CONN connectors for plastic ductwork attachment.
Custom overall length without connectors.
Custom overall length with a connector at one end. Note: Rytons recommend adding 100mm to the compartment measurement to ensure the connector finishes outside the void.
Custom overall length with a connector at each end. Note: Rytons recommend adding 200mm to the compartment measurement to ensure the connectors finish outside the void.
Properties: Class A1 fire-rated 0.5mm galvanised steel.
Product Code: A1CD150.
Download Drawing. | Download Golden Thread.
NBS Source Specifications:
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