Upgrading plastic HVAC supply and extract ducting to a compliant A1 classified metal system can be complex in cladding remediation projects, as there are often issues with access and the original construction.
As the UK’s leading retrofit ducting specialist, Rytons has an extensive range of A1 Fire-rated Retrofit Ducting Kits for 100mm, 125mm and 150mm dia. round and 110mm x 54mm, 204mm x 60mm (s), 204mm x 60mm (d) and 220mm x 90mm rectangular systems.
Featuring oversize metal ductwork, the retrofit kits encase in-situ plastic ducting and terminate with a wide flange for secure fixing to the cavity board – allowing installation without accessing the apartment.
Kits also feature a unique 50mm deep telescopic fitting air brick, which is invaluable during installation as it allows minor variations in the external facade to be accommodated to give the best possible finish.
And, because sometimes standard sizing won’t work, Rytons has an A1 Special design service available, allowing you to create bespoke retrofit ducting kits – like those below and in our image gallery.
Should you wish to discuss a project with non-combustible ventilation requirements, please do not hesitate to call our technical sales team on 01536 511874 or email admin@rytons.com.
