Features and Benefits:
Rytons A1® Fire-rated External Weather Louvres
General Details
- External weather louvres custom-made in any size.
- Heavy duty grilles for air intake and exhaust.
- 45° blades allow a high air flow and provide excellent protection against water transfer.
- Wide fixing flange promotes easy installation and covers aperture/duct edges for a neat external appearance.
- Available with and without mesh screening.
- Manufactured from A1 classified galvanised steel.
- Supplied custom powder coated to Class A2-s1, d0. Choose from the RAL Classic colour chart in matt, semi-gloss or gloss finishes to match cladding or brickwork. Signature architectural finishes are also available.
- Bespoke design service available. For further information contact our Technical Sales Office on 01536 511874 or email admin@rytons.com.
- Suitable for:
- The external walls of high-rise relevant buildings over 18m high (11m high in Scotland).
- 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 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.
- All other residential and non-residential buildings.
A1 Fire Classification Explained:
- Rytons A1® Fire-rated External Weather Louvres 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.
Specifications:
Rytons A1® Fire-rated External Weather Louvre
47mm deep x 45° blades plus 25mm wide fixing flange with screw holes.
Rear frame: Custom width x height (refer to drawing). Note: Rytons recommend measurements 5mm smaller than the size of the aperture/duct for installation clearance. Any measurement over 1200mm will require the unit to be manufactured in sections bolted together.
Custom RAL colour in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
Free area formula: Rear frame W x H minus 40%.
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating.
Product Code: A1EWL.
Download Drawing. | Download Golden Thread.
Rytons A1® Fire-rated External Weather Louvre with Mesh
47mm deep x 45° blades plus 25mm wide fixing flange with screw holes.
Rear frame with mesh: Custom width x height (refer to drawing). Note: Rytons recommend measurements 5mm smaller than the size of the aperture/duct for installation clearance. Any measurement over 1200mm will require the unit to be manufactured in sections bolted together.
Custom RAL colour in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
Free area formula: Rear frame W x H minus 70%.
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A1 fire-rated 06-20FG flattened pre-galvanised steel mesh. Class A2-s1, d0 fire-rated RAL colour powder coating.
Product Code: A1EWLM.
Download Drawing. | Download Golden Thread.
Rytons is proud to be a family run business and British manufacturer since 1972
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