Rytons A1® Fire-rated Cowl
Verified by manufacturer 3 months ago
A1 fire-rated, non-combustible, surface mounted metal hooded cowl.
Application
Suitable for:
- The external walls of high-rise relevant buildings over 18 m high (11 m high in Scotland).
- The external walls of higher-risk buildings at least 18 m high or with at least seven storeys (Building Safety Act 2022).
- The external surfaces of residential purpose group buildings more than 11 m high.
- The external surfaces of residential purpose group buildings 11 m high or less where an external wall is within 1 m of the relevant boundary.
- All other residential and non-residential buildings.
Description
A1 fire-rated, non-combustible, surface mounted metal hooded cowl.
Features and benefits:
- Made-to-measure cover for new or existing air bricks, grilles and vents.
- Large and small sizes can be accommodated.
- Protects external grilles and vents from excessive environmental conditions such as rain and snow.
- Reduces air blasts through ductwork or the cavity.
- Manufactured from A1 classified galvanized 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.
- Made in Britain.
General information
Color | Other |
Finish | Powder-coated |
Material | Carbon steel |
Shape | Other |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Uniclass | |
CAWS | U90/310 Ventilators for heating appliances F30/17 Ventilation ducts in external walling F30/171 Ventilation ducts in external walling |
Specification data - Ventilation gratings
Apertures | Fire-rated cowl. |
Work sizes | Bepsoke.Guidance for specification option: Custom cowl opening width x height to cover vent/ grille plus 15 mm flange (with screw holes) top and sides. Note: Rytons recommend a cowl opening 10 mm larger than the vent/ grille for installation clearance. |
Material | Galvanized carbon steel. |
Colour | Manufacturer guidanceSupplied 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. Consult manufacturer for details and insert requirements. |
Reaction to fire | Class A1 fire-rated 0.9 mm galvanized steel. Class A2-s1, d0 fire-rated RAL colour powder coating. |
Sustainability data
Contains Red List materials | No |
Country of product manufacture | United Kingdom |
Material | Carbon steel |
Recyclability | Recyclable |