Rytons A1® Fire-rated Metal Ventilation Range

Rytons A1® Fire-rated Range

Rytons is proud to be the market leading manufacturer of Class A1 rated metal ventilation systems, enabling you to choose from a wide range of products to meet the fire safety requirements of your building. If you don’t see a product in our extensive A1 range to suit your application, Rytons A1® Special Service allows you to work with our experienced technical design team to modify existing products or create bespoke pieces from technical drawings. For further information, please call our technical sales office on 01536 511874 or email admin@rytons.com.

For your convenience, we have outlined below extracts from The Building Regulations, Approved Document B: Fire safety.

HIGH-RISE

RELEVANT BUILDINGS: Residential buildings over 18m high (11m high in Scotland)

RETROFIT: Residential buildings 11m high and above, undergoing unsafe cladding remediation work

REGULATION: Materials forming part of an external wall or specified attachment to be of European Classification A1 or A2-s1, d0.

ACHIEVED BY: Using products made of non-combustible materials within any space, forming part of the external wall.

RESIDENTIAL PURPOSE GROUPS 1 & 2: MORE THAN 11M HIGH

Buildings where people sleep on the premises
(residential, institutional or hospitality)

REGULATION: The external surfaces of external walls should comply with European Classification A2-s1, d0 or better.

ACHIEVED BY: Using products made of non-combustible materials when fixed to, or passing through, the external surface of the external wall.

RESIDENTIAL PURPOSE GROUPS 1 & 2: 11M HIGH OR LESS

Buildings where people sleep on the premises
(residential, institutional or hospitality)

REGULATION: The external surfaces of external walls within 1m of the relevant boundary should comply with European Classification B-s3, d2 or better.

ACHIEVED BY: Using products made of non-combustible materials when fixed to or passing through the external surface of an external wall. Note: As plastic cannot meet the B-s3, d2 criteria, alternative metal products will be required.